Plasticizer compound and preparation method thereof and PVC composite material containing plasticizer compound

A compound and plasticizer technology, which is applied in the preparation of organic compounds, carboxylic acid ester preparation, chemical instruments and methods, etc., to achieve the effects of reducing emissions, reducing color depth, and reducing taste

Active Publication Date: 2020-08-07
JIANGSU SENHE CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, in addition to odor requirements, customers in the preparation of automotive interior materials will also put forward higher performance requirements. For example, plasticizers are more conducive to the preparation of materials during use, reducing excessive requirements for conditions in the preparation process , For example, the color requirements of plasticizers are improved, and it is more necessary to use light-colored substances to improve the aesthetics of the obtained materials. The temperature resistance of the material; and the plasticizers of the series such as CN105237803, CN108218700, CN109503371 that have been applied for at present still have some deficiencies in the color of the plasticizer, the processing conditions of the composite material containing the plasticizer and the temperature resistance of the product.

Method used

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  • Plasticizer compound and preparation method thereof and PVC composite material containing plasticizer compound
  • Plasticizer compound and preparation method thereof and PVC composite material containing plasticizer compound
  • Plasticizer compound and preparation method thereof and PVC composite material containing plasticizer compound

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preparation example Construction

[0040] The second aspect of the present invention provides a method for preparing the plasticizer compound, including four steps of esterification reaction, refining, pressure filtration and molecular distillation.

[0041] Preferably, the preparation method of the plasticizer compound comprises the following steps:

[0042] (1) Esterification reaction: Add alcohols and dianhydrides into the reactor, then add the catalyst, when the temperature rises to 220±10°C, start to pump out the air into the reactor to make the reactor a negative pressure state , when the esterification acid value is less than or equal to 0.1mgKOH / g, continue to turn on the vacuum pump for negative pressure and dealcoholization;

[0043] (2) Refining: Cool the substance in step (1) and add it to alkaline water for neutralization. After neutralization, it will be stripped while heating up. The temperature will rise to 215±10°C and keep stripping for 2.5-4h. filter operation;

[0044] (3) Pressure filtrat...

Embodiment 1

[0056] Embodiment 1 of the present invention provides a plasticizer, and the preparation raw materials are dianhydrides, alcohols, catalysts, alkaline water and filter aids;

[0057] Alcohols are dodecyl alcohol, n-decyl alcohol, and isodecanol, and n-decyl alcohol is purchased from Fengyi Alcohol Industry Co., Ltd., with a carbonyl value of 1.9 mg / kg; the weight ratio of dodecyl alcohol, n-decyl alcohol, and isodecanol 1:1.4:1.2; dianhydrides are phthalic anhydrides with a purity greater than or equal to 99.5%; the weight ratio of alcohols to dianhydrides is 3.5:1;

[0058] The catalyst content is 0.7wt‰ of alcohols; the catalyst is isopropyl titanate;

[0059] The amount of alkaline water is 4wt‰ of the content of alcohols; the alkaline water is 10wt% sodium carbonate aqueous solution;

[0060] The filter aid is diatomite, which is SZ-308; the content of the filter aid is 1‰ of the alcohol content;

[0061] The preparation method of described plasticizer compound comprises...

Embodiment 2

[0067] Embodiment 2 of the present invention provides a kind of plasticizer, and preparation raw material is diacid anhydride substance, alcohol substance, catalyst, alkaline water and filter aid;

[0068] Alcohols are dodecyl alcohol, n-decyl alcohol, and isodecanol, and n-decyl alcohol is purchased from Fengyi Alcohol Industry Co., Ltd., with a carbonyl value of 1.9 mg / kg; the weight ratio of dodecyl alcohol, n-decyl alcohol, and isodecanol 1:1.2:0.8; dianhydrides are phthalic anhydrides with a purity greater than or equal to 99.5%; the weight ratio of alcohols to dianhydrides is 2.5:1;

[0069] The catalyst content is 0.3wt‰ of alcohols; the catalyst is isopropyl titanate;

[0070] The amount of alkaline water is 2wt‰ of the content of alcohols; the alkaline water is 10wt% sodium carbonate aqueous solution;

[0071] The filter aid is diatomite, which is SZ-308; the content of the filter aid is 0.3‰ of the alcohol content;

[0072] The preparation method of the plasticizer...

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Abstract

The invention relates to the technical field related to plasticizers, and particularly provides a plasticizer compound and a preparation method and a PVC composite material containing the plasticizercompound. A first aspect of the invention provides a plasticizer compound. The plasticizer compound is prepared from the following raw materials: a dianhydride substance, an alcohol substance, a catalyst, alkaline water and a filter aid, wherein the alcohol substance comprises n-decanol. The invention mainly provides a light-colored plasticizer, which improves the processability of the plasticizerand a PVC matrix material, improves the temperature resistance of a product obtained by using the plasticizer, reduces the haze and the taste of a composite material, and reduces the discharge amountof VOC gas.

Description

technical field [0001] The invention relates to the technical field related to plasticizers, and more specifically, the invention provides a plasticizer compound, a preparation method and a PVC composite material containing the same. Background technique [0002] With the improvement of the quality of life, the internal control quality of the car is becoming more and more strict. Odor, organic volatilization, and other internal environmental problems in automobiles are precisely one of the most complained by automobile customers. As one of the main raw materials of automotive interior parts, plasticizers contribute greatly to odor and organic volatilization. Therefore, the use of high-quality plasticizers will be the key to low odor and low volatilization. [0003] In addition, in addition to odor requirements, customers in the preparation of automotive interior materials will also put forward higher performance requirements. For example, plasticizers are more conducive to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/12C08L27/06C07C67/08C07C67/48C07C69/80
CPCC08K5/12C07C67/08C07C67/48C08K2201/014C07C69/80C08L27/06
Inventor 丁磊
Owner JIANGSU SENHE CHEM TECH CO LTD
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