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High-flame-retardant low-temperature foaming type door and window penetrating strip foaming material, polyurethane foam and preparation method thereof

A polyurethane foam and foaming technology, applied in the field of polyurethane, can solve problems such as endangering life and safety, and achieve the effect of ensuring thermal insulation performance

Active Publication Date: 2021-09-17
SHANGHAI DONGDA POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the fire temperature is higher than 600°C, the aluminum profile will start to melt, and the insulation filling material in the cavity of the profile will also burn out and release toxic fumes, seriously endangering people's lives.

Method used

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  • High-flame-retardant low-temperature foaming type door and window penetrating strip foaming material, polyurethane foam and preparation method thereof
  • High-flame-retardant low-temperature foaming type door and window penetrating strip foaming material, polyurethane foam and preparation method thereof

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preparation example Construction

[0044] In the second aspect, the present invention also provides a method for preparing polyurethane foam for high flame-retardant low-temperature foaming type door and window threading, which includes the following steps: using a low-pressure foaming agent and PAPI to prepare the combined polyether by 30g / s flow rate for mixing, and then poured into the paper strip foaming groove that penetrates into the cavity of the door and window profiles to obtain door and window profiles filled with polyurethane rigid foam.

[0045] In the present invention, the mixing method and conditions of the combined polyether are conventional methods and conditions in the field, and the mixing temperature of the low-pressure foaming machine is ambient temperature, especially around 0°C, which is rare in the field.

[0046] The mixing operation preferably uses a low-pressure foaming agent with a flow rate of 30g / s.

[0047] In the present invention, the foaming method and conditions are conventio...

Embodiment 1

[0071] The preparation method of combination polyether polyol:

[0072] Put 80 parts of polyester polyol AK7004, 5 parts of polyether polyol Donol C305, 5 parts of Donol R6049, and 10 parts of Donol R4040 in the reactor, and add catalysts 1 part of POLYACAT 303, 2 parts of Dabco BX405, 2 parts of K15, 0.5 parts of DABCO T, 2 parts of silicone oil B8545, 0.9 parts of deionized water, 20 parts of TCPP, 20 parts of TEP, 25 parts of blowing agent HFC-245fa and stir well.

[0073] Take the above combination of polyether and PAPI and use a low-pressure foaming machine to inject the material at a flow rate of 30g / s. After foaming and molding at room temperature, the door and window profiles are obtained.

Embodiment 2

[0075] The preparation method of combination polyether polyol:

[0076] Put 80 parts of polyester polyol PS3158, 10 parts of polyether polyol Donol C305, and 10 parts of Donol R4040 in the reaction kettle, and then add 0.5 parts of catalyst POLYACAT 303, 1.5 parts of POLYACAT 8, 3 parts of POLYCAT 41, and 1 part of DABCO T , 3 parts of silicone oil B8545, 0.8 parts of deionized water, 40 parts of TCEP, 23 parts of foaming agent HFC-245fa and stir evenly.

[0077] Take the above combination of polyether and PAPI and use a low-pressure foaming machine to inject the material at a flow rate of 30g / s. After foaming and molding at room temperature, the door and window profiles are obtained.

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Abstract

The invention relates to a high-flame-retardant low-temperature foaming type door and window penetrating strip foaming material which comprises combined polyether polyol and isocyanate and is characterized in that the combined polyether polyol comprises the following components in parts by weight: 80-100 parts of polyester polyol, 10-20 parts of polyether polyol, 4-6 parts of a catalyst, 2-3 parts of a foam stabilizer, 30-40 parts of a flame retardant, 20-25 parts of a physical foaming agent and 0.5-1 part of a chemical foaming agent. The invention further provides high-flame-retardant low-temperature foaming type polyurethane foam for door and window penetrating strips and a preparation method thereof. The foaming material disclosed by the invention can be normally foamed at 0 DEG C, and the flame retardant property can reach the B1 flame retardant grade.

Description

technical field [0001] The present application relates to the field of polyurethane technology. Specifically, the application relates to a high-flame-resistance low-temperature foaming type foaming strip for broken bridge aluminum doors and windows, polyurethane foam and a preparation method thereof. Background technique [0002] In modern buildings, doors and windows are one of the most common components, among which aluminum alloy doors and windows have become the mainstream of consumption due to their advantages of convenient production and installation, and long-term use without deformation. However, aluminum alloy has a better heat conduction effect than wood, which will lead to an increase in energy consumption. With the country's higher and higher requirements for energy saving and consumption reduction, the energy saving of doors and windows has attracted the attention of many scholars. In order to solve the problem of energy saving and heat preservation of doors an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/42C08K5/521C08J9/14C08G101/00
CPCC08G18/7664C08G18/4018C08G18/48C08G18/42C08K5/521C08J9/146C08J2203/142Y02B30/90C08G18/18C08G18/14C08J9/06E06B3/263C08J2203/10C08J2203/184
Inventor 董建国魏路李学庆周剑平
Owner SHANGHAI DONGDA POLYURETHANE