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Vermiculite composite material and preparation method thereof, and fireproof and heat-insulating composite board

A composite material, vermiculite technology, used in fire prevention, manufacturing tools, thermal insulation and other directions, can solve the problems of unsatisfactory thermal insulation performance, low strength, low mechanical strength, etc., to achieve excellent mechanical properties, waterproof and long service life, The effect of reducing production costs

Inactive Publication Date: 2017-07-07
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, provide a vermiculite composite material and its preparation method, to solve the technical problems of the existing vermiculite material with low mechanical strength and unsatisfactory thermal insulation performance
[0005] Another object of the present invention is to provide a fire-proof and heat-insulating composite board to solve the technical problems of the existing fire-proof and heat-insulating boards with low mechanical strength and unsatisfactory thermal insulation performance

Method used

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preparation example Construction

[0025] Correspondingly, the embodiment of the present invention also provides a preparation method of the vermiculite composite material of the embodiment of the present invention. The preparation method of described vermiculite composite material comprises the steps:

[0026] S01: Measure the raw materials of each component respectively according to the component ratio contained in the vermiculite composite material of the embodiment of the present invention described above;

[0027] S02: Wetting the measured expanded vermiculite and then adding the potassium hexatitanate whiskers for mixing to obtain a first mixing material;

[0028] S03: adding water to the first mixture for mixing treatment to obtain a second mixture;

[0029] S04: adding a binder to the second mixture for mixing treatment to obtain a third mixture;

[0030] S05: Perform compression molding on the third mixture.

[0031] Specifically, in the above-mentioned step S01, each component raw material is weigh...

Embodiment 1

[0045] This embodiment provides an expanded vermiculite composite material and a preparation method thereof. The expanded vermiculite composite material in this example is composed of expanded vermiculite, potassium hexatitanate whiskers, and a high-temperature water-based binder.

[0046] The preparation method of the expanded vermiculite composite material of the present embodiment is as follows:

[0047] S11: Weigh 4kg of expanded vermiculite (with a particle size of 1-3mm and a loose bulk density of 140kg / m 3 ) into the mixer, add 2.5kg of water to stir, so that the surface of the expanded vermiculite is evenly wetted;

[0048] S12: Weigh 0.8 kg of potassium hexatitanate whiskers, add to the surface-wetted expanded vermiculite in step S11, and mix evenly in a mixer;

[0049] S13: Weigh 2.5 kg of water and add it to the mixture in the above step S12, and continue stirring to further uniformly disperse the material.

[0050] S14: Weigh 0.4 kg of GX-3 high-temperature bind...

Embodiment 2

[0062] This embodiment provides an expanded vermiculite composite material and a preparation method thereof. The expanded vermiculite composite material in this example is composed of expanded vermiculite, potassium hexatitanate whiskers, and a high-temperature water-based binder.

[0063] The preparation method of the expanded vermiculite composite material of the present embodiment is as follows:

[0064] S21: Take by weighing 4kg of expanded vermiculite (the size of 1-3mm and 2-4mm respectively account for 50% of the total weight of expanded vermiculite, and the loose bulk density is 110kg / m 3 ) into the mixer, add 2.5kg of water to stir, so that the surface of the expanded vermiculite is evenly wetted;

[0065] S22: Weigh 0.8 kg of potassium hexatitanate whiskers, add to the surface-wetted expanded vermiculite in step S21, and mix evenly in a mixer;

[0066] S23: Weigh 2.0 kg of water and add it to the mixture in the above step S22, and continue stirring to further unifo...

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Abstract

The invention discloses an expanded vermiculite composite material and a preparation method thereof, and a fireproof and heat-insulating composite board. The expanded vermiculite composite material comprises expanded vermiculite, further comprises potassium hexatitanate whisker and a bonder, and is molded by compressing a mixture of the potassium hexatitanate whisker, the expanded vermiculite and the bonder, wherein the mass ratio of the expanded vermiculite to the potassium hexatitanate whisker is (30-50):(3-15). The expanded vermiculite composite material and the fireproof and heat-insulating composite board are excellent in mechanical property, stability and water resistance, long in service life, and high in fireproof and heat-insulating performance; moreover, any harmful gas is not released under high temperature, thereby achieving safety and environment protection. Hot-press molding is not needed for the preparation method of the expanded vermiculite composite material, thereby effectively simplifying the preparation process, reducing the production cost, and achieving safety and environment protection.

Description

technical field [0001] The invention belongs to the field of fireproof materials and thermal insulation materials, and in particular relates to a vermiculite composite material, a preparation method thereof, and a fireproof and heat-insulation composite board. Background technique [0002] Vermiculite is a natural, inorganic, non-toxic mineral, its origin is very complicated, it is generally considered to be a metamorphic mineral formed by the change of minerals such as phlogopite and biotite. The reason why vermiculite has industrial use value is mainly because when it is heated and calcined, it has the characteristic of rapid expansion perpendicular to the direction of the dissociation layer. Vermiculite is calcined at a temperature of 850°C-1000°C, and its single particle can expand more than 20 times, and the overall expansion of many particles is 5-7 times. The expanded vermiculite, thin laminations form many interval layers, and the layers are filled with air, so it h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/00E04B1/80E04B1/94B28B7/38
CPCC04B26/00B28B7/38C04B2111/00017C04B2111/27C04B2111/28C04B2201/20C04B2201/32C04B2201/50E04B1/80E04B1/942C04B14/383C04B14/204
Inventor 邹继兆余良曾燮榕黎晓华姚跃超于思洋
Owner SHENZHEN UNIV