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Composite material of polyether block amide monomer foamed particles and polyurethane and preparation method and application of composite material of polyether block amide monomer foamed particles and polyurethane

A technology of foamed particles and polyether amide, which is applied in the field of composite materials of block polyether amide elastomer foamed particles and polyurethane and its preparation, can solve the problems of low yield, high price, single appearance of products, etc., and achieve Effects of high compression deformation resistance, high bending fatigue resistance, and excellent tensile strength

Inactive Publication Date: 2019-09-17
MIRACLL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Invention patent CN 106687511A discloses an amide-based elastomer foamed particle and its manufacturing method, and also discloses a foamed foam obtained by putting the amide-based elastomer foamed particle into a mold and forming it by a steam melt molding process. However, due to the disadvantages of high price of steam molding equipment, low production efficiency, single appearance and low yield rate of the obtained products, the wider application of ETPAE materials is limited.
[0004] WO2008 / 087078 discloses a hybrid system containing foamed thermoplastic polyurethane elastomer (ETPU) and polyurethane, which introduces the ETPU material into the polyurethane matrix material, and a hybrid material described in it can be applied to shoe soles, bicycle seats and Pedals, etc., the products of the application are long-term use stress materials and need to be used in outdoor environments, but the wear resistance, low temperature resistance and compression deformation resistance of ETPU materials cannot be used in special environments or special application fields. Requirements, with the development of human society, people will never stop exploring more excellent materials, ETPAE materials have more excellent performance than ETPU materials, ETPAE materials have a wider range of applications

Method used

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  • Composite material of polyether block amide monomer foamed particles and polyurethane and preparation method and application of composite material of polyether block amide monomer foamed particles and polyurethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) The block polyether amide elastomer foamed particles of 100g, the NCO content of 60g are the one-component polyurethane reactive hot-melt adhesive of 10%, the water of 6g, the dibutyltin dilaurate of 0.2g mix Evenly put into the mold, the density of the block polyether amide elastomer foamed particles is 0.175g / cm 3 , the shape is ellipsoid, the major diameter length is 4mm;

[0034] (2) Close the mold, pressurize and cure, the curing temperature is 70°C, the curing time is 6 minutes, and the pressurized pressure is 1MPa;

[0035] (3) Cool the mold temperature to 30° C., open the mold, and obtain a composite material of block polyetheramide elastomer foamed particles and polyurethane. The performance test data of the prepared composite material are shown in Table 1 below.

Embodiment 2

[0037] (1) The block polyether amide elastomer foamed particles of 100g, the NCO content of 200g are the one-component polyurethane reactive hot-melt adhesive of 20%, the water of 12g, the stannous dilaurate diacetic acid of 0.5g Dibutyltin is mixed evenly and put into the mold, in which the density of the block polyether amide elastomer foamed particles is 0.1g / cm 3 , the shape is spherical, the major diameter length is 8mm;

[0038] (2) Close the mold, pressurize and cure, the curing temperature is 100°C, the curing time is 4 minutes, and the pressurized pressure is 0.5MPa;

[0039] (3) Cool the mold temperature to 20°C and open the mold to obtain a composite material of block polyetheramide elastomer foamed particles and polyurethane. The performance test data of the prepared composite material are shown in Table 1 below.

Embodiment 3

[0041](1) Put 100g of block polyetheramide elastomer foamed particles, 30g of one-component polyurethane reactive hot melt adhesive with an NCO content of 1%, 1g of water, and 1g of triethylamine into the mold , wherein the density of block polyetheramide elastomer foamed particles is 0.5g / cm 3 , the shape is cylindrical, the major diameter length is 20mm;

[0042] (2) Close the mold, pressurize and cure, the curing temperature is 50°C, the curing time is 16 minutes, and the pressurized pressure is 5MPa;

[0043] (3) Cool the mold temperature to 30°C and open the mold to obtain a composite material of block polyetheramide elastomer foamed particles and polyurethane. The performance test data of the prepared composite material are shown in Table 1 below.

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Abstract

The invention belongs to the field of lightweight materials, and particularly relates to a composite material of polyether block amide monomer foamed particles and polyurethane and a preparation method and application of the composite material of the polyether block amide monomer foamed particles and the polyurethane. The composite material comprises the polyurethane and the polyether block amide monomer foamed particles which are embedded into a polyurethane matrix, wherein the diameter of the foamed particles is 0.5-20 mm, the density of the foamed particles is 0.05-0.5 g / cm<3>, and the surfaces of the foamed particles are of closed pore structures. The prepared composite material has excellent tensile strength, low-temperature flexibility, high flexural fatigue resistance performance, high compressive deformation resistance performance and high rebound resilience, and can be effectively applied in shoe soles, tyres, bicycle saddles, interior decoration, buffer cushions, sound insulating pads, child toys and / or floor coverings.

Description

technical field [0001] The invention belongs to the field of lightweight materials, and in particular relates to a composite material of block polyetheramide elastomer foamed particles and polyurethane, a preparation method and application thereof. Background technique [0002] Polyetheramide thermoplastic elastomer (TPAE) is a block copolymer composed of high melting point crystalline polyamide hard segment and non-crystalline or amorphous polyester or polyether soft segment. Among them, the chemical composition of the hard segment and soft satin, the length of the molecular segment and the ratio of the two are diverse, which also determines the diversity of polyetheramide thermoplastic elastomer materials. In addition, TPAE material has the advantages of high mechanical strength, high toughness, good elasticity, low specific gravity, good bending fatigue resistance, good wear resistance and low temperature resistance. TPAE particles are used as the matrix, and a large num...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L77/00C08J9/236C08J9/35
CPCC08J9/236C08J9/35C08J2375/04C08J2377/00C08J2475/04C08J2477/00
Inventor 杨冲冲宋红玮刘德富任光雷王光阜
Owner MIRACLL CHEM
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