Preparation method of weatherproof polyurethane thermal insulation wall material

A technology of thermal insulation wall and polyurethane, which is applied in the field of building materials, can solve the problem of low weather resistance of wall thermal insulation materials and achieve good thermal insulation performance

Inactive Publication Date: 2015-04-08
孟红琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the problem that the weather

Method used

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  • Preparation method of weatherproof polyurethane thermal insulation wall material
  • Preparation method of weatherproof polyurethane thermal insulation wall material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Take 50Kg of polyethylene glycol, vacuum dehydrate it while stirring at 100°C for 2 hours, cool to room temperature, add 60Kg of toluene diisocyanate, 5Kg of E-44 epoxy resin, 5Kg of maleic acid, and polybutylene diisocyanate Butylene glycol ester 5Kg, benzoyl chloride 5Kg, dibutyltin dilaurate 2Kg, react at 80°C for 1h, then add glycerol 30Kg, react at 80°C for 20min, to obtain a prepolymer;

[0024] Step 2: Add 30Kg of plant fiber, 10Kg of aluminum oxide, 4Kg of silicon dioxide, 5Kg of talcum powder, 2Kg of diatomaceous earth, 15Kg of polystyrene, 4Kg of plasticizer, 4Kg of heat stabilizer, and lubricant into the prepolymer. 2Kg of agent, 2Kg of coupling agent, 2Kg of antioxidant, stir evenly, vacuum degassing, pour into the mold to solidify, the curing temperature is 70°C, keep warm for 12h, heat up to 100°C, keep warm for 10h, after cooling, ready to serve.

[0025] The polyethylene glycol refers to polyethylene glycol 2000; the plant fiber is a fiber made o...

Embodiment 2

[0027] Step 1: Take 80Kg of polyethylene glycol, vacuum dehydrate it while stirring at 110°C for 3 hours, cool to room temperature, add 80Kg of toluene diisocyanate, 10Kg of E-44 epoxy resin, 10Kg of maleic acid, and polybutylene diisocyanate Butylene glycol ester 10Kg, benzoyl chloride 10Kg, dibutyltin dilaurate 4Kg, react at 85°C for 2h, then add glycerol 60Kg, react at 85°C for 35min to obtain a prepolymer;

[0028] Step 2: Add 40Kg of plant fiber, 20Kg of aluminum oxide, 8Kg of silicon dioxide, 10Kg of talcum powder, 4Kg of diatomaceous earth, 20Kg of polystyrene, 8Kg of plasticizer, 8Kg of heat stabilizer, and lubricant into the prepolymer. Add 4Kg of agent, 4Kg of coupling agent, and 4Kg of antioxidant, stir evenly, vacuum defoam and pour into a mold to solidify. The curing temperature is 75°C, keep warm for 15h, raise the temperature to 110°C, keep warm for 12h, and cool down.

[0029] The polyethylene glycol refers to polyethylene glycol 2000; the plant fiber is a fibe...

Embodiment 3

[0031] Step 1: Take 70Kg of polyethylene glycol, vacuum dehydrate it while stirring at 105°C for 2 hours, cool to room temperature, add 70Kg of toluene diisocyanate, 8Kg of E-44 epoxy resin, 7Kg of maleic acid, and polybutylene diisocyanate Butylene glycol ester 8Kg, benzoyl chloride 8Kg, dibutyltin dilaurate 3Kg, react at 82°C for 2h, then add glycerin 50Kg, react at 82°C for 30min to obtain a prepolymer;

[0032] Step 2: Add 35Kg of plant fiber, 15Kg of aluminum oxide, 6Kg of silicon dioxide, 7Kg of talcum powder, 3Kg of diatomaceous earth, 17Kg of polystyrene, 7Kg of plasticizer, 6Kg of heat stabilizer, and lubricant into the prepolymer. 3Kg of agent, 3Kg of coupling agent, 3Kg of antioxidant, stir evenly, vacuum degassing, pour into the mold to solidify, the curing temperature is 72°C, keep warm for 13h, heat up to 105°C, keep warm for 11h, after cooling, ready to serve.

[0033] The polyethylene glycol refers to polyethylene glycol 2000; the plant fiber is a fiber made of...

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Abstract

The invention provides a preparation method of a weatherproof polyurethane thermal insulation wall material, and belongs to the technical field of building materials. The preparation method comprises the following steps: performing vacuum dehydration on polyethylene glycol, adding toluene diisocyanate, E-44 epoxy resin, maleic acid, polybutylene succinate, benzoyl chloride and dibutyltin dilaurate for reaction, and then adding glycerol for reaction to obtain a prepolymer; adding plant fiber, aluminum oxide, silicon dioxide, talc powder, diatomite, polystyrene, a plasticizer, a thermal stabilizer, a lubricant, a coupling agent and an antioxidant into the prepolymer, and stirring uniformly; and performing vacuum defoamation, and pouring into a mold for curing. The polyurethane thermal insulation wall material prepared by the method provided by the invention can still keep relatively good thermal insulation performance after being used for a long time at a low temperature.

Description

technical field [0001] The invention provides a preparation method of a weather-resistant polyurethane thermal insulation wall material, which belongs to the technical field of building materials. Background technique [0002] In the 21st century, with the continuous exploitation and utilization of energy, the energy will inevitably decrease gradually, and the energy crisis will become more and more serious. One of the most effective ways to alleviate the energy crisis and solve the contradiction between social development and energy shortage is to vigorously promote building energy conservation. At present, it is generally believed that building energy conservation is the most potential, most direct and effective way among various ways of energy conservation. Building energy consumption generally includes the energy used for building heating, cooling, electricity, lighting, etc., among which heating and cooling consume the most energy. The heat preservation of buildings ...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L75/06C08L97/02C08L25/06C08K13/02C08K3/22C08K3/36C08K3/34C08G18/67C08G18/66C08G18/48C08G18/42C08G18/32C08G18/12
Inventor 孟红琳
Owner 孟红琳
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