CN109439203A - A kind of adhesive and preparation method thereof - Google Patents
A kind of adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN109439203A CN109439203A CN201811195936.9A CN201811195936A CN109439203A CN 109439203 A CN109439203 A CN 109439203A CN 201811195936 A CN201811195936 A CN 201811195936A CN 109439203 A CN109439203 A CN 109439203A
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- adhesive
- alumina
- alpha
- sodium metasilicate
- parts
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J1/00—Adhesives based on inorganic constituents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of adhesive and preparation method thereof, the adhesive is according to parts by weight, comprising: 60~70 parts of alpha-alumina；10~20 parts of sodium metasilicate；10~20 parts of water；1~5 part of modifying agent；1~5 part of curing agent；The modifying agent includes xylitol and sodium tripolyphosphate.Specific modifying agent xylitol and sodium tripolyphosphate are used in adhesive provided by the invention, effectively increase the adhesive property and mechanical strength of adhesive, meanwhile the xylitol and sodium tripolyphosphate cooperate other raw materials to act synergistically, the adhesive made resistance to fire intensity with higher.It includes prodan and aluminium dihydrogen phosphate that the present invention, which further defines curing agent, effectively shortens the curing time of adhesive, realizes the room temperature short time solidification of adhesive.
Description
Technical field
The present invention relates to building material technical fields more particularly to a kind of adhesive and preparation method thereof.
Background technique
The mixed glue that waterglass adhesive is made of aggregate, water glass solution and additive, due to operability
By force, the advantages such as raw material is cheap, and bonding force is strong, are widely used in metallurgy industry.But traditional waterglass adhesive ingredient is cumbersome, Gu
The change time is slow, maintainer duration, and curing temperature is high, shrinks greatly, and mechanical strength is poor, so that adaptation occasion is few, influences effect of constructing
Rate, and it is readily incorporated impurity, adhesive property and refractoriness are up for improving.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that provide a kind of adhesive and preparation method thereof, the present invention
The adhesive Easy dosing of offer, adhesive property and mechanical strength are more excellent, and refractoriness is higher.
The present invention provides a kind of adhesive, according to parts by weight, comprising:
The modifying agent includes xylitol and sodium tripolyphosphate.
Preferably, the alpha-alumina includes alpha-alumina that partial size is 325~400 mesh and partial size is 600~800
Purpose alpha-alumina.
Preferably, the partial size be 325~400 mesh alpha-alumina and partial size be 600~800 mesh alpha-alumina
Mass ratio be 5~5.5:4.5.
Preferably, the sodium metasilicate is sodium metasilicate powder, and the sodium metasilicate powder includes two mould sodium metasilicate powder and three moulds
Sodium metasilicate powder.
Preferably, the mass ratio of the two moulds sodium metasilicate powder and three mould sodium metasilicate powder is 1:1.5~2.
Preferably, the mass ratio of the xylitol and sodium tripolyphosphate is 1.5~2:1.
Preferably, the curing agent includes prodan and aluminium dihydrogen phosphate.
Preferably, the mass ratio of the prodan and aluminium dihydrogen phosphate is 0.8~1:3.
The present invention also provides a kind of preparation methods of adhesive described above, comprising the following steps:
Alpha-alumina, sodium metasilicate, modifying agent, curing agent and water are mixed, adhesive is obtained.
It is preferably, described to mix alpha-alumina, sodium metasilicate, modifying agent, curing agent and water specifically:
First alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed, then the dry powder after mixing is stirred with water and is mixed
It closes.
The present invention provides a kind of adhesive, according to parts by weight, comprising: 60~70 parts of alpha-alumina；Sodium metasilicate 10
~20 parts；10~20 parts of water；1~5 part of modifying agent；1~5 part of curing agent；The modifying agent includes xylitol and sodium tripolyphosphate.
Specific modifying agent xylitol and sodium tripolyphosphate are used in adhesive provided by the invention, effectively increase the viscous of adhesive
Performance and mechanical strength are tied, meanwhile, the xylitol and sodium tripolyphosphate cooperate other raw materials to act synergistically, the gluing made
Agent resistance to fire intensity with higher.It includes prodan and aluminium dihydrogen phosphate that the present invention, which further defines curing agent, is effectively contracted
The short curing time of adhesive realizes the room temperature short time solidification of adhesive.
The experimental results showed that curing time of the adhesive provided by the invention at 5~40 DEG C is no more than 60min.Gluing
At 110 DEG C after drying for 24 hours, tensile shear strength is not less than 3.5MPa for agent, and compression strength is not less than 5.0MPa, and tensile strength is not
Less than 2.9MPa.For adhesive at 1200 DEG C after dry 1h, tensile shear strength is not less than 3.1MPa, and compression strength is not less than
4.8MPa, tensile strength are not less than 2.7MPa.At 1450 DEG C after dry 1h, tensile shear strength is not less than adhesive
2.9MPa, compression strength are not less than 4.6MPa, and tensile strength is not less than 2.5MPa.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides a kind of adhesive, according to parts by weight, comprising:
The modifying agent includes xylitol and sodium tripolyphosphate.
Adhesive provided by the invention includes alpha-alumina, and the alpha-alumina is the aggregate of adhesive.The α-
The parts by weight of alumina powder are 60~70 parts.In certain embodiments of the present invention, the parts by weight of the alpha-alumina
It is 60 parts, 65 parts or 70 parts.
The alpha-alumina preferably includes the alpha-alumina that partial size is 325~400 mesh and partial size is 600~800 mesh
Alpha-alumina.In certain embodiments of the present invention, the alpha-alumina includes the alpha-alumina that partial size is 325 mesh
It is the alpha-alumina of 800 mesh with partial size；Or the alpha-alumina includes alpha-alumina that partial size is 400 mesh and partial size is
The alpha-alumina of 600 mesh.
The partial size be 325~400 mesh alpha-alumina and partial size be 600~800 mesh alpha-alumina quality
Than being preferably 5~5.5:4.5.In certain embodiments of the present invention, the partial size be 325~400 mesh alpha-alumina and
Partial size is that the mass ratio of the alpha-alumina of 600~800 mesh is 5.5:4.5 or 5:4.5.
Adhesive provided by the invention includes sodium metasilicate.The sodium metasilicate is bonding agent.The parts by weight of the sodium metasilicate
It is 10~20 parts.In certain embodiments of the present invention, the parts by weight of the sodium metasilicate are 10 parts, 15 parts or 20 parts.
In the present invention, the sodium metasilicate is preferably sodium metasilicate powder.The sodium metasilicate powder preferably includes two mould silicic acid
Sodium powder end and three mould sodium metasilicate powder.The mass ratio of the two moulds sodium metasilicate powder and three mould sodium metasilicate powder is preferably 1:1.5
~2.In certain embodiments of the present invention, the mass ratio of the two moulds sodium metasilicate powder and three mould sodium metasilicate powder is 1:1.5
Or 1:2.
Adhesive provided by the invention further includes water.The parts by weight of the water are 10~20 parts.Of the invention certain
In embodiment, the parts by weight of the water are 10 parts, 15 parts or 20 parts.In certain embodiments of the present invention, the water is to go
Ionized water.
Adhesive provided by the invention further includes modifying agent.The modifying agent includes xylitol and sodium tripolyphosphate.It is described
The parts by weight of modifying agent are 1~5 part.In certain embodiments of the present invention, the parts by weight of the modifying agent are 1 part, 3 parts
Or 5 parts.
In the present invention, the mass ratio of the xylitol and sodium tripolyphosphate is preferably 1.5~2:1.In certain of the invention
In a little embodiments, the mass ratio of the xylitol and sodium tripolyphosphate is 1.5:1 or 2:1.
Specific modifying agent xylitol and sodium tripolyphosphate are used in adhesive provided by the invention, effectively increase glue
The adhesive property and mechanical strength of stick, meanwhile, the xylitol and sodium tripolyphosphate cooperate other raw materials to act synergistically, so that
The adhesive arrived resistance to fire intensity with higher.
Adhesive provided by the invention further includes curing agent.The parts by weight of the curing agent are 1~5 part.In the present invention
Some embodiments in, the parts by weight of the curing agent are 1 part, 3 parts or 5 parts.
The curing agent preferably includes prodan and aluminium dihydrogen phosphate.The quality of the prodan and aluminium dihydrogen phosphate
Than being preferably 0.8~1:3.In certain embodiments of the present invention, the mass ratio of the prodan and aluminium dihydrogen phosphate is 1:3
Or 0.8:3.
It includes prodan and aluminium dihydrogen phosphate that the present invention, which further defines curing agent, accelerates the solidification of adhesive,
The curing time for effectively shortening adhesive realizes the room temperature short time solidification of adhesive.
The present invention also provides a kind of preparation methods of adhesive described above, comprising the following steps:
Alpha-alumina, sodium metasilicate, modifying agent, curing agent and water are mixed, adhesive is obtained.
The alpha-alumina, sodium metasilicate, modifying agent, curing agent and water content and component be same as above, details are not described herein.
It is in the present invention, described to mix alpha-alumina, sodium metasilicate, modifying agent, curing agent and water preferably are as follows:
First alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed, then the dry powder after mixing is stirred with water and is mixed
It closes.
The mixing preferably carries out in intersecting the double movement batch mixers of shaft.The mixing preferably carries out at normal temperature.Institute
The time for stating mixing is preferably 30~70min.In certain embodiments of the present invention, the time of the mixing is 60min.
The temperature being stirred is preferably room temperature.The present invention has no special limit to the time being stirred
Raw material, can be uniformly mixed by system with water.
The preparation method Easy dosing of adhesive provided by the invention, easy to operate simple and direct, the short time can be realized in room temperature
Solidification, obtained adhesive has preferably adhesive property and mechanical strength, and refractoriness is higher.
After obtaining adhesive, the present invention tries body by the way that adhesive is made in adhesive, in order to test the performance of adhesive,
Preferably, specifically:
The adhesive is poured, is solidified, after maintenance, demoulding obtains adhesive examination body.
The present invention has no special limitation to the method for the pouring, using irrigation method well known to those skilled in the art
?.
The cured temperature is preferably 5~40 DEG C.In certain embodiments of the present invention, the cured temperature is 20
℃.By experiment it can be found that the cured time is no more than 60min, more preferably no more than 43min.
The maintenance preferably carries out at normal temperature.The time of the maintenance is preferably 7~for 24 hours.
The present invention provides a kind of adhesive, according to parts by weight, comprising: 60~70 parts of alpha-alumina；Sodium metasilicate 10
~20 parts；10~20 parts of water；1~5 part of modifying agent；1~5 part of curing agent；The modifying agent includes xylitol and sodium tripolyphosphate.
Specific modifying agent xylitol and sodium tripolyphosphate are used in adhesive provided by the invention, effectively increase the viscous of adhesive
Performance and mechanical strength are tied, meanwhile, the xylitol and sodium tripolyphosphate cooperate other raw materials to act synergistically, the gluing made
Agent resistance to fire intensity with higher.It includes prodan and aluminium dihydrogen phosphate that the present invention, which further defines curing agent, is effectively contracted
The short curing time of adhesive realizes the room temperature short time solidification of adhesive.
The experimental results showed that curing time of the adhesive provided by the invention at 5~40 DEG C is no more than 60min.Gluing
At 110 DEG C after drying for 24 hours, tensile shear strength is not less than 3.5MPa for agent, and compression strength is not less than 5.0MPa, and tensile strength is not
Less than 2.9MPa.For adhesive at 1200 DEG C after dry 1h, tensile shear strength is not less than 3.1MPa, and compression strength is not less than
4.8MPa, tensile strength are not less than 2.7MPa.At 1450 DEG C after dry 1h, tensile shear strength is not less than adhesive
2.9MPa, compression strength are not less than 4.6MPa, and tensile strength is not less than 2.5MPa.
In order to further illustrate the present invention, with reference to embodiments to a kind of adhesive provided by the invention and its preparation side
Method is described in detail, but cannot be understood as limiting the scope of the present invention.
Embodiment 1
A kind of adhesive, according to parts by weight, comprising:
The alpha-alumina includes the alpha-alumina that partial size is 325 mesh and the alpha-alumina that partial size is 800 mesh；Institute
It states alpha-alumina that partial size is 325 mesh and partial size be the mass ratioes of alpha-alumina of 800 mesh is 5:4.5；
The sodium metasilicate includes two mould sodium metasilicate powder and three mould sodium metasilicate powder；The two moulds sodium metasilicate powder and three moulds
The mass ratio of sodium metasilicate powder is 1:1.5；
The modifying agent includes xylitol and sodium tripolyphosphate；The mass ratio of the xylitol and sodium tripolyphosphate is 1.5:
1；
The curing agent includes prodan and aluminium dihydrogen phosphate；The mass ratio of the prodan and aluminium dihydrogen phosphate is
1:3；
Preparation method:
First above-mentioned alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed at normal temperature, the time of the mixing is
60min, then the dry powder after mixing is uniformly mixed at normal temperature with water, obtain adhesive.
Obtained adhesive is poured, is solidified at 20 DEG C, solidification can be completed after 38min, then support at normal temperature
15h is protected, adhesive examination body can be obtained in demoulding.
As can be seen that curing time of the adhesive provided by the invention at 20 DEG C is 38min, curing time is very short.It adopts
It is detected with performance of the adhesive tensile shear strength measuring method to obtained adhesive examination body, the experimental results showed that, glue
Stick at 110 DEG C it is dry for 24 hours after, tensile shear strength 3.5MPa, compression strength 5.4MPa, tensile strength is
2.9MPa.Adhesive is at 1200 DEG C after dry 1h, tensile shear strength 3.1MPa, compression strength 5.1MPa, and tension is strong
Degree is 2.7MPa.At 1450 DEG C after dry 1h, tensile shear strength 3.0MPa, compression strength 5.0MPa resist adhesive
Tensile strength is 2.5MPa.Therefore, the adhesive property of adhesive and mechanical strength are more excellent, and refractoriness is higher.
Embodiment 2
A kind of adhesive, according to parts by weight, comprising:
The alpha-alumina includes the alpha-alumina that partial size is 325 mesh and the alpha-alumina that partial size is 800 mesh；Institute
It states alpha-alumina that partial size is 325 mesh and partial size be the mass ratioes of alpha-alumina of 800 mesh is 5.5:4.5；
The sodium metasilicate includes two mould sodium metasilicate powder and three mould sodium metasilicate powder；The two moulds sodium metasilicate powder and three moulds
The mass ratio of sodium metasilicate powder is 1:1.5；
The modifying agent includes xylitol and sodium tripolyphosphate；The mass ratio of the xylitol and sodium tripolyphosphate is 1.5:
1；
The curing agent includes prodan and aluminium dihydrogen phosphate；The mass ratio of the prodan and aluminium dihydrogen phosphate is
1:3；
Preparation method:
First above-mentioned alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed at normal temperature, the time of the mixing is
60min, then the dry powder after mixing is uniformly mixed at normal temperature with water, obtain adhesive.
Obtained adhesive is poured, is solidified at 20 DEG C, solidification can be completed after 39min, then support at normal temperature
15h is protected, adhesive examination body can be obtained in demoulding.
As can be seen that curing time of the adhesive provided by the invention at 20 DEG C is 39min, curing time is very short.It adopts
It is detected with performance of the adhesive tensile shear strength measuring method to obtained adhesive examination body, the experimental results showed that, glue
Stick at 110 DEG C it is dry for 24 hours after, tensile shear strength 3.7MPa, compression strength 5.5MPa, tensile strength is
3.1MPa.Adhesive is at 1200 DEG C after dry 1h, tensile shear strength 3.3MPa, compression strength 5.2MPa, and tension is strong
Degree is 2.9MPa.At 1450 DEG C after dry 1h, tensile shear strength 3.4MPa, compression strength 5.0MPa resist adhesive
Tensile strength is 2.8MPa.Therefore, the adhesive property of adhesive and mechanical strength are more excellent, and refractoriness is higher.
Embodiment 3
A kind of adhesive, according to parts by weight, comprising:
The alpha-alumina includes the alpha-alumina that partial size is 325 mesh and the alpha-alumina that partial size is 800 mesh；Institute
It states alpha-alumina that partial size is 325 mesh and partial size be the mass ratioes of alpha-alumina of 800 mesh is 5.5:4.5；
The sodium metasilicate includes two mould sodium metasilicate powder and three mould sodium metasilicate powder；The two moulds sodium metasilicate powder and three moulds
The mass ratio of sodium metasilicate powder is 1:2；
The modifying agent includes xylitol and sodium tripolyphosphate；The mass ratio of the xylitol and sodium tripolyphosphate is 2:1；
The curing agent includes prodan and aluminium dihydrogen phosphate；The mass ratio of the prodan and aluminium dihydrogen phosphate is
0.8:3；
Preparation method:
First above-mentioned alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed at normal temperature, the time of the mixing is
60min, then the dry powder after mixing is uniformly mixed at normal temperature with water, obtain adhesive.
Obtained adhesive is poured, is solidified at 20 DEG C, solidification can be completed after 43min, then support at normal temperature
15h is protected, adhesive examination body can be obtained in demoulding.
As can be seen that curing time of the adhesive provided by the invention at 20 DEG C is 43min, curing time is very short.It adopts
It is detected with performance of the adhesive tensile shear strength measuring method to obtained adhesive examination body, the experimental results showed that, glue
Stick at 110 DEG C it is dry for 24 hours after, tensile shear strength 3.5MPa, compression strength 5.0MPa, tensile strength is
3.0MPa.Adhesive is at 1200 DEG C after dry 1h, tensile shear strength 3.2MPa, compression strength 4.8MPa, and tension is strong
Degree is 2.8MPa.At 1450 DEG C after dry 1h, tensile shear strength 2.9MPa, compression strength 4.6MPa resist adhesive
Tensile strength is 2.7MPa.Therefore, the adhesive property of adhesive and mechanical strength are more excellent, and refractoriness is higher.
Embodiment 4
A kind of adhesive, according to parts by weight, comprising:
The alpha-alumina includes the alpha-alumina that partial size is 400 mesh and the alpha-alumina that partial size is 600 mesh；Institute
It states alpha-alumina that partial size is 400 mesh and partial size be the mass ratioes of alpha-alumina of 600 mesh is 5.5:4.5；
The sodium metasilicate includes two mould sodium metasilicate powder and three mould sodium metasilicate powder；The two moulds sodium metasilicate powder and three moulds
The mass ratio of sodium metasilicate powder is 1:1.5；
The modifying agent includes xylitol and sodium tripolyphosphate；The mass ratio of the xylitol and sodium tripolyphosphate is 1.5:
1；
The curing agent includes prodan and aluminium dihydrogen phosphate；The mass ratio of the prodan and aluminium dihydrogen phosphate is
1:3；
Preparation method:
First above-mentioned alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed at normal temperature, the time of the mixing is
60min, then the dry powder after mixing is uniformly mixed at normal temperature with water, obtain adhesive.
Obtained adhesive is poured, is solidified at 20 DEG C, solidification can be completed after 36min, then support at normal temperature
15h is protected, adhesive examination body can be obtained in demoulding.
As can be seen that curing time of the adhesive provided by the invention at 20 DEG C is 36min, curing time is very short.It adopts
It is detected with performance of the adhesive tensile shear strength measuring method to obtained adhesive examination body, the experimental results showed that, glue
Stick at 110 DEG C it is dry for 24 hours after, tensile shear strength 3.8MPa, compression strength 5.6MPa, tensile strength is
3.2MPa.Adhesive is at 1200 DEG C after dry 1h, tensile shear strength 3.5MPa, compression strength 5.2MPa, and tension is strong
Degree is 3.1MPa.At 1450 DEG C after dry 1h, tensile shear strength 3.5MPa, compression strength 5.1MPa resist adhesive
Tensile strength is 3.0MPa.Therefore, the adhesive property of adhesive and mechanical strength are more excellent, and refractoriness is higher.
Comparative example 1
A kind of adhesive, according to parts by weight, comprising:
The alpha-alumina includes the alpha-alumina that partial size is 325 mesh and the alpha-alumina that partial size is 800 mesh；Institute
It states alpha-alumina that partial size is 325 mesh and partial size be the mass ratioes of alpha-alumina of 800 mesh is 5.5:4.5；
The sodium metasilicate includes two mould sodium metasilicate powder and three mould sodium metasilicate powder；The two moulds sodium metasilicate powder and three moulds
The mass ratio of sodium metasilicate powder is 1:1.5；
The modifying agent is water soluble starch；
The curing agent includes prodan and aluminium dihydrogen phosphate；The mass ratio of the prodan and aluminium dihydrogen phosphate is
1:3；
Preparation method:
First above-mentioned alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed at normal temperature, the time of the mixing is
60min, then the dry powder after mixing is uniformly mixed at normal temperature with water, obtain adhesive.
Obtained adhesive is poured, is solidified at 20 DEG C, solidification is completed after 41min, then conserve at normal temperature
Adhesive can be obtained in 15h, demoulding.
It is detected using performance of the adhesive tensile shear strength measuring method to obtained adhesive examination body, experiment knot
Fruit show adhesive at 110 DEG C it is dry for 24 hours after, tensile shear strength 2.5MPa, compression strength 5.3MPa, tension is strong
Degree is 2.3MPa.At 1200 DEG C after dry 1h, tensile shear strength 2.2MPa, compression strength 5.1MPa resist adhesive
Tensile strength is 2.1MPa.Adhesive is at 1450 DEG C after dry 1h, tensile shear strength 1.9MPa, and compression strength is
4.8MPa, tensile strength 1.8MPa.
Comparative example 2
A kind of adhesive, according to parts by weight, comprising:
The alpha-alumina includes the alpha-alumina that partial size is 325 mesh and the alpha-alumina that partial size is 800 mesh；Institute
It states alpha-alumina that partial size is 325 mesh and partial size be the mass ratioes of alpha-alumina of 800 mesh is 5.5:4.5；
The sodium metasilicate includes two mould sodium metasilicate powder and three mould sodium metasilicate powder；The two moulds sodium metasilicate powder and three moulds
The mass ratio of sodium metasilicate powder is 1:1.5；
The modifying agent includes xylitol and sodium tripolyphosphate；The mass ratio of the xylitol and sodium tripolyphosphate is 1.5:
1；
The curing agent is prodan；
Preparation method:
First above-mentioned alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed at normal temperature, the time of the mixing is
60min, then the dry powder after mixing is uniformly mixed at normal temperature with water, obtain adhesive.
Obtained adhesive is poured, is solidified at 20 DEG C, solidification could be completed after 132min, then support at normal temperature
15h is protected, adhesive examination body can be obtained in demoulding.
As can be seen that curing time of the adhesive provided by the invention at 20 DEG C is 132min, curing time is obviously very
It is long.It is detected using performance of the adhesive tensile shear strength measuring method to obtained adhesive examination body, experimental result table
It is bright, adhesive at 110 DEG C it is dry for 24 hours after, tensile shear strength 1.8MPa, compression strength 4.5MPa, tensile strength is
1.2MPa.Adhesive is at 1200 DEG C after dry 1h, tensile shear strength 1.5MPa, compression strength 4.1MPa, and tension is strong
Degree is 1.0MPa.At 1450 DEG C after dry 1h, tensile shear strength 1.1MPa, compression strength 3.8MPa resist adhesive
Tensile strength is 0.9MPa.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of adhesive, according to parts by weight, comprising:
The modifying agent includes xylitol and sodium tripolyphosphate.
2. adhesive according to claim 1, which is characterized in that the alpha-alumina includes that partial size is 325~400 mesh
Alpha-alumina and partial size be 600~800 mesh alpha-alumina.
3. adhesive according to claim 2, which is characterized in that the partial size be 325~400 mesh alpha-alumina and
Partial size is that the mass ratio of the alpha-alumina of 600~800 mesh is 5~5.5:4.5.
4. adhesive according to claim 1, which is characterized in that the sodium metasilicate is sodium metasilicate powder, the sodium metasilicate
Powder includes two mould sodium metasilicate powder and three mould sodium metasilicate powder.
5. adhesive according to claim 4, which is characterized in that the two moulds sodium metasilicate powder and three mould sodium metasilicate powder
Mass ratio be 1:1.5~2.
6. adhesive according to claim 1, which is characterized in that the mass ratio of the xylitol and sodium tripolyphosphate is
1.5~2:1.
7. adhesive according to claim 1, which is characterized in that the curing agent includes prodan and biphosphate
Aluminium.
8. adhesive according to claim 7, which is characterized in that the mass ratio of the prodan and aluminium dihydrogen phosphate is
0.8~1:3.
9. the preparation method of adhesive described in claim 1, comprising the following steps:
Alpha-alumina, sodium metasilicate, modifying agent, curing agent and water are mixed, adhesive is obtained.
10. preparation method according to claim 9, which is characterized in that it is described by alpha-alumina, sodium metasilicate, modifying agent,
Curing agent and water mixing specifically:
First alpha-alumina, sodium metasilicate, modifying agent and curing agent are mixed, then the dry powder after mixing is stirred with water.
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| CN201811195936.9A CN109439203B (en) | 2018-10-15 | 2018-10-15 | Adhesive and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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