| 天然胶/杜仲胶共混硫化物结晶性对热致形变回复性能的影响 |
| |
| 引用本文： | 刘天琦,杨 凤,方庆红,胡子朗.天然胶/杜仲胶共混硫化物结晶性对热致形变回复性能的影响[J].沈阳化工学院学报,2014(1):47-51. |
| |
| 作者姓名： | 刘天琦 杨 凤 方庆红 胡子朗 |
| |
| 作者单位： | [1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142 [2]安康禾烨生物工程有限公司,陕西安康735000 |
| |
| 摘 要： | 用XRD法分析天然胶/杜仲胶共混硫化胶的结晶性,研究其结晶性对天然胶/杜仲胶共混硫化胶的物理性能和热致形变性能的影响.实验结果表明:随着杜仲胶用量的增加,硫化胶在XRD图谱中的衍射峰强度增大,硫化胶的结晶性增大,硫化胶交联密度有明显减小.定伸应力和拉伸强度随杜仲胶用量的增加而增大,而拉断伸长率减小,热致回复温度降低,试样的最终形变率减小.
|
| 关 键 词： | 杜仲橡胶 天然橡胶 交联密度 结晶性能 热致形变回复温度 |
Synthesis of Expanding Monomer with Spiro Structure and Research of Expansion Properties |
| |
| Affiliation: | ZOU Lin, HONG Zhen, NING Zhi-gao, WANG Chang-song, LIANG Bing ( Shenyang University of Chemical Technology, Shenyang 110142, China) |
| |
| Abstract: | The trihydric alcohol synthetized in laboratory reacted with dibutyltin oxide to generate ex- panding monomer with spiro structure （ 3,9-dihydroxytoluene-3,9-bis （ dimethylethanethial ） - 1,5,7,11 -tetraoxaspiro 5,5 ] undecane）, to solve the adverse effects of volume shrinkage during the curing reaction of epoxy resin. The products were confirmed by IR and NMR characterization. Volume expansion rate of the cationic initiator ring-opening polymerization was 3.16 %, measured with expansion agent. Volume expansion rate of modified epoxy resin with prepolymer was 1. 194 %. |
| |
| Keywords: | expanding monomer prepolymer spiro orthocarbonate expansion rate |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
