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Thermal insulation material and preparation method thereof

A technology of thermal insulation materials and blocks, which is applied in building materials, ceramic products, and other household appliances, etc., can solve the problems of poor flame retardancy, low mechanical strength, and inability to fully exert the function of graphene, so as to enhance strength and promote The effect of cell nucleation

Inactive Publication Date: 2018-02-23
中晶蓝实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned materials completely mix organic materials and inorganic materials together, and cannot fully exert the function of graphene, so that the material has poor flame retardancy and low mechanical strength.

Method used

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  • Thermal insulation material and preparation method thereof

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preparation example Construction

[0052] The preparation method of the thermal insulation material of the present invention comprises the step of forming the skeleton of the cement-based block and the step of filling and molding.

[0053] The steps for forming the cement-based block skeleton of the present invention are as follows: uniformly mix cement, fly ash, cement foaming agent, foam stabilizer, early strength agent, water reducing agent and water to obtain slurry, and pour the slurry into Forming in the mold, static foaming, demoulding and curing, thereby forming a cement-based block skeleton with multiple cavities. The types and amounts of the above-mentioned raw materials are as described above, and will not be repeated here. The method of mixing is not particularly limited. For example, these raw materials are mixed in a high-speed mixer to form a slurry. The mold depends on actual needs, but it needs to be able to form multiple cavities. The time for static foaming can be controlled at 10 to 30 ho...

Embodiment 1

[0060] (1) Stir and mix 60 parts by weight of cement and 30 parts by weight of fly ash with a high-speed mixer, add 3 parts by weight of cement foaming agent, 1.6 parts by weight of foam stabilizer, 0.8 parts by weight of early strength agent, and 0.6 parts by weight of water reducing agent The mixed solution formed with 50 parts by weight of water was stirred at a high speed to obtain a slurry, which was poured into block forming molds of various shapes and left to foam for 12 hours, demoulded, and cured for 10 days to obtain a cement-based block skeleton with a cavity. During the curing period, the surface of the product must be kept moist to ensure that the product reaches its final strength.

[0061] (2) Melting and blending 10 parts by weight of polystyrene resin and 5 parts by weight of graphene through a twin-screw extruder at 135°C, adding an alkane foaming agent, extruding under high pressure and injecting it into the cavity of the cement-based block skeleton, Compres...

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Abstract

The invention discloses a thermal insulation material and a preparation method thereof. The thermal insulation material comprises a cement-based block skeleton and graphene modified polystyrene, wherein the cement-based block skeleton comprises multiple cavities; the multiple cavities are filled with graphene modified polystyrene; and graphene modified polystyrene is formed by performing melt extrusion on graphene and polystyrene resin according to a weight ratio of 1:(1-5) in the multiple cavities in the presence of an alkane foaming agent. According to the thermal insulation material disclosed by the invention, the strength and thermal insulation property are further improved.

Description

technical field [0001] The invention relates to a thermal insulation material and a preparation method thereof, in particular to a filling self-insulation block and a preparation method thereof. Background technique [0002] Faced with the increasing shortage of energy, building energy conservation has gradually attracted the attention and attention of the society, and the integration of structural energy conservation has become an important direction for the development and application of building materials. The existing thermal insulation system has various problems such as cracks, falling off, complicated construction technology, and difficulty in bonding to the outer wall. Self-insulating block is a new type of wall material that integrates load-bearing and thermal insulation. It has the characteristics of both structural materials and thermal insulation materials. It has the advantages of low thermal conductivity, thermal insulation, light weight, high strength, and fir...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B38/10C04B28/30C04B28/32C04B28/04C04B28/06C04B28/34C04B26/04E04C1/40C04B111/28
CPCC04B38/10C04B26/045C04B28/04C04B28/06C04B28/30C04B28/32C04B28/34C04B38/02C04B2111/285C04B2201/20C04B2201/32C04B2201/50E04C1/40C04B18/08C04B22/002C04B22/068C04B24/124C04B24/122C04B24/18C04B14/024C04B24/00
Inventor 童裳慧
Owner 中晶蓝实业集团有限公司
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