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Solar energy thermal insulation material

A technology of thermal insulation materials and solar energy, applied in the field of solar thermal insulation materials, can solve the problems of flammability of polyurethane, not a solution, reduction of the dissipation index of the atmospheric ozone layer, etc.

Active Publication Date: 2008-10-08
SHANDONG LINUO PARADIGMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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 produce. burn

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The solar thermal insulation material of this embodiment is made with the following weight percentages of raw materials and preparation methods: 95% polyether, 1% silicone oil, 0.7% foam stabilizer, 1.5% catalyst, 1.8% auxiliary agent, and the mixture is fully mixed in the reactor. Material A. Mix the above raw materials uniformly according to the weight ratio of mixture A: HFC-245fa of 1:0.12 to prepare mixture B. According to the weight ratio of isocyanate:mixture B1.05:1, the above raw materials are mixed through high-pressure foaming, and cured at high temperature to obtain fluorine-free environmentally friendly polyurethane. Among the above raw materials, the functionality of the polyether is 8, the hydroxyl value is in the range of 530mgKOH / g, and the viscosity is 2460pas·s; the catalyst is made of ethylene glycol and tertiary in a weight ratio of 1:4:2. It is composed of amine catalyst and potassium oleate; the auxiliary agent is fatty alcohol.

[0017] The solar the...

Embodiment 2

[0019] The solar thermal insulation material of this embodiment is made with the following weight percentages of raw materials and preparation methods: 92% polyether, 0.5% silicone oil, 1.5% foam stabilizer, 2% catalyst, 1% auxiliary agent, 3% 20-40 mesh The scaly muscovite is thoroughly mixed in the reactor to obtain the mixture A. Mix the above raw materials uniformly according to the weight ratio of mixture A: HFC-245fa of 1:0.12 to prepare mixture B. According to the weight ratio of isocyanate:mixture B 1.05:1, the above raw materials are mixed, subjected to high pressure foaming, and cured at high temperature to obtain fluorine-free environmentally friendly polyurethane.

[0020] Among the above raw materials, the functionality of the polyether is 4.2, the hydroxyl value range is 480mgKOH / g, and the viscosity is 2520pas·s; the catalyst is made of glycerin and tertiary amine catalyst in a weight ratio of 1:4:2 And potassium oleate; the auxiliary agent is distilled water, anti-...

Embodiment 3

[0023] The solar thermal insulation material of this embodiment is made with the following weight percentages of raw materials and preparation methods: 94% polyether, 0.5% silicone oil, 0.5% foam stabilizer, 2% catalyst, 1% auxiliary agent, 2% 20-40 mesh The scaly muscovite is thoroughly mixed in the reactor to obtain the mixture A. Mix the above raw materials uniformly according to the weight ratio of mixture A: HFC-245fa of 1:0.12 to prepare mixture B. According to the weight ratio of isocyanate:mixture B 1.05:1, the above raw materials are mixed, subjected to high pressure foaming, and cured at high temperature to obtain fluorine-free environmentally friendly polyurethane.

[0024] Among the above-mentioned raw materials, the polyether is a compound polyether, which is compounded from a low-functionality polyether polyol and a high-functionality polyether polyol with a weight ratio of 1:1, wherein the low-functionality polyether polyol Alcohol functionality is 3~4, hydroxyl val...

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Abstract

The invention relates to green environment-friendly polyurethane insulation material which will not destroy the atmospheric ozone layer. The insulation material is made from the raw materials with the following weight proportions and through the following method: (1) 92-96% of polyether, 0.5-2% silicone oil, 0.5-2% foam stabilizer, 1-4% catalyst and 1-4% of additive are fully mixed through a reactor to obtain the mixed material A; (2) according to the weight ratio of 1:0.05-0.3 between the mixed material A and HFC-245fa, the raw materials are evenly mixed to prepare the mixed material B; (3) based on the weight ratio of 1-1.1:1 between isocyanate and the mixed material B, the raw materials are mixed and foamed under high pressure so as to obtain the polyurethane solar energy insulation material after high-temperature solidification. The insulation material is green environment-friendly material which will not destroy the atmospheric ozone layer and has insulation and fire-retardant effects.

Description

Technical field [0001] The invention relates to a solar thermal insulation material, in particular to a green environmental protection polyurethane thermal insulation material that does not destroy the atmospheric ozone layer. Background technique [0002] At present, as a solar thermal insulation material, the production volume of polyurethane is increasing. Generally, the combined polyether of polyurethane for solar energy is a mixture mixed with a physical foaming agent. The foaming agent is easy to volatilize in the combined polyether; and the foaming is a fluorine-containing foaming agent, and the polyurethane produced is a mixture of physical foaming agents. The 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, which is not the final solution; now Europe also uses cyclopentane as a non-fluorine blowing agent, but the polyurethane produced by it is easy to use. Burn. Summar...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/08C08J9/04C08K3/34C09K3/18
Inventor 任勇胡玉涛刘秀娟翟建新
Owner SHANDONG LINUO PARADIGMA
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