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聚甲醛/低密度聚乙烯接枝纳米二氧化硅复合材料的研究
引用本文:宋芳,姜立忠,苏瞧忠. 聚甲醛/低密度聚乙烯接枝纳米二氧化硅复合材料的研究[J]. 工程塑料应用, 2012, 40(6): 32-35
作者姓名:宋芳  姜立忠  苏瞧忠
作者单位:1. 天津市口腔医院,天津,300041
2. 中国化工集团公司,北京,101318
3. 湖南省平江县职业技术学校,平江,414500
摘    要:通过熔融接枝及熔融共混法制备了聚甲醛/低密度聚乙烯接枝纳米二氧化硅(POM/PE-LD-g-SiO2)复合材料,并对复合材料的力学、热和摩擦磨损性能进行研究。结果表明,PE-LD-g-SiO2的加入对POM基体具有良好的增强增韧作用,且随着PE-LD-g-SiO2含量的增加复合材料的力学和热性能均呈现先增大后降低的趋势。当PE-LD-g-SiO2的质量分数为4%时,复合材料的力学和热性能均达到最大值;而摩擦系数和体积磨损量逐渐降低,当PE-LD-g-SiO2的质量分数为6%时,达到最小值。

关 键 词:聚甲醛  二氧化硅  低密度聚乙烯

Study on Polyoxymethylene/PE-LD Melt Grafted Silica Nanoparticle Composite
Song Fang , Jiang Lizhong , Su Qiaozhong. Study on Polyoxymethylene/PE-LD Melt Grafted Silica Nanoparticle Composite[J]. Engineering Plastics Application, 2012, 40(6): 32-35
Authors:Song Fang    Jiang Lizhong    Su Qiaozhong
Affiliation:1.Tianjin Stomatological Hospital,Tianjin 300041,China;2.China National Chemical Corporation,Beijing 101318,China;3.The Pingjiang Hunan Votech School,Pingjiang 414500,China)
Abstract:Polyoxymethylene(POM)/low density polyethylene garfted nano-SiO2(PE-LD-g-SiO2) composites were successfully prepared with melt-grafting and melt-blending.Mechanical,thermal and friction/wear properties of the composites were studied.The results demonstrated that the strength and toughness of the composites were improved by the induction of PE-LD-g-SiO2.The mechanical and thermal properties of the composites increased first and then decreased with the content of PE-LD-g-SiO2increasing and these reached a maximum when the mass fraction of PE-LD-g-SiO2 was 4%.The frication/wear properties of the composites decreased with the content of PE-LD-g-SiO2 increasing while the coefficient of friction and the volume of wear reach a minimum when the mass fraction of PE-LD-g-SiO2was 6%.
Keywords:polyoxymethylene  silica  low density polyethylene
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