三聚氰胺-脲醛(MUF)、脲醛(UF)树脂的粘接性能及改性可能性研究

J. Kajaks, A. Kolbins
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引用次数: 3

摘要

两种热固性树脂MUF和UF已被用于桦木单板的胶粘剂。作为树脂改性剂,聚乙烯醇乙酸酯乳液(PVA)、聚乙烯醇丁二醛(PVB)(粉末和溶液)、胶乳、己二酸(Ad)和癸二酸(Seb)被广泛使用。对胶合体系进行了剪切强度、变形性能、弯曲性能和冲击强度测试。用PVB粉、胶乳、己二酸和癸二酸改性的树脂具有较好的粘接性能和弹性。
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The Study of the Adhesive Activity and Modification Possibilities of Melamine-Urea-Formaldehyde (MUF), Urea-Formaldehyde (UF) Resins
Two types of thermosetting resins MUF and UF have been used as glues for birch wood veneer. As resins modifiers polyvinylacetate emulsion (PVA), polyvinylbutiral (PVB) (powder and solution), rubber latex, adipic (Ad) and sebacic (Seb) acids have been utilized. For glued system shear strength and deformation, bending properties and impact strength have been tested. The best properties: adhesive activity and elasticity have been shown by resins modified with PVB powder, rubber latex, adipic and sebacic acids.
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