A kind of high-performance building tackiness agent
Technical field
The invention provides a kind of high-performance building tackiness agent, belong to the adhesive technology field.
Background technology
Along with development and the growth in the living standard of society, building, decoration industry day by day increase the demand of architecture adhesion agent.The indexs such as the adhesive strength of the traditional architecture tackiness agent that uses at present, waterproof can not satisfy the demands, and major part contains a large amount of objectionable impuritiess such as aldehydes, organic solvent, and living environment and HUMAN HEALTH are caused great impact.Along with the enhancing of health of people consciousness, indoor finishing and environment more and more come into one's own, and traditional architecture adhesion agent is eliminated gradually, and the architecture adhesion agent with high-performance, environmental protection is more and more concerned, has the great market requirement.
Summary of the invention
For above commentary to prior art, technical problem to be solved by this invention is: improve the performance of architecture adhesion agent, reduce the pollution of tackiness agent.The technical scheme that adopts is:
A kind of high-performance building tackiness agent is made by the following raw material according to the weight part meter: 20 ~ 80 parts of polyvinyl alcohol, 5 ~ 20 parts of Resins, epoxy, 0.1 ~ 2 part of polymeric amide, 4 ~ 12 parts of polyacrylamides, 6 ~ 12 parts of propylene oxide acid diesters, 1 ~ 5 part of polyoxyethylene nonylphenol ether, 20 ~ 60 parts of ethylene-vinyl acetate emulsions, 0.1 ~ 3 part of initiator, 1 ~ 5 part of octyl group Trimethoxy silane, 2 ~ 4 parts of γ-methacryloxypropyl trimethoxy silane, 5 ~ 10 parts of Resorcinol, 5 ~ 10 parts of terra albas, 1 ~ 5 part of wilkinite, 400 ~ 800 parts of deionized waters.
The model of described polyvinyl alcohol is preferably technical grade 1799 types.
The molecular weight of described Resins, epoxy preferably 8000~200000, oxirane value is 0.48 ~ 0.54.
Described polymeric amide be molecular weight preferably 2000 ~ 12000.
Described Molecular Weight for Polyacrylamide preferably 50000 ~ 120000.
Described initiator is the mixture of ammonium persulphate and S-WAT, and mol ratio is 1:1.
Described bentonitic particle diameter is preferably less than 500 microns.
The preparation method is:
S1 adds polyvinyl alcohol, tensio-active agent and part deionized water in reactor, stir and be warming up to approximately 70 ~ 80 ℃, and polyvinyl alcohol is dissolved fully;
S2 puts into Resins, epoxy, propylene oxide acid diester, polymeric amide, polyacrylamide, polyoxyethylene nonylphenol ether, ethylene-vinyl acetate emulsion, initiator, octyl group Trimethoxy silane, γ-methacryloxypropyl trimethoxy silane and deionized water in the described reactor of S1 successively, stir, temperature is controlled at 70 ~ 80 ℃, is incubated 1 ~ 2 hour;
S3 joins Resorcinol, terra alba, wilkinite in the reactor, and 40 ~ 50 ℃ of lower stirrings 15 minutes, rear discharging stirs.
Beneficial effect
The invention provides the high-performance building tackiness agent, have good bonding strength, its shear strength can reach more than the 12MPa, and tensile strength reaches more than the 20MPa.
Embodiment
The weight proportion of table 1 embodiment 1~embodiment 3
Among the above embodiment, employing technical grade 1799 types of vinyl alcohol; The molecular weight of Resins, epoxy is 8000~200000, and oxirane value is 0.48 ~ 0.54; Polymeric amide for molecular weight be 2000 ~ 12000; Molecular Weight for Polyacrylamide is 50000 ~ 120000; Initiator is the mixture of ammonium persulphate and S-WAT, and mol ratio is 1:1; Bentonitic particle size range is 5~500 microns; Tensio-active agent adopts sodium laurylsulfonate.
The preparation method of each embodiment is:
S1 adds polyvinyl alcohol, tensio-active agent and part deionized water in reactor, stir and be warming up to approximately 70 ~ 80 ℃, and polyvinyl alcohol is dissolved fully;
S2 puts into Resins, epoxy, propylene oxide acid diester, polymeric amide, polyacrylamide, polyoxyethylene nonylphenol ether, ethene-vinyl acetate emulsion, initiator, octyl group Trimethoxy silane, γ-methacryloxypropyl trimethoxy silane and deionized water in the described reactor of S1 successively, stir, temperature is controlled at 70 ~ 80 ℃, is incubated 1 ~ 2 hour;
S3 joins Resorcinol, terra alba, wilkinite in the reactor, and 40 ~ 50 ℃ of lower stirrings 15 minutes, rear discharging stirs.
Performance test
The architecture adhesion agent of above embodiment gained is made a service test, and compare with traditional 107 building adhesives.Testing data is as shown in table 2.
The performance test data of table 2 embodiment 1~embodiment 3 and reference examples
|
Test method |
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Reference examples |
Outward appearance |
Range estimation |
White emulsion |
White emulsion |
White emulsion |
The turbid liquid of canescence |
Film formation time/minute |
|
5 |
6 |
6 |
68 |
The set time/hour |
|
16 |
15 |
16 |
25 |
Stripping strength/MPa |
GB/T 2790-1995 |
15 |
14 |
12 |
4 |
Tensile shear strength/MPa |
GB/T 7124-1986 |
23 |
21 |
20 |
8 |
Can see from table, tackiness agent provided by the invention has good adhesiveproperties than traditional building adhesive, and stripping strength can reach more than the 12MPa, and tensile shear strength can reach more than the 20MPa.