CN106674467A - Environment-friendly polyurethane prepolymer and preparation method thereof - Google Patents
Environment-friendly polyurethane prepolymer and preparation method thereof Download PDFInfo
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- CN106674467A CN106674467A CN201710035648.6A CN201710035648A CN106674467A CN 106674467 A CN106674467 A CN 106674467A CN 201710035648 A CN201710035648 A CN 201710035648A CN 106674467 A CN106674467 A CN 106674467A
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- polyurethane prepolymer
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- isocyanates
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3893—Low-molecular-weight compounds having heteroatoms other than oxygen containing silicon
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the field of fine chemical engineering, and particularly relates to an environment-friendly polyurethane prepolymer and a preparation method thereof. Polypropylene carbonate polylol and isocyanates are used as raw materials to prepare a polyurethane adhesive, and the polyurethane adhesive is subjected to termination modification by organosilane to obtain the environment-friendly polyurethane prepolymer, thereby lowering the release of free isocyanates and other substances harmful to the human body, and implementing no pollution. The prepolymer has the advantages of high strength, hydrolysis resistance, low bubbling tendency and stable performance, and can be widely used in the fields of traditional production of adhesives, sealants, paints and elastomers and the like.
Description
Technical field
The invention belongs to field of fine chemical, and in particular to a kind of Environment-friendlypolyurethane polyurethane prepolymer and preparation method thereof.
Background technology
Polyurethane is that main chain containing-NHCOO- constitutional repeating units is birdsed of the same feather flock together compound, mainly by isocyanates and hydroxylating
Compound is polymerized.Because polyurethane contains highly polar carbamate groups, insoluble in non-polar group, with good oil resistant
Property, toughness, wearability, resistance to ag(e)ing and cohesive, can be obtained the material with wide temperature range, such as elastomer, thermoplasticity
Resin and thermosetting resin etc..Polyurethane extensively should at present as a kind of high-molecular organic material with compared with high performance-price ratio
For the every field in real life, its yield and consumption figure also rise year by year.Data show, 2014, Chinese poly- ammonia
Ester consumption figure reaches 9,600,000 tons, and 2008-2014 China grows beyond 10% in polyurethane consumption figure year.
However, all different using end in a large number in preparation process in many products such as coating, adhesive and fluid sealant product
Cyanate base polyurethane prepolymer for use as, wherein comprising substantial amounts of free isocyanate.During construction and material solidification, part is free
Isocyanates are evaporated, and especially the material such as toluene di-isocyanate(TDI), to human body health hazard is caused.Due to polyurethane it is a large amount of
Use, the Heavy environmental pollution for bringing produces larger harm, which results in the extensive concern of people, together to person health
When be accompanied by China's expanding economy, demand more and more higher of the people to environment-friendly type high performance material.Therefore, a kind of environmental protection is researched and developed
Type Polyurethane Prepolymer is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, present invention is primarily targeted at providing a kind of Environment-friendlypolyurethane polyurethane prepolymer and preparation method thereof,
The high problem of free isocyanate content in for overcoming existing isocyanate terminated base polyurethane prepolymer for use as.
The concrete technical scheme of the present invention is as follows：
The invention provides a kind of Environment-friendlypolyurethane polyurethane prepolymer, it prepares raw material includes：Poly (propylene carbonate) is polynary
Alcohol, isocyanates, organosilan, polymerization inhibitor and catalyst.
Preferably, by weight, 100 parts of the poly (propylene carbonate) polyhydric alcohol, 30~75 parts of isocyanates, organosilicon
0.01~2 part of 0.5~20 part of alkane, 0.01~1 part of polymerization inhibitor and catalyst.
Preferably, the molecular weight of the poly (propylene carbonate) polyhydric alcohol is 1000-8000, and hydroxy functionality is 2-6, molecule
The mole fraction of interior carbonate group is 0.25-0.45.
Preferably, the molecular weight of the poly (propylene carbonate) polyhydric alcohol is 1500-4000, and hydroxy functionality is 2-3, molecule
The mole fraction of interior carbonate group is 0.3-0.4.
Preferably, the isocyanates are selected from methyl diphenylene diisocyanate, Carbodiimide-Modified diphenyl methane
One or more in diisocyanate and poly methylene poly phenyl poly isocyanate.
Preferably, the organosilan selected from gamma-aminopropyl-triethoxy-silane, γ-aminopropyltrimethoxysilane,
γ-aminopropyltriethoxy diethoxy silane, γ-aminopropyltriethoxy dimethoxysilane and N- phenyl-gamma-aminopropyl-triethoxy
One or more of silane.
Preferably, the polymerization inhibitor is selected from phosphoric acid or Benzenecarbonyl chloride..
Preferably, the one kind of the catalyst in the zinc of dibutyl tin laurate, stannous iso caprylate and isooctyl acid Asia
Or it is various.
Present invention also offers the preparation method of above-mentioned Environment-friendlypolyurethane polyurethane prepolymer, including：
A) will mix with isocyanates, polymerization inhibitor and catalyst after the polynary dehydration of alcohols of poly (propylene carbonate), reaction is obtained
Reaction intermediate；
B) the reaction intermediate cooling is treated, adds organosilan, reaction to obtain the Environment-friendlypolyurethane polyurethane prepolymer.
Preferably, the temperature reacted described in step a) is 60~100 DEG C, and the time is 1~5h.
Preferably, cooling described in step b) is to be cooled to 10~60 DEG C.
Preferably, the temperature reacted described in step b) is 10~60 DEG C, and the time is 0.5~2h.
Compared with prior art, the present invention as raw material with poly (propylene carbonate) polyhydric alcohol and isocyanates by being prepared into
Adhesive for polyurethane, then carries out blocking modification using organosilan, has obtained a kind of Environment-friendlypolyurethane polyurethane prepolymer, reduces
The release of the harmful material such as free isocyanate, green non-pollution, and the performed polymer shear strength height, hydrolysis,
Easy to foaming and stable performance is not allowed；Poly (propylene carbonate) polyhydric alcohol used in the present invention is the cost with carbon dioxide as raw material
It is cheap, significance is respectively provided with to environmental conservation, energy-saving and emission-reduction after large-scale production.Therefore, polyurethane provided by the present invention is pre-
Aggressiveness and preparation method thereof can be widely applied to the numerous areas such as the production of traditional adhesive, fluid sealant, coating, elastomer.
Specific embodiment
Once single group was prepared for as raw material with poly (propylene carbonate) polyhydric alcohol (PPC) during the early-stage Study of the present invention
Part adhesive for polyurethane, it is found that the adhesive forms glue film strength and polyurethane is close, and especially poly- higher than conventional polyether type
, yet with isocyanates large usage quantity, easily there is the shortcoming of foaming in urethane when using under moisture conditions.To overcome this to ask
Topic, through concentrating on studies, discovery is prepared after base polyurethane prepolymer for use as inventor using PPC, is modified by adding organosilan,
Can obtain that free isocyanate content is low, product heat stability is good, construction when not easy to foaming, cohesive force is strong, the ring of hydrolysis
Protect Type Polyurethane Prepolymer.The product can be used for the fields such as sport court, construction, house ornamentation, before wide market
Scape.
The invention provides a kind of Environment-friendlypolyurethane polyurethane prepolymer, it prepares raw material includes：Poly (propylene carbonate) is polynary
Alcohol, isocyanates, organosilan, polymerization inhibitor and catalyst.
Further, by weight, 100 parts of poly (propylene carbonate) polyhydric alcohol, 30~75 parts of isocyanates, organosilan
0.01~2 part of 0.5~20 part, 0.01~1 part of polymerization inhibitor and catalyst.
In the present invention, the poly (propylene carbonate) polyhydric alcohol is with carbon dioxide as initiation material, in initiator, catalysis
Agent effect it is lower with expoxy propane, allyl glycidyl ether copolymerization, it is with low cost, after large-scale production to environmental conservation,
Energy-saving and emission-reduction are respectively provided with significance.
Further, the molecular weight of the poly (propylene carbonate) polyhydric alcohol is preferably 1000-8000, more preferably 1500-
4000；Its hydroxy functionality is preferably 2-6, more preferably 2-3；The mole fraction of its intramolecular carbonate group is preferably
0.25-0.45, more preferably 0.3-0.4.
Further, the poly (propylene carbonate) polyhydric alcohol is preferably poly (propylene carbonate) dihydroxylic alcohols.
In the present invention, the isocyanates are selected from methyl diphenylene diisocyanate (MDI), Carbodiimide-Modified two
One or more in methylenebis phenyl isocyanate (liquefied mdi) and poly methylene poly phenyl poly isocyanate (thick MDI).
In the present invention, the organosilan is selected from gamma-aminopropyl-triethoxy-silane (KH550), γ-aminopropyl front three
TMOS (KH540), γ-aminopropyltriethoxy diethoxy silane, γ-aminopropyltriethoxy dimethoxysilane and N- phenyl-
One or more of gamma-aminopropyl-triethoxy-silane.
Organosilicon material has good thermostability, weatherability, hydrophobicity, electric insulation, resistance to combustion, nontoxic, corrosion-free and life
The excellent properties such as reason inertia, by organosilan the modified of polyurethane is applied to, and effectively overcomes the performance deficiency of polyurethane material,
Part excessively free poisonous NCO group is solved the problems, such as, the feature performance benefit of organosilicon is combined.
In the present invention, the polymerization inhibitor is selected from phosphoric acid or Benzenecarbonyl chloride..
In the present invention, the catalyst is in the zinc of dibutyl tin laurate, stannous iso caprylate and isooctyl acid Asia
One or more.
Present invention also offers the preparation method of above-mentioned Environment-friendlypolyurethane polyurethane prepolymer.In the present invention, by using poly- carbon
Sour Asia polyhydric alcohol reacts with isocyanates, obtains terminal isocyanate group base polyurethane prepolymer for use as, is then changed using organosiloxane again
Property terminal isocyanate group base polyurethane prepolymer for use as, synthesized end siloxy group base polyurethane prepolymer for use as, be finally obtained environment-friendly modified poly-
Urethane performed polymer.
Further, the preparation method of above-mentioned Environment-friendlypolyurethane polyurethane prepolymer is preferably：
A) will mix with isocyanates, polymerization inhibitor and catalyst after the polynary dehydration of alcohols of poly (propylene carbonate), reaction is obtained
Reaction intermediate；
B) the reaction intermediate cooling is treated, adds organosilan, reaction to obtain the Environment-friendlypolyurethane polyurethane prepolymer.
Further, the temperature reacted described in step a) is 60~100 DEG C, and the time is 1~5h.
Further, cooling described in step b) is to be cooled to 10~60 DEG C.
Further, the temperature reacted described in step b) is 10~60 DEG C, and the time is 0.5~2h.
By performance test, the organic siloxane modified base polyurethane prepolymer for use as obtained by discovery technical solution of the present invention
Combination property is better than prior art, and is that a environmental type is produced to the healthy non-hazardous of environment, production and user of service
Product, can be widely applied to the numerous areas such as the production of traditional adhesive, fluid sealant, coating, elastomer, with more environmentally friendly, intensity
The advantages such as height, good weatherability.
Technical scheme is clearly and completely described below in conjunction with the specific embodiment of the invention, it is clear that
Described embodiment is a part of embodiment of the invention, rather than the embodiment of whole.Those skilled in the art should manage
Solution, modifies to the specific embodiment of the present invention or some technical characteristics is replaced on an equal basis, without deviating from the present invention
The spirit of technical scheme, all should cover in the scope of protection of the invention.
Embodiment 1
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.04 part of phosphoric acid of addition, 0.04 part of stannous octoate, 70 parts of liquefied mdi, 80 DEG C are reacted 2 hours, are cooled to 40
DEG C, KH540 is added, react 1 hour, obtain Jing siloxane modified polyurethane performed polymers.
Embodiment 2
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.18 part of phosphoric acid of addition, 0.04 part of stannous octoate, 39 parts of liquefied mdi, 80 DEG C are reacted 2 hours, are cooled to 40
DEG C, 10 parts of KH540 is added, react 1 hour, obtain Jing siloxane modified polyurethane performed polymers.
Embodiment 3
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.08 part of phosphoric acid of addition, 0.04 part of stannous octoate, 39 parts of liquefied mdi, 70 DEG C are reacted 4 hours, are cooled to 20
DEG C, 3 parts of KH540 is added, react 1.5 hours, obtain Jing siloxane modified polyurethane performed polymers.
Embodiment 4
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.5 part of phosphoric acid of addition, 0.01 part of stannous octoate, 55 parts of liquefied mdi, 90 DEG C are reacted 1 hour, are cooled to 50
DEG C, 1.5 parts of KH550 is added, react 1 hour, obtain Jing siloxane modified polyurethane performed polymers.
Embodiment 5
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.2 part of phosphoric acid of addition, 0.02 part of stannous octoate, 50 parts of liquefied mdi, 85 DEG C are reacted 2 hours, are cooled to 40
DEG C, 5 parts of KH550 is added, react 1 hour, obtain Jing siloxane modified polyurethane performed polymers.
Embodiment 6
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.01 part of phosphoric acid of addition, 0.01 part of stannous octoate, 60 parts of liquefied mdi, 80 DEG C are reacted 2 hours, are cooled to 30
DEG C, 20 parts of KH550 is added, react 1 hour, obtain Jing siloxane modified polyurethane performed polymers.
Comparative example 1
100 parts of polyether polyol (220) are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C of evacuation take off
Water 2 hours, 0.08 part of phosphoric acid of addition, 0.04 part of stannous octoate, 60 parts of liquefied mdi, 80 DEG C are reacted 2 hours, are cooled to 30 DEG C,
KH540 is added, is reacted 1 hour, obtain base polyurethane prepolymer for use as.
Comparative example 2
100 parts of poly (propylene carbonate) dihydroxylic alcohols are weighed, in adding the glass reaction kettle with vacuum extractor, 100 DEG C are taken out true
Sky dehydration 2 hours, 0.01 part of phosphoric acid of addition, 0.01 part of stannous octoate, 39 parts of liquefied mdi, 80 DEG C are reacted 2 hours, obtain poly- ammonia
Ester performed polymer.
Comparative example 3
100 parts of poly- ethanedioic acid butanediol ester dihydroxylic alcohols (molecular weight is 2000) are weighed, the glass with vacuum extractor is added
In reactor, 100 DEG C of evacuation are dehydrated 2 hours, add 0.01 part of phosphoric acid, 0.01 part of stannous octoate, 39 parts, 80 DEG C of liquefied mdi
Reaction 2 hours, obtains base polyurethane prepolymer for use as.
Embodiment 7
The product that embodiment 1-6 and comparative example 1-3 are obtained carries out performance survey according to corresponding national standard method respectively
Examination, specific test result as shown in table 1, as shown in the result of table 1, protect by comprehensive shear strength, blister formation, water absorption rate and intensity
The performance of each side such as holdup, the base polyurethane prepolymer for use as that embodiment 1 to embodiment 6 is obtained is better than comparative example 1-3.
Table 1
* base polyurethane prepolymer for use as is made into thin film, under room temperature 24h is soaked, test to obtain water absorption rate
Base polyurethane prepolymer for use as is made thin film by #, is placed in that to determine its after soak at room temperature 24h in 10% sodium hydrate aqueous solution strong
Degree, strength retention is the ratio that intensity and the front intensity of immersion are measured after immersion.
Claims (10)
1. a kind of Environment-friendlypolyurethane polyurethane prepolymer, it prepares raw material includes：Poly (propylene carbonate) polyhydric alcohol, isocyanates, have
Machine silane, polymerization inhibitor and catalyst.
2. Environment-friendlypolyurethane polyurethane prepolymer according to claim 1, it is characterised in that by weight, the poly- carbonic acid
100 parts of sub- propyl ester polyhydric alcohol, 30~75 parts of isocyanates, 0.5~20 part of organosilan, 0.01~1 part of polymerization inhibitor and catalyst
0.01~2 part.
3. Environment-friendlypolyurethane polyurethane prepolymer according to claim 1, it is characterised in that the poly (propylene carbonate) polyhydric alcohol
Molecular weight be 1000-8000, hydroxy functionality is 2-6, and the mole fraction of intramolecular carbonate group is 0.25-0.45.
4. Environment-friendlypolyurethane polyurethane prepolymer according to claim 3, it is characterised in that the poly (propylene carbonate) polyhydric alcohol
Molecular weight be 1500-4000, hydroxy functionality is 2-3, and the mole fraction of intramolecular carbonate group is 0.3-0.4.
5. Environment-friendlypolyurethane polyurethane prepolymer according to claim 1, it is characterised in that the isocyanates are selected from diphenyl
In methane diisocyanate, carbodiimide modified diphenylmethane diisocyanate and poly methylene poly phenyl poly isocyanate
One or more.
6. Environment-friendlypolyurethane polyurethane prepolymer according to claim 1, it is characterised in that the organosilan is selected from γ-ammonia
Propyl-triethoxysilicane, γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxy diethoxy silane, γ-aminopropyl first
One or more of base dimethoxysilane and N- phenyl-gamma-aminopropyl-triethoxy-silane.
7. Environment-friendlypolyurethane polyurethane prepolymer according to claim 1, it is characterised in that the polymerization inhibitor is selected from phosphoric acid or benzene
Formyl chloride.
8. Environment-friendlypolyurethane polyurethane prepolymer according to claim 1, it is characterised in that the catalyst is selected from tin dilaurate
One or more in the zinc of dibutyl tin, stannous iso caprylate and isooctyl acid Asia.
9. the preparation method of the Environment-friendlypolyurethane polyurethane prepolymer described in claim 1 to 8 any one, it is characterised in that include：
A) will mix with isocyanates, polymerization inhibitor and catalyst after the polynary dehydration of alcohols of poly (propylene carbonate), reaction is reacted
Intermediate；
B) the reaction intermediate cooling is treated, adds organosilan, reaction to obtain the Environment-friendlypolyurethane polyurethane prepolymer.
10. method according to claim 9, it is characterised in that the temperature reacted described in step a) is 60~100 DEG C,
Time is 1~5h；
Cooling described in step b) is to be cooled to 10~60 DEG C；
The temperature reacted described in step b) is 10~60 DEG C, and the time is 0.5~2h.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108997554A (en) * | 2018-06-19 | 2018-12-14 | 广州康狄夫环保科技有限公司 | Organic silicon modified polyurethane lotion, coating and its preparation method and application |
| CN109535374A (en) * | 2018-11-28 | 2019-03-29 | 厦门誉匠复合材料有限公司 | A kind of polyurethane elastomer and preparation method thereof |
| CN109575870A (en) * | 2018-11-14 | 2019-04-05 | 华南理工大学 | A kind of polyurethane sealant and preparation method thereof of modified siloxane sealing end |
| CN110283326A (en) * | 2018-12-12 | 2019-09-27 | 杭州师范大学 | A kind of degradable modification poly (propylene carbonate) and preparation method thereof |
| CN113337197A (en) * | 2021-06-21 | 2021-09-03 | 邹微丽 | Sealing rubber primer coating liquid and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432793A (en) * | 2011-11-25 | 2012-05-02 | 广州杰锐体育设施有限公司 | Environment-friendly polyurethane prepolymer and synthesis method thereof |
-
2017
- 2017-01-17 CN CN201710035648.6A patent/CN106674467A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432793A (en) * | 2011-11-25 | 2012-05-02 | 广州杰锐体育设施有限公司 | Environment-friendly polyurethane prepolymer and synthesis method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 夏磊等: "有机硅改性聚碳酸亚丙酯", 《高分子材料科学与工程》 * |
| 陈伟彬等: "聚碳酸亚丙酯聚氨酯弹性体的合成与性能", 《高分子材料科学与工程》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108997554A (en) * | 2018-06-19 | 2018-12-14 | 广州康狄夫环保科技有限公司 | Organic silicon modified polyurethane lotion, coating and its preparation method and application |
| CN109575870A (en) * | 2018-11-14 | 2019-04-05 | 华南理工大学 | A kind of polyurethane sealant and preparation method thereof of modified siloxane sealing end |
| CN109535374A (en) * | 2018-11-28 | 2019-03-29 | 厦门誉匠复合材料有限公司 | A kind of polyurethane elastomer and preparation method thereof |
| CN109535374B (en) * | 2018-11-28 | 2021-05-11 | 厦门誉匠复合材料有限公司 | Polyurethane elastomer and preparation method thereof |
| CN110283326A (en) * | 2018-12-12 | 2019-09-27 | 杭州师范大学 | A kind of degradable modification poly (propylene carbonate) and preparation method thereof |
| CN113337197A (en) * | 2021-06-21 | 2021-09-03 | 邹微丽 | Sealing rubber primer coating liquid and preparation method thereof |
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Application publication date: 20170517 |