CN102181038A - Preparation method of polyurethane stock solution for automobile steering wheel - Google Patents

Preparation method of polyurethane stock solution for automobile steering wheel Download PDF

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Publication number
CN102181038A
CN102181038A CN 201110086028 CN201110086028A CN102181038A CN 102181038 A CN102181038 A CN 102181038A CN 201110086028 CN201110086028 CN 201110086028 CN 201110086028 A CN201110086028 A CN 201110086028A CN 102181038 A CN102181038 A CN 102181038A
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Prior art keywords
stock solution
preparation
polyester polyol
polyurethane stock
vehicle steering
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CN 201110086028
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CN102181038B (en
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蔡福泉
田志胜
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Wenzhou Dongye Electronic Technology Co ltd
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WENZHOU DENGDA CHEMICAL CO Ltd
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Abstract

The invention discloses a preparation method of a polyurethane stock solution for an automobile steering wheel. The technical scheme is as follows: the preparation method comprises the following steps: (1) preparing silicone oil modified polyester polyol; and (2) preparing the polyurethane stock solution for an automobile steering wheel. The hydroxy silicone oil modified polyester polyol disclosed by the invention is prepared by adding silicon-oxygen bond into the molecule of the polyester polyol, so that the polyester polyol has certain hydrophobicity. The polyurethane slow-rebound soft foam plastic prepared from the polyester polyol has low polarity, does not adhere to hands, and feels smooth.

Description

A kind of vehicle steering preparation method of polyurethane stock solution
Technical field
The present invention relates to the synthetic field of chemical industry, be specifically related to polyurethane stock solution, be meant a kind of vehicle steering new polyurethane material of polyurethane stock solution and preparation method thereof especially.
Background technology
Along with the development of automobile industry, automobile has entered the ordinary people family.The city resident can drive to go to work, travel or finish some public affair at present.The officer who drives holds bearing circle, can be to the place that you think.According to incompletely statistics, have the driver of car to drive at least two hours average every day, hand will contact bearing circle two hours.Driving if hold a strong bearing circle of comfortableness, is a kind of enjoyment.The comfortableness of bearing circle thoughts also is a standard of automobile class simultaneously.Comfortableness when bearing circle is held in raising so people also try every possible means, thus various types of vehicle steering comes out with sheath.Fabric bearing circle sheath, leather sheath, synthetic leather sheath that various materials are arranged in the market.The sheath higher gears of leather wherein.The sheath of synthetic leather makes that owing to airtight the comfortableness of sheath is relatively poor.So the vehicle steering sheath of the synthetic leather that the exploitation comfortableness is strong becomes the very interested problem of urethane resin production.
In fact since the sixties in last century, the flexible PU foam sheath has been housed all on nearly all vehicle steering.But this sheath is general flexible PU foam, and is airtight and have a high resilience, just gives pressure of hand constantly, so hand is felt very ill.Occur a kind of slow rebound polyurethane stoste on the markets in 2008, be applied on the vehicle steering sheath, the quality of vehicle steering sheath is obviously improved.But we find that this sheath has the polar surface, very easily adsorb dust and be difficult to clean.When every day hand all contact sheath, have sweat stain on the sheath, more breed bacteria.Have automatic cleaning action the slow rebound polyurethane stoste that can be used for the vehicle steering sheath do not appear in the newspapers.
Summary of the invention
The objective of the invention is in order to overcome the shortcoming and defect that prior art exists, and provide have germicidal action, a kind of vehicle steering of self-cleaning function such as decomposing protein is with the preparation method of polyurethane stock solution.
For achieving the above object, technical scheme of the present invention is to comprise following operation:
(1) silicon oil modified polyester polyol prepares:
Butyleneglycol 100 parts, hydroxy silicon oil is added in the reactor, behind the 75-85 ℃ of vacuum hydro-extraction 2-2.5h, the adipic acid that adds 50 parts, be warming up to 150-180 ℃, temperature remains unchanged, water constantly is excluded from reactive system, after not having water to get rid of from system, the temperature of reactive system continues to raise, and temperature rises to 230-250 ℃, insulation 1-2h, entire operation is carried out under protective atmosphere, carries out vacuum pumping, keeps vacuumizing state and getting its sample and analyze, determine hydroxyl value and acid number, if the acid number of sample does not reach 0.3-0.5mgKOH/g, hydroxyl value does not reach 60-70 mgKOH/g, continues to vacuumize, reach above-mentioned requirements up to hydroxyl value and acid number, temperature in the kettle remains on 220~230 ℃ during vacuumizing;
(2) the vehicle steering preparation of polyurethane stock solution:
Put A material and B material by following set of dispense, acquisition vehicle steering polyurethane stock solution, in mass fraction:
The A material:
Silicon oil modified polyester polyol 30-60
Slow resilience polyethers 20-30
Suds-stabilizing agent 0.4-1.5
Amino catalyzer 2.0-4.5
Tin-based catalyst 0.5-1.2
Nano TiO 2 4-8
Water 0.5-2.5
The B material:
Liquefied mdi 70-80
PAPI 30-40。
Further be provided with is that the control condition that described step (1) vacuumizes is carried out vacuum pumping for opening vacuum pump with the condition of 0.02MPa 1h, 0.04MPa 1.5h, 0.06MPa 1.5h, 0.08 MPa 1.5h, 0.099 Mpa 4h successively.
Further being provided with is that described protective atmosphere is a nitrogen atmosphere.
Advantage of the present invention is
(a) the present invention improves a kind of hydroxyl silicon oil modified polyester polyol
Hydroxyl silicon oil modified polyester polyol provided by the invention is a kind ofly by chemical reaction method siloxane bond to be added in the molecule of polyester polyol, makes polyester polyol have certain hydrophobicity.When using this polyester polyol to be prepared into the soft bubble plastics of polyurethane slow rebound, the polarity of flexible PU foam is less, does not touch with one's hand, and feel is smooth.
(b) the present invention is by chemical additive process, with nano-TiO 2Add in the flexible PU foam.
Nano-TiO 2Be a kind of inorganic oxide, can strengthen the mechanical property of polyurethane material, simultaneously nano-TiO 2Has germicidal action.The what is more important nano-TiO 2Be a kind of optical catalysts, under the irradiation of UV-light, can decomposing protein etc. biomass, so can remove microorganism on the polyurethane foam automatically.
(c) the invention provides the preparation method of a kind of preparation vehicle steering sheath with polyurethane stock solution.
Below in conjunction with embodiment the present invention is done further introduction.
Embodiment
Below by embodiment the present invention is carried out concrete description; only be used for the present invention is further specified; can not be interpreted as the qualification to protection domain of the present invention, the technician in this field can make some nonessential improvement and adjustment to the present invention according to the content of foregoing invention.
Embodiment 1
At 0.5m 3Reactor in add the butyleneglycol of 50kg, 10kg hydroxy silicon oil, sealed reactor.Add thermal material to 80 ℃, begin to vacuumize to system, vacuum tightness 0.01MPa stops behind the 2h vacuumizing.Open reactor, add the 300kg adipic acid.Feed nitrogen protection to reactor, and heat up, temperature rises to 110 ℃ has the water of a little to get rid of reactor, and temperature continues to rise, and up to 150 ℃, temperature remains unchanged, and gets rid of fully up to the water of reactive system.Temperature continues to heat up, and keeps temperature of reaction under 220 ℃, and 4h is carried out in reaction, and the acid number of assaying reaction sample is when acid number reaches 20 mgKOH/g.Beginning progressively vacuumizes, 0.02MPa 1h, 0.04MPa 1.5h, 0.06MPa 1.5h, 0.08 MPa 1.5h, begin pumping high vacuum (0.099 Mpa then, 4h), get its sample and analyze, determine hydroxyl value and acid number, if the hydroxyl value of sample and acid number do not reach requirement, continue to vacuumize, reach requirement (acid number 0.3-0.5mgKOH/g, hydroxyl value reaches 60-70 mgKOH/g) up to hydroxyl value and acid number.Temperature in the kettle remains on 230 ℃ during this period.Can not stop vacuum pump during sampling analysis during noting vacuumizing, change to prevent product quality.After treating that sample reaches the hydroxyl value and acid number that needs, discharging promptly obtains silicon oil modified polyester polyol.
Get the silicon oil modified polyester polyol 30kg of above-mentioned preparation, slow resilience polyethers 20kg, suds-stabilizing agent 0.4 kg, amino catalyzer 2.0 kg, tin-based catalyst 0.5 kg, nano-TiO 24 kg, water 0.5 kg form the A material; Liquefied mdi 70kg, PAPI 30kg form the B material.
MDI of the present invention is a diphenylmethanediisocyanate, and PAPI is a polymethylene multi-phenenyl isocyanate, by those skilled in the art are known.
Embodiment 2
At 0.5m 3Reactor in add the butyleneglycol of 50kg, 10kg hydroxy silicon oil, sealed reactor.Add thermal material to 100 ℃, begin to vacuumize to system, vacuum tightness 0.01MPa stops behind the 2h vacuumizing.Open reactor, add the 300kg adipic acid.Feed nitrogen protection to reactor, and heat up, temperature rises to 110 ℃ has the water of a little to get rid of reactor, and temperature continues to rise, and up to 160 ℃, temperature remains unchanged, and gets rid of fully up to the water of reactive system.Temperature continues to heat up, and keeps temperature of reaction under 230 ℃, and 4h is carried out in reaction, and the acid number of assaying reaction sample is when acid number reaches 30 mgKOH/g.Beginning progressively vacuumizes, 0.02MPa 1h, 0.04MPa 1.5h, 0.06MPa 1.5h, 0.08 MPa 1.5h, begin pumping high vacuum (0.099 Mpa then, 4h), get its sample and analyze, determine hydroxyl value and acid number, if the hydroxyl value of sample and acid number do not reach requirement, continue to vacuumize, reach requirement (acid number 0.3-0.5mgKOH/g, hydroxyl value reaches 60-70 mgKOH/g) up to hydroxyl value and acid number.Temperature in the kettle remains on 220~230 ℃ during this period.Can not stop vacuum pump during sampling analysis during noting vacuumizing, change to prevent product quality.After treating that sample reaches the hydroxyl value and acid number that needs, discharging promptly obtains silicon oil modified polyester polyol.
Embodiment 3
At 0.5m 3Reactor in add the butyleneglycol of 50kg, 10kg hydroxy silicon oil, sealed reactor.Add thermal material to 90 ℃, begin to vacuumize to system, vacuum tightness 0.01MPa stops behind the 2h vacuumizing.Open reactor, add the 300kg adipic acid.Feed nitrogen protection to reactor, and heat up, temperature rises to 110 ℃ has the water of a little to get rid of reactor, and temperature continues to rise, and up to 155 ℃, temperature remains unchanged, and gets rid of fully up to the water of reactive system.Temperature continues to heat up, and keeps temperature of reaction under 225 ℃, and 4h is carried out in reaction, and the acid number of assaying reaction sample is when acid number reaches 25 mgKOH/g.Beginning progressively vacuumizes, 0.02MPa 1h, 0.04MPa 1.5h, 0.06MPa 1.5h, 0.08 MPa 1.5h, begin pumping high vacuum (0.099 Mpa then, 4h), get its sample and analyze, determine hydroxyl value and acid number, if the hydroxyl value of sample and acid number do not reach requirement, continue to vacuumize, reach requirement (acid number 0.3-0.5mgKOH/g, hydroxyl value reaches 60-70 mgKOH/g) up to hydroxyl value and acid number.Temperature in the kettle remains on 230 ℃ during this period.Can not stop vacuum pump during sampling analysis during noting vacuumizing, change to prevent product quality.After treating that sample reaches the hydroxyl value and acid number that needs, discharging promptly obtains silicon oil modified polyester polyol.
Vehicle steering of the present invention is used to make automobile steering wheel cover with polyurethane stock solution, earlier the component weighing in each component in the A material and the B material is dropped into batch mixing reactor separately, start stirring, after two batching stills stir 0.5h respectively, A material and B material are heated to 45 ℃ respectively, A is expected, the B material is poured into rapidly in the mould that has been heated to required temperature, build and cover tight mould lid, cross 10~15min, open mould lid, take out sample, put into temperature and be 65 ℃ baking oven, go out about 5 minutes, cooling off its density of mensuration of carrying out density in about 5 minutes is 35kg/m 3

Claims (3)

1. a vehicle steering is characterized in that comprising following operation with the preparation method of polyurethane stock solution:
(1) silicon oil modified polyester polyol prepares:
Butyleneglycol 100 parts, hydroxy silicon oil is added in the reactor, behind the 70-90 ℃ of vacuum hydro-extraction 2-2.5h, the adipic acid that adds 50 parts, be warming up to 150-160 ℃, temperature remains unchanged, water constantly is excluded from reactive system, after not having water to get rid of from system, the temperature of reactive system continues to raise, and temperature rises to 230-240 ℃, insulation 1-2h, entire operation is carried out under protective atmosphere, carries out vacuum pumping, keeps vacuumizing state and getting its sample and analyze, determine hydroxyl value and acid number, if the acid number of sample does not reach 0.3-0.5mgKOH/g, hydroxyl value does not reach 60-70 mgKOH/g, continues to vacuumize, reach above-mentioned requirements up to hydroxyl value and acid number, temperature in the kettle remains on 220~230 ℃ during vacuumizing;
The vehicle steering preparation of polyurethane stock solution:
Put A material and B material by following set of dispense, acquisition vehicle steering polyurethane stock solution, in mass fraction:
The A material:
Silicon oil modified polyester polyol 30-60
Slow resilience polyethers 20-30
Suds-stabilizing agent 0.4-1.5
Amino catalyzer 2.0-4.5
Tin-based catalyst 0.5-1.2
Nano TiO 2 4-8
Water 0.5-2.5
The B material:
Liquefied mdi 60-80
PAPI 25-35。
2. a kind of vehicle steering according to claim 1 preparation method of polyurethane stock solution is characterized in that: the control condition that described step (1) vacuumizes is carried out vacuum pumping for opening vacuum pump with the condition of 0.02MPa 1h, 0.04MPa 1.5h, 0.06MPa 1.5h, 0.08 MPa 1.5h, 0.099 Mpa 4h successively.
3. a kind of vehicle steering according to claim 1 preparation method of polyurethane stock solution, it is characterized in that: described protective atmosphere is a nitrogen atmosphere.
CN 201110086028 2011-04-07 2011-04-07 Preparation method of polyurethane stock solution for automobile steering wheel Active CN102181038B (en)

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Application Number Priority Date Filing Date Title
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CN102181038B CN102181038B (en) 2013-02-20

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103374111A (en) * 2012-04-27 2013-10-30 温州市登达化工有限公司 Preparation method of slow-resilience polyurethane flexible foam stock solution for automotive steering wheel
CN105131242A (en) * 2015-08-21 2015-12-09 安徽天堂唯高塑业科技有限公司 Non-sweat-absorbing sheath material of protective layer of steering wheel and preparation method for sheath material
CN109553741A (en) * 2018-12-06 2019-04-02 上海应用技术大学 A kind of preparation method of low-cost polyurethane steering wheel
CN109553751A (en) * 2018-12-06 2019-04-02 上海应用技术大学 A kind of preparation method of polyurethane steering wheel
CN109575231A (en) * 2018-12-06 2019-04-05 上海应用技术大学 A kind of preparation method of low VOC polyurethane automobile steering wheel
CN110358065A (en) * 2019-08-05 2019-10-22 美瑞新材料股份有限公司 A kind of polysiloxanes -ester polyalcohol, preparation method and application
CN115260439A (en) * 2022-08-11 2022-11-01 山东一诺威新材料有限公司 Super-hydrophobic polyurethane material for automobile paint surface protective film and preparation method thereof

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* Cited by examiner, † Cited by third party
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JPH0525239A (en) * 1991-07-23 1993-02-02 Toagosei Chem Ind Co Ltd Polyurethane emulsion
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US20050221012A1 (en) * 2004-03-01 2005-10-06 Horst Muehlfeld Method for manufacturing a lightfast synthetic leather and products manufactured according to the method
CN101328247A (en) * 2008-07-29 2008-12-24 中国科学技术大学 Preparation of siloxane modified polyurethane-acrylic ester composite emulsion
KR20090002603A (en) * 2007-07-02 2009-01-09 주식회사 엘지화학 Integral skin polyurethane foam composition, integral skin polyurethane foam prepared by using the same, and method for testing property of integral skin polyurethane foam
CN101348554A (en) * 2008-08-08 2009-01-21 山东东大一诺威聚氨酯有限公司 Organosilicon modified aqueous polyurethane resin and preparation thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03223323A (en) * 1990-01-30 1991-10-02 Sanyo Chem Ind Ltd Polyurethane resin composition and its production
JPH0525239A (en) * 1991-07-23 1993-02-02 Toagosei Chem Ind Co Ltd Polyurethane emulsion
JP2005076157A (en) * 2003-09-02 2005-03-24 Dainichiseika Color & Chem Mfg Co Ltd Synthetic imitation leather and method for producing the same
US20050221012A1 (en) * 2004-03-01 2005-10-06 Horst Muehlfeld Method for manufacturing a lightfast synthetic leather and products manufactured according to the method
KR20090002603A (en) * 2007-07-02 2009-01-09 주식회사 엘지화학 Integral skin polyurethane foam composition, integral skin polyurethane foam prepared by using the same, and method for testing property of integral skin polyurethane foam
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CN101348554A (en) * 2008-08-08 2009-01-21 山东东大一诺威聚氨酯有限公司 Organosilicon modified aqueous polyurethane resin and preparation thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103374111A (en) * 2012-04-27 2013-10-30 温州市登达化工有限公司 Preparation method of slow-resilience polyurethane flexible foam stock solution for automotive steering wheel
CN103374111B (en) * 2012-04-27 2015-02-11 温州市登达化工有限公司 Preparation method of slow-resilience polyurethane flexible foam stock solution for automotive steering wheel
CN105131242A (en) * 2015-08-21 2015-12-09 安徽天堂唯高塑业科技有限公司 Non-sweat-absorbing sheath material of protective layer of steering wheel and preparation method for sheath material
CN109553741A (en) * 2018-12-06 2019-04-02 上海应用技术大学 A kind of preparation method of low-cost polyurethane steering wheel
CN109553751A (en) * 2018-12-06 2019-04-02 上海应用技术大学 A kind of preparation method of polyurethane steering wheel
CN109575231A (en) * 2018-12-06 2019-04-05 上海应用技术大学 A kind of preparation method of low VOC polyurethane automobile steering wheel
CN110358065A (en) * 2019-08-05 2019-10-22 美瑞新材料股份有限公司 A kind of polysiloxanes -ester polyalcohol, preparation method and application
CN110358065B (en) * 2019-08-05 2022-02-25 美瑞新材料股份有限公司 Polysiloxane-ester polyol, and preparation method and application thereof
CN115260439A (en) * 2022-08-11 2022-11-01 山东一诺威新材料有限公司 Super-hydrophobic polyurethane material for automobile paint surface protective film and preparation method thereof
CN115260439B (en) * 2022-08-11 2023-09-22 山东一诺威新材料有限公司 Super-hydrophobic polyurethane material for automobile paint protective film and preparation method thereof

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