摘要
以纳米TiO2为光催化剂,以ATBC为增塑剂,制备了纳米-TiO2/PVC糊复合膜。研究了该薄膜在紫外光照射条件下的降解性能,并进行了GPC、SEM、FT-IR等分析,测试了复合膜经紫外光照射前后的质量变化、分子量变化、表面形貌的变化。结果表明,该复合膜在紫外光照射下,降解速率可提高128.43%左右。GPC测试结果表明,经紫外光照射720h后,数均分子量Mn和重均分子量Mw可分别降低24.75%和17.7%左右;SEM表明,降解后PVC糊复合膜表面有大量裂纹且部分裂解成碎片。
Nano-TiO2/PVC paste composition films, which were prepared by ATBC, PVC paste resin and nano- TiO2, were studied in the irradiation condition of UV light. GPC, SEM, FT-IR and other special analyses were used to characterize the films. The results indicate that the degradation efficiency of nano-TiO2/PVC composition films is increased about 128.43% GPC test results indicate that after 720h irradiation on the films, the Mo and Mw decrease 24. 75G and 17. 7% respectively, the surface morphology of nano-TiO2/PVC composition films shows many cracks and some cracking to pieces.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2012年第B11期296-299,304,共5页
Journal of Functional Materials
基金
贵州省成果推广计划资助项目([2011]5011)
贵阳市科技计划资助项目(筑科合同[2012203])
