Plasticizer composition, resin composition and preparation method thereof
A resin composition and composition technology, applied in the direction of organic chemistry, etc., can solve problems such as quality dissatisfaction, and achieve the effects of excellent physical properties and excellent plasticizing efficiency
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preparation Embodiment 1
[0038] Preparation Example 1: Preparation of DPHP
[0039] To a 3 L four-neck reactor equipped with cooler, condenser, decanter, reflux pump, temperature controller, stirrer, etc. were added 498.0 g of purified phthalic acid (PA), 1,170 g of 2-propane Heptyl alcohol (2-PH) (the molar ratio of PA and 2-PH is 1.0:3.0) and 1.54g (based on 100 parts by weight of PA is 0.31 parts by weight) titanium series catalyst (tetratitanate) as catalyst isopropyl ester (TIPT)) and slowly heated to about 170°C. Produced water started to be generated around about 170°C, and the esterification reaction was performed for about 4.5 hours while continuously adding nitrogen gas at a reaction temperature of about 220°C under atmospheric pressure conditions. The reaction was terminated when its acid value reached 0.01.
[0040] After the reaction is finished, distillation extraction is carried out under reduced pressure for 0.5 hours to 4 hours to remove unreacted raw materials. In order to remove ...
preparation Embodiment 2
[0041] Preparation Example 2: Preparation of TBC
[0042] Using 384 g of citric acid and 580 g of butanol as reaction raw materials, 706 g of tributyl citrate was finally obtained (yield: 98%).
preparation Embodiment 3
[0043] Preparation Example 3: Preparation of TOC
[0044] Using 384 g of citric acid and 1,014 g of 2-ethylhexyl alcohol as reaction raw materials, 1,029 g of tris-2-ethylhexyl citrate was finally obtained (yield: 98%).
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