林业机械与木工设备
林業機械與木工設備
임업궤계여목공설비
FORESTRY MACHINERY & WOODWORKING EQUIPMENT
2014年
7期
23-25,26
,共4页
肖海湖%张文标%刘际平%张秀青%邱锋利%帅浩坤
肖海湖%張文標%劉際平%張秀青%邱鋒利%帥浩坤
초해호%장문표%류제평%장수청%구봉리%수호곤
低温透明%粉末涂料%动力学方程%热稳定性
低溫透明%粉末塗料%動力學方程%熱穩定性
저온투명%분말도료%동역학방정%열은정성
low-temperature and transparency%powder coating%kinetic equation%thermal stability
采用非等温示差扫描量热法(DSC)研究了环氧-聚酯低温透明粉末涂料体系的固化反应动力学。利用DSC数据,结合Kissinger、Doyle-Ozawa和Crane经验方程建立了该粉末涂料固化的动力学模型。结果表明:①该体系的凝胶温度、固化温度和后固化温度分别为95℃、145℃和175℃。②固化反应的平均表观活化能Ea为67.82 kJ·mol-1,频率因子A为2.92×107,反应级数0.92。③该涂料的分解温度为302℃。
採用非等溫示差掃描量熱法(DSC)研究瞭環氧-聚酯低溫透明粉末塗料體繫的固化反應動力學。利用DSC數據,結閤Kissinger、Doyle-Ozawa和Crane經驗方程建立瞭該粉末塗料固化的動力學模型。結果錶明:①該體繫的凝膠溫度、固化溫度和後固化溫度分彆為95℃、145℃和175℃。②固化反應的平均錶觀活化能Ea為67.82 kJ·mol-1,頻率因子A為2.92×107,反應級數0.92。③該塗料的分解溫度為302℃。
채용비등온시차소묘량열법(DSC)연구료배양-취지저온투명분말도료체계적고화반응동역학。이용DSC수거,결합Kissinger、Doyle-Ozawa화Crane경험방정건립료해분말도료고화적동역학모형。결과표명:①해체계적응효온도、고화온도화후고화온도분별위95℃、145℃화175℃。②고화반응적평균표관활화능Ea위67.82 kJ·mol-1,빈솔인자A위2.92×107,반응급수0.92。③해도료적분해온도위302℃。
The non-isothermal differential scanning calorimetry (DSC) is used to study the curing reaction kinetics of epoxy polyester low-temperature transparent powder coating system. The curing kinetic model of the powder coating system is established with DSC data, based on Kissinger, Doyle-Ozawa and Crane equations. The result shows: ① The gelation temperature, and curing temperature post curing temperature of the system are 95℃, 145℃and 175℃respectively.②The average surface curing reaction activation energy Ea is 67.82 kJ/mol-1, frequency factor A is 2.92×107 and the reaction order n is 0.92.③The decomposition temperature of the coating is 302℃.