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
吴永惠 1彭鹤松 1邱文福 1邹检生 1叶慧贤2
作者信息
- 1. 江西广源化工有限责任公司,江西 吉安 331500
- 2. 江西广源化工有限责任公司,江西 吉安 331500;井冈山大学 化学化工学院,江西 吉安 343009;南昌大学 化学化工学院,江西 南昌 330031
- 折叠
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.
Abstract
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Key words
ground calcium carbonate/PVC calendering film/heat resistance/covering power引用本文复制引用
出版年
2024
NETL
NSTL
万方数据