CN105505284A - Polysulfide sealant curing agent and preparation technique thereof - Google Patents
Polysulfide sealant curing agent and preparation technique thereof Download PDFInfo
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- CN105505284A CN105505284A CN201610033415.8A CN201610033415A CN105505284A CN 105505284 A CN105505284 A CN 105505284A CN 201610033415 A CN201610033415 A CN 201610033415A CN 105505284 A CN105505284 A CN 105505284A
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- polysulfide sealant
- solidifying agent
- polysulfide
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Classifications
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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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- 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
-
- 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
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention relates to a polysulfide sealant curing agent and a preparation technique thereof, relating to the technical field of preparation of high-polymer sealing materials. The polysulfide sealant curing agent is composed of a main body sizing material component A and a curing agent component B, wherein the component A comprises liquid polysulfide virgin rubber, activated calcium carbonate and dibutyl phthalate; and the component B comprises polyisocyanate, polyether dibasic alcohol and polyether tribasic alcohol. The polysulfide sealant curing agent is prepared by heating to react. The polysulfide sealant curing agent has the advantages of short curing time, short surface drying time (can be controlled within 16 hours), favorable curing effect, higher elastic recovery percentage, favorable elongation percentage, favorable strength and adjustable hardness and strength, and is beneficial to adapting to the structure main body. The polysulfide sealant curing agent has the characteristics of no heavy metal, no toxicity, no pollution, excellent corrosion resistance to acids, alkalis, salts, oil and other organic solvents, excellent aging resistance, no flowing under high-temperature conditions, no brittle fracture under low-temperature conditions, long service life and wide application range. The preparation technique is simple, and does not have emissions of three wastes.
Description
Technical field
The present invention relates to the preparing technical field relating to high molecule sealing materials TR sealant solidifying agent.
Background technology
Along with the development of science and technology, polysulfide sealant is a kind of very excellent sealing material, and its use range is wide, and easy construction, sealing effectiveness are very reliable.But the starting material of this glue are poly-sulphur virgin rubbers, react comparatively slow with solidifying agent, set time is long, construction inconvenience; And solidifying agent is heavy metal, TR sealant can be made to become fragile and be clamminess, cause the use propertieies such as elastic restoration ratio to be deteriorated, easily occur cracking, phenomenon of rupture, affect the effect of whole engineering.Owing to there being heavy metal, unfavorable to environment.
Summary of the invention
The technical problem underlying that the present invention solves is to provide a kind of polysulfide sealant solidifying agent and preparation technology thereof, this polysulfide sealant solidifying agent, not only set time is short, surface drying time can be controlled within 16 hours, and solidification effect is good, there is higher elastic recovery rate, have good unit elongation, intensity simultaneously, hardness and intensity adjustments easily, contribute to the distortion adapting to structure main body; Heavy metal free, nontoxic, pollution-free, acid-and base-resisting, salt, wet goods organic solvent corrodibility and ageing-resistant performance are superior, do not trickle during high temperature, not embrittlement during low temperature, long service life, applied range; Preparation technology is easy, three-waste free discharge.
The main technical schemes of one of the present invention is: a kind of polysulfide sealant solidifying agent, and it is characterized in that comprising component A and B component, the two is used in combination; Component A is main body sizing material, and B component is solidifying agent, and the part by weight of component A and B component is A:B=6 ~ 16:1;
Described component A comprises following parts by weight ratio: liquid polysulfide virgin rubber 10 50 parts, activated Calcium carbonate 10 50 parts, dibutyl phthalate 10 70 parts;
Described B component comprises following parts by weight ratio: polyisocyanates 10 40 parts, polyether Glycols 10 50 parts, polyether-tribasic alcohol 10 50 parts.
Preferably, described component A comprises following parts by weight ratio: liquid polysulfide virgin rubber 15 35 parts, activated Calcium carbonate 20 40 parts, dibutyl phthalate 20 40 parts;
Preferably, described B component comprises following parts by weight ratio: polyisocyanates 10 30 parts, polyether Glycols 10 40 parts, polyether-tribasic alcohol 10 30 parts.
Described polyisocyanates is: tolylene diisocyanate, '-diphenylmethane diisocyanate or hexamethylene diisocyanate, for wherein one or more.
Improve, described component A also comprises following components by weight percent: stearic acid 0.2 2 parts, clorafin 1 10 parts, white carbon black 1 10 parts, 15 parts, resol.
Improve, described B component also comprises following components by weight percent: dibutyl phthalate 5 70 parts, dibutyl tin laurate 0.2-0.3 part, carbon black 15 parts.To increase reactive behavior and elongation further, add carbon black for identifying mixing uniformity.
Preferably, the optimum weight ratio of described component A and B component is A:B=10:1.
The preparation technology of described polysulfide sealant solidifying agent, is characterized in that preparing component A and B component respectively; Component A is main body sizing material, and B component is solidifying agent;
The preparation method of component A is:
1), proportioning is on request got the raw materials ready;
2), above each material is added in vacuum seal mixer or in shredder, fully mix;
The preparation method of B component is:
1), proportioning is on request got the raw materials ready;
2), above each material is added in reactor, heated and stirred 6 hours.
Preferably, described in
heating temperature be 70 90 DEG C, be more preferably 75 85 DEG C.
Positively effect of the present invention is significant: polysulfide sealant solidifying agent of the present invention, and its obtained product is all greater than 2 hours, within surface drying time can be controlled in 16 hours working life; There is higher elastic recovery rate, can not ftracture and also can not rupture, have good elongation rate simultaneously, contribute to the distortion adapting to structure main body; Heavy metal free, nontoxic, pollution-free, acid-and base-resisting, salt, wet goods organic solvent corrodibility and ageing-resistant performance are superior, do not trickle during high temperature, not embrittlement during low temperature, long service life, constructability, applied range; Contribute to the distortion adapting to structure main body.Preparation technology is easy, is suitable for suitability for industrialized production.
Embodiment
For a better understanding of the present invention, below in conjunction with embodiment, the present invention is described in further detail, but the scope of protection of present invention is not limited to the scope that embodiment represents.
Embodiment 1:
Component A: liquid polysulfide virgin rubber 15 parts, active carbonic acid Ca45 part, clorafin 1 part, dibutyl phthalate 30 parts, 1 part, resol.Above each material is added in vacuum seal mixer or in shredder, fully mixing 30 minutes.
B component: tolylene diisocyanate 20 parts, polyether Glycols 50 parts, dibutyl tin laurate 0.2 part, 80 DEG C of heated and stirred 6 hours, airtight preservation.
Ratio A:B=10:1, mixes.By A(white during use) and B(light yellow) component mixes in proportion, constructed in 2 hours.
Embodiment 2:
Component A: liquid polysulfide virgin rubber 25 parts, white carbon black 5 parts, activated Calcium carbonate 44 parts, clorafin 2 parts, dibutyl phthalate 20 parts, 1 part, resol.Above each material is added in vacuum seal mixer or in shredder, fully mixing 30 minutes.
B component: dibutyl phthalate 10 parts, tolylene diisocyanate 25 parts, polyether Glycols 50 parts, dibutyl tin laurate 0.2 part, 78 DEG C of heated and stirred 6 hours, airtight preservation.
Ratio A:B=12:1, mixes.By A(white during use) and B(light yellow) component mixes in proportion, constructed in 2 hours.
Embodiment 3:
Component A: liquid polysulfide virgin rubber 35 parts, activated Calcium carbonate 40 parts, dibutyl phthalate 35 parts, 1 part, resol, stearic acid 1 part.Above each material is added in vacuum seal mixer or in shredder, fully mixing 30 minutes.
B component: dibutyl phthalate 10 parts, tolylene diisocyanate 30 parts, polyether Glycols 50 parts, dibutyl tin laurate 0.3 part, carbon black 1 part.85 DEG C of heated and stirred 6 hours, airtight preservation.
Ratio A:B=8:1, mixes.
Embodiment 4:
Component A: liquid polysulfide virgin rubber 25 parts, active carbonic acid Ca45 part, dibutyl phthalate 25 parts, 1 part, resol.Above each material is added in vacuum seal mixer or in shredder, fully mixing 30 minutes.
B component: dibutyl phthalate 10 parts, '-diphenylmethane diisocyanate 20 parts, polyether Glycols 50 parts, 10 parts, polyethers ternary village.70 DEG C of heated and stirred 6 hours, airtight preservation.
Ratio A:B=11:1, mixes.
Embodiment 5:
Component A: liquid polysulfide virgin rubber 35 parts, activated Calcium carbonate 40 parts, dibutyl phthalate 35 parts, 1 part, resol, stearic acid 1 part.Above each material is added in vacuum seal mixer or in shredder, fully mixing 30 minutes.
B component: dibutyl phthalate 10 parts, '-diphenylmethane diisocyanate 30 parts, polyether Glycols 50 parts, dibutyl tin laurate 0.3 part, carbon black 1 part.80 DEG C of heated and stirred 6 hours, airtight preservation.
Ratio A:B=10:1, mixes.
Embodiment 6:
Component A: liquid polysulfide virgin rubber 35 parts, activated Calcium carbonate 40 parts, dibutyl phthalate 30 parts, stearic acid 1 part.Above each material is added in vacuum seal mixer or in shredder, fully mixing 30 minutes.
B component: dibutyl phthalate 10 parts, tolylene diisocyanate 30 parts, polyether Glycols 50 parts, dibutyl tin laurate 0.3 part, carbon black 1 part.90 DEG C of heated and stirred 4 hours, airtight preservation.
Ratio A:B=10:1, mixes.
Embodiment 7 11, technique is as above-mentioned.Weight proportion is in table 1, table 2: table 1-A component table and table 2-B component table.
Table 1-A component table:
Table 2-B component table:
Embodiment 12 16, technique is as above-mentioned, and weight proportion, in table 3, table 4, shows 3-A component table and table 4-B component table.
Table 3-A component table:
Table 4-B component table:
Embodiment 17 21, technique is as above-mentioned, and weight proportion is in table 5, table 6: table 5-A component table and table 6-B component table.
Table 5-A component table:
Table 6-B component table:
Embodiment the performance test results is in table 7:
Embodiment tensile strength elastic restoration ratio
10.6MPa75%
20.7MPa79%
30.7MPa72%
40.5MPa75%
50.5MPa75%
60.5MPa84%
70.3MPa84%
80.4MPa78%
90.4MPa80%
100.5MPa81%
110.6MPa74%
120.3MPa80%
130.4MPa77%
140.4MPa79%
150.6MPa73%
160.6MPa75%
170.3MPa72%
180.3MPa75%
190.4MPa76%
200.5MPa73%
210.5MPa77%
The working life of above-described embodiment is all greater than 2 hours, and surface drying time is within 16 hours; All there is after solidification acid-and base-resisting, salt, wet goods organic solvent corrodibility, and ageing-resistant performance is superior, has good elasticity, high elongation rate, contributes to the distortion adapting to structure main body.
Above embodiment performance all meets JC/T483-2006 standard.
Claims (9)
1. a polysulfide sealant solidifying agent, it is characterized in that comprising component A and B component, the two is used in combination; Component A is main body sizing material, and B component is solidifying agent, and the part by weight of component A and B component is A:B=6 ~ 16:1;
Described component A comprises following parts by weight ratio: liquid polysulfide virgin rubber 10 50 parts, activated Calcium carbonate 10 50 parts, dibutyl phthalate 10 70 parts;
Described B component comprises following parts by weight ratio: polyisocyanates 10 40 parts, polyether Glycols 10 50 parts, polyether-tribasic alcohol 10 50 parts.
2. a kind of polysulfide sealant solidifying agent according to claim 1, is characterized in that described component A comprises following parts by weight ratio: liquid polysulfide virgin rubber 15 35 parts, activated Calcium carbonate 20 40 parts, dibutyl phthalate 20 40 parts;
Described B component comprises following parts by weight ratio: polyisocyanates 10 30 parts, polyether Glycols 10 40 parts, polyether-tribasic alcohol 10 30 parts.
3. a kind of polysulfide sealant solidifying agent according to claim 1, is characterized in that described polyisocyanates is: tolylene diisocyanate, '-diphenylmethane diisocyanate or hexamethylene diisocyanate, for wherein one or more.
4. a kind of polysulfide sealant solidifying agent according to claim 1, is characterized in that described component A also comprises following components by weight percent: stearic acid 0.2 2 parts, clorafin 1 10 parts, white carbon black 1 10 parts, 15 parts, resol.
5. a kind of polysulfide sealant solidifying agent according to claim 1, is characterized in that described B component also comprises following components by weight percent: dibutyl phthalate 5 70 parts, dibutyl tin laurate 0.2-0.3 part, carbon black 15 parts.
6. a kind of polysulfide sealant solidifying agent according to claim 1, is characterized in that the optimum weight ratio of described component A and B component is A:B=10:1.
7. the preparation technology of a kind of polysulfide sealant solidifying agent according to any one of claim 1-6, is characterized in that preparing component A and B component respectively; Component A is main body sizing material, and B component is solidifying agent;
The preparation method of component A is:
1), proportioning is on request got the raw materials ready;
2), above each material is added in vacuum seal mixer or in shredder, fully mix;
The preparation method of B component is:
1), proportioning is on request got the raw materials ready;
2), above each material is added in reactor, heated and stirred 6 hours.
8. a kind of polysulfide sealant solidifying agent according to claim 7, described in is characterized in that
heating temperature be 70 90 DEG C.
9. a kind of polysulfide sealant solidifying agent according to claim 8, described in is characterized in that
heating temperature be 75 85 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033415.8A CN105505284A (en) | 2016-01-19 | 2016-01-19 | Polysulfide sealant curing agent and preparation technique thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610033415.8A CN105505284A (en) | 2016-01-19 | 2016-01-19 | Polysulfide sealant curing agent and preparation technique thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114854362A (en) * | 2022-04-14 | 2022-08-05 | 河南金欧特实业集团股份有限公司 | High-performance odor-free quick-melting sealant for asphalt pavement |
| CN115838531A (en) * | 2022-12-30 | 2023-03-24 | 郑州郑大可飞科技有限公司 | Elastic self-adhesive insulating sealing gasket with composite structure and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854362A (en) * | 2022-04-14 | 2022-08-05 | 河南金欧特实业集团股份有限公司 | High-performance odor-free quick-melting sealant for asphalt pavement |
| CN114854362B (en) * | 2022-04-14 | 2023-08-15 | 河南金欧特实业集团股份有限公司 | High-performance odor-removing quick-melting sealant for asphalt pavement |
| CN115838531A (en) * | 2022-12-30 | 2023-03-24 | 郑州郑大可飞科技有限公司 | Elastic self-adhesive insulating sealing gasket with composite structure and preparation method thereof |
| CN115838531B (en) * | 2022-12-30 | 2024-05-10 | 郑州郑大可飞科技有限公司 | Elastic self-adhesive insulating sealing gasket with composite structure and preparation method thereof |
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Application publication date: 20160420 |