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Thermosetting foam with improved thermal insulation and flame retardancy, and preparation method therefor

A technology of thermosetting and foaming body, applied in the field of thermosetting foaming agent and its preparation, can solve the problems of reduction of physical properties and thermal insulation performance of thermosetting foaming body, achieve low thermal conductivity, outstanding flame retardant sexual effect

Inactive Publication Date: 2015-04-22
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Korean Patent No. 10-0610392 describes a thermoplastic resin-based flame retardant development that includes a step of continuously dissolving a fluidized bed foaming agent in the thermoplastic resin after kneading a thermoplastic resin and a flame retardant to grow foam cells. The preparation method of the foaming agent, but adding a flame retardant, this relative to the increase of the flame retardancy, the physical properties and heat insulation performance of the thermosetting foam may decrease

Method used

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  • Thermosetting foam with improved thermal insulation and flame retardancy, and preparation method therefor
  • Thermosetting foam with improved thermal insulation and flame retardancy, and preparation method therefor

Examples

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preparation example Construction

[0054] Method for preparing thermosetting foam

[0055] Yet another example of the present invention provides a method for preparing a thermosetting foam, the method for preparing the above thermosetting foam includes: a step of mixing a polyol compound and a nucleating agent, the polyol compound and the nucleating agent The step of adding a flame retardant to the mixture, and the step of stirring isocyanate compounds in the mixture obtained after adding the above flame retardant to polymerize polyisocyanurate; the starting temperature according to the thermogravimetric analysis method is 310°C above. The thermal decomposition onset temperature may be above about 310° C., which is as described above.

[0056] The speed of mixing the polyol compound and the nucleating agent in the step of mixing the polyol compound and the nucleating agent may be about 500 rpm to about 5000 rpm. For the uniform dispersion of polyol compounds and nucleating agents, mix at a low speed of about ...

Embodiment 1

[0065] 3.0 g of tetramethylsilane (TMS, Tetramethyl silane) as a nucleating agent and 1.0 g of cumyl diphenyl phosphate (IPPP, IsoPropylPhenyl Diphenyl Phosphate) as a flame retardant were added to 100 g of polyol by weight. A mixture of polyether polyol and polyester polyol was mixed at a weight ratio of 4:6 and used as the polyol. Compared with the tetramethylsilane used as a nucleating agent, the viscosity of the polyol used is high. Therefore, in order to allow the tetramethylsilane to be well inserted between the polyol compounds, a mechanical stirrer (mechanical stirrer) is used. In the early stage of the reaction, stir at a low speed of 500rpm for 30 seconds (stirring in the first step), and then stir respectively at speeds of 1000rpm, 2000rpm, 3000rpm, 4000rpm, and 5000rpm (stirring in the second step) for 30 seconds to prepare a mixed solution.

[0066] Add 1.0 g of cumyl diphenyl phosphate (IPPP, IsoPropylPhenyl Diphenyl Phosphate) as a flame retardant to the above m...

Embodiment 2

[0068] A thermosetting foam was prepared in the same manner as in Example 1 above, except that the amount of cumyl diphenyl phosphate (IPPP, IsoPropylPhenyl Diphenyl Phosphate) as a flame retardant was increased to 3.0 g.

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Abstract

Provided is a thermosetting foam comprising: a polyisocyanurate foam formed by polymerizing a polyol-based compound and an isocyanate-based compound; a nucleating agent; and a flame retardant, wherein the thermal decomposition initiation temperature of the thermosetting foam measured by thermogravimetric analysis is 310 ℃ or higher. In addition, provided is a method for preparing a thermosetting foam having the thermal decomposition initiation temperature measured by thermogravimetric analysis of 310 ℃ or higher, comprising the steps of: mixing a polyol-based compound and a nucleating agent; adding a flame retardant to the mixture of the polyol-based compound and the nucleating agent; stirring an isocyanate-based compound with the mixture obtained by adding the flame retardant thereto to polymerize a polyisocyanurate.

Description

technical field [0001] The present invention relates to a thermosetting foam and a preparation method thereof, and more specifically relates to a thermosetting foaming agent having improved heat insulation and flame retardancy and a preparation method thereof. Background technique [0002] Thermosetting foams are mainly used as heat insulation materials for various buildings, warehouses, and refrigerators. At this time, heat insulation materials are widely used as materials for blocking or reducing heat exchange between the interior and exterior of buildings to increase cooling and heating efficiency, and are widely used in building panels and panels, cold insulation materials for liquefied natural gas carriers (LNG ships), Thermosetting foaming agents used in heat insulating materials in various fields such as home appliance packaging materials and automotive interior materials can be formed in a foam cell structure filled with foaming gas in order to improve heat insulatio...

Claims

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Application Information

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IPC IPC(8): C08J9/00C08G18/06C08L75/00
CPCC08G2105/02C08K5/0066C08G18/092C08G2101/00C08G2115/02C08L75/04C08G18/06C08J9/00C08L75/00
Inventor 金志纹李应基崔哲准金明姬池升昱全昺朱
Owner LG HAUSYS LTD
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