碳酸钙含量对PBAT物理性能的影响  

Effect of Calcium Carbonate Content on Physical Properties of PBAT

作　　者：冯潮 潘加豪 李娜 李宗男 马立波[1] 熊煦[1] 杨小林[1] 陈飞虎 Feng Chao;Pan Jiahao;Li Na;Li Zongnan;Ma Libo;Xiong Xu;Yang Xiaolin;Chen Feihu(Changzhou Vocational Institute of Engineering Technology,Changzhou 213164;Shanghai Kumhosunny Plastics Co.,Ltd.,Shanghai 201107,China)

机构地区：[1]常州工程职业技术学院,江苏常州213164 [2]上海锦湖日丽塑料有限公司,上海201107

出　　处：《广东化工》2022年第2期33-35,58,共4页Guangdong Chemical Industry

基　　金：常州工程职业技术学院“高分子材料专业卓越人才培养”、“现代学徒制背景下高分子材料加工技术专业人才培养方案探索”、“高分子材料加工技术专业校企协同育人现代学徒制”项目。

摘　　要：本文通过双螺杆挤出机将碳酸钙母粒与PBAT熔融共混制成均相材料,研究了不同碳酸钙含量对PBAT机械、物理性能的影响。结果表明:随着碳酸钙含量的增加,PBAT的断裂伸长率、拉伸强度整体呈下降趋势,当碳酸钙母粒含量为40%时,PBAT断裂伸长率降低了59.68%,拉伸强度降低了56.19%;冲击强度随碳酸钙含量的增加呈现上升趋势,当碳酸钙母粒含量40%时,PBAT冲击强度升高了46.52%;碳酸钙含量的增加对PBAT的维卡软化温度影响不大;PBAT的密度随着碳酸钙含量的增加而增大,当碳酸钙母粒含量为40%时,密度为1.44 g/cm^(3),升高了19%。Calcium carbonate masterbatch and PBAT was melt blended into homogeneous materials by twin-screw extruder. The effects of different calcium carbonate content on the mechanical and physical properties of PBAT were studied. The results showed that the elongation at break and tensile strength of PBAT decreased with the increase of calcium carbonate content. When the content of calcium carbonate masterbatch was 40 %, the elongation at break and tensile strength of PBAT decreased by 59.68 % and 56.19 %. The impact strength increased with the increase of calcium carbonate content. When the content of calcium carbonate masterbatch was 40 %, the impact strength of PBAT increased by 46.52 %. The increase of calcium carbonate content has little effect on the Vicat softening temperature of PBAT. The density of PBAT increased with the increase of calcium carbonate content. When the content of calcium carbonate masterbatch was 40 %,the density was 1.44 g/cm^(3), an increase of 19 %.

关 键 词：PBAT 碳酸钙 母粒 拉伸强度 物理性能 

分 类 号：TQ[化学工程]