合成橡胶工业
閤成橡膠工業
합성상효공업
CHINA SYNTHETIC RUBBER INDUSTRY
2004年
5期
292-296
,共5页
二羟甲基丙酸%聚氨酯-丙烯酸酯离聚物%乳液聚合%平均粒径%粒径分布%黏度
二羥甲基丙痠%聚氨酯-丙烯痠酯離聚物%乳液聚閤%平均粒徑%粒徑分佈%黏度
이간갑기병산%취안지-병희산지리취물%유액취합%평균립경%립경분포%점도
dimethylol propionic acid%polyurethane-acrylate anionomer%emulsion polymerization%average particle size%particle size distribution%viscosity
用甲苯二异氰酸酯、聚己二酸新戊二醇酯多元醇(PDGA)、二羟甲基丙酸(DMPA)和甲基丙烯酸-2-羟乙酯合成了聚氨酯-丙烯酸酯(PUA)离聚物乳液,讨论了DMPA用量对其性能的影响.结果表明,当DMPA与PDGA的摩尔比增大时,PUA离聚物乳液的平均粒径减小,粒径分布变窄,黏度增大,稳定性提高,但DMPA用量过高时,会使具有高表面能的小粒子团聚,从而给PUA离聚物的乳液性能带来负面影响.
用甲苯二異氰痠酯、聚己二痠新戊二醇酯多元醇(PDGA)、二羥甲基丙痠(DMPA)和甲基丙烯痠-2-羥乙酯閤成瞭聚氨酯-丙烯痠酯(PUA)離聚物乳液,討論瞭DMPA用量對其性能的影響.結果錶明,噹DMPA與PDGA的摩爾比增大時,PUA離聚物乳液的平均粒徑減小,粒徑分佈變窄,黏度增大,穩定性提高,但DMPA用量過高時,會使具有高錶麵能的小粒子糰聚,從而給PUA離聚物的乳液性能帶來負麵影響.
용갑분이이청산지、취기이산신무이순지다원순(PDGA)、이간갑기병산(DMPA)화갑기병희산-2-간을지합성료취안지-병희산지(PUA)리취물유액,토론료DMPA용량대기성능적영향.결과표명,당DMPA여PDGA적마이비증대시,PUA리취물유액적평균립경감소,립경분포변착,점도증대,은정성제고,단DMPA용량과고시,회사구유고표면능적소입자단취,종이급PUA리취물적유액성능대래부면영향.
The emulsion of polyurethane-acrylate(PUA) anionomer was prepared by using tolylene diisocyanate,polydimethyltrimethylene glycol adipate( PDGA), dimethylol propionic acid (DMPA) and 2-hydroxyethyl methacrylate. The effects of dosage of DMPA on properties of PUA anionomer were discussed. The results showed that the average particles size of PUA anionomer decreased,the particles size distribution narrowed,the viscosity increased and the stability was improved with the increase of the mole ratio of DMPA/PDGA,but too much DMPA resulted in the agglomeration of very small particles with high surface energy,and caused negative effect on the above properties.
