中国塑料2026，Vol.40Issue(6)：113-119,7.DOI:10.19491/j.issn.1001-9278.2026.06.019
回收聚丙烯改性及其在建筑模板中的应用研究
Modification of recycled polypropylene and its application in building formwork
摘要
Abstract
A composite nucleating agent(NA-21E)was prepared by physically compounding aluminium hydroxybis[2,2′-methylenebis(4,6-di-tert-butylphenyl)phosphate](NA-21)with erucic acid amide(EAM),and this agent was used to modify recycled polypropylene(rPP).The effects of NA-21(before and after compounding)on the crystallization be-havior,mechanical properties,and flame-retardant performance of rPP were systematically investigated.The results in-dicated that EAM,as a composite component,significantly improve the dispersibility of NA-21 in the rPP matrix.More-over,the as-prepared nitrogen-phosphorus synergistic flame-retardant system remarkably enhances the flame-retardant performance of rPP,increasing its limiting oxygen index by 5.1%.With the improved dispersibility of NA-21,the crys-tallization rate,impact strength,and flexural strength of rPP are significantly enhanced.Its mechanical properties fully meet the mechanical performance standards for ribbed plastic formwork specified in JGT 418-2013,endowing rPP with great application potential in the field of construction plastic formwork.关键词
回收聚丙烯/复配成核剂/结晶性能/力学性能/阻燃性能/建筑用塑料模板Key words
recycled polypropylene/composite nucleating agent/crystallization property/mechanical property/flame retardant property/plastic templates for construction分类
化学化工引用本文复制引用
张瑞友,桑润辉,武焕焕..回收聚丙烯改性及其在建筑模板中的应用研究[J].中国塑料,2026,40(6):113-119,7.基金项目
广西高校中青年教师科研基础能力提升项目(2025KY1418) （2025KY1418）
