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Novel core material for inorganic-organic composite heat preservation board

A composite thermal insulation and organic technology, applied in the field of building thermal insulation materials, can solve problems such as poor flame retardancy, high cost, and toxic gas hazards, and achieve the effects of improving mechanical properties, improving fluidity, and low cost

Inactive Publication Date: 2014-06-25
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Problems with current core materials include: high cost, poor flame retardancy, and toxic gas hazards after burning

Method used

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  • Novel core material for inorganic-organic composite heat preservation board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, 500g of fly ash hollow glass microspheres were surface-modified with 5g of rare earth titanate coupling agent, and then extruded with 500g of expandable polystyrene and 150g of expandable graphite using a twin-screw extruder. Granules to make master batches, and finally take the master batches as raw materials, add foaming agent, and extrude at 180-200 °C with an extruder to obtain core materials.

[0022] In order to verify the performance of a novel core material for an inorganic-organic composite insulation board provided by the present invention, the experimental results of Example 1 show that the core material has an oxygen index of 42%, a thermal conductivity of 0.031W / m K, and a compressive strength of 160kPa . The foamed concrete is used as the outer thermal insulation layer and combined with the core material, an inorganic-organic composite thermal insulation board whose combustion performance reaches A2 level can be prepared.

Embodiment 2

[0024] First, 800g of fly ash hollow glass microspheres were surface-modified with 8g of rare earth titanate coupling agent, and then extruded with 400g of expandable polystyrene and 50g of expandable graphite using a twin-screw extruder. Granules to make master batches, and finally take the master batches as raw materials, add foaming agent, and extrude at 180-200 °C with an extruder to obtain core materials.

Embodiment 3

[0026] First, 700g of fly ash hollow glass microspheres were surface-modified with 7g of rare earth titanate coupling agent, and then extruded with 650g of expandable polystyrene and 200g of expandable graphite using a twin-screw extruder. Granules to make master batches, and finally take the master batches as raw materials, add foaming agent, and extrude at 180-200 °C with an extruder to obtain core materials.

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Abstract

The invention relates to a novel core material for an inorganic-organic composite heat preservation board. A building heat preservation board is prepared from expandable polystyrene in which a large quantity of pulverized fuel ash hollow glass microspheres are doped through an extrusion technology in the presence of expandable graphite sreving as a fire retardant. The board can serve as a core material of the inorganic-organic composite heat preservation board. The core material of the inorganic-organic composite heat preservation board has the advantages of low cost, light weight and excellent heat preservation and flame retardant effects. The novel core material can be combined with other inorganic materials for preparing the inorganic-organic composite heat preservation board.

Description

technical field [0001] The invention belongs to the field of building thermal insulation materials, and relates to a new type of core material for an inorganic-organic composite thermal insulation board, in particular to a hollow glass microstructure with expandable polystyrene as the base material, a large amount of fly ash, and expandable graphite. It is a flame retardant and can be used as a building insulation board for inorganic-organic composite insulation board core materials prepared by extrusion molding. Background technique [0002] Building insulation materials are classified according to their materials, which can be divided into three categories: inorganic insulation materials, organic insulation materials and inorganic-organic composite insulation materials. The comprehensive performance of inorganic-organic composite insulation materials is the best, which combines inorganic insulation materials and organic insulation materials. The advantages of thermal insul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08K9/04C08K7/28C08K7/24C08K3/04C08J9/04
Inventor 李军伟倪文萍郭丽丽商冬洁刘志锋
Owner TIANJIN CHENGJIAN UNIV
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