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采用低密度聚乙烯(LDPE)和线性低密度聚乙烯接枝聚合物(LLDPE-G)为基料,制备了非沥青基高分子自粘防水卷材,研究了LLDPE-G对自粘卷材性能的影响。结果表明,LLDPE-G可以通过提高卷材中高分子片材层表面极性的方法来提高剥离强度,当LDPE和LLDPE-G的质量比为60∶15时,高分子片材层的表面张力可达40 m N/m,卷材的剥离强度可达2.64 m N/mm,拉伸强度、断裂伸长率、低温弯折性等也都符合相关标准的要求。
Based on the low density polyethylene (LDPE) and linear low density polyethylene graft polymer (LLDPE-G) as base materials, self-adhesive non-bitumen waterproofing membrane was prepared. The effects of LLDPE- The impact of performance. The results show that LLDPE-G can improve the peel strength by increasing the surface polarity of the polymer sheet in the coil. When the mass ratio of LDPE to LLDPE-G is 60:15, the surface tension of the polymer sheet can be Up to 40 mN / m, the peel strength of the coil up to 2.64 m N / mm, tensile strength, elongation at break, low temperature bending properties are also in line with the relevant standards.