为了延长暴露于大气环境下聚酯纤维材料的使用周期,研究紫外辐射对聚酯纤维材料结构影响,以填充消光剂、纳米紫外线屏蔽剂等方法来合成聚酯复合纤维材料.通过差示扫描量热仪(DSC)、动态热机械分析仪(DMA)以及分子量测定研究了不同紫外辐射周期对聚酯纤维分子量、机械性质、微观结构等影响.研究结果表明,紫外辐射后的聚酯纤维样品的分子量、强伸度大幅度下降,结晶度有所提高,玻璃化转变温度、熔点均有所降低.而聚酯复合纤维材料的抗辐射效果较聚酯纤维有所改善.消光剂、纳米级紫外线屏蔽剂对辐射过程中的聚酯纤维样品起到了明显的稳定作用,其中纳米紫外线屏蔽剂具有更好的效果.
参考文献
| [1] | Hoekstra HD.;Breen J.;Audouin L.;Verdu J.;Spoormaker JL. .UV-EXPOSURE OF STABILIZED AND NON-STABILIZED HDPE FILMS - PHYSICO-CHEMICAL CHARACTERIZATION[J].Polymer Degradation and Stability,1995(2):251-262. |
| [2] | Jean-Louis Philippart;Christophe Sinturel;Rene Arnaud .Influence of the exposure parameters on the mechanism of photooxidation of polypropylene[J].Polymer Degradation and Stability,1999(2):213-225. |
| [3] | DAY M;MILES D M .Photochemical degradation of poly(ethylene terephthalate):I.irradiation experiments with the xenon and carbon arc[J].Journal of Applied Polymer Science,1972,16:175-189. |
| [4] | S. K. Malik;Tanuja Arora .UV radiations : Problems and remedies[J].Man-made textiles in India,2003(5):164-169. |
| [5] | Wang W.;Fukuhara M.;Okada T.;Taniguchi A. .Surface nature of UV deterioration in properties of solid poly(ethylene terephthalate)[J].Journal of Applied Polymer Science,1998(4):705-714. |
| [6] | QIU Shuzhe;ZHENG Wushun .Thermal degradation and catalytic cracking of pely(ethylene terephthalate)[J].Polymer Degradation and Stability,1999,63:407-412. |
| [7] | XU Dayi .DSC analysis of PET resins[J].Synthetic Fiber Industry,1993,16(05):28-32. |
| [8] | Shichun Jiang;Xiangling Ji;Lijia An;Bingzheng Jiang .Crystallization behavior of PCL in hybrid confined environment[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(8):3901-3907. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%