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金红石型纳米TiO_2对CaSO4晶须/PP-R树脂复合材料性能的影响

Study on the influence of rutile nano-TiO_2 on performance of CaSO_4 whisker/PP-R resin composite
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摘要 以金红石型纳米TiO2为添加剂改善了CaSO4晶须/PP-R树脂复合材料的各项性能,并研究了金红石型纳米TiO2对PP-R树脂的力学性能、耐热性能和紫外老化性能的影响。研究结果表明:由于纳米TiO2和CaSO4晶须的协同作用,添加纳米TiO2后可进一步提高CaSO4晶须/PP-R树脂复合材料的力学性能和耐热性能;金红石纳米TiO2的加入可以大幅度提高PP-R树脂的耐紫外老化性能,添加5%纳米TiO2后的CaSO4晶须/PP-R树脂复合材料经紫外辐射72 d后,其拉伸强度仅下降了0.36MPa,冲击强度仅下降了0.36kJ.m-2,熔融温度仅下降了5.4℃;而未添加纳米TiO2的CaSO4晶须/PP-R树脂复合材料的拉伸强度下降了1.96MPa,冲击强度下降了1.47kJ.m-2,熔融温度下降了18.6℃。 The performances of CaSO4 whisker/PP-R resin composites, such as the mechanics performance, heat performance and ultraviolet aging performance, had been improved by adding rutile nanometer titanium dioxide. The results showed that adding the rutile nano-TiO2 can improve the performances of CaSO4 whisker/PP-R resin composite farther than adding CaSO4 whisker only because of the cooperation of two stuffs. The results also showed the ultraviolet aging performance of CaSO4 whisker/PP-R resin composite adding 5~ can be improved greatly. The rutile nano-TiO2/CaSO4 whisker/PP-R resin composite radiated by UV after 72days, it's tensile strength was 0.36MPa, Intensity of impact was 0. 36KJ· m 2 and it' s softening point was 5.4℃. But the CaSO4 whisker/PP-R resin composite radiated by UV after 72days, it's tensile strength was 1.96MPa, Intensity of impact was 1.46KJ· m 2 and it's softening point cut was 18. 6℃ .
作者 邹敏 王琪琳
出处 《化工新型材料》 CAS CSCD 北大核心 2009年第7期63-65,共3页 New Chemical Materials
基金 四川省重大科技公关项目资助(04GG009-019-02) 攀枝花市科技攻关项目资助(PKF20031226)
关键词 锐钛型纳米TiO2 CaSO4晶须/PP-R树脂复合材料 力学性能 紫外老化性能 rutile nano-TiO2 ,CaSO4 whisker/PP-R resin composite, mechanics performance, ultraviolet aging performance
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