A kind of highly effective formaldehyde inhibitor,polyvinyl acetal was prepared from acetic acid,ethylene and acetaldehyde.
采用醋酸乙烯酯和乙醛为原料,合成了高效甲醛阻聚剂———聚乙烯醇缩乙醛。
The polyvinyl formal was prepared via acetalation from polyvinyl alcohol and formaldehyde in water-solution under the condition of pH value was 1.
5~2的条件下,以聚乙烯醇和甲醛为原料,在水溶液中发生缩醛反应制备聚乙烯醇缩甲醛胶,然后向胶中添加适量的尿素和分散助剂PAAM/COB,经调配得到新型水溶性聚乙烯醇缩甲醛涂料。
In accordance with the princiole that in acid media the condensation reaction of hydroxylaldehyde is inversible, a way is given for the regeneration of the gel formed in the process of preparing polyvinyl formal.
根据在酸性介质中羟醛缩合反应是可逆的原理,对聚乙烯醇缩甲醛的制备过程中出现的凝胶进行再生处理,减少了原料浪费。
polyvinyl acetal resin
聚乙烯醇缩乙醛树脂
polyvinyl formal wire
聚乙烯醇缩甲醛绝缘线
pelyvinyl formal fibre
聚乙烯醇缩甲醛纤维
polyvinyl butyral cementing agent
聚乙烯醇缩丁醛粘合剂
Study on Application of Crotonaldehyde in Adhesives of Poly (Vinyl Acetals);
丁烯醛在聚乙烯醇缩醛胶方面的应用研究
polyvinyl formal high strength wire coating
聚乙烯醇缩甲醛高强度漆包线漆
straw green epoxy polyvinyl butyral enamel
草绿环氧聚乙烯醇丁缩醛磁漆
Modified Polyvinyl Formal Cement Adhesive by Epoxy Resin
环氧改性聚乙烯醇缩甲醛水泥胶粘剂
THE PREPARATION AND APPLICATION OF MODIFYING POLYVINYL FORMAL ADHESIVE FOR BUILDING ENGINEERING
改性聚乙烯醇缩甲醛胶的合成及应用
PREPARATION OF BAMBOO CHARCOAL/POLYVINYL FORMAL COMPOSITE MATERIAL
竹炭/聚乙烯醇缩甲醛复合材料的制备
Preparation of Novel Polyvinyl Formal Composits
新型聚乙烯醇缩甲醛复合材料的制备
Preparation of Water Soluble Polyacetal by Condensation of Polyvinyl Alcohol with Glyoxal
水溶性聚乙烯醇缩乙二醛胶粘剂的制备
Study on the Factors Affecting Free Formaldehyde in Poly(Vinyl formal) Resin
聚乙烯醇缩醛树脂中残留甲醛含量的影响因素
Kinetic Study on Production of PVB by Alcohol Method
醇法生产聚乙烯醇缩丁醛的动力学研究
testing methods for polyvinyl butyral
聚乙烯缩丁醛试验方法
POLYVINYL ACETAL PAINTS AND AD HESIVES-CALCULATION OF ALDEH YDE AMOUNT AND DETERMINATION OF ACETAL LEVEL
聚乙烯醇缩醛类涂料、粘合剂生产中醛用量的计算及缩醛度的测定
Study on Processing Technology and Property of PVB Film
聚乙烯醇缩丁醛薄膜加工工艺及性能的研究
Process Developent of PVB Power Production in Homogeneous Phase Method;
均相法生产聚乙烯醇缩丁醛干粉工艺开发