Using TSRC SIS 4113 as the main body of hot block copolymer of SIS-based hot melt pressure sensitive adhesive,two kinds of SIS 4211 and 4411 with high styrene content were blended,and SIS type hot melt pressure sensitive adhesive was prepared by melt mixing method.The influence of different contents of SIS with high styrene on the basic properties,adhesion properties,and rheological properties of hot melt pressure sensitive adhesive was investigated.The research results showed that,(1)With the increase of the ratio of 4211 and 4411,the viscosity of hot melt pressure sensitive adhesive decreased and the softening point increased,while the effect of mixing 4411 changed significantly,the adhesion performance,high-temperature holding power,and shear failure temperature were all significantly improved.(2)The loop tack and 180°peel force after blending 4211 had slight fluctuations,the addition of 4411 had a significant impact on the wetting performance,with a significant decrease in the loop tack and 180°peel force.(3)The rheological curves showed that as the blending ratio increased,the glass transition temperature(Tg)point and flow point gradually increased,and the storage modulus significantly increased,corresponding to the results of the high-temperature holding power test.
关键词
高苯乙烯含量SIS/热熔压敏胶/黏着性能/流变性能
Key words
SIS with high styrene content/hot melt pressure sensitive adhesive/adhesion performance/rheological performance
维普
万方数据