不同细度重质碳酸钙在PVC压延膜中的应用研究  

Application of Ground Calcium Carbonate with Different Fineness in PVC Calendering Film

作　　者：吴永惠 彭鹤松 邱文福 邹检生 叶慧贤 Wu Yonghui;Peng Hesong;Qiu Wenfu;Zou Jiansheng;Ye Huixian(Jiangxi Guangyuan Chemical Co.,Ltd.,Ji′an 331500,China;School of Chemistry and Chemical Engineering,Jinggangshan University,Ji′an 343009,China;College of Chemistry and Chemical Engineering,Nanchang University,Nanchang 330031,China)

机构地区：[1]江西广源化工有限责任公司,江西吉安331500 [2]井冈山大学化学化工学院,江西吉安343009 [3]南昌大学化学化工学院,江西南昌330031

出　　处：《山东化工》2024年第3期49-52,共4页Shandong Chemical Industry

摘　　要：分析了两种矿种制备出的不同细度重质碳酸钙(南召1号~8号和连州1号~5号)的性能指标,研究了这些不同细度重质碳酸钙粉体应用于PVC压延膜对其白度、拉伸强度、耐热性能与遮盖性能的影响。研究结果发现:从南召1号到8号,粉体的粒径在逐渐变小,粒径分布逐渐变窄,白度和吸油值均在逐渐增加;连州1号到5号粉体具有类似的变化规律。南召1号至8号粉体随着粉体白度和细度的提升,其应用于PVC压延膜的白度、拉伸强度、耐热性和遮盖力性能都在明显提升,其中,5号以上的产品填充PVC压延膜可以获得较好的综合性能,7号具有最佳的综合性能。连州1号至5号填充PVC压延膜,白度变化不大,拉伸强度增大,耐热性能和遮盖性能逐渐变好,其中,3号以上的产品均可获得较好的综合性能,5号具有最佳的综合性能。The properties of different fineness of ground calcium carbonate(Nanzhao No.1~8 and Lianzhou No.1~5)from two types of minerals were analyzed,the effects of these different fineness of ground calcium carbonate on the whiteness,tensile strength,heat resistance and covering power of PVC calendering films were studied.The results showed that from Nanzhao No.1 to No.8,the particle size became smaller,the particle size distribution became narrower,the whiteness and oil absorption value increased.The powders from Lianzhou No.1 to No.5 had a similar change in these properties.The whiteness,tensile strength,heat resistance and covering power of PVC calendering films prepared with Nanzhao No.1 to No.8 powders were obviously improved with the increase of the whiteness and fineness of the powder.Among them,PVC calendering film filled with products above No.5 could obtain better overall performance,and Nanzhao No.7 had the best overall performance.PVC calendering films filled with Lianzhou No.1 to No.5 showed little change in whiteness,increased in tensile strength,and the heat resistance and covering power of them were gradually improved.Among them,the products above No.3 could obtain better comprehensive performance,and Lianzhou No.5 had the best comprehensive performance.

关 键 词：重质碳酸钙 PVC压延膜 耐热性 遮盖力 

分 类 号：TQ132.3[化学工程—无机化工]