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Two-ingredient polyurethane adhesive as well as preparation method and application thereof

A two-component polyurethane and adhesive technology, applied in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve problems such as unstable chemical properties, poor vibration resistance, and low bonding strength. Achieve enhanced toughness and anti-aging performance, improve compression resistance, and easy demoulding

Inactive Publication Date: 2018-09-04
安平县三联过滤器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently commercially available adhesives for the sealing of vehicle filter elements have shortcomings such as strong odor, high toxicity, and environmental pollution, and also have defects such as low bonding strength, poor temperature resistance, poor vibration resistance, and unstable chemical properties.

Method used

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  • Two-ingredient polyurethane adhesive as well as preparation method and application thereof
  • Two-ingredient polyurethane adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A two-component polyurethane adhesive, the adhesive includes component A and component B, component B is liquefied MDI, component A and component B are mixed uniformly at a mass ratio of 3:1 to obtain Two-component polyurethane adhesive.

[0047](1) Preparation of component A:

[0048] Polyether polyol: 95 parts polyether polyol 330N;

[0049] Polymer polyol: 3 parts polymer polyol POP36 / 28;

[0050] Cross-linking agent: 1 part propylene glycol;

[0051] Foam stabilizer: 0.1 part;

[0052] Inert silicone oil: 0.1 part of ethyl silicone oil.

[0053] Tertiary amine gel catalyst: 0.1 part catalyst A33;

[0054] Tertiary amine foaming catalyst: 0.1 part of catalyst A1;

[0055] Foaming agent: 0.5 parts of HCFC-141b (a fluorodichloroethane);

[0056] Special silicone oil: 0.1 parts.

[0057] At 25°C, add the above materials into the reaction kettle, stir and mix, and after 2 hours, the product of component A can be obtained.

[0058] (2) Use of two-component polyur...

Embodiment 2

[0062] A two-component polyurethane adhesive, the adhesive includes component A and component B, component B is liquefied MDI, component A and component B are uniformly mixed in a mass ratio of 4:1 to obtain Two-component polyurethane adhesive.

[0063] (1) Preparation of component A:

[0064] Polyether polyol: 77.759 parts polyether polyol 330N;

[0065] Polymer polyol: 15.552 parts polymer polyol POP36 / 28;

[0066] Crosslinking agent: 3.110 parts of ethylene glycol;

[0067] Foam stabilizer: 0.389 parts;

[0068] Inert silicone oil: 0.233 parts of simethicone.

[0069] Tertiary amine gel catalyst: 0.467 parts catalyst A33;

[0070] Tertiary amine foaming catalyst: 0.156 parts of catalyst A1;

[0071] Blowing agent: 2.333 parts of HCFC-141b (a fluorodichloroethane);

[0072] Special silicone oil: 0.001 parts.

[0073] At 20°C, add the above materials into the reaction kettle, stir and mix, and after 2 hours, the product of component A can be obtained.

[0074] (2) Us...

Embodiment 3

[0078] A two-component polyurethane adhesive, the adhesive includes component A and component B, component B is liquefied MDI, component A and component B are uniformly mixed in a mass ratio of 2:1 to obtain Two-component polyurethane adhesive.

[0079] (1) Preparation of component A:

[0080] Polyether polyol: 50 parts polyether polyol 330N;

[0081] Polymer polyol: 28 parts polymer polyol POP36 / 28;

[0082] Cross-linking agent: 6 parts of 1,4-butanediol;

[0083] Foam stabilizer: 2 parts;

[0084] Inert silicone oil: 2 parts simethicone.

[0085] Tertiary amine gel catalyst: 1.8 parts catalyst A33;

[0086] Tertiary amine foaming catalyst: 1.2 parts catalyst A1;

[0087] Blowing agent: 8 parts of HCFC-141b (one fluorodichloroethane);

[0088] Special silicone oil: 1 part.

[0089] At 15°C, add the above materials into the reaction kettle, stir and mix, and after 2 hours, the product of component A can be obtained.

[0090] (2) Use of two-component polyurethane adhes...

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Abstract

The invention relates to a two-ingredient polyurethane adhesive as well as a preparation method and application thereof. The adhesive is prepared from an ingredient A and an ingredient B; after the ingredient A and the ingredient B are uniformly mixed according to a mass ratio of (2 to 20):1, the two-ingredient polyurethane adhesive is obtained, wherein the ingredient A is prepared from polyetherpolyol, polymer polyol, crosslinking agents, foam stabilizing agents, inert silicon oil, tertiary amine gel type catalysts, tertiary amine foaming type catalysts, foaming agents and special silicon oil; the ingredient B is polyisocyanates. When being applied to the vehicle filter core preparation, the two-ingredient polyurethane has excellent performance such as bonding tightness, no dry crack, vibration resistance, high temperature resistance, oil resistance, oxidation resistance, stable chemical property and environment protection; the requirements of the industry standard of the adhesive for vehicle filter core sealing can be further met.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a novel two-component polyurethane adhesive and a preparation method thereof, and also relates to the application of the two-component polyurethane adhesive in vehicle filter elements. Background technique [0002] Polyurethane adhesives refer to adhesives containing urethane groups and isocyanate groups in the molecular chain. Polyurethane adhesive has strong activity and has good adhesion and sealing properties to metal, rubber, glass, ceramics, plastic, wood, fabric, leather and other materials. It is an adhesive with a wide range of applications. adhesive. [0003] Two-component polyurethane adhesives are usually composed of components A and B. This adhesive has the advantages of adjustable performance, high bonding strength, and wide application range. It has become the largest variety of polyurethane adhesives with the largest output biggest product. [0004] The Chine...

Claims

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Application Information

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IPC IPC(8): C09J175/08C08G18/32C08G18/48C08G18/66C08J9/14C08G101/00
CPCC08G18/3206C08G18/4804C08G18/4829C08G18/6674C08G2101/00C08J9/144C08J2203/142C08J2375/08C09J175/08
Inventor 李娜
Owner 安平县三联过滤器材有限公司
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