CN105440243A - Polyurethane composition for automobile sunroof buffer pad, and preparation method of polyurethane composition - Google Patents
Polyurethane composition for automobile sunroof buffer pad, and preparation method of polyurethane composition Download PDFInfo
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- CN105440243A CN105440243A CN201511030557.0A CN201511030557A CN105440243A CN 105440243 A CN105440243 A CN 105440243A CN 201511030557 A CN201511030557 A CN 201511030557A CN 105440243 A CN105440243 A CN 105440243A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
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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
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
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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
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6552—Compounds of group C08G18/63
- C08G18/6558—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/657—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
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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
-
- 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
- C08G2350/00—Acoustic or vibration damping material
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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 relates to a polyurethane composition for an automobile sunroof buffer pad, and a preparation method of the polyurethane composition, and belongs to the technical field of polyurethane application. The polyurethane composition for the automobile sunroof buffer pad comprises a component A and a component B; the weight percentage of the component A to that of the component B is 100:(40-80); the component A comprises polyether polyol A, polymer polyol, a chain extender, a crosslinking agent, a foaming agent/foam stabilizer and a catalyst; the component B comprises polyether polyol A, isocyanate, an opening agent and a storage stabilizing agent. The automobile sunroof buffer pad made of the polyurethane composition has excellent shock absorption, sound prevention and noise reduction effects; meanwhile, the invention further provides the simple, easy, energy-saving and environment-friendly preparation method.
Description
Technical field
The present invention relates to a kind of polyurethane composition for vehicle dormer window cushion pad and preparation method thereof, belong to urethane applied technical field.
Background technology
Often use cushion pad miscellaneous when carrying out spacing to auto parts, and advancing of automobile skylight sun-shield is spacingly also realized by cushion pad, therefore cushion pad for bumper and absorbing shock performance and sound insulation and noise reduction performance requriements higher.The material of existing cushion pad generally also exists damping effect difference and the inapparent shortcoming of noise reduction.
Patent CN202593241U discloses a kind of vehicle dormer window cushion pad, and its improvement for vehicle dormer window bumper and absorbing shock performance is mainly from the design of outward appearance and shape.From the angle of engineering mechanics, certain bumper and absorbing shock performance can be played, but material used does not change in essence.
Summary of the invention
The object of this invention is to provide a kind of polyurethane composition for vehicle dormer window cushion pad, the vehicle dormer window cushion pad made by it has good damping and sound insulation and noise reduction effect; Invention also provides preparation method that is simple, energy-conserving and environment-protective.
Polyurethane composition for vehicle dormer window cushion pad of the present invention, is made up of first component and second component, and the weight percent of first and second component is 100:40-80, wherein:
(1) first component comprises the raw material of following weight percentage:
(2) second component comprises the raw material of following weight percentage:
Described polyether glycol A is take glycerine as initiator, carries out catalysis with phosphonitrile class catalyzer, and with the high reactivity polyoxytrimethylene trivalent alcohol of ethylene oxide-capped, its functionality is 3, and number-average molecular weight is 7500, and proportion of primary OH groups is higher than 90%.
Described polymer polyatomic alcohol, by polyethers based on vinyl polyether triol, obtains with vinylbenzene or acrylonitrile graft copolymer, its solid content >=30%.Be preferably POP36/28 (commercially available, Shandong Lanxing Dongda Chemical Co., Ltd), KGP545 (commercially available, Nanjing KUMHO GPRO Chemical Co., Ltd.).
Described chainextender is ethylene glycol (EG), glycol ether (DEG), 1,4-butyleneglycol (1,4-BG), one or more in 1,3-PD (1,3-PDO) or dipropylene glycol (DPG).
Described linking agent is alcamines linking agent, is preferably one or both in trolamine (TEA) or diethanolamine (DEOA).
Described whipping agent is water.
Described suds-stabilizing agent is polysiloxane-olefin oxide segmented copolymer, is preferably DC2525 (gas chemical company of the U.S., commercially available prod).
Catalyzer in described first component is tertiary amine catalyst, comprises expansion type catalyzer or gel-type catalyzer one or both.Wherein, tertiary amines expansion type catalyzer is preferably A-1 (commercially available), and tertiary amines gel-type catalyzer is preferably A-33 (commercially available).
Described isocyanic ester is pure MDI, one or more in Carbodiimide-Modified MDI, MDI-50 or polymeric MDI (being commonly called as thick MDI).
The Aethoxy Sklerol of described pore-creating agent to be hydroxyl value be 30-34mgKOH/g, is preferably SD-75 (Shanghai Dongda Chemical Co., Ltd., commercially available prod).
Described storage stabilizing agent is phosphoric acid or Benzoyl chloride.
The preparation method of the described polyurethane composition for vehicle dormer window cushion pad, comprises the following steps:
(1) first component is prepared: first polyether glycol A and polymer polyatomic alcohol are dropped in reactor and stir, then chainextender, linking agent, catalyzer, suds-stabilizing agent and whipping agent is added successively, at ambient temperature, rotating speed is 60-100 rev/min, stir 1-2 hour, sampling is tested, and meets processing parameter, send and be satisfied with foam, obtain first component;
(2) second component is prepared: will drop in reactor under polyether polyol with high activity and pore-creating agent normal temperature, stir and heat up, dewater under vacuum condition degassed, then cooling adds isocyanate reaction, when detection isocyanato content reaches set(ting)value, cooling, adds storage stabilizing agent, namely obtains second component;
(3) when using, first, second component mixed, injection molding, sealing rapidly evenly, die sinking after 2-10 minute, namely obtains the polyurethane composition for vehicle dormer window cushion pad.
In step (2), stir and be warming up to 90-100 DEG C; Dewater degassed 2-3 hour; When being cooled to 10-40 DEG C, add isocyanic ester at 80-85 DEG C of reaction 2-3 hour; When detection isocyanato content reaches set(ting)value, be cooled to 10-40 DEG C.
Polyurethane composition for vehicle dormer window cushion pad of the present invention, introduces with the polyether polyol with high activity of phosphazene catalyst catalyzed polymerization in its formula, other raw materials collaborative under, improve damping performance and the sound insulation and noise reduction performance of cushion block.The present invention's urethane makes vehicle dormer window cushion pad, on the basis possessing above-mentioned performance, such that cushion block is more wear-resisting, longer service life, and molecular designing is more flexible, can design the various performances required for us.
The present invention has following beneficial effect:
(1) first, the second component described in stores in liquid state at normal temperatures, not only save energy but also reduce loaded down with trivial details operation;
(2) adopt full water foamed in formulating of recipe, its ozone layer destroying effect ODP value is zero, asepsis environment-protecting, is a kind of environmental friendliness shaped material;
(3) introduce in formulating of recipe process with the polyether polyol with high activity of phosphazene catalyst catalyzed polymerization, obtained polyurethane product has splendid bumper and absorbing shock performance and sound insulation and noise reduction performance;
(4) preparation method of the polyurethane composition for vehicle dormer window cushion pad described in, not only energy-conserving and environment-protective, and also simple, once namely plastic, do not need later stage sulfuration.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but it does not limit enforcement of the present invention.
Following examples Zhong Ge composition weight unit is Kg.
Described polyether glycol A is take glycerine as initiator, carries out catalysis with phosphonitrile class catalyzer, and with the high reactivity polyoxytrimethylene trivalent alcohol of ethylene oxide-capped, its functionality is 3, and number-average molecular weight is 7500, and proportion of primary OH groups is higher than 90%.
Embodiment 1
First component:
Second component:
(1) first component is prepared: by polyether glycol A, POP36/28, DEOA, DC2525, A-1, A-33, H of measuring
2o drops in reactor successively, and setting speed is 60 revs/min, and stir 1 hour, sampling is tested, and meets processing parameter, sends and is satisfied with foam, can obtain first component.
(2) second component is prepared: drop into reactor by based under the polyether glycol A of formula ratio and SD-75 normal temperature, rise to about 80 DEG C, stir, vacuumize degassed 2 hours of dehydration, be cooled to about 10 DEG C and add pure MDI, MDI-50, Carbodiimide-Modified MDI, 80 DEG C of reactions 2 hours, detection is cooled to about 10 DEG C, adds polymeric MDI and phosphoric acid after reaching setting NCO% content value, stir evenly.
(3), when using, first, second component is carried out mixing injection molding by weight 100/80, and die sinking in 8 minutes, namely obtains the polyurethane composition for vehicle dormer window cushion pad.
Embodiment 2
First component:
Second component:
(1) first component is prepared: by polyether glycol A, KGP545, TEA, DEG, DC2525, A1, A33, H of measuring
2o drops in reactor successively, and setting speed is 100 revs/min, and stir 2 hours, sampling is tested, and meets processing parameter, sends and is satisfied with foam, can obtain first component.
(2) second component is prepared: drop into reactor by based under the polyether glycol A of formula ratio and SD-75 normal temperature, rise to about 100 DEG C, stir, vacuumize degassed 3 hours of dehydration, be cooled to about 40 DEG C and add pure MDI, MDI-50,85 DEG C of reactions 3 hours, detection is cooled to about 40 DEG C, adds polymeric MDI and phosphoric acid after reaching setting NCO% content value, stir evenly.
(3), when using, first, second component is carried out mixing injection molding by weight 100/60, and die sinking in 6 minutes, namely obtains the polyurethane composition for vehicle dormer window cushion pad.
Embodiment 3
First component:
Second component:
Polyether glycol A:25
Pure MDI:70
Benzoyl chloride: 10ppm
(1) prepare first component: by measure polyether glycol A, DEOA, Isosorbide-5-Nitrae-BG, DC2525, A-33 and H
2o drops in reactor successively, and setting speed is 80 revs/min, and stir 1 hour, sampling is tested, and meets processing parameter, sends and is satisfied with foam, can obtain first component.
(2) second component is prepared: drop into reactor by based under the polyether glycol A of formula ratio and SD-75 normal temperature, rise to about 90 DEG C, stir, vacuumize degassed 2 hours of dehydration, be cooled to about 20 DEG C and add pure MDI, MDI-50, about 80 DEG C reactions 3 hours, detection is cooled to about 20 DEG C, adds polymeric MDI and Benzoyl chloride after reaching setting NCO% content value, stir evenly.
(3), when using, first, second component is carried out mixing injection molding by weight 100/40, and die sinking in 10 minutes, namely obtains the polyurethane composition for vehicle dormer window cushion pad.
Claims (9)
1. for a polyurethane composition for vehicle dormer window cushion pad, it is characterized in that: be made up of first component and second component, the weight percent of first and second component is 100:40-80, wherein:
(1) first component comprises the raw material of following weight percentage:
(2) second component comprises the raw material of following weight percentage:
Described polyether glycol A is take glycerine as initiator, carries out catalysis with phosphonitrile class catalyzer, and with the high reactivity polyoxytrimethylene trivalent alcohol of ethylene oxide-capped, its functionality is 3, and number-average molecular weight is 7500, and proportion of primary OH groups is higher than 90%.
2. the polyurethane composition for vehicle dormer window cushion pad according to claim 1, is characterized in that: polymer polyatomic alcohol, by polyethers based on vinyl polyether triol, obtains with vinylbenzene or acrylonitrile graft copolymer, its solid content >=30%.
3. the polyurethane composition for vehicle dormer window cushion pad according to claim 1, is characterized in that: chainextender is one or more in ethylene glycol, glycol ether, BDO, 1,3-PD or dipropylene glycol.
4. the polyurethane composition for vehicle dormer window cushion pad according to claim 1, is characterized in that: linking agent is alcamines linking agent; Whipping agent is water; Suds-stabilizing agent is polysiloxane-olefin oxide segmented copolymer; Catalyzer in first component is tertiary amine catalyst.
5. the polyurethane composition for vehicle dormer window cushion pad according to claim 1, is characterized in that: isocyanic ester is one or more in pure MDI, Carbodiimide-Modified MDI, MDI-50 or polymeric MDI.
6. the polyurethane composition for vehicle dormer window cushion pad according to claim 1, is characterized in that: the Aethoxy Sklerol of pore-creating agent to be hydroxyl value be 30-34mgKOH/g.
7. the polyurethane composition for vehicle dormer window cushion pad according to claim 1, is characterized in that: storage stabilizing agent is phosphoric acid or Benzoyl chloride.
8. a preparation method for the arbitrary described polyurethane composition for vehicle dormer window cushion pad of claim 1-7, is characterized in that comprising the following steps:
(1) first component is prepared: first polyether glycol A and polymer polyatomic alcohol are dropped in reactor and stir, then chainextender, linking agent, catalyzer, suds-stabilizing agent and whipping agent is added successively, rotating speed is 60-100 rev/min, stirs 1-2 hour, obtains first component;
(2) second component is prepared: drop in reactor by polyether polyol with high activity and pore-creating agent, stir and heat up, dewater under vacuum condition degassed, then cooling adds isocyanate reaction, when detection isocyanato content reaches set(ting)value, and cooling, add storage stabilizing agent, namely obtain second component;
(3), when using, first, second component mixed, injection molding, sealing, die sinking, namely obtain the polyurethane composition for vehicle dormer window cushion pad.
9. the preparation method of the polyurethane composition for vehicle dormer window cushion pad according to claim 8, is characterized in that: in step (2), stirs and is warming up to 90-100 DEG C; Dewater degassed 2-3 hour; When being cooled to 10-40 DEG C, add isocyanic ester at 80-85 DEG C of reaction 2-3 hour; When detection isocyanato content reaches set(ting)value, be cooled to 10-40 DEG C.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105968269A (en) * | 2016-07-12 | 2016-09-28 | 佳化化学科技发展（上海）有限公司 | Composition capable substituting styrene-acrylonitrile copolymerized POP (polymer polyol) |
| CN106750132A (en) * | 2016-12-30 | 2017-05-31 | 中物功能材料研究院有限公司 | A kind of polyurethane foam vibration-absorptive material and preparation method thereof |
| CN107057019A (en) * | 2017-01-20 | 2017-08-18 | 苏州高夫高分子材料有限公司 | A kind of polyurethane and its product and preparation method |
| CN108250392A (en) * | 2016-12-28 | 2018-07-06 | 现代自动车株式会社 | For the polyurethane foam combination of sound-absorbing material |
| CN108250393A (en) * | 2017-12-21 | 2018-07-06 | 浙江华峰新材料股份有限公司 | Cement baffle polyurethane stock solution and its preparation method and application |
| CN108948323A (en) * | 2018-06-29 | 2018-12-07 | 长春峰泰汽车胶业有限公司 | A kind of automobile polyurethane composite material and preparation method thereof |
| CN109514193A (en) * | 2018-11-23 | 2019-03-26 | 安徽邦尼特轨道装备有限公司 | Production process of door frame of passenger room door |
| CN109957090A (en) * | 2019-04-23 | 2019-07-02 | 张会仙 | A kind of preparation method of railroad track liquid rubber cushion blocking |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105968269A (en) * | 2016-07-12 | 2016-09-28 | 佳化化学科技发展（上海）有限公司 | Composition capable substituting styrene-acrylonitrile copolymerized POP (polymer polyol) |
| US11261287B2 (en) | 2016-07-12 | 2022-03-01 | Jiahua Science & Technology Development (Shanghai) Ltd. | Composition capable of substituting use of styrene-acrylonitrile copolymer POP |
| CN108250392A (en) * | 2016-12-28 | 2018-07-06 | 现代自动车株式会社 | For the polyurethane foam combination of sound-absorbing material |
| CN108250392B (en) * | 2016-12-28 | 2021-08-17 | 现代自动车株式会社 | Polyurethane foam composition for sound absorbing material |
| CN106750132A (en) * | 2016-12-30 | 2017-05-31 | 中物功能材料研究院有限公司 | A kind of polyurethane foam vibration-absorptive material and preparation method thereof |
| CN107057019A (en) * | 2017-01-20 | 2017-08-18 | 苏州高夫高分子材料有限公司 | A kind of polyurethane and its product and preparation method |
| CN108250393A (en) * | 2017-12-21 | 2018-07-06 | 浙江华峰新材料股份有限公司 | Cement baffle polyurethane stock solution and its preparation method and application |
| CN108250393B (en) * | 2017-12-21 | 2020-09-29 | 浙江华峰新材料有限公司 | Polyurethane stock solution for cement baffle, and preparation method and application thereof |
| CN108948323A (en) * | 2018-06-29 | 2018-12-07 | 长春峰泰汽车胶业有限公司 | A kind of automobile polyurethane composite material and preparation method thereof |
| CN109514193A (en) * | 2018-11-23 | 2019-03-26 | 安徽邦尼特轨道装备有限公司 | Production process of door frame of passenger room door |
| CN109957090A (en) * | 2019-04-23 | 2019-07-02 | 张会仙 | A kind of preparation method of railroad track liquid rubber cushion blocking |
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| CN105440243B (en) | 2018-07-24 |
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