Epoxy low-polyether glyceride plasticizer and preparation method thereof

A technology of glyceride and oligoether, which is applied in the field of epoxy oligoether glyceride plasticizer and its preparation, can solve the problems of low molecular weight and easy migration, achieve high flash point, control the degree of polymerization, and high resistance to migration Effect

Active Publication Date: 2021-06-15
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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AI-Extracted Technical Summary

Problems solved by technology

[0003] In order to solve the defects of low molecular weight and easy migration of existing epoxy fatty acid methyl esters and epoxy grease plasti...
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Abstract

The invention relates to an epoxy low-polyether glyceride plasticizer and a preparation method thereof. Grease, glycerol, peroxide, and formic acid or acetic acid are used as raw materials. The preparation method comprises the following steps: firstly, reacting grease with glycerol in the presence of a basic catalyst to prepare di-fatty glyceride or mono-fatty glyceride, then heating and dehydrating to synthesize a mixture rich in mono-ether glyceride and di-ether glyceride, and finally epoxidizing the mixture to obtain the epoxy low-polyether glyceride plasticizer. According to the novel grease-based epoxy plasticizer, the average molecular weight of the epoxy grease plasticizer can be effectively improved, so that the flash point of the plasticizer is improved, and a plasticized product has lower volatility and migration resistance, and the product has better durability.

Technology Topic

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  • Epoxy low-polyether glyceride plasticizer and preparation method thereof
  • Epoxy low-polyether glyceride plasticizer and preparation method thereof
  • Epoxy low-polyether glyceride plasticizer and preparation method thereof

Examples

  • Experimental program(4)

Example Embodiment

[0023] Example 1:
[0024] Ingredients: soybean oil, glycerol, sodium hydroxide, formic acid, hydrogenated water, concentrated sulfuric acid
[0025] The ratio of soybean oil, glycerol is 2% by 2: 1 ingredient and put into the reactor, adding 1% sodium hydroxide in the material of the feedstock, warmed to 190 ° C under nitrogen protection, reflow reaction for 8 hours; add 0.5 % Catalyst, use the distillation device and increase the reaction temperature to 50 ° C etherified to anhydrous production, at which time the product is a mixture of monoether glycerol esters and bisyl glycerides (if etherified The same acetic anhydride is used in whole can be used. The same as the following conventional operation, etc., the amount of hydrolytic acid and the mass of 10% to 50% of the low polyether glycerylate account for 0.5% to 1% of concentrated sulflic acid, Heating to 40 to 60 ° C, 0.9 ~ 1.4 times of hydrogen oxygen, dripped over 40 minutes, and the reaction was 10 to 65 ° C for 3 to 5 hours. After cooling, the water was then removed by alkali washing, water washing, distillation, and the like were obtained. The epoxy oligomerglyceride (content was higher than 80%, the same).

Example Embodiment

[0026] Example 2:
[0027] Ingredients: rapeseed oil, glycerol, potassium hydroxide, 3-chlorine oxide, dichloromethane Download Adobe Reader
[0028] The ratio of rapeseed oil, glycerol is 1.6%. The reactor is added and the reactor is put into the reactor, and the potassium hydroxide from 1.2% of the material oil is added, and the temperature is raised to 180 ° C under nitrogen protection, reflow 10 hours; add addition 0.6% of the catalyst, the distillation device and elevated the reaction temperature to 250 ° C etherified to anhydrous production, at which time the product is a mixture of monoether glycerol esters and bietherglycerides; And, water washing and other conventional amount of 3-chlorine oxide chloroform acid dichloromethane solution, 5 to 4 hours at 30 ° C after 5 ° C, and finally wash, wash, dehydrated by alkaline, washing, dehydration Epoxy oligoether glyceryl products can be obtained.

Example Embodiment

[0029] Example 3:
[0030] Ingredients: oil, glycerol, potassium hydroxide, formic acid, hydrogenated, p-toluenesulfonic acid;
[0031] The ratio of the oil and glycerol according to the amount of material is 3.2.2 is added and the reactor is put into the reactor, and the potassium hydroxide of 1.5% of the material oil is added, and the temperature is warmed to 190 ° C under nitrogen protection, reflow reaction for 9 hours; add 1 % Catalyst, use the distillation device and raise the reaction temperature to 245 ° C etherification to anhydrous production, at which time the product is a mixture of monoether glycerol esters and bisylglycerides; , After washing and other conventional operations, add 10% to 50% to 20% to 50% to p-toluenesulfonic acid by 0.5% to 1%, heated to 40 to 60 ° C, 0.9 ~ 1.4 times, 0.9 ~ 1.4 times. It was dripped in 40 minutes, and the reaction was 10 to 65 ° C for 3 to 5 hours. After cooling the temperature, the water is then passed through alkali washing, water washing, distillation, and the like, the epoxy oligomerglyceride is obtained.
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Description & Claims & Application Information

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