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A kind of preparation method of wall filling material

A filling material and wall technology, applied in the field of biomass-based building materials preparation, can solve the problems of limited protection objects, human toxicity and environmental pollution, and difficult and durable protection, so as to improve living comfort, simple preparation process and reproducible strong effect

Active Publication Date: 2019-04-16
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these protective technical measures also have fatal weaknesses: (1) Adding more artificial additives, such as mold inhibitors, flame retardants, insecticides and flavors, has potential human toxicity and environmental pollution risks; (2) The protection objects are limited, for example, only porous wood is more suitable for impregnation, spraying can only protect the surface layer but not the inner layer; (3) The protection is difficult to last, for example, the surface of wood is coated with silicate coating, the weather resistance is not good, Cracks, cracks, and even falling off often appear to separate from the base material, which not only deteriorates the long-term performance of wood mildew and flame retardancy, but also affects its appearance

Method used

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  • A kind of preparation method of wall filling material
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Effect test

Embodiment 1

[0029] 1.00 cubic meters of wheat starch, 0.50 cubic meters of rice bran powder, 0.50 cubic meters of sawdust powder, 1.00 cubic meters of straw ash powder, 1.50 cubic meters of red clay powder, and 0.10 cubic meters of slaked lime powder were passed through a 40-mesh sieve at room temperature of 25°C. , and then together with 3.00 cubic meters of water, put it into a kneader, energize and knead and mix evenly, then send the resulting uniform mixture into the mold equipment and extrude it under a pressure of 50kN to obtain a green tire product; then place the green tire product at 650 ℃ under a nitrogen atmosphere for 1.5 hours; finally discharged and cooled to obtain a wall filling board 1 with a length of 100 cm x width of 60 cm x thickness of 9 cm.

Embodiment 2

[0031] At room temperature of 25°C, first pass 1.00 cubic meters of wheat starch, 1.00 cubic meters of rice bran powder, 0.75 cubic meters of straw ash powder, 1.00 cubic meters of red clay powder, and 0.20 cubic meters of slaked lime powder through a 40-mesh sieve, and then mix with 2.00 cubic meters of water Together, put it into a kneader, turn on the electricity and knead and mix evenly, then send the obtained uniform mixture into the mold equipment and extrude it under a pressure of 50kN to obtain a green tire product; hours; finally discharging and cooling to obtain a wall filling board 2 with a length of 100 cm × width of 60 cm × thickness of 9 cm.

Embodiment 3

[0033] At room temperature of 25°C, 1.00 cubic meters of wheat starch, 0.75 cubic meters of rice bran powder, 0.25 cubic meters of sawdust powder, 0.50 cubic meters of straw ash powder, 1.50 cubic meters of bentonite powder, and 0.30 cubic meters of slaked lime powder were passed through a 40-mesh sieve. Then put it into the kneader together with 2.50 cubic meters of water, turn on the electricity and knead and mix evenly, then send the obtained uniform mixture into the mold equipment and extrude it under the pressure of 50kN to obtain the green tire product; then place the green tire product at 750°C Calcined under nitrogen atmosphere for 0.5 hours; finally discharged and cooled to obtain a wall filling board 3 with a length of 100 cm x width of 60 cm x thickness of 9 cm.

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Abstract

The invention discloses a preparation method of a wall filling material. The preparation method is characterized in that the material is formed by mixing and performing oxygen insulation sintering on the following raw materials in parts by volume: 100 parts of starch, 50 to 100 parts of rice bran powder, 0 to 50 parts of other pulverized biomass, 50 to 100 parts of plant ash powder, 50 to 150 parts of clay, 10 to 30 parts of hydrated lime in powder, and 200 to 300 parts of water. Oxygen insulation sintering basically comprises the following processes: uniformly mixing all the component raw materials at room temperature, and then feeding the component raw materials into die equipment to perform extrusion forming, so as to obtain a roughcast product; calcining the roughcast product for 0.5 to 1.5 hours in a 650 to 750 DEG C oxygen insulation environment; finally performing discharging and cooling, so as to form the wall filling material. According to the method, no poisonous or harmful artificial assistants are added, and the prepared wall filling material further has intrinsic mildewproof and flame retardant functions, and meets the industrial development requirements of green building materials.

Description

technical field [0001] The invention relates to the technical field of preparation of biomass-based building materials, in particular to a preparation method of a wall filling material with anti-mildew and flame-retardant functions. Background technique [0002] The wall filling materials used in modern buildings mainly play the role of heat resistance, heat preservation, sound insulation, fire prevention and / or energy saving. At present, there are three main types of wall filling materials widely used in the market: (1) Inorganic compounds, such as glass wool, mineral (rock) wool, nano-silicon, aerated concrete, expanded perlite, clay ceramsite, foamed water Glass and vermiculite, etc.; (2) Organic compounds, such as rigid foam, granules or capsules of polyurethane, polystyrene, melamine, phenolic and other polymers; (3) Biomass and its derivatives, such as straw, Straw, reed, sawdust, chaff, shavings and honeycomb paper, etc. The first two types are mainly used in reinfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B33/132C04B33/32
CPCC04B33/132C04B33/32C04B38/0675C04B2235/3208C04B2235/96Y02P40/60
Inventor 陈潇川陈荣国陈树泉钱庆荣陈庆华肖荔人
Owner FUJIAN NORMAL UNIV
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