硅藻土在聚烯烃色母粒中的应用研究
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摘要
将硅藻土与有机蓝颜料在双辊开炼机上直接混合制成色母粒,并对聚烯烃进行着色。利用加硫成型试验机制备色板和薄膜,利用测色仪测定色板的反射率、L*、a*、b*值、着色力以及色差,通过光学电子显微镜观察了薄膜中颜料粒子的分散情况,研究硅藻土对色母粒着色性能、分散性能及耐热性能的影响。结果表明,硅藻土可替代部分有机蓝颜料,当替代质量分数为5%~25%时,制成的色母粒能够提高塑料制品的着色性能。此外,当硅藻土替代有机蓝颜料比例为25%时,颜料的着色性能最佳,着色聚烯烃制品的耐热温度提高10℃左右。
The polyolefine color masterbatch was prepared by mixing diatomaceous earth and the blue pigment directly with double-roller blending roll,and then the color masterbatch was added into the resin to prepare blue polyolefine resin. They were tableted swatches and films under the flat panel vulcanization mechanism. The influence of diatomaceous earth on the color properties and dispersing property as well as heat resistance was studied through reflectivity of the swatches, the value of L*,a*,b*,ΔE and tinting strength measured by color photometer and the dispersion of pigment particles in films observed by optical microscope. The results show that the diatomaceous earth can replace partial pigment and the color properties of plastics are improved when the substitute proportion of diatomaceous earth is from 5wt% to 25wt%. Moreover,when the proportion is 25wt%, the color properties are best and the heat resistance temperature of colored plastics is increased about 10℃.
The polyolefine color masterbatch was prepared by mixing diatomaceous earth and the blue pigment directly with double-roller blending roll,and then the color masterbatch was added into the resin to prepare blue polyolefine resin. They were tableted swatches and films under the flat panel vulcanization mechanism. The influence of diatomaceous earth on the color properties and dispersing property as well as heat resistance was studied through reflectivity of the swatches, the value of L*,a*,b*,ΔE and tinting strength measured by color photometer and the dispersion of pigment particles in films observed by optical microscope. The results show that the diatomaceous earth can replace partial pigment and the color properties of plastics are improved when the substitute proportion of diatomaceous earth is from 5wt% to 25wt%. Moreover,when the proportion is 25wt%, the color properties are best and the heat resistance temperature of colored plastics is increased about 10℃.
引文
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[2]郑水林,孙志明,胡志波,等.中国硅藻土资源及加工利用现状与发展趋势[J].地学前缘,2014,21(5):274–280.Zheng Shuilin,Sun Zhiming,Hu Zhibo,et al.The processing and utilization of China diatomite resource and its development trend[J].Earth Science Frontiers,2014,21(5):274–280.
[3]胡舒龙,吕建,卢凤英,等.硅藻土/不饱和聚酯复合材料的性能研究[J].塑料科技,2014,41(11):42–45.Hu Shulong,Lv Jian,Lu Fengying,et al.Study on property of diatomite/unsaturated polyester composite[J].Plastics Science Technology,2014,41(11):42–45.
[4]吴立峰,陈德标,陈信华.色母粒应用技术问答[M].北京:化工工业出版社,2000.Wu Lifeng,Chen Debiao,Chen Xinhua.Question and answer of masterbatch application technology[M].Beijing:Chemical Industry Press,2000.
[5]王三昭,丁筠,王孝明,等.凹凸棒土在聚烯烃红色母粒中的应用[J].塑料,2011,40(6):68–70.Wang Sanzhao,Ding Yun,Wang Xiaoming,et al.Application of attapulgite on the red polyolefin masterbatch[J].Plastics,2011,40(6):68–70.
[6]林光强,冯炎聪,王三昭,等.高熔体指数LDPE对色母粒流变性能影响[J].塑料,2011,40(5):38–40,101.Lin Guangqiang,Feng Yancong,Wang Sanzhao,et al.Effect of LDPE with high MI on the rheological properties of color masterbatch[J].Plastics,2011,40(5):38–40,101.
[7]林光强,冯炎聪,王三昭,等.水磨法超细Ba SO4在聚烯烃色母粒中的应用[J].中国塑料,2011,25(3):80–84.Lin Guangqiang,Feng Yancong,Wang Sanzhao,et al.Application of water mill superfine-Ba SO4 in polyolefin color masterbatch[J].China Plastics,2011,25(3):80–84.
[8]程晓静,乔辉,吴立峰,等.不同熔指的LDPE共混体系在色母粒中的应用[J].塑料,2011,40(3):36–38.Cheng Xiaojing,Qiao Hui,Wu Lifeng,et al.The application of LDPE blends with different melt index in the color masterbatch[J].Plastics,2011,40(3):36–38.
[9]吴立峰,乔辉.塑料着色和色母粒实用手册[M].2版.北京:化工工业出版社,2010.Wu Lifeng,Qiao Hui.Practical handbook for coloring plastics and masterbatch[M].2nd edition.Beijing:Chemical Industry Press,2010.
[10]吴立峰,乔辉.颜料在塑料着色中的应用与测试[M].北京:化工工业出版社,2005.Wu Lifeng,Qiao Hui.Application and testing of pigments for coloring plastics[M].Beijing:Chemical Industry Press,2005.