Vegetable oil-based flame-retardant polyol and its preparation method and application

A technology of flame-retardant polyols and oil-based polyols, which is applied in the direction of organic chemistry, can solve the problems of poor flame-retardant performance, reduced flame-retardant durability, and large additions, and achieves low cost, no three wastes, and The effect of simple process

Active Publication Date: 2017-08-29
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional flame retardants are divided into additive flame retardants and reactive flame retardants. Additive flame retardants are added in a relatively large amount, and the flame retardant performance is not very good, and the disadvantage of additive flame retardants is that they last for a long time. Easy to migrate out, reducing the durability of flame retardant

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
  • Vegetable oil-based flame-retardant polyol and its preparation method and application
  • Vegetable oil-based flame-retardant polyol and its preparation method and application
  • Vegetable oil-based flame-retardant polyol and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Heat 930 parts by mass of castor oil, 130 parts by mass of Sek, and 0.5 parts by mass of catalyst tetrabutyl titanate to a temperature of 190° C., react for 4 hours, and discharge to obtain a structural flame-retardant castor oil-based polyol, which The hydroxyl value is 221mg / g KOH, and the viscosity at 25°C is 2100mPa·s. Then obtain combined polyol according to the preparation formula of rigid polyurethane foam in Table 1, stir evenly, then mix with isocyanate and stir at high speed for 20-30s at a speed of 3000-3500r / min, pour into a mold, and age for 48h.

Embodiment 2

[0035] Heat 930 parts by mass of castor oil, 520 parts by mass of Sek, and 0.3 parts by mass of catalyst dihydrocarbyl tin oxide to a temperature of 210° C., react for 4 hours, and discharge to obtain a structural flame-retardant castor oil-based polyol, which The hydroxyl value is 358mg / gKOH, and the viscosity at 25°C is 4700mPa·s. Then obtain combined polyol according to the preparation formula of rigid polyurethane foam in Table 1, stir evenly, then mix with isocyanate and stir at high speed for 20-30s at a speed of 3000-3500r / min, pour into a mold, and age for 48h.

Embodiment 3

[0037] Heat 930 parts by mass of castor oil, 780 parts by mass of sek, and 0.2 parts by mass of catalyst ethylene glycol antimony to a temperature of 230° C., react for 2 hours, and discharge to obtain a structural flame-retardant castor oil-based polyol whose hydroxyl The value is 546mg / g KOH, and the viscosity at 25°C is 8500mPa·s. Then obtain combined polyol according to the preparation formula of rigid polyurethane foam in Table 1, stir evenly, then mix with isocyanate and stir at high speed for 20-30s at a speed of 3000-3500r / min, pour into a mold, and age for 48h.

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
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention provides plant oil-based flame-retardant polyol as well as a preparation and an application thereof. The plant oil-based flame-retardant polyol is obtained after tri (2 hydroxyethyl) isocyanurate and vegetable oil have an alcoholysis reaction, wherein the mass fraction of nitrogen is 3.5-7.0%. According to the plant oil-based flame-retardant polyol, a structural modification method is adopted, and an isocyanuric acid ester ring is introduced into a vegetable oil polyol structure and is used for synthesis of flame-retardant high-temperature-resistant polyurethane foam and other polyurethane materials. The plant oil-based flame-retardant polyol is relatively low in cost, simple in process and free of generation of three wastes; the prepared polyurethane hard foam material has higher flame retardancy, and an oxygen index can reach 30%. The plant oil-based flame-retardant polyol has the advantages that a product does not drip during combustion, keeps the shape, has small smoke density and the like and has wide application prospect in building, thermal insulation and certain special situations.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil-based flame-retardant polyols, and mainly relates to vegetable oil-based flame-retardant polyols, a synthesis method thereof, and applications in flame-retardant polyurethane foams and other polyurethane materials. Background technique [0002] my country is rich in vegetable oil resources, which are renewable, non-toxic, degradable, and environmentally friendly, and have attracted much attention. In the situation of increasingly scarce petroleum resources, it is undoubtedly a good method to use vegetable oil as raw material to produce polyols. Vegetable oil polyols produced by many companies such as Bayer in the United States have been sold in the market. [0003] Polyurethane foam is the insulation material with the best performance in the world, and it is also a good sound insulation material. Today, energy conservation and environmental protection are more and more important. Polyuretha...

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 & AuthorityPatents(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/32C08J9/14C07D251/34
CPCC07D251/34C08G18/4208C08G18/678C08J9/141C08J2375/06C08G2110/005
Inventor张猛周永红贾普友
OwnerINST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY