The recycling of mixtures of consumer plastics composed of polyethylene and polypropylene was studied in this work an extruder of simple thread. Mixtures with virgin resin were also appraised with the intention of comparing possible alterations. The polypropylene post-consumption used came from the packings of cigarette wallets and the polyethylene from the protection film of cardboard packings. These two types of plastics were chosen because they are in great amount in the residues generated in the municipal district of Santa Cruz do Sul. The samples were prepared in the composition of PE (90w%): PP (10 w%). The addition of a compatibilizer was evaluated in the mixtures with virgin resin as much as for those with post-consumption plastic. The traction tests accomplished showed that the addition of PP in the matrix of PE alters the properties of the mixture because the modulus of elasticity increased in relation to the PE. The addition of a compatibilizer caused an increase in the modulus of elasticity in both studied cases (samples with virgin resin and with recycled); however, a larger alteration is observed for the virgin resin.
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机译：研究了由聚乙烯和聚丙烯组成的消费者塑料混合物的回收是在这项工作中的简单螺纹的挤出机。还具有比较可能的改变的敏锐性树脂的混合物。所用的聚丙烯消耗量来自纸板填料的保护膜的香烟钱包和聚乙烯的填料。选择这两种类型的塑料是因为它们在Santa Cruz Do Sul市中心生成的残留物中。制备样品在PE（90W％）：PP（10W％）的组合物中制备。在具有原始树脂的混合物中评价添加增容剂的添加，以及具有消耗后塑料的那些。完成的牵引试验表明，在PE基质中添加PP改变了混合物的性质，因为弹性模量相对于PE增加。添加增容剂引起了研究的案例中弹性模量增加（具有原始树脂和再循环的样品）;然而，对于原始树脂观察到更大的改变。
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