Shock-insulating polyurethane elastomer material composition and preparation method thereof

A technology of polyurethane elastomer and material composition, which is applied in the field of two-component room temperature curing polyurethane elastomer composition and its preparation, and can solve the problems of heat insulation, sound insulation, unsatisfactory shock absorption, and unreported shock isolation performance, etc. , to achieve great economic significance, improve seismic isolation performance, and improve the effect of dynamic performance

Inactive Publication Date: 2017-06-20
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that most of the existing composite materials are solid structures, and their effects in heat insulation, sound insulation, shock absorption, etc. are not ideal
[0009] However, there is no report in the prior art that the combination of polyurethane elastomer and hollow microspheres can improve its shock isolation performance, and can also improve the dynamic performance of polyurethane elastomer, maintain strong mechanical properties, and achieve a good shock absorption effect.

Method used

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  • Shock-insulating polyurethane elastomer material composition and preparation method thereof
  • Shock-insulating polyurethane elastomer material composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A component: polyol component: obtain according to following preparation method: by weight, the polypropylene oxide ether polyol (GEP-3600) 60 of molecular weight 6000, the graft polyether polyol (GPOP-3600) that molecular weight is 6000 36 / 28) 40, chain extender E-300, 14.5, chain extender 1,4-BDO6.4, ultraviolet absorber UV-P 0.5, catalyst dibutyltin dilaurate 0.05, catalyst A33 0.1, barium sulfate 15, Organic hollow microspheres WU-150W 0.5, antioxidant 1010, 0.5, defoamer BYK-066N0.6, mixed and stirred at 100±10°C, vacuum degree -0.1MPa, and vacuumed.

[0054] Component B: Isocyanate component: Obtained according to the following preparation method: In weight percentage, PM-200 and MDI-50 are mixed according to the mass ratio of 1:1

[0055] The isocyanate component and the polyol component are mixed and reacted with a chain extension coefficient of 0.90. The mixing temperature and curing temperature are at room temperature, and the gelation takes 40 minutes. The sa...

Embodiment 2

[0064] A component: polyol component: obtain according to following preparation method: by weight, the polypropylene oxide ether polyol (GEP-3600)70 of molecular weight 6000, the graft polyether polyol (GPOP-3600) that molecular weight is 6000 36 / 28) 30, chain extender E-30014.5, chain extender 1,4-BDO 6.4, ultraviolet absorber UV-P 0.5, catalyst dibutyltin dilaurate 0.05, catalyst A33 0.1, barium sulfate 15, organic hollow micro Ball WU-150W 0.8, antioxidant 1010 0.5, defoamer BYK-066N 0.6, mix and stir at 100±10°C, vacuum degree -0.1MPa, and vacuumize.

[0065] Component B: Isocyanate component: obtained according to the following preparation method: in weight percentage, PM-200 and MDI-50 are mixed according to the mass ratio of 60:40

[0066] The isocyanate component and the polyol component were mixed and reacted with a chain extension coefficient ratio of 0.90. The mixing temperature and curing temperature were at room temperature, gelled in 40 minutes, demolded after 24...

Embodiment 3

[0068] A component: polyol component: obtain according to following preparation method: by weight, the polypropylene oxide ether polyol (GEP-3600) 60 of molecular weight 6000, the graft polyether polyol (GPOP-3600) that molecular weight is 6000 36 / 28)40, chain extender E-30014.5, chain extender 1,4-BDO6.4, ultraviolet absorber UV-P 0.5, catalyst dibutyltin dilaurate 0.05, catalyst A33 0.1, barium sulfate 15, organic hollow Microsphere WU-150W 0.5, antioxidant 1010 0.5, defoamer BYK-066N 0.6, mix and stir at 100±10°C, vacuum degree -0.1MPa, and vacuumize.

[0069] Component B: isocyanate component: obtained according to the following preparation method: in weight percentage, 57% of polypropylene oxide ether polyol (Tdiol-1000 and Tdiol-2000) with 2 functionalities and molecular weight of 1000-2000, diphenyl Methane diisocyanate (MDI-100) 43%, react at 80°C for 2-3 hours to obtain a prepolymer with an isocyanate content of 13%.

[0070] The isocyanate component and the polyol c...

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Abstract

The invention relates to a shock-insulating polyurethane elastomer material composition and a preparation method thereof. A double-component system is adopted to be mixed, poured and cured to be shaped under normal temperature and normal pressure, so that a shock-insulating polyurethane elastomer material is obtained, the static stiffness can be controlled at 12kN / mm to 18kN / mm, the density is 0.95g / cm<3> to 1.0g / cm<3>, and the resistance value is 108Omega to 1010Omega. According to the method, materials can be easily obtained, the process is simple, the cost is low, and the shock-insulating polyurethane elastomer material composition can be continuously produced on a large scale, can be constructed on the site, and is mainly applied in the shock insulation of buildings and rail transit, and the shock insulation of other constructions.

Description

technical field [0001] The invention belongs to a method for producing a polyurethane elastomer, in particular to a composition of two-component room-temperature-curable polyurethane elastomer for producing shock-absorbing materials and a preparation method thereof. Background technique [0002] Polyurethane material is a linear or cross-linked polymer with polyol as soft segment, isocyanate and chain extender as hard segment, which contains a large number of carbamate groups and has a block structure with alternating soft and hard segments. Excellent mechanical properties, wear resistance, oil resistance, low temperature resistance, shock absorption and other properties, and can be mixed and poured on site at room temperature, and cured at room temperature to form a low-hardness shock-isolation elastomer material. Elastomer materials that meet the requirements of shock isolation, such as mechanical properties, dynamic properties, and electrical properties, can be obtained t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/64C08G18/32C08K13/02C08K3/30C08J9/14C08L75/08C08G101/00
CPCC08G18/6674C08G18/3206C08G18/3857C08G18/4081C08G18/4816C08G18/4825C08G18/4829C08G18/64C08G18/6511C08G18/6529C08G18/6685C08G2101/00C08G2350/00C08J9/141C08J2203/14C08J2375/08C08K3/30C08K13/02C08K2003/3045
Inventor 刘锦春林晓甜姜凌
Owner QINGDAO UNIV OF SCI & TECH
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