CN108410412A - A kind of rapid curing polyurethane water-proof fluid sealant and preparation method thereof - Google Patents
A kind of rapid curing polyurethane water-proof fluid sealant and preparation method thereof Download PDFInfo
- Publication number
- CN108410412A CN108410412A CN201810264240.0A CN201810264240A CN108410412A CN 108410412 A CN108410412 A CN 108410412A CN 201810264240 A CN201810264240 A CN 201810264240A CN 108410412 A CN108410412 A CN 108410412A
- Authority
- CN
- China
- Prior art keywords
- parts
- fluid sealant
- rapid curing
- polyether polyol
- polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- 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
- C08G18/61—Polysiloxanes
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The present invention relates to a kind of rapid curing polyurethane water-proof fluid sealants and preparation method thereof, belong to chemical technology field.The present invention is modified polyurethane using dialkyl polydimethylsiloxane, replace condensation reaction by control polyether polyol and dialkyl polydimethylsiloxane and toluene di-isocyanate(TDI), design and prepare a kind of silicone polyether block polyurethane fluid sealant performed polymer, this chemistry route avoids the phase separation that physical mixing processes occur in high silicone content, and its moisturecuring object has the preferably performances such as low temperature resistant and heat-resisting relative to polyether-polyurethane solidfied material；The present invention enhances rubber cement, reduces production cost, while can assign the excellent flame retardant property of rubber cement, uvioresistant and anti-aging property using the lignin for containing a variety of groups such as alcoholic extract hydroxyl group, phenolic hydroxyl group, carboxyl and methoxyl group on strand as functional stuffing.
Description
Technical field
The present invention relates to a kind of rapid curing polyurethane water-proof fluid sealants and preparation method thereof, belong to chemical technology field.
Background technology
Sealant abbreviation fluid sealant is a kind of multipurpose functional material simultaneously with bonding and sealing performance.It
Not only internal gas or liquid leakage can be prevented from, but also external dust, moisture, moisture, dirt and chemicals can be prevented etc. to invade
Enter, and mechanical oscillation, impact injury can be prevented or achieve the effect that sound-insulating and heat-insulating.Fluid sealant for solve run, drip, leak be
Indispensable important materials play an important roll in modern science and technology and national economy.Polyurethane sealant is in strand
Fluid sealant containing urethano and/or isocyanates base class, be in the world today three categories elastic sealant currently in use it
One.The development of polyurethane sealant has more than 40 years history so far, is mainly used in civil construction industry, hydraulic engineering, traffic
The fields such as transport service.China had achieved certain development in the development of polyurethane sealant with application in recent years.But due to
Cost is higher, does not obtain wide popularization and application, while the small polyurethane sealant of high-performance, pollution far can not also expire at present
The demand of the industries such as sufficient China's automobile, building, refrigeration and ship, most all obtain solve by import, and domestic polyurethane is close
Sealing product is not met by 1/10th of its demand.
Polyurethane sealant generally all contains highly polar group, and tough elastic adhesive layer, polyurethane can be formed after solidification
Molecule can be divided into 3 component parts, i.e. polyether segment, isocyanates segment and the low molecule segment as chain extender.Polyurethane
Molecule is looked at as the block copolymer of soft segment and rigid chain segment, and design feature makes polyurethane sealant to multiple material
There is good bonding.Polyurethane sealant has the following advantages：Excellent wearability；Low-temperature pliability；Performance adjustable extent
It is relatively wide；Mechanical strength is big；Cementability is good；Elasticity is good, has excellent restoration, is applicable to dynamic juncture；Weatherability is good, makes
It is excellent up to 15~20 years oil resistances with the service life；Resistance to biological aging；It is moderate.
But it uses tar polyurethane waterproof gasket cement more now, easily causes pollution environment, endanger human health, and not
It can be long-term heat-resisting；Light color formula is easy by ultraviolet light and aging；One-component polyurethane sealant bin stability is packed and the external world
It is affected, usually solidification is slower；There may be bubbles and crackle under high thermal environment, need to improve.
Invention content
The technical problems to be solved by the invention：For tar polyurethane waterproof gasket cement is used now, easily cause dirty more
Environment is contaminated, endangers human health, and cannot be long-term heat-resisting, light color formula is easy by ultraviolet light and aging, mono-component polyurethane
Fluid sealant bin stability is packed and ectocine is larger, usually the slower problem of solidification, and it is poly- to provide a kind of rapid curing
Urethane waterproof gasket cement and preparation method thereof.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of rapid curing polyurethane water-proof fluid sealant includes following components and parts by weight：100~120 parts of modified polyurethane pre-polymerizations
Body, 15~25 parts of lignin, 150~250 parts of nano-calcium carbonates, 15~20 parts of absolute ethyl alcohols, 15~20 parts of dimethoxym ethanes, 60~80
Part polypropylene glycol, 0.2~1.0 part of ultra-violet absorber, 5~12 parts of silane coupling agents, 0.3~0.5 part of di lauric dibutyl
Tin.
The modified polyurethane prepolymer is polyether polyol and dialkyl polydimethylsiloxane and toluene diisocynate
Ester, under dibutyl tin laurate and toluene effect, a kind of polysiloxane-polyether block polyurethane that alternately prepared by condensation is close
Sealing performed polymer.
The parts by volume of each material be 100~120 parts of polyether polyol, 160~240 parts of toluene di-isocyanate(TDI)s, 100
~120 parts of dialkyl polydimethylsiloxanes, 3.2~3.6 parts of dibutyl tin laurates, 20~30 parts of toluene.
The polyether polyol is the polyether polyol EP330N or polyether polyol MN1000 that vacuum dehydration handles 2~3h
In any one.
The ultra-violet absorber is Benzotriazole Ultraviolet Stabilizer.
The silane coupling agent is silane coupling A -171, silane coupling agent 1110, silane coupling agent 1120, silane idol
Join a variety of in agent KH-560.
A kind of preparation method of the rapid curing polyurethane water-proof fluid sealant the specific steps are：
（1）Take polyether polyol to be fitted into autoclave, seal and be evacuated in reaction kettle vacuum degree be 100~
1000Pa is again heated to 100~120 DEG C of 2~3h of dehydration, is cooled to 60~70 DEG C, obtains pretreatment polyether polyol；
（2）Toluene di-isocyanate(TDI), dibutyl tin laurate is added into pretreatment polyether polyol, and is evacuated to reaction
Vacuum degree is 100~1000Pa in kettle, and it is 5~8kPa to be passed through pressure in nitrogen to kettle, and is heated to 70~80 DEG C, insulation reaction
6~8h is cooled to 60~70 DEG C, obtains base polyurethane prepolymer for use as；
（3）Dialkyl polydimethylsiloxane, toluene are added into base polyurethane prepolymer for use as, and is heated to 70~80 DEG C, heat preservation is anti-
3~4h is answered, discharging is cooled to room temperature, obtains modified polyurethane prepolymer；
（4）Modified polyurethane prepolymer, lignin, nano-calcium carbonate, absolute ethyl alcohol, dimethoxym ethane, polypropylene glycol are taken, planet is packed into
It is stirred under vacuum 20~30min in blender, adds ultra-violet absorber, silane coupling agent, dibutyl tin laurate, continues
It is stirred under vacuum 1~2h, discharging packs, and obtains rapid curing polyurethane water-proof fluid sealant.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention is modified polyurethane using dialkyl polydimethylsiloxane, by controlling polyether polyol and two
Hydroxyl dimethyl silicone polymer replaces condensation reaction with toluene di-isocyanate(TDI), designs and prepares a kind of polysiloxane-polyether
Block polyurethane fluid sealant performed polymer, this chemistry route avoid the phase that physical mixing processes occur in high silicone content
Separation, and its moisturecuring object has the preferably performances such as low temperature resistant and heat-resisting relative to polyether-polyurethane solidfied material；
（2）The present invention is quickly volatilized so that rubber cement stickiness using absolute ethyl alcohol and dimethoxym ethane as diluent by diluent
Rapidly rise, to prevent fluid sealant from generating relative displacement with adherend body, higher initial bonding force is shown as, without additional
Fixation, can directly carry out bonding operation on the vertical plane, and with the volatilization of diluent, catalyst in colloid,
The relative concentration rapid increase of active group, coupling agent so that sealing glue solidifying speed increases substantially, while diluent volatilizees
When micropore can be left in colloid, be convenient for moisture in air infiltration, accelerate the deep cure speed of fluid sealant；
（3）The present invention using contain on strand the lignin of a variety of groups such as alcoholic extract hydroxyl group, phenolic hydroxyl group, carboxyl and methoxyl group as
Functional stuffing enhances rubber cement, reduces production cost, while can assign the excellent flame retardant property of rubber cement, uvioresistant and ageing resistance
Energy.
Specific implementation mode
It takes 100~120mL polyether polyol to be fitted into autoclave, seals and be evacuated to vacuum degree in reaction kettle and be
100~1000Pa is again heated to 100~120 DEG C of 2~3h of dehydration, is cooled to 60~70 DEG C, obtains pretreatment polyether polyols
160~240mL toluene di-isocyanate(TDI)s, 3.2~3.6mL di lauric dibutyls is added into pretreatment polyether polyol in alcohol
Tin, and it is 100~1000Pa to be evacuated to vacuum degree in reaction kettle, it is 5~8kPa to be passed through pressure in nitrogen to kettle, and is heated to
70~80 DEG C, 6~8h of insulation reaction is cooled to 60~70 DEG C, obtains base polyurethane prepolymer for use as, 100 are added into base polyurethane prepolymer for use as
~120mL dialkyl polydimethylsiloxanes, 20~30mL toluene, and 70~80 DEG C are heated to, 3~4h of insulation reaction is cooling
It discharges to room temperature, obtains modified polyurethane prepolymer, take 100~120g modified polyurethane prepolymers, 15~25g lignin, 150~
250g nano-calcium carbonates, 15~20g absolute ethyl alcohols, 15~20g dimethoxym ethanes, 60~80g polypropylene glycols are fitted into planetary mixer
It is stirred under vacuum 20~30min, adds 0.2~1.0g ultra-violet absorbers, 5~12g silane coupling agents, 0.3~0.5g February
Dilaurylate continues 1~2h of vacuum stirring, and discharging packs, and obtains rapid curing polyurethane water-proof fluid sealant.
It takes 100mL polyether polyol to be fitted into autoclave, seals and be evacuated to vacuum degree in reaction kettle and be
100Pa is again heated to 100 DEG C of dehydration 2h, is cooled to 60 DEG C, obtains pretreatment polyether polyol, to pretreatment polyether polyols
160mL toluene di-isocyanate(TDI)s, 3.2mL dibutyl tin laurates are added in alcohol, and is evacuated to vacuum degree in reaction kettle and is
100Pa, it is 5kPa to be passed through pressure in nitrogen to kettle, and is heated to 70 DEG C, and insulation reaction 6h is cooled to 60 DEG C, it is pre- to obtain polyurethane
100mL dialkyl polydimethylsiloxanes, 20mL toluene are added into base polyurethane prepolymer for use as, and is heated to 70 DEG C for aggressiveness, keep the temperature
3h is reacted, discharging is cooled to room temperature, obtains modified polyurethane prepolymer, takes 100g modified polyurethane prepolymers, 15g lignin,
150g nano-calcium carbonates, 15g absolute ethyl alcohols, 15g dimethoxym ethanes, 60g polypropylene glycols are fitted into planetary mixer and are stirred under vacuum
20min, adds 0.2g ultra-violet absorbers, 5g silane coupling agents, and 0.3g dibutyl tin laurates continue to be stirred under vacuum
1h, discharging pack, and obtain rapid curing polyurethane water-proof fluid sealant.
It takes 110mL polyether polyol to be fitted into autoclave, seals and be evacuated to vacuum degree in reaction kettle and be
500Pa is again heated to 110 DEG C of dehydration 2h, is cooled to 65 DEG C, obtains pretreatment polyether polyol, to pretreatment polyether polyols
200mL toluene di-isocyanate(TDI)s, 3.4mL dibutyl tin laurates are added in alcohol, and is evacuated to vacuum degree in reaction kettle and is
500Pa, it is 6kPa to be passed through pressure in nitrogen to kettle, and is heated to 75 DEG C, and insulation reaction 7h is cooled to 65 DEG C, it is pre- to obtain polyurethane
110mL dialkyl polydimethylsiloxanes, 25mL toluene are added into base polyurethane prepolymer for use as, and is heated to 75 DEG C for aggressiveness, keep the temperature
3h is reacted, discharging is cooled to room temperature, obtains modified polyurethane prepolymer, takes 110g modified polyurethane prepolymers, 20g lignin,
200g nano-calcium carbonates, 18g absolute ethyl alcohols, 18g dimethoxym ethanes, 70g polypropylene glycols are fitted into planetary mixer and are stirred under vacuum
25min, adds 0.6g ultra-violet absorbers, 8g silane coupling agents, and 0.4g dibutyl tin laurates continue to be stirred under vacuum
1h, discharging pack, and obtain rapid curing polyurethane water-proof fluid sealant.
It takes 120mL polyether polyol to be fitted into autoclave, seals and be evacuated to vacuum degree in reaction kettle and be
1000Pa is again heated to 120 DEG C of dehydration 3h, is cooled to 70 DEG C, obtains pretreatment polyether polyol, to pretreatment polyether polyols
240mL toluene di-isocyanate(TDI)s, 3.6mL dibutyl tin laurates are added in alcohol, and is evacuated to vacuum degree in reaction kettle and is
1000Pa, it is 8kPa to be passed through pressure in nitrogen to kettle, and is heated to 80 DEG C, and insulation reaction 8h is cooled to 70 DEG C, it is pre- to obtain polyurethane
120mL dialkyl polydimethylsiloxanes, 30mL toluene are added into base polyurethane prepolymer for use as, and is heated to 80 DEG C for aggressiveness, keep the temperature
4h is reacted, discharging is cooled to room temperature, obtains modified polyurethane prepolymer, takes 120g modified polyurethane prepolymers, 25g lignin,
250g nano-calcium carbonates, 20g absolute ethyl alcohols, 20g dimethoxym ethanes, 80g polypropylene glycols are fitted into planetary mixer and are stirred under vacuum
30min, adds 1.0g ultra-violet absorbers, 12g silane coupling agents, and 0.5g dibutyl tin laurates continue to be stirred under vacuum
2h, discharging pack, and obtain rapid curing polyurethane water-proof fluid sealant.
Reference examples：The polyurethane water-proof fluid sealant of Dongguan company production.
The polyurethane water-proof fluid sealant of example and reference examples is detected, specific detection is as follows：
Test the water absorption rate of the mechanical properties such as its tensile strength and elongation at break and polyurethane sealant.
Specific testing result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Tensile strength/MPa | 1.70 | 1.56 | 1.63 | 0.96 |
| Elongation at break/% | 558.1 | 531.2 | 555.3 | 174.4 |
| Water absorption rate/% | 30.95 | 31.88 | 30.12 | 9.93 |
As shown in Table 1, the polyurethane water-proof fluid sealant that prepared by the present invention has excellent mechanical property and water resistance, stretches strong
Degree is up to 1.70MPa, and for elongation at break up to 558.1%, performance indicator basically reaches polyurethane building waterproof gasket cement standard
（JC482-1992）Middle high-class product requirement.
Claims (7)
1. a kind of rapid curing polyurethane water-proof fluid sealant, which is characterized in that including following components and parts by weight：100~120 parts
Modified polyurethane prepolymer, 15~25 parts of lignin, 150~250 parts of nano-calcium carbonates, 15~20 parts of absolute ethyl alcohols, 15~20
Part dimethoxym ethane, 60~80 parts of polypropylene glycols, 0.2~1.0 part of ultra-violet absorber, 5~12 parts of silane coupling agents, 0.3~0.5 part
Dibutyl tin laurate.
2. a kind of rapid curing polyurethane water-proof fluid sealant as described in claim 1, which is characterized in that the modified polyurethane
Performed polymer is polyether polyol and dialkyl polydimethylsiloxane and toluene di-isocyanate(TDI), in dibutyl tin laurate and
Under toluene effect, it is alternately condensed a kind of polysiloxane-polyether block polyurethane fluid sealant performed polymer prepared.
3. a kind of rapid curing polyurethane water-proof fluid sealant as claimed in claim 2, which is characterized in that the body of each material
Product part is 100~120 parts of polyether polyol, 160~240 parts of toluene di-isocyanate(TDI)s, 100~120 parts of dihydroxy polydimethyls
Siloxanes, 3.2~3.6 parts of dibutyl tin laurates, 20~30 parts of toluene.
4. a kind of rapid curing polyurethane water-proof fluid sealant as claimed in claim 2, which is characterized in that the polyether polyol
Any one in the polyether polyol EP330N or polyether polyol MN1000 of 2~3h is handled for vacuum dehydration.
5. a kind of rapid curing polyurethane water-proof fluid sealant as described in claim 1, which is characterized in that the ultraviolet radiation absorption
Agent is Benzotriazole Ultraviolet Stabilizer.
6. a kind of rapid curing polyurethane water-proof fluid sealant as described in claim 1, which is characterized in that the silane coupling agent
It is a variety of in silane coupling A -171, silane coupling agent 1110, silane coupling agent 1120, silane coupling agent KH-560.
7. a kind of preparation method of rapid curing polyurethane water-proof fluid sealant as described in claim 1~6 any one, special
Sign is, the specific steps are：
（1）Take polyether polyol to be fitted into autoclave, seal and be evacuated in reaction kettle vacuum degree be 100~
1000Pa is again heated to 100~120 DEG C of 2~3h of dehydration, is cooled to 60~70 DEG C, obtains pretreatment polyether polyol；
（2）Toluene di-isocyanate(TDI), dibutyl tin laurate is added into pretreatment polyether polyol, and is evacuated to reaction
Vacuum degree is 100~1000Pa in kettle, and it is 5~8kPa to be passed through pressure in nitrogen to kettle, and is heated to 70~80 DEG C, insulation reaction
6~8h is cooled to 60~70 DEG C, obtains base polyurethane prepolymer for use as；
（3）Dialkyl polydimethylsiloxane, toluene are added into base polyurethane prepolymer for use as, and is heated to 70~80 DEG C, heat preservation is anti-
3~4h is answered, discharging is cooled to room temperature, obtains modified polyurethane prepolymer；
（4）Modified polyurethane prepolymer, lignin, nano-calcium carbonate, absolute ethyl alcohol, dimethoxym ethane, polypropylene glycol are taken, planet is packed into
It is stirred under vacuum 20~30min in blender, adds ultra-violet absorber, silane coupling agent, dibutyl tin laurate, continues
It is stirred under vacuum 1~2h, discharging packs, and obtains rapid curing polyurethane water-proof fluid sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264240.0A CN108410412A (en) | 2018-03-28 | 2018-03-28 | A kind of rapid curing polyurethane water-proof fluid sealant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264240.0A CN108410412A (en) | 2018-03-28 | 2018-03-28 | A kind of rapid curing polyurethane water-proof fluid sealant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108410412A true CN108410412A (en) | 2018-08-17 |
Family
ID=63133905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264240.0A Pending CN108410412A (en) | 2018-03-28 | 2018-03-28 | A kind of rapid curing polyurethane water-proof fluid sealant and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108410412A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021910A (en) * | 2018-08-23 | 2018-12-18 | 福建中意铁科新型材料有限公司 | A kind of one-component polyurethane sealant and preparation method thereof |
| CN110982032A (en) * | 2019-12-09 | 2020-04-10 | 上海东大化学有限公司 | Antibacterial water-swellable resin and preparation method and application thereof |
| CN111171258A (en) * | 2020-01-17 | 2020-05-19 | 中科院广州化学有限公司 | Polysiloxane-based polyurethane/lignin elastomer and preparation method and application thereof |
| CN112375533A (en) * | 2020-11-27 | 2021-02-19 | 帅山 | Pressure-maintaining-free reactive polyurethane hot melt adhesive and preparation method thereof |
| CN115433536A (en) * | 2022-09-13 | 2022-12-06 | 广东腾威科技股份有限公司 | Transparent polyurethane electronic sealant |
| WO2023097571A1 (en) * | 2021-12-01 | 2023-06-08 | Dic Corporation | Moisture-curable polyurethane hot-melt resin composition, adhesive, and laminate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096585A (en) * | 2007-06-22 | 2008-01-02 | 中国科学院广州化学研究所 | Nano organic montmorillonite modified end-silicane-group organosilicon modified polyurethane type seal gum and preparation method thereof |
| CN103215005A (en) * | 2013-05-07 | 2013-07-24 | 东北林业大学 | Lignin-containing polyurethane sealant and preparation method thereof |
| CN106947426A (en) * | 2017-03-28 | 2017-07-14 | 常州大学 | A kind of preparation method of weather resistant fluid sealant for building |
-
2018
- 2018-03-28 CN CN201810264240.0A patent/CN108410412A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096585A (en) * | 2007-06-22 | 2008-01-02 | 中国科学院广州化学研究所 | Nano organic montmorillonite modified end-silicane-group organosilicon modified polyurethane type seal gum and preparation method thereof |
| CN103215005A (en) * | 2013-05-07 | 2013-07-24 | 东北林业大学 | Lignin-containing polyurethane sealant and preparation method thereof |
| CN106947426A (en) * | 2017-03-28 | 2017-07-14 | 常州大学 | A kind of preparation method of weather resistant fluid sealant for building |
Non-Patent Citations (1)
| Title |
|---|
| 马营等: "一种快速固化型高强度有机硅改性聚氨酯密封胶的制备", 《中国建筑防水》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021910A (en) * | 2018-08-23 | 2018-12-18 | 福建中意铁科新型材料有限公司 | A kind of one-component polyurethane sealant and preparation method thereof |
| CN110982032A (en) * | 2019-12-09 | 2020-04-10 | 上海东大化学有限公司 | Antibacterial water-swellable resin and preparation method and application thereof |
| CN111171258A (en) * | 2020-01-17 | 2020-05-19 | 中科院广州化学有限公司 | Polysiloxane-based polyurethane/lignin elastomer and preparation method and application thereof |
| CN112375533A (en) * | 2020-11-27 | 2021-02-19 | 帅山 | Pressure-maintaining-free reactive polyurethane hot melt adhesive and preparation method thereof |
| WO2023097571A1 (en) * | 2021-12-01 | 2023-06-08 | Dic Corporation | Moisture-curable polyurethane hot-melt resin composition, adhesive, and laminate |
| CN115433536A (en) * | 2022-09-13 | 2022-12-06 | 广东腾威科技股份有限公司 | Transparent polyurethane electronic sealant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108410412A (en) | A kind of rapid curing polyurethane water-proof fluid sealant and preparation method thereof | |
| CN107892900B (en) | Low-modulus high-resilience single-component silane modified polyether sealant and preparation method thereof | |
| CN107216845B (en) | Siloxane-terminated polyurethane sealant and preparation method thereof | |
| CN104292412B (en) | A kind of cellulose base base polyurethane prepolymer for use as and using its encapsulant, preparation method and application | |
| CN103992633B (en) | A kind of polyurethane caulking material for ballastless track of high-speed railway expansion joint | |
| CN102816549B (en) | Silyl-terminated polyether modified polyurethane adhesive, its preparation method and application thereof | |
| CN107523260B (en) | Two-component dual-cure silicone compound | |
| CN107011855A (en) | Normal temperature cure sealant composition and preparation method thereof | |
| CN103937442A (en) | High-adhesive one-component deoximation type room-temperature vulcanized silicone rubber sealant and preparation method thereof | |
| KR102287124B1 (en) | Use of an adhesive composition based on silylated polymers for cryogenic applications | |
| CN107163908A (en) | One kind is used for automobile lamp and assembles sealed two-component silicone rubber sealant and preparation method thereof | |
| CN109971408A (en) | A kind of rail traffic glass adhering and sealing monocomponent polyurethane glue and manufacturing method | |
| CN108219095B (en) | Single-component high-elongation thick-coating polyurethane elastomer | |
| CN104559137B (en) | High resiliency no-solvent polyurethane loss circulation material and preparation method and application | |
| CN103820074A (en) | One-component high-temperature-resistant quick-vulcanizing dealcoholization type silicone structural sealant and preparation method thereof | |
| CN105820790B (en) | A kind of acid-resistant and heat-resistant elastic adhesive and preparation method thereof | |
| CN104559914B (en) | A kind of Sealant room temperature vulcanization dealcoholysis silicone rubber and preparation method thereof | |
| CN113684003A (en) | Bi-component room temperature vulcanized silicone rubber composition | |
| CN101469067B (en) | Modified silicone rubber and preparation technique thereof | |
| CN109852338A (en) | Fluorosilicone rubber composition, preparation method and the sealant and coating prepared by the composition | |
| CN105038690A (en) | Two-component condensation-type room temperature vulcanization organosilicone electronic casting glue and preparation method thereof | |
| CN103725250B (en) | A kind of solidification liquid seal silicone rubber | |
| CN107474209B (en) | Foam composition, polyurethane plastic, and preparation method and application of polyurethane plastic | |
| CN106753170B (en) | One-component moisture-curable elastic adhesive | |
| CN104559191B (en) | Oil surface adhesion room temperature vulcanization oxime-removed silicone rubber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180817 |