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badaorong新虫 (初入文坛)
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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。 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。 关键词：聚苯胺/二氧化钛 失重率 LDPE 复合薄膜 光氧化 |
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【答案】应助回帖
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badaorong(fjtony163代发): 金币+15, 代发 2016-04-30 14:11:20
badaorong(fjtony163代发): 金币+15, 代发 2016-04-30 14:11:20
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Abstract: Plastic usage produced environmental pollution is becoming increasingly serious and research on degradable plastics has attracted much attention. Photooxidation-biodegradable plastic, which is produced based on a combined mechanism of photodegradation and biodegradation and considered an ideal degradable plastic, overcome the shortcoming of single photodegradable plastic and biodegradable plastic, and has become a world research focus. Polyaniline/titanium dioxide composite particles were synthesized by ice-water bath method, and ultraviolet spectrophotometer measurement show that the forbidden bands width of polyaniline-modified titanium dioxide was significantly decreased, which enhanced its absorption of visible light, thus leading to an increased utilization of solar light. The weight loss ratio of LDPE laminated films were measured and results show that the weight loss ratio of the 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 greater photooxidation effect to laminated film. Keywords: Polyaniline/Titanium Dioxide; Weight Loss Ratio; LDPE; Laminated Film; Photooxidation |
3楼2015-12-28 18:48:42
武汉一心一译 
捐助贵宾 (著名写手)
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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
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
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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 |
2楼2015-12-23 22:56:16
