Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Foaming agent composition as well as preparation method and application thereof

A technology of composition and foaming agent, applied in the field of polyurethane foam materials and foam materials, can solve the problems of shrinkage of foam materials, decrease of cohesion force of foam materials, and great difference in viscosity, etc., and achieve low cost, economic and social benefits. Huge, excellent overall performance effect

Active Publication Date: 2020-12-08
陈凤福
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 3. The amount of water used for all-water foaming is less than the traditional amount of physical foaming agent (physical foaming agent generally accounts for 20-25% of the combined polyether, and the water for full-water foaming only accounts for 3-4% of the combined polyether ), the viscosity of the combined polyether will be very high, which is very different from the viscosity of (multi)isocyanate, which is not conducive to the production of polyurethane foam
[0011] 4. Due to the use of full water foaming with CO 2 Foaming Chemical Blowing Agent, CO 2 The escape velocity and ability are much stronger than the traditional blowing agent HCFC-141b, etc. It will penetrate the cell wall of the foam material and escape to the outside of the foam material, and it is difficult for the air outside the foam material to enter the inside of the foam material, resulting in In a vacuum state, it is easy to cause the foam material to shrink
[0012] 5. Full water foaming due to the reaction of water and (multi) isocyanate to generate CO 2 At the same time, a large amount of biuret will be generated, and the existence of biuret bonds will make the surface of the foam material crisp, thus reducing the adhesion of the foam material

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
  • Foaming agent composition as well as preparation method and application thereof
  • Foaming agent composition as well as preparation method and application thereof
  • Foaming agent composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9 and comparative example 1

[0215] The foaming agent composition A in Examples 1-9 and the foaming agent of Comparative Example 1 were prepared according to the proportions shown in Table 1. In Table 1, the units of numerical values ​​representing the proportions of each raw material are parts by weight. Among the raw materials used in Examples 1-9, polyether 1020D is a glycol polyether, polyether 307, polyether 310 and polyether 305 are optional triol polyethers, selected in Examples 1-7 White granulated sugar was added, and sorbitol was selected to be added in embodiment 8-9. Comparative example 1 is the whipping agent that does not add white granulated sugar or sorbitol.

Embodiment 1

[0217] Weigh 120 grams of pure water, pour it into a three-necked flask, heat up, stir to 50 degrees, add 60 grams of white sugar, stir until the white sugar is completely dissolved until it becomes transparent, then add 320 grams of 1020D polyether, 120 grams of 307 polyether 120 gram plasticizer propylene carbonate, continue to stir 20 minutes, to obtain uniform transparent liquid, stop stirring, measure, obtain 740 gram chemical blowing agents, i.e. blowing agent composition A of the present invention.

[0218] The foaming agent composition A in Examples 2-9 and the foaming agent composition in Comparative Example 1 were prepared according to the preparation method of Example 1.

[0219] Table 1

[0220]

Embodiment 10-17 and comparative example 2

[0222] The blowing agent composition A in Examples 10-17 and the blowing agent of Comparative Example 2 were prepared according to the proportions shown in Table 2. In Table 2, the units of numerical values ​​representing the proportions of each raw material are parts by weight. Compared with the raw materials used in Examples 1-9, the raw materials used in Examples 10-17 and Comparative Example 2 were selected to add polyether polyol, namely polyether 8310. White granulated sugar is selected to be added in embodiment 10-13, and sorbitol is selected to be added in embodiment 14-17. Comparative example 2 is the whipping agent that does not add white granulated sugar or sorbitol.

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
Thermal conductivityaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a foaming agent composition comprising: (a) water; (b) at least one low molecular weight and high functionality polyhydroxyl compound; (c) at least one low viscosity polyether glycol having a viscosity of 100-200 MPa.s as measured at 25 DEG C; (d) optionally, at least one low viscosity polyether triol having a viscosity, measured at 25 DEG C, of 120-300 MPa.s; (e)at least one low viscosity plasticizer having a viscosity, measured at 25 DEG C, of 1-10 MPa.s; (f) optionally, at least one low viscosity polyether polyol having a viscosity, measured at 25 DEG C, of1000-2500 MPa.S; and (g) optionally, at least one low viscosity polyester polyol having a viscosity, measured at 25 DEG C, of 1000-3500 MPa.S. The invention also relates to a preparation method and application of the foaming agent composition.

Description

[0001] This application claims the priority of the Chinese patent application number "2019104931096" filed on June 6, 2019, the entire contents of which are incorporated into this application as a whole. technical field [0002] The present invention relates to the field of foams, and in particular to the field of polyurethane foams. Specifically, the present invention relates to a blowing agent composition, its preparation method and application. In particular, the invention also relates to foams, especially polyurethane foams, obtained from blowing agent compositions. Background technique [0003] Polyurethane rigid foam is an excellent thermal insulation material, and its low thermal conductivity is unmatched by other thermal insulation materials. Therefore, it is used in a huge amount and is more and more widely used, for example, it is used in refrigerators, freezers, cold storage, refrigerated vehicles, heating pipes, water heaters, solar energy, external wall insulat...

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
IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08K5/1565C08J9/02C08G101/00
CPCC08G18/6677C08G18/6611C08G18/4829C08G18/4812C08G18/4804C08G18/42C08G18/4018C08G18/3218C08K5/0016C08K5/1565C08J9/02C08J2375/08C08J2375/04
Inventor 陈凤福
Owner 陈凤福
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com