CN109776758A - A kind of automobile engine sound insulation pad polyurethane foam and preparation method thereof - Google Patents
A kind of automobile engine sound insulation pad polyurethane foam and preparation method thereof Download PDFInfo
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- CN109776758A CN109776758A CN201811590122.5A CN201811590122A CN109776758A CN 109776758 A CN109776758 A CN 109776758A CN 201811590122 A CN201811590122 A CN 201811590122A CN 109776758 A CN109776758 A CN 109776758A
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- automobile engine
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Abstract
The present invention relates to a kind of automobile engine sound insulation pad polyurethane foams and preparation method thereof, including A material and B material, each component is calculated by weight as: A material: 100 parts of polyether polyol, 0.5 ~ 2 part of silicone oil, 10 ~ 15 parts of water, 0.2 ~ 1.0 part of kicker, 0.1 ~ 1.0 part of gel catalyst, 0.1 ~ 1.0 part of antioxidant, solid flame retardant: 10 ~ 20 parts；B material: polymeric MDI and MDI are the mixture of 50:50 ~ 90:10 in mass ratio；The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1-1.25 in B material.Preparation method of the present invention is simple, step is easily operated, the automobile engine sound insulation pad polyurethane foam being prepared is able to satisfy light weight, low smell, it is high to form elongation percentage, and there are good sound absorption qualities, the preparation method in the present invention is suitable for large-scale industrial production, while the stability of product is also improved.
Description
Technical field
The present invention relates to a kind of automobile engine sound insulation pad polyurethane foams and preparation method thereof, belong to automobile interior decoration preparation skill
Art field.
Background technique
Polyurethane foam is applied and its extensively in life.In the various parts of manufacture automobile, especially in inside gadget, gather
The foamed material of urethane occupies an important position.The preparation of the engine sound insulating pad of automobile just uses half hard bubble of polyurethane.It is poly-
Half hard bubble of urethane is at 180 DEG C or so and compound under the mold of pressurization with fabric under the action of polyurethane binder, forms automobile
Engine sound insulating pad.This technique can provide the product for meeting the requirement of properties, such as mouldability, sound absorption properties, resistance for automobile factory
Combustion property and the dimensional stability of resistance to environmental testing, etc..Although kinds of automobile is various, the requirement for engine sound insulating pad is big
Seemingly, that is, lightweight, sound-absorbing are fire-retardant etc. for multiphase.
With the development of auto industry and society, automobile industry is not only required to meet the car engine sound insulation of basic performance
Pad requires product to be likewise supplied with lightweight, inexpensive low, the advantage of high efficiency production more and more.It is currently marketed same
Class product, to the limitation that requires for meeting automobile industry, such as sound-absorbing difference/rate of closed hole height, cost of material is high, manufacturing scrap
Rate height causes the requirement for being unable to satisfy large-scale low-cost production.
The automobile engine sound insulation pad of early stage uses back spinning to spin cotton and is made, and weight is big, at high cost, poor fire, Er Qiesheng
Produce low efficiency.Current trend is gradually substituted by light polyurethane foamed material.It is used for the bubble of engine pad currently on the market
Foam is completed with the production technology of box foaming, and this method investment is small, is suitable for unification product and a small amount of applications, and
Sound absorption properties and poor fire limit being widely used in high-end vehicle.And the formula sound absorption qualities that we develop are much excellent
More in domestic pharmaceutical industry industry, and meet automobile industry to the anti-flammability high requirement of material, at the same time due to can the company of use
Continuous method production, the production efficiency of foam are substantially risen.
Summary of the invention
The purpose of the present invention is to solve the above problem, provide a kind of automobile engine sound insulation pad polyurethane foam and its
There is high sound-absorbing, fire-retardant, low-density property can satisfy automobile industry for preparation method, the automobile engine sound insulation pad being prepared
Requirement to material.
The present invention adopts the following technical scheme: a kind of automobile engine sound insulation pad polyurethane foam, including A material and B material, respectively
Component is calculated by weight as: A material: 100 parts of polyether polyol, 0.5~2 part of silicone oil, and 10~15 parts of water, kicker 0.2
~1.0 parts, 0.1~1.0 part of gel catalyst, 0.1~1.0 part of antioxidant, solid flame retardant: 10~20 parts；
B material: polymeric MDI and MDI are the mixture of 50:50~90:10 in mass ratio；
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1-1.25 in the B material；
Automobile engine sound insulation pad polyurethane foam will be used for up to product after above-mentioned A material and B material in proportion mixed foaming
Material.
Further, the polyether polyol includes:
Polyethers A: carbohydrate or 10~50 parts of sorbierite starting polyether polyol, hydroxyl value 56-480mgKOH/g；
Polyethers B: 10~40 parts of glycerol starting polyether polyol；Hydroxyl value 28-300mgKOH/g
Polyethers C: 10~40 parts of aperture polyethers；Hydroxyl value 28-56mgKOH/g.
Further, the kicker be HUNTSMAN Jeffcat ZF10, ZR50, Jeffcat DFA or
Dabaco NE300。
Further, the gel catalyst is DMEA.
The preparation method of automobile engine sound insulation pad polyurethane foam, includes the following steps:
(1) A material prepares: successively weigh 100 parts of polyether polyol in parts by weight, 0.5~2 part of silicone oil, and 10~15 parts of water,
0.2~1.0 part of kicker, 0.1~1.0 part of gel catalyst, 0.1~1.0 part of antioxidant, solid flame retardant 10~20
Part, each component is sequentially put into a mixing bowl and is stirred mixing, agitator speed 10-20rpm/min, incorporation time is
50-70min；
(2) B material prepares: being in mass ratio the mixture of 50:50~90:10 by polymeric MDI and MDI, each group is placed in
It produces in batch can, keeping feed liquid temperature in production batch can is 20-24 DEG C；
(3) A material and B material are placed in hybrid system by high-low pressure metering pump-metered respectively and are foamed；Wherein in B material
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1-1.25, and the mixing speed that feed liquid enters after mixing head is
1000-5000rpm/min, conveyor belt speed 3-7m/min；
By adjusting preposition lifter plate rate-determining steps foaming quality and bubble block week whole degree；Foam continuous production starts rear basis
Size carries out cutting on line and on-line tuning product width；
(5) it cures: the bubble block after cutting obtained by step (3) being prepared after curing in 24-48 hours to get product wet process and is used
Polyurethane foam.
Preparation method of the present invention is simple, and step is easily operated, the automobile engine sound insulation pad polyurethane foam energy being prepared
Meet light weight, low smell, molding elongation percentage is high, and has good sound absorption qualities, and the preparation method in the present invention is suitable for greatly
Technical scale metaplasia produces, while the stability of product is also improved.
Detailed description of the invention
Fig. 1 is the sound absorption qualities curve graph of polyurethane foam measurement in the embodiment of the present invention.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Wherein component of the embodiment one into embodiment three is as shown in the table:
* institute's hydroxyl in all polyethers and all additives in isocyanate group reaction equivalent number/A material in index=B material
Equivalents
Reaction equivalent number=reactant weight/reactant equivalent
Isocyanates reaction equivalent number=isocyanate weight/(NCO molecular weight/NCO%x100)
Hydroxyl reaction equivalent number=polyethers weight/(56100/ hydroxyl value)
The measurement of sound absorption qualities is carried out to the polyurethane foam that embodiment one and embodiment two are prepared, comparative sample is general
Logical polyurethane foam, as a result as shown in Figure 1.As shown in Figure 1, the sound absorption qualities of polyurethane foam can reach BASF and be even more than
Its sound absorption qualities index, and its light-weight product is rigidly good, sound insulation while foam high production efficiency.
Example IV:
A kind of automobile engine sound insulation pad polyurethane foam, including A material and B material, each component are calculated by weight as: A material: poly-
100 parts of ethoxylated polyhydric alcohol, 0.5 part of silicone oil, 10 parts of water, 0.2 part of kicker, 0.1 part of gel catalyst, 0.1 part of antioxidant, Gu
Body fire retardant: 10 parts；
B material: polymeric MDI and MDI are the mixture of 50:50 in mass ratio；
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1.25 in the B material；
Automobile engine sound insulation pad polyurethane foam will be used for up to product after above-mentioned A material and B material in proportion mixed foaming
Material.
Wherein, the polyether polyol in A material includes: polyethers A: carbohydrate or 50 parts of sorbierite starting polyether polyol, hydroxyl value
56mgKOH/g；
Polyethers B: 10 parts of glycerol starting polyether polyol；Hydroxyl value 28mgKOH/g
Polyethers C: 40 parts of aperture polyethers；Hydroxyl value 56mgKOH/g.
The preparation method of automobile engine sound insulation pad polyurethane foam, includes the following steps:
(1) A material prepares: successively weighing 100 parts of polyether polyol in parts by weight, 0.5 part of silicone oil, 10~15 parts of water, sends out
0.2 part of catalyst of bubble, 0.1 part of antioxidant, 10 parts of solid flame retardant, each component is sequentially put by 0.1 part of gel catalyst
Mixing, agitator speed 10rpm/min, incorporation time 70min are stirred in a mixing bowl；
(2) B material prepares: being in mass ratio the mixture of 50:50 by polymeric MDI and MDI, each group is placed in and produces batch can
In, keeping feed liquid temperature in production batch can is 20 DEG C；
(3) A material and B material are placed in hybrid system by high-low pressure metering pump-metered respectively and are foamed；Wherein in B material
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1.25, and the mixing speed that feed liquid enters after mixing head is
1000rpm/min, conveyor belt speed 3m/min；
By adjusting preposition lifter plate rate-determining steps foaming quality and bubble block week whole degree；Foam continuous production starts rear basis
Size carries out cutting on line and on-line tuning product width；
(5) it cures: the bubble block after cutting obtained by step (3) is prepared to get product wet process with poly- after curing in 24 hours
Urethane foam.
Embodiment five:
A kind of automobile engine sound insulation pad polyurethane foam, including A material and B material, each component are calculated by weight as: A material: poly-
100 parts of ethoxylated polyhydric alcohol, 2 parts of silicone oil, 15 parts of water, 1.0 parts of kicker, 1.0 parts of gel catalyst, 1.0 parts of antioxidant, solid
Fire retardant: 20 parts；
B material: polymeric MDI and MDI are the mixture of 90:10 in mass ratio；
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1.25 in the B material；
Automobile engine sound insulation pad polyurethane foam will be used for up to product after above-mentioned A material and B material in proportion mixed foaming
Material.
Wherein, the polyether polyol in A material includes: polyethers A: carbohydrate or 10 parts of sorbierite starting polyether polyol, hydroxyl value
480mgKOH/g；
Polyethers B: 40 parts of glycerol starting polyether polyol；Hydroxyl value 300mgKOH/g
Polyethers C: 40 parts of aperture polyethers；Hydroxyl value 28mgKOH/g.
The preparation method of automobile engine sound insulation pad polyurethane foam, includes the following steps:
(1) A material prepares: successively weighing 100 parts of polyether polyol in parts by weight, 2 parts of silicone oil, 10~15 parts of water, foams
1.0 parts of catalyst, 1.0 parts of gel catalyst, 1.0 parts of antioxidant, 20 parts of solid flame retardant, each component is sequentially put into stirring
Mixing, agitator speed 20rpm/min, incorporation time 50min are stirred in cylinder；
(2) B material prepares: being in mass ratio the mixture of 90:10 by polymeric MDI and MDI, each group is placed in and produces batch can
In, keeping feed liquid temperature in production batch can is 24 DEG C；
(3) A material and B material are placed in hybrid system by high-low pressure metering pump-metered respectively and are foamed；Wherein in B material
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1.25, and the mixing speed that feed liquid enters after mixing head is
5000rpm/min, conveyor belt speed 7m/min；
By adjusting preposition lifter plate rate-determining steps foaming quality and bubble block week whole degree；Foam continuous production starts rear basis
Size carries out cutting on line and on-line tuning product width；
(5) it cures: the bubble block after cutting obtained by step (3) is prepared to get product wet process with poly- after curing in 48 hours
Urethane foam.
Claims (5)
1. a kind of automobile engine sound insulation pad polyurethane foam, it is characterised in that: including A material and B material, each component is according to parts by weight
Are as follows: A material: 100 parts of polyether polyol, 0.5 ~ 2 part of silicone oil, 10 ~ 15 parts of water, 0.2 ~ 1.0 part of kicker, gel catalyst
0.1 ~ 1.0 part, 0.1 ~ 1.0 part of antioxidant, solid flame retardant: 10 ~ 20 parts；
B material: polymeric MDI and MDI are the mixture of 50:50 ~ 90:10 in mass ratio；
The ratio of contained isocyanate equivalent and the hydroxyl equivalent in A material is 1-1.25 in the B material；
Automobile engine sound insulation pad polyurethane foamed material will be used for up to product after above-mentioned A material and B material in proportion mixed foaming.
2. automobile engine sound insulation pad polyurethane foam as described in claim 1, it is characterised in that: the polyether polyol packet
It includes:
Polyethers A: carbohydrate or 10 ~ 50 parts of sorbierite starting polyether polyol, hydroxyl value 56-480mg KOH/g；
Polyethers B: 10 ~ 40 parts of glycerol starting polyether polyol；Hydroxyl value 28-300mg KOH/g；
Polyethers C: 10 ~ 40 parts of aperture polyethers；Hydroxyl value 28-56mgKOH/g.
3. automobile engine sound insulation pad polyurethane foam as described in claim 1, it is characterised in that: the kicker is
HUNTSMAN Jeffcat ZF10, ZR50, Jeffcat DFA or Dabaco NE300.
4. automobile engine sound insulation pad polyurethane foam as described in claim 1, it is characterised in that: the gel catalyst is
DMEA。
5. the preparation method of automobile engine sound insulation pad polyurethane foam described in claim 1, it is characterised in that: including walking as follows
It is rapid:
(1) A material prepares: successively weighing 100 parts of polyether polyol in parts by weight, 0.5 ~ 2 part of silicone oil, 10 ~ 15 parts of water, foaming is urged
0.2 ~ 1.0 part of agent, 0.1 ~ 1.0 part of gel catalyst, 0.1 ~ 1.0 part of antioxidant, 10 ~ 20 parts of solid flame retardant, by each component
It sequentially puts into a mixing bowl and is stirred mixing, agitator speed 10-20rpm/min, incorporation time 50-70min；
(2) B material prepares: being in mass ratio the mixture of 50:50 ~ 90:10 by polymeric MDI and MDI, each group is placed in production
In batch can, keeping feed liquid temperature in production batch can is 20-24 DEG C；
(3) A material and B material are placed in hybrid system by high-low pressure metering pump-metered respectively and are foamed；It is wherein contained in B material
The ratio of isocyanate equivalent and the hydroxyl equivalent in A material is 1-1.25, and it is 1000- that feed liquid, which enters the mixing speed after mixing head,
5000rpm/min, conveyor belt speed 3-7m/min；
By adjusting preposition lifter plate rate-determining steps foaming quality and bubble block week whole degree；Foam continuous production start after according to size
Carry out cutting on line and on-line tuning product width；
(5) it cures: the bubble block after cutting obtained by step (3) is prepared into poly- ammonia after curing in 24-48 hours to get product wet process
Ester foam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811590122.5A CN109776758A (en) | 2018-12-25 | 2018-12-25 | A kind of automobile engine sound insulation pad polyurethane foam and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811590122.5A CN109776758A (en) | 2018-12-25 | 2018-12-25 | A kind of automobile engine sound insulation pad polyurethane foam and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982030A (en) * | 2019-11-26 | 2020-04-10 | 沈阳鲜众聚氨酯有限公司 | Continuous production method for preparing light polyurethane semi-rigid foam by one-step method |
| CN111038010A (en) * | 2019-12-31 | 2020-04-21 | 浙江华江科技股份有限公司 | Foam press-filling type honeycomb composite board and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174166A (en) * | 2011-01-20 | 2011-09-07 | 北京科聚化工新材料有限公司 | Thermoplastic semihard polyurethane foam for automobile ceiling and preparation method thereof |
| CN103275296A (en) * | 2013-04-16 | 2013-09-04 | 无锡吉兴木桥高分子材料科技有限公司 | Polyurethane foam for wet-method preparation and preparation method thereof |
| CN104086747A (en) * | 2014-07-11 | 2014-10-08 | 无锡吉兴木桥高分子材料科技有限公司 | Lightweight polyurethane foam for automobile roof and preparation method of lightweight polyurethane foam |
-
2018
- 2018-12-25 CN CN201811590122.5A patent/CN109776758A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174166A (en) * | 2011-01-20 | 2011-09-07 | 北京科聚化工新材料有限公司 | Thermoplastic semihard polyurethane foam for automobile ceiling and preparation method thereof |
| CN103275296A (en) * | 2013-04-16 | 2013-09-04 | 无锡吉兴木桥高分子材料科技有限公司 | Polyurethane foam for wet-method preparation and preparation method thereof |
| CN104086747A (en) * | 2014-07-11 | 2014-10-08 | 无锡吉兴木桥高分子材料科技有限公司 | Lightweight polyurethane foam for automobile roof and preparation method of lightweight polyurethane foam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982030A (en) * | 2019-11-26 | 2020-04-10 | 沈阳鲜众聚氨酯有限公司 | Continuous production method for preparing light polyurethane semi-rigid foam by one-step method |
| CN111038010A (en) * | 2019-12-31 | 2020-04-21 | 浙江华江科技股份有限公司 | Foam press-filling type honeycomb composite board and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214191 friendship north road, Xishan Economic Development Zone, Jiangsu, Wuxi 322, China Applicant after: Wuxi Jixing polymer material technology Co.,Ltd. Address before: 214191 friendship north road, Xishan Economic Development Zone, Jiangsu, Wuxi 322, China Applicant before: PROPRIETECT LLP |
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Effective date of registration: 20210830 Address after: 214191 friendship north road, Xishan Economic Development Zone, Jiangsu, Wuxi 322, China Applicant after: WUXI JIXING AUTO PARTS Co.,Ltd. Address before: 214191 friendship north road, Xishan Economic Development Zone, Jiangsu, Wuxi 322, China Applicant before: Wuxi Jixing polymer material technology Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190521 |