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Epoxy resin modified polyisocyanurate high temperature-resistant rigid foamed plastic and preparation method thereof

A technology of rigid foam plastic and polyisocyanurate, which is applied in the field of polyisocyanurate high temperature-resistant rigid foam plastic and its preparation, and achieves good brittleness and thermal insulation performance, excellent thermal stability, and excellent absorption and isolation. Effects of acoustic properties and flame retardant properties

Inactive Publication Date: 2013-04-24
JIANGSU KETAI NEW HEAT INSULATION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some special pipes, equipment and buildings have higher requirements for thermal insulation or thermal stability. At this time, the existing HDPIR materials cannot meet the requirements. If the temperature resistance can be improved, the application range of HDPIR materials will be expanded. expand further

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An epoxy resin modified polyisocyanurate high temperature resistant rigid foam plastic, comprising a modified mixture and an isocyanate, the mass ratio of the modified mixture to the isocyanate is 1:1.15; in terms of mass percentage, The modified mixture contains the following components:

[0032] Polyether polyol: 32.8%

[0033] Epoxy resin: 24.6%

[0034] Foam leveling agent: 2.6%

[0035] Catalyst: 4.0%

[0036] Foaming agent: 36.0%.

[0037] The polyether polyol is polyether 4110, the epoxy resin is a bisphenol A epoxy resin, the catalyst is a catalyst MC, and the foam stabilizer is a SiC polyurethane foam stabilizer. The blowing agent is F-11, and the isocyanate is MR-100.

[0038] The preparation process is:

[0039] (1) Weigh the polyether polyol, epoxy resin, foam leveling agent, catalyst and blowing agent in a container, and mix them to obtain a modified mixture solution;

[0040] (2) Add isocyanate PAPI to the modified mixture solution obtained in step (1) in proportion, ...

Embodiment 2

[0043] An epoxy resin modified polyisocyanurate high temperature resistant rigid foam plastic, comprising a modified mixture and an isocyanate, and the mass ratio of the modified mixture to the isocyanate is 1:1.10; in terms of mass percentage, The modified mixture contains the following components:

[0044] Polyether polyol: 30%

[0045] Epoxy resin: 25%

[0046] Foam leveling agent: 3%

[0047] Catalyst: 3%

[0048] Foaming agent: 39%.

[0049] The polyether polyol is polyether 635, the epoxy resin is a bisphenol A epoxy resin, the catalyst is a catalyst MC, and the foam stabilizer is a SiC polyurethane foam stabilizer. The blowing agent is F-11, and the isocyanate is MR-100.

[0050] The preparation process is:

[0051] (1) Weigh the polyether polyol, epoxy resin, foam leveling agent, catalyst and blowing agent in a container, and mix them to obtain a modified mixture solution;

[0052] (2) Add isocyanate PAPI to the modified mixture solution obtained in step (1) in proportion, stir an...

Embodiment 3

[0055] An epoxy resin modified polyisocyanurate high temperature resistant rigid foam plastic, comprising a modified mixture and an isocyanate, the mass ratio of the modified mixture to the isocyanate is 1:1.15; in terms of mass percentage, The modified mixture contains the following components:

[0056] Polyether polyol: 35%

[0057] Epoxy resin: 26.4%

[0058] Foam leveling agent: 3%

[0059] Catalyst: 3.6%

[0060] Foaming agent: 32%.

[0061] The polyether polyol is polyether 4110, the epoxy resin is a fatty acid type epoxy resin, the catalyst is DMP-30, the foam stabilizer is a SiC polyurethane foam stabilizer, and the The blowing agent is F-11, and the isocyanate is MR-100.

[0062] The preparation process is:

[0063] (1) Weigh the polyether polyol, epoxy resin, foam leveling agent, catalyst and blowing agent in a container, and mix them to obtain a modified mixture solution;

[0064] (2) Add isocyanate PAPI to the modified mixture solution obtained in step (1) in proportion, stir ...

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Abstract

The invention discloses an epoxy resin modified polyisocyanurate high temperature-resistant rigid foamed plastic and a preparation method thereof. The high temperature-resistant rigid foamed plastic comprises a modified mixture and isocyanate, wherein the mass ratio of the modified mixture to the isocyanate is 1:(1.10-1.15); and the modified mixture comprises the following components by mass percent: 30%-35% of polyether glycol, 22%-27% of epoxy resin, 0.5-5% of foam stabilizer, 2-6% of catalyst and 32%-40% of foaming agent. The epoxy resin modified polyisocyanurate high temperature-resistant rigid foamed plastic is used for ideal uniform foam structures, and has excellent thermal stability at high temperatures, good product brittleness and thermal insulation performance, and excellent sound absorption performance and flame retardance.

Description

Technical field: [0001] The invention relates to an epoxy resin modified polyisocyanurate high temperature resistant rigid foam plastic and a preparation method thereof. technical background: [0002] Polyisocyanurate rigid foam (HDPIR) is used for various pipes and equipment in the range of -200℃~+120℃, as well as the insulation requirements of buildings. This high-tech organic polymer material has excellent fire resistance, low thermal conductivity, good water resistance, stable chemical properties, and has excellent linear expansion coefficient and compressive strength, and strong aging resistance. It is used for deep cold and general The best choice for thermal insulation polymer materials in cold temperature environments. However, some special pipes, equipment and buildings have higher requirements for thermal insulation or thermal stability. At this time, the existing HDPIR materials cannot meet the requirements. If the temperature resistance can be improved, the applicati...

Claims

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Application Information

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IPC IPC(8): C08G18/58C08G18/48C08J9/04C08L75/08C08G101/00
Inventor 黄伟洪曹晖
Owner JIANGSU KETAI NEW HEAT INSULATION MATERIAL
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