Recycling of Waste PET: Usage as Secondary Plasticizer for PVC
Recycling of Waste PET: Usage as Secondary Plasticizer for PVC
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DOI：
10.1080/03602550500208228
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发表时间：
2005-10
影响因子：
--
通讯作者：
S. Kilinç;T. B. İyim;S. Emik;S. Özgümüş
中科院分区：
文献类型：
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作者：
S. Kilinç;T. B. İyim;S. Emik;S. Özgümüş
摘要以醋酸锌为催化剂，采用乙二醇（EG）为解聚剂，对消费后水瓶用聚对苯二甲酸乙二酯（PET）薄片进行了醇解反应。在解聚反应中，使用不同重量比的PET/EG。为了获得用作PVC增塑剂的聚酯，使这些含有羟基端基的二醇解产物与等量的含有己二酸（AA）的二酸基团反应。为了获得PVC增塑溶胶，通过使用高速混合器将PVC分散到由邻苯二甲酸二异辛酯（DOP）和聚酯产品组成的增塑剂混合物中（PVC/增塑剂，65/35 w/w）。为了制备增塑剂混合物，以20%、40%、60%DOP的重量比使用聚酯产品。用增塑溶胶制备了增塑PVC片材，测定了其玻璃化转变温度（Tg）、迁移率和力学性能。结果表明，废PET的醇解产物可与DOP一起用作PVC的辅助增塑剂。
Abstract Postconsumer water bottle poly(ethylene terephthalate) (PET) flakes were depolymerized with ethylene glycol (EG) by the glycolysis reaction in the presence of zinc acetate as the catalyst. In the depolymerization reactions, different weight ratios of PET/EG were used. In order to obtain polyesters used as PVC plasticizers, these glycolysis products containing hydroxyl end groups were reacted with an adipic acid (AA)–containing diacid group at equivalent amounts. In order to obtain PVC plastisols, PVC was dispersed into a plasticizers' mixture composed of di-isooctyl phthalate (DOP) and polyester products by using a high-speed mixer (PVC/plasticizers, 65/35 w/w). For the preparation of plasticizer mixture polyester products were used at a weight ratio of 20%, 40%, 60% of DOP. Plasticized PVC sheets were prepared from plastisols and their glass transition temperatures (Tg), migration, and mechanical properties were determined. The results show that the polyester products obtained from glycolysis products of waste PET can be used as secondary plasticizers, with DOP for PVC.