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- Polyvinyl alcohol (PVA) can be used to produce vinylon，polyvinyl butyral (PVB), and polyvinyl formal. 聚乙烯醇（PVA）可用于生产维纶、聚乙烯醇缩丁醛（PVB）和聚乙烯醇缩甲醛。
- This paper introduces the principle of polyvinyl formal acetal production,the influecing factor of product quality and the quality control in the process. 介绍聚乙烯醇缩甲乙醛生产的原理,影响产品质量的因素以及在生产中如何控制。
- 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。
- 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 synthesis of seed coating agents polyvinyl formal resin, urea formal resin, acrylic acid-acrylic amide coploymer, citric acid-glycol polyester and oxystarch waw studied. 研究了种衣剂聚乙烯醇缩甲醛，脲醛树脂，丙烯酸-丙烯酚胺共聚物，柠檬酸-乙二醇聚酯，氧化淀粉等合成方法。
- As to the protective colloid using PVA or polyvinyl formal with the same concentration (7%), when the solid content of white glue enhanced 1%, the adhesive strength of PVAc would increase 0.27MPa and 0.33MPa respectively. 分别以相同浓度(7%25)聚乙烯醇、聚乙烯醇缩甲醛为保护胶体，制得的白乳胶的固含量(即聚醋酸乙烯醋含量)每提高1%25，粘接强度分别提高为0.;27Mpa、0
- 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。
- This paper introduced a preparation of modified polyvinyl formal adhesive.The adhesive has advantage of low free formaldehyde content,good viscosity stability and low temperature storage stability. 介绍了聚乙烯醇缩甲醛改性胶粘剂的制备方法。该胶粘剂具有粘度高,游离甲醛低,稳定性好的优点。
- Regeneration of the Over-condensed Polyvinyl Formal 聚乙烯醇缩甲醛的缩醛度过大的再生处理
- polyvinyl formal high strength wire coating 聚乙烯醇缩甲醛高强度漆包线漆
- Development of modified polyvinyl formal adhesives 改性聚乙烯醇甲醛胶粘剂的研制
- Polyvinyl formal cement floor paint 聚乙烯醇缩甲醛水泥地面涂料
- Polyvinyl formal acetal production 聚乙烯醇缩甲乙醛
- Preparation of Environmentally Modified Polyvinyl Formal Emulsion 聚乙酸乙烯酯缩醛白乳环保改性的研制
- We were invited to a formal luncheon. 我们被邀参加一次正式的午宴。
- Preparation of the modified polyvinyl formal adhesive 改性聚乙烯醇缩甲醛胶粘剂的研制
- He cast his last remark in more formal wording. 他用更正式的措词表达了最后一句话。
- The Combination of Inhibitor of Formaldehyde Polyvinyl Formal 甲醛阻聚剂聚乙烯醇缩甲醛的合成
- Don't you be so fucking formal with me. 别你他妈的对我这么一本正经了。
- The letter is written in formal style. 这封信是用正式文体写的。
