摘要
胶粘剂在日常生活中应用较为广泛,为了降低胶粘剂的生产成本,基于成本管理需求设计了3种胶粘剂,对比分析了大豆胶粘剂、花生胶粘剂和棉籽胶粘剂的物性、耐水性、胶合强度和耐热性能。结果表明,大豆胶粘剂显示为乳白色、花生胶粘剂显示为棕褐色、棉籽胶粘剂显示为棕黄色;胶粘剂 pH 值越大则黏度越高、固体含量相对更小。大豆胶粘剂、花生胶粘剂和棉籽胶粘剂的热分解温度分别为310.1、304.9和254.1℃;3种胶粘剂在干态环境下的胶合强度最大,其次为温水环境,而在沸水环境中的胶合强度最小,3种胶粘剂的胶合强度都高于0.7 MPa,即满足国家Ⅰ类胶合板强度标准要求,且在温水和沸水环境中,棉籽胶粘剂的胶合强度都高于其他两种胶粘剂;在改性处理后,改性胶粘剂的接触角都有不同程度增加,表面能有不同程度减小。
Adhesives are widely used in daily life.In order to reduce the production cost of adhesives,three kinds of adhesives were designed based on cost management requirements.The physical properties,water resistance,adhe⁃sive strength and heat resistance of soybean adhesive,peanut adhesive and cottonseed adhesive were compared and analyzed.The results showed that the soybean adhesive was milky white,the peanut adhesive was brown,and the cot⁃tonseed adhesive was brownish yellow.The higher the pH value of the adhesive,the higher the viscosity and the small⁃er the solid content.The thermal decomposition temperatures of soybean adhesive,peanut adhesive and cottonseed adhesive were 310.1,304.9 and 254.1℃,respectively.The bonding strength of the three adhesives in the dry environ⁃ment is the largest,followed by the warm water environment,and the bonding strength in the boiling water environ⁃ment is the smallest.The bonding strength of the three adhesives is higher than 0.7 MPa,which meets the requirements of the national classI plywood strength standard.In the warm water and boiling water environment,the bonding strength of the cottonseed adhesive is higher than that of the other two adhesives;after the modification treatment,the contact an⁃gle of the modified adhesive increased to varying degrees,and the surface energy decreased to varying degrees.
作者
许新迪
XU Xindi(Yantai Vocational College,Yantai 264670,Shandong China)
出处
《粘接》
2025年第10期5-8,共4页
Adhesion
关键词
成本管理
胶粘剂
设计
物性
耐水性
耐热性
cost management
adhesive
design
physical property
water resistance
heat resistance
