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Environment-friendly fire-proof sealing material and preparation method thereof

A fireproof sealing and environmental protection technology, applied in the field of fireproof sealing, can solve the problems of low service life, poor hydrolysis resistance, inconvenient construction, etc., and achieve the effect of protecting personnel and property safety, excellent product performance and excellent fireproof performance

Inactive Publication Date: 2016-07-27
JILIN ZEXI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such products often use hydrochlorofluorocarbons such as fluorodichloroethane as foaming agents, which generate gas that destroys the atmosphere and causes environmental pollution.
And the commonly used organometallic catalysts have poor hydrolysis resistance, and the service life of the product is low
In addition, the mixing process of the product components requires heating equipment to provide the temperature required for the curing reaction, which is inconvenient for construction and causes application limitations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Made from the following raw materials in parts by weight:

[0020] 100 parts of dihydroxy polyether polyol, 35 parts of tert-butylated aryl phosphate, 20 parts of 80-mesh expandable graphite with expansion ratio greater than 250ml / g, 5 parts of ammonium polyphosphate, 5 parts of melamine, 5 parts of pentaerythritol, hydrogen 5 parts of aluminum oxide, 5 parts of zinc borate, 1 part of distilled water, 2 parts of bis(dimethylaminoethyl) ether, 2 parts of 1,8-diazabicycloundec-7-ene octanoate, iron oxide Add 4 parts of red, mix and stir in the tank for 20 minutes as component A; 50 parts of modified diphenylmethane diisocyanate as component B, and pack components A and B separately according to the weight ratio A:B=100:30 .

Embodiment 2

[0022] Made from the following raw materials in parts by weight:

[0023] 200 parts of dihydroxy polyether polyol, 65 parts of tert-butylated aryl phosphate, 40 parts of 80-mesh expandable graphite with expansion ratio greater than 250ml / g, 10 parts of ammonium polyphosphate, 10 parts of melamine, 10 parts of pentaerythritol, hydrogen 10 parts of aluminum oxide, 10 parts of zinc borate, 4 parts of distilled water, 3 parts of bis(dimethylaminoethyl) ether, 4 parts of 1,8-diazabicycloundec-7-ene octanoate, iron oxide 8 parts of red, add into the tank and mix and stir for 40 minutes as component A. 150 parts of modified diphenylmethane diisocyanate is used as component B. According to the weight ratio A:B=100:40, the components A and B are packaged separately.

Embodiment 3

[0025] Made from the following raw materials in parts by weight:

[0026] 150 parts of dihydroxy polyether polyol, 50 parts of tert-butylated aryl phosphate, 30 parts of 80-mesh expandable graphite with expansion ratio greater than 250ml / g, 7.5 parts of ammonium polyphosphate, 7.5 parts of melamine, 7.5 parts of pentaerythritol, hydrogen 7.5 parts of aluminum oxide, 7.5 parts of zinc borate, 2.5 parts of distilled water, 2.5 parts of bis(dimethylaminoethyl) ether, 3 parts of 1,8-diazabicycloundec-7-ene octanoate, iron oxide Add 6 parts of red, mix and stir in the tank for 30 minutes as component A; 100 parts of modified diphenylmethane diisocyanate as component B, and pack components A and B separately according to the weight ratio A:B=100:35 .

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Abstract

The invention relates to an environment-friendly fire-proof sealing material and a preparation method thereof, and belongs to the technical field of fire-proof sealing.The environment-friendly fire-proof sealing material is prepared from, by weight, 100-200 parts of polyhydric alcohols, 35-65 parts of liquid state fire retardant, 20-40 parts of expanded graphite, 25-50 parts of powder fire retardant, 1-4 parts of a foaming agent, 2-3 parts of an amino alcohol activating agent, 2-4 parts of a thermosensitive catalyst, 4-8 parts of pigment and 50-150 parts of polyisocyanates.The environment-friendly fire-proof sealing material has the advantages that distilled water is used as the polyurethane foaming agent, environment protection is achieved and pollution is avoided; the amino alcohol activating agent is adopted and releases a large amount of heat when reacts with the polyisocyanates so as to provide catalyst temperature needed by the thermosensitive catalyst, and influences of environment temperature on on-site construction are reduced; meanwhile, the environment-friendly fire-proof sealing material has excellent fire-proof performance, releases no halogen poison gas in the fire process, is expanded when encountering fire to prevent flame and smoke from spreading, personnel and property safety can be protected to the maximum degree, the product passes the authentication of national Ministry of Public Security fire product conformity assessment center (CCCF), and relevant performance parameters meet GB-23864 standard requirements.

Description

technical field [0001] The invention relates to the technical field of fireproof sealing, in particular to an environment-friendly fireproof sealing material and a preparation method thereof. Background technique [0002] Fireproof sealing products are mainly used in the fields of hole and gap sealing of bridges, cables, and pipelines in industries such as electric power, rail transit, and construction engineering. Traditional fire-proof sealing products mainly include inorganic fillers, fire-blocking packages, fire-blocking modules, and fire-proof foam sheets. The main ingredient is a halogen-based flame retardant, which releases toxic fumes when it is burned in a fire. With the development of the industry, the birth of some silicone glue, epoxy resin, and polyurethane sealing materials has also improved the defects and disadvantages of these products. However, such products often use hydrochlorofluorocarbons such as fluorodichloroethane as blowing agents, which generate ...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08K13/04C08K7/24C08K3/32C08K5/3492C08K3/22C08J9/08
CPCC08G18/3228C08G18/3271C08G18/4277C08G18/4825C08G18/4829C08G18/6685C08G18/6688C08G2190/00C08K3/22C08K3/32C08K5/34922C08K7/24C08K13/04C08K2003/2227C08K2003/323C08G2110/0083
Inventor 唐佳
Owner JILIN ZEXI TECH DEV
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