Deepening study was carried out of the synthesis of polyvinyl formal, its reaction law was summed up and optimum technological conditions were presented.
深入研究了聚乙烯酸缩甲醛的合成工艺，归纳了反应规律，提出了最佳工艺条件。
Ways to modify the gels of polyvinyl formal, polyvinyl acetate, urea-formaldehyde and amylum are plesented and formulae and alternate properties of various modified products introduced.
讨论了聚乙烯醇缩甲醛胶、聚醋酸乙烯酯胶、脲醛胶、淀粉胶的改性途径，介绍了各改性产品的配方及其性能比较。
The production procedure of polyvinyl acetate latex paint in polyvinyl formal solution was studied.
研究了在聚乙烯醇缩甲醛溶液中制备聚醋酸乙烯酯乳胶漆的方法。
The changes in mechanical and physical properties and chemical structure of polyvinyl formal (PVFM) foam caused by hygrothermal ageing tests were studied by means of IR and other measuring methods.
用红外光谱和其他测试方法对聚乙烯醇缩甲醛（PVFM）泡沫材料湿热老化前后力学性能、物理性能和化学结构的变化进行了研究。
This paper describes the preparation of a polyvinyl formal emulsion with less free formal content, good freeze-thaw stability and excellent initial viscosity after formalization and oxidation of polyvinyl alcohol emulsion.
通过对白乳胶缩醛、氧化的工艺，制得游离甲醛含量低、冻融稳定性好、初粘性好的聚乙酸乙烯酯缩醛白乳胶。
Polyvinyl formal was used as protective colloid to produce a new polyethylene acetate emulsion.
以聚乙烯醇缩甲醛为保护胶体，合成聚醋酸乙烯乳液。
A stable microemulsion of Chinese lacquer (MECL) was prepared with a phase inversion by blending the polymer emulsions of polyvinyl formal (PVFM) and styrene-acrylate copolymer (SA).
以聚乙烯醇缩甲醛和苯乙烯-丙烯酸酯共聚物为乳化剂，通过相反转方法直接微乳化生漆。
The slow-release oxygen fertilizer use calcium peroxide as the core, sodium bentonite as filling materials, polyvinyl formal as adhesive.
以过氧化钙为核心，钠基膨润土为填充材料，聚乙烯醇缩甲醛为粘合剂。
Preparation and usage of polyvinyl formal modified with polyacrylate and silica sol are introduced.
介绍了一种用聚丙烯酸酯和硅溶胶改性聚乙烯醇缩甲醛的制备方法和用途。
The process of water soluble transforming rust cleaning and resistant coating was studied using water as solvent, zinc phosphate, phosphoric acid and tannin extract as rust transforming agent and polyvinyl formal as paint.
主要研究了以水为溶剂，氧化锌、磷酸锌、磷酸、烤胶为锈转化剂，以聚乙烯醇缩甲醛为漆料的转化型除锈防锈漆的生产工艺；
The preparation technology and its effect factors for polyvinyl formal foam plastic by way of mechanical foaming method were studied.
本文论述了用机械发泡法制备聚乙烯醇缩甲醛泡沫塑料的工艺及其影响因素。
Polyvinyl formal wire polyethylene solid insulated cord
聚乙烯实心绝缘软线
Polyvinyl formal high strength wire coating
聚乙烯醇缩甲醛高强度漆包线漆
The advantages of obtained polyvinyl formal adhesives are higher viscosity, good initial tack, fast drying rate, good stability, water soluble and law content of formaldehyde. This adhesives is a good one for labeling beer bottles.
制得的聚乙烯醇缩甲醛胶粘剂具有粘度大、初粘性好、干燥速度快、稳定性好及游离甲醛含量低等优点，是一种良好的啤酒瓶贴标用胶粘剂。
Studies on polyvinyl formal foam plastic
聚乙烯醇缩甲醛泡沫塑料的研究