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Method for synthesizing unsaturated polyester resin from allyl glycidyl ether residual liquid and application

A technology of allyl glycidyl ether and polyester resin, which is applied in the field of mechanochemical synthesis technology to achieve the effects of high social value, high quality, excellent bending strength and impact resistance

Active Publication Date: 2019-07-12
ANHUI XINYUAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a method and application of utilizing allyl glycidyl ether raffinate to synthesize unsaturated polyester resin, which solves the recycling problem of allyl glycidyl ether raffinate

Method used

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  • Method for synthesizing unsaturated polyester resin from allyl glycidyl ether residual liquid and application
  • Method for synthesizing unsaturated polyester resin from allyl glycidyl ether residual liquid and application

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1, a kind of method utilizing allyl glycidyl ether raffinate to synthesize unsaturated polyester resin, its synthetic method comprises the following steps:

[0023] Step (1), with phthalic anhydride, terephthalic acid, isophthalic acid, maleic anhydride, fumaric acid, adipic acid, propylene glycol, neopentyl glycol, ethylene glycol, di Glycol is prepared into a mixed reaction system, and the alkyd molar ratio in the mixed reaction system is 0.5:1 to 1.5:1;

[0024] Step (2), put the mixed reaction system obtained through step (1) in the reactor, and then add the allyl glycidyl ether raffinate with an epoxy value of 0.01 to 0.6 mol / 100g into the reactor, wherein The mass fraction of the feeding amount of propyl glycidyl ether raffinate accounts for 10% to 50% of the total feeding amount of the reaction system;

[0025] Step (3), on the basis of step (2), adjust the reaction temperature in the reactor to 150-250°C, keep it warm for 2-3 hours, and measure the a...

Embodiment 2

[0029] Embodiment 2, a kind of method utilizing allyl glycidyl ether raffinate to synthesize unsaturated polyester resin, comprises the steps:

[0030] Step (1): Accurately weigh 10g of allyl glycidyl ether raffinate with an epoxy value of about 0.2eq / 100g, 30g (0.28mol) of diethylene glycol, 30g (0.39mol) of propylene glycol, and 50g of phthalic anhydride (0.3mol), maleic anhydride 25g (0.26mol), fumaric acid 25g (0.22mol), add simultaneously in the 500ml four-neck flask that is equipped with thermometer, nitrogen inlet, reflux condenser and agitator to react, The reaction temperature was gradually increased in the nitrogen flow, and was controlled at 210°C. After the reaction, the acid value of the polyester was controlled at 15 mgKOH / g, and 95 g of styrene was added. Stirring and cooling to obtain the final unsaturated polyester resin A.

[0031] Step (2): 100 parts of resin A obtained from step (1), 4 parts of methyl ethyl ketone peroxide, 1 part of cobalt naphthenate, 30...

Embodiment 3

[0034] Embodiment 3, a kind of method utilizing allyl glycidyl ether raffinate to synthesize unsaturated polyester resin, comprises the steps:

[0035] Step (1): Accurately weigh 10g of allyl glycidyl ether raffinate with an epoxy value of about 0.3eq / 100g, 30g (0.28mol) of diethylene glycol, 40g (0.52mol) of propylene glycol, and 50g of phthalic anhydride (0.3mol), maleic anhydride 30g (0.3mol), fumaric acid 25g (0.22mol), add simultaneously and react in the 500ml four-necked flask that is equipped with thermometer, nitrogen inlet, reflux condenser and stirrer , the reaction temperature is gradually increased in the nitrogen flow, controlled at 190°C, the acid value of the polyester is controlled at 30 mgKOH / g at the end of the reaction, and 80 g of styrene is added. Stir and cool to obtain the final unsaturated polyester resin product B.

[0036] Step (2): In the same manner as in Example 2, the unsaturated polyester resin B was compression-molded.

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Abstract

The invention discloses a method for synthesizing unsaturated polyester resin from an allyl glycidyl ether residual liquid. A mixed reaction system is prepared from phthalic anhydride, terephthalic acid, isophthalic acid, maleic anhydride, fumaric acid, adipic acid, propylene glycol, neopentyl glycol, ethylene glycol and diethylene glycol; the mixed reaction system is put in a reactor, the allyl glycidyl ether residual liquid is added to the reactor, and polyester is obtained after the reaction is completed; styrene and a polymerization inhibitor are added to a diluting kettle in advance and fully stirred, polyester obtained after sufficient reaction is transferred to the diluting kettle, wherein the mass of styrene is 10%-40% of the total feeding mass, and unsaturated polyester resin is obtained after sufficient and uniform mixing. According to the method for effectively synthesizing the unsaturated polyester resin from the allyl glycidyl ether residual liquid and the application, theproblem about recycling of the allyl glycidyl ether residual liquid is solved.

Description

technical field [0001] The invention relates to the technical field of mechanical chemical synthesis technology, in particular to a method for synthesizing unsaturated polyester resin by using allyl glycidyl ether raffinate and the application of the unsaturated polyester resin. Background technique [0002] As we all know, allyl glycidyl ether, also known as 1-allyloxy-2,3-epoxypropylene, is an important chemical raw material. It is used to synthesize coupling agent, fiber modifier, stabilizer of chlorinated organic matter, reactive diluent and modifier of synthetic resin, and also used as electronic coating organic silicon intermediate. [0003] There are two main methods for the synthesis of allyl glycidyl ether: one-step method and two-step oxidation method. The one-step synthesis process is that the raw materials allyl alcohol, epichlorohydrin and sodium hydroxide are added to the reactor at the same time, and allyl glycidyl ether is obtained by one-step reaction. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/676C08G63/78C08L67/06
CPCC08G63/676C08G63/78C08L67/06
Inventor 朱新宝程振朔李大钱黄健王传柱
Owner ANHUI XINYUAN CHEM
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