合成材料老化与应用
閤成材料老化與應用
합성재료노화여응용
SYNTHETIC MATERIALS AGING AND APPLICATION
2013年
6期
8-11,63
,共5页
环氧大豆油%丙烯酸酯%UV树脂
環氧大豆油%丙烯痠酯%UV樹脂
배양대두유%병희산지%UV수지
epoxidized soybean oil%acrylate%UV-curable resins
分别以丙烯酸羟乙酯(HEA)、季戊四醇三丙烯酸酯PETA、苯酐(PA)和环氧大豆油(ESO)为原料制备了经丙烯酸酯改性的UV大豆油树脂HEAPA-ESO和PETA-ESO;FTIR和1 H NMR分析确认了目标树脂的结构;综合考察了反应时间、催化剂以及温度对PA和ESO环氧基转化率的影响,最佳工艺条件为:对于HEAPA-ESO,以TPP为催化剂、HEA和PA(1.05∶1)在100℃下反应2h,再升温至120℃,然后加入环氧大豆后继续反应5h~6h;对于PETAPA-ESO,以TPP为催化剂、PETA和PA(1.08∶1)在110℃下反应2h,再降温至100℃,然后加入环氧大豆后继续反应5h ~6h。 TPP 用量为1.4%,阻聚剂对甲氧基酚( MEHQ)用量为0.15%。
分彆以丙烯痠羥乙酯(HEA)、季戊四醇三丙烯痠酯PETA、苯酐(PA)和環氧大豆油(ESO)為原料製備瞭經丙烯痠酯改性的UV大豆油樹脂HEAPA-ESO和PETA-ESO;FTIR和1 H NMR分析確認瞭目標樹脂的結構;綜閤攷察瞭反應時間、催化劑以及溫度對PA和ESO環氧基轉化率的影響,最佳工藝條件為:對于HEAPA-ESO,以TPP為催化劑、HEA和PA(1.05∶1)在100℃下反應2h,再升溫至120℃,然後加入環氧大豆後繼續反應5h~6h;對于PETAPA-ESO,以TPP為催化劑、PETA和PA(1.08∶1)在110℃下反應2h,再降溫至100℃,然後加入環氧大豆後繼續反應5h ~6h。 TPP 用量為1.4%,阻聚劑對甲氧基酚( MEHQ)用量為0.15%。
분별이병희산간을지(HEA)、계무사순삼병희산지PETA、분항(PA)화배양대두유(ESO)위원료제비료경병희산지개성적UV대두유수지HEAPA-ESO화PETA-ESO;FTIR화1 H NMR분석학인료목표수지적결구;종합고찰료반응시간、최화제이급온도대PA화ESO배양기전화솔적영향,최가공예조건위:대우HEAPA-ESO,이TPP위최화제、HEA화PA(1.05∶1)재100℃하반응2h,재승온지120℃,연후가입배양대두후계속반응5h~6h;대우PETAPA-ESO,이TPP위최화제、PETA화PA(1.08∶1)재110℃하반응2h,재강온지100℃,연후가입배양대두후계속반응5h ~6h。 TPP 용량위1.4%,조취제대갑양기분( MEHQ)용량위0.15%。
UV-curable resins of HEAPA-ESO and PETA-ESO were prepared via reaction of 2-hydroxyethylacry-late ( HEA) or pentaerythritol triacrylate ( PETA) with phthalic anhydride ( PA) and subsequent reaction with ep-oxidized soybean oil (ESO).Their structures were confirmed by FTIR and 1H NMR.The effect of reaction time, catalyst and temperature on conversion of PA and epoxy groups of ESO was also evaluated.The optimized reaction conditions are listed as follows:for HEAPA-ESO,first HEA was reacted with PA (1.05∶1) under 100℃for 2h,af-ter that ESO was added and the mixture was reacted for another 5h~6h under 120℃;For PETAPA-ESO,PETA was first reacted with PA (1.08∶1) under 110℃for 2h,and then the system was cooled to 100℃and ESO was added to reacted with the mixture for another 5 h~6 h.1.4%TPP was used as catalyst and 0.15%MEHQ as inhibitor.