关键词：天然橡胶；资金制约

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In broad terms, packaging refers to the technology of enclosing a product for the purpose of storage, distribution, sale, and use. Flexible packaging is a non-rigid method of packaging. Packaging products are made of flexible or easy-yielding materials which can easily change shape based on the nature of the product being packaged. Flexible packaging materials include plastic, aluminum, and paper. These materials undergo a detailed conversion process such as printing, lamination, coating, and extrusion to develop different types of flexible packaging products such as plastic bags and pouches, lidding films, foil bags, and sachets. Packaging these days is not only used to protect a product from spoilage, but it has also become important in improving the overall esthetic appeal of the product, providing essential information about the product, maintaining the freshness of food and beverages, and providing convenience for consumers in terms of handling/carrying the product.

关键词：包装；封装产品；塑料；铝；纸

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关键词：原材料；轮胎业

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关键词：塑料制品；中速前行

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关键词：塑料行业；发展； 政策扶持

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Tires are an integral component of automobiles and are manufactured using raw materials such as natural rubber, nylon tire cord fabric, and carbon black. Rubber chemicals and synthetic rubber, including stirene-butadiene rubber and poly-butadiene rubber, are also used in manufacturing tires. Off-highway tires are used in various off-highway vehicles and equipment such as mining, construction, earthmoving, agriculture, and farm vehicles and equipment.

关键词：越野轮胎；天然橡胶；锦纶帘子布；炭黑

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针对生物可降解材料聚乳酸的一些缺点,提出了几种改性的方法,并对聚乳酸成型加工常用的两种方法,即挤出成型和注射成型做了介绍,最后对聚乳酸的应用进行了展望.

关键词：聚乳酸；成型加工；吹塑；弹性模量

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通过微乳液聚合的方法将聚苯胺( PANI)接枝到酸化碳纳米管表面,再将原始碳纳米管、酸化碳纳米管、PANI接枝碳纳米管及纯PANI分别添加到丙烯腈-丁二烯-苯乙烯塑料(ASS)中.运用红外光谱、X射线衍射、透射电子显微镜对不同阶段的碳纳米管进行了表征；扫描电子显微镜观察发现,PANI接枝碳纳米管在ABS基体中的分散性优于原始碳纳米管；电性能结果表明,在相同添加量的情况下,PANI接枝碳纳米管与其他填料相比,抗静电效果最佳.

关键词：多壁碳纳米管；丙烯腈-丁二烯-苯乙烯塑料；聚苯胺；抗静电性能

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增塑剂是工业上被广泛使用的高分子材料助剂，在塑料(合成革等)加工中添加这种物质，可以使其柔韧性增强，容易加工，可合法用于工业用途。环保增塑剂是一种新型增塑剂，这种环保增塑剂有着无毒、无致癌物质、绿色环保等特性。环保增塑剂被应用于塑料制品，而传统增塑剂的塑料制品面临严峻的安全考验，开发出新的环保增塑剂品种刻不容缓，应用环保增塑剂的塑料制品将占领整个国际市场。我国正面临环保增塑剂引领“绿色”塑料制品的转型，环保增塑剂的研发一直在努力，随着科技的不断进步我国会在环保增塑剂领域走得更远。

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采用双螺杆挤出工艺制备聚乳酸( PLA)/乙酸丙酸纤维素(CAP)简单共混复合材料.通过力学性能、吸水性、扫描电子显微镜、动态热机械分析和热重分析等手段,研究了CAP用量对复合材料拉伸强度、微观形态及松弛行为的影响.结果表明,随着CAP用量的增加,其拉伸强度出现峰值,加入CAP使复合材料具有较好的力学性能,同时没有影响PLA的链段运动.

关键词：双螺杆挤出机；聚乳酸；乙酸丙酸纤维素；共混

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