CAJ | 학술논문

采用喷雾干燥法制备丙烯酸酯可再分散乳胶粉.探讨了干燥温度对丙烯酸酯可再分散乳胶粉性能的影响.结果表明:干燥温度对丙烯酸酯可再分散乳胶粉的外观、粒径、含水率、再分散及成膜性能有较大影响;干燥温度升高,乳胶粉含水率降低;过高温度(160℃)和过低温度(100℃)会使乳胶粒子在干燥过程中形成粒径较大的聚合物颗粒,导致乳胶粉滤渣含量增加,再分散性及成膜性能变差,致密性降低,吸水率提高.
채용분무간조법제비병희산지가재분산유효분.탐토료간조온도대병희산지가재분산유효분성능적영향.결과표명:간조온도대병희산지가재분산유효분적외관、립경、함수솔、재분산급성막성능유교대영향;간조온도승고,유효분함수솔강저;과고온도(160℃)화과저온도(100℃)회사유효입자재간조과정중형성립경교대적취합물과립,도치유효분려사함량증가,재분산성급성막성능변차,치밀성강저,흡수솔제고.
Acrylate re-dispersible latex powders were prepared by spray drying.The influence of drying temperature on the performance of acrylate re-dispersible latex powders was investigated.It has been shown that the drying temperature has great influence on the appearance,particle size,water content,re-dispersibility and film forming ability.As the temperature increases,the water content of the latex pow-ders was decreased.If the temperature is too high(160℃)or too low(100℃),the polymer particle formed will be bigger that will result in the increase of filter residue content and water absorption and the reduction of re-dispersibility,film forming ability and compactness.