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Inorganic adhesive for bamboo-wood structures and preparation method thereof

A structural, inorganic adhesive technology, applied in inorganic adhesives, adhesives, non-polymer adhesive additives, etc., can solve problems such as failure to achieve good bonding

Active Publication Date: 2020-07-17
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 of the prior art cannot achieve good bonding with bamboo and wood materials, the present invention provides an inorganic glue for bamboo and wood structures and a preparation method thereof

Method used

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  • Inorganic adhesive for bamboo-wood structures and preparation method thereof
  • Inorganic adhesive for bamboo-wood structures and preparation method thereof
  • Inorganic adhesive for bamboo-wood structures and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 A kind of inorganic glue for bamboo and wood structure

[0039] Its components include: magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid, water.

[0040] The mass ratio of the above components is: magnesium oxide: magnesium sulfate heptahydrate: silica fume: silica sol: lithium silicate: sodium silicate: citric acid: water = 1: 0.42, 0.05, 0.01, 0.005, 0.01, 0.01, 0.39 .

[0041] Magnesium Oxide: Light-burned magnesia, activity 75.

[0042] Magnesium sulfate heptahydrate: industrial grade, effective content 95%.

[0043] Silica fume: Amorphous SiO 2 Content 95%, particle size 100-300nm.

[0044] Silica sol: particle size 10-20nm, liquid, concentration 30%.

[0045] Lithium silicate: solid, modulus 2.0, dissolved in water in advance.

[0046] Sodium silicate: liquid, modulus 2.3.

[0047] Citric acid: 98% purity, powder.

[0048] Water: clean tap water.

[0049] The preparation ...

Embodiment 2

[0062] Embodiment 2 A kind of inorganic glue for bamboo and wood structure

[0063] Its components: magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid, water.

[0064] The mass ratio of the above components is: magnesium oxide: magnesium sulfate heptahydrate: silica fume: silica sol: lithium silicate: sodium silicate: citric acid: water = 1: 0.39, 0.03, 0.005, 0.005, 0.01, 0.005, 0.56 .

[0065] Magnesium Oxide: Light-burned magnesia, active 56.

[0066] Magnesium sulfate heptahydrate: industrial grade, effective content 90%.

[0067] Silica fume: amorphous SiO2 content 92%, particle size 100-300nm.

[0068] Silica sol: particle size 15-25nm, liquid, concentration 30%.

[0069] Lithium silicate: solid, modulus 1.5, dissolved in water in advance.

[0070] Sodium silicate: solid, modulus 1.5, dissolved in water in advance.

[0071] Citric acid: 96% purity, powder.

[0072] Water: clean tap water.

[00...

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Abstract

The invention relates to the technical field of adhesive for bamboo and wood materials, in particular to inorganic adhesive for bamboo-wood structures and a preparation method of the inorganic adhesive. The inorganic adhesive comprises the following components: magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid and water. The bonding performance between the inorganic adhesive and the bamboo-wood material is good, and the fire resistance, strength and durability of an obtained bonded bamboo-wood composite material are improved.

Description

technical field [0001] The invention relates to the technical field of glue for bamboo and wood materials, specifically, an 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 and wood structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/00C09J11/04C09J11/06
CPCC09J1/00C09J11/04C09J11/06
Inventor 张鑫贾留东李秀荣刘巧玲
Owner SHANDONG JIANZHU UNIV
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