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A kind of erosion-resistant polyurethane composite material

A composite material and polyurethane technology, which is applied in the field of wear-resistant coatings, can solve the problems of low strength of composite materials, inability to be widely used, and unsatisfactory effects, and achieve excellent erosion resistance, not easy to shake off, and increase the number of hard points Effect

Active Publication Date: 2018-10-26
浙江尔原聚氨酯股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the wear resistance of these materials is simply improved, the cost is often high and the income is relatively low. Therefore, considering the cost, technicians consider using low-cost composite materials to improve the wear resistance, but the effect is not satisfactory. The composite material itself cannot be widely used due to its low strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An erosion-resistant polyurethane composite material, the polyurethane composite material is composed of the following raw materials in parts by weight: 95 parts of polyurethane prepolymer, 4 parts of polyurethane toughening agent, 6 parts of modified rare earth oxide powder, superfine vanadium oxide powder 5 parts, 10 parts of carbon fiber, 4 parts of silane coupling agent, 35 parts of curing agent, 2 parts of defoamer, 160 parts of silica particles, 2 parts of rare earth dithiocarbamate accelerator and 3 parts of anti-aging agent. Among them, the silica particles are composed of a mixture of two specifications with a particle size of 0.1-0.3mm and a particle size of 0.5-0.7mm. The mass ratio of silicon oxide particles to 0.5-0.7mm (the particle size is not specifically limited, but within 0.5-0.7mm) particle size silicon dioxide particles is 1:2; the anti-aging agent is lanthanum p-aminobenzenesulfonate anti-aging agent , the toughening agent is polyurethane, the part...

Embodiment 2

[0036] An erosion-resistant polyurethane composite material, the polyurethane composite material is composed of the following raw materials in parts by weight: 96 parts of polyurethane prepolymer, 3 parts of polyurethane toughening agent, 6 parts of modified rare earth oxide powder, superfine vanadium oxide powder 4 parts, 9 parts of carbon fiber, 3 parts of silane coupling agent, 37 parts of curing agent, 2 parts of defoaming agent, 170 parts of silica particles, 2 parts of rare earth dithiocarbamate accelerator and 4 parts of anti-aging agent. Among them, the silica particles are composed of a mixture of two specifications with a particle size of 0.1-0.3mm and a particle size of 0.5-0.7mm. The mass ratio of silicon oxide particles to 0.5-0.7mm (the particle size is not specifically limited, but within 0.5-0.7mm) particle size silicon dioxide particles is 1:2; the anti-aging agent is lanthanum p-aminobenzenesulfonate anti-aging agent , the toughening agent is polyurethane, th...

Embodiment 3

[0047] An erosion-resistant polyurethane composite material, the polyurethane composite material is composed of the following raw materials in parts by weight: 90 parts of polyurethane prepolymer, 2 parts of polyurethane toughening agent, 5 parts of modified rare earth oxide powder, superfine vanadium oxide powder 3 parts, 8 parts of carbon fiber, 1 part of silane coupling agent, 30 parts of curing agent, 1 part of defoamer, 150 parts of silica particles, 1 part of rare earth dithiocarbamate accelerator and 1 part of anti-aging agent. Among them, the silica particles are composed of a mixture of two specifications with a particle size of 0.1-0.3mm and a particle size of 0.5-0.7mm. The mass ratio of silicon oxide particles to 0.5-0.7mm (the particle size is not specifically limited, but within 0.5-0.7mm) particle size silicon dioxide particles is 1:2; the anti-aging agent is lanthanum p-aminobenzenesulfonate anti-aging agent , the toughening agent is polyurethane, the particle ...

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Abstract

The invention discloses a washing-resistance polyurethane composite material. The polyurethane composite material comprises the following materials in parts by weight: 90-100 parts of a polyurethane prepolymer, 2-6 parts of a polyurethane flexibilizer, 5-7 parts of modified rare-earth oxide powder, 3-6 parts of ultrafine vanadium-oxide powder, 8-11 parts of carbon fiber, 1-5 part of silane coupling agent, 30-40 parts of a curing agent, 1-3 parts of a defoaming agent, 150-180 parts of silicon dioxide particles, 1-3 parts of a dithiocarbamic-acid rare earth promoter and 1-5 parts of an anti-aging agent. The washing-resistance polyurethane composite material disclosed by the invention has the advantages that the erosion-wear resistance is excellent, the bonding strength is higher, the filler such as silicon dioxide and the like are not like to fall off, and the washing-resistance polyurethane composite material is superior to the existing polyurethane wear-resistant coating; moreover, the mechanical property is excellent, the adaptability is stronger, the heat dissipation is good, the service cycle is longer than that of common organic coatings, and the use cost of an enterprise is lower.

Description

technical field [0001] The invention relates to the field of wear-resistant coatings, in particular to an erosion-resistant polyurethane composite material. Background technique [0002] In the field of mining machinery, wear-resistant materials account for a large proportion and are consumables with relatively large consumption. In the machine-made sand production process, the washing wear-resistant liner of the sand washing machine and the wear-resistant mortar conveying pipeline often cause serious surface wear due to the impact of materials and long-term operation, which greatly shortens the service life of wear-resistant materials and increases Maintenance costs. For example, in building construction equipment, mixing blades, guard plates and flow-through components in concrete and asphalt mixers often fail prematurely due to the impact of concrete. Through the analysis of the failure causes of the failed components, it is concluded that these components mainly failed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/62C09D7/63C09D5/08
CPCC08L2205/025C09D5/08C09D175/04C08L75/04C08K13/06C08K9/06C08K2003/221C08K3/36C08K5/39C08K7/06
Inventor 许霞
Owner 浙江尔原聚氨酯股份有限公司
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