Waterproof heat-insulating material and preparation method thereof

A technology of thermal insulation materials and raw materials, applied in the field of materials, can solve the problems of non-waterproof insulation materials, and achieve the effects of improving the average contact angle, good waterproof effect, and good thermal insulation effect.

Inactive Publication Date: 2019-03-19
NANJING LI HANG IND INST OF BIONIC TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the heat insulation material in the prior art is not waterproof, the present invention pro

Method used

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  • Waterproof heat-insulating material and preparation method thereof

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Effect test

Embodiment 1

[0018] The waterproof and heat-insulating material includes the following raw materials in parts by weight: 70 parts of tetraphenylresorcinol diphosphate, 60 parts of polytetrafluoroethylene, 50 parts of pentaerythritol phosphate, 20 parts of dimethyl phthalate, three 50 parts of methylethylenediamine, 40 parts of glass fiber, 45 parts of polyurethane methacrylic resin, 5 parts of methacrylic acid, 7 parts of cumene hydroperoxide.

[0019] The preparation method of the waterproof and heat-insulating material comprises the following steps: mixing tetraphenylresorcinol diphosphate, pentaerythritol phosphate, and dimethyl phthalate, and stirring evenly; adding glass fibers while stirring, and raising the temperature to 80 ~100°C, add polyurethane methacrylic resin, methacrylic acid, keep warm for 2~3h; cool down to 40~60°C, add polytetrafluoroethylene, cumene hydroperoxide, trimethylethylenediamine, mix well ; Inject into the heat insulation layer.

Embodiment 2

[0021] The waterproof and heat-insulating material includes the following raw materials in parts by weight: 40 parts of tetraphenylresorcinol diphosphate, 40 parts of polytetrafluoroethylene, 20 parts of pentaerythritol phosphate, 10 parts of dimethyl phthalate, three 40 parts of methylethylenediamine, 30 parts of glass fiber, 40 parts of polyurethane methacrylic resin, 4 parts of methacrylic acid, 3 parts of cumene hydroperoxide.

[0022] The preparation method of the waterproof and heat-insulating material comprises the following steps: mixing tetraphenylresorcinol diphosphate, pentaerythritol phosphate, and dimethyl phthalate, and stirring evenly; adding glass fibers while stirring, and raising the temperature to 80 ~100°C, add polyurethane methacrylic resin, methacrylic acid, keep warm for 2~3h; cool down to 40~60°C, add polytetrafluoroethylene, cumene hydroperoxide, trimethylethylenediamine, mix well ; Inject into the heat insulation layer.

Embodiment 3

[0024] The waterproof and heat-insulating material includes the following raw materials in parts by weight: 100 parts of tetraphenylresorcinol diphosphate, 80 parts of polytetrafluoroethylene, 100 parts of pentaerythritol phosphate, 30 parts of dimethyl phthalate, three 60 parts of methylethylenediamine, 50 parts of glass fiber, 50 parts of polyurethane methacrylic resin, 6 parts of methacrylic acid, 10 parts of cumene hydroperoxide.

[0025] The preparation method of the waterproof and heat-insulating material comprises the following steps: mixing tetraphenylresorcinol diphosphate, pentaerythritol phosphate, and dimethyl phthalate, and stirring evenly; adding glass fibers while stirring, and raising the temperature to 80 ~100°C, add polyurethane methacrylic resin, methacrylic acid, keep warm for 2~3h; cool down to 40~60°C, add polytetrafluoroethylene, cumene hydroperoxide, trimethylethylenediamine, mix well ; Inject into the heat insulation layer.

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Abstract

The invention discloses a waterproof heat-insulating material and a preparation method thereof. The invention includes following steps: mixing tetraphenyl resorcinol diphosphate, pentaerythritol phosphate and dimethyl phthalate, and stirring well; adding glass fiber while stirring, rising temperature to 80-100 DEG C, adding polyurethane methacrylic resin and methacrylic acid, and allowing heat-insulating reaction for 2-3h; cooling to 40-60 DEG C, adding polytef, isopropyl benzene hydroperoxide and trimethyl ethylenediamine, and mixing well; injecting into a heat-insulating layer to obtain thewaterproof heat-insulating material. Due to adding of polytef, heat conducting coefficient can be maintained below 0.03W/(m K), and the material has good heat-insulating effect. The glass fiber can improve average contact angle of the material, so that the material has good waterproof effect.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a waterproof and heat-insulating material and a preparation method thereof. Background technique [0002] Heat insulation materials are divided into three categories: porous materials, heat reflective materials and vacuum materials. The former uses the pores contained in the material itself to insulate heat, because the thermal conductivity of air or inert gas in the pores is very low, such as foam materials, fiber materials, etc.; heat reflective materials have a high reflection coefficient and can reflect heat, such as Gold, silver, nickel, aluminum foil or metal-plated polyester, polyimide film, etc. Vacuum insulation materials use the internal vacuum of the material to block convection and insulate heat. The aerospace industry has strict requirements on the weight and volume of the insulation materials used, and often requires them to have sound insulation, vibration re...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L75/14C08K13/04C08K7/14C08K5/523C08K5/521C08K5/12
CPCC08L27/18C08L75/14C08K13/04C08K7/14C08K5/523C08K5/521C08K5/12
Inventor 陆福萍
Owner NANJING LI HANG IND INST OF BIONIC TECH LTD
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