Polyester plasticizer as well as preparation method and application thereof

A kind of ester plasticizer, technology of plasticizer

Inactive Publication Date: 2015-09-23
SHANDONG YANHAI CONSTR RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dibasic fatty acid plasticizers and polyol plasticizers are environmentally friendly plasticizers with good performance. They have the advantages of high plasticizing efficiency and good low temperature resistance, but these plasticizers are not durable in products. Cannot be used as primary plasticizer

Method used

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  • Polyester plasticizer as well as preparation method and application thereof
  • Polyester plasticizer as well as preparation method and application thereof
  • Polyester plasticizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of polyester plasticizer, the steps are as follows:

[0030] (1) 37.19g ethylene glycol, 175.50g adipic acid, 2.54g catalyst p-toluenesulfonic acid and 100g water-carrying agent cyclohexane are added in the there-necked flask equipped with mechanical stirring and water separator, and the control reaction temperature is 80 ~250℃;

[0031] (2) The water generated by the reaction is discharged from the water separator. When the acid value of the reaction system is constant, 219.39g of blocking agent isooctanol is added to the reaction system to continue the reaction. After 10h, the acid value of the reaction system is stable, and the reaction ends;

[0032] (3) the reactant of step (2) is rinsed to pH 10 through 5wt% sodium carbonate solution, and then rinsed with water to neutrality;

[0033] (4) After the liquid in step (3) is dried over anhydrous sodium sulfate, the water-carrying agent cyclohexane and unreacted isooctyl alcohol are evaporated to o...

Embodiment 2

[0037] A preparation method of polyester plasticizer, the steps are as follows:

[0038] (1) 62.07g ethylene glycol, 292.28g adipic acid, 3.54g catalyst p-toluenesulfonic acid and 250g water-carrying agent cyclohexane are added in the there-necked flask equipped with mechanical stirring and water separator, and the control reaction temperature is 80 ~250℃;

[0039] (2) The water generated by the reaction is discharged from the water separator. When the acid value of the reaction system is constant, 273.54g of blocking agent isooctanol is added to the reaction system to continue the reaction. After 10h, the acid value of the reaction system is stable, and the reaction ends;

[0040] (3) The reactant of step (2) is rinsed to pH 10 through 5wt% sodium hydroxide solution, and then rinsed with water to neutrality;

[0041] (4) After the liquid of step (3) is dried through anhydrous sodium sulfate, evaporate water-carrying agent cyclohexane and unreacted isooctyl alcohol, obtain 47...

Embodiment 3

[0045] A preparation method of polyester plasticizer, the steps are as follows:

[0046] (1) 81.30g diethylene glycol, 235.12g adipic acid, 2.35g catalyst p-toluenesulfonic acid and 200g water-carrying agent cyclohexane are added in the there-necked flask equipped with mechanical stirring and water separator, and the control reaction temperature is 80~250℃;

[0047] (2) The water generated by the reaction is discharged from the water separator. When the acid value of the reaction system is constant, 270.46g of blocking agent isooctanol is added to the reaction system to continue the reaction. After 10h, the acid value of the reaction system is stable, and the reaction ends;

[0048] (3) Add solid sodium carbonate to the reactant of step (2), then rinse it with water to neutrality;

[0049](4) After the liquid of step (3) is dried through anhydrous magnesium sulfate, evaporate water-carrying agent cyclohexane and unreacted isooctyl alcohol, obtain 471.42g product, productive r...

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Abstract

The invention belongs to the field of high molecular materials, and particularly relates to a polyester plasticizer as well as a preparation method and application thereof. The polyester plasticizer is prepared by connecting two binary acid molecules through dihydric alcohol, and then carrying out esterification to form a double dibasic acid ester plasticizer. The polyester plasticizer is novel in structure; more ester bonds are contained in the molecules, so that the durability of the polyester plasticizer in a material can be relatively high; moreover, the polyester plasticizer is high in flash point and stability, environmentally friendly, non-toxic, and more applicable to the field of PVC products as a main plasticizer.

Description

technical field [0001] The invention relates to a plasticizer, in particular to a polyester plasticizer, a preparation method and application thereof, and belongs to the field of polymer materials. Background technique [0002] Plasticizer is one of the necessary additives for the processing of polymer materials. For a long time, plasticizers have mainly been phthalic acid products, especially DOP (di(2-ethylhexyl) phthalate) and DBP (dibutyl phthalate). As phthalates are widely used in food, medicine and other industries, people pay more and more attention to its toxicity. Studies have shown that DOP / DBP can enter the human body through mouth, respiratory tract, intravenous infusion, skin absorption and other ways, and can produce toxic effects on multiple systems of the body. In recent years, many countries and EU organizations have issued a number of laws and regulations restricting and banning the use of various phthalates in certain fields. Therefore, the development...

Claims

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Application Information

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IPC IPC(8): C07C67/08C07C69/44C07C69/80C08K5/11C08K5/12C08L27/06
CPCC07C67/08C07C69/44C07C69/80C08K5/11C08K5/12C08L27/06
Inventor滕福爱徐古月
OwnerSHANDONG YANHAI CONSTR RESOURCES