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A kind of liquid bone glue adhesive modification method

An adhesive and bone glue technology, applied in the directions of adhesives, adhesive types, protein adhesives, etc., can solve the problems of reduced market share of bone glue adhesives, poor stability, difficult storage, unstable bonding strength, etc., and achieves low freezing point and viscosity. The effect of lifting and water resistance improvement

Active Publication Date: 2016-11-09
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Bone glue is a protein derivative formed after simple hydrolysis of collagen. It is a multiphase dispersion system composed of similar molecular mixtures with very different relative molecular masses. Bond strength, bone glue adhesive has good application properties, but due to some of its own shortcomings, it is easy to gel at room temperature, poor water resistance, not corrosion resistant, poor stability and difficult to store, unstable bond strength, etc., so that the bone glue adhesive Use has been limited, especially with the advent of synthetic adhesives, bone glue adhesives are rapidly losing market share

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) Hydrolysis reaction of bone glue:

[0015] In a water bath at a constant temperature of 50°C, mix bone glue particles and water at a mass ratio of 1.0:1.5, then add NaOH, urea, and sodium lauryl sulfate in sequence, and stir at a medium speed for 120 minutes to complete the hydrolysis of bone glue particles to obtain hydrolyzed bone glue Particle dispersion system; wherein, the added NaOH accounts for 2% of the dry glue mass of bone glue particles; the added urea accounts for 1.7% of the dry glue quality of bone glue particles; the added sodium lauryl sulfate accounts for 2% of the dry glue quality of bone glue particles 2%;

[0016] 2) Coordination reaction of small bone glue molecules:

[0017] Use acid oxalic acid to adjust its pH value to 6, then add aluminum sulfate with 1% of the mass of bone glue particles in a water bath at a constant temperature of 40°C, and stir at a medium speed for 90 minutes to obtain a yellow-brown viscous liquid, which is the modified...

Embodiment 2

[0020] 1) Hydrolysis reaction of bone glue:

[0021] In a water bath at a constant temperature of 90°C, mix bone glue particles and water at a mass ratio of 1.0:1.0, then add KOH, urea, and sodium lauryl sulfate in sequence, and stir at a medium speed for 20 minutes to complete the hydrolysis of bone glue particles to obtain hydrolyzed bone glue Particle dispersion system; wherein, the added KOH accounts for 8% of the dry glue mass of bone glue particles; the added urea accounts for 0.4% of the dry glue quality of bone glue particles; the added sodium lauryl sulfate accounts for 8% of the dry glue quality of bone glue particles 3%;

[0022] 2) Coordination reaction of small bone glue molecules:

[0023] Use acid oxalic acid to adjust its pH value to 9, then add aluminum sulfate with a mass of 6% bone glue particles in a water bath at a constant temperature of 90°C, and stir at a medium speed for 25 minutes to obtain a yellow-brown viscous liquid, which is a modified liquid bo...

Embodiment 3

[0025] 1) Hydrolysis reaction of bone glue:

[0026] In a water bath at a constant temperature of 40°C, mix bone glue particles and water at a mass ratio of 1.0:2.5, then add KOH, urea, and sodium lauryl sulfate in sequence, and stir at a medium speed for 150 minutes to complete the hydrolysis of bone glue particles to obtain hydrolyzed bone glue Particle dispersion system; wherein, the added KOH accounts for 1% of the dry glue quality of the bone glue particles; the added urea accounts for 3% of the dry glue quality of the bone glue particles; the added sodium lauryl sulfate accounts for 1% of the dry glue quality of the bone glue particles 0.4%;

[0027] 2) Coordination reaction of small bone glue molecules:

[0028] Use acid oxalic acid to adjust its pH value to 3, then add aluminum sulfate with 8% bone glue particle mass in a water bath at a constant temperature of 70°C, and stir at a medium speed for 60 minutes to obtain a yellow-brown viscous liquid, which is the modifi...

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Abstract

The invention provides a liquid bone glue adhesive modification method. Bone glue granules and water are mixed in the mass ratio of 1.0:(1.0-2.5) at the temperature of 40-90 DEG C, then alkali, urea and sodium dodecyl sulfate are added, the mixture is stirred, so that the bone glue granules can be hydrolyzed, and a hydrolyzed bone glue granule dispersion system is obtained; a pH value of the hydrolyzed bone glue granule dispersion system is adjusted to be 3-9, then aluminum sulfate accounting for 1%-8% of the mass of the bone glue granules is added at the temperature of 40-90 DEG C, the mixture is stirred, accordingly, aluminum ions are completely coordinated into the hydrolyzed bone glue granules, and a modified liquid bone glue adhesive is obtained. The modification method has simple process, the obtained modified liquid bone glue adhesive has low solidifying point, high viscosity, good stability and certain water resistance and can be widely applied to the wood processing industry, the printing industry, the wooden ware manufacture industry, the shoe manufacture industry, the package industry, the building and ore floatation industry and the like.

Description

technical field [0001] The invention relates to an adhesive modification method, in particular to a liquid bone glue adhesive modification method. Background technique [0002] Bone glue is a protein derivative formed after simple hydrolysis of collagen. It is a multiphase dispersion system composed of similar molecular mixtures with very different relative molecular masses. Bond strength, bone glue adhesive has good application properties, but due to some of its own shortcomings, it is easy to gel at room temperature, poor water resistance, not corrosion resistant, poor stability and difficult to store, unstable bond strength, etc., so that the bone glue adhesive Use has been limited, especially with the advent of synthetic adhesives, which rapidly diminished the market share of bone cement adhesives. Now that the concept of green environmental protection is deepened, since synthetic adhesives have great harm to the environment and human body, it is of great practical sign...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J11/04C09J11/06
Inventor 苏秀霞卜海艳张海宁赵擎霄吕檬夷
Owner SHAANXI UNIV OF SCI & TECH