Fabrication of low density poly(vinylcyclohexane) foams

被引：0
作者：
Xu Y. [1 ]
Luo X. [1 ]
Zhu F. [1 ]
Zhang L. [1 ]
机构：
[1] Research Center of Laser Fusion, China Acad. of Eng. Phys., Mianyang 621900
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 07期
关键词：
Free-drying technique; Inertial confinement fusion; Low density foam; Poly(vinylcyclohexane); Thermally-induced phase separation technique;
D O I：
10.3788/HPLPB20102207.1567
中图分类号：
学科分类号：
摘要：
The preparation of poly(vinylcyclohexane) (PVCH) foam has been investigated via the thermally-induced phase separation technique and the freeze-drying technique. Polystyrene was saturated using heterogeneous hydrogenation techniques to prepare PVCH. Then low density foams were successfully prepared with the cyclohexane/dioxane solvent and a series of PVCH solutions with different concentrations, by the thermally-induced phase separation technique and the freeze-drying technique. The relation between polymer concentration and foam density was analyzed. The results show that polymer concentration has a good linear relationship with the actual density of PVCH foams and there is a fixed difference between the actual density and theoretic density, thus effectual control on the density of foams can be achieved from 0.04 to 0.15 g/cm3. The pore structure of foams was also analyzed. The results show that the average pore size increases and the pore size distribution tends to be uniform with the increase of foam density, and the range of pore radius is from 23.63 μm to 0.83 μm.
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页码：1567 / 1570
页数：3
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