Effects of diffusion of a naturally-derived plasticizer from soft PVC

被引：68
作者：
Calo, Emanuela [1 ,2 ]
Greco, Antonio [1 ]
Maffezzoli, Alfonso [1 ]
机构：
[1] Univ Salento, Dept Engn Innovat, I-73100 Lecce, Italy
[2] ENEA Italian Natl Agcy New Technol Energy & Envir, Adv Phys Technol & New Mat Dept, I-72100 Brindisi, Italy
来源：
POLYMER DEGRADATION AND STABILITY | 2011年 / 96卷 / 05期
关键词：
PVC; Plasticizer; Renewable resource; Cardanol; Diffusion; SHELL LIQUID; POLY(VINYL CHLORIDE); POLYMERIC PLASTICIZER; MELT RHEOLOGY; MIGRATION; BLENDS; PHTHALATE; CARDANOL; RUBBER; TEMPERATURE;
D O I：
10.1016/j.polymdegradstab.2011.02.012
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Soft PVC was obtained by using a new plasticizer, based on cardanol, a renewable resource characterized by chemical and physical properties very close to those of diethylhexyl phthalate (DEHP). Cardanol acetate (CA) was obtained by solvent free esterification of cardanol, and used as secondary plasticizer, by partial substitution of DEHP in soft PVC formulations. Ageing tests were performed in order to study the stability of properties of the soft PVC formulations related to plasticizer diffusion. Tensile properties and hardness changes were used to monitor the macroscopic effects of plasticizer diffusion. Soft PVC obtained by partial substitution of DEHP by CA showed a significant modification of mechanical properties related to a higher plasticizer evaporation during ageing tests. Migration tests confirmed that CA is characterized by a higher diffusivity in soft PVC compared to DEHP. (C) 2011 Published by Elsevier Ltd.
引用
收藏
页码：784 / 789
页数：6
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