硅烷偶联剂对膨胀型阻燃聚丙烯耐水性、力学性能的影响  

Eff ect of Silane Coupling Agent on the Water Resistance and Mechanical Properties of Expanded Flame Retardant Polypropylene

作　　者：王雨晨 钟志强 龚小弟 Wang Yuchen;Zhong Zhiqiang;Gong Xiaodi(CCTEG Chongqing Research Institute,Chongqing,400037;Chongqing Copolyforce New Material Co.,Ltd.,Chongqing,401332)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]重庆科聚孚新材料有限责任公司,重庆401332

出　　处：《当代化工研究》2025年第1期87-89,共3页Modern Chemical Research

基　　金：天地科技股份有限公司科技创新创业资金专项项目“基于纳米材料自组装微胶囊包覆技术的研究”(项目编号:2023-TDQN012)。

摘　　要：以聚丙烯(Polypropylene,PP)为基体,加入膨胀型无卤阻燃剂FR-1420制备得到了无卤阻燃PP材料,改变硅烷偶联剂的添加量得到了不同的无卤阻燃PP样品,考察了硅烷偶联剂添加量对PP样条阻燃性能与力学性能的影响,结果表明:阻燃剂FR-1420的加入能显著提高PP的阻燃性能,FR-1420质量分数达到10%时,材料3.2 mm样条即可达到UL-94 V-0级;增加阻燃剂质量分数至20%,材料1.6 mm样条可以达到UL-94 V-0级;阻燃剂的疏水接触角由表面包覆前的0°提升到表面包覆后的123.24°,将阻燃PP材料放置在85℃、湿度85%的环境下240 h,未见阻燃剂析出到材料表面,且硅烷偶联剂的表面包覆提升了阻燃剂与PP材料之间的相容性,提高了PP材料的力学性能,且扫描电镜显示,FR-1420经过表面处理后与PP基体相容为一体,未见两者间界面。傅里叶变换红外光谱(FTIR)分析结果表明,FR-1420阻燃剂的表面成功改性接枝了硅烷偶联剂。With polypropylene(PP)as the matrix,the halogen-free flame retardant PP material was obtained by adding the expanded halo-gen-free flame retardant FR-1420,changing the addition amount of the silane coupling agent yielded different halogen-free flame retardant PP sam-ples,the influence of the added amount of silane coupling agent on the flame retardant and mechanical properties of PP spline was investigated.The results show that the addition of flame retardant FR-1420 can significantly improve the flame retardant performance of PP,when the FR-1420 qual-ity score reaches 10%,material 3.2 mm spline can reach UL-94 V-0 level;Increase the mass fraction of flame retardant to 20%,material 1.6 mm spline can reach UL-94 V-0 level;The hydrophobic contact angle of the flame retardant is raised from 0°before surface coating to 123.24°after sur-face coating,place the flame retardant PP material in 85℃and 85%humidity for 240 h,no flame retardant has been precipitated to the surface of the material;And the surface coating of the silane coupling agent enhances the compatibility between the flame retardant and the PP material,im-proving the mechanical properties of the PP materials,and SEM shows,FR-1420 is compatible with the PP matrix,no interface is seen.Fouri-er transform infrared spectroscopy(FTIR)analysis showed that the surface of FR-1420 flame retardant was successfully modified to graft the silane coupling agent.

关 键 词：膨胀型无卤阻燃剂 硅烷偶联剂 聚丙烯 表面包覆 

分 类 号：O631.3[理学—高分子化学]