| 新型环保型发泡剂在聚氨酯硬泡中的应用研究 |
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| 引用本文： | 吴蓁,郭青.新型环保型发泡剂在聚氨酯硬泡中的应用研究[J].新型建筑材料,2008(1):42-47. |
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| 作者姓名： | 吴蓁 郭青 |
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| 作者单位： | 1. 上海应用技术学院,上海,200235
2. 上海市建筑科学研究院,上海,200032 |
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| 摘 要： | 通过组合聚醚与聚氨酯硬泡的制备,对发泡剂HFC-365mfc、HFC-365/227和水的发泡效果、泡体结构、与组合聚醚的互溶性及泡体力学性能等进行了研究,并与HCFC-141b进行了比较.研究结果表明,HFC-365mfc、HFC-365/227与组合聚醚均有较好的溶解性与配伍性;在等质量下,两者在聚氨酯中的发泡效果稍差于HCFC-141b;而在等摩尔加入量时,HFC-365/227的泡孔结构较均匀,平均孔径较小,且所制备泡体的拉伸强度较高,断裂伸长率较大;全水发泡所制得的泡体密度较大.
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| 关 键 词： | 环保型发泡剂 聚氨酯硬泡 保温材料 发泡效果 泡体结构 力学性能 环保型 发泡剂 聚氨酯硬泡 应用 研究 polyurethane foam rigid agents research 泡体密度 全水发泡 断裂伸长率 拉伸强度 平均孔径 均匀 泡孔结构 加入量 等摩尔 质量 配伍性 |
| 文章编号： | 1001-702X（2008）01-0042-05 |
| 收稿时间： | 2007-08-22 |
| 修稿时间： | 2007年8月22日 |
Application research of new green-blowing agents in rigid polyurethane foam |
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| WU Zhen,GUO Qing.Application research of new green-blowing agents in rigid polyurethane foam[J].New Building Materials,2008(1):42-47. |
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| Authors: | WU Zhen GUO Qing |
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| Abstract: | The foaming effect,structure of foam,mutual solubility of polyether compounds and bubble mechanical properties of blowing agent HFC-365mfc,HFC-365/227 and water have been studied through the preparation of polyether compounds and rigid polyurethane foam and compared with HCFC-141b. The results show that the solubility and compatibteness of HFC-365mfc, HFC-365/ 227 with polyether compounds are pretty and the foaming effect of HFC-365mfc,HFC-365/227 is slightly inferior to HCFC-141b at equivalent mass,but the bubble structure is more uniform and average bubble size is smaller with HFC-365/227 than HCFC-141b at equivalent molar content. The tensile strength and breaking elongation of foam made by HFC-365/227 are higher. The research also indicated that the density of foam prepared with water as foaming agent alone is higher. |
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| Keywords: | green-blowing agent rigid polyurethane foam thermal insulation material foaming effect bubble structure mechanical property |
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