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A kind of inorganic adhesive for anti-cracking bamboo and wood structure and preparation method thereof

A technology for structural and inorganic adhesives, applied in the direction of inorganic adhesives, adhesives, polymer adhesive additives, etc., can solve problems such as inability to achieve good bonding, achieve the effect of solving bonding problems and improving fire resistance

Active Publication Date: 2021-09-24
SHANDONG JIANZHU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the inorganic glue in the prior art cannot achieve good bonding with bamboo and wood materials, the present invention provides an inorganic glue for crack-resistant bamboo and wood structures and a preparation method thereof

Method used

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  • A kind of inorganic adhesive for anti-cracking bamboo and wood structure and preparation method thereof
  • A kind of inorganic adhesive for anti-cracking bamboo and wood structure and preparation method thereof
  • A kind of inorganic adhesive for anti-cracking bamboo and wood structure and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]Embodiment 1 A kind of inorganic glue for anti-cracking type bamboo and wood structure

[0043] Its components include: magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid, microcrystalline cellulose, nanocellulose whiskers, water.

[0044] The mass ratio of the above components is: magnesium oxide: magnesium sulfate heptahydrate: silica fume: silica sol: lithium silicate: sodium silicate: citric acid: microcrystalline cellulose: nanocellulose whiskers: water = 1: 0.42, 0.05, 0.01, 0.005, 0.01, 0.01, 0.01, 0.002, 0.39.

[0045] Magnesium Oxide: Light-burned magnesia, activity 75.

[0046] Magnesium sulfate heptahydrate: industrial grade, effective content 95%.

[0047] Silica fume: Amorphous SiO 2 Content 95%, particle size 100-300nm.

[0048] Silica sol: particle size 10-20nm, liquid, concentration 30%.

[0049] Lithium silicate: solid, modulus 2.0, dissolved in water in advance.

[0050] Sodium ...

Embodiment 2

[0068] Embodiment 2 A kind of inorganic glue for anti-cracking type bamboo and wood structure

[0069] Its components: magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid, microcrystalline cellulose, nanocellulose whiskers, water.

[0070] The mass ratio of the above components is: magnesium oxide: magnesium sulfate heptahydrate: silica fume: silica sol: lithium silicate: sodium silicate: citric acid: microcrystalline cellulose: nanocellulose whiskers: water=1:0.38: 0.07:0.005:0.005:0.005:0.015:0.005:0.001:0.55.

[0071] Magnesium Oxide: Light-burned magnesia, active 56.

[0072] Magnesium sulfate heptahydrate: industrial grade, effective content 90%.

[0073] Silica fume: amorphous SiO2 content 92%, particle size 100-300nm.

[0074] Silica sol: particle size 15-25nm, liquid, concentration 30%.

[0075] Lithium silicate: solid, modulus 1.5, dissolved in water in advance.

[0076] Sodium silicate: solid, ...

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Abstract

The invention relates to the technical field of glue for bamboo and wood materials, in particular to a crack-resistant inorganic glue for bamboo and wood structures and a preparation method thereof. Its components include: magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid, microcrystalline cellulose, nanocellulose whiskers, and water. The inorganic glue has good bonding performance with the bamboo-wood material, and improves the fire resistance, strength and durability of the bonded bamboo-wood composite material.

Description

technical field [0001] The invention relates to the technical field of glue for bamboo and wood materials, in particular to a crack-resistant inorganic glue for bamboo and wood structures and a preparation method thereof. Background technique [0002] Bamboo and wood are unique among all building materials that can grow naturally, conform to sustainable development and are environmentally friendly green materials. Bamboo and wood buildings have very good earthquake resistance due to their light weight and high strength. Large-scale public buildings with a span of tens of meters can be built in the city. They are usually used as exhibition places and as refuges in disasters such as earthquakes. [0003] Glued bamboo (including glulam and recombined bamboo) and glued wood are engineered bamboo and wood products, which can increase the section and improve the bearing capacity. The development and application of environmentally friendly inorganic adhesives suitable for bamboo ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J1/02C09J11/04C09J11/06C09J11/08
CPCC09J1/02C09J11/04C09J11/06C09J11/08
Inventor 刘巧玲李秀荣张鑫贾留东
Owner SHANDONG JIANZHU UNIV