Non-aromatic nucleus structure poly-hexahydrobenzene phthalic anhydride dihydric alcohol ester plasticizer and preparation method thereof

A technology of polyhexahydrophthalic anhydride diethylene glycol ester and hexahydrophthalic anhydride is applied in the field of functional polymer material application assistants, which can solve problems such as carcinogenicity, and achieve the effects of small migration and good product performance.

Inactive Publication Date: 2010-07-14
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the controversy over the toxicity of phthalate plasticizers, the application of many traditional phthalate plasticizers has been limited. For example, studies have shown that phthalate plasticizers such as DOP and DBP Plasticizers may have a potential carcinogenic risk, mainly because the molecular structure contains phthalic acid diesters, and the benzene ring in the s

Method used

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  • Non-aromatic nucleus structure poly-hexahydrobenzene phthalic anhydride dihydric alcohol ester plasticizer and preparation method thereof
  • Non-aromatic nucleus structure poly-hexahydrobenzene phthalic anhydride dihydric alcohol ester plasticizer and preparation method thereof
  • Non-aromatic nucleus structure poly-hexahydrobenzene phthalic anhydride dihydric alcohol ester plasticizer and preparation method thereof

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Embodiment 1

[0020] Add hexahydrophthalic anhydride, diethylene glycol, n-butanol, catalyst tetrabutyl titanate / tetraisopropyl titanate and water-carrying agent cyclohexane and activated carbon raw materials in proportion to the reactor, wherein: hexahydrophthalic anhydride and The mol ratio of diethylene glycol is 1.10: 1, and the mol ratio of n-butanol and hexahydrophthalic anhydride is 0.10: 1, and the addition of tetrabutyl titanate / tetraisopropyl titanate is the molar amount of raw materials (based on the molar amount of hexahydrophthalic anhydride 1‰ of meter). First, feed nitrogen into the system for 20 minutes to drive away the air, heat and stir under normal pressure. Start timing when the temperature rises to 140°C, then heat up, the highest reaction temperature zone is 190°C-200°C, and start timing reaction from 140°C for 5~ After 6 hours, cool slightly, switch the system to decompression reaction, gradually reduce the pressure to a residual pressure of 0.04Mpa under water vapor...

Embodiment 2

[0024] Add hexahydrophthalic anhydride, diethylene glycol, isobutanol, catalyst tetrabutyl titanate / tetraisopropyl titanate and water-carrying agent cyclohexane and activated carbon raw materials in proportion to the reaction kettle, wherein: hexahydrophthalic anhydride and The mol ratio of diethylene glycol is 1.10: 1, and the mol ratio of isobutanol and hexahydrophthalic anhydride is 0.10: 1, and the addition of tetrabutyl titanate / tetraisopropyl titanate is the molar amount of raw materials (based on the molar amount of hexahydrophthalic anhydride 5‰ of the measuring meter). Firstly, nitrogen gas is introduced into the system for 20 minutes to get rid of the air, and heated and stirred under normal pressure. When the temperature rises to 140°C, the timing starts, and then the temperature rises. The highest reaction temperature zone is 190°C-200°C. Start timed reaction at 140°C for 5-6 hours, cool down slightly, switch the system to decompression reaction, gradually reduce th...

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Abstract

The invention relates to non-aromatic nucleus structure poly-hexahydrobenzene phthalic anhydride dihydric alcohol ester plasticizer and a preparation method thereof, belonging to the technical field of the synthesis of low molecular weight polyester compounds of fine chemicals. The invention is prepared by esterifying and polymerizing hexahydrobenzene with dihydric alcohol and n-butyl alcohol with the existing of homogeneous phase composite complex catalyst tetrabutyl titanate or tetraisopropyl titanate catalyst under 140-200 DEG C. The invention meets the requirements of energy conservation and cleaner production, and the prepared product of poly-hexahydrobenzene phthalic anhydride dihydric alcohol ester plasticizer is a novel polyester plasticizer with the characteristics of good compatibility with high polymer material and anti-migratory performance; the polyester plasticizer has the excellent characteristics of good resist-extraction performance, light color, good thermostability and fundamental innocuous performance; the invention is particularly suitable for environmental protection polyvinyl chloride (PVC) plastic product, medical plastic, refrigerator sealing strip, environmental protection PVC cable sheath and can be used as environmental protection assist agent of functional high polymer material for meeting the requirements of oil resistance and anti-migratory performance.

Description

technical field [0001] A polyhexahydrophthalic anhydride glycol ester plasticizer and a preparation method thereof, wherein a polyester plasticizer with migration resistance and excellent compatibility with PVC materials is synthesized by reacting a non-aromatic ring structure dibasic acid with a polyhydric alcohol and its preparation method Preparation. It relates to the technical field of synthesis of low molecular weight polyester compounds of fine chemicals. Specifically, it relates to a polyhexahydrophthalic anhydride glycol ester compound with good solvent extraction resistance, light product color, good thermal stability, environmental protection and non-toxicity, which can be used as an environmentally friendly polyvinyl chloride (PVC) plastic product, Medical plastics, refrigerator sealing strips, environmentally friendly PVC cable sheaths and application additives for functional polymer materials that require oil resistance and migration resistance. Background tec...

Claims

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Application Information

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IPC IPC(8): C08G63/672C08L27/06C08L67/02
Inventor 蒋平平董玉明凌坤华杨秋转沈敏亮费柳月李亚夫
Owner JIANGNAN UNIV
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