高透光高韧性聚丙烯共混物的制备及其影响因素研究  

Study on the Preparation and Influence Factors of Highly Transparent and High Toughness Polypropylene Blends

作　　者：秦炜 李丹 孙刚 QIN Wei;LI Dan;SUN Gang(Shanghai Kingfa Sci.&Tech.Co.,Ltd.,Shanghai 201714,China;Jiangsu Kingfa Sci.&Tech.Advanced Material Co.,Ltd.,Kunshan 215333,Jiangsu,China;Saic Volkswagen Automotive CO.,LTD.,Shanghai 201805,China)

机构地区：[1]上海金发科技发展有限公司,上海201714 [2]江苏金发科技新材料有限公司,江苏昆山215333 [3]上汽大众汽车有限公司,上海201805

出　　处：《合成材料老化与应用》2023年第6期1-4,共4页Synthetic Materials Aging and Application

摘　　要：以均聚聚丙烯(iPP)为基体,研究了成核剂、无规共聚聚丙烯(PPR),乙烯-丁烯共聚物(POE),苯乙烯-乙烯-丁烯嵌段共聚物(SEBS)对iPP光学性能和力学性能的影响。研究结果表明,透明成核剂有利于降低iPP的雾度;PPR可以提高iPP的光学性能,但力学性能下降明显;POE弹性体可以增韧iPP但对光学性能影响大,当添加5%POE时,iPP透光率从75%下降至55%。SEBS弹性体可同时提高iPP的透光率和韧性,添加25%时,简支梁缺口冲击强度可达30 k J/m^(2),同时3mm板透光率为78%。同时,添加PPR可进一步提高SEBS与iPP的相容性,降低光线在聚合物中的散射和折射,实现3mm厚度下80%的透光率。This research was conducted on isotactic polypropylene(iPP)as the base and study the ef fects of nucleating agents,atactic polypropylene(PPR),ethylene-butadiene copolymer(POE),and styrene-ethylene-butadiene-styrene block copolymer(SEBS)on iPP's optical and mechanical properties.The results show that transparent nucleating agents can reduce the haze of iPP;PPR can improve the optical properties of iPP,but the mechanical properties decrease significantly;POE elastomer can toughen iPP but significantly af fects its optical properties,with the transmittance of iPP dropping from 75%to 55%when 5%POE is added.The SEBS elastomer can simultaneously improve the transmittance and toughness of iPP.When 25%SEBS is added,the notched impact strength of the simply supported beam can reach 30 kJ/m^(2),and the transmittance of the 3mm plate is 78%.At the same time,adding PPR can further enhance the compatibility of SEBS and iPP,reduce light scattering and refraction within the polymer,and achieve a light transmittance of 80%at a thickness of 3 mm.

关 键 词：聚丙烯 透光 韧性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]