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Lightweight self-thermal-insulation building blocks

A self-insulating block and light-weight technology, which is applied in the field of materials, can solve the problems that the strength and thermal conductivity of masonry materials cannot be guaranteed at the same time, reduce the self-weight of self-insulating blocks, etc., and achieve obvious land saving effects, reduce self-weight, and save time Effect

Inactive Publication Date: 2017-03-22
济南思拓新源医药科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to meet the energy-saving and thermal insulation standard requirements of 50% of national public buildings and 65% of residential buildings, make full use of existing resources, save energy and reduce consumption, reduce the self-weight of self-insulating blocks, and at the same time solve the huge contradiction that the strength and thermal conductivity of masonry materials cannot be guaranteed at the same time , the embodiment of the present invention provides a lightweight self-insulating block

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The preparation method of the modified wheat straw is as follows: dry the wheat straw, pulverize it with a pulverizer, take the wheat straw powder passed through a 120 mesh sieve, add a sodium hydroxide solution 15-20 times the mass of the wheat straw powder, Stand and soak for 18-20 hours, filter with suction, discard the filtrate, wash the remaining solid with water until it is neutral, and dry it at 50-60°C. Wheat straw powder, add N,N-dimethylformamide DMF 40-45 times the mass of the pretreated wheat straw powder, stir for 30-40min, continue stirring and add maleic anhydride MA, the maleic anhydride MA: The mass ratio of pretreated wheat straw powder is 0.75-0.8:1, and then the temperature is raised to 100-110°C for reaction. The reaction process is kept stirring. After 2-6 hours of reaction, the product is cooled to room temperature, filtered to remove the filtrate, and the filtered After washing the remaining solids for 3-4 times, put them into an oven for drying ...

Embodiment 1

[0040] Example 1 Lightweight self-insulating block of the present invention

[0041] A light-weight self-insulating building block, comprising the following raw materials: 50 parts by mass of Yellow River cement, 42 parts by mass of quartz sand silt, 3.5 parts by mass of nano-polytetrafluoroethylene (Shanghai Guangbin Trading Co., Ltd.), 1.5 parts by mass of zinc oxide, Hafnium dioxide HfO 2 0.5 parts by mass (CAS No.12055-23-1, Shanghai Huzhen Industrial Co., Ltd.), 0.8 parts by mass of titanium carbide TIC (CAS No.12070-08-5, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.), nitriding 0.3 parts by mass of tantalum TaN (CAS No.12033-62-4, (Codow Kedao) Guangzhou Hewei Chemical Co., Ltd.), 2.5 parts by mass of glass beads (Yongqing County Haiyu Glass Beads Co., Ltd.), mixed solution 40 mass parts, account for additive one of mixed solution one quality 2.3wt% and account for mixed solution one quality additive two of 0.026wt%; In mixed solution one, include acrylic ...

Embodiment 2

[0053] A lightweight self-insulating building block, which includes the following raw materials: 52 parts by mass of Yellow River cement, 44 parts by mass of quartz sand silt, 2.5 parts by mass of nano-polytetrafluoroethylene, 1.2 parts by mass of zinc oxide, Hafnium HfO 20.3 parts by mass, 0.9 parts by mass of titanium carbide TIC, 0.5 parts by mass of tantalum nitride TaN, 3.0 parts by mass of glass microspheres, 35 parts by mass of mixed solution, additives accounting for 2.5 wt% of mixed solution-mass and accounted for mixed solution Additive 2 with a mass of 0.022 wt%; said mixed solution 1 includes acrylic acid, polyvinyl alcohol PVA, modified wheat straw and water.

[0054] Mixed solution one, wherein acrylic acid is partially neutralized acrylic acid, and the neutralization degree of acrylic acid is 60%.

[0055] In mixed solution 1, based on unneutralized acrylic acid, the mass ratio of acrylic acid: polyvinyl alcohol PVA: modified wheat straw: water is 30:4:7:70.

...

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Abstract

The invention discloses lightweight self-thermal-insulation building blocks. The lightweight self-thermal-insulation building blocks comprise, by mass, 50-55 parts of Yellow River clay, 41-44 parts of quartz sand silt, 2.5-4.3 parts of nano teflon, 1.2-1.7 parts of zinc oxide, 0.3-0.7 part of hafnium dioxide, 0.8-1.0 part of titanium carbide, 0.2-0.5 part of tantalum nitride, 2.4-3.0 parts of glass beads, 35-42 parts of first mixed solution, a first additive accounting for 2-3wt% of the mass of the first mixed solution, and a second additive accounting for 0.022-0.030wt% of the mass of the first mixed solution, wherein the first mixed solution comprises acrylic acid, polyvinyl alcohol, modified wheat straw and water. The lightweight self-thermal-insulation building blocks have the advantages that Yellow River clay and the wheat straw are used as the raw materials, waste is turned into wealth, resources are utilized comprehensively, a wall built by the building blocks does not need extra external wall insulation, the strength of the wall is increased evidently as compared with that of a structure built by traditional hollow bricks, high early strength is achieved, and the delivery cycle of the building blocks is shortened greatly; the produced thermal-insulation building blocks are excellent in thermal performance, high in strength, good in thermal insulation performance, low in cost and low in water absorption rate.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a lightweight self-insulating block. Background technique [0002] The advantage of external wall self-insulation and thermal insulation blocks is that it is accompanied by the theme construction, the overall construction timeliness of the project is high, the masonry is convenient, and the cumbersome process of secondary thermal insulation is eliminated, the construction cost is reduced, and the price is relatively low. New wall materials sintered with river and lake silt and composite blocks produced from fly ash, slag, coal gangue and other materials have been fully utilized in our country. Standard bricks are used for load-bearing walls and perforated bricks are used for frame structure infill walls. The existing problem is that the wall cannot meet the energy-saving and thermal insulation effect of 50% of public buildings and 65% of residential buildings stipulated by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13C04B33/32
CPCC04B33/1305C04B33/131C04B33/132C04B33/1321C04B33/1324C04B33/32C04B2235/3231C04B2235/3284C04B2235/36C04B2235/3843C04B2235/3886C04B2235/483C04B2235/77C04B2235/96C04B2235/9607Y02P40/60
Inventor 李春花
Owner 济南思拓新源医药科技有限公司