比较芳纶短纤维和芳纶浆粕对绝热材料性能的影响  

Comparison of aromatic impact of PPTA short-fiber and PPTA pulp on the properties of thermal insulation material

作　　者：李颖妮[1] 刘海东[1] 邱东[1] 赵晓宾[1] 杨学军[1] 

机构地区：[1]西安航天复合材料研究所,陕西西安710025

出　　处：《应用化工》2014年第11期2056-2059,2064,共5页Applied Chemical Industry

摘　　要：比较了芳纶短纤维粕(PPTA short-fiber)/三元乙丙橡胶(EPDM)和芳纶浆粕(PPTA pulp)/三元乙丙橡胶的分散性、耐烧蚀性能与力学性能。结果表明,芳纶浆粕比芳纶短纤维在EPDM橡胶中有更好的分散性,芳纶浆粕的拉伸强度和扯断伸长率均优于PPTA short-fiber/EPDM,同时可以得到更高的填充量。芳纶浆粕的最优含量为12.0%,PPTA pulp/EPDM橡胶线烧蚀率为0.064 mm/s,拉伸强度为3.0 MPa,扯断伸长率为210%,具有优异的耐烧蚀性能和力学性能,可以代替芳纶短纤维作为高性能绝热材料而广泛应用。Compares PPTA short-fiber/EPDM and PPTA pulp/EPDM rubber dispersion,ablation resist-ance and mechanical properties. The results showed that PPTA pulp than PPTA short-fibre has better dis-persion in EPDM rubber. PPTA pulp/EPDM line ablation rate and the quality of the ablation rate respec-tively better than PPTA short-fiber/EPDM. The optimum content of PPTA pulp is 12. 0%,PPTA pulp/EPDM rubber line ablation rate is 0. 064 mm/s,the tensile strength of 3. 0 MPa,breaking elongation is 210%. PPTA pulp excellent ablation resistance and mechanical properties,can replace PPTA short fibre as a high-performance thermal insulation materials and widely used.

关 键 词：EPDM 芳纶浆粕 芳纶短纤维 线烧蚀率 

分 类 号：TQ333.4[化学工程—橡胶工业] TB33[一般工业技术—材料科学与工程]