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Novel multi-purpose fire retardation glue and preparation method thereof

A fire-retardant adhesive, multi-purpose technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of pollution, poor fire prevention effect, high toxicity content, etc., and achieve the effect of good water resistance

Inactive Publication Date: 2015-07-08
WUXI SHUANGMAO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shelf life of the existing flame retardant rubber is only 6 months, and the service life is within 10 years, and it has high toxicity content, great harm, pollution, and poor fire prevention effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation method of multi-purpose novel flame retardant glue, its specific steps are as follows:

[0024] (1) Synthesis process of NCO-based polyurethane prepolymer

[0025] At room temperature, polymer materials with a molecular weight of 1000 or 700 made from ethylene oxide and / or propylene oxide are compounded into the reaction kettle, heated to 85°C, stirred, and polyether polyols are obtained in a vacuum state; Dehydrate for 1 hour, cool down to 40°C, add isocyanate, heat up to 80°C, react for 2 hours, add catalyst, continue to react for 1 hour, adjust the content of NCO-polyurethane prepolymer to about 4%-5%, and then add a small amount of no The water-friendly solvent adjusts the viscosity and drops to normal temperature.

[0026] (2) Compounding of flame retardant rubber

[0027] Get the 30% NCO-based polyurethane prepolymer in step (1), evenly add 2 kinds of mixtures of 30% dioctyl phthalate and dibutyl phthalate, 35% magnesium hydroxide, hydrogen...

Embodiment 2

[0029] A kind of preparation method of multi-purpose novel flame retardant glue, its specific steps are as follows:

[0030] (1) Synthesis process of NCO-based polyurethane prepolymer

[0031] At room temperature, polymer materials with a molecular weight of 1000 or 700 made from ethylene oxide and / or propylene oxide are compounded and added to the reaction kettle, the temperature is raised to 95°C, stirred, and polyether polyol is obtained in a vacuum state; Dehydrate for 2 hours, cool down to 40°C, add isocyanate, heat up to 80°C, react for 2 hours, add catalyst, continue to react for 1 hour, adjust the content of NCO-polyurethane prepolymer to about 4%-5%, and then add a small amount of no The water-friendly solvent adjusts the viscosity and drops to normal temperature.

[0032] (2) Compounding of flame retardant rubber

[0033] Get 40% NCO-based polyurethane prepolymer in step (1), add 25% dioctyl phthalate, dibutyl phthalate 2 kinds of mixtures evenly, 30% magnesium hyd...

Embodiment 3

[0035] A kind of preparation method of multi-purpose novel flame retardant glue, its specific steps are as follows:

[0036] (1) Synthesis process of NCO-based polyurethane prepolymer

[0037] At room temperature, the polymer materials with a molecular weight of 1000 or 700 made from ethylene oxide and / or propylene oxide are compounded and added into the reaction kettle, the temperature is raised to 100°C, stirred, and polyether polyol is obtained in a vacuum state; Dehydrate for 3 hours, cool down to 40°C, add isocyanate, heat up to 85°C, react for 3 hours, add catalyst, continue to react for 2 hours, adjust the content of NCO-polyurethane prepolymer to about 4%-5%, and then add a small amount of no The water-friendly solvent adjusts the viscosity and drops to normal temperature.

[0038] (2) Compounding of flame retardant rubber

[0039] Get 45% of the NCO-based polyurethane prepolymer in step (1), evenly add 2 kinds of mixtures of 30% dioctyl phthalate and dibutyl phthala...

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PUM

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Abstract

The present invention provides a novel multi-purpose fire retardation glue and a preparation method thereof, wherein the raw materials comprise, by weight, 30-45% of a NCO-based polyurethane prepolymer, 18-30% of a plasticizer, 28-35% of a fire retardation material, 2-5% of a PVC paste resin, 0.5-0.9% of a coupling agent, 0.6-0.9% of a dehydrating agent, and 0.1% of a catalyst, and mixing stirring is performed to obtain the fire retardation glue. The fire retardation glue prepared through the method of the present invention has the following characteristics that: the fire retardation glue has characteristics of no solvent polymer, high solid content, low toxicity, environmental protection, single component, and multi-purpose, the chemical harmful factors are lower than the harmful factor health-based occupational exposure limit, the shelf life is 1 year, the use age can achieve more than or equal to 15 years, the fire retardation glue has good water resistance, can be used for adhesion of various types of warship and ship rigid, semi-rigid, and soft thermal insulation (insulating) materials and warship and ship cabin room wall steel plates, and can adhered with a variety of substrates (including non-polar materials), and the fire retardation oxygen index is more than or equal to 30.0%.

Description

technical field [0001] The invention relates to chemical materials and a preparation method thereof, in particular to a new multi-purpose flame-retardant glue and a preparation method thereof. Background technique [0002] Flame retardant adhesive is a polymer flame retardant adhesive formed by high temperature and high pressure polymerization of aluminum hydroxide, magnesium hydroxide, sodium silicate, fire retardant, polymer and other inorganic materials. It is mainly used for various structural flame-retardant adhesive seals in industrial production that have flame-retardant requirements, such as: structural bonding of steel plates in automobile compartments; insulation bonding and sealing of high-voltage parts such as CRT picture tubes and DY deflection coils; Fixing and bonding of PCB sensitive components, capacitors, triodes, etc.; bonding and sealing of refrigerators, microwave ovens, circuit boards, electronic components, and solar energy; moisture-proof and waterpro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/04
Inventor 查玮峰查忠源周红兵万松林
Owner WUXI SHUANGMAO NEW MATERIAL CO LTD