The effects of blend ratio, compatibilization and dynamic vulcanization on permeation of gases through HDPE/EVA blends

被引：16

作者：

John, Biju ^{[1
]}

Thomas, Selvin P. ^{[1
,2
]}

Varughese, K. T. ^{[3
]}

Oommen, Zachariah

Thomas, Sabu ^{[4
]}

机构：

[1] Mahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India

[2] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

[3] Cent Power Res Inst, Bangalore 560080, Karnataka, India

[4] SUNY Albany, Albany, NY 12222 USA

来源：

JOURNAL OF POLYMER RESEARCH | 2011年 / 18卷 / 05期

关键词：

HDPE; EVA; Gas permeation; Selectivity; Compatibilization; Vulcanization; TRANSPORT-PROPERTIES; NATURAL-RUBBER; POLYMER BLENDS; PERMEABILITY; DIFFUSION; SORPTION; MORPHOLOGY; POLYSTYRENE; SOLUBILITY; SEPARATION;

D O I：

10.1007/s10965-010-9512-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effects of blend ratio, compatibilization and vulcanization on the permeability of O-2 and N-2 gas through HDPE/EVA blends were analyzed. As the volume fraction of EVA in the blend increases the permeability increases. The variation in permeability is correlated with the phase morphology. Oxygen exhibits a higher permeability than nitrogen because the "kinetic diameter" of N-2 is greater than that of O-2. The O-2/N-2 selectivity of HDPE is higher than that of EVA and as a result the selectivity decreases with increase in EVA content in the system. The O-2 and N-2 permeabilities decrease and O-2/N-2 selectivity increase upon compatibilization and dynamic vulcanization. The experimental gas permeabilities in HDPE/EVA blends are compared with several theoretical models of permeation.

引用

页码：1101 / 1109

页数：9

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