详细信息

异氰脲酸酯改性MDI及聚氨酯弹性体合成研究    

The Modification of MDI by Isocyanurate and Synthesis of PU Elastomers

文献类型:期刊文献

中文题名:异氰脲酸酯改性MDI及聚氨酯弹性体合成研究

英文题名:The Modification of MDI by Isocyanurate and Synthesis of PU Elastomers

作者:王士才[1];李宝霞[1];王得宁[2]

机构:[1]青岛大学纺织工学院应用化学系,266071;[2]华东理工大学材料科学研究所,上海200237

年份:1997

卷号:12

期号:1

起止页码:19

中文期刊名:聚氨酯工业

外文期刊名:Polyurethane Industry

收录:CSTPCD

语种:中文

中文关键词:异氰脲酸酯;MDI;改性;聚氨酯弹性体;弹性体

外文关键词:Isocyanurate MDI Modification Polyurethane

摘要:在催化剂作用下,MDI自聚生成环状异氰脲酸酯,用此改性MDI合成了聚氨酯弹性体。试验结果表明,MDI在DMP-30催化作用下的自聚产物主要为三聚体异氰脲酸酯;DMP-30浓度为0.8%时,改性MDI的-NCO基含量约为MDI中含量的50%;温度对改性程度的影响不明显,在50℃时改性程度最高;以改性MDI合成的弹性体,其热稳定性和力学性能随改性程度的增加而提高。
In the presence of catalyst,cyclic isocyanurate is prepared from the self-polymeriza-tion of MDI. PU elastomers are prepared from the modified MDl. The results show that the self-polymerization of MDI catalyzed by DMP-3O produces trimer (isocyanurate )mainly; when DMP-3o concentration is 0. 8%, the NCO group content in the modified product is 50% of that in MDI; temperature has little effect on the modification,and the maximun modification degree can be obtained at about 50℃;the greater the content of the modified MDI in the PU elastomer, the better the thermal and mechanical properties of the elastomer.

参考文献:

正在载入数据...

版权所有©华东理工大学 重庆维普资讯有限公司 渝B2-20050021-7 
渝公网安备 50019002500408号 违法和不良信息举报中心