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Thermal insulation foam material and preparation method thereof

A technology of foam materials and raw materials, applied in the field of foam materials, can solve problems such as foam shrinkage, achieve high weather resistance, improve heat preservation effect, and improve heat insulation effect

Inactive Publication Date: 2019-01-25
HUNAN CHENLI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention aims to provide a low-cost preparation, remarkable heat preservation effect, more excellent mechanical properties, better stability, and can effectively solve the technical problem of foam shrinkage that is easy to occur in traditional foam materials. At the same time provide its preparation method

Method used

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  • Thermal insulation foam material and preparation method thereof
  • Thermal insulation foam material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] A thermal insulation foam material, which is made of the following raw materials in parts by weight: 70 parts of fluorenone polyureidoacrylamide, 5 parts of triallyl phosphate, and 10 parts of vinyl (trifluoromethyl) dimethyl silane , 1 part of azobisisobutyronitrile, 1 part of phenylethylphenol polyoxyethylene ether, 10 parts of surface-modified porous hollow nano-alumina fibers, and 15 parts of n-pentane.

[0027] The preparation method of the fluorenone-based polyureidoacrylamide comprises the following steps: adding 20 g of vacuum dehydrated HDI trimer, 2,6-diamino-9H-fluorene-9 to a three-necked flask with a stirring device -10 g of ketone, and 100 g of dimethyl sulfoxide was added, stirred and reacted for 3 hours at 60° C. under a nitrogen atmosphere, then 4 g of dibutyltin dilaurate was added, the temperature was raised to 80° C., stirred and reacted for 7 hours, and N-(hydroxymethyl ) acrylamide 5g and 2,2,6,6-tetramethylpiperidine-nitrogen-oxide 1g, continue to...

Embodiment 2

[0031] A thermal insulation foam material is made of the following raw materials in parts by weight: 73 parts of fluorenone polyureidoacrylamide, 7 parts of triallyl phosphate, 12 parts of vinyl (trifluoromethyl) dimethyl silane , 2 parts of azobisisoheptanonitrile, 2 parts of polyoxyethylene lauryl ether, 12 parts of surface-modified porous hollow nano-alumina fibers, and 17 parts of cyclopentane.

[0032] The preparation method of the fluorenone-based polyureidoacrylamide comprises the following steps: adding 20 g of vacuum dehydrated HDI trimer, 2,6-diamino-9H-fluorene-9 to a three-necked flask with a stirring device -10 g of ketone, and 120 g of N,N-dimethylformamide were added, stirred and reacted for 3.3 hours at 63° C. under a helium atmosphere, then 4 g of stannous octoate was added, the temperature was raised to 83° C., stirred and reacted for 7.5 hours, and N-( 5 g of hydroxymethyl) acrylamide and 1.5 g of tetrachlornaphthaquinone, continue to stir and react for 6.5 ...

Embodiment 3

[0036] A thermal insulation foam material is made of the following raw materials in parts by weight: 76 parts of fluorenone polyureidoacrylamide, 7 parts of triallyl phosphate, 13 parts of vinyl (trifluoromethyl) dimethyl silane , 3 parts of azobisisoheptanonitrile, 2 parts of polyoxyethylene oleate, 13 parts of surface-modified porous hollow nano-alumina fibers, and 18 parts of n-hexane.

[0037] The preparation method of the fluorenone-based polyureidoacrylamide comprises the following steps: adding 20 g of vacuum dehydrated HDI trimer, 2,6-diamino-9H-fluorene-9 to a three-necked flask with a stirring device - 10g of ketone, and 135g of N-methylpyrrolidone, stirred and reacted for 3.6 hours at 66°C under neon atmosphere, then added 4g of triethylamine, raised the temperature to 86°C, stirred and reacted for 8 hours, then added N-(hydroxymethyl) Acrylamide 5g and 1,4-naphthoquinone 2.5g, continue to stir for 7 hours, cool down to room temperature after the reaction, then prec...

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Abstract

The invention discloses a thermal insulation foam material, which is prepared from the following raw materials by weight: 70-80 parts of fluorenone-based polyurea acrylamide, 5-10 parts of triallyl phosphate, 10-15 parts of vinyl(trifluoromethyl)dimethylsilane, 1-3 parts of an initiator, 1-3 parts of an emulsifier, 10-15 parts of surface-modified porous hollow nanometer alumina fiber, and 15-20 parts of a foaming agent. The invention further discloses a preparation method of the thermal insulation foam material. According to the present invention, the thermal insulation foam material has advantages of low preparation cost, remarkable thermal insulation effect, excellent mechanical property and good stability, and can effectively solve the technical problem of foam shrinkage easily occuringin the conventional foam material.

Description

technical field [0001] The invention relates to the technical field of foam materials, in particular to a thermal insulation foam material and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of our country's economy and the rapid growth of population, the problem of energy shortage, which has been hindering social progress and economic development, has become increasingly serious. Among them, energy waste is one of the main reasons for the energy crisis. Therefore, in order to alleviate the energy shortage problem, we must save energy and reduce consumption. [0003] The use of thermal insulation materials for thermal insulation is one of the effective ways to save energy and reduce consumption. Insulation materials are generally materials with a thermal coefficient less than or equal to 0.12. The quality of its performance directly determines the insulation effect, which in turn affects the efficiency of energy savin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F230/02C08F230/08C08K9/06C08K7/24C08J9/14
CPCC08F283/008C08J9/0085C08J9/009C08J9/141C08J2203/14C08J2351/08C08K7/24C08K9/06C08K2201/011C08F230/02C08F230/08
Inventor 曹冰余香兰
Owner HUNAN CHENLI NEW MATERIAL CO LTD