CIESC Journal ›› 2011, Vol. 62 ›› Issue (5): 1466-1470.
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XIE Xubing1,2,GAO Xiaoling1,XU Yunshu1,XU Guangliang2
Online:
Published:
谢续兵,高小铃,许云书,徐光亮
Abstract:
EPDM foam filled with nano-SiO2 was prepared by the radiation chemistry method, and such material was processed by post radiation crosslinking.SEM results indicated that the content of nano-SiO2 was a key factor in microporous EPDM foam.After adding nano-SiO2, the pore distribution became good and the cell diameter decreased.The cell diameter was only 13 μm when SiO2 content was 30 phr.With increasing nano-SiO2 content,tensile strength was improved, and elongation at break increased first and then decreased.There was a maximum value when nano-SiO2 content was 30 phr.Through post radiation crosslinking, tensile strength and elongation of microporous EPDM became obviously better than that without post radiation crosslinking.
Key words: FONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体" lang=EN-US>EPDMFONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-ascii-font-family: Times New Roman, mso-hansi-font-family: Times New Roman, mso-bidi-font-family: Times New Roman, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">;微孔;高强度;纳米二氧化硅;辐射交联
摘要:
采用辐射化学法制备了纳米SiO2填充的三元乙丙橡胶泡沫材料,并对材料进行了后辐射交联处理。扫描电镜结果表明,纳米SiO2用量是影响三元乙丙橡胶泡沫微孔化的关键因素,加入纳米SiO2后,泡孔的分布均匀性提高,胞体直径减小,在SiO2用量为30 phr时胞体直径降至13 μm;力学测试结果表明,随着纳米SiO2用量的增加,材料的拉伸强度逐渐提高;断裂伸长率则先增加后减小,并在用量为30 phr时出现最大值。后辐射交联处理后,与未作后辐射交联试样对比,材料的拉伸强度与断裂伸长率均得到大幅提高。
关键词: FONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体" lang=EN-US>EPDMFONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-ascii-font-family: Times New Roman, mso-hansi-font-family: Times New Roman, mso-bidi-font-family: Times New Roman, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">;微孔;高强度;纳米二氧化硅;辐射交联
XIE Xubing, GAO Xiaoling, XU Yunshu, XU Guangliang. Fabrication of microporous EPDM foam with high strength[J]. CIESC Journal, 2011, 62(5): 1466-1470.
谢续兵, 高小铃, 许云书, 徐光亮. 高强度微孔化三元乙丙橡胶泡沫材料的研制 [J]. 化工学报, 2011, 62(5): 1466-1470.
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