Method for preparing bio-based flame-retardant polyether glycol by virtue of epoxidized soybean oil

A technology of epoxidized soybean oil and flame-retardant polyether, which is applied in the field of preparation of bio-based flame-retardant polyether polyols, can solve the problems of destroying the physical properties of foam, easy migration, and unsustainable flame-retardant effect, and achieves obvious flame-retardant effect , fast biodegradation, good quality effect

Active Publication Date: 2016-10-12
JURONG NINGWU NEW MATERIAL CO LTD BY SHARES
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, these added flame retardants usually have disadvantages such as easy migration, unsustainable flame retardant effect and damage to the physical properties of the foam.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing bio-based flame-retardant polyether polyols using epoxidized soybean oil, adding 1000 g of epoxidized soybean oil, 200 g of ethylene glycol, and 4.0 g of potassium hydroxide to the reactor, and controlling the temperature at 80-150 °C , reacted for 6 hours to obtain polyhydroxy soybean oil. Then feed propylene oxide at 110°C. After the addition of propylene oxide, stir at 110°C for 3 hours to fully react the system to obtain high-functionality soybean oil-based polyether polyol. Finally, put 1.0 g of triphenylphosphine and 100 g of diethyl phosphate into the reaction kettle, react at 80°C for 5 hours, and filter to obtain the product.

Embodiment 2

[0017] Yet another preparation method of bio-based flame-retardant polyether polyol, using sodium hydroxide as a catalyst, reacting epoxidized soybean oil (1000 g) with propylene glycol (300 g) for 5 hours at 100-160 °C, the polyol has a large number of hydroxyl groups soybean oil. Then, ethylene oxide was introduced at 120° C., stirred and reacted for 4 hours to obtain high-functionality soybean oil-based polyether polyol. Finally, 1.0 g of triphenylphosphine and 120 g of dimethyl phosphate were put into the reaction system, and reacted at 70°C for 6 hours.

Embodiment 3

[0019] Epoxidized soybean oil (1000 g) was reacted with ethanolamine (150 g) under the catalyst of sodium methoxide (2.0 g) for 4 hours to obtain polyamine polyhydroxy soybean oil. After adding 2.0 g of potassium hydroxide, feed a mixture of ethylene oxide and propylene oxide into the reaction system (ethylene oxide: propylene oxide=7:3, v / v), and control the temperature at 100-130 °C, react for 3-6 hours. Then lower the temperature to 60-90°C, add 1.0 g of triphenylphosphine and 150 g of dimethyl phosphate, continue the reaction for 4-6 hours, and obtain bio-based flame-retardant polyether polyol after filtration.

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PUM

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Abstract

The invention discloses a method for preparing bio-based flame-retardant polyether glycol by virtue of epoxidized soybean oil. The polyether glycol is prepared from the following raw materials in parts by weight: 5 to 30 parts of the epoxidized soybean oil, 1 to 10 parts of micromolecular diol or alkylol amine, 0.5 to 2.0 parts of a basic catalyst, 40 to 60 parts of alkylene oxide and 1 to 5 parts of phosphodiester. The method comprises the following steps: performing ring opening reaction on the epoxidized soybean oil and the micromolecular diol or alkylol amine to obtain polyhydroxy soybean oil in the presence of the basic catalyst; reacting the polyhydroxy soybean oil and the alkylene oxide to obtain high-functionality soybean oil-based polyether glycol; reacting a part of OH groups of the soybean oil-based polyether glycol and the phosphodiester to obtain reactive bio-based flame-retardant polyether glycol. The method is simple and easy; polyurethane foam plastic prepared from the flame-retardant polyether glycol has a good flame-retardant effect, high foam quality and slight environmental and ecological influence.

Description

technical field [0001] The invention belongs to a preparation method of an organic polymer compound, in particular to a method for preparing a bio-based flame-retardant polyether polyol by utilizing epoxidized soybean oil. Background technique [0002] Flame-retardant polyether polyols can be divided into two types according to their flame-retardant methods: additive flame-retardant polyether polyols and reactive flame-retardant polyether polyols. Additive flame retardant polyether polyol achieves flame retardant purpose by adding inorganic or organic flame retardant to polyether polyol. However, these added flame retardants usually have disadvantages such as easy migration, unsustainable flame retardant effect and damage to the physical properties of the foam. The characteristic of reactive flame-retardant polyether polyol is that there are flame-retardant groups bonded to the main chain or side chain of the polyol molecule, which has little effect on the physical properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C08G65/335C08G18/50
CPCC08G18/5081C08G65/2609C08G65/3355C08G2110/0083
Inventor 朱雪荣刘青翟洪金应珏唐秉毅王飞于文超周发兰贺凌军
Owner JURONG NINGWU NEW MATERIAL CO LTD BY SHARES
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