查询词典 polyvinyl

The paper studied the preparation of modified urea-formaldehyde resin adhesive with polyvinyl alcohol and melamine.

研究了聚乙烯醇和三聚氰胺改性脲醛树脂胶粘剂的制备工艺和配方。

Companies continuously improve existing products in the technical level, has started the introduction of foreign technology, the development of polyvinyl chloride pipe production equipment, aluminum veneer production line, with no air shaft plate, floating roller tension, automatic AC inverter Technology, PLC touch-screen control of the domestic first-class new generation of concave printing presses.

公司在不断提高现有产品技术水平的同时，已经着手引进国外技术，开发聚氯乙烯管材生产设备，铝单板生产线，无轴气动装板、浮辊张力、全自动交流变频技术、PLC触摸屏控制等新一代国内一流凹印刷机。

Companies operating various types of professional domestic plastic raw materials imports, mainly polypropylene, high-low pressure polyethylene, linear polyethylene, polystyrene, polyvinyl chloride, sulphur and some engineering plastics, turnover amounted to three billion Yuan.

公司专业经营各类进口国产塑料原料，主要有聚丙烯、高低压聚乙烯、线性聚乙烯、聚苯乙烯、聚氯乙烯、部分工程塑料及硫磺，年营业额达到叁亿多元人民币。

Construction works, including polyvinyl chloride waterproofing sheets without felt, with single-ply fibre felt

本标准适用于建筑防水工程用的以聚氯乙烯为主要原料制成的防水卷材，包括无复合层、用纤维单面复合

The scrap rubber powder was treated with plasma and then compounded with the polyvinyl chloride. The structure and properties of the PVC composites filled with untreated or plasma treated SRP were studied.

利用等离子体对废橡胶胶粉进行了表面处理，并将其与聚氯乙烯进行共混，研究了等离子体处理前后胶粉／PVC复合材料的结构和性能。

Objective:A GF-AAS method was established for the determination of lead in tipping paper,filter plug wrapping paper,diacetate cellulose tow,polypropylene fiber tow,glycerol triacetate for cigarette,polypropylene fiber tow filter rod adhesive,polyvinyl acetate emulsion adhesive,hot melt adhesive.

目的：建立了接装纸、成形纸、醋纤丝束、聚丙烯丝束、三醋酸甘油酯、聚丙烯丝束胶粘剂、白乳胶、热熔胶等8种滤嘴用卷烟材料中铅的测定方法—石墨炉原子吸收光谱法。

The very good method to analyze the structural change of reaction process of polyvinyl alcohol modified UF resin by the traditional process alkali-acid-alkali is 13C-NMR,and which extrapolate a possibly reaction.

通过13C-NMR解析了采用传统工艺合成聚乙烯醇改性脲醛树脂反应过程中的结构变化，并推测其反应。

Experiment finds that melamine formaldehyde resin could reduce the ramie fiber's water absorption.But it usually has low storage stability.For improving the storage stability,the property of Melamine formaldehyde resin is modified by polyvinyl alcohol.

实验发现，三聚氰胺甲醛树脂可降低苎麻纤维的吸水率，但三聚氰胺甲醛树脂存放稳定性差，加入聚乙烯醇进行改性可显著改善三聚氰胺甲醛树脂的贮存稳定性。

The aim of this study was to discuss the optimizing preparation conditions of polyvinyl alcohol hollow microsphere and its application in the production of slow-release urea fertilizer.

［目的］探讨聚乙烯醇空心微球的优化制备条件及其在尿素缓释肥生产中的应用。

Polyvinyl alcohol has been used industrially as a dispersant in the synthesis of the polymer emulsions of vinyl acetate.

聚乙烯醇已用于工业作为分散剂在合成聚合物乳液醋酸乙烯酯。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。