摘要
采用实验室自制的密炼机制备了聚丙烯(PP)/聚碳酸酯(PC)共混材料,通过形貌分析、流变测试、拉伸试验、缺口冲击强度测试、光学测试等对复合材料的微观形貌、流变性能、力学性能和光学性能进行了表征,并研究了2-(2’-羟基-5’-甲基苯基)苯并三唑(UV-P)填充PP/PC复合材料的抗紫外性能。结果表明,在透光性和雾度的耦合性能方面,PC相含量存在一个阈值;在抗紫外性能方面,UV-P的添加量存在一个阈值。当PC含量为3%(质量分数,下同)时,所制备的共混物的拉伸强度为30.40 MPa,抗冲击强度在44.85 J/m;在添加0.1份UV-P之后,紫外光区域的平均透过率为1.04%,此时的透光率为83.39%,雾度为93.65%,制备的复合材料具有良好的散射效果,且对紫外光线有强烈的吸收作用。
In this paper,PP/PC blends were prepared by using a laboratory⁃made internal mixer,and their microstruc⁃ture,rheological properties,mechanical properties,and optical properties were characterized by topography analysis,rheological test,tensile test,notch impact strength test,and optical test.The UV shielding effect of UV⁃P filled PP/PC compounds was studied.The results indicated that there was a threshold of dispersed phase content in the coupling per⁃formance of light transmittance and haze.There was a threshold for the addition amount of UV⁃P according to the UV shielding effect.The tensile and impact strength of the as⁃prepared blends reached 30.40 MPa and 44.85 J/m,respec⁃tive,at a PC content of 3 wt%.When 0.1 phr UV⁃P was incorporated,the blends presented an average transmittivity of 1.04%in the UV region,a transmittance of 83.39%,and a haze of 93.65%.The blends developed in this work ex⁃hibited a good scattering effect and strong absorption of ultraviolet light.
作者
王文惠
朱惠豪
李果
王玉
武凡
林镇斌
马玉录
谢林生
WANG Wenhui;ZHU Huihao;LI Guo;WANG Yu;WU Fan;LIN Zhenbin;MA Yulu;XIE Linsheng(Engineering Center of Efficient Green Process Equipment and Energy Conservation of Ministry of Education,East China University of Technology,Shanghai 200237,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2023年第8期8-12,共5页
China Plastics
关键词
光扩散材料
聚丙烯
聚碳酸酯
抗紫外
light diffusing material
polypropylene
polycarbonate
ultraviolet shielding effect
作者简介
通信作者:谢林生(1963-),男,教授,从事橡塑成型加工及机械等研究,lsxie@ecust.edu.cn。
