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Plant oil polyol and preparation and application methods thereof

A technology of vegetable oil polyol and epoxy vegetable oil, which is applied in the field of vegetable oil polyol, can solve the problems of long reaction time, many side reactions, and high energy consumption, and achieve the effects of moderate viscosity, improved strength and dimensional stability, and low energy consumption

Inactive Publication Date: 2019-04-05
SINOPEC YANGZI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the defects of poor quality of vegetable oil polyols, long reaction time, high energy consumption, and many side reactions in the prior art, the present invention provides a vegetable oil polyol, a preparation method and its application

Method used

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  • Plant oil polyol and preparation and application methods thereof
  • Plant oil polyol and preparation and application methods thereof
  • Plant oil polyol and preparation and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Get the potassium hydroxide that accounts for glycerol quality 0.5% and be dissolved in glycerol, then pump into microchannel modular reaction device (micro-mixer is LH25slit-plate type, microstructure reactor is Sandwich type), wherein, adjust the flow rate of the two materials to maintain the molar ratio of styrene oxide and glycerol in the system at 2:1, and keep it at 120°C for 10 minutes; then pump in epoxy soybean oil to make the upper The ring-opened product and epoxidized soybean oil obtained in one step enter the microchannel modular reaction device respectively simultaneously (the micromixer is LH25slit-plate type, and the microstructure reactor is Sandwich type), wherein, the flow rate of epoxidized soybean oil is adjusted so that the open The cyclic reagent glycerin and the epoxy group of epoxidized soybean oil in the system have a molar ratio of 1:1.5, react at 90°C, and finally collect, wash and dry the organic phase in the product to obtain soybean oil pol...

Embodiment 2

[0044] Get the potassium hydroxide that accounts for 2% of the glycerol quality and dissolve it in glycerin, and then pump it into the microchannel modular reaction device (the micromixer is the LH25slit-plate type, and the microstructure reactor is the Sandwich type), wherein, adjust the flow rate of the two materials so that the molar ratio of styrene oxide and glycerol in the system is maintained at 2:1.1, and keep at 130°C for 8 minutes; then pump epoxy cottonseed oil to make the upper The ring-opened product obtained in one step and the epoxy cottonseed oil respectively enter the microchannel modular reaction device (the micro-mixer is LH25slit-plate type, and the microstructure reactor is Sandwich type) respectively, wherein, the flow rate of the epoxy cottonseed oil is adjusted so that the open The cyclic reagent glycerin and the epoxy group of epoxy cottonseed oil in the system have a molar ratio of 1:1, react at 110°C, and finally collect, wash and dry the organic phas...

Embodiment 3

[0046] Get the potassium hydroxide that accounts for 3% of glycerol quality and dissolve in glycerin, then pump into the microchannel modular reaction device (micro-mixer is LH25slit-plate type, microstructure reactor is Sandwich type), wherein, adjust the flow rate of the two materials so that the molar ratio of styrene oxide and glycerol in the system is maintained at 2:1.05, and keep at 80°C for 5min; then pump in epoxy peanut oil to make the previous step The obtained ring-opening product and epoxy peanut oil respectively enter the microchannel modular reaction device (the micro-mixer is LH25slit-plate type, and the microstructure reactor is Sandwich type) respectively, wherein, adjust the flow rate of epoxy peanut oil to make the ring-opening reagent C The molar ratio of the triol to the epoxy group of the epoxidized peanut oil in the system is 1:2, react at 70°C, and finally collect, wash and dry the organic phase in the product to obtain the peanut oil polyol, the hydrox...

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Abstract

The invention discloses a plant oil polyol and preparation and application methods thereof. The preparation method of the plant oil polyol comprises the following steps of (1) simultaneously pumping styrene oxide and ring opening agent into a micro-flow field reactor for ring-opening reaction; (2) pumping epoxy plant oil into the micro-flow field reactor for ring-opening reaction with products obtained in the step (1); (3) collecting the organic phase in the products obtained in the step (2) and performing washing and drying to obtain the plant oil polyol. The preparation method of the plant oil polyol innovatively adopts double ring-opening reactions, skillfully introduces benzene rings and hydroxy into the products, and meanwhile by means of the micro-flow field technology, ensures low energy consumption, high efficiency and low side reaction incidence and meanwhile achieves continuous technological operation to prepare the plant oil polyol in a new structure; the prepared plant oilpolyol is moderate in viscosity, and when applied to preparing polyurethane foam materials, can effectively improve the strength and dimensional stability of foams.

Description

technical field [0001] The invention relates to a vegetable oil polyol, a preparation method and application thereof, and belongs to the field of vegetable oil polyol. Background technique [0002] Polyurethane material is a polymer with repeating structural units of urethane chain segment made by reacting isocyanate and polyol. Among them, the international market of isocyanate tends to be stable, mainly two types of MDI and TDI, the supply and demand tend to be balanced and the production process is relatively perfect; while there are many kinds of polyurethane polyols, the currently dominant polyols in the market are mainly some higher functional polyols. Polyether polyols obtained by reacting hydroxyl compounds and amine compounds with propylene oxide or ethylene oxide, in addition to polyester polyols, modified graft polyether polyols, etc., these polyol products All are downstream products of petroleum, with strong resource dependence, high price and poor process safe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/708C07C67/31C07C41/03C07C43/178C08G18/36B01J19/00
CPCB01J19/0093C07C41/03C07C67/31C08G18/36C07C43/1785C07C69/708
Inventor 季栋方正孙海龙杨爱武
Owner SINOPEC YANGZI PETROCHEM
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