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Flame-retardant heat insulation material for solar water heater and preparation method of flame-retardant heat insulation material

A solar water heater, flame retardant and thermal insulation technology, applied in the field of thermal insulation materials, can solve the problems of reducing the thermal insulation performance of polyurethane, no flame retardancy, short-circuit fire, etc., and achieve the effects of improving thermal insulation performance, increasing strength, and reducing shrinkage rate

Inactive Publication Date: 2019-04-09
ANHUI MINGGUANG ZHONGXING SUNLIGHT NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the production process of polyurethane insulation materials, it is inevitable to add some inorganic and organic fillers to improve the strength of the material, but at the same time reduce the insulation performance of polyurethane
In addition, polyurethane insulation materials also have the disadvantage of no flame retardancy. At this time, some solar water heaters are equipped with electric heaters. If the circuit is aging, it will cause a short circuit and cause a fire.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A flame-retardant heat preservation material for a solar water heater, comprising the following raw materials in parts by weight: 80 parts of polyether polyol, 130 parts of isocyanate, 1 part of carbon nanofiber, 10 parts of modified expanded vermiculite, and 2 parts of foaming agent , 0.5 parts of foam stabilizer, 0.5 parts of catalyst, 1 part of crosslinking agent, 4 parts of water;

[0022] The modified expanded vermiculite is prepared by the following method: adding expanded vermiculite with a particle size of 50 meshes into water and stirring evenly to obtain an expanded vermiculite colloidal solution with a content of 8 wt %; adding to the expanded vermiculite colloidal solution Chitosanized quaternary ammonium salt, the weight ratio of chitosanized quaternary ammonium salt to expanded vermiculite is 1:1, stirred and reacted at 120°C for 5h, filtered, washed with water, and dried to obtain the modified expanded vermiculite; wherein The chitosanized quaternary ammo...

Embodiment 2

[0026] A kind of flame-retardant insulation material for solar water heaters, comprising the following raw materials in parts by weight: 100 parts of polyether polyol, 110 parts of isocyanate, 5 parts of carbon nanofiber, 5 parts of modified expanded vermiculite, and 5 parts of foaming agent , 0.1 parts of foam stabilizer, 2 parts of catalyst, 0.5 parts of crosslinking agent, 10 parts of water;

[0027] The modified expanded vermiculite is prepared by the following method: adding expanded vermiculite with a particle size of 500 meshes into water and stirring evenly to obtain an expanded vermiculite colloidal solution with a content of 2 wt %; adding to the expanded vermiculite colloidal solution Chitosanized quaternary ammonium salt, the weight ratio of chitosanized quaternary ammonium salt to expanded vermiculite is 5:1, stirred and reacted at 100°C for 7h, filtered, washed with water, and dried to obtain the modified expanded vermiculite; wherein The chitosanized quaternary ...

Embodiment 3

[0031] A kind of flame-retardant insulation material for solar water heaters, comprising the following raw materials in parts by weight: 90 parts of polyether polyol, 120 parts of isocyanate, 3 parts of carbon nanofiber, 7 parts of modified expanded vermiculite, and 3 parts of foaming agent , 0.3 parts of foam stabilizer, 1 part of catalyst, 0.8 parts of crosslinking agent, 7 parts of water;

[0032] The modified expanded vermiculite is prepared by the following method: the expanded vermiculite with a particle size of 100 mesh is added into water and stirred evenly to obtain an expanded vermiculite colloidal solution with a content of 5 wt %; Chitosanized quaternary ammonium salt, the weight ratio of chitosanized quaternary ammonium salt to expanded vermiculite is 3:1, stirred and reacted at 110°C for 6h, filtered, washed with water, and dried to obtain the modified expanded vermiculite; wherein The chitosanized quaternary ammonium salt is prepared by the following method: dis...

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Abstract

The invention provides a flame-retardant heat insulation material for a solar water heater and a preparation method of the flame-retardant heat insulation material. The flame-retardant heat insulationmaterial comprises the following raw materials in parts by weight: 80-100 parts of polyether polyol, 110-130 parts of isocyanate, 1-5 parts of carbon nanofibers, 5-10 parts of modified expanded vermiculite, 2-5 parts of foaming agent, 0.1-0.5 part of foam stabilizer, 0.5-2 parts of catalyst, 0.5-1 part of crosslinking agent and 4-10 parts of water. The flame-retardant heat insulation material provided by the invention has favorable strength and heat insulation property, also overcomes the defect of high shrinkage after foam molding and has good flame retardance.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a flame-retardant thermal insulation material for solar water heaters and a preparation method thereof. Background technique [0002] As the world's energy and environmental problems are becoming more and more severe, countries all over the world are striving to develop clean, environmentally friendly and sustainable renewable energy. As an inexhaustible clean energy source, solar energy has been paid more and more attention by people, especially the most widely used solar water heaters. For solar water heaters, the insulation performance of the insulation material of the water tank directly affects the performance of the water heater. [0003] At present, the existing thermal insulation materials for solar water heater tanks are mainly organic thermal insulation materials and inorganic thermal insulation materials. Generally, the thermal insulation performa...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/32C08K13/06C08K9/04C08K7/26C08K7/06C08J9/14C08J9/08C08G101/00
CPCC08G18/3206C08G18/4804C08G18/4825C08G18/6674C08G2101/00C08J9/0071C08J9/0076C08J9/009C08J9/144C08J2203/142C08J2205/052C08J2475/08C08K7/06C08K7/26C08K9/04C08K13/06C08K2201/003C08K2201/011
Inventor 陈兵
Owner ANHUI MINGGUANG ZHONGXING SUNLIGHT NEW ENERGY TECH CO LTD
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