A kind of negative ion anti-pressure building material and preparation method thereof

A technology for building materials and negative ions, applied in the field of negative ion compression-resistant building materials and their preparation, can solve the problems of ineffective release of negative ions, poor sound insulation effect and high thermal insulation coefficient, and achieve the elimination of indoor odor and various harmful gases and sound insulation effect. Good, low thermal insulation effect

Inactive Publication Date: 2018-08-24
福建泉大建设有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing materials cannot effectively release negative ions. In addition, the existing materials still have the problems of low strength, high thermal insulation coefficient, poor sound insulation effect, and high product cost.

Method used

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  • A kind of negative ion anti-pressure building material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0017] In the embodiment of the present invention, an anion-resistant building material is composed of the following raw materials in parts by weight: 33 parts of lignin, 18 parts of hydroxyapatite, 15 parts of chitosan, 9 parts of hexamethylenetetramine, 1 part concentrated sulfuric acid.

[0018] Mix concentrated sulfuric acid with 9 times its mass of deionized water to prepare a sulfuric acid solution; add hexamethylenetetramine to 10 times its mass of deionized water to prepare a hexamethylenetetramine solution. The lignin was pulverized, passed through a 200-mesh sieve, placed in a sulfuric acid solution, heated to 68° C., and stirred at this temperature for 35 minutes to obtain a mixture A. Mix and grind hydroxyapatite and chitosan, pass through a 200-mesh sieve, add hexamethylenetetramine solution and mix, raise the temperature to 80° C., and stir at this temperature for 30 minutes to prepare mixture B. Mix mixture A and mixture B, heat and stir at 92°C for 55 minutes,...

Embodiment 2

[0020] In the embodiment of the present invention, a negative ion anti-pressure building material is composed of the following raw materials in parts by weight: 41 parts of lignin, 26 parts of hydroxyapatite, 23 parts of chitosan, 17 parts of hexamethylenetetramine, 5 parts of concentrated sulfuric acid.

[0021] Mix concentrated sulfuric acid with 9 times its mass of deionized water to prepare a sulfuric acid solution; add hexamethylenetetramine to 10 times its mass of deionized water to prepare a hexamethylenetetramine solution. The lignin was pulverized, passed through a 200-mesh sieve, placed in a sulfuric acid solution, heated to 68° C., and stirred at this temperature for 40 minutes to obtain a mixture A. Mix and grind hydroxyapatite and chitosan, pass through a 200-mesh sieve, add hexamethylenetetramine solution and mix, raise the temperature to 80° C., and stir at this temperature for 30 minutes to prepare mixture B. Mix mixture A and mixture B, heat and stir at 92°C ...

Embodiment 3

[0023] In the embodiment of the present invention, an anion-resistant building material is composed of the following raw materials in parts by weight: 35 parts of lignin, 20 parts of hydroxyapatite, 17 parts of chitosan, 11 parts of hexamethylenetetramine, 2 parts of concentrated sulfuric acid.

[0024] Mix concentrated sulfuric acid with 9 times its mass of deionized water to prepare a sulfuric acid solution; add hexamethylenetetramine to 10 times its mass of deionized water to prepare a hexamethylenetetramine solution. The lignin was pulverized, passed through a 200-mesh sieve, placed in a sulfuric acid solution, heated to 68°C, and stirred at this temperature for 38 minutes to obtain a mixture A. Mix and grind hydroxyapatite and chitosan, pass through a 200-mesh sieve, add hexamethylenetetramine solution and mix, raise the temperature to 80° C., and stir at this temperature for 30 minutes to prepare mixture B. Mix mixture A and mixture B, heat and stir at 92°C for 58 minut...

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Abstract

The invention discloses a negative-ion anti-pressure building material and a preparation method thereof. The building material is composed of the following raw materials in parts by weight: 33 to 41 parts of lignin, 18 to 26 parts of hydroxyapatite, 15 to 23 parts of chitosan, 9 to 17 parts of hexamethylenetetramine and 1 to 5 parts of concentrated sulfuric acid. According to the invention, by utilizing sulfuric acid to treat the lignin, and by utilizing hexamethylenetetramine to treat the hydroxyapatite and the chitosan, two obtained mixtures are mixed and undergo ultrasonic treatment and pressurized molding to prepare the building material. Under the synergistic effect of the raw materials, anti-pressure and anti-fold performances are improved; negative ions can be effectively released; indoor air can be purified; indoor odor and a variety of harmful gases can be eliminated; light self-weight, low heat-preserving coefficient and good sound insulation effect are obtained; the adopted raw materials are simple and extensively available; and the preparation process has the advantages of simplicity, easy operation, low cost, convenient processing and use, and applicability to industrial production.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an anion-resistant pressure-resistant building material and a preparation method thereof. Background technique [0002] Insulation materials are generally materials with a thermal coefficient less than or equal to 0.2. The development of thermal insulation materials is rapid, and the use of good thermal insulation technology and materials in industry and construction can often achieve twice the result with half the effort. Every ton of mineral wool insulation products used in buildings can save one ton of oil a year. The thermal insulation material can collect excess heat and release it in a timely and stable manner, with small gradient changes, which can effectively reduce the loss. The room temperature can be trended and the winter heat preservation can play a balancing role. In the decoration of new buildings and the renovation of old buildings, it can overcome th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/28C04B111/40C04B111/52
CPCC04B26/28C04B2111/00017C04B2111/40C04B2111/52C04B24/24C04B14/366C04B24/121C04B22/141
Inventor 不公告发明人
Owner 福建泉大建设有限公司
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