CAJ | 학술논문

以对苯二甲酸（PTA）与对苯二甲酸回收料按一定的比例混合为原料在复配催化剂作用下合成增塑剂对苯二甲酸二异辛酯（DOTP）。讨论丁同反应条件对合成工艺的影响，确定了最佳工艺路线为：纯PTA质量分数占总原料的10％，醇酸物质的量之比2．4：1催化剂用量0．3％，反应时间6h，反应温度220℃；脱色剂用量为5％，脱色温度80℃，脱色时间1h。按此工艺所制得产品体积电阻率≥9．0×1011Ω·cm。气质联用分析结果表明：对苯二甲酸二异辛酯GC含量高达95．94％。与DOP相比性能优良，耐热性高，具有一定的经济效益。
이대분이갑산（PTA）여대분이갑산회수료안일정적비례혼합위원료재복배최화제작용하합성증소제대분이갑산이이신지（DOTP）。토론정동반응조건대합성공예적영향，학정료최가공예로선위：순PTA질량분수점총원료적10％，순산물질적량지비2．4：1최화제용량0．3％，반응시간6h，반응온도220℃；탈색제용량위5％，탈색온도80℃，탈색시간1h。안차공예소제득산품체적전조솔≥9．0×1011Ω·cm。기질련용분석결과표명：대분이갑산이이신지GC함량고체95．94％。여DOP상비성능우량，내열성고，구유일정적경제효익。
We studied the synthesis of plasticizer DOTP using mixed PTA and PTA waste as raw materials along with compound catalyst. After comparing the effects of different reaction conditions, the optimum synthetic conditions were obtained as follows: the molar ratio 2.4 : 1, the amount of catalyst 0.3 %, reaction time 6 h, reaction temperature 220 ℃ ; the decolourization dosage 5 %, temperature 80 ℃, time 1 h. Under this condition, the yielded product had the volume resistivity of ≥ 9.0 × 1011Ω·cm. GC-MS analysis showed that phthalate dioctyl content was up to 95.94 %. Compared with DOP, the product has excellent performance, higher heat resistance and more economic benefits.