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Flame-retardant ultralow-heat-conductivity-coefficient PFU foam and manufacturing method thereof

A technology of thermal conductivity and foam, which is applied in the field of thermal insulation foam, can solve the problems of easily corroded metal objects, etc., and achieve the effect of good mechanical properties, good compatibilizer, and slow aging speed

Pending Publication Date: 2020-09-01
SHANGHAI ADVANCED ENG MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is brittle and easy to pulverize; and the foam itself contains acid, which is easy to corrode metal objects

Method used

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  • Flame-retardant ultralow-heat-conductivity-coefficient PFU foam and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for making a flame-retardant ultra-low thermal conductivity PFU foam, using the following steps:

[0029](1) Prepare materials according to the following components and parts by weight: 100 parts of PFU resin, 2.5 parts of foam stabilizer, 0.5 parts of catalyst, 18 parts of modifier, 14 parts of blowing agent, and 145 parts of isocyanate. The agent is Tween-80, the flame retardant is TCPP, the catalyst is T12, the modifier is a mixed solution of diisopropanolamine and polyethylene glycol 200 at a ratio of 1:8, and the foaming agent is pentane;

[0030] (2) Put the total amount of PFU resin, foam stabilizer, catalyst, modifier, and blowing agent into the mixing tank according to the formula, and then stir for 20-50min until uniform;

[0031] (3) Mix the above-mentioned (2) components with isocyanate, stir evenly at a high speed and inject into the mold;

[0032] (4) The above-mentioned (3) mold is foamed and cured at a temperature of 55--65° C. to obtain a flam...

Embodiment 2

[0035] A method for making a flame-retardant ultra-low thermal conductivity PFU foam, using the following steps:

[0036] (1) Prepare materials according to the following components and parts by weight: 100 parts of PFU resin, 3.2 parts of foam stabilizer, 0.8 parts of catalyst, 15 parts of modifier, 18 parts of foaming agent, and 140 parts of isocyanate. The agent is a mixture of AK8801 and AK8806, the flame retardant is TECP, the catalyst is T12, the modifier is a mixed solution of diisopropanolamine and polyethylene glycol 200 at a ratio of 1:6, and the blowing agent is cyclopentane;

[0037] (2) Put the total amount of PFU resin, foam stabilizer, catalyst, modifier, and blowing agent into the mixing tank according to the formula, and then stir for 20-50min until uniform;

[0038] (3) Mix the above-mentioned (2) components with isocyanate, stir evenly at a high speed and inject into the mold;

[0039] (4) The above-mentioned (3) mold is foamed and cured at a temperature of...

Embodiment 3

[0042] A method for making a flame-retardant ultra-low thermal conductivity PFU foam, using the following steps:

[0043] (1) Prepare materials according to the following components and parts by weight: 100 parts of PFU resin, 4 parts of foam stabilizer, 1.0 parts of catalyst, 20 parts of modifier, 12 parts of foaming agent, and 165 parts of isocyanate. The agent is a mixture of Tween 80 and AK8806, the flame retardant is a mixture of TECP and aluminum hydroxide, the catalyst is an organotin substance, and the modifier is a mixture of diisopropanolamine and polyethylene glycol 200 at a ratio of 1:5. The solution and foaming agent are mixed pentane;

[0044] (2) Put the total amount of PFU resin, foam stabilizer, catalyst, modifier, and blowing agent into the mixing tank according to the formula, and then stir for 20-50min until uniform;

[0045] (3) Mix the above-mentioned (2) components with isocyanate, stir evenly at a high speed and inject into the mold;

[0046] (4) The ...

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Abstract

The invention relates to flame-retardant ultralow-heat-conductivity-coefficient PFU foam and a manufacturing method thereof. The flame-retardant ultralow-heat-conductivity-coefficient PFU foam is prepared from PFU resin, a foam stabilizer, a catalyst, a modifier, a foaming agent and the like. The preparation method comprises steps: mixing the raw materials in proportion and then stirring to be uniform to obtain a mixture; mixing the mixture with isocyanate, uniformly stirring at a high speed, and injecting into a mold; and foaming, curing and molding the mold at the temperature of 55-65 DEG Cto obtain the flame-retardant ultralow-heat-conductivity-coefficient PFU foam. Compared with the prior art, the PFU foam disclosed by the invention not only has excellent physical properties of polyurethane foam, but also has excellent properties of phenolic foam, such as flame retardancy, acid corrosion resistance, surface carbonization when meeting fire, self-extinguishing when leaving fire andthe like; in addition, the highest oxygen index can reach 30 or above, and the combustion performance grade can reach the flame-retardant B1 grade; the heat conductivity coefficient of the material isextremely low and can reach 0.0162 W / K.m. In addition, the material has excellent properties of heat insulation, light weight, high strength and the like, so that the material has the best heat preservation effect in organic heat preservation materials.

Description

technical field [0001] The invention relates to the field of thermal insulation foam industry, in particular to a flame-retardant ultra-low thermal conductivity PFU foam and a manufacturing method thereof. Background technique [0002] At present, in the polymer material market at home and abroad, polyurethane foam materials and phenolic foam materials occupy a relatively large share in thermal insulation, green energy-saving and other application fields. Polyurethane foam material is a kind of foam material formed by mixing polyol, foaming agent, foam stabilizer auxiliary agent and isocyanate and other materials evenly and then foaming and curing. It has the excellent properties of light weight, high strength, low water absorption, low thermal conductivity, and can be combined with various materials; however, since polyurethane material itself is a flammable material, its oxygen index is 17; If it happens, it will burn and decompose in case of fire, producing a large amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08K5/521C08K3/22C08J9/14C08J9/00
CPCC08J9/141C08J9/0038C08J9/0028C08J9/0095C08J9/0066C08J9/0023C08J2361/14C08J2203/14C08K5/521C08K2003/2227
Inventor 杨金平陈士景高源
Owner SHANGHAI ADVANCED ENG MATERIALS
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