Journal of Elastomers & Plastics最新文献_第9页

Performance of elastomeric spur gear under dry and oil-lubricated conditions 弹性正齿轮在干润滑和油润滑条件下的性能

Journal of Elastomers & Plastics Pub Date : 2022-12-07 DOI: 10.1177/00952443221144738

Sarita Bharti, S. Senthilvelan

引用次数: 0

Influence of high temperature GPC/SEC detection modes on the accurate molar mass estimation of slurry phase multimodal HDPE reactor materials 高温GPC/SEC检测模式对浆相多模态HDPE反应器材料摩尔质量准确估计的影响

Journal of Elastomers & Plastics Pub Date : 2022-12-06 DOI: 10.1177/00952443221144741

Y. Subbaiah, Qua Eng Hau, Ghazai Miqad Al Otaibi

{"title":"Influence of high temperature GPC/SEC detection modes on the accurate molar mass estimation of slurry phase multimodal HDPE reactor materials","authors":"Y. Subbaiah, Qua Eng Hau, Ghazai Miqad Al Otaibi","doi":"10.1177/00952443221144741","DOIUrl":"https://doi.org/10.1177/00952443221144741","url":null,"abstract":"In the present study, trimodal high-density polyethylene (tri-HDPE) slurry phase samples from the polymerization reactors were subjected to high temperature gel permeation chromatography/size exclusion chromatography (HT-GPC/SEC) analysis. The molecular weight (Mw) and its distributions were evaluated using commercially available HT-GPC instruments equipped with different detection modes (DRI, IR5 MCT, and light scattering). The SEC studies reveal the fact that there is a considerable challenge in generating a repeatable and reproducible data for the reactor grade HDPE samples which could be attributed to different detection modes employed and instability of HDPE reactor grades which are susceptible to undergo thermo-oxidative degradation during HT-GPC analysis. Among various instrumentation and detection modes investigated, the HT-GPC with IR5 MCT detection showed reliable results (%Error <15) when compared with absolute Mw data obtained from MALS detection. Based on the findings, proposed suitable SEC mode to characterize the HDPE reactor grade polymer samples.","PeriodicalId":15613,"journal":{"name":"Journal of Elastomers & Plastics","volume":"43 1","pages":"155 - 164"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74221383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Epoxidized natural rubber composites containing K0.15Cr0.02Ni0.83O nanoparticles: Curing characteristics, dynamic mechanical, mechanical, morphological, and dielectric properties 含k0.15 cr0.02 ni0.830纳米颗粒的环氧化天然橡胶复合材料:固化特性、动态力学、力学、形态和介电性能

Journal of Elastomers & Plastics Pub Date : 2022-12-06 DOI: 10.1177/00952443221144739

B. Khumpaitool, P. Jantachum, S. Utara

{"title":"Epoxidized natural rubber composites containing K0.15Cr0.02Ni0.83O nanoparticles: Curing characteristics, dynamic mechanical, mechanical, morphological, and dielectric properties","authors":"B. Khumpaitool, P. Jantachum, S. Utara","doi":"10.1177/00952443221144739","DOIUrl":"https://doi.org/10.1177/00952443221144739","url":null,"abstract":"Many researchers have been trying to improve rubber composites because they are commonly used in a wide range of applications. Incorporation of nano-fillers in a rubber matrix is the most acceptable way to improve the mechanical and electrical properties of rubber composites. A nanometer-sized filler, such as K0.15Cr0.02Ni0.83O (KCNO), has rarely been used to improve the properties of rubber composites. Epoxidized natural rubber (ENR) was chosen for blending with KCNO nanoparticles based on its polarity and chemical resistance. The aim of this work is to investigate the effects of filler loading (0.5, 1.5, and 5 phr) on the curing characteristics, dynamic mechanical, mechanical, morphological, and dielectric properties of rubber composites. From the results, rubber vulcanizates with 1.5 phr of KCNO as filler exhibit better tensile strength and 500% modulus compared to other ENR specimens containing KCNO. ENR containing 1.5 phr of KCNO also has a higher storage modulus (E′) and glass transition temperature (Tg). The results of a microstructural characterization on a sample containing 1.5 phr of KCNO show that the natural rubber matrix and KCNO are effectively dispersed, indicating that the rubber and KCNO are likely well-matched, therefore curing simultaneously and forming a continuous phase. Furthermore, ENR containing 1.5 phr of KCNO has a greater dielectric constant (12.87 at 5 kHz) than other samples.","PeriodicalId":15613,"journal":{"name":"Journal of Elastomers & Plastics","volume":"123 1","pages":"116 - 133"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76768331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fatigue life prediction and fracture mechanism of styrene-butadiene-styrene thermoplastic elastomer under uniaxial tension 苯乙烯-丁二烯-苯乙烯热塑性弹性体单轴拉伸疲劳寿命预测及断裂机理

Journal of Elastomers & Plastics Pub Date : 2022-12-06 DOI: 10.1177/00952443221144743

Yuxin Liu, Rulong Wu, Liangyan Liao

{"title":"Fatigue life prediction and fracture mechanism of styrene-butadiene-styrene thermoplastic elastomer under uniaxial tension","authors":"Yuxin Liu, Rulong Wu, Liangyan Liao","doi":"10.1177/00952443221144743","DOIUrl":"https://doi.org/10.1177/00952443221144743","url":null,"abstract":"The fatigue life and prediction of styrene-butadiene-styrene thermoplastic elastomer (SBS) under the action of uniaxial tension was investigated, and the fatigue fracture mechanism was analyzed. With the increases of amplitude and frequency, the fatigue life of SBS decreases. The fatigue life of SBS under the amplitude and frequency was predicted, and the shift factor was applied to predict the fatigue life of SBS at the other frequency and amplitude. With the increase of temperature, the fatigue life decreases first and then increases. The fatigue fracture surface presents crack source region, crack propagation region, and instantaneous fracture region. At – 40°C, the crack source region is rough, and the crack propagation region and instantaneous fracture region are rough with the rib morphology. With the increase of temperature at 23°C, the crack source region is relatively flat, and the crack propagation region presents the undulant surface. With the temperature further increased up to 50°C, the fracture surface is very flat, and the shell lines could be clearly seen. The crack growth rate of SBS increases with the increase of temperature. The gel structure of SBS is formed at high temperature through the chemical crosslinking.","PeriodicalId":15613,"journal":{"name":"Journal of Elastomers & Plastics","volume":"88 1","pages":"99 - 115"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75914421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal degradation and thermal kinetic of SEBS block copolymer compatibilized PS/HDPE blends SEBS嵌段共聚物增容PS/HDPE共混物的热降解及热动力学研究

Journal of Elastomers & Plastics Pub Date : 2022-11-26 DOI: 10.1177/00952443221140473

Massimo Ujčič, M. Levak, Nina Vranjes Penava, E. Govorčin Bajsić, V. Kosar

引用次数: 2

Self-healable, strengthened, shape memory elastomers enabled by dual cross-linked networks 自我修复，加强，形状记忆弹性体启用双交联网络

Journal of Elastomers & Plastics Pub Date : 2022-11-17 DOI: 10.1177/00952443221140466

Lin Wang, Chenlu Wang, W. Sun, A. Du

{"title":"Self-healable, strengthened, shape memory elastomers enabled by dual cross-linked networks","authors":"Lin Wang, Chenlu Wang, W. Sun, A. Du","doi":"10.1177/00952443221140466","DOIUrl":"https://doi.org/10.1177/00952443221140466","url":null,"abstract":"We propose a strategy of combining covalent and noncovalent cross-links into carboxyl nitrile rubber (XNBR) networks to fabricate multifunctional elastomers with self-healing and shape memory ability. Specially, commercially available XNBR was cross-linked by diethylenetriamine (DETA) and trimethylolpropane tris(3-mercaptopropionate) (TMPT) through hydrogen bond interaction and thiol-ene “click” reaction, generating reversible hydrogen bonds and robust covalent bonds cross-links, respectively. The modulus of the resulted polymers is consistently enhanced with the increase of TMPT loading, indicating the cross-linking networks are gradually constrained. In addition, the samples demonstrate self-healing and shape memory functions due to the reversible hydrogen bonds and robust covalent cross-links. When the content of TMPT is 0, the sample shows the high elongation at break and appropriate tensile strength. It can achieve almost complete healing due to the material contains noncovalent bonds only. When the content of TMPT is 2 phr, the sample exhibits both pretty self-healing and moderate shape memory ability. This strategy might provide an alternative way to construct intelligent multifunctional polymers with versatile functions.","PeriodicalId":15613,"journal":{"name":"Journal of Elastomers & Plastics","volume":"1 1","pages":"67 - 81"},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72953000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative study of different bis-citraconimides as anti-reversion agents in natural rubber 不同双柠檬酸亚胺在天然橡胶中抗逆转剂的比较研究

Journal of Elastomers & Plastics Pub Date : 2022-11-15 DOI: 10.1177/00952443221138914

Mingbin He, Lijing Zou, Zhaohui Chen, Ruoming Huang

{"title":"Comparative study of different bis-citraconimides as anti-reversion agents in natural rubber","authors":"Mingbin He, Lijing Zou, Zhaohui Chen, Ruoming Huang","doi":"10.1177/00952443221138914","DOIUrl":"https://doi.org/10.1177/00952443221138914","url":null,"abstract":"Sulfur-cured natural rubber (NR) commonly accompanies reversion, which severely impacts the properties as well as service life of NR products. Introducing anti-reversion agents is one of the most effective ways to counteract reversion. In this work, five structurally different bis-citraconimides have been synthesized and used as anti-reversion agents for sulfur-cured NR. In detail, the differences of anti-reversion agents in the cure characteristics, cross-linked structure, physical-mechanical properties, heat build-up, and dynamic mechanical properties of sulfur-cured NR are investigated in order to elaborate on the differences in reactivity and cross-linking chemistry of anti-reversion agents. The results show that N,N′-p-phenylene-biscitraconimide (BCmB) provides the best anti-reversion performance for compound cured at 150°C, with N,N′-p-phenylene-biscitraconimide (BCpB) following closely behind. Although Perkalink 900 (1,3-bis(citraconimidomethyl)benzene: BCDB), 1,3-bis(citraconimido)isobutane (BIB), and 1,6-bis(citraconimido)hexane (BCH) are less effective than BCmB and BCpB in improving the anti-reversion performance of compound cured for a short period of time or cured at 150°C, they show better anti-reversion performance of compound cured for a longer time or cured at higher vulcanization temperature.","PeriodicalId":15613,"journal":{"name":"Journal of Elastomers & Plastics","volume":"20 1","pages":"46 - 66"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80949020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of micro crystalline cellulose on EPDM-based automotive sealing profile 微晶纤维素对epdm基汽车密封型材的影响

Journal of Elastomers & Plastics Pub Date : 2022-11-15 DOI: 10.1177/00952443221138915

B. Poyraz, Y. Güner, T. Yardım, R. Yamanoğlu, A. Tozluoğlu, S. Durmuş, M. Şen

引用次数: 0

Effect of hyperelastic pre-stretching on thickness distribution of pressure thermoformed products 超弹性预拉伸对压力热成型产品厚度分布的影响

Journal of Elastomers & Plastics Pub Date : 2022-10-31 DOI: 10.1177/00952443221137358

J. Patil, Yogesh S. Gaikhe, J. Vasavada, S. Mishra

引用次数: 0

Effect of Shea butter as plasticizer on natural rubber-carbon black reinforced composites 乳木果油增塑剂对天然橡胶-炭黑增强复合材料的影响

Journal of Elastomers & Plastics Pub Date : 2022-10-25 DOI: 10.1177/00952443221130477

B. Mensah, Lucas NW Damoah, E. Nyankson, W. Amoabeng

{"title":"Effect of Shea butter as plasticizer on natural rubber-carbon black reinforced composites","authors":"B. Mensah, Lucas NW Damoah, E. Nyankson, W. Amoabeng","doi":"10.1177/00952443221130477","DOIUrl":"https://doi.org/10.1177/00952443221130477","url":null,"abstract":"This paper presents the effect of eco-friendly plasticizer, Shea butter oil (SBO) in rubber compounding involving Carbon black (CB)-filled Natural rubber (NR). The SBO based compounds (SBC) was systematically investigated and the results were compared with compositions prepared with Petroleum-based oil (PO). Although, some of the measured properties were comparable between SBC and POC, however, the SBC generally exhibited better properties compared to the POC. For example, the SBC coded NS5: (NR-50 parts per hundred parts of rubber (phr) CB-5phr SBO) and NS40 (NR-50 phr CB-40 phr SBO) obtained 7 and 17% greater than NT5 (NR-50 phr CB-5phr PO) and NT40 (NR-50 phr CB-40 phr PO), respectively, based on 300 and 100% modulus ratio (M300/M100). In terms of reinforcement measured by bound rubber content, BR (%), NS5 and NS40 recorded higher BR (%) of 9 and 48% than NT5 and NT40, respectively. The NS5 > NT5 by 12 and 7% in terms of crosslinking density and rebound resilience, respectively. Also, the NS5 > NT5 and NS40 > NT40 by 40 and 75%, respectively, in terms of fatigue life behavior. Such enhancement has been linked to successful distribution of the CB particles assisted by SBO within the matrix of NR. While the SBO is economical and has high potential to substitute the PO which is already suspected to be carcinogenic and environmentally unfriendly, SBO has exhibited good plasticizing effect for rubber compounding, especially as curing activators for recipe intended for manufacturing rubber articles.","PeriodicalId":15613,"journal":{"name":"Journal of Elastomers & Plastics","volume":"26 1","pages":"1238 - 1253"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74424419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4