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Composite material for construction and its preparation process

A composite material and preparation technology, which is applied in the field of materials, can solve the problems of excessive bulk density, insufficient mechanical strength, and low thermal conductivity of thermal insulation materials, and achieve excellent thermal insulation effects, good durability, and simple preparation.

Active Publication Date: 2021-05-21
山东创伟外墙保温材料集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of existing thermal insulation materials such as excessive bulk density, poor thermal insulation effect, insufficient mechanical strength and easy cracking, the present invention provides a thermal insulation material with light weight, low thermal conductivity, fire resistance, good mechanical properties, moisture resistance, sound insulation, mildew resistance and good durability. Composite materials for construction and their preparation technology

Method used

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  • Composite material for construction and its preparation process
  • Composite material for construction and its preparation process
  • Composite material for construction and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A composite material for construction, said material is made of the following components in parts by weight: 10 parts of fly ash, 1 part of calcium hydroxide, 5 parts of hemp fiber, 24 parts of fixed phase change material, chopped 5 parts of carbon fiber, 4 parts of modified starch, 13 parts of modified cellulose airgel, 1 part of modified layered dihydroxy compound hydrotalcite, and 21 parts of polyvinyl alcohol.

[0039] Further, the shape-setting phase-change material is a phase-change material fatty acid ternary eutectic, that is, LA (lauric acid)-PA (palmitic acid)-SA (fatty acid) is loaded in a mass ratio of 6:2:2 Expanded perlite and modified diatomaceous earth are on the base material with a mass ratio of 1:1; the mass content of LA (lauric acid)-PA (palmitic acid)-SA (fatty acid) in the shape-setting phase change material is 25 %.

[0040] Further, the length of the chopped carbon fiber is 0.5-1.5mm.

[0041] Further, the modified cellulose airgel is prepared...

Embodiment 2

[0054] A composite material for construction, said material is made of the following components in parts by weight: 12 parts of fly ash, 2 parts of calcium hydroxide, 8 parts of hemp fiber, 28 parts of fixed phase change material, chopped 7 parts of carbon fiber, 5 parts of modified starch, 15 parts of modified cellulose airgel, 2 parts of modified layered dihydroxy composite hydrotalcite, and 24 parts of polyvinyl alcohol.

[0055] Further, the shape-setting phase-change material is a phase-change material fatty acid ternary eutectic, that is, LA (lauric acid)-PA (palmitic acid)-SA (fatty acid) is loaded in a mass ratio of 6:2:2 Expanded perlite and modified diatomaceous earth are on the base material with a mass ratio of 1.2:1; the mass content of LA (lauric acid)-PA (palmitic acid)-SA (fatty acid) in the shape-setting phase change material is 40 %.

[0056] Further, the length of the chopped carbon fiber is 0.5-1.5 mm.

[0057] Further, the modified cellulose airgel is pr...

Embodiment 3

[0070] A composite material for construction, said material is made of the following components in parts by weight: 13 parts of fly ash, 3 parts of calcium hydroxide, 12 parts of hemp fiber, 33 parts of fixed phase change material, chopped 10 parts of carbon fiber, 7 parts of modified starch, 17 parts of modified cellulose airgel, 3 parts of modified layered dihydroxy composite hydrotalcite, and 33 parts of polyvinyl alcohol.

[0071] Further, the shape-setting phase-change material is a phase-change material fatty acid ternary eutectic, that is, LA (lauric acid)-PA (palmitic acid)-SA (fatty acid) is loaded in a mass ratio of 6:2:2 Expanded perlite and modified diatomaceous earth are on the base material with a mass ratio of 1.3:1; the mass content of LA (lauric acid)-PA (palmitic acid)-SA (fatty acid) in the shape-setting phase change material is less than or equal to 55%.

[0072] Further, the length of the chopped carbon fiber is 0.5-1.5mm.

[0073] Further, the modified ...

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Abstract

The invention discloses a composite material for construction, which is made of the following components in parts by weight: 10-15 parts of fly ash, 1-4 parts of calcium hydroxide, 5-16 parts of hemp fiber, and the fixed phase 24-37 parts of variable material, 5-12 parts of chopped carbon fiber, 4-8 parts of modified starch, 13-19 parts of modified cellulose airgel, 1-3 parts of modified layered dihydroxy composite hydrotalcite, poly Vinyl alcohol 21‑38 parts. The composite material has excellent thermal insulation, fire prevention, sound insulation, moisture-proof, mildew-proof, and earthquake-resistant functions, and is environmentally friendly, light in weight, excellent in mechanical properties, and good in durability. , Toxic and harmful, easy to mold problems.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a composite material for construction and a preparation process thereof. Background technique [0002] With the rapid development of economy and society, people's requirements for living comfort have increased, and the requirements for environmental protection, heat preservation, and moisture resistance of building materials have also become higher and higher. Existing thermal insulation materials have technical defects such as poor ratio of thermal insulation particles and adhesives, brittleness, high water absorption, excessive product bulk density, and easy cracking. These technical defects are closely related to the frequent occurrence of thermal insulation material falling accidents. The direct fall or collision of building insulation materials will cause great harm to pedestrians, vehicles, etc., and seriously threaten the lives and property safety of the people. In addi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/04
CPCC04B26/04C04B2111/00017C04B2201/20C04B2201/32C04B2201/50C04B18/08C04B22/064C04B18/248C04B24/085C04B14/185C04B14/08C04B14/386C04B24/383C04B14/36
Inventor 兰军亚
Owner 山东创伟外墙保温材料集团有限公司
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