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Ceramic fiber strengthened polyurethane foam plastic and preparation method thereof

A technology of ceramic fiber and foam plastics, applied in the field of materials, can solve the problems of expensive polyurethane foam plastics, poor temperature resistance and fire resistance, and shortage of raw materials, and achieve light weight, specific heat resistance to mechanical vibration, and reduced thermal conductivity. Effect

Inactive Publication Date: 2015-10-14
SUZHOU POLYMER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition to the high price and shortage of raw materials, polyurethane foam plastics have the biggest disadvantages of poor heat resistance and fire resistance, and it is unfavorable to use them in environments with temperatures higher than 100 °C.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A ceramic fiber reinforced polyurethane foam, prepared from the following raw materials in parts by weight:

[0021] 80 parts of polyurethane emulsion, 20 parts of ceramic fiber, 5 parts of t-butyl peroxy tert-butyl valerate, 8 parts of tricresyl phosphate, 8 parts of polyamide, 7 parts of sodium borate and 18 parts of sodium silicate.

[0022] A preparation method of ceramic fiber reinforced polyurethane foam, the preparation steps are as follows:

[0023] (1) Accurately weigh each raw material;

[0024] (2) Mix the raw materials evenly and put them into the injection molding machine for molding. The barrel temperature is 270°C, the injection pressure is 105Mpa, the mold temperature is 58°C, the holding time is 70s, and the cooling time is 90s;

[0025] (3) After cooling and molding by the injection molding machine, the ceramic fiber reinforced polyurethane foam is obtained.

[0026] Test the performance of ceramic fiber reinforced polyurethane foam, the results show...

Embodiment 2

[0028] A ceramic fiber reinforced polyurethane foam, prepared from the following raw materials in parts by weight:

[0029] 65 parts of polyurethane emulsion, 10 parts of ceramic fiber, 2 parts of tert-butyl peroxyvalerate, 3 parts of tricresyl phosphate, 3 parts of polyamide, 3 parts of sodium borate and 8 parts of sodium silicate.

[0030] A preparation method of ceramic fiber reinforced polyurethane foam, the preparation steps are as follows:

[0031] (1) Accurately weigh each raw material;

[0032] (2) Mix the raw materials evenly and put them into the injection molding machine for molding. The barrel temperature is 270°C, the injection pressure is 90Mpa, the mold temperature is 58°C, the holding time is 60s, and the cooling time is 90s;

[0033] (3) After cooling and molding by the injection molding machine, the ceramic fiber reinforced polyurethane foam is obtained.

[0034] Test the performance of ceramic fiber reinforced polyurethane foam, the results show: Density: ...

Embodiment 3

[0036] A ceramic fiber reinforced polyurethane foam, prepared from the following raw materials in parts by weight:

[0037] 78 parts of polyurethane emulsion, 18 parts of ceramic fiber, 4 parts of tert-butyl peroxyvalerate, 6 parts of tricresyl phosphate, 7 parts of polyamide, 6 parts of sodium borate and 16 parts of sodium silicate.

[0038] A preparation method of ceramic fiber reinforced polyurethane foam, the preparation steps are as follows:

[0039] (1) Accurately weigh each raw material;

[0040] (2) Mix the raw materials evenly and put them into the injection molding machine for molding. The barrel temperature is 270°C, the injection pressure is 95Mpa, the mold temperature is 58°C, the holding time is 65s, and the cooling time is 90s;

[0041] (3) After cooling and molding by the injection molding machine, the ceramic fiber reinforced polyurethane foam is obtained.

[0042] Test the performance of ceramic fiber reinforced polyurethane foam, the results show: Density:...

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Abstract

The invention discloses a ceramic fiber strengthened polyurethane foam plastic and a preparation method thereof, and belongs to the technical field of materials. The foam plastic is composed of the following raw materials in parts by weight: 65 to 80 parts of polyurethane emulsion, 10 to 20 parts of ceramic fiber, 2 to 5 parts of tert-butyl peroxypivalate, 3 to 8 parts of tritolyl phosphate, 3 to 8 parts of polyamide, 3 to 7 parts of sodium borate, and 8 to 18 parts of sodium silicate. The preparation method comprises the following steps: (1) weighing; (2) putting the raw materials into an injection moulding machine; (3) cooling and moulding. The heat conductivity of the provided ceramic fiber strengthened polyurethane foam plastic is further reduced; the provided foam plastic has a good temperature-resistant and fireproof performance, at the same time the mechanical properties, corrosion resistant property and weatherability of the foam plastic are excellent, and thus the foam plastic is an ideal material.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a ceramic fiber reinforced polyurethane foam and a preparation method thereof. Background technique [0002] Polyurethane foam is made of isocyanate and hydroxyl compound through polymerization and foaming. According to its hardness, it can be divided into two types: soft and hard, of which soft is the main variety. Generally speaking, it has excellent elasticity, softness, elongation and compressive strength; good chemical stability, resistance to many solvents and oils; excellent abrasion resistance, 20 times larger than natural sponge; and excellent processing It is a kind of cushioning material with excellent performance, but the price is relatively high. [0003] In addition to the high price and shortage of raw materials, polyurethane foam plastics have the biggest disadvantage of poor heat resistance and fire resistance, and it is unfavorable to use them in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L77/00C08K13/04C08K7/04C08K5/14C08K5/523C08K3/38C08K3/34
Inventor 翟红波杨振枢韦洪屹
Owner SUZHOU POLYMER NEW MATERIALS TECH
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