改性SBS装饰胶粘剂的研制
发布时间：2019-01-08 18:06
【摘要】： 装饰胶粘剂是建筑、装修和工业领域中必不可少的一种材料。本课题提出一种以溶剂汽油和丙酮为溶剂,以巯基乙酸接枝SBS为弹性体,以萜烯树脂为增粘剂的改性SBS装饰胶粘剂,该胶粘剂具有初粘力强、粘接强度高、耐久性能优异、工艺性能好、成本低和无毒环保等优点。本课题系统研究了胶粘剂的制备工艺对SBS改性装饰胶粘剂综合性能的影响规律,并建立了粘接接头玻璃化转变温度、剥离强度、吸水率和湿热条件之间的关系。 研究结果表明:巯基乙酸接枝SBS弹性体的反应条件对体系黏度、剪切强度、剥离强度和玻璃化转变温度等有重要的影响。胶粘剂在热老化和湿热老化条件下,玻璃化温度,剥离强度、剪切强度、化学组成、表面形貌和表面碳元素组成等具有时温等效性。不同表面处理方法对胶粘剂粘接强度和耐久性能的提高有重要作用,偶联剂处理的粘接接头中的扩散系数和水分扩散的吉布斯自由能最低,耐久性能最佳。本文建立的胶粘剂玻璃化转变温度、剥离强度、吸水率和老化条件的关系式,可以用来预测不同老化温度和时间下,胶粘剂玻璃化转变温度和剥离强度等性能。
[Abstract]:Decorative adhesives are essential materials in the fields of architecture, decoration and industry. In this paper, a modified SBS decorative adhesive with solvent gasoline and acetone as solvent, mercaptoacetic acid grafted SBS as elastomer and terpene resin as tackifier is proposed. The adhesive has strong initial adhesion, high adhesive strength and excellent durability. Good process performance, low cost and non-toxic environmental protection and other advantages. In this paper, the influence of the preparation process of the adhesive on the comprehensive properties of the SBS modified decorative adhesive was systematically studied, and the relationship between the glass transition temperature, peel strength, water absorption rate and moisture and heat condition of the adhesive joint was established. The results show that the reaction conditions of thioglycolic acid grafted SBS elastomer have important effects on the viscosity, shear strength, peeling strength and glass transition temperature of the system. The glass transition temperature, peeling strength, shear strength, chemical composition, surface morphology and carbon composition of the adhesive are time-temperature equivalent under the condition of thermal aging and hygrothermal aging. Different surface treatment methods play an important role in the improvement of adhesive adhesion strength and durability. The diffusion coefficient and Gibbs free energy of water diffusion are the lowest and the durability is the best in the bonding joints treated with coupling agent. The relationship between glass transition temperature, peeling strength, water absorption and aging conditions can be used to predict the properties of glass transition temperature and peeling strength of adhesive at different aging temperature and time.
【学位授予单位】：大庆石油学院
【学位级别】：硕士
【学位授予年份】：2009
【分类号】：TQ437
本文编号：2404946
[Abstract]:Decorative adhesives are essential materials in the fields of architecture, decoration and industry. In this paper, a modified SBS decorative adhesive with solvent gasoline and acetone as solvent, mercaptoacetic acid grafted SBS as elastomer and terpene resin as tackifier is proposed. The adhesive has strong initial adhesion, high adhesive strength and excellent durability. Good process performance, low cost and non-toxic environmental protection and other advantages. In this paper, the influence of the preparation process of the adhesive on the comprehensive properties of the SBS modified decorative adhesive was systematically studied, and the relationship between the glass transition temperature, peel strength, water absorption rate and moisture and heat condition of the adhesive joint was established. The results show that the reaction conditions of thioglycolic acid grafted SBS elastomer have important effects on the viscosity, shear strength, peeling strength and glass transition temperature of the system. The glass transition temperature, peeling strength, shear strength, chemical composition, surface morphology and carbon composition of the adhesive are time-temperature equivalent under the condition of thermal aging and hygrothermal aging. Different surface treatment methods play an important role in the improvement of adhesive adhesion strength and durability. The diffusion coefficient and Gibbs free energy of water diffusion are the lowest and the durability is the best in the bonding joints treated with coupling agent. The relationship between glass transition temperature, peeling strength, water absorption and aging conditions can be used to predict the properties of glass transition temperature and peeling strength of adhesive at different aging temperature and time.
【学位授予单位】：大庆石油学院
【学位级别】：硕士
【学位授予年份】：2009
【分类号】：TQ437
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