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361.双螺带混合机在高黏度物料输送上的应用
[橡胶和塑料制品业] [2015-10-10]
针对聚苯硫醚装置工艺特点对双螺带锥形混合机在系统中的作用进行了简述,并结合昊华鸿鹤特种工程塑料分公司2 kt/a纤维级聚苯硫醚(PPS)树脂装置实际生产情况对影响干燥设备长周期稳定运行的因素进行了较为详细的分析;同时,针对分析结果提出了具体改进、维护和操作措施,有效地使双螺带锥形混合机在聚苯硫醚装置上达到了最佳的经济运行效果。
关键词：混合机；低聚物；输送；应用
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362.导电填料维数对PA6/UHMWPE基导电复合材料拉伸敏感行为的影响
[橡胶和塑料制品业] [2015-10-10]
通过溶液共混法,分别以不同维数碳系填料(碳黑CB、碳纳米管CNTs、石墨烯G)填充聚己内酰胺(PA6)/超高摩尔质量聚乙烯(UHMWPE)制备了导电高分子复合材料。为了改善界面黏合,加入马来酸酐接枝聚乙烯(MAH-g-PE)为界面增容剂。形态观察发现,体系中导电填料均选择性分布在PA6中,而CB/PA6被黏度较高的UHMWPE隔离,体系形成特殊的隔离-双逾渗导电网络。研究了导电填料维度对拉伸敏感行为的影响。结果表明,随着循环次数的增加,CNTs/PA6/UHMWPE拉伸敏感性能峰值呈现逐渐下降趋势;而CB/PA6/UHMWPE和G/PA6/UHMWPE均呈现先下降后稳定的趋势。
关键词：高分子；电学性能；应变；维数
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363.水力压裂用破胶剂微胶囊化的研究现状
[橡胶和塑料制品业] [2015-10-10]
介绍了近年来胶囊破胶剂的国内外研究现状及其现场应用,重点论述了胶囊破胶剂的包覆方法、包覆材料、破胶机理以及释放性能评价。并指出了胶囊破胶剂现存的经济技术问题和研究方向。
关键词：压裂；添加剂；破胶返排；胶囊破胶剂；包覆
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364.紫外光固化聚氨酯丙烯酸酯/二氧化硅杂化材料的合成与性能研究
[橡胶和塑料制品业] [2015-10-10]
以聚氨酯丙烯酸酯(PUA)为有机组分,硅烷偶联剂KH-560改性硅溶胶为无机组分,用溶胶-凝胶法制备紫外光(UV)固化聚氨酯丙烯酸酯/二氧化硅杂化材料。讨论了PUA预聚物、改性硅溶胶、复合光引发剂TPO和184的用量对UV固化杂化材料性能的影响。并通过傅里叶变换红外光谱(FT-IR)、扫描电镜(SEM)、紫外-可见光谱(UV-vis)及差热分析(TG-DTG)对UV固化涂膜的结构和性能进行了表征和测试。结果表明,当PUA低聚物的质量分数为50%、KH-560改性硅溶胶为15%、复合光引发剂为5%且TPO和184质量比为0.6时,杂化材料的性能最佳,其硬度达5H,附着力为0级,柔韧性为1 mm,在室温下15 d不黄变,在650 nm下透光率为90%以上,且成膜性和耐热性还较好。
关键词：紫外光固化；聚氨酯丙烯酸酯；改性硅溶胶；杂化材料
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365.基于卷积神经网络的注塑制品短射缺陷识别
[橡胶和塑料制品业] [2015-10-10]
以注塑制品的常见短射缺陷为研究对象,提出一种基于卷积神经网络算法的识别方法,克服了现有缺陷识别算法需手动提取特征、需要启发式方法的缺点。方法对传统卷积神经网络结构进行了大量改进,并优化网络参数,降低其算法消耗的时间。实验数据表明,网络对短射缺陷的识别率达到99.4%。另外,与BP神经网络进行比较研究,从实验中可以看出方法识别率明显优于BP神经网络,具有很好的应用前景。
关键词：注塑制品；缺陷识别；卷积神经网络；机器视觉
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366.激光改性对聚氨酯表面湿润性能影响的实验研究
[橡胶和塑料制品业] [2015-10-10]
采用脉冲激光(λ=1 064 nm,v=3 m/s,f=45 k Hz)对聚氨酯(PUR)表面的形貌和湿润性进行改性。利用扫描电子显微镜(SEM)、三维视频显微镜、激光非接触式粗糙度测试仪研究了激光功率对PUR表面形貌的影响规律。结果表明,激光刻蚀后的PUR表面具有孔洞、凸起、沟槽的形貌特征,表面粗糙度增大;功率从1 W增大到7W的过程中,表面粗糙度逐渐增大;功率7~10 W变化时,表面粗糙度逐渐减小。采用SEM、光电子能谱仪(XPS)、SL200B型接触角测定仪探讨了激光改性对PUR表面湿润性的影响机理。结果表明,未经激光改性的PUR表面,水接触角为73°,表明此时PUR表面呈亲水性;激光改性后,水接触有所增大,当P=5 W时,接触角为94°,表明PUR表面已由亲水性变为疏水性,另外发现,随着激光功率的增加,接触角逐渐变大,当P=7 W时,水接触达到最大值123°,分析激光改性前后的PUR表面XPS图谱发现,改性后材料表面的碳氧比例(O/C)有所增加,表明含氧极性官能团增加,理论上更利于PUR表面的亲水性,但由于表面形貌的变化,材料表面仍呈疏水性,符合Cassie模型。所以,激光改性使得PUR表面湿润性发生变化主要是由其表面的形貌发生变化所引起的。
关键词：激光；表面改性；形貌；湿润性
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367.印度软包装市场报告（2015-2019年）
[橡胶和塑料制品业] [2015-09-20]
Flexible packaging products are made of easy-yielding materials that can easily change shape to accommodate the product being packaged. Plastic, aluminum, and paper are used to make flexible packaging. These materials undergo printing, lamination, coating, and extrusion to develop products such as plastic bags and pouches, lidding films, foil bags, and sachets. Packaging protects the product from damage and spoilage, and improves its overall aesthetic appeal. It also provides essential information about the product and convenience for consumers in terms of handling.
关键词：软包装；易产生；材料；容易改变形状；适应产品；封装保护；免受；损坏和腐败
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368.全球橡胶加工化学品市场报告（2015-2019年）
[化学纤维制造业,橡胶和塑料制品业] [2015-09-17]
Rubber is a polymer that is classified into two types, namely, natural rubber and synthetic rubber. Natural rubber is extracted from latex, which is a milky fluid emanating from the bark of rubber trees, while synthetic rubber is manufactured through chemical processes. The rubber is processed using various chemicals to improve its resistance to heat, sunlight, oxidation, ozone, and mechanical stress. Rubber processing chemicals are also an integral component used for vulcanizing rubber. They are classified into different groups based on their functions. The different types that are mainly used are antidegradants, accelerators, processing aids, anti-scorch agents, blowing agents, polymerization regulators, and shortstops.
关键词：橡胶；天然橡胶；合成橡胶；化学过程制造；硫化橡胶；抗降解剂；促进剂；加工助剂；防焦烧剂；发泡剂；聚合调节
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369.全球吸塑包装市场报告（2015-2019年）
[橡胶和塑料制品业] [2015-09-17]
Blister packaging is a pre-formed plastic packaging used for small consumer goods, pharmaceutical drugs, and medical devices. A blister pack is made of aluminum foil or plastic with a cavity or pocket made from thermoformed plastic. It protects products from contamination, humidity and other external conditions. Blister packs are manufactured through two processes: thermoforming and cold forming. Primarily, these packs are used to package pharmaceutical products such as over-the-counter (OTC) drugs and medicines, and small medical devices. A blister that folds onto itself is known as a clamshell.
关键词：泡罩包装；塑料包装；小消费品；药品；医疗设备；甲泡罩包装；翻盖
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370.全球赛车轮胎市场报告（2015-2019年）
[汽车制造业,橡胶和塑料制品业] [2015-09-06]
Racing tires are a range of high-performance tires that are customized for usage in racing vehicles. Production of racing tires is capital-intensive, requiring a significant degree of hi-tech equipment coupled with highly trained and skilled manpower dedicated to the purpose of engineering and manufacture. Racing tires are designed to deliver superior performance, and therefore undergo various quality, durability, and speed tests. Besides natural and synthetic rubber as the primary raw material, textile reinforcements like rayon, aramid, nylon, and polyester are also used to manufacture racing tires.
关键词：赛车轮胎；高性能轮胎；资本密集型；高科技设备；优越性能；质量；耐用性；速度测试
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