Preparation method of high-temperature resistant modification polyisocyanurate foamed plastic

A technology of polyisocyanurate and foamed plastics, which is applied in the field of preparation of foamed plastics and modified polyisocyanurate foamed plastics, can solve problems such as difficult processing and brittle products, and improve high temperature resistance , Improve the effect of flame retardancy and good high temperature resistance

Active Publication Date: 2013-01-16
江苏赛胜新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its products are too brittle and difficult to process

Method used

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  • Preparation method of high-temperature resistant modification polyisocyanurate foamed plastic
  • Preparation method of high-temperature resistant modification polyisocyanurate foamed plastic

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Embodiment Construction

[0020] The weight proportion of table 1 embodiment 1~embodiment 3

[0021]

[0022] The above-mentioned polyether polyol is polyether polyol 403, and its hydroxyl value is 300KOH / g.

[0023] The aforementioned foam stabilizer is silicone oil.

[0024] The blowing agent mentioned above is cyclopentane.

[0025] The trimerization catalyst mentioned above is potassium isooctanoate.

[0026] The polyisocyanate mentioned above is a diisocyanate with a functionality of 2.10.

[0027] The aforementioned catalyst is tetramethylethylenediamine.

[0028] The above-mentioned phosphate ester flame retardant is triisobutyl phosphate.

[0029] The preparation method is:

[0030] S1: Polyether polyol, phenolic resin, propylene glycol, pentaerythritol, glass fiber, ceramic fiber, foam stabilizer, foaming agent, silane coupling agent, calcium silicate, polydimethylsiloxane, difluorochloro Ethane, trimerization catalyst and flame retardant are mixed evenly in a certain proportion;

[...

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Abstract

The invention provides a preparation method high-temperature resistant modification polyisocyanurate foamed plastic, and belongs to the technical field of high polymer material. The preparation method adopts the following components as raw materials by weight: 30 to 50 parts of polyether polyol, 3 to 5 parts of phenolic resin, 1 to 3 parts of propylene glycol, 1 to 3 parts of pentaerythritol, 1 to 2 parts of glass fiber, 1 to 2 parts of ceramic fiber, 20 to 40 parts of polyisocyanate, 2 to 5 parts of foam stabilizer, 2 to 5 parts of foaming agent, 3 to 7 parts of silane coupling agent, 4 to 7 parts of calcium metasilicate, 3 to 6 parts of polydimethylsiloxane, 3 to 4 parts of difluoromono-chloroethane, 1 to 2 parts of trimerization catalyst, and 1 to 10 parts of fire retardant. The foam material provided by the invention has high heat insulation performance, the physical property of the foam material is not obviously reduced after the foam material is damaged at high temperature, and therefore, high high-temperature resistance is ensured.

Description

technical field [0001] The invention provides a method for preparing a high-temperature-resistant foamed plastic, in particular to a method for preparing a high-temperature-resistant modified polyisocyanurate foamed plastic, which belongs to the technical field of polymer materials. Background technique [0002] The current market situation, especially the start of environmental legislation, such as: the requirement to use blowing agents that do not destroy the ozone layer and the construction industry's requirements on the flame retardancy, smoke emission, and toxicity of building materials are getting higher and stricter . The government uses legal provisions to restrict the production and use of flammable, high-smoke, and highly toxic building materials, which has brought great challenges to polyurethane product manufacturers. Now many ordinary buildings and pipelines use ordinary rigid polyurethane foam as insulation material. This kind of material can withstand the tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/61C08G18/54C08G18/48C08G18/09C08K13/04C08K7/14C08K7/04C08K3/34C08K5/521C08K5/523C08J9/14C08J9/08C08G101/00
Inventor 肖伟荣
Owner 江苏赛胜新材料科技有限公司
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