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A kind of flame-retardant solvent-free two-component polyurethane structural adhesive and preparation method thereof

A two-component polyurethane, solvent-free technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problems of low practical ratio, slow curing speed, low mechanical strength, etc., and achieve Fast curing speed, excellent flame retardant effect, high reactivity effect

Active Publication Date: 2022-05-27
GUANGZHOU MECHANICAL ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above two two-component polyurethane adhesives have good flame retardant properties, they all have the following disadvantages: 1) slow curing speed; 2) low mechanical strength and weak adhesion; 3) high toxicity and low environmental protection; 4) When the two components are mixed and used, the practicability of the ratio is low

Method used

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  • A kind of flame-retardant solvent-free two-component polyurethane structural adhesive and preparation method thereof
  • A kind of flame-retardant solvent-free two-component polyurethane structural adhesive and preparation method thereof
  • A kind of flame-retardant solvent-free two-component polyurethane structural adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A flame-retardant solvent-free two-component polyurethane structural adhesive, wherein the raw material composition of component A and component B is shown in the following table:

[0055] Table 1 The raw material composition of components A and B in the flame retardant solvent-free two-component polyurethane structural adhesive

[0056]

[0057]

[0058] Note:

[0059] VORANOL 2000LM: Dow, USA;

[0060] CUCAT-RM: Environmental protection catalyst of Guangzhou Yourun Synthetic Materials Co., Ltd.;

[0061] PAPI-135C: Dow, USA.

[0062] The preparation method of the above-mentioned flame retardant solvent-free two-component polyurethane structural adhesive comprises the following steps:

[0063] 1) Pretreatment of raw materials: put ammonium polyphosphate, aluminum hydroxide, molecular sieve, nano-calcium carbonate and fumed silica in an oven, dry at 100°C for 8 hours, take out and cool for use;

[0064] 2) Preparation of component A: add the raw materials in c...

Embodiment 2

[0068] A flame retardant solvent-free two-component polyurethane structural adhesive, wherein the raw material composition of component A and component B is shown in the following table:

[0069] Table 2 The raw material composition of components A and B in the flame-retardant solvent-free two-component polyurethane structural adhesive

[0070]

[0071]

[0072] Note:

[0073] VORANOL 2000LM: Dow, USA;

[0074] CUCAT-RC10A: Environmental protection catalyst of Guangzhou Yourun Synthetic Materials Co., Ltd.;

[0075] PM-200: Wanhua Chemical Group Co., Ltd.

[0076] The preparation method of the above-mentioned flame retardant solvent-free two-component polyurethane structural adhesive comprises the following steps:

[0077] 1) Raw material pretreatment: put ammonium polyphosphate, aluminum hydroxide, magnesium hydroxide and calcium oxide in an oven, dry at 120°C for 4 hours, take out and cool for use;

[0078] 2) Preparation of Component A: add the raw materials in ...

Embodiment 3

[0082] A flame retardant solvent-free two-component polyurethane structural adhesive, wherein the raw material composition of component A and component B is shown in the following table:

[0083] Table 3 The raw material composition of components A and B in the flame-retardant solvent-free two-component polyurethane structural adhesive

[0084]

[0085]

[0086] Note:

[0087] VORANOL 2000LM: Dow, USA;

[0088] CUCAT-S01A: Environmental protection catalyst of Guangzhou Yourun Synthetic Materials Co., Ltd.;

[0089] PM-200: Wanhua Chemical Group Co., Ltd.

[0090] The preparation method of the above-mentioned flame retardant solvent-free two-component polyurethane structural adhesive comprises the following steps:

[0091] 1) Raw material pretreatment: put ammonium polyphosphate, aluminum hydroxide, magnesium hydroxide, calcium oxide, nano-zinc oxide and silicon micropowder in an oven, dry at 110°C for 6 hours, take out and cool for use;

[0092] 2) Preparation of C...

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Abstract

The invention discloses a flame-retardant solvent-free two-component polyurethane structural adhesive and a preparation method thereof. The flame-retardant solvent-free two-component polyurethane structural adhesive of the present invention is composed of component A and component B, and component A includes polyol, chain extender, diluent, flame retardant, foam inhibitor, environmental protection catalyst, Reinforcing fillers and thixotropic agents, component B includes polymeric MDI, diluents, polyols, flame retardants, thixotropic agents, foam inhibitors and reinforcing fillers. The preparation method of the flame-retardant solvent-free two-component polyurethane structural adhesive of the present invention is very simple, and the raw materials in the A component and the B component are uniformly mixed according to the proportion and then packaged separately. The flame retardant solvent-free two-component polyurethane structural adhesive of the invention has the advantages of fast curing speed, high bonding strength, excellent flame retardant performance, low toxicity, safety and environmental protection, and convenient use.

Description

technical field [0001] The invention relates to a flame-retardant solvent-free two-component polyurethane structural adhesive and a preparation method thereof, belonging to the technical field of polyurethane adhesives. Background technique [0002] Two-component polyurethane structural adhesive is one of the many types of polyurethane adhesives, which are divided into solvent-based and solvent-free types. Solvent-free two-component polyurethane adhesive has the following characteristics: 1) 100% solid content, all raw materials are used, no solvent volatilization, and it belongs to energy saving and emission reduction technology; 2) It is a reactive adhesive, after mixing the two components The cross-linking reaction occurs, the initial viscosity is good, the bonding strength is high, and both room temperature curing and heating curing are possible; 3) The two components have good adjustability, and the composition and relative molecular weight of the raw materials can be a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/04C09J11/04C08G18/76C08G18/66C08G18/32C08G18/42C08G18/48C08G18/50C08G18/54
CPCC09J175/04C09J11/04C08G18/7664C08G18/6674C08G18/3206C08G18/4018C08G18/4277C08G18/4288C08G18/4202C08G18/4804C08G18/5003C08G18/542C08G18/4027C08K2003/323C08K2003/2227C08K2003/2224C08L2201/02C08K13/04C08K3/32C08K3/22C08K7/26
Inventor 李吉明欧静余晓桃王泉
Owner GUANGZHOU MECHANICAL ENG RES INST
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