PREPARATION OF MDPE-g-MAH COPOLYMERS AND THEIR EFFECT ON PROPERTIES OF MDPE/CaCO_3 SYSTEMS  

作　　者：Guo-dong Zhao Xiao-bo Liu Guang-nan Qiu Jian-ming Xu Shi-ping Xie Xian-feng Liu Jian-song Yang Lan-hang Xu 

机构地区：[1]Changyuan Electronics Co., Ltd. [2]Changyuan Group Co., Ltd.

出　　处：《Chinese Journal of Polymer Science》2013年第9期1271-1275,共5页高分子科学（英文版）

摘　　要：MDPE-g-MAH copolymers were prepared with MDPE （medium density polyethylene） and MAH （maleic anhydride） under different irradiation doses of high-energy electron accelerator, and FTIR spectra confirmed their structure. The effect of the different contents of MDPE-g-MAH copolymers on properties of MDPE/CaCO3 system is studied intensively. By adding 4 Phr （parts per hundred of resin） MDPE-g-MAH in MDPE/CaCO3 system under irradiation dose of 0.7 MGy, the tensile strength increases from 16.3 MPa to 19.9 MPa, and elongation at break increases from 437% to 518%. SEM images show the domain size of CaCO3 in MDPE-g-MAH systems becomes small. Definitely, MDPE-g-MAH copolymer could improve the compatibility of MDPE/CaCO3 system effectively.MDPE-g-MAH copolymers were prepared with MDPE （medium density polyethylene） and MAH （maleic anhydride） under different irradiation doses of high-energy electron accelerator, and FTIR spectra confirmed their structure. The effect of the different contents of MDPE-g-MAH copolymers on properties of MDPE/CaCO3 system is studied intensively. By adding 4 Phr （parts per hundred of resin） MDPE-g-MAH in MDPE/CaCO3 system under irradiation dose of 0.7 MGy, the tensile strength increases from 16.3 MPa to 19.9 MPa, and elongation at break increases from 437% to 518%. SEM images show the domain size of CaCO3 in MDPE-g-MAH systems becomes small. Definitely, MDPE-g-MAH copolymer could improve the compatibility of MDPE/CaCO3 system effectively.

关 键 词：MDPE-g-MAH copolymer MDPE CaCO3  Irradiation modification Compatibility. 

分 类 号：O631.3[理学—高分子化学]