MECHANICAL PROPERTIES OF POLYSTYRENE LOW DENSITY POLYETHYLENE BLENDS
MECHANICAL PROPERTIES OF POLYSTYRENE LOW DENSITY POLYETHYLENE BLENDS
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DOI：
10.1016/0032-3861(73)90143-2
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发表时间：
1973-01-01
期刊：
影响因子：
4.6
通讯作者：
HEIKENS, D
中科院分区：
文献类型：
--
作者：
BARENTSEN, WM;HEIKENS, D
通过应力-应变和冲击测试，导出了聚苯乙烯和低密度聚乙烯共混物的一些力学性能。通过在共混物中加入聚苯乙烯和低密度聚乙烯的接枝共聚物，提高了共混物的强度和冲击性能。假设共聚物在均聚物的界面处充当粘合剂，从而降低屈服时分散的聚合物颗粒周围的应力集中。通过调节共聚物在共混物中的比例，可以使聚苯乙烯-接枝共聚物共混物的冲击强度和模量与商业橡胶改性抗冲聚苯乙烯的冲击强度和模量相当。
Some mechanical properties of blends of polystyrene and low density polyethylene have been derived from stress-strain and impact measurements. The strength and impact properties are improved by adding a graft copolymer of polystyrene and low density polyethylene to the blends. It is assumed that the copolymer acts as an adhesive at the interface of the homopolymers thus decreasing the stress concentrations around the dispersed polymer particles at yield. The impact strength and modulus of polystyrene-graft copolymer blends could be made comparable to those of commercial rubber-modified impact polystyrenes by adjusting the fraction of copolymer in the blend.