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441.美国糖果包装市场报告（2015-2019年）
[食品制造业,橡胶和塑料制品业,造纸和纸制品业] [2015-04-11]
Confectionery products can be classified into three segments: Chocolate, Sugar Confectionery, and Gum. These items are popular among all age groups. The sale of confectionery products is independent of seasons or occasions. Packaging is an essential part of confectionery goods to preserve their quality, texture, and taste before they reach customers. Confectionery dealers always look for packaging vendors that can provide appealing packaging solutions in terms of material, color, and innovation. This helps increase sales by enhancing product visibility.
关键词：糖果产品；糖果产品销售；质量；质地；味道；材质；颜色；创新
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442.全球RO膜市场报告（2015-2019年）
[化学纤维制造业,橡胶和塑料制品业] [2015-04-11]
RO is a technology that uses a semipermeable membrane to remove dissolved salts or organic molecules. The water is pushed using a high-pressure pump through the membrane and allows the passage of water molecules but prevents dissolved salts and bacteria from passing through. The pump capacity required for the process depends on the salt concentration of the feed water. The semipermeable membrane used for the process is mainly made of two materials: cellulose acetate and an aromatic polyamide. In addition, the RO membranes fall into two categories – Asymmetric membranes and thin film composite membranes. While asymmetric membranes contain one polymer, the thin film composite membranes contain two or more polymer layers.
关键词：反渗透；半透膜；除去；溶解盐；有机技术分子；不对称膜；薄膜复合膜
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443.美国伸展和收缩薄膜市场报告（2015-2019年）
[化学纤维制造业,橡胶和塑料制品业] [2015-04-10]
Stretch and shrink films are used for packaging and protecting goods from damage and spoilage. As these highly engineered polythene films have special chemical properties, they differ from one another in terms of their flexibility and stretchability. Stretch films are thin elastic polythene films that are used to wrap around pallet loads, while shrink films are thin films that are used to wrap around a single product or commodity and require heat for packaging.
关键词：伸展和收缩膜；包装；保护；货物；免受；损坏；腐败变质
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444.美国绿色包装市场（2015-2019年）
[造纸和纸制品业,橡胶和塑料制品业] [2015-04-09]
Green packaging is the development of packaging materials by recycling and reusing products to improve sustainability. Green packaging technology uses materials such as paper, plastic, metal, and glass. A major advantage of green packaging is the low toxin and carbon dioxide emissions. Hence, industries, such as the F&B, Healthcare, increasingly adopting these materials to reduce their environmental impact. In addition environmental concerns are leading to the entry of numerous vendors into the market.
关键词：绿色包装；包装材料；回收利用；提高；可持续性；绿色包装技术
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445.光导透明塑件注塑成型数值模拟与实验研究
[橡胶和塑料制品业] [2015-04-08]
以车灯导光条光学透明塑件注塑成型为例,采用数值模拟技术和实验方法,考察成型工艺对车灯导光条注塑成型缺陷的影响,通过多种方案的比较,获得了合理的注塑成型工艺参数,并改进了模温控制系统,经试模,车灯导光条塑料制品光学性能达到预期要求。
关键词：光导透明塑件；成型工艺；数值模拟；实验研究
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446.塑件表面模内装饰技术应用现状分析
[橡胶和塑料制品业] [2015-04-08]
简要介绍了塑件表面模内装饰技术的分类及其工艺流程,分别针对模内镶标注塑(IML)、模内镶件注塑(IMF)和模内转印(IMR)等工艺的成型方式、工艺特点、适用范围等进行了比较和说明。重点论述了装饰膜的材料和结构,并列举了部分装饰膜的应用;同时讨论了模内装饰技术对装饰膜塑胶片材和油墨的要求。最后,列举了目前国内外模内装饰技术中较为新颖的实际应用和工艺方法,展望了未来塑件表面模内装饰技术的发展趋势,并给出了一些建议。
关键词：塑件表面；模内装饰；塑胶片材；装饰膜；模内装饰技术成型工艺
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447.工艺条件及稳定剂对CPVC透光率的影响
[橡胶和塑料制品业] [2015-04-08]
研究混料时间、混料温度、热稳定剂含量和模压时间对氯化聚氯乙烯(CPVC)透光率的影响,并通过正交试验法优化其加工工艺条件与热稳定剂含量。首先通过单因素实验研究了每个因素对实验结果的影响,并在每组实验中选取3个最优水平,然后通过正交试验法优化最佳实验条件。结果表明,适度提高混料时间、混料温度、热稳定剂含量和模压时间,有助于提高CPVC的透光率。正交试验结果表明最佳条件为:混料时间5 min,混料温度190℃,有机锡含量5%,模压时间5 min。在该实验条件下,制得的CPVC透光率为85.6%。
关键词：氯化聚氯乙烯；工艺条件；热稳定剂；透光率；正交试验法
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448.线型低密度聚乙烯溶液接枝聚甲基丙烯酸甲酯
[橡胶和塑料制品业] [2015-04-08]
用溶液接枝聚合的方法在线型低密度聚乙烯(LLDPE)上接枝聚合极性单体甲基丙烯酸甲酯(MMA)制备LLDPE-g-PMMA,研究了反应时间、单体用量和引发剂用量对接枝反应的影响。结果表明,随着引发剂和单体量的增加,聚合物的接枝率增加,当引发剂质量分数为0.48%,单体比率为150%时,接枝率将达到26.1%。利用红外光谱(FTIR)、核磁共振碳波谱仪(13C-NMR)对其进行结构表征,证明PMMA分子链被接枝聚合到LLDPE上。使用X射线衍射仪(XRD)、差示扫描量热仪(DSC)对接枝聚合物的结晶性能进行了分析,发现接枝聚合没有改变晶型,但结晶焓由61.39 J/g降低到47.18 J/g。
关键词：线型低密度聚乙烯；接枝聚合；接枝率；结晶度
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449.酯交换缩聚法合成高摩尔质量聚醚型聚氨酯的合成工艺与表征
[橡胶和塑料制品业] [2015-04-08]
采用酯交换缩聚法,以聚四氢呋喃醚二醇(PTMEG)和1,6-六亚甲基二氨基甲酸甲酯(HDU)为原料,二丁基氧化锡为催化剂制备热塑性聚醚型聚氨酯(EU)弹性体。用红外光谱(IR)、凝胶渗透色谱(GPC)、热重分析(TGA)、力学性能测试等表征合成聚合物的性能。通过一系列单因素实验探讨了原料配比、预聚温度、缩聚温度等对EU弹性体特性黏数的影响规律。最佳制备工艺为:预聚阶段,分段变温80℃(0.5 h)→90℃(0.5 h)→100℃(0.5 h),压力为2.6 k Pa(1 h)→1.4 k Pa(0.5 h);缩聚阶段:温度为185℃,压力为0.2 k Pa,时间为1.75 h。制得特性黏数为1.553 d L/g、数均摩尔质量为87 079 g/mol的EU弹性体。其邵尓A硬度为68,拉伸强度为4.393 MPa,断裂伸长率为1 325.96%。
关键词：酯交换缩聚；热塑型弹性体；1,6-六亚甲基二氨基甲酸甲酯；特性黏数
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450.聚己内酰胺铸膜液的制备及性能
[橡胶和塑料制品业] [2015-04-08]
为了避免常规聚酰胺铸膜液的酸性腐蚀,基于热致相分离法(TIPS),优选出N-乙基邻对甲苯磺酰胺(N-E-O/PTSA)作为聚酰胺铸膜液的稀释剂。热失重分析表明,铸膜液具有较好的热稳定性,分解温度远高于制膜温度200℃。此外,差示扫描量热法显示,稀释剂降低了聚酰胺6(PA6)的熔融温度,符合Flory聚合物-稀释剂体系熔点降低方程。为构筑TIPS法制膜的多重微孔结构,铸膜液中添加了微米Si O2,从而提高了PA6/N-E-O/PTSA体系的结晶温度,而对熔融温度的影响较小。
关键词：聚己内酰胺；稀释剂；铸膜液；热致相分离
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