CN106496506B - Polyurethane elastomer transparent gross rubber for agricultural automobile engine shock bracket and preparation method thereof - Google Patents
Polyurethane elastomer transparent gross rubber for agricultural automobile engine shock bracket and preparation method thereof Download PDFInfo
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- CN106496506B CN106496506B CN201610962908.XA CN201610962908A CN106496506B CN 106496506 B CN106496506 B CN 106496506B CN 201610962908 A CN201610962908 A CN 201610962908A CN 106496506 B CN106496506 B CN 106496506B
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- performed polymer
- polyurethane elastomer
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- curing agent
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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
-
- 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
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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
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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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 polyurethane elastomer fields, and in particular to a kind of for polyurethane elastomer transparent gross rubber of agricultural automobile engine shock bracket and preparation method thereof, it is characterised in that the parts by weight of each raw material are：100 parts of performed polymer；7.6 9.8 parts of curing agent；Catalyst for pre-polymerization body weight 0.2% 1%；The weight percent of each raw material is in the performed polymer：Polyester polyol 80 90%；Aromatic isocyanate 20 10%.Preparation method, it is characterised in that step is as follows：1) polyester polyol with aromatic isocyanate is reacted, obtains performed polymer；2) it by performed polymer and curing agent and catalyst after mixing, is poured into preheated mold, polyurethane elastomer transparent adhesive tape is made through vulcanizer.The present invention has the following advantages：The sizing material transparency is good；Oil resistivity is excellent；Wearability is outstanding；Elasticity is good；Shockproof shock-absorbing performance protrudes；Intensity is high；Present invention process advantages of simple, is easy to industrialized production.
Description
Technical field
The invention belongs to polyurethane elastomer fields, and in particular to a kind of for the poly- of agricultural automobile engine shock bracket
Urethane elastomer transparent gross rubber and preparation method thereof.
Background technology
Polyurethane elastomer is a kind of block copolymer being made of soft segment and hard section, is one in polyurethane synthetic material
Kind.Since there is its structure soft, hard two chains to break, MOLECULE DESIGN can be carried out to it and assign that elastic properties of materials is good, intensity is high, resistance to
The excellent properties such as mill, oil resistant, shockproof shock-absorbing.With the development of auto industry so that polyurethane material is more and more in automobile
Industry has obtained a large amount of application.
Traditional agricultural automobile engine shock bracket (foot glue) be rubber, with service life it is short, processing week
The defects of phase length, high energy consumption, rubber process pollution are greatly, oil-resistant effect is bad.
Invention content
Present invention aim to address traditional agricultural automobile engine shock bracket service life is short, the process-cycle is long,
High energy consumption, the defects of rubber process pollution is big, oil-resistant effect is bad, provide a kind of for agricultural automobile engine shock bracket
The preparation method of polyurethane elastomer transparent gross rubber, uses polyurethane elastomer transparent gross rubber to make shock bracket, and product is resistance to
Oil, elasticity is good, intensity is high, damping capaicty is strong, the process-cycle is short；Preparation method, it is simple for process reasonable, it is easy to industrial metaplasia
Production.
The present invention is achieved by the following technical solution：
That is a kind of polyurethane elastomer transparent gross rubber for agricultural automobile engine shock bracket, it is characterised in that each original
The parts by weight of material are：
100 parts of performed polymer；
7.6-9.8 parts of curing agent；
Catalyst is the 0.2%-1% of pre-polymerization body weight；
The weight percent of each raw material is in the performed polymer：
Polyester polyol 80-90%；
Aromatic isocyanate 20-10%.
The polyester polyol of the present invention is polyester 218, polyester 1024, one kind in polyester POL75AT or arbitrary a variety of
Combination.
The aromatic isocyanate of the present invention is one kind in T-100, T-80, MDI-50 or arbitrary a variety of combination.
Arbitrary combination of the curing agent of the present invention for one or both of E-300, MOCA.
The catalyst of the present invention is oleic acid, adipic acid, one kind in organotin or arbitrary a variety of combination.
A kind of polyurethane elastomer transparent adhesive tape according to claim 1 for agricultural automobile engine shock bracket
The preparation method of material, it is characterised in that step is as follows：
1) performed polymer is synthetically prepared
Polyester polyol and aromatic isocyanate are reacted reacting in kettle device, by being mixed from belt stirrer, instead
It is 105 DEG C -115 DEG C, reaction time 3h to answer temperature, obtains the performed polymer that NCO% contents are 3.2-3.3%, individually packs；
2) preparation of transparent gross rubber
By good performed polymer made above and curing agent and catalyst by proportion after mixing, it is poured into preheated mould
In tool, after vulcanizer pressing mold heat cure, the polyurethane elastomer transparent adhesive tape for being made that hardness is 65A-75A, pre-polymerization body temperature are demoulded
It is 100 DEG C to spend, and curing agent temperature is 120 DEG C, and catalyst is room temperature, and mold temperature is 140 DEG C, and vulcanizer temperature is 150 DEG C, pressure
The mould time is 10 minutes.
The present invention has the following advantages
(1) the sizing material transparency made is good；
(2) oil resistivity is excellent, hardly weathers in fuel oil and machinery oil, and better than the oil resistivity of rubber is more；
(3) wearability is outstanding, and Akron abrasion value is in 0.03-0.1MM3/ M is 3-8 times better than rubber abrasive-resistance；
(4) elasticity is good, especially low temperature performance excellent, and brittleness temperature is very low, is -70 DEG C~-50 DEG C, also has under low temperature
There is good elasticity；
(5) shockproof shock-absorbing performance protrudes, since polyurethane elastomer shows significantly to lag to the effect of alternate stress
Phenomenon, so the part energy consumption of external force effect and the interior friction of elastomer molecules, are converted into thermal energy, are made of the sizing material
The shockproof damping capaicty of agricultural automobile engine support it is strong；
(6) intensity is high；
(7) preparation method provided by the invention, it is simple for process reasonable, it is easy to industrialized production.
Specific embodiment
With reference to embodiment, the present invention will be further described
Material used in embodiment
Polyester 218, number-average molecular weight 2000 are purchased in market；Polyester 1024, number-average molecular weight 1000 are purchased in market；Polyester POL75AT,
Number-average molecular weight 1500, it is purchased in market；T-100, it is purchased in market；T-80, it is purchased in market；MDI-50, it is purchased in market；MOCA is purchased in market, E-300, purchased in market, oil
Acid, purchased in market, adipic acid, purchased in market, organotin are purchased in market.
Embodiment 1
Polyester polyol selects polyester 218, number-average molecular weight 2000, and aromatic isocyanate is the group of T-100 and T-80
It closes, curing agent MOCA, catalyst is oleic acid.
1) performed polymer is synthetically prepared
3H is reacted at 110 DEG C ± 5 with T-100, T-80 14.3% with polyester 218 85.7%, obtaining NCO% contents is
3.2% performed polymer.
2) preparation of transparent gross rubber
It is poured into after mixing with 9 parts of MOCA and oleic acid (the 1% of pre-polymerization body weight) with 100 parts of more than performed polymer pre-
In the good mold of heat, after vulcanizer pressing mold heat cure, demoulding obtains the polyurethane elastomer transparent adhesive tape that elasticity is good, intensity is high.
Pre-polymerization temperature is 100 DEG C, and curing agent temperature is 120 DEG C, and catalyst is room temperature, and mold temperature is 140 DEG C, and vulcanizer temperature is
150 DEG C, the pressing mold time is 10 minutes.
Embodiment 2
Polyester polyol selects polyester 1024, number-average molecular weight 1000, polyester POL75AT, number-average molecular weight 1500, fragrance
Race's isocyanates is the combination of T-100 and MDI-50, and curing agent E300, catalyst is organotin.
1) performed polymer is synthetically prepared
With polyester 1024, number-average molecular weight 1000:25%, polyester POL75AT, number-average molecular weight 1500,57% and T-
100th, MDI-50 17.8% reacts 3H at 110 DEG C ± 5, obtains the performed polymer that NCO% contents are 3.3%.
2) preparation of transparent gross rubber
With 100 parts of more than performed polymer, 7.6 parts of E300, organotin (0.2% of pre-polymerization body weight) is uniformly mixed after-pouring
Into preheated mold, after vulcanizer pressing mold heat cure, it is elastic good that demoulding obtains, and the high polyurethane elastomer of intensity is transparent
Glue.Pre-polymerization temperature is 100 DEG C, and curing agent temperature is 120 DEG C, and catalyst is room temperature, and mold temperature is 140 DEG C, vulcanizer temperature
It is 150 DEG C to spend, and the pressing mold time is 10 minutes.
Embodiment 3
Polyester polyol selects polyester POL75AT, number-average molecular weight 1500, aromatic isocyanate T-100, curing agent
For MOCA, catalyst is adipic acid.
1) performed polymer is synthetically prepared
With polyester POL75AT, number-average molecular weight 1,500 83.5% reacts 3H with T-100 16.5% at 110 DEG C ± 5, obtains
To the performed polymer that NCO% contents are 3.3%.
2) preparation of transparent gross rubber
With 100 parts of more than performed polymer, 9.8 parts of MOCA, adipic acid (the 0.3% of pre-polymerization body weight) is poured into a mould after mixing
Into preheated mold, after vulcanizer pressing mold heat cure, it is transparent that demoulding obtains the polyurethane elastomer good, that intensity is high of elasticity
Glue.Pre-polymerization temperature is 100 DEG C, and curing agent temperature is 120 DEG C, and catalyst is room temperature, and mold temperature is 140 DEG C, vulcanizer temperature
It is 150 DEG C to spend, and the pressing mold time is 10 minutes.
The performance test of polyurethane elastomer transparent gross rubber prepared by embodiment 1-3 is as follows：
Claims (1)
1. a kind of preparation method of polyurethane elastomer transparent gross rubber for agricultural automobile engine shock bracket, feature exist
It is as follows in step：
1) performed polymer is synthetically prepared
Polyester polyol and aromatic isocyanate are reacted reacting in kettle device, by being mixed from belt stirrer, reaction temperature
It is 105 DEG C -115 DEG C, reaction time 3h to spend, and obtains the performed polymer that NCO% contents are 3.2-3.3%, individually packs；Performed polymer
In the weight percent of each raw material be：Polyester polyol 80-90%, aromatic isocyanate 20-10%；Polyester polyol is poly-
Ester 218, polyester 1024, one kind in polyester POL75AT or arbitrary a variety of combination；Aromatic isocyanate is T-80, MDI-
One or both of 50 combination；
2) preparation of transparent gross rubber
By good performed polymer made above and curing agent and catalyst by proportion after mixing, it is poured into preheated mold
In, after vulcanizer pressing mold heat cure, demould the polyurethane elastomer transparent adhesive tape for being made that hardness is 70A-72A, part of performed polymer
Number is 100 parts, and the number of curing agent is 7.6-9.8 parts, and catalyst is 0.2%-1%, the curing agent MOCA of pre-polymerization body weight,
Catalyst is oleic acid, adipic acid, one kind in organotin or arbitrary a variety of combination, pre-polymerization temperature are 100 DEG C, curing agent temperature
It is 120 DEG C to spend, and catalyst is room temperature, and mold temperature is 140 DEG C, and vulcanizer temperature is 150 DEG C, and the pressing mold time is 10 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610962908.XA CN106496506B (en) | 2016-11-04 | 2016-11-04 | Polyurethane elastomer transparent gross rubber for agricultural automobile engine shock bracket and preparation method thereof |
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| CN201610962908.XA CN106496506B (en) | 2016-11-04 | 2016-11-04 | Polyurethane elastomer transparent gross rubber for agricultural automobile engine shock bracket and preparation method thereof |
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| CN106496506A CN106496506A (en) | 2017-03-15 |
| CN106496506B true CN106496506B (en) | 2018-07-10 |
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| CN110240686A (en) * | 2019-04-29 | 2019-09-17 | 山西科灜科技有限公司 | A kind of high-performance high-hard, transparent polyurethane elastomer and preparation method thereof |
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| CN101575492B (en) * | 2008-05-09 | 2012-08-08 | 上海合达聚合物科技有限公司 | Bi-component elastomer polyurethane adhesive as well as manufacture method and application thereof |
| CN102161744B (en) * | 2010-12-15 | 2013-01-30 | 山西省化工研究所 | Preparation method of high-storage-stability polyester-type polyurethane prepolymer |
| CN102942674B (en) * | 2012-11-26 | 2014-05-07 | 山东一诺威聚氨酯股份有限公司 | Three-component polyurethane elastomer composition |
| CN103012723B (en) * | 2012-12-29 | 2014-12-10 | 山东一诺威聚氨酯股份有限公司 | Preparation method of polyurethane elastomer composition for industrial synchronous belt |
| CN104530384B (en) * | 2015-01-09 | 2017-06-06 | 黎明化工研究设计院有限责任公司 | A kind of sieve plate polyester urethane resin composition and preparation method thereof and application method |
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Denomination of invention: Transparent polyurethane elastomer compound for damping bracket of agricultural vehicle engine and its preparation method Effective date of registration: 20200924 Granted publication date: 20180710 Pledgee: Zibo Xinrun financing Company limited by guarantee Pledgor: ZIBO HUATIAN RUBBER & PLASTICS SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2020980006400 |
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Date of cancellation: 20211104 Granted publication date: 20180710 Pledgee: Zibo Xinrun financing Company limited by guarantee Pledgor: ZIBO HUATIAN RUBBER & PLASTICS SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2020980006400 |
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Effective date of registration: 20230309 Address after: 276000 room 1, building 1, No. 1, Kaiyuan Road, economic development zone, Tancheng County, Linyi City, Shandong Province; Room 1, building 2; Room 1, building 3 Patentee after: Shandong Yipeng New Material Technology Co.,Ltd. Address before: 255000 Goli Avenue, Guoli Town, Huantai County, Zibo City, Shandong Province Patentee before: ZIBO HUATIAN RUBBER & PLASTICS SCIENCE AND TECHNOLOGY Co.,Ltd. |