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Polyurethane foam capable of being poured at room temperature

A polyurethane foam and conditioning technology, applied in the field of polyurethane foam, can solve the problems of inconvenient construction and difficulty in accurately controlling material temperature according to process requirements, so as to avoid inconvenience, improve construction processability, and meet the effects of low temperature insulation

Inactive Publication Date: 2013-01-16
天津市艾迪聚氨酯工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the temperature of raw materials is much lower than the usual ambient temperature, ice cubes or liquid nitrogen are generally used to cool down in construction sites without cooling equipment, especially in local heat insulation and heat insulation structure repairs. During use, the material temperature is difficult to meet the process requirements. The problem of accurate control is not convenient for construction

Method used

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  • Polyurethane foam capable of being poured at room temperature
  • Polyurethane foam capable of being poured at room temperature
  • Polyurethane foam capable of being poured at room temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Composition of the invention

[0015]

[0016] Mix the prepared materials according to the above ratio, stir evenly and pour into the self-made mold for foaming. After the foam plastic is set, place it for a specified time before demoulding.

Embodiment 2

[0018] Composition of the invention

[0019]

[0020] Mix the prepared materials according to the above ratio, stir evenly and pour into the self-made mold for foaming. After the foam plastic is set, place it for a specified time before demoulding.

Embodiment 3

[0022] Composition of the invention

[0023]

[0024] Mix the prepared materials according to the above ratio, stir evenly and pour into the self-made mold for foaming. After the foam plastic is set, place it for a specified time before demoulding.

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Abstract

The invention provides a formula of polyurethane foam capable of being poured at room temperature. The formula comprises polyether, polyisocyanate, a triethylene diamine solution and dibutyltin dilaurate. Through selection and ratio regulation of catalysts, namely the triethylene diamine solution and the dibutyltin dilaurate, polyurethane plastics can be poured and molded at room temperature, and a problem that the polyurethane plastics cannot be poured and molded at low temperature in China at present is solved.

Description

technical field [0001] The invention relates to the construction field, in particular to a polyurethane foam that can be poured at room temperature. Background technique [0002] Polyurethane foam is widely used as a thermal insulation material due to its low density and low thermal conductivity. In the field of aerospace, the liquid hydrogen storage tanks and delivery pipeline systems of Russian Energia, Proton, and the US Space Shuttle are all insulated with polyurethane foam. The molding process of foam plastic mainly includes spraying and pouring. The spraying process is suitable for large-scale construction, and is mostly used for heat insulation of large boxes; Partial insulation and repair of insulation structures, etc. At present, the pouring process of foam plastics used for ultra-low temperature insulation in my country is mainly manual operation, and the temperature of raw materials is required to be controlled at 2-5°C, and refrigerators are used to cool down. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/18C08G18/24C08G18/48C08G101/00
Inventor 董伟
Owner 天津市艾迪聚氨酯工业有限公司
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