芳纶纤维对EPDM基阻燃材料性能的影响  

Effect of aramid fibers on properties of EPDM-based flame retardant composites

作　　者：鹿寒冰 刘鸣 阮成煜 黄华栋[2] 袁大有 王鹤[1,4] LU Hanbing;LIU Ming;RUAN Chengyu;HUANG Huadong;YUAN Dayou;WANG He(College of Polymer Science and Engineering/Key Laboratory of Rubber and Plastic Materials and Engineering,Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China;Suzhou Vocational Institute of Industrial Technology,Suzhou 215104,China;Suzhou Jianrui Electronic Machinery Co.,Ltd.,Suzhou 215000,China;Gansu Luqiao Shanjian Technology Co.,Ltd.,Lanzhou 730000,China)

机构地区：[1]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 [2]苏州工业职业技术学院,江苏苏州215104 [3]苏州健睿电子机械有限公司,江苏苏州215000 [4]甘肃路桥善建科技有限公司,甘肃兰州730000

出　　处：《弹性体》2024年第2期44-50,共7页China Elastomerics

基　　金：山东省自然科学基金项目(ZR2020QE073);江苏高校青蓝工程项目(2020);甘肃省科技型中小企业技术创新基金项目(22CX3GA011);甘肃路桥建设集团科技项目(2022-16)。

摘　　要：选用三元乙丙橡胶(EPDM)为基体,考察芳纶纤维(AF)用量以及磷酸、γ-氨丙基三乙氧基硅烷(KH550)改性芳纶纤维(AF-P-Si)对EPDM基复合材料性能的影响。结果表明,当AF用量为1~5份(质量份,下同)时,EPDM混炼胶焦烧时间变化不大;超过3份时,硫化程度增加。随着AF用量增加,硫化胶的拉伸强度、拉断伸长率降低,硬度、撕裂强度、耐磨性和热氧老化性能逐渐提高,尤其3份和5份AF补强的EPDM硫化胶的100%定伸应力明显提高。改性后AF-P-Si的添加有利于提高硬度、拉伸强度、断裂伸长率和撕裂强度。锥型量热仪数据表明,3份和5份AF添加的EPDM硫化胶表现出较高的火灾行为指数(FPI),而AF-P-Si则表现出更佳的阻燃效果。Using ethylene-propylene diene monomer(EPDM)as the matrix,the influence of the dosage of aramid fiber(AF)and phosphoric acid,γ-aminopropyl triethoxylsilane(KH550)modified aramid fiber(AF-P-Si)on the properties of EPDM matrix composite was investigated.The results show that when the amount of AF is 1~5 phr,the scorch time of EPDM compounds does not change much;when the amount of AF exceeds 3 phr,the curing extent increases.With the increase of AF content,the tensile strength and elongation at break of EPDM vulcanizates decrease,while the hardness,tear strength,abrasion resistance and thermal oxygen aging performance gradually increase.Especially when the AF content is 3 or 5phr,the modulus at 100%elongation of EPDM composites improves significantly.For AF-P-Si,it is beneficial to improve the hardness,tensile strength,elongation at break and tear strength of the EPDM composite.According to cone calorimeter results,the EPDM vulcanizates filled with 3~5phr AF obtain high fire performance index(FPI),while modified AF reflects a better flame retardant effect.

关 键 词：三元乙丙橡胶 芳纶纤维 阻燃性能 耐磨性能 

分 类 号：TQ333.4[化学工程—橡胶工业]