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Polyurethane polyol and preparation method and application thereof

A polyurethane polyol, reaction technology, applied in the field of polyurethane polyol and its preparation, can solve the problems of non-continuous production, low product quality, long reaction time, etc., achieve short reaction time, good dimensional stability, and good fluidity Effect

Active Publication Date: 2019-02-12
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the dependence of the current preparation of polyurethane polyols on petrochemical resources, and green and renewable epoxy vegetable oil resources are introduced; at the same time, the reaction time and energy consumption of flame-retardant polyurethane polyols produced by batch methods are long and energy consumption is high , product quality is not high, can not be produced continuously and a continuous method is proposed, and epoxy vegetable oil and containing phosphorus and chlorine elements are used to prepare flame-retardant polyurethane polyols

Method used

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  • Polyurethane polyol and preparation method and application thereof
  • Polyurethane polyol and preparation method and application thereof
  • Polyurethane polyol and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Take 153g of phosphorus oxychloride dissolved in 400ml of carbon tetrachloride to obtain solution A, take 195g of epichlorohydrin and 6.6g of aluminum chloride and dissolve in 400ml of carbon tetrachloride to obtain mixed solution B, take 74.08g of glycidyl alcohol and 4g of chlorine Aluminum chloride was dissolved in 800ml carbon tetrachloride to obtain mixed solution C, 216g epoxidized soybean oil and 0.06g cesium carbonate were dissolved in 1600ml carbon tetrachloride to obtain mixed solution D, 175g propylene oxide was dissolved in 3200ml carbon tetrachloride to obtain solution e. Wherein the molar ratio of phosphorus oxychloride, epichlorohydrin and glycidol is 1: 2.1: 1, the molar ratio of epoxy group and hydroxyl compound in epoxy vegetable oil is 1: 1.1, epoxy group in epoxy soybean oil The molar ratio of the group to propylene oxide is 1:11; the solution A and the solution B are pumped into the first micro-mixer respectively, and after being fully mixed, they a...

Embodiment 2

[0045] Get 153g of phosphorus oxychloride dissolved in 400ml of carbon tetrachloride to get solution A, get 203.5g of epichlorohydrin and 6.6g of aluminum chloride and dissolve in 400ml of carbon tetrachloride to get mixed solution B, get 96g of glycidyl alcohol and 4g of chlorine Aluminum chloride was dissolved in 800ml carbon tetrachloride to obtain mixed solution C, 308g epoxidized soybean oil and 0.09g cesium carbonate were dissolved in 1600ml carbon tetrachloride to obtain mixed solution D, 145g propylene oxide was dissolved in 3200ml carbon tetrachloride to obtain a solution e. Wherein the molar ratio of phosphorus oxychloride, epichlorohydrin and glycidol is 1: 2.2: 1.3, the molar ratio of epoxy group and hydroxyl compound in epoxy vegetable oil is 1: 1.3, epoxy group in epoxy soybean oil The molar ratio of group and propylene oxide is 1: 10; The volume of four series microchannel reactors of microchannel reaction device, the flow rate of solution A, B, C, D and E, the ...

Embodiment 3

[0047] The difference from Example 1 is that the reaction temperatures of the four microchannel reactors are 80°C, 90°C, 110°C, and 115°C in sequence.

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Abstract

The invention discloses a polyurethane polyol and a preparation method and application thereof. The method comprises the following steps: (1) enabling phosphorus oxychloride, epichlorohydrin, a firstacidic catalyst to react with an inert solvent in a first microchannel reactor to obtain a chloroalkoxyphosphorus compound; (2) enabling the chloroalkoxyphosphorus compound, glycidol, a second acidiccatalyst to react with an inert solvent in a second microchannel reactor to obtain a hydroxy compound; (3) subjecting the hydroxy compound, an epoxy vegetable oil, a basic catalyst, and an inert solvent to a ring opening reaction in a third microchannel reactor to obtain vegetable oil polyol; (4) subjecting the vegetable oil polyol, epoxypropane and an inert solvent to an addition polymerization reaction in a fourth microchannel reactor to obtain the polyurethane polyol. The polyurethane polyol prepared by the invention has the advantages of light color, low viscosity, good fluidity, phosphorus and chlorine elements having flame retardance effects, and can be used for preparing polyurethane flexible foam materials.

Description

technical field [0001] The invention relates to a polyurethane polyol and its preparation method and application. The polyurethane polyol can be used in the preparation of flame-retardant flexible polyurethane foam. Background technique [0002] With the rapid development of modern industry, polyurethane flexible foam has been widely used in aviation, shipbuilding, automobile, construction, chemical industry, electrical appliances and other fields. However, its flammability seriously affects its excellent performance and hinders new markets. development. The United States, Western Europe, Japan and other countries have made strict laws and regulations on flame retardants related to construction, electronics, transportation, entertainment, etc. China has also promulgated a series of regulations in recent years. Therefore, in order to reduce the cost, expand the scope of application of flexible foam, and improve the flame retardancy of foamed plastics, it is a problem to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G101/00
CPCC08G18/36C08G2101/00B01J2219/00795B01J2219/00867B01J2219/00889B01J2219/00894B01J2219/00959C07F9/091B01J19/0093B01J2219/00984B01J2219/00961C08G18/7671C08G18/7607C08G18/7621C08G18/6666C08G18/4288C08L75/04C08L75/08C08G71/04C08L2203/14C08L2201/02C08G2110/0008
Inventor 郭凯方正何伟朱宁孟晶晶邱江凯欧阳平凯
Owner NANJING TECH UNIV
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