Cooking-resistant modified polyurethane adhesive and preparation method thereof

A technology of polyurethane adhesives and cooking resistance, which is applied in the direction of polyurea/polyurethane adhesives, adhesives, polymer adhesive additives, etc., can solve the problems that polyurethane adhesives cannot be widely used, harmful asbestos to human body, etc., and achieve reduction of human silicosis, Effect of improving retort resistance and good ablation resistance

Pending Publication Date: 2022-05-17
山东格润高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that polyurethane adhesives in the prior art cannot be widely used in high-temperature food packaging environments, and asbestos harmful to human body will be produced during use, and a kind of retort-resistant modified polyurethane adhesive and its preparation method

Method used

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  • Cooking-resistant modified polyurethane adhesive and preparation method thereof
  • Cooking-resistant modified polyurethane adhesive and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0046] A retort-resistant modified polyurethane adhesive. The composition of the retort-resistant modified polyurethane adhesive includes: 23 parts of oxalic acid, 12 parts of diethylene glycol, 14 parts of ethylene glycol, diphenylmethane diiso 9 parts of chlorate ester, 4 parts of ethyl acetate, 22 parts of A-type modified epoxy resin, 5 parts of oxidized starch, 12 parts of deionized water, 7 parts of auxiliary agent, and 6 parts of filler.

[0047] Type A modified epoxy resin includes the following components: 40 parts of epoxy resin, 45 parts of silicone, 15 parts of amino silicone oil, and 4 parts of water;

[0048] Type A modified epoxy resin preparation steps are as follows:

[0049] A1. Put 40 parts of epoxy resin into the reactor and heat to 95°C;

[0050] A2. Take 45 parts of organic silicon for crushing, and take the crushed organic silicon particles for sieving;

[0051] A3. Add the sieved silicone into the reactor, add 4 parts of water, and heat to 120°C;

[0...

Embodiment 2

[0067] A retort-resistant modified polyurethane adhesive. The composition of the retort-resistant modified polyurethane adhesive includes: 23 parts of oxalic acid, 12 parts of diethylene glycol, 14 parts of ethylene glycol, diphenylmethane diiso 9 parts of chlorate ester, 4 parts of ethyl acetate, 22 parts of A-type modified epoxy resin, 23 parts of B-type modified epoxy resin, 5 parts of oxidized starch, 12 parts of deionized water, 7 parts of additives, 6 parts of filler share.

[0068] Type A modified epoxy resin includes the following components: 40 parts of epoxy resin, 45 parts of silicone, 15 parts of amino silicone oil, and 4 parts of water;

[0069] Type A modified epoxy resin preparation steps are as follows:

[0070] A1. Put 40 parts of epoxy resin into the reactor and heat to 95°C;

[0071] A2. Take 45 parts of organic silicon for crushing, and take the crushed organic silicon particles for sieving;

[0072] A3. Add the sieved silicone into the reactor, add 4 pa...

Embodiment 3

[0103] A retort-resistant modified polyurethane adhesive. The composition of the retort-resistant modified polyurethane adhesive includes: 25 parts of oxalic acid, 15 parts of diethylene glycol, 15 parts of ethylene glycol, diphenylmethane diiso 5 parts of chlorate ester, 4 parts of ethyl acetate, 20 parts of A-type modified epoxy resin, 25 parts of B-type modified epoxy resin, 5 parts of oxidized starch, 10 parts of deionized water, 5 parts of additives, 5 parts of filler share.

[0104] Type A modified epoxy resin includes the following components: 40 parts of epoxy resin, 45 parts of silicone, 15 parts of amino silicone oil, and 4 parts of water;

[0105] Type A modified epoxy resin preparation steps are as follows:

[0106] A1. Put 40 parts of epoxy resin into the reactor and heat to 95°C;

[0107] A2. Take 45 parts of organic silicon for crushing, and take the crushed organic silicon particles for sieving;

[0108] A3. Add the sieved silicone into the reactor, add 4 pa...

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Abstract

The invention discloses a steaming and boiling resistant type modified polyurethane adhesive and a preparation method of the steaming and boiling resistant type modified polyurethane adhesive, and belongs to the technical field of adhesives. The cooking-resistant modified polyurethane adhesive is prepared from the following components in parts by mass: 20 to 25 parts of oxalic acid, 10 to 15 parts of diethylene glycol, 10 to 15 parts of ethylene glycol, 8 to 10 parts of diphenylmethane diisochlorate, 3 to 5 parts of ethyl acetate, 20 to 25 parts of A-type modified epoxy resin, 20 to 25 parts of B-type modified epoxy resin, 4 to 6 parts of oxidized starch, 8 to 15 parts of deionized water, 5 to 8 parts of auxiliaries and 5 to 8 parts of filler. By adding the A-type epoxy resin for modification, the steaming and boiling resistance and toughness of the A-type epoxy resin can be effectively improved, and by adding the B-type modified resin for modification, the ablation resistance of the B-type modified resin can be effectively improved. Therefore, the problems of adhesion and reduction of shear strength caused by a high-temperature environment in the use process are further solved, and the cost waste is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a cooking-resistant modified polyurethane adhesive and a preparation method thereof. Background technique [0002] Adhesives are organic or inorganic, natural or synthetic substances that can connect the same kind or two or more homogeneous or heterogeneous parts (or materials) together, and have sufficient strength after curing. [0003] Adhesives in the prior art can be divided into thermosetting type, hot melt type, room temperature curing type, and pressure sensitive type according to the application method; according to the curing form, they can be divided into solvent volatile type, emulsion type, reaction and hot melt type; Sub-classification: single-component, two-component, reactive; With the advancement of science and technology, high-temperature-resistant adhesives are widely used in high-tech fields such as electronics, automobiles, and machinery manufacturing. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J11/04C09J11/08
CPCC09J175/06C09J11/04C09J11/08C08L63/00C08K7/06C08K3/34C08K9/04C08K9/08
Inventor 张中洋尹成勇李鹏纪凯凯梁兴军陈小明
Owner 山东格润高分子材料有限公司
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