Journal of Polymer Engineering最新文献_第8页

Promoting antibacterial activity of polyurethane blend films by regulating surface-enrichment of SiO₂ bactericidal agent 通过调控SiO2杀菌剂的表面富集来提高聚氨酯共混膜的抗菌活性

4区工程技术

Journal of Polymer Engineering Pub Date : 2023-10-26 DOI: 10.1515/polyeng-2023-0122

Guanglong Li, Shenwei Shi, Lexing Zhang, Ting Li, Yang Wang, Weifu Dong

{"title":"Promoting antibacterial activity of polyurethane blend films by regulating surface-enrichment of SiO<sub>2</sub> bactericidal agent","authors":"Guanglong Li, Shenwei Shi, Lexing Zhang, Ting Li, Yang Wang, Weifu Dong","doi":"10.1515/polyeng-2023-0122","DOIUrl":"https://doi.org/10.1515/polyeng-2023-0122","url":null,"abstract":"Abstract Polyurethane (PU) blended with nano-bactericidal agents was one of the most ways to obtain PU with antimicrobial properties. However, the bactericidal agent nanoparticles cannot effectively enrich the PU surface to reduce their antimicrobial properties. In this study, nano-silica particles with a large number of polar quaternary ammonium salt ( N , N -dimethyl-3-aminopropyl-12-alkyl-ammonium bromide trimethylsilyl, denoted as QAC) can easily enrich the PU surface to endow PU with excellent antibacterial properties after they were blended with PU film. The QAC on the surface of silica with different diameters (denoted as SiO 2 -Q- X ) can endow silica with antimicrobial properties and improve the repulsion between silica and PU to enhance the enrichment on PU surface of silica. A series of SiO 2 -Q- X /PU blend films were prepared and applied to inhibit the growth of the bacterial colony. The SiO 2 -Q- X /PU films can inhibit the growth of Gram-negative Escherichia coli and Gram-positive Staphylococcus epidermidis . The SiO 2 -Q- X with more polar QAC was easily enriched on the surface of PU and had a better bactericidal effect than those of SiO 2 -Q- X with a minor polar QAC. Moreover, the aging of the SiO 2 -Q- X /PU films did not affect their antibacterial effect.","PeriodicalId":16881,"journal":{"name":"Journal of Polymer Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136376165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving anti-aging performance of terminal blend rubberized bitumen by using graft activated crumb rubber 用接枝活化胶粒提高终端共混橡胶沥青的抗老化性能

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Journal of Polymer Engineering Pub Date : 2023-10-26 DOI: 10.1515/polyeng-2023-0073

Juan Xie, Xucheng Zhao, Wen He, Yongning Zhang, Yabing Xin

{"title":"Improving anti-aging performance of terminal blend rubberized bitumen by using graft activated crumb rubber","authors":"Juan Xie, Xucheng Zhao, Wen He, Yongning Zhang, Yabing Xin","doi":"10.1515/polyeng-2023-0073","DOIUrl":"https://doi.org/10.1515/polyeng-2023-0073","url":null,"abstract":"Abstract The appearance of terminal blend rubberized bitumen (TB) has improved a series of defects of traditional rubber bitumen, such as high viscosity, poor storage stability. Therefore, its wide application prospect is self-evident. However, different degrees of thermal-oxidative aging problem still exist in the process from production to use of TB, which seriously affects the service life of pavement. To improve the anti-aging performance of TB, grafting activated crumb rubber (GACR) was obtained by using acrylamide, and then compounded with TB. Firstly, TB was prepared in the self-developed nitrogen protection device. Secondly, GACR modified bitumen (GACR-MB), TB/CR composite modified bitumen (TB/CR) and TB/GACR composite modified bitumen (TB/GACR) were developed in the atmospheric environment. Finally, the performance of four kinds of crumb rubber modified bitumens before and after aging was compared and analyzed by testing high and low temperature rheological properties. The results show that GACR slowed down the formation rate and aggregation degree of asphaltenes and other macromolecular substances, and TB/GACR showed excellent aging resistance.","PeriodicalId":16881,"journal":{"name":"Journal of Polymer Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134908451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a high-strength carrageenan fiber with a small amount of aluminum ions pre-crosslinked in spinning solution 在纺丝液中预交联少量铝离子的高强度卡拉胶纤维的研制

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Journal of Polymer Engineering Pub Date : 2023-10-26 DOI: 10.1515/polyeng-2023-0151

Liting Jia, Xiao Han, Hongjie Zhai, Cuixia Qiao, Cunzhen Geng, Zhixin Xue, Yanzhi Xia

{"title":"Development of a high-strength carrageenan fiber with a small amount of aluminum ions pre-crosslinked in spinning solution","authors":"Liting Jia, Xiao Han, Hongjie Zhai, Cuixia Qiao, Cunzhen Geng, Zhixin Xue, Yanzhi Xia","doi":"10.1515/polyeng-2023-0151","DOIUrl":"https://doi.org/10.1515/polyeng-2023-0151","url":null,"abstract":"Abstract In this work, an improved wet spinning method was proposed to prepare high-tensile-strength carrageenan fibers by pre-crosslinking process. Pre-crosslinking was achieved by adding a small amount of Al 3+ ions into the spinning solution. The properties of the carrageenan spinning solution were analyzed by polarizing microscope, dynamic light scattering, and viscosity, the results showed that the modified spinning solution pre-crosslinked with Al 3+ ions was orderly and high-viscosity, and the average particle size of the spinning solution was increased. The properties of the carrageenan fibers were characterized using scanning electron microscope, Fourier transform infrared spectroscopy, X-ray diffraction spectroscopy, X-ray photoelectron spectroscopy, and tensile tests. The results showed that the new carrageenan fibers were formed by coordination and ionic bonds between Al 3+ , –OH and sulfate groups. The tensile strength was up to 1.77 cN/dtex of Al-3.0/CAF (the best of newly prepared carrageenan fiber in this work), which is the highest strength carrageenan fiber prepared at present. Compared with the traditional process, this method reduced the concentration of Al 3+ ions in coagulation bath and stretch bath, thus saving the production cost and protecting the environment.","PeriodicalId":16881,"journal":{"name":"Journal of Polymer Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136376990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and characterization of new formulation of biodegradable emulsified film based on polysaccharides blend and microcrystalline wax 基于多糖共混物和微晶蜡的可生物降解乳化膜新配方的研制与表征

4区工程技术

Journal of Polymer Engineering Pub Date : 2023-10-23 DOI: 10.1515/polyeng-2023-0048

Djalila Aoufi, Nabila Belloul, Aicha Serier

{"title":"Development and characterization of new formulation of biodegradable emulsified film based on polysaccharides blend and microcrystalline wax","authors":"Djalila Aoufi, Nabila Belloul, Aicha Serier","doi":"10.1515/polyeng-2023-0048","DOIUrl":"https://doi.org/10.1515/polyeng-2023-0048","url":null,"abstract":"Abstract The aim of the present work is the development and characterization of new formulation of emulsified films based on soluble starch/sodium alginate blend and microcrystalline wax. The developed films were studied in order to use them as new formulations to produce food packaging. The obtained films were generally homogeneous, thin, and slightly flexible. These films appeared more opaque compared to the non-emulsified film. Incorporation of microcrystalline wax was caused modifications of mechanical properties of films; these modifications were principally due to the formation of amylose–lipid complex. It was found that microcrystalline significantly reduced film water vapor permeability (WVP) of emulsified films. Atomic force microscope (AFM) was used to evaluate surface topography and roughness of the films. The surface topography was significantly affected, in the other word high roughness values were obtained. Microemultion formation in which the microcrystalline wax particles are distributed homogeneously within the polymer matrix was investigated by scanning electron microscopy (SEM). Moreover, the polysaccharides blend/microcrystalline wax emulsified films can be useful as a biodegradable packaging material to maintain the quality of food products.","PeriodicalId":16881,"journal":{"name":"Journal of Polymer Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135365514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of super critical carbon dioxide and alkali treatment on oxygen barrier properties of thermoplastic starch/poly(vinyl alcohol) films 超临界二氧化碳和碱处理对热塑性淀粉/聚乙烯醇膜阻氧性能的影响

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Journal of Polymer Engineering Pub Date : 2023-10-20 DOI: 10.1515/polyeng-2023-0157

Wei-xing Chen, Hong-juan Xu, Han-fang Mei, Ning Ma, Jen-taut Yeh

{"title":"Effect of super critical carbon dioxide and alkali treatment on oxygen barrier properties of thermoplastic starch/poly(vinyl alcohol) films","authors":"Wei-xing Chen, Hong-juan Xu, Han-fang Mei, Ning Ma, Jen-taut Yeh","doi":"10.1515/polyeng-2023-0157","DOIUrl":"https://doi.org/10.1515/polyeng-2023-0157","url":null,"abstract":"Abstract Sustainable oxygen barrier thermoplastic starch (TPS)/polyvinyl alcohol (PVA) blown films were successfully prepared by blending proper PVA loads during NaOH-treating and supercritical carbon dioxide (scCO 2 ) assisted processing. The NaOH-treated TPS or scCO 2 TPS films showed smaller free-volume-cavity characteristics (FVCC) and oxygen transmission rate (OTR) than those of TPS (or scCO 2 TPS) prepared without proper alkali-treatment. Smaller OTR and FVCC values were detected for NaOH-treated scCO 2 TPS films than those of NaOH-treated TPS films prepared without scCO 2 -assistance. All OTR and FVCC values detected for proper alkali-treated scCO 2 TPS y PVA z films diminished distinctly to a smallest value, when their PVA loads came near a solubility limit value of 27.5 wt%. An essential result is that the OTR of the optimal NaOH-treated scCO 2 TPS y PVA z film is merely 3.1 cm 3 /m 2 day atm, which meets the requirement of high oxygen barrier plastics. Dynamic molecular relaxations and WAXD patterns detected for proper NaOH-treated scCO 2 TPS y PVA z films disclosed that PVA was compatible with TPS, as PVA loads were ≤ the solubility limit value. The distinctly reduced OTR and FVCC detected for optimal NaOH-treated scCO 2 TPS y PVA z films are partially attributed to the reinforced molecular interactions between hydroxyl groups of TPS and PVA, as they were blended with proper PVA loads during their alkali-treating and scCO 2 -aid processing.","PeriodicalId":16881,"journal":{"name":"Journal of Polymer Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135567106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical simulation on the mixing behavior of double-wave screw under speed sinusoidal pulsating enhancement induced by differential drive 差动驱动速度正弦脉动增强下双波螺杆混流特性的数值模拟

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Journal of Polymer Engineering Pub Date : 2023-10-20 DOI: 10.1515/polyeng-2022-0318

Tian-lei Liu, Yao-xue Du, Xian-yun He

引用次数: 0

Study on the volatilization behavior of monomer and oligomers in polyamide-6 melt by dynamic film–forming device 用动态成膜装置研究聚酰胺-6熔体中单体和低聚物的挥发行为

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Journal of Polymer Engineering Pub Date : 2023-10-19 DOI: 10.1515/polyeng-2023-0142

Xia Zhu, Linzhong Tao, Liping Chen, Siwei Xiong, Feihua Yang, Yingbin Jia, Luoxin Wang, Hua Wang

{"title":"Study on the volatilization behavior of monomer and oligomers in polyamide-6 melt by dynamic film–forming device","authors":"Xia Zhu, Linzhong Tao, Liping Chen, Siwei Xiong, Feihua Yang, Yingbin Jia, Luoxin Wang, Hua Wang","doi":"10.1515/polyeng-2023-0142","DOIUrl":"https://doi.org/10.1515/polyeng-2023-0142","url":null,"abstract":"Abstract In this study, a modified torque rheometer is used to investigate the volatilization behavior of monomer and oligomers in polyamide-6 (PA6) melt under dynamic film–forming conditions with negative pressure. The surface renewal model is employed to simulate the volatilization behavior. The effects of actual processing factors and simulation results on the volatilization behavior of monomer and oligomer are analyzed comparatively. It is found that the monomer and oligomers removal rate increase continuously with increasing temperature, residence time, and rotational speed. And, the cyclic dimer, which is extremely harmful to spinning, can be removed. It is found that the removal of monomer and oligomers continued to increase with increasing temperature, residence time, and spinning speed. Moreover, cyclic dimers, which are extremely harmful to spinning, are also removed. Additionally, it is discovered that the polycondensation reaction of PA6 results in an increase in the molecular weight and viscosity at lower temperatures (250 °C), while a higher temperature (270 °C) and shear rate (150 r/min) cause a reduction in viscosity and molecular weight.","PeriodicalId":16881,"journal":{"name":"Journal of Polymer Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135667049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and properties of ABS/BNNS composites with high thermal conductivity for FDM FDM用高导热ABS/BNNS复合材料的制备及性能研究

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Journal of Polymer Engineering Pub Date : 2023-10-17 DOI: 10.1515/polyeng-2023-0188

Caifeng Chen, Wuwen Zhong, Junhao Guo, Kai Liu, Andong Wang

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Frontmatter 头版头条

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Journal of Polymer Engineering Pub Date : 2023-10-01 DOI: 10.1515/polyeng-2023-frontmatter9

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Effect of molecular weight distribution on the structure and properties of polypropylene cast film and stretched microporous membrane 分子量分布对聚丙烯铸膜和拉伸微孔膜结构和性能的影响

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Journal of Polymer Engineering Pub Date : 2023-09-27 DOI: 10.1515/polyeng-2023-0118

Dahua Chen, Liangdong Yin, Zhixiang Su, Jiayi Xie, Ruijie Xu, Caihong Lei

引用次数: 0