|本期目录/Table of Contents|

[1]董晓坤,韩 笑,邓 涛?鄢.剪切速率对乙烯-丙烯酸酯橡胶/聚偏氟乙烯热塑性硫化胶性能的影响[J].合成橡胶工业,2022,5:412-415.
　DONG Xiao-kun,HAN Xiao,DENG Tao.Effects of shear rate on properties of ethylene-acrylate rubber/ polyvinylidene fluoride thermoplastic vulcanizates[J].China synthetic rubber industy,2022,5:412-415.
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剪切速率对乙烯-丙烯酸酯橡胶/聚偏氟乙烯热塑性硫化胶性能的影响(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2022年5期
页码:
412-415
栏目:
出版日期:
2022-09-15

文章信息/Info

Title:
Effects of shear rate on properties of ethylene-acrylate rubber/ polyvinylidene fluoride thermoplastic vulcanizates
文章编号:
1000-1255（2022）05-0412-04
作者:
董晓坤; 韩 笑; 邓 涛?鄢
青岛科技大学 高分子科学与工程学院/橡塑材料与工程教育部重点实验室， 山东 青岛 266042
Author(s):
DONG Xiao-kun;  HAN Xiao;  DENG Tao
College of Polymer Science and Engineering, Qingdao University of Science and Technology / Key Laboratory of Rubber-Plastic Materials and Engineering of Ministry of Education, Qingdao 266042, China
关键词:
乙烯-丙烯酸酯橡胶; 聚偏氟乙烯; 热塑性硫化胶; 剪切速率; 动态硫化; 微观相态结构; 物理机械性能
Keywords:
ethylene-acrylate rubber;  polyvinylidene fluoride;  thermoplastic vulcanizate;  shear rate;  dynamic vulcanization;  microphase structure;  physical and mechanical property
分类号:
TQ 333.97
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2022.05.0412
文献标识码:
B
摘要:
采用动态硫化法制备了乙烯-丙烯酸酯橡胶（AEM）/聚偏氟乙烯（PVDF）热塑性硫化胶（TPV），考察了动态硫化过程中转子剪切速率对TPV微观相态结构及性能的影响。结果表明，动态硫化过程中转子的剪切速率越快，AEM和PVDF更易发生相转变，微观相态结构更加精细，形成具有“海-岛”结构的TPV。随转子的剪切速率加快，TPV的拉伸强度和扯断伸长率均先增大后减少。当剪切速率为75 r/min时，AEM/PVDF TPV具有较好的力学性能，拉伸强度达到14.84 MPa，扯断伸长率为246%，TPV具有更加优异的耐热油和热空气老化性能。
Abstract:
Ethylene-acrylate rubber (AEM)/polyvinylidene fluoride (PVDF) thermoplastic vulcanizate (TPV) was prepared by dynamic vulcanization, and the effects of rotor shear rate during dynamic vulcanization on the microphase structure and properties of TPV were investigated. The results showed that the higher the shear rate of the rotor during the dynamic vulcanization process, the more likely the phase inversion of AEM and PVDF occured, and the microscopic phase structure was more refined, forming a TPV with a “sea-island” structure. With the increase of shear rate of rotor, the tensile strength and elongation at break of TPV increased first and then decreased. When the share rate was 75 r/min, AEM/PVDF TPV had better mechanical properties, the tensile strength reached 14.84 MPa, and the elongation at break was 246%. TPV had better hot oil and hot air resistance.

参考文献/References

［1］ 佘庆彦, 田洪池, 韩吉彬,等. 热塑性弹性体的研究与产业化进展［J］. 中国材料进展, 2012, 31（2）：9-11.［2］ 刘聪,方跃胜,丁剑平,等. 动态硫化热塑性硫化胶研究进展［J］. 橡胶工业,2018, 65（10）：185-191.［3］ Bhattacharya A B, Aswathy T R, Chatterjee T, et al. Development and characterizations of ultra-high molecular weight EPDM/PP based TPV nanocomposites for automotive applications［J］. Polymer Composites, 2020, 41（12）：4950-4962.［4］ 陈尔凡，韩云凤，邓雯雯，等. 动态硫化热塑性弹性体的研究进展［J］. 高分子材料科学与工程，2011，27（3）：171-174.［5］ 王诗凝. PP/POE/MVQ三元共混热塑性弹性体的制备及其性能研究［D］. 青岛：青岛科技大学, 2016.［6］ Tian Hongchi，Tian Ming, Zou Hua, et al. Special electrical conductivity of carbon black‐filled two‐phased thermoplastic vulcanizates［J］. Journal of Applied Polymer Science, 2010, 117（2）：691-699. ［7］ Liu Tianyu, Huang Rui, Qi Xiaodong, et al. Facile preparation of rapidly electro-active shape memory thermoplastic polyurethane/polylactide blends via phase morphology control and incorporation of conductive fillers［J］. Polymer, 2017, 114（7）：28-35.［8］ Tang Qi, Du Miao, Cui Yongyin, et al. Thermoelectric properties of multi-walled carbon nanotube/thermoplastic vulcanizate composite prepared by dynamic vulcanization［J］. 合成橡胶工业, 2020, 43（6）：508.［9］ 王世茹. 三元乙丙橡胶/高密度聚乙烯热塑性弹性体的制备及性能研究［D］. 广州：华南理工大学,2020.［10］ Li Shangqing , Tian Hongchi , Hu Guohua , et al. Effects of shear during injection molding on the anisotropic microstructure and properties of EPDM/PP TPV containing rubber nanoparticle agglomerates［J］. Polymer, 2021, 229（3）：124-128.

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更新日期/Last Update: 2022-09-15