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Preparation method of composite vegetable oil-based polyurethane foam material

A polyurethane foam and vegetable oil-based technology, which is applied in the field of polyurethane foam materials, can solve the problems of polyurethane foam materials being easy to burn, achieve good degradability, reduce greenhouse gas emissions, and reduce the use of the effect

Pending Publication Date: 2020-08-11
卜乐乐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention: Aiming at the problem that the existing polyurethane foam material is easy to burn, a preparation method of the composite vegetable oil-based polyurethane foam material is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In parts by weight, weigh 40 parts of sesame oil, 24 parts of maleic anhydride, 32 parts of glycerol, 8 parts of sodium hydroxide, 20 parts of anhydrous calcium chloride, and 8 parts of deionized water, and add maleic anhydride In the sesame oil, pass nitrogen protection at a rate of 40mL / min, stir and react at 240r / min under the condition of 200°C for 2h to obtain maleic anhydride modified sesame oil, add glycerol and sodium hydroxide to maleic anhydride to modify In the neutral sesame oil, nitrogen protection was introduced at a rate of 60mL / min, and the reaction was stirred at 300r / min at 220°C for 4h to obtain a reaction solution. Deionized water was added to the reaction solution, and a mass concentration of 1% Adjust the pH to 7 with hydrochloric acid, add anhydrous calcium chloride, filter, take the filtrate, and place it under the condition of 160°C and 400KPa for vacuum distillation to obtain sesame oil polyol; then weigh 40 parts of epoxy Soybean oil, 60 parts...

Embodiment 2

[0039] In parts by weight, weigh 50 parts of sesame oil, 30 parts of maleic anhydride, 40 parts of glycerol, 10 parts of sodium hydroxide, 25 parts of anhydrous calcium chloride, and 10 parts of deionized water, and add maleic anhydride In the sesame oil, pass nitrogen protection at a rate of 50mL / min, stir and react at 260r / min for 3h under the condition of 210°C, to obtain maleic anhydride modified sesame oil, add glycerin and sodium hydroxide to maleic anhydride to modify In the neutral sesame oil, nitrogen protection was introduced at a rate of 70mL / min, and the reaction was stirred at a speed of 320 / min at 230°C for 5h to obtain a reaction solution. Deionized water was added to the reaction solution, and a mass concentration of 1% Adjust the pH to 7 with hydrochloric acid, add anhydrous calcium chloride, filter, take the filtrate, and place it under the condition of 170°C and 500KPa for vacuum distillation to obtain sesame oil polyol; then weigh 50 parts of epoxy Soybean ...

Embodiment 3

[0041]In parts by weight, weigh 60 parts of sesame oil, 36 parts of maleic anhydride, 48 parts of glycerol, 12 parts of sodium hydroxide, 30 parts of anhydrous calcium chloride, and 12 parts of deionized water, and add maleic anhydride In the sesame oil, pass nitrogen protection at a rate of 60mL / min, stir and react at 280r / min for 4h under the condition of 220°C, to obtain maleic anhydride modified sesame oil, add glycerol and sodium hydroxide to maleic anhydride to modify In the neutral sesame oil, nitrogen protection was introduced at a rate of 80mL / min, and the reaction was stirred at a speed of 340r / min at 240°C for 6h to obtain a reaction solution. Deionized water was added to the reaction solution, and a mass concentration of 1% Adjust the pH to 7 with hydrochloric acid, add anhydrous calcium chloride, filter, take the filtrate, and place it under the conditions of 180°C and 600KPa for vacuum distillation to obtain sesame oil polyol; then weigh 60 parts of epoxy resin in...

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Abstract

The invention relates to a preparation method of a composite vegetable oil-based polyurethane foam material, and belongs to the technical field of polyurethane foam materials. According to the invention, sesame oil and epoxidized soybean oil are used as raw materials to prepare vegetable oil polyols, then hydrogenated castor oil is added to prepare the composite vegetable oil-based polyurethane foam material, and meanwhile, diphenylmethane diisocyanate is added as a raw material. The reaction activity of the diphenylmethane diisocyanate is high, so that the catalyst usage is reduced, the content of harmful volatile organic compounds in the polyurethane foam is reduced, and the safety of the polyurethane foam is improved. The steam pressure of the diphenylmethane diisocyanate is low, so that the polyurethane foam is very convenient to store, transport and produce, the safety of the production process is improved, the danger coefficient of the polyurethane foam in the production processis reduced, and the polyurethane foam prepared from the diphenylmethane diisocyanate has the advantages of being safe in process technology and good in environmental protection performance.

Description

technical field [0001] The invention relates to a preparation method of a composite vegetable oil-based polyurethane foam material, belonging to the technical field of polyurethane foam materials. Background technique [0002] The full name of polyurethane (PU) is polyurethane, which refers to a class of polymers with overlapping urethane groups on the polymer polymer chain segment. It is generally composed of binary or polyisocyanate and binary Or polyols are obtained by polymerization. Since the number of functional groups of the two main raw materials can be adjusted, PU with different molecular structures can be obtained: when both isocyanate and polyol are difunctional, the prepared PU is a high polymer with a linear structure; Or when there are two raw materials, all or only some of which have more than two active functional groups, the prepared PU is a high polymer with a three-dimensional structure. The molecular structure of PU determines its performance, so PU is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/65C08G18/64C08G18/36C08G18/32C08J9/02C08G101/00
CPCC08G18/3218C08G18/3228C08G18/36C08G18/6446C08G18/6517C08G18/6547C08G18/7671C08G2101/00C08J9/02C08J2375/14
Inventor 卜乐乐
Owner 卜乐乐
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