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Preparation method of polyurethane heating radiator

A radiator and polyurethane technology, applied in the field of polyurethane, can solve the problems of no polyurethane radiator reported in literature, metal radiators are easy to rust, and have a short service life, and achieve the effects of light quality, low production cost, and stable physical properties.

Inactive Publication Date: 2015-10-14
ZIBO DEXIN LIANBANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Radiators are indispensable in the north of collective heating. Traditional metal radiators are easy to rust, easy to block, and have a short service life, heavy, difficult to carry, and high production costs.
[0003] In the prior art, there are no literature reports related to polyurethane radiators

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of the present embodiment polyurethane radiator comprises the following steps:

[0021] (1) Preparation of prepolymer A component:

[0022] Mix polyether polyol A and polyether polyol B evenly at a mass ratio of 1:2, heat up to 110°C, dehydrate under high vacuum -0.08±0.01MPa for 3 hours, then cool down to 50°C, add 0.3 times the mass of poly The diphenylmethane diisocyanate of the total mass of the ether polyol was stirred evenly, and the temperature was raised to 85° C. for 3 hours, and the mass content of the isocyanate was 9.5% by sampling to obtain the prepolymer component A;

[0023] (2) Preparation of component B: the chain extender MOCA and the tin catalyst T9 were mixed uniformly at a mass ratio of 300:1 to obtain component B;

[0024] (3) Production of polyurethane elastomer: Mix components A and B evenly at a mass ratio of 5:1, pour them into a mold at 60°C, and react under a pressure of 13MPa to obtain a test piece. The test piece is ...

Embodiment 2

[0026] The preparation method of the present embodiment polyurethane radiator comprises the following steps:

[0027] (1) Preparation of prepolymer A component:

[0028] Mix polyether polyol A and polyether polyol B evenly at a mass ratio of 1:1.5, heat up to 105°C, dehydrate under high vacuum -0.08±0.01MPa for 4 hours, then cool down to 40°C, add 0.2 times the mass of poly The diphenylmethane diisocyanate of the total mass of the ether polyol was stirred evenly, and the temperature was raised to 80° C. for 4 hours, and the mass content of the isocyanate was 14.5% by sampling to obtain the prepolymer A component;

[0029] (2) Preparation of component B: the chain extender MOCA and the tin catalyst T9 were uniformly mixed in a mass ratio of 300:2 to obtain component B;

[0030] (3) Production of polyurethane elastomer: Mix components A and B evenly at a mass ratio of 4:1, pour them into a mold at 65°C, and react under a pressure of 12MPa to obtain a test piece. The test piece ...

Embodiment 3

[0032] The preparation method of the present embodiment polyurethane radiator comprises the following steps:

[0033] (1) Preparation of prepolymer A component:

[0034] Mix polyether polyol A and polyether polyol B evenly at a mass ratio of 1:1.8, heat up to 115°C, dehydrate under high vacuum -0.08±0.01MPa for 3.5h, then cool down to 45°C, add 0.4 times the mass The diphenylmethane diisocyanate of the total mass of polyether polyol was stirred evenly, and the temperature was raised to 90°C for 3 hours to react, and the mass content of isocyanate was detected to be 11% by sampling to obtain the prepolymer A component;

[0035] (2) Preparation of component B: chain extender MOCA and tin catalyst T9 are mixed evenly at a mass ratio of 300:1.5 to obtain component B;

[0036] (3) Production of polyurethane elastomer: Mix components A and B evenly at a mass ratio of 5:1, pour them into a mold at 70°C, and react and mold them under a pressure of 10MPa to obtain a test piece. The te...

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Abstract

The invention belongs to the technical field of polyurethane and specifically relates to a preparation method of a polyurethane heating radiator. The preparation method of the polyurethane heating radiator comprises the following steps: uniformly mixing polyether polyol A and polyether polyol B, heating, dehydrating under high vacuum, cooling, adding diphenylmethane diisocyanate, uniformly stirring, heating and reacting, sampling and testing until mass content of isocyanate is 9-15% so as to obtain a prepolymer A component; uniformly mixing a chain extender and a tin catalyst to obtain a B component; uniformly mixing the A component and the B component, pouring the mixture into a mold, reacting to obtain a test piece, and vulcanizing the test piece to obtain a finished product. The prepared polyurethane heating radiator has good water resistance, is resistant to water seepage, is anti-rust, is not easy to block, has high hardness, is stretch-proof, is tear resistant, has high temperature resistance, will not deform, has stable physical properties, has more excellent heat dissipation performance than a metal product and is light. Production cost of the heating radiator is low. The preparation method is simple and easy to operate, and is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a preparation method of a polyurethane radiator. Background technique [0002] Radiators are indispensable in the north of collective heating. Traditional metal radiators are prone to rust and blockage, and have a short service life. They are heavy, difficult to carry, and have high production costs. [0003] In the prior art, there are no literature reports related to polyurethane radiators. Contents of the invention [0004] The purpose of the present invention is to provide a method for preparing a polyurethane radiator. The obtained polyurethane radiator has good water resistance, no water seepage, no rust, no clogging, high hardness, stretch resistance, tear resistance, high temperature resistance, and no deformation , stable physical properties, better heat dissipation performance than metal products, light weight and low production cost. [0005] The p...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/12C08G18/66C08G18/48C08G18/32
CPCC08G18/7671C08G18/12C08G18/4804C08G18/6685C08G18/3814
Inventor 耿佃勇荆晓东柴可军王帅董伟
Owner ZIBO DEXIN LIANBANG CHEM IND
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