纳米碳酸钙填充型粉末丁苯橡胶增韧改性聚氯乙烯
Nano-CaCO3 Filled Powder Styrene-Butadiene Rubber Used as Toughening Modifier for Polyvinyl Chloride
摘 要
将纳米碳酸钙填充型粉末丁苯橡胶作为复合改性剂用于聚氯乙烯(PVC)的增韧改性, 研究了复合改性剂中纳米碳酸钙含量和复合改性剂加入量对PVC力学性能的影响, 并分析了其冲击断口形貌。结果表明: 复合改性剂能大幅度提高PVC的缺口冲击强度; 当复合改性剂与PVC的质量比为15∶100, 复合改性剂中纳米碳酸钙质量分数为70%时, PVC的缺口冲击强度达到最大值22.9 kJ·m-2, 缺口冲击试样断口呈典型的韧性断面形貌。
填充型粉末丁苯橡胶
聚氯乙烯
增韧
nano-CaCO3
filled powder styrene-butadiene rubber
polyvinyl chloride (PVC)
toughening
Abstract
Nano-CaCO3 filled powder styrene-butadiene rubber was used to toughen polyvinyl chloride (PVC), the effect of the nano-CaCO3 content in compound modifier and the addition of the compound modifier on the mechanical properties of PVC was studied, and the impact fracture morphology was analyzed. The results show that the compound modifier could dramatically increase the notched impact strength of PVC. The maximum notched impact strength was 22.9 kJ·m-2 when the mass ratio of compound modifier to PVC was 15∶100 and the mass fraction of nano-CaCO3 in compound modifier was 70%, and a typical flexible fracture morphology was found on the fracture of the notched impact sample.
中图分类号 TQ325.3
所属栏目 纳米材料
基金项目
收稿日期 2011/4/26
修改稿日期 2011/12/31
网络出版日期
作者单位点击查看
备注张周达(1987-), 男, 浙江宁波人, 硕士研究生。
引用该论文: ZHANG Zhou-da,CHEN Xue-mei. Nano-CaCO3 Filled Powder Styrene-Butadiene Rubber Used as Toughening Modifier for Polyvinyl Chloride[J]. Materials for mechancial engineering, 2012, 36(5): 76～79
张周达,陈雪梅. 纳米碳酸钙填充型粉末丁苯橡胶增韧改性聚氯乙烯[J]. 机械工程材料, 2012, 36(5): 76～79
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参考文献
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【2】康永.PVC纳米复合材料增强和增韧研究进展[J].国外塑料, 2010, 28(10): 36-39.
【3】朱德钦, 生瑜, 张丽珍.PVC/CPE/P(BA-co-MMA)改性CaCO3复合体系的性能研究[J].福建师范大学学报: 自然科学版, 2009, 25(1): 68-72.
【4】XIONG Y, CHEN G S, GUO S Y. The preparation of core-shell CaCO3 particles and its effect on mechanical property of PVC composites[J].Journal of Applied Polymer Science, 2006, 102(2): 1084-1091.
【5】ZHANG L, LI C Z, HUANG R. Toughness mechanism in polypropylene composites: polypropylene toughened with elastomer and calcium carbonate[J].Journal of Polymer Science B, 2004, 42(9): 1656-1662.
【6】WU D Z, WANG X D, SONG Y Z, et al. Nanocomposites of poly(vinyl chloride) and nanometric calcium carbonate particles: effects of chlorinated polyethylene on mechanical properties, morphology, and rheology[J].Journal of Applied Polymer Science, 2004, 92(4): 2714-2723.
【7】林雅铃, 张安强, 王炼石.填充型橡胶的研究进展[J].橡胶科技市场, 2008, 16(4): 18-21.
【8】屈国梁, 陈雪梅, 马新胜.纳米碳酸钙对填充型粉末丁苯橡胶硫化胶力学性能的影响[J].机械工程材料, 2011, 35(1): 79-82.
【9】黄国波, 童筱莉, 邬润德.超细碳酸钙/粉末丁苯橡胶的制备及在PVC中的应用[J].浙江化工, 2006, 37(9): 7-9.
【10】王庆国.超细全硫化粉末橡胶及其纳米无机填料复合体系对硬质聚氯乙烯的改性研究[D].北京: 北京化工大学, 2006.
【11】陈雪梅, 屈国梁, 吴秋芳, 等.纳米碳酸钙与丁苯橡胶组合物及其制备方法: 中国, 102020794[P].2009-09-15.
【12】苏新清.丁苯橡胶/nano-CaCO3复合粉末橡胶增韧增强聚丙烯的研究[D].北京: 北京化工大学, 2004.
【13】WU S H. Phase structure and adhesion in polymer blends: a criterion for rubber toughening[J].Polymer, 1985, 26(12): 1855-1863.
【14】WU S H. A generalized criterion for rubber toughening: the critical matrix ligament thickness[J].Journal of Applied Polymer Science, 1988, 35(2), 549-561.
【15】KEMAL I, WHITTLE A. Toughening of unmodified polyvinylchloride through the addition of nanoparticulate calcium carbonate[J].Polymer, 2009, 50(16): 4066-4079.
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