PP/PA6/TiO_2复合材料的制备及其性能的研究
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摘要
采用PA6、TiO_2对PP进行共混改性,拟在提高PP复合材料冲击强度的同时使材料具有抗老化的性能。使用POE-g-MAH作为反应相容剂,通过熔融共混分别制备了PP/TiO_2、PP/PA6/TiO_2、PP/PA6/POE-g-MAH/TiO_2、PP/PA6/PP-g-MAH/TiO_2复合材料。论文研究了用钛酸酯偶联剂对TiO_2进行表面处理;PA6和POE-g-MAH/TiO_2的含量;相容剂的选择及其用量;POE-g-MAH/TiO_2的不同配比和不同的共混次序对PP复合材料性能的影响。
研究发现:经钛酸酯偶联剂表面处理后的TiO_2较表面未处理的TiO_2更能改善PP的力学性能;使用POE-g-MAH作为PP/PA6/TiO_2复合材料的相容剂能很好的提高复合材料的冲击韧性。不同成分配比,共混次序对PP/PA6/POE-g-MAH/TiO_2复合材料性能影响显著其中采用共混次序为PP/PA6/(POE-g-MAH/TiO_2)制备的复合材料综合性能较佳。
为了进一步的提高PP复合材料抗紫外老化性能,在PP/PA6/(POE-g-MAH/TiO_2)复合材料中添加紫外线吸收剂UV-327,抗氧剂1010和168。制备了PP/PA6/(POE-g-MAH/TiO_2)/UV-327,1010,168复合材料。同时还对PP及其复合材料的湿热老化性能进行了研究。论文还分析讨论了不同的紫外波段(UVA,UVB,UVC)对纯PP力学性能的影响,最后对PP材料紫外老化和湿热老化的机理进行了初步的探讨。
研究结果表明:PP/PA6/(POE-g-MAH/TiO_2)/UV-327,1010,168复合材料的抗紫外老化性能要高于所研究的其它几种复合材料;短波紫外线UVC对纯PP的破坏作用最大;湿热老化对PP/PA6/TiO_2复合材料的性能有一定的影响。
PP was modified with blending PA6,TiO_2 which can endow the composites material with ageing property and improved the material impact strength.PP/TiO_2,PP/PA6/TiO_2, PP/PA6/POE-g-MAH/TiO_2,PP/PA6/PP-g-MAH/TiO_2 composites were prepared by melt blending and used POE-g-MAH as compatibilizer.This paper investigated the property of PP/PA6/TiO_2 composites including titanate coupling agent surface treatment of TiO_2,content of nylon-6 and POE-g-MAH/TiO_2,the selection and content of the compatibilizer,different mixture ratio of POE-g-MAH/TiO_2 and blend sequence on property of PP/PA6/TiO_2 composites were studied.
The research showed that surface treated TiO_2 could improve mechanical properties of pure PP much better than that untreated TiO_2.The compatibilizer of POE-g-MAH could increasd the impact toughness of PP/PA6/TiO_2 composites.The effect of different component match and blend sequenceon had significant effect on characteristics of PP/PA6/TiO_2/POE-g-MAH composites.The property of PP/PA6/TiO_2/POE-g-MAH composites were prepared by blend sequence PP/PA6/(POE-g-MAH/TiO_2) that was better than the others.
In order to enhance the anti-ultraviolet aging propertie of PP,the ultraviolet absorbent UV-327,antioxidant 1010 and 168 were added into the PP/PA6/(POE-g-MAH/TiO_2) composites and prepated the PP/PA6/(POE-g-MAH/TiO_2)/UV-327,1010,168 composites.The effect of hydrothermal was studied aging on pure PP and PP composites.This paper discussed the different ultraviolet bands(UVA,UVB,UVC) which had influence on the mechanical properties of the PP. Finally,the interaction mechanism was discussed of the ultraviolet aging and hydrothermal aging of PP.
Result showed that the anti-ultraviolet aging propertie of PP/PA6/(POE-g-MAH/TiO_2) /UV-327,1010,168 composite was better than the others.Attacking was the most when the PP was irradiated by UVC.Hydrothermal Aging had a little effect on properties of PP/PA6/TiO_2 composites.
研究发现:经钛酸酯偶联剂表面处理后的TiO_2较表面未处理的TiO_2更能改善PP的力学性能;使用POE-g-MAH作为PP/PA6/TiO_2复合材料的相容剂能很好的提高复合材料的冲击韧性。不同成分配比,共混次序对PP/PA6/POE-g-MAH/TiO_2复合材料性能影响显著其中采用共混次序为PP/PA6/(POE-g-MAH/TiO_2)制备的复合材料综合性能较佳。
为了进一步的提高PP复合材料抗紫外老化性能,在PP/PA6/(POE-g-MAH/TiO_2)复合材料中添加紫外线吸收剂UV-327,抗氧剂1010和168。制备了PP/PA6/(POE-g-MAH/TiO_2)/UV-327,1010,168复合材料。同时还对PP及其复合材料的湿热老化性能进行了研究。论文还分析讨论了不同的紫外波段(UVA,UVB,UVC)对纯PP力学性能的影响,最后对PP材料紫外老化和湿热老化的机理进行了初步的探讨。
研究结果表明:PP/PA6/(POE-g-MAH/TiO_2)/UV-327,1010,168复合材料的抗紫外老化性能要高于所研究的其它几种复合材料;短波紫外线UVC对纯PP的破坏作用最大;湿热老化对PP/PA6/TiO_2复合材料的性能有一定的影响。
PP was modified with blending PA6,TiO_2 which can endow the composites material with ageing property and improved the material impact strength.PP/TiO_2,PP/PA6/TiO_2, PP/PA6/POE-g-MAH/TiO_2,PP/PA6/PP-g-MAH/TiO_2 composites were prepared by melt blending and used POE-g-MAH as compatibilizer.This paper investigated the property of PP/PA6/TiO_2 composites including titanate coupling agent surface treatment of TiO_2,content of nylon-6 and POE-g-MAH/TiO_2,the selection and content of the compatibilizer,different mixture ratio of POE-g-MAH/TiO_2 and blend sequence on property of PP/PA6/TiO_2 composites were studied.
The research showed that surface treated TiO_2 could improve mechanical properties of pure PP much better than that untreated TiO_2.The compatibilizer of POE-g-MAH could increasd the impact toughness of PP/PA6/TiO_2 composites.The effect of different component match and blend sequenceon had significant effect on characteristics of PP/PA6/TiO_2/POE-g-MAH composites.The property of PP/PA6/TiO_2/POE-g-MAH composites were prepared by blend sequence PP/PA6/(POE-g-MAH/TiO_2) that was better than the others.
In order to enhance the anti-ultraviolet aging propertie of PP,the ultraviolet absorbent UV-327,antioxidant 1010 and 168 were added into the PP/PA6/(POE-g-MAH/TiO_2) composites and prepated the PP/PA6/(POE-g-MAH/TiO_2)/UV-327,1010,168 composites.The effect of hydrothermal was studied aging on pure PP and PP composites.This paper discussed the different ultraviolet bands(UVA,UVB,UVC) which had influence on the mechanical properties of the PP. Finally,the interaction mechanism was discussed of the ultraviolet aging and hydrothermal aging of PP.
Result showed that the anti-ultraviolet aging propertie of PP/PA6/(POE-g-MAH/TiO_2) /UV-327,1010,168 composite was better than the others.Attacking was the most when the PP was irradiated by UVC.Hydrothermal Aging had a little effect on properties of PP/PA6/TiO_2 composites.
引文
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