全氘代聚乙烯泡沫的制备与表征

李新娟; 单雯雯; 贾献彬; 罗炫; 杜凯; 张林

全氘代聚乙烯泡沫的制备与表征

李新娟¹,
单雯雯²,
贾献彬^1,3,,
罗炫³,
杜凯³,
张林³

1.
河南师范大学化学与环境科学学院,河南新乡453007
2.
华北水利水电学院数学与信息科学学院,河南郑州453001
3.
中国工程物理研究院激光聚变中心,四川绵阳621900

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出版历程
- 收稿日期: 1899-12-31
- 修回日期: 1899-12-31
- 刊出日期: 2011-10-19

Fabrication and Characterization of Porous Perdeuterated Polyethylene Foams

1.
College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China
2.
College of Mathematics and Information Science, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 453001, China
3.
Research Centre of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919(987), Mianyang 621900, China

摘要

摘要: 全氘代聚乙烯泡沫具有较高D/C值（因为C—D键比C—H键有更大的裂解能，因而更加稳定），是激光惯性约束聚变（ICF）实验中急需的靶材料。采用聚合物溶液的热致相分离技术，首次通过冷冻干燥制备出具有开放状网络孔洞结构的低密度氘代聚乙烯泡沫，并研究了泡沫制备过程中影响结构的因素。采用扫描电镜对泡沫结构进行表征，结果表明，在密度为20～60 mg/cm³时，其平均孔径对应为0.2～10 μm。利用固体核磁共振、热重对最终氘代聚乙烯泡沫的氘代率和热稳定性能进行了分析，结果显示，合成的氘代聚乙烯泡沫具有较好的热稳定性和稳定的氘代率。
- 氘代聚乙烯 /
- 热致相分离 /
- 聚乙烯泡沫 /
- 氘代率
Abstract: Fully deuterated polyethylene foam has higher D/C ratio and is urgently in ICF. Deuterated polyethylene foam has been fabricated at the first time by thermally induced phase separation technique and freeze drying technique. The structural morphology of the perdeuterated foam is charactered by SEM, showing its density to be 20-60 mg/cm³, corresponding to the mean pore size of 0.2-10 μm. The results of characterization by solid ¹H NMR and TG, show that the foam has a good thermal stability and a dependable deuteration ratio.
- deuterated polyethylene /
- thermally-induced phase separation /
- polyethylene foam /
- deuterated ratio

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参考文献(12)

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全氘代聚乙烯泡沫的制备与表征

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出版历程

Fabrication and Characterization of Porous Perdeuterated Polyethylene Foams

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