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Solar foaming material

A technology of solar energy and foam materials, which is applied in the field of solar foam materials, and can solve the problems of high thermal conductivity and unfavorable heat preservation of polyurethane

Inactive Publication Date: 2012-12-19
SHANDONG LINUO PARADIGMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also all-water foams, but the thermal conductivity of polyurethane produced by all-water is too large, which is not conducive to heat preservation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The solar foam material of the present embodiment is prepared according to the following raw materials and preparation methods: 90% of polyether, 2% of silicone oil, 1% of foam stabilizer, 2.2% of catalyst, 1.8% of auxiliary agent, 3% of 20-40% The scaly muscovite is fully mixed in the reactor to obtain the mixture A; according to the weight ratio of the material HFC-245fa:water is 5:1, and the mixture C is obtained; according to the mixture A: the mixture C is 1:0.18 The above raw materials are mixed uniformly to obtain a mixture B. According to the weight ratio of isocyanate:mixture B of 1.25:1, the above raw materials are mixed and foamed by a high pressure gun of 100bar-150bar. After curing at 45-65°C, fluorine-free and environmentally friendly polyurethane can be obtained. In the above-mentioned raw materials, the functionality of the polyether is 8, the hydroxyl value is in the range of 240-530 mgKOH / g, and the viscosity is 450 mpa·s; the foam stabilizer is a Si-O...

Embodiment 2

[0019] The solar foam material of the present embodiment is made from the following raw materials and preparation methods by weight: 91% of polyether, 0.5% of silicone oil, 1.5% of foam stabilizer, 2% of catalyst, 1% of auxiliary, 4% of 20-40% The scaly muscovite is fully mixed in the reaction kettle to obtain the mixture A.

[0020] Mix well according to the weight ratio of material HFC-245fa:water to 8:1 to obtain mixture C

[0021] Mix the above raw materials uniformly according to the weight ratio of Mixture A: Mixture C of 1:0.15 to prepare Mixture B. According to the weight ratio of isocyanate:mixture B 1.20:1, the above raw materials are mixed and foamed by a high pressure gun of 100bar-150bar, and then cured at 45-65°C to obtain a fluorine-free and environmentally friendly polyurethane.

[0022] In the above-mentioned raw materials, the functionality of the polyether is 4.2, the hydroxyl value range is 480 mgKOH / g, and the viscosity is 370 mpa·s; the catalyst is compo...

Embodiment 3

[0025] The solar foam material of the present embodiment is prepared according to the following raw materials and preparation methods by weight: polyether 89%, silicone oil 2%, foam stabilizer 2%, catalyst 2%, auxiliary agent 2%, 3% 20-40% The scaly muscovite is fully mixed in the reaction kettle to obtain the mixture A.

[0026] According to the weight ratio of material HFC-245fa:water 3:1, mix evenly to obtain mixture C

[0027] Mix the above raw materials uniformly according to the weight ratio of Mixture A: Mixture C of 1:0.12 to prepare Mixture B. According to the weight ratio of isocyanate:mixture B 1.15:1, the above raw materials are mixed and foamed by a high pressure gun of 100bar-150bar. After curing at 45-65℃, fluorine-free and environmentally friendly polyurethane can be obtained.

[0028] In the above-mentioned raw materials, the polyether is a compounded polyether, which is prepared by compounding a low-functionality polyether polyol and a high-functionality pol...

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Abstract

The invention relates to a solar foaming material which is prepared by raw materials by weight ratio and a method comprising the steps of: fully mixing 89-91.5% of polyether, 0.5-3.0% of silicone oil, 0.5-2.5% of foam stabilizer, 1.5-3% of catalyst, 1.5-3% of auxiliary agent and 1-4% of scaly white mica with 20-40 meshes in a reaction kettle to obtain mixture A; evenly mixing material HFC-245fa and water according to the weight ratio of 3-10: 1 to obtain mixture C; evenly mixing the mixture A and the mixture C according to the weight ratio of 1: 0.05-0.3 to obtain mixture B; mixing isocyanate and the mixture B according to the weight ratio of 1.10-1.30: 1, and then foaming by a high pressure gun with 100-150 bar; and finally, curing at 45-65 DEG C to obtain the polyurethane solar foaming material. The solar foaming material has no damage to the atmospheric ozone layer and has flame retardant function and excellent heat insulation effect.

Description

technical field [0001] The invention relates to a solar foaming material, in particular to a green and environment-friendly polyurethane foaming material which does not destroy the atmospheric ozone layer. Background technique [0002] At present, polyurethane is used as a solar thermal insulation material, and its production volume is increasing. Generally, the combination polyether of polyurethane for solar energy is a mixture mixed with a physical foaming agent. The foaming agent is easily volatilized in the combination polyether; and the foaming agents are all fluorine-containing foaming agents. Atmospheric ozone layer has a dissipative effect. Although HCFC-141b is now used to replace CFC-11, the atmospheric ozone layer dissipation index has been reduced, and it is not the final solution; now Europe also uses cyclopentane as a fluorine-free blowing agent, but the polyurethane produced by it is easy to burn. There are also all-water foams, but the thermal conductivity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/08C08J9/14C08K3/34C08G101/00
Inventor 胡玉涛张国栋闫学峰丁倩
Owner SHANDONG LINUO PARADIGMA
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