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badaorong(fjtony163代发): 金币+20, 代发 2016-04-30 14:11:32
fjtony163: 翻译EPI+1, 代发 2016-04-30 14:11:38
摘 要
当前，塑料 带来的 环境污染 日益突出，研究 可降解塑料 已经 受到社会的 高度重视。其中 光氧化-生物 降解塑料 是利用 光降解机理 和 生物降解机理 相结合的 方法 制得的 一类塑料，是比 较理想的 降解塑料。它克服了 单一 光降解塑料 和 生物降解塑料 的缺点，因而 成为 近年来 国内外 研究的 重点 和 热门课题。
Abstract：Currently, plastic pollution has been increasingly serious and research on degradable plastics has attracted high attention of the whole society. photooxidation - biodegradable plastic is a kind of ideal degradable plastic, which is produced based on the combined method of photodegradation mechanism and biodegradation mechanism. Without the defects of single photodegradable plastic and biodegradable plastic, Photooxidation - biodegradable plastic has become a worldwide research focus and hot subject in recent years.
本论文 用 冰水浴法 合成 聚苯胺/二氧化钛 复合粒子，用 紫外光分光光度计 测试得，经聚苯胺 改性过的 二氧化钛的 禁带宽度 明显降低，增大了 其 对可见光的 吸收，从而 提高了 对太阳光 的利用率。将 聚苯胺/二氧化钛 复合粒子 填充在 LDPE复合薄膜中，在 紫外光光照下 测其 失重率。实验 结果表明：添加 聚苯胺/二氧化钛粒子 的 复合薄膜 的失重率80.72%，而添加 纯二氧化钛的 复合薄膜 和 纯的LDPE薄膜 分别为67.19%和1.138%，这说明 聚苯胺 改性的 二氧化钛粒子 有更好的 光氧化降解效率，对薄膜的 光氧化程度 更大。
In this paper, Polyaniline/titanium dioxide composite particles were prepared by ice-water bath method, and then it can be measured by ultraviolet spectrophotometer that the energy gap of titanium dioxide modified by polyaniline was significantly decreased, which enhanced the absorption of visible light, thus leading to increased use ratio of solar light. By filling polyaniline/titanium dioxide composite particles into LDPE laminated film, the weight loss ratio of film was measured under ultraviolet light. Results show that the weight loss ratio of laminated film added with polyaniline/titanium dioxide composite particles was 80.72%, while that of pure titanium dioxide laminated film and pure LDPE film was 67.19% and 1.138%, respectively, indicating that the polyaniline/titanium dioxide composite particles have higher photo-oxidative degradation efficiency and show greater photooxidation effect to laminated film.
关键词：聚苯胺/二氧化钛 失重率 LDPE 复合薄膜 光氧化
Keywords: Polyaniline/Titanium Dioxide; Weight Loss Ratio; LDPE; Laminated Film; Photooxidation |
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