PPR-BF复合管材的制备与研究  

Preparation and Properties of Basalt Fiber Reinforced Polypropylene Pipe

作　　者：吕爱龙 王松钊 秦小梅 LV Ai-long;WANG Song-zhao;QIN Xiao-mei(Rifeng Enterprise Group Co.,Ltd.,Guangdong Province Key Laboratory of Functionalized Plastic Composite Pipeline Systems,Foshan 528000,Guangdong,China)

机构地区：[1]日丰企业集团有限公司,广东省功能化塑料复合管道系统企业重点实验室,广东佛山528000

出　　处：《合成材料老化与应用》2023年第6期16-18,共3页Synthetic Materials Aging and Application

摘　　要：采用双螺杆挤出技术制备了玄武岩纤维增强聚丙烯改性料,并通过管材成型工艺制备了PPR/PPR-BF/PPR三层复合管,并对改性料和管材的性能进行了研究。结果显示,当BF的添加量在25%时,线膨胀系数低至3.7×10^(-5)m/m·℃。同时,管材的线膨胀系数为4.8×10^(-5)m/m·℃,说明玄武岩纤维改性PPR管材可以解决PPR管材在长期热水供应过程中的尺寸变形问题。In this paper,the basalt fiber reinforced polypropylene modified materials were prepared by twin-screw extrusion technology,and the three-layer composite pipes PPR/PPR-BF/PPR were prepared by pipe forming equipment.The properties of the modified material and pipes were studied.The results show that when the amount of BF added is 25%,the linear expansion coefficient is as low as 3.7×10^(-5)m/m·℃.Meanwhile,the linear expansion coefficient of the pipe is 4.8×10^(-5)m/m·℃,indicating that basalt fiber modified PPR pipes can solve the problem of dimensional deformation of PPR pipes during long-term hot water supply.

关 键 词：PP-R 玄武岩纤维 塑料管材 线膨胀系数 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]