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Carbon-fiber-reinforced polyurethane foamed plastic and preparation method thereof

A foamed plastic and carbon fiber technology, applied in the field of polyurethane materials, can solve the problems of pure foam materials such as compressive strength, compressive modulus impact strength and loss factor that are difficult to meet the standards at the same time

Inactive Publication Date: 2012-07-11
WUJIANG MINGFENG POLYURETHANE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyurethane foam plastics are often used as packaging materials, but the compressive strength, compressive modulus, impact strength and loss factor of pure foam materials are difficult to meet the standards at the same time. Use other methods to modify and enhance to improve the relevant properties of materials

Method used

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  • Carbon-fiber-reinforced polyurethane foamed plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A carbon fiber reinforced rigid polyurethane foam comprising the following components:

[0028] Material A: 100 parts of polyether polyol, 5 parts of flame retardant, 7 parts of foaming agent, 1.5 parts of foam stabilizer, 5 parts of carbon fiber, 1.5 parts of catalyst, 0.01 part of water, 5 parts of epoxy resin;

[0029] Material B: isocyanate, crude MDI, index 100-105, 20 parts;

[0030] The flame retardant is a mixture of aluminum hydroxide and trichloropropyl phosphate; the foaming agent is heteropentane; the catalyst is a mixture of triethanolamine:tin oxide=0.1:0.7; the foam stabilizer is silicone oil.

[0031] The preparation method is as follows: First, mix carbon fiber and epoxy resin, mix evenly to form spherical carbon fiber, and then mix carbon fiber with material A and material B, and cast it at one time.

Embodiment 2

[0033] A carbon fiber reinforced rigid polyurethane foam comprising the following components:

[0034] Material A: 100 parts of polyether polyol, 15 parts of flame retardant, 15 parts of foaming agent, 2.5 parts of foam stabilizer, 15 parts of carbon fiber, 2.5 parts of catalyst, 0.15 part of water, 2 parts of epoxy resin;

[0035] Material B: isocyanate, crude MDI, index 100-105, 30 parts;

[0036] The flame retardant is a mixture of aluminum hydroxide and trichloropropyl phosphate; the foaming agent is CFC-11; the catalyst is triethanolamine:tin oxide=0.5:1.0; the foam stabilizer is silicone oil.

[0037] The preparation method is as follows: First, mix carbon fiber and epoxy resin, mix evenly to form spherical carbon fiber, and then mix carbon fiber with material A and material B, and cast it at one time.

Embodiment 3

[0039] A carbon fiber reinforced rigid polyurethane foam comprising the following components:

[0040] Material A: 100 parts of polyether polyol, 10 parts of flame retardant, 10 parts of foaming agent, 2 parts of foam stabilizer, 10 parts of carbon fiber, 2 parts of catalyst, 0.012 parts of water, 1 part of epoxy resin;

[0041] Material B: isocyanate, crude MDI, index 100-105, 20-30 parts;

[0042] The flame retardant is a mixture of aluminum hydroxide and trichloropropyl phosphate; the foaming agent is heteropentane; the catalyst is triethanolamine:tin oxide=0.3:0.9; the foam stabilizer is silicone oil.

[0043] The preparation method is as follows: First, mix carbon fiber and epoxy resin, mix evenly to form spherical carbon fiber, and then mix carbon fiber with material A and material B, and cast it at one time.

[0044] The carbon fiber reinforced rigid polyurethane foam plastics impact performance prepared by above embodiment is as shown in table 1:

[0045] ...

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Abstract

The invention relates to a carbon-fiber reinforced polyurethane foamed plastic which is characterized by comprising the following components: component A: 100 parts of polyether glycol, 5-15 parts of flame retardant, 7-15 parts of foaming agent, 1.5-2.5 parts of foam stabilizer, 5-15 parts of carbon fiber, 1.5-2.5 parts of catalyst, 0.01-0.15 part of water, and epoxy resin; and component B: 20-30 parts of isocyanate (crude MDI (methylenediphenyl diisocyanate)) of which the index is 100-105. The flame retardant is a mixture of aluminum hydroxide and TCPP (trichloropropylphosphate); the foaming agent is CFC-11 or pentane; the catalyst is a mixture of tertiary ammonium salt catalyst and organotin; and the foam stabilizer is organosilicon ketone. The preparation method comprises the following steps: mixing carbon fiber and epoxy resin, evenly mixing to form quasispheric carbon fibers, mixing the carbon fibers with the component A and the component B, and carrying out primary cast molding. The density of the polyurethane material is 0.49g.cm<-3>, the compression modulus is 550MPa, the impact strength is 1.5kJ.m<-2>, and the density, compression modulus, impact strength and other physical and chemical parameter reach the standard at the same time.

Description

technical field [0001] The invention relates to a carbon fiber reinforced polyurethane material, which belongs to the field of plastics. Background technique [0002] Polyurethane foamed plastics are often used as packaging materials, but the compressive strength, compressive modulus, impact strength and loss factor of pure foam materials are difficult to meet the standards at the same time, and other methods of modification and enhancement are needed to improve the relevant properties of the material . Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a carbon fiber reinforced polyurethane foam plastic. [0004] In order to solve the problems of the technologies described above, the present invention is achieved in this way [0005] A carbon fiber reinforced rigid polyurethane foam is characterized in that it comprises the following components: [0006] Material A: 100 parts of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/24C08K7/06C08K3/04C08K3/22C08K5/521C08J9/14
Inventor 费近峰
Owner WUJIANG MINGFENG POLYURETHANE PROD
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