CN106008872A - Polyurethane microporous elastomer, and preparation and application thereof - Google Patents
Polyurethane microporous elastomer, and preparation and application thereof Download PDFInfo
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- 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
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- 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
- C08G18/14—Manufacture of cellular products
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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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
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- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- 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
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- 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
- C08G2101/00—Manufacture of cellular products
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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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a polyurethane microporous elastomer, and preparation and application thereof. The invention is characterized in that the polyurethane microporous elastomer is prepared from a polyhydroxylated compound, diisocyanate (NDI), a polymerization inhibitor, and at least one of a foaming agent, a chain extender and/or crosslinking agent, an additive and a catalyst. By selecting the polylol species and adding the appropriate polymerization inhibitor, the service life of the prepolymer is prolonged to 3-4 times, the harsh requirements for technological conditions are lowered, and the waste of materials is reduced, thereby lowering the production cost.
Description
Technical field
The present invention, about producing microvoid polyurethane (PU) elastomer, belongs to polyurethane field.
Background technology
Micro-pore elastomer PU is goods based on NDI, has excellent static state and dynamic property.Particularly suitable
In vibration and impact damping system, such as buffer shock-absorbing element and the bridge damping block of the vehicles such as automobile.Domestic
In other documents, typically first synthesize performed polymer with polyhydric alcohol and NDI, then prepare product with chain extender reaction,
In prior art, polyhydric alcohol and the performed polymer of NDI synthesis, only have 4 hours its service life.Use is set
Standby and process conditions have the highest requirement, which greatly enhances the production cost of goods.Therefore, in the urgent need to changing
Become traditional polyurethane formulations so that the performed polymer of polyhydric alcohol and NDI synthesis improves service life, thus drops
Low to technique with the requirement of equipment, lower production cost.
Summary of the invention
The technical problem to be solved is to provide the poly-ammonia in a kind of service life with longer performed polymer
Ester micro-pore elastomer and its preparation method and application.
In order to solve above-mentioned technical problem, the invention provides a kind of microporous polyurethane elastomer, it is characterised in that
It is prepared raw material and includes polyol, diisocyanate (NDI) and polymerization inhibitor, also include foaming agent,
At least one in chain extender and/or cross-linking agent, additive and catalyst.
Preferably, described polyol be molecular weight be the polyester polyol of 1000～3000.
It is highly preferred that the molecular weight of described polyester polyol is 1500～2500.
Preferably, described polyol be degree of functionality be 2～3.
It is highly preferred that described polyester polyol is alkane binary acid and low molecular weight polyols reaction preparation
Polyester polyol, the polyester polyol of lactone ring opening polymerization, and low molecular weight polyols and one contracting
In one or more in dialkanol and the polycarbonate polyol of dialkyl carbonate or phosgene reaction extremely
Few one.
It is highly preferred that described alkane binary acid contains 4～6 carbon atoms.It is highly preferred that described alkane two
Unit's acid is at least one in succinic acid, 1,3-propanedicarboxylic acid and adipic acid.It is highly preferred that described alkane binary acid is
Adipic acid.
It is highly preferred that described " alkane binary acid and the polyester polyol of low molecular weight polyols reaction preparation "
Employed in low molecular weight polyols contain 2～6 carbon atoms.It is highly preferred that described low-molecular-weight is polynary
Alcohol is at least one in alkane diol and a contracting dioxane glycol.It is highly preferred that described low molecular weight polyols
For ethylene glycol, diethylene glycol, 1,2-PD or 1,3-PD, dipropylene glycol, BDO, 1,5-
Pentanediol, at least in 1,6-hexanediol, decamethylene-glycol, glycerol (glycerol) and trimethylolpropane
Kind.It is highly preferred that described low molecular weight polyols is ethylene glycol, diethylene glycol, BDO and 1,6-second
At least one in glycol.
It is highly preferred that described lactone is 6-caprolactone.
It is highly preferred that the initiator that described lactone ring opening polymerization uses is low molecular weight polyols.It is highly preferred that
The degree of functionality 2 or 3 of described low molecular weight polyols, containing 2～8 carbon atoms.It is highly preferred that described is low
Molecujar weight polyol is ethylene glycol, diethylene glycol, BDO, 1,6-hexanediol, glycerol and trihydroxy methyl
At least one in propane.
It is highly preferred that described " one or more in low molecular weight polyols and a contracting dialkanol and carbonic acid two
Alkyl ester or the polycarbonate polyol of phosgene reaction " in use low molecular weight polyols be BDO
With 1, at least one in 6-hexanediol, a contracting dialkanol is diethylene glycol, dipropylene glycol and a contracting two
At least one in butanediol.
It is highly preferred that described polyester polyol does not use catalyst or catalyst usage amount to be less than when synthesis
0.02 ‰ (on the basis of the weight of polyester polyol).Because used catalyst is typically used during synthesis polyhydric alcohol
Metallic catalyst, not only the hydrolytic stability to polyurethane products produces harmful effect, the most especially to synthesis pre-polymerization
Causing the by-product production such as allophanate during thing, so that prepolymer particle size increases, bin stability declines.
Preferably, described diisocyanate is 1,5-naphthalene diisocyanate (NDI).
The described polymerization inhibitor bin stability improving performed polymer after synthesizing performed polymer, delays urea groups methyl ester
Etc. by-product production, postpone prepolymer viscosity excessively rapid growth.Preferably, described polymerization inhibitor be quinones polymerization inhibitor,
At least one in phenolic inhibitor and mineral acid polymerization inhibitor.It is highly preferred that described polymerization inhibitor is hydrophobic
Mineral acid.It is highly preferred that described polymerization inhibitor is phosphoric acid.
Described chain extender and cross-linking agent are used for improving the mechanical performance of PU elastomer, particularly intensity and hardness.
Preferably, described chain extender is at least one in alkane glycol and a contracting dioxane glycol.It is highly preferred that it is described
The alkane glycol that chain extender is 2,4 or 6 carbon atoms and 4～8 carbon atoms a contracting dioxane glycol in extremely
Few one.It is highly preferred that the alkane glycol of described 2,4 or 6 carbon atoms be ethylene glycol, BDO and
At least one in 1,6-hexanediol.It is highly preferred that the alkane glycol of described 2,4 or 6 carbon atoms be Isosorbide-5-Nitrae-
Butanediol.It is highly preferred that a contracting dioxane glycol of described 4～8 carbon atoms is diethylene glycol and a contracting dipropyl two
At least one in alcohol.Preferably, described cross-linking agent is the trihydroxylic alcohol or at least the one of tetrahydroxylic alcohol of low-molecular-weight
Kind.It is highly preferred that described cross-linking agent has at least three-functionality-degree.It is highly preferred that described cross-linking agent is third
At least one in triol, trimethylolpropane and tetramethylolmethane.Preferably, described chain extender and cross-linking agent
Molecular weight be 40～400, more preferably 60～300.Performance requirement according to preparation.Chain extender and cross-linking agent
Consumption can be 0～20% (weight based on polyol calculating) of polyol, preferably make
With 3～10% (weight based on polyol calculating).
The effect of catalyst is advantageous for accelerating the performed polymer containing isocyano and the hydroxyl in another component and water
Reaction, shortens the formed product time.Preferably, described catalyst is organo-metallic compound and strong basicity amine
In at least one.It is highly preferred that described organo-metallic compound is organo-tin compound and organo-bismuth chemical combination
At least one in thing.It is highly preferred that the pink salt that described organo-tin compound is organic acid and organic acid dioxane
At least one in base pink salt.It is highly preferred that the pink salt of described organic acid be tin octoate and tin laurate extremely
Few one.It is highly preferred that described machine acid dialkyl pink salt is dibutyl tin laurate and dibutyltin maleate
In at least one.It is highly preferred that described bismuth organic compound is the acylate of bismuth.It is highly preferred that institute
The strong basicity amine stated is at least one in amidine, tertiary amine and tetra.It is highly preferred that described amidine is
2,3-dimethyl 3,4,5,6-tetrahydropyrimidines.It is highly preferred that described tertiary amine is triethylamine, triethylene diamine,
At least one in N-methylmorpholine, N-ethylmorpholine and N-cyclohexyl morpholine.It is highly preferred that described four
Alkyl diamine is N, N, N ', N '-tetramethylethylenediamine and N, N, N ', at least one in N '-4-methyl hexamethylene diamine.
Described organo-metallic catalyst and amines catalyst can be used alone or compound use.Preferably compound use.
It is highly preferred that the consumption of described organo-metallic compound is 0.01～3% (weight based on polyol
Calculate), preferably 0.1～1% (weight based on polyol calculating).
Preferably, described foaming agent is boiling point at the low-boiling point liquid compound of 10～90 DEG C of scopes and water extremely
Few one.It is highly preferred that described low-boiling point liquid compound is the alkane of 4～8 carbon atoms, 4～6 carbon
The cycloalkane of atom and the mixture that boiling point is 40～70 DEG C of at least two cycloalkane composition.It is highly preferred that institute
The consumption of the low-boiling point liquid compound stated is 2～15% (weight based on polyol calculating), more excellent
Elect 5～10% (weight based on polyol calculating) as.Water is as foaming agent, and its action principle is water
React with diisocyanate (NDI), release carbon dioxide, so the foaming effect of water is real with carbon dioxide
Existing.It is highly preferred that the consumption of water is 0.1～3.0% (weight based on polyol calculating), more excellent
Elect 0.2～1.5% (weight based on polyol calculating) as.
Preferably, described additive is at least one in surfactant, fire retardant and oxidation stabilizers.
It is highly preferred that described surfactant contributes to the chemical combination that raw material is uniformly distributed and has regulation foam structure
Thing, such as: castor oil sulphates or fatty acid sodium salt or fatty acid amine salt, sulfonate etc., beneficially foam are steady
Compound qualitatively, such as: organosiloxane, ethoxylized fatty alcohol, ricinoleate ester and Oleum Arachidis hypogaeae semen etc..
It is highly preferred that described fire retardant is at least one in organic fire-retardant and inorganic combustion inhibitor.It is highly preferred that
The organic fire-retardant of the elements such as described organic fire-retardant is Halogen, phosphorus, such as TCEP (three-2-chloroethyls-phosphorus
Acid esters) and TCCP (three-2-chloro isopropyl phosphate esters) at least one.It is highly preferred that described is inorganic
Fire retardant is at least one in hydrated alumina, borate and tripolycyanamide.The effect of oxidation stabilizers is to prolong
Delay or the oxidative degradation of suppression polyether polyols with reduced unsaturation.It is highly preferred that described oxidation stabilizers is BHT (2,6-
Di-tert-butyl-4-methy phenol) and TPP (phosphorous fat triphenylmethyl methacrylate) at least one.
Present invention also offers the preparation method of above-mentioned microporous polyurethane elastomer, it is characterised in that including:
Step 1: diisocyanate and part polyhydroxy value compound are reacted and obtains amido-containing acid ester and with isocyanide
The prepolymer of acid group end-blocking, adds polymerization inhibitor, in proportion as a component；
Step 2: by remaining polyol and foaming agent, chain extender and/or cross-linking agent, additive and
At least one in catalyst is mixed in proportion, and obtains b component；
Step 3: a component and b component being mixed, stirring, be poured in mould, closed mould is by mixture
Reaction curing molding, takes out ripening, obtains microporous polyurethane elastomer.
Preferably, in described step 1, the mol ratio of diisocyanate and part polyhydroxy value compound is
2.2～5: 1, more preferably 2.5～3.5: 1.
Preferably, the reaction temperature in described step 1 is 80～160 DEG C, more preferably 110～140 DEG C.
Preferably, the response time in described step 1 is 20～200 minutes, more preferably 30～60 minutes.
Preferably, described amido-containing acid ester and with isocyano end-blocking prepolymer in isocyanate group content be
5～10wt%, more preferably 5.8～8wt%.
Present invention also offers the application in making automobile-used buffer stopper of the above-mentioned microporous polyurethane elastomer.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is through the kind of selected polyhydric alcohol and adds suitable polymerization inhibitor, makes carry the service life of performed polymer
High 3～4 times, reduce the rigors of process conditions, decrease the waste of material, thus reduce and produce into
This.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate
The present invention rather than restriction the scope of the present invention.In addition, it is to be understood that read the present invention lecture content it
After, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within this equally
Application appended claims limited range.
Embodiment 1
A kind of microporous polyurethane elastomer, it prepares raw material and is:
A) polyol: molecular weight is the polycaprolactone diols of 2000, (outsourcing, Japan's contest
Road, PCL 2000).
B) chain extender: BDO
C) diisocyanate (NDI): 1,5-naphthalene diisocyanate
D) catalyst: (bismuth salt (BICAT8, U.S.'s neck is new) and triethylene diamine, by weight 1: 10 configuration)
E) foaming agent: water
F) polymerization inhibitor: the concentration phosphoric acid more than 99%.
G) additive: (mass concentration is the water of 50% to ethoxylized fatty alcohol (L8905 wins wound industrial group)
Solution).
The preparation method of described microporous polyurethane elastomer is:
Step 1: diisocyanate and part polyhydroxy value compound are reacted and obtains amido-containing acid ester and with isocyanide
The prepolymer of acid group end-blocking: the polycaprolactone diols that 1000g molecular weight is 2000 is heated to 130 DEG C,
And mix with 300g diisocyanate (NDI) at this temperature, stir simultaneously, after 20 minutes, survey NCO
Content, scope in 6.0 ± 0.1wt%, is added 0.01g polymerization inhibitor, is stirred for 10 minutes, samples and survey NCO
Content is 5.94wt%, and viscosity when 90 DEG C is 1600mPa s (using rotary viscosimeter analyzer to measure),
Preserve under the conditions of 90 DEG C, as a component；
Step 2: by polycaprolactone diols that 100g molecular weight is 2000 and 20g BDO, 0.175
Mix after the metering of catalyst, 0.75 water, 3g ethoxylized fatty alcohol (50% aqueous solution), obtain b component,
Record hydroxyl value 246mgKOH/g, water content 1.82%.And preserve under the conditions of 60 DEG C.
Step 3: a component 100 weight portion and b component 22.5 weight portion are mixed, fast in mixing and stirring tank
Speed stirring 6 seconds, is poured in the closed mould being heated up to 90～110 DEG C, and closed mould is by mixture
Reaction curing molding, was removed from the molds test piece after 25 minutes, and at 110 DEG C, heating carries out ripening in 12 hours,
Obtain microporous polyurethane elastomer, freezing deburring, assembly packaging, obtain microporous polyurethane elastomer test piece 1.
Embodiment 2
The preparation of test piece 2:
A kind of microporous polyurethane elastomer, it prepares raw material with embodiment 1.
The preparation method of described microporous polyurethane elastomer is:
Use prepare a component and b component with step 1 in embodiment 1 and 2 identical methods, by a component with
B component is respectively placed 12 hours, surveys a component, and NCO content is 5.9%, and viscosity when 90 DEG C is 3000mPa s.
B component hydroxyl value is 242mgKOH/g, and water content is 1.76%.
The method identical with step 3 in embodiment 1 is used to prepare microporous polyurethane elastomer test piece 2.
Embodiment 3
The preparation of test piece 3:
A kind of microporous polyurethane elastomer, it prepares raw material with embodiment 1.
The preparation method of described microporous polyurethane elastomer is:
Use and prepare a component and b component, by a component with step 1 in embodiment 1 and 2 identical methods
Respectively placing 20 hours with b component, surveying a component NCO content is 5.8%, and viscosity when 90 DEG C is 5200
mPa·s.B component hydroxyl value 248mgKOH/g water content 1.74%
The method identical with step 3 in embodiment 1 is used to prepare microporous polyurethane elastomer test piece 3.
Measure static properties have density (by ASTM 3574TestA), hot strength (by ISO 1798),
Elongation at break (is pressed by (by ISO 1798), tearing strength (by ASTM D624TypeT), compression
ASTM D3574TEST D).By following equation calculating compression (CS):
In formula, Ho is the former height of test sample (mm)
H1 is height (mm) after test sample buckling
Following table is that the performance of sample is summed up:
Can be drawn by above-mentioned performance test
1, a component changes over time, and NCO content change is little, but viscosity dramatically increases, in b component
Hydroxyl value is basically unchanged, and water content reduces because of volatilization, but change is little.
2, from performance, test piece 2 is poorer than test piece 1, but the performance of test piece 3 is reduced close to 20% or more than 35
% (tearing strength), reason is that a compositional viscosity increases, and causes the mixing of a, b component uneven, and performance is notable
Decline.
3, being changed from above-mentioned performance, along with the standing time of a component increases, performance is gradually deteriorated, 12h
Within rate of change within 3%, Production requirement can be met.
Claims (10)
1. a microporous polyurethane elastomer, it is characterised in that its prepare raw material include polyol,
Diisocyanate and polymerization inhibitor, also include in foaming agent, chain extender and/or cross-linking agent, additive and catalyst
At least one.
2. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that described is polyhydroxylated
Compound be molecular weight be the polyester polyol of 1000～3000.
3. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that two described Carbimide .s
Ester is 1,5-naphthalene diisocyanate.
4. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that described polymerization inhibitor is
Phosphoric acid.
5. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that described chain extender is
At least one in alkane glycol and a contracting dioxane glycol.
6. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that described cross-linking agent is
At least one in glycerol, trimethylolpropane and tetramethylolmethane.
7. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that described catalyst
For at least one in organo-metallic compound and strong basicity amine.
8. microporous polyurethane elastomer as claimed in claim 1, it is characterised in that described foaming agent
For at least one of the boiling point low-boiling point liquid compound 10～90 DEG C of scopes and water.
9. the preparation method of the microporous polyurethane elastomer according to any one of claim 1-8, its feature exists
In, including:
Step 1: diisocyanate and part polyhydroxy value compound are reacted and obtains amido-containing acid ester and with isocyanide
The prepolymer of acid group end-blocking, adds polymerization inhibitor, in proportion as a component；
Step 2: by remaining polyol and foaming agent, chain extender and/or cross-linking agent, additive and
At least one in catalyst is mixed in proportion, and obtains b component；
Step 3: a component and b component being mixed, stirring, be poured in mould, closed mould is by mixture
Reaction curing molding, takes out ripening, obtains microporous polyurethane elastomer.
10. the making in automobile-used buffer stopper of the microporous polyurethane elastomer according to any one of claim 1-8
Application.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358051A (en) * | 2019-07-22 | 2019-10-22 | 安徽三彩工贸有限责任公司 | A kind of Novel high-elasticity polyurethane harbour anticollision buffer stopper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1097219A (en) * | 1964-12-17 | 1968-01-03 | Monsanto Co | Process for treating organic diisocyanates |
| CN85104908A (en) * | 1985-06-25 | 1987-01-07 | 化学工业部涂料工业研究所 | The polyurethane prepolymer of shelf-stable |
| CN1865311A (en) * | 2006-04-27 | 2006-11-22 | 中国科学院广州化学研究所 | Polymerized thylene carbonate urethane elastomer and its preparation method |
| CN102161744A (en) * | 2010-12-15 | 2011-08-24 | 山西省化工研究所 | Preparation method of high-storage-stability polyester-type polyurethane prepolymer |
| CN104311791A (en) * | 2014-11-18 | 2015-01-28 | 上海恩的爱化学科技有限公司 | Synthesis formula for NDI-based cellular polyurethane elastomer |
-
2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1097219A (en) * | 1964-12-17 | 1968-01-03 | Monsanto Co | Process for treating organic diisocyanates |
| CN85104908A (en) * | 1985-06-25 | 1987-01-07 | 化学工业部涂料工业研究所 | The polyurethane prepolymer of shelf-stable |
| CN1865311A (en) * | 2006-04-27 | 2006-11-22 | 中国科学院广州化学研究所 | Polymerized thylene carbonate urethane elastomer and its preparation method |
| CN102161744A (en) * | 2010-12-15 | 2011-08-24 | 山西省化工研究所 | Preparation method of high-storage-stability polyester-type polyurethane prepolymer |
| CN104311791A (en) * | 2014-11-18 | 2015-01-28 | 上海恩的爱化学科技有限公司 | Synthesis formula for NDI-based cellular polyurethane elastomer |
Non-Patent Citations (3)
| Title |
|---|
| 何愫明: "聚氨酯预聚物制造中的有效阻聚剂-正磷酸", 《涂料工艺》 * |
| 刘益军: "《聚氨酯树脂及其应用》", 30 November 2011, 化学工业出版社 * |
| 潘才元: "《高分子化学》", 31 July 2012, 中国科学技术大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358051A (en) * | 2019-07-22 | 2019-10-22 | 安徽三彩工贸有限责任公司 | A kind of Novel high-elasticity polyurethane harbour anticollision buffer stopper |
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| CN106008872B (en) | 2019-03-29 |
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