CN109293864A - The method for preparing polyurethane elastic body explosion-proof for tyre pricking proof - Google Patents
The method for preparing polyurethane elastic body explosion-proof for tyre pricking proof Download PDFInfo
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- CN109293864A CN109293864A CN201811154773.XA CN201811154773A CN109293864A CN 109293864 A CN109293864 A CN 109293864A CN 201811154773 A CN201811154773 A CN 201811154773A CN 109293864 A CN109293864 A CN 109293864A
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
- Tires In General (AREA)
Abstract
The invention belongs to functional polymer material preparation technical fields, and in particular to a kind of method for preparing polyurethane elastic body explosion-proof for tyre pricking proof.The following steps are included: 1) polyether polyol to be reacted to the performed polymer for preparing NCO sealing end with isocyanates；2) isocyanates is added into performed polymer, and stirs evenly, obtains component A；3) catalyst is added into small molecule polyol, is uniformly dispersed, obtains B component；4) it in use, component A and B component are uniformly mixed, after spraying or smearing molding, is heated to 80-100 DEG C and solidifies to get the polyurethane elastomer explosion-proof for tyre pricking proof；Wherein, the polyether polyol be INOVOL C220, INOVOL C230, three kinds or four kinds in INOVOL C240A or INOVOL F330N.Preparation method of the present invention is simple, can be applied to the pricking-proof explosion-proof of tire, easy to use, does not need mold costly.
Description
Technical field
The invention belongs to functional polymer material preparation technical fields, and in particular to a kind of for explosion-proof poly- of tyre pricking proof
Urethane method for producing elastomers.
Background technique
Currently, most of automobile tire installation is General Purpose Rubber tire, but pneumatic tire has a drawback, that is, is afraid of leakage
Gas is afraid of to blow out.Tire is most important to the safety of automobile, once blow out or punctured rapid gas leakage, it is easy to lead to traffic
Accident, especially when galloping.Once tire gas leakage can deform diminution, automobile will the inclined side one of disequilibrium
Side, driver are unable to control direction and braking.So keeping the normal tire pressure of automobile tire, the pricking-proof explosion-proof of tire is carried out, it is right
It is of great significance in vehicle safety travel.
Report and patent explosion-proof for tyre pricking proof at present is more, but most research contents can be attributed to it is same
Seed type increases protective layer between the inner tube of a tyre of tire and cover tire.The reported protective layer kind explosion-proof for tyre pricking proof
There are many class, as puncture-proof steel hoop lining, meshy steel wire annulus, wire, sheetmetal, inflation bead, the elastic rubber full of minute bubbles,
Honeycomb coaly or column spring formula anti-prick ply are in high molecular reactive glue-line, air cushion interlayer of colloidal state etc. always.Each of the above class
Protective layer all has respective characteristic.Also there are a small number of unique methods to be reported, for example increase the (authorization of magnet device before tire
204998269 U of notification number CN), but when the irony sharp object that tire encounters non-ferric class sharp object or ground is fixed, this dress
It sets and effect is not just had for the pricking-proof explosion-proof of tire.
Polyurethane elastomer has the advantages that metal material is incomparable as a kind of common high molecular material, such as:
The adjustable extent of mechanical property is big, and wear-resisting property is superior, and bonding force is strong, processing method multiplicity, oil resistant, ageing-resistant, radiation hardness,
It is low temperature resistant etc..But report of the polyurethane material in tyre pricking proof field is less, and 104910346 A of patent CN discloses a kind of poly-
Urethane elastomer puncture-proof tire liner and preparation method thereof, polyurethane elastomer puncture-proof tire liner obtained, 550-
The thickness of 650mm can resist the puncture of general sharp object.But the preparation of this liner needs more complex mold, entirely when solidification
Between be also required to 4 hours or more, it is inconvenient for use.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of elastic polyurethanes explosion-proof for tyre pricking proof
The preparation method of body, preparation method is simple, and material obtained has preferable toughness and tensile property, can be effectively applied to
The pricking-proof explosion-proof of tire, the soft or hard degree of material is adjustable, and the tyre pricking proof that can be applied to different temperature areas is explosion-proof；User
Just, mold costly is not needed.
The method for preparing polyurethane elastic body explosion-proof for tyre pricking proof of the present invention, comprising the following steps:
1) polyether polyol is reacted to the performed polymer for preparing NCO sealing end with isocyanates；
2) isocyanates is added into performed polymer, and stirs evenly, obtains component A；
3) catalyst is added into small molecule polyol, is uniformly dispersed, obtains B component；
4) in use, component A and B component are uniformly mixed, after spraying or smearing molding, it is heated to 80-100 DEG C admittedly
Change to get the polyurethane elastomer explosion-proof for tyre pricking proof；
Wherein, the polyether polyol be INOVOL C220, INOVOL C230, INOVOL C240A or
Three kinds in INOVOLF330N or four kinds；
In step 1), above-mentioned polyether polyol is reacted to the performed polymer for preparing NCO sealing end with isocyanates respectively,
The NCO content of INOVOLC220 performed polymer is 3-4%, and the NCO content of INOVOL C230 performed polymer is 4-5%, INOVOL
The NCO content of C240A performed polymer is 2-3%, and the NCO content of INOVOL F330N performed polymer is 2-3%.
Above-described polyether polyol is Shandong Inov New Material Co., Ltd. commercial product.
Preferably, the polyether polyol is made of the raw material of following weight percent:
The isocyanates is one or more of PM200, MDI-50 or TDI-80.
The small molecule polyol is one or both of ethylene glycol or propylene glycol.
The catalyst is dibutyl tin dilaurate or stannous octoate.
The dosage of the catalyst is the 0.1- of polyether polyol, isocyanates and small molecule polyol gross mass
0.5wt.%.
In step 4), curing time is no more than 1 hour.In solidification process, after ten minutes can surface drying, can consolidate in one hour
Change.
The dosage relation of component A and B component is as follows:
NCO content in component A: hydroxy radical content=1:0.95-1 in B component.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention provides a kind of method for preparing polyurethane elastic body explosion-proof for tyre pricking proof.On the one hand, the material
Expect it is easy to use, can direct spraying or curing molding after being applied on the inside of cover tire, or after solidifying in simple flat plate mold
It is affixed on the inside of cover tire, does not need mold costly, it is easy to operate, on the other hand, this material and report patent institute
The hard material being related to is different, has preferable toughness and tensile property, sharp object can be effectively prevent to prick into leakage caused by tire
Gas phenomenon.The soft or hard degree of material is adjustable, the tire used suitable for different temperature areas.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but does not limit the present invention.
All raw materials used in embodiment are commercially available unless otherwise specified.
Embodiment 1
(1) preparation of component A: taking appropriate polyether glycol I NOVOL C230 to be heated to 100 DEG C, vacuum dehydration two small
When, 70 DEG C are then cooled to hereinafter, appropriate isocyanates (MDI-50) is added, and are warming up to 80 DEG C of two hours of reaction, are obtained pre-
Aggressiveness, same method preparation INOVOL C240A, INOVOL F330N performed polymer, INOVOL C230, INOVOL C240A,
The NCO content of INOVOL F330N performed polymer is respectively 4.6%, 2.7%, 2.8%.INOVOL C230, INOVOL are taken respectively
Each 20 grams of the performed polymer of C240A, 7 grams of INOVOL F330N performed polymer is taken, 2.5 grams of MDI-50 are added after mixing, stir evenly i.e.
Component A is obtained, sealed storage is spare.
(2) preparation of B component: taking 1.8 grams of ethylene glycol and 0.2 gram of catalyst dibutyltin dilaurylate, is uniformly mixed
Afterwards up to B component.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is sprayed on the inside of Outer Tyre, 80 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is curable in one hour.Mechanical test performance: elongation at break 4500%,
Tensile strength 1.23MPa.
Embodiment 2
(1) preparation of component A: appropriate polyether glycol I NOVOL C230 is taken to be heated to 100 DEG C of vacuum dehydrations two small
When, be then cooled to 70 DEG C or less be added appropriate isocyanates (MDI-50 accounts for 90%, PM200 and accounts for 10%), be warming up to 80 DEG C it is anti-
Two hours are answered, performed polymer is obtained, same method prepares INOVOL C240A, INOVOL F330N performed polymer, INOVOL
The NCO content of C230, INOVOL C240A, INOVOL F330N performed polymer is respectively 4.6%, 2.7%, 2.8%.It takes respectively
Each 20 grams of the performed polymer of INOVOL C230, INOVOL C240A, takes 7 grams of INOVOL F330N performed polymer, 2.5 is added after mixing
Gram MDI-50 stirs evenly up to component A, and sealed storage is spare.
(2) preparation of B component: taking 1.95 grams of propylene glycol and 0.22 gram of catalyst dibutyltin dilaurylate, and mixing is equal
Up to B component after even.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is applied on the inside of Outer Tyre, 80 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is curable in one hour.Mechanical test performance: elongation at break 4300%,
Tensile strength 1.31MPa.
Embodiment 3
(1) preparation of component A: appropriate polyether glycol I NOVOL C220 is taken to be heated to 100 DEG C of vacuum dehydrations two small
When, it is then cooled to 70 DEG C or less and appropriate isocyanates (MDI-50) is added, be warming up to 80 DEG C of two hours of reaction, obtain pre-polymerization
Body, same method preparation INOVOL C240A, INOVOL F330N performed polymer, INOVOL C220, INOVOL C240A,
The NCO content of INOVOL F330N performed polymer is respectively 3.4%, 2.7%, 2.8%.INOVOL C230, INOVOL are taken respectively
Each 20 grams of the performed polymer of C240A, 7 grams of INOVOL F330N performed polymer is taken, 2.5 grams of MDI-50 are added after mixing, stir evenly i.e.
Component A is obtained, sealed storage is spare.
(2) preparation of B component: taking 1.8 grams of ethylene glycol and 0.2 gram of catalyst dibutyltin dilaurylate, is uniformly mixed
Afterwards up to B component.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is sprayed on the inside of Outer Tyre, 80 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is curable in one hour.Mechanical test performance: elongation at break 4100%,
Tensile strength 1.12MPa.
Embodiment 4
(1) preparation of component A: appropriate polyether glycol I NOVOL C230 is taken to be heated to 100 DEG C of vacuum dehydrations two small
When, it is then cooled to 70 DEG C or less and appropriate isocyanates (MDI-80) is added, be warming up to 80 DEG C of two hours of reaction, obtain pre-polymerization
Body, same method preparation INOVOL C240A, INOVOL F330N performed polymer, INOVOL C230, INOVOL C240A,
The NCO content of INOVOL F330N performed polymer is respectively 4.6%, 2.7%, 2.8%.INOVOL C230, INOVOL are taken respectively
It each 20 grams of the performed polymer of C240A, takes 7 grams of INOVOL F330N performed polymer, 2.9 grams of PM200 is added after mixing, stir evenly to obtain the final product
Component A, sealed storage are spare.
(2) preparation of B component: taking 1.8 grams of ethylene glycol and 0.2 gram of octoate catalyst stannous, after mixing up to B group
Point.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is sprayed on the inside of Outer Tyre, 100 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is curable in one hour.Mechanical test performance: elongation at break 4400%,
Tensile strength 1.26MPa.
Embodiment 5
(1) preparation of component A: appropriate polyether glycol I NOVOL C230 is taken to be heated to 100 DEG C of vacuum dehydrations two small
When, it is then cooled to 70 DEG C or less and appropriate isocyanates (MDI-80) is added, be warming up to 80 DEG C of two hours of reaction, obtain pre-polymerization
Body, same method preparation INOVOL C240A, INOVOL F330N performed polymer, INOVOL C230, INOVOL C240A,
The NCO content of INOVOL F330N performed polymer is respectively 4.6%, 2.7%, 2.8%.INOVOL C230, INOVOL are taken respectively
Each 20 grams of the performed polymer of C240A, 15 grams of INOVOL F330N performed polymer is taken, 2.5 grams of PM200 are added after mixing, stir evenly i.e.
Component A is obtained, sealed storage is spare.
(2) preparation of B component: taking 1.95 grams of ethylene glycol and 0.22 gram of octoate catalyst stannous, after mixing up to B
Component.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is applied on the inside of Outer Tyre, 100 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is curable in one hour.Mechanical test performance: elongation at break 3800%,
Tensile strength 1.62MPa.
Embodiment 6
(1) preparation of component A: appropriate polyether glycol I NOVOL C230 is taken to be heated to 100 DEG C of vacuum dehydrations two small
When, it is then cooled to 70 DEG C or less and appropriate isocyanates (MDI-80) is added, be warming up to 80 DEG C of two hours of reaction, obtain pre-polymerization
Body, same method preparation INOVOL C240A, INOVOL F330N performed polymer, INOVOL C230, INOVOL C240A,
The NCO content of INOVOL F330N performed polymer is respectively 4.6%, 2.7%, 2.8%.INOVOL C230, INOVOL are taken respectively
Each 20 grams of the performed polymer of C240A, 20 grams of INOVOL F330N performed polymer is taken, 2.5 grams of PM200 are added after mixing, stir evenly i.e.
Component A is obtained, sealed storage is spare.
(2) preparation of B component: taking 2.05 grams of ethylene glycol and 0.22 gram of catalyst dibutyltin dilaurylate, and mixing is equal
Up to B component after even.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is applied on the inside of Outer Tyre, 100 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is i.e. curable in one hour.Mechanical test performance: elongation at break
3650%, tensile strength 1.71MPa.
Embodiment 7
(1) preparation of component A: appropriate polyether glycol I NOVOL C230 is taken to be heated to 100 DEG C of vacuum dehydrations two small
When, it is then cooled to 70 DEG C or less and appropriate isocyanates (MDI-50) is added, be warming up to 80 DEG C of two hours of reaction, obtain pre-polymerization
Body, same method prepare INOVOL C240A, INOVOL F330N performed polymer, INOVOL C230, INOVOL C240A,
The NCO content of INOVOL F330N performed polymer is respectively 4.5%, 2.5%, 2.5%.INOVOL C230, INOVOL are taken respectively
Each 20 grams of the performed polymer of C240A, 10 grams of INOVOL F330N performed polymer is taken, 1.74 grams of TDI-80 are added after mixing, stir evenly
Up to component A, sealed storage is spare.
(2) preparation of B component: taking 1.55 grams of ethylene glycol and 0.2 gram of catalyst dibutyltin dilaurylate, is uniformly mixed
Afterwards up to B component.
(3) it after being mixed and stirred for the A of above-mentioned preparation, B component uniformly, is applied on the inside of Outer Tyre, 80 DEG C in drying chamber
In the environment of place 10 minutes, can surface drying molding, it is curable in one hour.Mechanical test performance: elongation at break 4550%,
Tensile strength 1.07MPa.
Claims (8)
1. a kind of method for preparing polyurethane elastic body explosion-proof for tyre pricking proof, it is characterised in that: the following steps are included:
1) polyether polyol is reacted to the performed polymer for preparing NCO sealing end with isocyanates；
2) isocyanates is added into performed polymer, and stirs evenly, obtains component A；
3) catalyst is added into small molecule polyol, is uniformly dispersed, obtains B component；
4) in use, component A and B component are uniformly mixed, after spraying or smearing molding, it is heated to 80-100 DEG C of solidification, i.e.,
It must be used for the explosion-proof polyurethane elastomer of tyre pricking proof；
Wherein, the polyether polyol is INOVOL C220, INOVOL C230, INOVOL C240A or INOVOL F330N
In three kinds or four kinds；
In step 1), above-mentioned polyether polyol is reacted to the performed polymer for preparing NCO sealing end, INOVOL with isocyanates respectively
The NCO content of C220 performed polymer is 3-4%, and the NCO content of INOVOL C230 performed polymer is 4-5%, INOVOL C240A pre-polymerization
The NCO content of body is 2-3%, and the NCO content of INOVOL F330N performed polymer is 2-3%.
2. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
The polyether polyol is made of the raw material of following weight percent:
3. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
The isocyanates is one or more of PM200, MDI-50 or TDI-80.
4. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
The small molecule polyol is one or both of ethylene glycol or propylene glycol.
5. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
The catalyst is dibutyl tin dilaurate or stannous octoate.
6. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
The dosage of the catalyst is the 0.1-0.5wt.% of polyether polyol, isocyanates and small molecule polyol gross mass.
7. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
In step 4), curing time is no more than 1 hour.
8. the method for preparing polyurethane elastic body explosion-proof for tyre pricking proof according to claim 1, it is characterised in that:
The dosage relation of component A and B component is as follows:
NCO content in component A: hydroxy radical content=1:0.95-1 in B component.
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| CN201811154773.XA CN109293864B (en) | 2018-09-30 | 2018-09-30 | Preparation method of polyurethane elastomer for preventing tire from being punctured and explosion |
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| CN201811154773.XA CN109293864B (en) | 2018-09-30 | 2018-09-30 | Preparation method of polyurethane elastomer for preventing tire from being punctured and explosion |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527060A (en) * | 2019-08-16 | 2019-12-03 | 青岛喜乐途新材料科技有限公司 | A kind of polyurethaneurea compositions and its polyurethane urea coating preparation method |
| WO2020248753A1 (en) * | 2019-06-12 | 2020-12-17 | 东莞市旭宸环保科技有限公司 | Self-repairing material for preventing tire puncture and preparation method therefor |
| CN112848814A (en) * | 2021-01-15 | 2021-05-28 | 江苏久祥科技有限公司 | Anti-prick tire liner and preparation method thereof |
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