买买提江·依米提, 司马义·努尔拉. 固相紫外光接枝对聚丙烯树脂力学性能的影响[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2007, 108(4): 435-438.DOI：
固相紫外光接枝对聚丙烯树脂力学性能的影响
摘要
聚丙烯(PP)的表面非极性
限制了在一些重要领域中的应用.为了提高PP的亲水性
以二苯甲酮(BP)为光引发剂、固相光接枝反应装置为反应器
采用固相紫外光接枝法在PP粒料表面接枝丙烯酸(AA)
研究了PP接枝前后力学性能的变化.结果表明接枝PP的拉伸强度降了1.37 MPa
但断裂伸长率从358.3%增加到396.3%
说明丙烯酸适度接枝对力学性能影响不大
可以提高PP的断裂韧性.
Abstract
The surface of polypropylene(PP) is not-polar that limits its application in some important fields.In order to increase the hydrophility of PP
the effect of grafting on mechanical performance of PP are systematically studied in which acrylic acid(AA) is grafted on to the surface of PP granule by means of photoinitiated solid phase grafting reaction using benzophenone as a photosensitizer in the reaction equipment of solid grafting.Experiment result shows that tensile strength drops 1.37 MPa of the grafted PP
but breaking extension degree increases from 358.3% to 396.3%.This indicates that the effect of moderate grafting of acrylic acid on the mechanical performance is not obvious
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