Acid-resistant heatproof elastic bonding agent and preparation method thereof

An elastic sticky, temperature-resistant technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problem of chemical anti-corrosion materials that cannot take into account acid resistance, temperature resistance, high elasticity and adhesion, etc. problems, to achieve the effects of easy industrial production, good acid resistance and simple preparation process

Active Publication Date: 2016-08-03
CHENGDU GUIBAO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention overcomes the deficiencies of the prior art, and provides an acid-resistant and temperature-resistant elastic adhesive and its preparation method, in order to solve the problem that existing chemical anti-corrosion materials cannot take into account excellent acid resistance, temperature resistance, and high elasticity. and adhesion problems

Method used

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  • Acid-resistant heatproof elastic bonding agent and preparation method thereof
  • Acid-resistant heatproof elastic bonding agent and preparation method thereof
  • Acid-resistant heatproof elastic bonding agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Raw materials of acid-resistant and temperature-resistant elastic adhesive:

[0042] A component raw materials:

[0043]Polyol polymer: 50 parts of hydroxyl-terminated polyester with a molecular weight of 3800, 30 parts of hydroxyl-terminated polyether with a molecular weight of 2500, and 20 parts of hydroxyl-terminated polybutadiene with a molecular weight of 4000;

[0044] Anti-moisture penetration agent: 20 parts of styrene-butadiene rubber, 10 parts of isoprene rubber;

[0045] Filler: 125 parts of kaolin, 100 parts of bentonite, 145 parts of mica powder;

[0046] Cross-linking agent: 3 parts of glycerol;

[0047] Rubber plasticizer: 20 parts naphthenic oil, 125 parts aromatic oil;

[0048] B component raw materials:

[0049] Polyisocyanate: 70 parts of 1,6-hexamethylene diisocyanate, 30 parts of dimethylene phenyl diisocyanate;

[0050] Rubber plasticizer: 15 parts of paraffin oil, 25 parts of rubber oil;

[0051] Catalyst: 0.025 parts of dibutyltin dilaurate...

Embodiment 2

[0054] Raw materials of acid-resistant and temperature-resistant elastic adhesive:

[0055] A component raw materials:

[0056] Polyol polymer: 50 parts of hydroxyl-terminated polyether with molecular weight of 8000, 50 parts of hydroxyl-terminated polyurethane with molecular weight of 2000;

[0057] Anti-moisture penetration agent: 150 parts of butyl rubber, 100 parts of nitrile rubber, 50 parts of petroleum asphalt;

[0058] Filler: 50 parts of silica powder, 150 parts of bentonite, 30 parts of carbon black;

[0059] Crosslinking agent: 0.5 parts of 1,2-propanediol, 1.5 parts of pentaerythritol;

[0060] Rubber plasticizer: 15 parts of naphthenic oil, 5 parts of rubber oil;

[0061] B component raw materials:

[0062] Polyisocyanate: 100 parts of toluene diisocyanate;

[0063] Rubber plasticizer: 20 parts naphthenic oil;

[0064] Catalyst: 0.667 parts of dibutyl tin dioctoate;

[0065] The preparation method of the acid-resistant and heat-resistant elastic adhesive: A...

Embodiment 3

[0067] Raw materials of acid-resistant and temperature-resistant elastic adhesive:

[0068] A component raw materials:

[0069] Polyol polymer: 100 parts of hydroxyl-terminated polyester with a molecular weight of 1000;

[0070] Anti-moisture penetration agent: 30 parts of butyl rubber;

[0071] Filler: 300 parts of kaolin, 200 parts of bentonite, 50 parts of mica powder, 200 parts of carbon black;

[0072] Crosslinking agent: 0.5 parts of 1,6-hexanediol;

[0073] Rubber plasticizer: 150 parts naphthenic oil, 50 parts aromatic oil;

[0074] B component raw materials:

[0075] Polyisocyanate: 50 parts of benzhydryl-4,4'-diisocyanate, 30 parts of tetramethyl diisocyanate; 20 parts of isophorone diisocyanate;

[0076] Rubber plasticizer: 40 parts of paraffin oil;

[0077] Catalyst: 0.04 parts of stannous octoate;

[0078] The preparation method of the acid-resistant and heat-resistant elastic adhesive: add the raw materials of component A into an 80°C vacuum kneader and mi...

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Abstract

The invention discloses an acid-resistant heatproof elastic bonding agent and preparation method thereof. The acid-resistant heatproof elastic bonding agent is composed of a polyol polymer, polyisocyanates, an anti-water vapor osmotic agent, a filling material, a cross-linking agent and an additive. The preparation method comprises the following steps: performing dehydration blending on the polyol polymer, the anti-water vapor osmotic agent, the cross-linking agent, and the rubber plasticizer at the temperature of 100-150 DEG C and a vacuum degree of 0.06-0.09 MPa to obtain a component A; uniformly mixing polyisocyanates, the rubber plasticizer and a catalyst to obtain a component B; mixing the component A and the component B, and then defoaming a mixture to obtain the acid-resistant heatproof elastic bonding agent. The acid-resistant heatproof elastic bonding agent is solidified at room temperature or low temperature, compared with other anti-corrosion materials, the acid-resistant heatproof elastic bonding agent has excellent acid and corrosion-resistant performance, high temperature resistance performance, high elasticity and cementability, the preparation method has the advantages of simple process and convenient construction, generation of small molecular substances during a solidification process is prevented, and the acid-resistant heatproof elastic bonding agent can be taken as an acid-resistant heatproof elastic material for being widely used in chemical anti-corrosion field.

Description

technical field [0001] Embodiments of the present invention relate to the field of polymer materials, and more specifically, embodiments of the present invention relate to an acid-resistant and temperature-resistant elastic adhesive and a preparation method thereof. Background technique [0002] After more than one hundred years of rapid development of the chemical industry, the ensuing chemical pollutants are increasingly harmful to the environment. Chemical plants will inevitably produce waste gas, waste liquid, waste residue and other pollutants in the production process. After a series of chemical and physical methods, a large amount of acidic liquid with high temperature will be produced, and most of them are mixed acid liquid. Very corrosive. In addition, chemical equipment usually operates dynamically, which inevitably produces a certain degree of mechanical vibration. Therefore, the medium in direct contact with it operates in a dynamic environment with high corrosi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/08C09J175/14C09J11/08C09J11/04C09J11/06
Inventor 毛俊轩潘林黄强熊婷周文亮王有治
Owner CHENGDU GUIBAO SCI & TECH
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