STUDY ON MELTING AND CRYSTALLIZATION OF IRRADIATED PVDF/PEA BLEND

Fu Zhonghua; Mao Xinggen; Xiong Wang; Tang Yuanmin

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STUDY ON MELTING AND CRYSTALLIZATION OF IRRADIATED PVDF/PEA BLEND

更新时间：2023-04-23

- STUDY ON MELTING AND CRYSTALLIZATION OF IRRADIATED PVDF/PEA BLEND
- Journal of Radiation Research and Radiation Processing Vol. 15, Issue 2, Pages: 71-74(1997)
- 作者机构：
  
  1.西南核物理与化学研究所　成都　610003
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Fu Zhonghua, Mao Xinggen, Xiong Wang, et al. STUDY ON MELTING AND CRYSTALLIZATION OF IRRADIATED PVDF/PEA BLEND. [J]. Journal of Radiation Research and Radiation Processing 15(2):71-74(1997)
DOI：

Fu Zhonghua, Mao Xinggen, Xiong Wang, et al. STUDY ON MELTING AND CRYSTALLIZATION OF IRRADIATED PVDF/PEA BLEND. [J]. Journal of Radiation Research and Radiation Processing 15(2):71-74(1997) DOI：

摘要

PVDF/PEA共混物熔融后在冰水中淬火或自然冷却，制得两种不同结晶度的试样，经电子束辐照后，用示差热分析等方法研究它们的熔融与结晶行为。结果表明，自然冷却试样的熔点,T,m,和结晶温度,T,c,随辐照剂量的增加而降低，而熔融热焓Δ,H,f,、结晶度,X,c,和结晶热焓,ΔH,c,随辐照剂量的增加先增加后降低。同一试样的两次升温和降温DSC结果表明，,T,c,和Δ,H,c,不变，而,T,m,、Δ,H,f,和,X,c,都降低；经冰水淬火试样的熔融峰随辐照剂量的增大而逐渐发生熔融峰分裂。

Abstract

In this paper,the samples of PVDF/PEA blend with different crystallinity were made by melting and natural cooling or quenching in ice water. The samples were irradiated by electron beam at different dose. The result of DSC analysis shows that the melting temperature,T,m, and crystallization temperature ,Tc, of the samples by natural cooling decrease with the increase of absorbed dose,but the enthalpy of fussion Δ,H,f, crystallinity ,Xc, and the enthalpy of crystallization ,ΔHc, first increase and then decrease slowly with the increase of absorbed dose. The DSC resultsfor second heating and cooling samples indicate that ,T,m,X,c,ΔH,f, tend todecrease,but the ,T,c, and Δ,H,c, do not change. It is foundthat the melting peaks split in DSC ofirradiated sample of PVDF/PEA blend by quenched in ice water.

关键词

电子束辐射聚偏氟乙烯（PVDF）聚丙烯酸乙酯（PEA）共混物熔融结晶

Keywords

Electron beam radiationPolyvinylidene fluoridePolyethyl acrylateBlendMeltingCrystallization

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