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Alternative splicing of tanshinone synthesis genes and related splicing factors in Salvia miltiorrhiza in response to hormones 丹参酮合成基因的选择性剪接及相关剪接因子对激素的响应
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120372
Yi Zhang , Li Hao , Xingchen Liu , Fanyi Zhang , Xiaolin Bai , Yongmei Zhang
{"title":"Alternative splicing of tanshinone synthesis genes and related splicing factors in Salvia miltiorrhiza in response to hormones","authors":"Yi Zhang ,&nbsp;Li Hao ,&nbsp;Xingchen Liu ,&nbsp;Fanyi Zhang ,&nbsp;Xiaolin Bai ,&nbsp;Yongmei Zhang","doi":"10.1016/j.indcrop.2024.120372","DOIUrl":"10.1016/j.indcrop.2024.120372","url":null,"abstract":"<div><div>Phytohormones have been shown to stimulate tanshinone synthesis in <em>Salvia miltiorrhiza</em> Bunge. Alternative splicing (AS) and splicing factors (SFs) play crucial roles in the regulation of metabolic processes in response to hormonal signals. However, whether hormones affect tanshinone synthesis through AS remains unclear. In this study, we first screened the existing AS events in tanshinone-associated genes in <em>S</em>. <em>miltiorrhiza</em>, utilizing the transcriptome from hairy roots or roots treated with abscisic acid (ABA), gibberellin (GA), indole-3-acetic acid (IAA), and methyl jasmonate (MeJA). Our analysis identified 12 tanshinone-associated genes harboring alternative spliced isoforms, resulting in a total of 38 AS events. Notably, seven of these events demonstrated dynamic responses to hormones, including SmbHLH3;A3, which was influenced by both MeJA and ABA. Furthermore, the SFs related to those AS events were identified through correlation analysis. A serine/arginine-rich SF stood out with a positive association with many genes involved in tanshinone synthesis, including <em>SmbHLH3</em>. Additionally, we employed weighted gene correlation network analysis (WGCNA) to investigate other AS events potentially involved in tanshinone regulation in response to hormones. The event LOC130987356;A5, which was commonly regulated by ABA, GA, IAA, and MeJA, was an important candidate, with its associated gene module enriched in terpenoid backbone biosynthesis pathway, the critical upstream process in tanshinone production. These findings advance our understanding of the role of AS in the regulation of tanshinone synthesis in response to phytohormones, and facilitate the further exploration aimed at modulating tanshinone production.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120372"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-step fabrication of cellulose nanofibrous membrane with anchored particulate polydopamine for multifunctional oil/water separation 固定化聚多巴胺纳米纤维素膜一步法制备多功能油水分离
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120327
Bairui Zhang , Chenghong Ao , Zhiwei Zhang , Yan Xie , Shakeel Ahmad , Danping Wu , Xinwei Dong , Bo Pan
{"title":"One-step fabrication of cellulose nanofibrous membrane with anchored particulate polydopamine for multifunctional oil/water separation","authors":"Bairui Zhang ,&nbsp;Chenghong Ao ,&nbsp;Zhiwei Zhang ,&nbsp;Yan Xie ,&nbsp;Shakeel Ahmad ,&nbsp;Danping Wu ,&nbsp;Xinwei Dong ,&nbsp;Bo Pan","doi":"10.1016/j.indcrop.2024.120327","DOIUrl":"10.1016/j.indcrop.2024.120327","url":null,"abstract":"<div><div>Superwetting membranes with high water flux and multiple functions are desirable in industry. Herein, a one-step electrospinning strategy is proposed for constructing electrospun cellulose nanofibrous membranes containing numerous particulate polydopamine (PDA) molecules, using ethanol to delay the polymerisation rate of dopamine (DA). The effects of ethanol on the particulate PDA formation and the membrane’s pore sizes were discussed in detail. Notably, the hydrophilic particulate PDA anchored on the fibres enhanced surface roughness, thus improving the hydrophilicity of the membranes. Moreover, with an increase in the DA dosage, the pore size of the membrane decreased, while the water flux for the oil/water mixture was maintained. In addition, the as-prepared membrane could efficiently separate small-sized oil/water emulsions and particulate matter with separation efficiencies greater than 99 % because of its narrow pore size distribution and high hydrophilicity (water contact angle of ∼0°). Due to the adsorption sites on PDA, the membrane could also separate dyeing wastewater containing emulsified oils, particles, and dyes. This work offers a feasible approach to addressing the limitations of conventional electrospun polymer membranes, such as complex preparation processes, low water flux at small pore sizes, and limited ability to separate multiple types of pollutants.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120327"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on biocontrol potential of volatile organic compounds produced by Pseudomonas atacamensis GZ-3 on poplar anthracnose atacampseudomonas atacamensis GZ-3挥发性有机物对杨树炭疽病的生物防治潜力研究
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120402
Wei Ge , Linxuan Zhang , Fanli Meng , Chengming Tian
{"title":"Study on biocontrol potential of volatile organic compounds produced by Pseudomonas atacamensis GZ-3 on poplar anthracnose","authors":"Wei Ge ,&nbsp;Linxuan Zhang ,&nbsp;Fanli Meng ,&nbsp;Chengming Tian","doi":"10.1016/j.indcrop.2024.120402","DOIUrl":"10.1016/j.indcrop.2024.120402","url":null,"abstract":"<div><div>Poplar anthracnose caused by <em>Colletotrichum gloeosporioides</em> is one of the major forest diseases worldwide, causing incalculable losses in forestry production every year. In this study, an endophytic bacterium with significant antagonistic activity against <em>C. gloeosporioides</em> was isolated from <em>Populus canadensis</em> leaves, identified and named <em>Pseudomonas atacamensis</em> GZ-3. The specific biological functions of strain GZ-3 were analyzed using whole genome sequencing. The volatile organic compounds (VOCs) produced by strain GZ-3 had good antifungal activity against <em>C. gloeosporioides</em>. These VOCs could effectively inhibit mycelial growth and conidial germination of <em>C. gloeosporioides</em>. In addition, metabolomics analysis revealed that VOCs could help poplar resist infection of <em>C. gloeosporioides</em> by inducing the synthesis of flavonoids in poplar. 3-methyl-1-butanol and 2-heptanone were the main antifungal compounds in VOCs. Therefore, <em>Pseudomonas atacamensis</em> GZ-3 had good potential for biocontrol. This study provided a new strategy for the biological control of poplar anthracnose.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120402"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental study on the synergy between lignin and cellulose during co-torrefaction and its impact on the properties and structural characteristics of pyrolysis biochar 木质素和纤维素在共焙烧过程中的协同作用及其对热解生物炭性能和结构特征影响的实验研究
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120383
Mian Liu, Xiaoran Li, Jinjin Li, Xiayu Ni, Lingzhi Zhu, Kehui Cen, Dengyu Chen
{"title":"Experimental study on the synergy between lignin and cellulose during co-torrefaction and its impact on the properties and structural characteristics of pyrolysis biochar","authors":"Mian Liu,&nbsp;Xiaoran Li,&nbsp;Jinjin Li,&nbsp;Xiayu Ni,&nbsp;Lingzhi Zhu,&nbsp;Kehui Cen,&nbsp;Dengyu Chen","doi":"10.1016/j.indcrop.2024.120383","DOIUrl":"10.1016/j.indcrop.2024.120383","url":null,"abstract":"<div><div>This study aims to investigate the synergy between lignin and cellulose during co-torrefaction, as well as the influence of torrefaction temperature and mixing ratio on the basic properties and structural characteristics of the feedstocks and biochar. To this end, both single-component and co-torrefaction pretreatments with lignin and cellulose feedstocks were conducted at 220 ℃, 260 ℃, and 300 ℃, followed by pyrolysis at 550 ℃. The results showed that the torrefaction process led to increased fixed carbon and C content, lower volatiles and O content, and enhanced higher heating value (HHV). In addition, torrefaction decreased the crystallinity of cellulose while increasing that of lignin. For the co-torrefaction samples, crystallinity generally decreased after torrefaction, and this decrease was positively correlated with the cellulose ratio. Torrefaction also enhanced the degree of graphitization of the feedstocks through the removal of oxygen-containing functional groups. However, the elemental content and HHV of the biochar were largely unaffected. It was also found that lignin and cellulose exhibited synergy during co-torrefaction, which promoted the transition of feedstocks and biochar to higher carbon content and HHV while accelerating the removal of oxygen-containing functional groups. XPS analysis showed that under medium and high temperatures (260 ℃ and 300 ℃), co-torrefaction inhibited the decomposition of functional groups such as C-C, C<img>C, C-H, -OH, and C-O-C in the biochar, while promoting the decomposition of oxygen-containing functional groups such as C<img>O, -COOH, and -COO. This study elucidates the notable role of co-torrefaction in improving the properties and pyrolysis performance of biomass components.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120383"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lipidomic remodeling in Cannabis sativa L. under cold tolerance 耐寒条件下大麻脂质组学的重塑
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120346
Bowei Yan , Chuanyi Chang , Yingnan Gu , Yue Sui , Nan Zheng , Yuyan Fang , Yuanye Zhang , Ming Zhang , Jingyu Xu , Liguo Zhang
{"title":"Lipidomic remodeling in Cannabis sativa L. under cold tolerance","authors":"Bowei Yan ,&nbsp;Chuanyi Chang ,&nbsp;Yingnan Gu ,&nbsp;Yue Sui ,&nbsp;Nan Zheng ,&nbsp;Yuyan Fang ,&nbsp;Yuanye Zhang ,&nbsp;Ming Zhang ,&nbsp;Jingyu Xu ,&nbsp;Liguo Zhang","doi":"10.1016/j.indcrop.2024.120346","DOIUrl":"10.1016/j.indcrop.2024.120346","url":null,"abstract":"<div><div>In order to explore the lipidomic remodeling mechanisms and biological basis of hemp response to cold stress, the physiological and biochemical indices of hemp were analyzed, and a regulatory network for lipid metabolism under cold stress (4 ℃) was constructed. The results revealed that cold stress, inhibited the growth and development of hemp, with the total fresh weight decreasing by 29∼37 %, and the total dry weight decreasing by 17∼22 %. Additionally, the photosynthesis system was damaged, prompting plants to produce osmotic regulators and activate protective enzymes. Lipidomic analysis revealed that galactolipids, including MGDG, DGDG, and SQDG, were the dominant membrane lipids in hemp leaves, accounting for 70 % of the total membrane lipid components. Notably, some lipid remodeling was observed in hemp leaf tissue 3 d after cold stress treatment. Specifically, higher PC/PE and DGDG/MGDG ratios, along with a 53 % increase in PA levels, highlighted the critical role of membrane lipid remodeling and fatty acid unsaturation in hemp adaptation to cold stress. The transcriptomic analysis revealed that the lipid metabolism pathways were activated, with 732 genes associated with lipid metabolic pathways were identified. These genes were primarily enriched in the pathways related to TAG synthesis, fatty acid metabolism, and membrane lipid metabolism. A novel metabolic regulatory network for hemp lipids under cold stress was constructed, offering some insights into the molecular events underlying changes in membrane lipids during cold stress and identifies the key lipids and pathways responsible for resilience to such stress, thereby facilitating the development of new approaches for crop tolerance to stress.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120346"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptome analysis reveals key genes involved in the degradation of corn cobs by Auricularia heimuer 转录组分析揭示了黑木耳(Auricularia heimuer)降解玉米芯的关键基因
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120417
Nannan Geng, Haoyu Mi, Zengcai Liu, Li Zou
{"title":"Transcriptome analysis reveals key genes involved in the degradation of corn cobs by Auricularia heimuer","authors":"Nannan Geng,&nbsp;Haoyu Mi,&nbsp;Zengcai Liu,&nbsp;Li Zou","doi":"10.1016/j.indcrop.2024.120417","DOIUrl":"10.1016/j.indcrop.2024.120417","url":null,"abstract":"<div><div><em>Auricularia heimuer</em>, a prevalent white-rot fungus, is recognized for its efficient ability to degrade lignocellulose, positioning it as a promising species for the bioconversion of agricultural waste. To reduce cultivation costs and enhance the utilization of agricultural residues, this study investigates the potential of using corn cobs as a sustainable alternative to wood chips. <em>A. heimuer</em> was cultured on glucose, corn cobs, and wood chips to investigate its degradation mechanisms on corn cobs. Enzyme activity assays indicated a significant increase in filter paper enzyme activity when <em>A. heimuer</em> was grown on the corn cobs substrate. To further explore the changes in lignocellulose-degrading enzyme genes, transcriptome sequencing was performed on <em>A. heimuer</em> mycelia cultivated with three carbon sources. The results revealed that differentially expressed genes were significantly enriched in pathways such as starch and sucrose metabolism, pentose and glucuronate interconversions, and carbon metabolism. Transcriptome analysis indicated 50 differentially expressed lignocellulose-degrading enzyme genes, with those related to cellulose and hemicellulose degradation being significantly upregulated on the corn cobs substrate. These findings underscore the potential of <em>A. heimuer</em> to efficiently degrade cellulose and hemicellulose in corn cobs, supporting the use of corn cobs as a sustainable substrate in <em>A. heimuer</em> cultivation.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120417"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142905122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corn straw cellulose nanocrystals: Preparation, structural coloration, and high-level anti-counterfeiting 玉米秸秆纤维素纳米晶:制备、结构着色及高水平防伪
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120393
Xin-Jun Li, Yu-Yao Zhao, Qiang-Wu Tan, Zhuo-Hang Han, Bo Tang, Yu-Zhong Wang, Fei Song
{"title":"Corn straw cellulose nanocrystals: Preparation, structural coloration, and high-level anti-counterfeiting","authors":"Xin-Jun Li,&nbsp;Yu-Yao Zhao,&nbsp;Qiang-Wu Tan,&nbsp;Zhuo-Hang Han,&nbsp;Bo Tang,&nbsp;Yu-Zhong Wang,&nbsp;Fei Song","doi":"10.1016/j.indcrop.2024.120393","DOIUrl":"10.1016/j.indcrop.2024.120393","url":null,"abstract":"<div><div>Cellulose nanocrystals (CNCs) are drawing increasing attention for offering versatile and sustainable building blocks that can self-organize into lyotropic cholesteric liquid crystal phases in solid materials. However, their preparation has been limited to raw material sources holding significant economic and ecological value in agriculture and industry. Considering the high-value utilization of agricultural waste straws as well as the sustainable development of optical cellulosic materials, here, we demonstrate the extraction and preparation of CNCs capable of self-assembling into structural color arrays from waste corn straws. Notably, through a series of chemical treatments and controlled acid hydrolysis, straw CNCs with moderate dimension and surface charge density are obtained. In this case, the requirements of particle size, surface charge, and rheological properties are clarified for the self-assembly into helicoidal orders, and the kinetic arrest mechanism for generating structural colors is discussed. Furthermore, by utilizing wide structural color regulation and the left-handed cholesteric nature, and combining this with the “Coloring Klotski Puzzle” for the first time, a multi-color array having significant storage information capacity is fabricated, realizing advanced multi-level encryption. These findings pave the way for high-value utilization of agricultural wastes and sustainable development of photonic cellulosic materials.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120393"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142905124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel organic-inorganic composite flame-retardant coating with excellent compatibility provides superior flame retardancy and smoke suppression for wood 一种新型的有机-无机复合阻燃涂料,具有优异的相容性,为木材提供了优异的阻燃性和抑烟性
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120286
Ying Ran, Jianliang Ding, Fei Yang, Qichao Bao, Jiawei Zhu, Chungui Du, Pengxu Tao, Xilong Wang, Shengnan Zhang, Wenxiu Yin
{"title":"A novel organic-inorganic composite flame-retardant coating with excellent compatibility provides superior flame retardancy and smoke suppression for wood","authors":"Ying Ran,&nbsp;Jianliang Ding,&nbsp;Fei Yang,&nbsp;Qichao Bao,&nbsp;Jiawei Zhu,&nbsp;Chungui Du,&nbsp;Pengxu Tao,&nbsp;Xilong Wang,&nbsp;Shengnan Zhang,&nbsp;Wenxiu Yin","doi":"10.1016/j.indcrop.2024.120286","DOIUrl":"10.1016/j.indcrop.2024.120286","url":null,"abstract":"<div><div>Wood is a sustainable biomass material, valued for its renewability and environmental friendliness. The intrinsic flammability of wood can restrict its functional applications. The application of flame retardant coatings represents an efficient strategy to enhance the fire retardancy profiles of wood. However, currently used inorganic flame retardants with organic acrylic emulsion (AE) suffer from easy caking and reduced flame retardancy. A novel organic-inorganic CaAl-AA-LDH@AE composite flame retardant coating system based on wood was developed using environmentally friendly and highly thermally stable calcium-aluminium-type layered double hydroxide (CaAl-LDH) as the flame retardant. The successful synthesis of the organic-inorganic CaAl-AA-LDH composite flame retardant was confirmed by characterisation analytical techniques. The results of the surface roughness testing demonstrated that the average values of surface roughness (Ra) and irregularity height (Rz) for the organic-inorganic composite flame retardant paint exhibited notable reductions of 57.91 % and 54.72 %, respectively, compared with the unmodified flame retardant paint. The excellent compatibility of the organic-inorganic CaAl-AA-LDH in organic acrylic coatings markedly enhances the overall aesthetic and flame retardant properties of composite flame retardant coating. The heat release rate (HRR) of the organic-inorganic composite flame-retardant coating treated wood was reduced by 56.21 % and 20.78 %, the total smoke production (TSP) was decreased by 49.69 % and 20.25 %, and the residue mass increased by 64.13 % and 16.20 %, compared to unflame retarded wood and wood treated with unmodified flame retardant coating, respect tively. The organic-inorganic CaAl-AA-LDH@AE composite flame-retardant coating exhibits favourable, compatibility and flame-retardant properties, contributing significantly to the sustainable development and application of wood-based materials.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120286"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142816319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Natural rubber latex grafted with polyacrylamide as the cement admixture for improving flexural strength and toughness of cement pastes 用天然胶乳接枝聚丙烯酰胺作为水泥外加剂,提高水泥浆体的抗弯强度和韧性
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120310
Songkot Utara , Aphirak Loykaew , Santi Khoonsap , Sompin Mahakot , Sittipong Amnuaypanich
{"title":"Natural rubber latex grafted with polyacrylamide as the cement admixture for improving flexural strength and toughness of cement pastes","authors":"Songkot Utara ,&nbsp;Aphirak Loykaew ,&nbsp;Santi Khoonsap ,&nbsp;Sompin Mahakot ,&nbsp;Sittipong Amnuaypanich","doi":"10.1016/j.indcrop.2024.120310","DOIUrl":"10.1016/j.indcrop.2024.120310","url":null,"abstract":"<div><div>Natural rubber latex grafted with polyacrylamide (NRL-<em>g</em>-PAM) was employed as the cement admixture for cement pastes. During the preparation of cement pastes, adding NRL-<em>g</em>-PAM improved the homogeneity of freshly prepared cement pastes compared to unmodified NRL. The presence of NRL retarded the hydration of cement, and the retardation was more pronounced with increasing NRL content in the cement pastes. However, the chemical structures of the hydration cement pastes remained unaffected by the presence of natural rubber (NR). Scanning electron microscope (SEM) images of NRL-<em>g</em>-PAM-modified cement pastes revealed the formation of polymeric films in the cement matrix. Beneficially, the polymeric film of NR in the cement pastes enhanced the toughness due to the effective energy absorption of an elastomeric NR. Compared with unmodified cement paste, adding NR-<em>g</em>-PAM improved the flexural strength, which arises from enhanced rubber-cement matrix bonding to compensate for a reduction of cement bonding and cementitious products.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120310"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating the structure-performance correlation of amines based recyclable vanillin epoxy thermosets 胺基可回收香兰素环氧热固性材料的结构-性能相关性研究
IF 5.6 1区 农林科学
Industrial Crops and Products Pub Date : 2025-02-01 DOI: 10.1016/j.indcrop.2024.120303
Muhammad Abdur Rashid, Md. Yousuf Ali, Md. Ariful Islam, Md. Abdullahil Kafi
{"title":"Investigating the structure-performance correlation of amines based recyclable vanillin epoxy thermosets","authors":"Muhammad Abdur Rashid,&nbsp;Md. Yousuf Ali,&nbsp;Md. Ariful Islam,&nbsp;Md. Abdullahil Kafi","doi":"10.1016/j.indcrop.2024.120303","DOIUrl":"10.1016/j.indcrop.2024.120303","url":null,"abstract":"<div><div>Developing high-performance polymers in a sustainable and simple manner while efficiently converting renewable resources is extremely challenging. In this study, three different diamine (aliphatic, cyclic, and aromatic) derived curing agents with dynamic imine covalent bond were successfully synthesized using vanillin and their chemical structures were validated by FTIR, GCMS and NMR spectroscopy. Further, curing behavior, mechanical and thermal properties of the resulting epoxy thermosets were investigated by DSC, tensile analysis, TGA, and DMA. The curing response of aliphatic amine-derived epoxy polymer shows significantly higher but lower flexural strength (∼37 %), flexural modulus (∼53 %), <em>T</em><sub><em>g</em></sub> (∼52 %), storage modulus (∼8 %), <em>T</em><sub><em>d5 %</em></sub> (∼4.5 %), and Char<sub>700</sub> (∼54 %) properties due to the steric-hindrance of aromatic and cyclic rings in the molecular structures. Moreover, these epoxy thermosets can be reprocessed, and repaired several times without losing their mechanical and thermal properties due to incorporate dynamic imine bond into their molecular structures. Notably, the pendant backbone-chain in curing agents significantly influences the dynamic manners of the cured thermosets and aliphatic-chain exhibits the quickest stress relaxation performance. Finally, all cured products showed excellent chemical stability in various solvents. These remarkable findings offer important clues for comprehending the structure-property link of recyclable epoxy thermosets with different amine-derivatives.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"224 ","pages":"Article 120303"},"PeriodicalIF":5.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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