CAJ | 학술논문

采用界面聚合技术制备了新型光信息记录材料光热敏微胶囊.利用红外光谱技术及热显影技术对光热敏微胶囊的感光特性进行了研究.在傅里叶红外光谱中根据C=C键在1634cm~(-1)处振动吸收峰强度的变化,研究了囊内预聚物TMPTA单体在光引发剂184作用下随曝光时间改变的光固化特性.实验结果表明预聚物TMPTA聚合时,C=C键在1634cm~(-1)处振动吸收峰随曝光时间的延长逐渐变小,即预聚物的固化程度随曝光时间延长逐渐增大.利用热显影技术研究了光热敏微胶囊影密度随曝光时间的变化,研究结果发现随曝光时间的延长显影密度逐渐降低,说明囊内预聚物固化程度的增大加强了对染料前体的包裹作用,从而降低了显影剂与染料前体的结合机会.
채용계면취합기술제비료신형광신식기록재료광열민미효낭.이용홍외광보기술급열현영기술대광열민미효낭적감광특성진행료연구.재부리협홍외광보중근거C=C건재1634cm~(-1)처진동흡수봉강도적변화,연구료낭내예취물TMPTA단체재광인발제184작용하수폭광시간개변적광고화특성.실험결과표명예취물TMPTA취합시,C=C건재1634cm~(-1)처진동흡수봉수폭광시간적연장축점변소,즉예취물적고화정도수폭광시간연장축점증대.이용열현영기술연구료광열민미효낭영밀도수폭광시간적변화,연구결과발현수폭광시간적연장현영밀도축점강저,설명낭내예취물고화정도적증대가강료대염료전체적포과작용,종이강저료현영제여염료전체적결합궤회.
The photo-heat sensitive microcapsule is a new kind of information recording material, which is made by interface polymerization method. Photosensitive properties of microcapsules are studied by infrared spectroscopy technology and thermal imaging technology. The curing characteristics of prepolymer TMPTA induced by initiator 184 are studied according the C=C bond absorption peak changing at 1634cm~(-1) in infrared spectrum with the extension of exposure time. The results show that the absorption peak of C=C bond at 1634cm~(-1) gradually become smaller with the extension of exposure time, when the prepolymer TMPTA polymerize. It also shows that the curing degree of prepolymer gradually become bigger with the extension of exposure time. The development density of microcapsule is studied by the thermal development. The results show that the development density gradually decrease as the exposure time prolonging, and the opportunities of combination between dye precursor and developer is decreased because the cure degree increase of prepolymer increasing strengthen the parcel role for dye precursor.