Composite heat insulation material using phenolic resin and perlite as major raw materials and preparation method of composite heat insulation material

A technology of composite thermal insulation material and phenolic resin, which is applied in the field of thermal insulation material and its preparation, can solve the problems of organic thermal insulation materials such as aging resistance, toxic gas emission, large deformation coefficient, etc., and achieve small deformation coefficient, good fire resistance, The effect of long service life

Inactive Publication Date: 2013-01-02
XINYANG NORMAL UNIVERSITY
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Problems solved by technology

[0003] Organic thermal insulation material then mainly contains foamed polystyrene board, extruded polystyrene board, spray polyurethane, phenolic resin foam board etc., as the patent application that publication number is CN101565541; The thermal conductivity of organic thermal insulation material is little, and thermal insulation effect is good, but,

Method used

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  • Composite heat insulation material using phenolic resin and perlite as major raw materials and preparation method of composite heat insulation material

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preparation example Construction

[0030] Its specific preparation method steps are as follows:

[0031] (1) Grind the solid phenolic resin to 80~100 mesh or choose powdery resin directly, and choose a bulk density of 80~150 kg / m 3 Spherical closed-cell expanded perlite bulk;

[0032] (2) According to the mass fraction of resin 20~70%, expanded perlite 30~80%, auxiliary agent 5~10% to prepare raw materials;

[0033] (3) Fully mix the raw materials in step (2) evenly, and put them into a steel mold;

[0034] (4) Under the conditions of compression ratio of 1.25-2.5 and hot-pressing temperature of 200-240°C, hot-pressing and holding pressure for 1.5-2.5 hours, a composite insulation material with phenolic resin and perlite as the main raw materials can be obtained.

Embodiment 1

[0036] (1) Grind the solid boron-modified phenolic resin to 80-100 mesh; choose a bulk density of 80-150 kg / m 3 Spherical closed-cell expanded perlite bulk; choose silicone water repellent, hexamethylenetetramine curing agent, zinc stearate lubricant, and nitrile rubber toughening agent.

[0037] (2) According to the mass fraction of resin 40%, expanded perlite 50%, additives 10% (including 1% water-repellent agent, 7% curing agent, 1% lubricant, 1% toughening agent) to prepare raw materials.

[0038] (3) Mix the raw materials thoroughly and evenly, and put them into steel molds.

[0039] (4) Under the condition of compression ratio of 1.67 and hot pressing temperature of 220 °C, hot pressing was performed, and the pressure was maintained for 2 hours to obtain a phenolic resin / perlite composite insulation material.

[0040] The obtained phenolic resin / perlite composite insulation material sample has an apparent density of 290 Kg / m 3 , thermal conductivity 0.042 W / (m﹐K), comp...

Embodiment 2

[0042] (1) Grind the solid boron-modified phenolic resin to 80-100 mesh; choose a bulk density of 80-150 kg / m 3 Spherical closed-cell expanded perlite bulk; choose silicone water repellent, hexamethylenetetramine curing agent, zinc stearate lubricant, and nitrile rubber toughening agent.

[0043] (2) According to the mass fraction of resin 40%, expanded perlite 50%, additives 10% (including 1% water-repellent agent, 7% curing agent, 1% lubricant, 1% toughening agent) to prepare raw materials.

[0044] (3) Mix the raw materials thoroughly and evenly, and put them into steel molds.

[0045] (4) Under the conditions of compression ratio of 2 and hot pressing temperature of 220 °C, hot pressing was performed, and the pressure was maintained for 2 hours to obtain a phenolic resin / perlite composite insulation material.

[0046] The obtained phenolic resin / perlite composite insulation material sample has an apparent density of 320 Kg / m 3 , thermal conductivity 0.048 W / (m﹐K), compre...

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Abstract

The invention discloses a composite heat insulation material using phenolic resin and perlite as major raw materials and a preparation method of the composite heat insulation material. The phenolic resin, expanded perlite and a proper number of auxiliaries are uniformly mixed, and mold filling and hot press molding at different compression ratios are carried out. The phenolic resin adopts boron modified thermoplastic solid phenolic resin, and the consumption of the phenolic resin is 20 to 70 weight percent; the expanded perlite adopts bulk materials with the stacking density being 80 to 150kg/m<3>, and the consumption of the expanded perlite is 30 to 80 weight percent; the compression ratio is 1.25 to 2.5; and the hot press molding temperature is 200 to 240 DEG C, and the pressure maintaining time is 1.5 to 2.5 hours. The apparent density of samples is 280 to 350kg/m<3>, the heat conductivity coefficient is 0.037 to 0.068 W/(m.K), the compressive strength is 1.1 to 1.8 MPa, the rupture strength is 0.8 to 1.5MPa, and the combustion performance is in B1 level. The composite heat insulation material has the advantages of low heat conductivity coefficient of organic heat insulation materials, and high intensity and flame retardance of inorganic heat insulation materials.

Description

Technical field [0001] The present invention involves the heat insulation material and its preparation areas. It is specifically a composite thermal insulation material and preparation method with phenolic resin and perlite as the main raw materials. Background technique [0002] The existing insulation materials mainly include inorganic insulation materials and organic insulation materials.Inorganic thermal insulation materials mainly include perlite, vermiculite, calcium silicate, foaming cement, mineral cotton, glass wool, etc., such as the patented application of CN102336561A. Compared with organic insulation materials, the thermal conductivity of inorganic insulation materials is too large, The heat thermal thermal effect is slightly worse, but the fire -resistance and flame retardant, the deformation coefficient, anti -aging, stable performance, and long service life; [0003] Organic thermal insulation materials mainly include bubblerpenzylene, extruded polystyrary board, ...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08K7/26B29C51/18B29C51/46
Inventor 刘鹏陈亚丽井强山陈延东
Owner XINYANG NORMAL UNIVERSITY
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