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Citation: DING Yun-Sheng, ZHANG Zhi-Cheng. Barrier Property to Xylene of Blends of γ-Ray Irradiated HDPE with Polyamide 6[J]. Chinese Journal of Applied Chemistry, ;2004, 21(3): 305-308. shu

Barrier Property to Xylene of Blends of γ-Ray Irradiated HDPE with Polyamide 6

DING Yun-Sheng ^a,b ,
ZHANG Zhi-Cheng ^a,,

1.
a School of Chemistry and Materials, University of Science and Technology of China, Hefei 230026;
2.
b College of Chemistry and Engineering, Hefei University of Technology, Hefei

Corresponding author: ZHANG Zhi-Cheng,
Received Date: 20 March 2003
Available Online: 2 December 2003
Fund Project: 教育部博士点基金(20000035805)资助 (20000035805)

High-density polyethylene(HDPE) was oxidized in oxygen atmosphere under γ-ray irradiation to give γ-HDPE, which was then blended with polyamide 6(PA-6). The aggregation structure of γ-HDPE/PA-6 blends and the relationships between the blend structure and its barrier property have been studied by SEM, DSC and TGA. The SEM results show that the γ-irradiation changes the compatibility of PA-6 with γ-HDPE, and in all blends studied 7γ-HDPE/PA-6 has the best compatibility. The results of DSC show that the interaction between the chains of γ-HDPE and PA-6 are affected by the HDPE chain structure, and the strongest interaction occurs in 7γ-HDPE/PA-6 blend. The increase of the compatibility and chain interaction in 7γ-HDPE/PA-6 blend lead its better barrier property to xylene than HDPE, HDPE/PA-6 and others γ-HDPE/PA-6 blends. The oil absorption ratio of 7γ-HDPE/PA-6 blends decreased about 30% and 26%, respectively, in comparison with pure HDPE and HDPE/PA-6 blend.
- high density polyethylene,
- polyamide 6,
- γ-ray irradiation,
- compatibility,
- blend,
- barrier property
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