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Cryogenic insulation material for low-temperature storage, transportation and application equipment, and preparation method thereof

A technology of cryogenic heat insulation and application equipment, which is applied in the field of polyurethane composite materials, can solve problems such as difficult industrial production, no need for cold insulation, and difficulty in uniform distribution of glass fiber mats, etc., and achieves simple operation, improved strength and flame retardancy, dispersion and The effect of enhanced distribution characteristics

Active Publication Date: 2018-09-18
南京红宝丽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glass fiber mat is difficult to distribute evenly, and it is difficult to produce industrially
[0007] And the disclosed continuous fiber reinforced polyurethane foam material of patent CN101235128A, CN101191010A, and the polyurethane insulation material reinforced by short glass fiber powder disclosed by patent CN101781395A are not used for cold preservation under ultra-low temperature environment

Method used

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  • Cryogenic insulation material for low-temperature storage, transportation and application equipment, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation of reinforcing fibers: 50 parts by weight of glass fibers with a fiber length of 5 mm;

[0044] Filler preparation: 7 parts by weight of 100-120 mesh silica sand, 5 parts by weight of 100 mesh expandable graphite, 3 parts by weight of 100 mesh calcium hydroxide, and 5 parts by weight of 400 mesh emery;

[0045] Preparation of component A of rigid polyurethane foaming material: 60 parts by weight of polyether polyol (HP2502, Hongbaoli), 40 parts by weight of polyether polyol (H4650, Hongbaoli), 2 parts by weight of triethanolamine, 1 , 1.5 parts by weight of 3,5-tris(dimethylaminopropyl) symmetrical hexahydrotriazine, 2 parts by weight of foaming agent water, 1.5 parts by weight of water, 15 parts by weight of diphenylisooctyl phosphate, foam stabilizer AK8830 (Meister) 3 parts by weight; B component: polyphenyl polymethylene polyisocyanate M20S (Basf) 225 parts by weight;

[0046] The reinforcing fibers and fillers are formulated into a mixture in proportio...

Embodiment 2

[0048] Preparation of reinforcing fibers: 50 parts by weight of carbon fibers with a fiber length of 10 mm;

[0049] Preparation of filler: 0.1 part by weight of 800 mesh silicon powder;

[0050] The preparation of component A of polyurethane rigid foam foaming material: take 23 parts by weight of polyether polyol (H4110, Hongbaoli), 77 parts by weight of polyester polyol (PS-2502, Stepan), and 1.9 parts by weight of triethylenediamine Parts, 0.4 parts by weight of potassium isooctanoate-dipropylene glycol solution, 8 parts by weight of pentane, 7 parts by weight of HFC-245fa, CO 2 10 parts by weight, 1.6 parts by weight of water, 20 parts by weight of tris (2-chloropropyl) phosphate, 10 parts by weight of dimethyl methyl phosphate, 4 parts by weight of foam stabilizer B8460 (Degussa); Preparation: 228 parts by weight of polyphenyl polymethylene polyisocyanate M200 (Kumho Mitsui);

[0051] The reinforcing fiber and the filler are prepared into a mixture in proportion, and th...

Embodiment 3

[0053] Preparation of reinforcing fibers: 60 parts by weight of carbon fibers with a fiber length of 5 mm;

[0054] Preparation of filler: 5 parts by weight of 325 mesh titanium dioxide, 5 parts by weight of 200 mesh borax, 5 parts by weight of calcite powder of 2500 mesh, 5 parts by weight of hollow glass beads of 400 mesh;

[0055] The preparation of polyurethane rigid foam foam material A component: get 100 parts by weight of polyester polyol (PS-2852, Stepan), 4.5 parts by weight of dimethylcyclohexylamine, 0.5 part by weight of dibutyltin dilaurate, HCFC- 23 parts by weight of 141b, 2 parts by weight of water, 10 parts by weight of tris(2-chloropropyl) phosphate, 10 parts by weight of dimethyl methyl phosphate, 1.15 parts by weight of foam stabilizer AK8805 (Mester); component B Preparation: 227 parts by weight of polyphenyl polymethylene polyisocyanate M50 (Basf);

[0056] The reinforcing fiber and the filler are formulated into a mixture in proportion, and the polyuret...

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Abstract

The invention discloses a cryogenic insulation material for low-temperature storage, transportation and application equipment, and a preparation method thereof. The cryogenic insulation material is prepared by reacting a reinforced fiber, a filler and a rigid polyurethane foam foaming material, and is prepared from the components in parts by weight: 50 to 60 parts of reinforced fiber, 0.1 to 20 parts of filler, and 20 to 49.9 parts of rigid polyurethane foam foaming material. The preparation method of the cryogenic insulation material comprises the steps of blending the reinforced fiber and the filler according to the proportion so as to obtain a mixture; adding the rigid polyurethane foam foaming material into the mixture, fully mixing, and then pouring; and curing and forming to obtain the cryogenic insulation material. The cryogenic insulation material has the overall density being 80 to 200kg / m<3>, the heat conductivity coefficient being less than or equal to 22.0mW / (m.K) at the average temperature of minus 170 DEG C, the compression strength being larger than or equal to 1.5MPa at the temperature of minus 170 DEG C, the tensile strength being larger than or equal to 0.6MPa, and the combustion performance level being not lower than the B1 level in GB8624-2012 'building material and product combustion performance classification'.

Description

technical field [0001] The invention belongs to the field of polyurethane composite materials, and in particular relates to a cryogenic insulation material for low-temperature storage and transportation and application equipment and a preparation method thereof. Background technique [0002] The support of policies, the maturity of technology and the rapid growth of the market have led to the continuous and rapid development of low-temperature storage, transportation and application equipment mainly based on liquefied natural gas (LNG). With the growing shortage of energy and the increasing requirements for environmental protection, the country has begun to vigorously implement energy-saving and emission-reduction policies. The technical maturity of LNG to replace traditional fuels such as diesel is relatively high, the effect of energy saving and environmental protection is remarkable, and it has high economy and broad market development space. [0003] Since natural gas o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B26/16
CPCC04B26/16C04B2111/28C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B14/42C04B14/06C04B14/024C04B14/324C04B22/064C04B38/103C04B38/0067
Inventor 袁海顺韦华傅振华祝丽娟诸爱东邢小刚黄建华
Owner 南京红宝丽新材料有限公司
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