Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of inorganic modification polyether polyol

A polyether polyol, inorganic modification technology, applied in the field of preparation of inorganic modified polyether polyol, can solve problems such as unpleasant odor, achieve low temperature and pressure control requirements, good stability, simple reaction process effect

Active Publication Date: 2021-05-14
WANHUA CHEM GRP CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is a problem that is difficult to solve completely in the preparation process of polymer polyol: it will produce unpleasant smell
[0007] Aiming at the problem of polymer polyol odor existing in prior art, a kind of preparation method of new polymer polyol needs to be able to be used for preparing the polymer polyol of low odor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of inorganic modification polyether polyol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of quaternary amino-based polyether polyol: the reaction kettle adopts the lower disk turbine and the upper propeller, and the basic polyether is added into the reaction kettle The molar ratio of F3135 (produced by Wanhua Chemical, functional group degree 3, hydroxyl value 35, weight average molecular weight 5000, ethylene oxide content 14%) to N,N-dimethylaminoacetic acid methyl ester (Aladdin reagent) is 0.95: 1 reactant, add 0.5wt% p-toluenesulfonic acid catalyst in the amount of basic polyether polyol, the reaction temperature is 90°C, during the reaction period, the water produced by the reaction of the system is continuously removed by the diaphragm pump, and the reaction time is 2h. After the first step of reaction, directly add ethyl bromide in a molar ratio of 1.05:1 to the base polyether polyol, and react at 100°C for 2 hours to obtain a quaternary ammonium salt type dispersant.

[0039] Preparation of inorganic modified polyether polyol: the reac...

Embodiment 2

[0041]Preparation of quaternary amino polyether polyol: the reaction kettle adopts the propeller paddle on the lower disc turbine, and adds The amount of F3135 and the reactant of N,N-dimethylaminoacetate molar ratio 0.95:1, add the p-toluenesulfonic acid catalyst of the amount of basic polyether polyol 0.5wt%, reaction temperature 100 ℃, constantly during the reaction The water produced by the reaction of the system is removed by the diaphragm pump, and the reaction time is 2 hours. After the first step of reaction, directly add ethyl bromide in a molar ratio of 1.05:1 to the base polyether polyol, and react at 100°C for 1 hour to obtain a quaternary ammonium salt type dispersant.

[0042] Preparation of inorganic modified polyether polyol: the reaction kettle also adopts the lower disk turbine and the upper propeller, add 100g of dispersant and 500g of basic polyether polyol into the kettle, the reaction temperature is 80°C, and add 400g of silicon dioxide under stirring co...

Embodiment 3

[0044] Preparation of quaternary amino polyether polyol: the reaction kettle adopts the propeller paddle on the lower disc turbine, and adds The amount of F3135 and the reactant of N,N-dimethylaminoacetate molar ratio 0.95:1, add the p-toluenesulfonic acid catalyst of the amount of basic polyether polyol 0.5wt%, reaction temperature 110 ℃, constantly during the reaction The water produced by the reaction of the system is removed by the diaphragm pump, and the reaction time is 2 hours. After the first step of reaction, directly add ethyl bromide in a molar ratio of 1.05:1 to the base polyether polyol, and react at 100°C for 1.5 hours to obtain a quaternary ammonium salt type dispersant.

[0045] Preparation of inorganic modified polyether polyol: the reaction kettle also adopts the lower disk turbine and the upper propeller, add 100g of dispersant and 400g of basic polyether polyol into the kettle, the reaction temperature is 80°C, and add 500g of silicon dioxide under stirrin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of inorganic modified polyether polyol, comprising the following steps: firstly, reacting basic polyether polyol with tertiary amine-containing organic acid and its derivatives under the action of a catalyst to prepare tertiary amine-containing polyol Ether polyol; then react polyether polyol containing tertiary amino group with halogenated alkanes to prepare quaternary ammonium salt type dispersant; finally, disperse the inorganic powder material in the basic polyether under the action of quaternary ammonium salt type dispersant , and finally obtain the inorganic modified polyether polyol. The prepared polyether polyol has the characteristics of no odor, low cost, good stability and the like.

Description

technical field [0001] The present invention relates to a novel preparation method of inorganic modified polyether polyol, specifically to prepare a new type of stabilizer, and use it as a raw material to prepare an odorless, low-cost inorganic modified polyether polyol Alcohol preparation method. Background technique [0002] Traditional polymer polyols, also known as polymer grafted polyether polyols, are an important variety of polyols for polyurethane foams. The initial development of polymer polyols is mainly based on the use in flexible foam formulations to improve the load-bearing properties of foam plastics. , but compared with soft foam polyether, its cost will increase accordingly. [0003] The main reason for the increase in the load-carrying capacity of foamed plastics by adding polymer polyols is the solid content of polymer polyols, so increasing the solid content of polymer polyols can effectively improve the supporting performance of polymer polyols. [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/333C08G65/337C08K3/36
CPCC08G65/33396C08G65/337C08G2650/04C08K3/36
Inventor 刘洋鞠昌迅王明永梁广荣胡展尹力平崔丽娜翟亚楠雷志伟韩慧慧李付国黎源
Owner WANHUA CHEM GRP CO LTD