以硬脂酸钠改性的纳米TiO2为光催化剂,与LDPE树脂制备了nano-TiO2/PE复合薄膜.研究了该薄膜在紫外光照射条件下的降解性能,并进行了SEM、FI-IR、VHX-100数码显微镜等分析,测试了薄膜经辐照前后的力学性能、质量变化和分子量变化.研究结果表明,该薄膜在紫外光照射下降解性能明显提高,薄膜在40W、254nm的紫外光照射120h后,粘均分子量(Mη)降低27.1%,拉伸强度降低49.1%,断裂伸长率降低91.3%;照射144h后质量损失达16%(质量分数);辐照后薄膜的羰基含量升高.
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