A kind of preparation method of amino granular cotton

A particle and amino technology, applied in the field of preparation of amino granulated cotton, can solve the problems such as no public use of amino granulated cotton, no reports of amino granulated cotton, poor flame retardancy, poor sound absorption performance, etc. The effect of broadening the scope of use and saving production costs

Active Publication Date: 2021-07-20
PUYANG GREEN FOAM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Granular cotton on the market is generally used for the lining of fragile products and express package filling, but its flame retardancy and sound absorption performance is poor, and its application is relatively single
[0006] At present, there is no public use of amino granule cotton in the market, and there is no relevant report about amino granule cotton in the published literature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of amino granule cotton of the present invention, the detailed steps of this preparation method are as follows:

[0039] a, the preparation of granular cotton resin glue:

[0040] Expressed in parts by weight, the granular cotton resin glue consists of 26 parts of raw materials hydrophilic polyether polyols, 23 parts of polymer polyols, 50 parts of toluene diisocyanate, 2.5 parts of water, 0.16 parts of triethylenediamine solution of 33%, silicon 1.5 parts of grease, 6 parts of dichloromethane and 0.15 parts of catalyst stannous octoate;

[0041] Prepare various raw materials according to the raw material composition ratio of granular cotton resin glue, mix other raw materials except toluene diisocyanate raw materials, after mixing evenly, add toluene diisocyanate while stirring continuously, and stir after adding toluene diisocyanate Evenly, to obtain granular cotton resin glue;

[0042] b. Preparation of modified melamine resin foaming liquid:...

Embodiment 2

[0051] The preparation method of amino granule cotton of the present invention, the detailed steps of this preparation method are as follows:

[0052] a, the preparation of granular cotton resin glue:

[0053] Expressed in parts by weight, the particle cotton resin glue consists of 30 parts of raw materials hydrophilic polyether polyol, 20 parts of polymer polyol, 55 parts of toluene diisocyanate, 4 parts of water, 0.18 part of triethylenediamine solution of 33%, silicon 1.2 parts of grease, 8 parts of dichloromethane and 0.2 part of catalyst stannous octoate;

[0054] Prepare various raw materials according to the raw material composition ratio of granular cotton resin glue, mix other raw materials except toluene diisocyanate raw materials, after mixing evenly, add toluene diisocyanate while stirring continuously, and stir after adding toluene diisocyanate Evenly, to obtain granular cotton resin glue;

[0055] b. Preparation of modified melamine resin foaming liquid:

[00...

Embodiment 3

[0064] The preparation method of amino granule cotton of the present invention, the detailed steps of this preparation method are as follows:

[0065] a, the preparation of granular cotton resin glue:

[0066] Expressed in parts by weight, the granular cotton resin glue consists of 22 parts of raw materials hydrophilic polyether polyols, 28 parts of polymer polyols, 45 parts of toluene diisocyanate, 3 parts of water, 0.15 parts of triethylenediamine solution of 33%, silicon 1.6 parts of grease, 4 parts of dichloromethane and 0.1 part of catalyst stannous octoate;

[0067] Prepare various raw materials according to the raw material composition ratio of granular cotton resin glue, mix other raw materials except toluene diisocyanate raw materials, after mixing evenly, add toluene diisocyanate while stirring continuously, and stir after adding toluene diisocyanate Evenly, to obtain granular cotton resin glue;

[0068] b. Preparation of modified melamine resin foaming liquid:

...

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Abstract

The invention discloses a preparation method of amino granular cotton. Firstly, granular cotton resin glue is made from raw materials such as hydrophilic polyether polyol, polymer polyol, toluene diisocyanate, water, 33% triethylenediamine solution, silicone grease, dichloromethane and catalyst stannous octoate; The modified melamine resin is prepared by heating reaction with formaldehyde as the main raw material, and the obtained modified melamine resin is mixed with the auxiliary agent mixture prepared by the emulsifier, curing agent and foaming agent to obtain the modified melamine resin foaming liquid The foaming solution is foamed in a foaming microwave device to obtain amino particle cotton; finally, the particle cotton and particle cotton resin glue are mixed and stirred in a mixer and pressed into shape to obtain amino particle cotton. Compared with the original amino foam, the amino granule foam of the present invention has significantly improved density, stretching, tearing, dent strength, wear resistance and the like.

Description

[0001] 1. Technical field: [0002] The invention relates to a preparation method of granular cotton, in particular to a preparation method of amino granular cotton. [0003] 2. Background technology: [0004] Amino foam refers to a foam made by foaming a thermosetting resin formed by reacting a compound containing an amido or amino group with formaldehyde. At present, the most widely used amino resin is melamine (melamine and formaldehyde) resin. The foam has the functions of cleaning, heat preservation, heat insulation, flame retardant, sound absorption, noise reduction, etc., but its density, stretching, and indentation are average, and its color is single. [0005] Granular cotton has a large specific surface area, is easy to install, has good design and color appreciation and excellent post-processing. Granular cotton on the market is generally used for the lining of fragile products and the filling of express packaging, but its flame retardancy and sound absorption perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/236C08J9/14C08G12/32C08G18/48C08G18/76C08L75/08C08L61/32C08K5/42C08K5/09C08K5/1539
CPCC08G12/32C08G18/48C08G18/7614C08J9/0023C08J9/0033C08J9/0061C08J9/141C08J9/236C08J2201/03C08J2203/14C08J2361/32C08J2375/08C08J2461/32C08J2475/08C08K5/09C08K5/1539C08K5/42C08K2201/014
Inventor 陈言胜魏兰军蒋凡顺徐莉何利华李金纳刘鹏王信贤郑志勇李慧霞孟凡会
Owner PUYANG GREEN FOAM CO LTD
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