CN104401238B - A kind of automotive seat sponge, preparation method, mould and automotive seat - Google Patents
A kind of automotive seat sponge, preparation method, mould and automotive seat Download PDFInfo
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- CN104401238B CN104401238B CN201410594838.8A CN201410594838A CN104401238B CN 104401238 B CN104401238 B CN 104401238B CN 201410594838 A CN201410594838 A CN 201410594838A CN 104401238 B CN104401238 B CN 104401238B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/7023—Coach-like constructions
- B60N2/7035—Cushions
-
- 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
-
- 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
- C08G2110/0008—Foam properties flexible
-
- 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
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- 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
- C08G2110/0041—Foam properties having specified density
- C08G2110/0058—≥50 and <150kg/m3
Abstract
The invention discloses a kind of automotive seat sponge, preparation method, mould and automotive seat, the automotive seat sponge includes function of tonic chord area, and function of tonic chord area both sides are respectively equipped with left support area and right support area；The function of tonic chord area includes forward region, center and rear area successively from front to back；The density of the center is 60~70kg/m3, the density of forward region is 45~55kg/m3, the density in left support area, right support area and rear area is 40~50kg/m3.The automotive seat sponge of the present invention, the characteristics of hardness many with multi-density, in the position for needing to support, possesses preferable supportive, is needing soft position, possesses good resiliency and stickiness；During automobile turning, the harder region in both sides can reduce the transverse acceleration that human body is born, so that human body two with huckle across can lightly support body, it is ensured that the lateral stability of human body, comfortableness and security are preferable.
Description
Technical field
The invention belongs to automotive seating art field, it is related to a kind of automotive seat sponge, also relates to a kind of automotive seats
The preparation method of chair sponge, mould and the automotive seat using above-mentioned automotive seat sponge for preparing automotive seat sponge.
Background technology
Automotive seat sponge is the important component of automotive seat, and it is directly connected to driver and occupant in by bus
Level of comfort.At present, automobile is the single hardness sponge products of single density, conventional MDI system seats with polyurethane sponge
The mechanical property of sponge is as follows：25% indentation force deflection is (150 ± 20) N, and 65% indentation force deflection is (390 ± 20) N, and density is
(50±5)kg/m3.Although the sponge meets the requirement of seating to a certain extent, this product can not currently have been met
The comfortableness requirement of passenger.It if automotive seat sponge is a little hard, can make one to take uncomfortable, use for a long time, seating can be made
Person feels relatively to tire out；If softer, sponge supportive is not enough, poor with fabric arranging effect, while seat can be caused to break away,
Influence safety.
The content of the invention
It is an object of the invention to provide a kind of automotive seat sponge, the existing automotive seat sponge density hardness of solution is single,
Take uncomfortable problem.
Second object of the present invention is to provide a kind of preparation method of automotive seat sponge.
Third object of the present invention is to provide a kind of mould for being used to prepare automotive seat sponge.
Fourth object of the present invention is to provide a kind of automotive seat using above-mentioned automotive seat sponge.
In order to realize the above object the technical solution adopted in the present invention is：A kind of automotive seat sponge, including the function of tonic chord
Area, function of tonic chord area both sides are respectively equipped with left support area and right support area；The function of tonic chord area from front to back successively include forward region,
Center and rear area；The density of the center is 60~70kg/m3, the density of forward region is 45~55kg/m3, left support
The density in area, right support area and rear area is 40~50kg/m3。
25% indentation force deflection of the center is 110~150N, and 25% indentation force deflection of forward region is 150~190N,
25% indentation force deflection in left support area, right support area and rear area is 190~250N.
In the automotive seat sponge connecting portion of each subregion be by the position adjacent sectors raw material foaming when from
Dynamic convergence extruding, common foaming.
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the automotive seat sponge, which is,:40~65
Ratio be made：
It is 40~80 parts of PPG, 20~60 parts of graft polyether, 0.2~0.3 part of reaction expansion type amines catalyst, preceding
0.2~0.5 part of phase gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, 3~4 parts of foaming agent, multiple crosslinking agent 1
~2.4 parts, 0.3~1.0 part of stabilizer.
Further, it by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the center, which is,:40
What~50 ratio was made：60~80 parts of PPG, 20~40 parts of graft polyether, reaction expansion type amines catalyst 0.2
~0.3 part, 0.2~0.5 part of early stage gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, 3~3.8 parts of foaming agent,
1~2 part of multiple crosslinking agent, 0.3~1.0 part of stabilizer；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the forward region, which is,:50~60 ratio
What example was made：50~80 parts of PPG, 20~50 parts of graft polyether, 0.2~0.3 part of reaction expansion type amines catalyst,
0.2~0.5 part of early stage gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, 3~4 parts of foaming agent, multiple crosslinking agent
1~2 part, 0.3~1.0 part of stabilizer；
The left support area, right support area and rear area are raw material and isocyanates by following parts by weight according to quality
Than for 100:What 55~65 ratio was made：40~80 parts of PPG, 20~60 parts of graft polyether, reaction expansion type amine
0.2~0.3 part of catalyst, 0.2~0.5 part of early stage gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, foaming agent
3.2~4 parts, 1~2.4 part of multiple crosslinking agent, 0.3~1.0 part of stabilizer.
Wherein, the PPG is epoxy ethane-epoxy propane class copolyether polyalcohol.
It is preferred that, the PPG be TEP-330N (Tianjin petrochemical industry Co., Ltd), FA-703 (can Leah it is many
First alcohol (Nanjing) Co., Ltd), any one in GEP-330N (Shanghai Gaoqiao petrochemical industry Co., Ltd).
The graft polyether is expoxy propane class graft polyether.
It is preferred that, the graft polyether is POP-H45 (Jiangsu Changhua Polyurethane Technology Co., Ltd.), FA-3630S (south
Capital can Leah polyalcohol Co., Ltd) in any one.
The reaction expansion type amines catalyst is that (the bright emerging industry in Shanghai is limited by ZF-10 (Hensel is graceful), ALLCHEM 328
Company) in any one.
The early stage gel-type catalyst is response type early stage gel-type catalyst.
It is preferred that, the early stage gel-type catalyst is ZR-50 (Hensel is graceful), DPA (Hensel is graceful), ZF-130 (Hensel is graceful)
In any one.
The later stage gel-type catalyst is response type later stage gel-type catalyst.
It is preferred that, the later stage gel-type catalyst is Dabco NE1070 (aerochemistry company).
The foaming agent is water.
The multiple crosslinking agent is low molecular weight polyols amine multiple crosslinking agent.
The multiple crosslinking agent is the mixture of diethanol amine and triethanolamine, and molecular weight is 105~150.
The multiple crosslinking agent is that the mass ratio of diethanol amine and triethanolamine is 1:1 mixture.
The stabilizer is silicone oil stabilizers.
It is preferred that, the stabilizer is that (stepping figure new high-tech material has by L-3151 (Mai Tu new high-tech materials Co., Ltd), L-3628
Limit company), any one in L-5309J (Mai Tu new high-tech materials Co., Ltd).
The isocyanates is modified diphenylmethane diisocyanate (MDI)；Wherein, NCO weight/mass percentage composition is
25.5%~32.5%.
The modified diphenylmethane diisocyanate be by 4,4- methyl diphenylene diisocyanates mass content not
Methyl diphenylene diisocyanate heterogeneous mixture less than 40% and the intermediate product obtained by polyethers A, polyethers B hybrid reactions,
The mixing that the weight/mass percentage composition for the NCO being mixed to form again with liquefaction methyl diphenylene diisocyanate is 25.5%~32.5%
Thing.Wherein, in methyl diphenylene diisocyanate heterogeneous mixture, except the mass content of 4,4- methyl diphenylene diisocyanates
It is not less than outside 40%, remaining is methyl diphenylene diisocyanate isomery homologue.In the polyethers A, the matter of oxirane
Amount content is 50%-90%；The mass content of polyethers B ethylene oxides is 25%.The NCO of intermediate product mass content
For 15%.
The preparation method of the automotive seat sponge of the present invention is cold-curing molding process planning.
A kind of preparation method of above-mentioned automotive seat sponge, comprises the following steps：
1) high density feed liquid, Midst density feed liquid and the low-density feed liquid of foaming are respectively provided for, it is standby；
2) low-density feed liquid is first poured into mould region corresponding with left support area, rear area, right support area successively,
Midst density feed liquid is poured into mould region corresponding with forward region again, then high density feed liquid is poured into mould with
The corresponding region of heart district；
3) after being poured, heat-insulation pressure keeping is molded and is stripped, and opens bubble, produces.
Step 3) in, the temperature of the heat-insulation pressure keeping shaping is 40~60 DEG C, and pressure is 0.6MPa, and the time is 3~5min.
Step 3) in, the bubble of opening is by opening the processing of bubble machine, specially by products formed 90% by the products formed after the demoulding
Volume is compressed, and discharges waste gas.
Set on a kind of mould for preparing used in above-mentioned automotive seat sponge, including former and formpiston, the former
Have in forming tank, the forming tank longitudinally provided with two vertical muscle, forming tank is from left to right divided into left shaping area, main shaping area
With right shaping area；Laterally provided with two horizontal bars in the main shaping area, forming tank is divided into from front to back preceding shaping area, it is middle into
Type area and aftershaping area.
The height of the horizontal bar and vertical muscle is less than the notch of forming tank.
The formpiston not subregion, the bottom of its corresponding product, fixed present basin (seat basin and sponge products polycrystalline substance in itself
It is identical, at the same it is also identical with formpiston structure, seat cushion can be blocked, fixed, supporting role is risen to seat cushion) on, it is that passenger contacts not
The region arrived.
A kind of automotive seat, including cushion and backrest, the cushion and/or backrest use above-mentioned automotive seat sponge.
The automotive seat sponge of the present invention, is to be measured using Tekscan human pressure's distribution measurement systems, analyzed
Go out the area distribution of stress when human body is taken, different requirements then are proposed to the performance of foam according to different subregions, according to
Human body difference stress point, designs the soft durometer of different zones sponge.
The automotive seat sponge of the present invention, the density of center is 60~70kg/m3, the density of forward region for 45~
55kg/m3, the density in left support area, right support area and rear area is 40~50kg/m3, the characteristics of hardness many with multi-density, with
The single single hardness sponge products of density and general sponge of the prior art are compared, and are had the advantage that：
1st, compared with general sponge, in the position for needing to support, possess preferable supportive, needing soft position,
Possess good resiliency and stickiness；
2nd, during automobile turning, the harder region in both sides can reduce the transverse acceleration that human body is born, so as to human body two across
Body can be lightly supported with huckle, it is ensured that the lateral stability of human body, comfortableness and security are preferable, and this is in operator's seat
Chair, which embodies, to be especially apparent；
3rd, human body is taken initial and takes process for a long time, and middle softer region, foam is softer, there is good moulding
Property, human body seating is without extruding, and human bodily form fits well with seat, and impression is comfortable, and resiliency is good；
4th, identical product different zones different soft and hard degree is designed, corner hard area, supportive is coated to surface cover by force, well-pressed, U.S.
See；More fitted after soft zone, surface cover cladding, coated sensation is more excellent；
5th, designed by density zoning domain, the utilization of density regions, realize the lightweight of foam and optimize from structure
The material cost of foam, realization reduces cost, lifts the level of profitability；
6th, using environment-friendly type high-density, Midst density and low-density soft polyurethane foam material, mixing cast product is substituted single
The single hardness raw material of density, to reach the function that different densities and hardness are realized in same sponge products different zones；Simultaneously
According to ergonomic's principle, the soft or hard subregion of sponge seat cushion is realized, product comfort energy is lifted.
Low-density feed liquid, is first poured into mould and left support by the preparation method of the automotive seat sponge of the present invention successively
Area, rear area, the corresponding region in right support area, then Midst density feed liquid is poured into mould region corresponding with forward region, so
High density feed liquid is poured into mould region corresponding with center afterwards, using the pouring type from periphery to center, realized
Different types of raw material subregion foaming, it is achieved thereby that the preparations of many hardness automotive seat sponges of multi-density；In addition to mould
Portion needs the extra equipment of increase and investment, and production efficiency is high；The preparation method technique is simple, and easy to operate, cost is low, is adapted to
Popularization and application.
Longitudinally provided with two vertical muscle in the mould for being used to prepare automotive seat sponge of the present invention, the forming tank of former,
Forming tank is from left to right divided into left shaping area, main shaping area and right shaping area；Two are laterally provided with the main shaping area
Horizontal bar, forming tank is divided into from front to back preceding shaping area, middle shaping area and aftershaping area, passes through two vertical muscle and two horizontal bars
Set, realize the separate of five subregions, so as to realize density and hardness subregion in same mould, make different type former
Material is confined to FX and causes crossfire phenomenon without crossing each other, it is achieved thereby that being foamed without kind of raw material subregion.
Brief description of the drawings
Fig. 1 is the structural representation of the automotive seat sponge of embodiment 1；
Fig. 2 is the structural representation of former in the mould therefor of embodiment 1；
Fig. 3 is the pictorial diagram of former in the mould therefor of embodiment 1；
Fig. 4 is the pictorial diagram of formpiston in the mould therefor of embodiment 1；
Fig. 5 is the process chart of the preparation method of the automotive seat sponge of the present invention；
Fig. 6 is feed liquid casting sequence schematic diagram in the preparation method of the automotive seat sponge of the present invention.
Embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment 1
The automotive seat sponge of the present embodiment, as shown in figure 1, including function of tonic chord area, function of tonic chord area both sides are respectively equipped with a left side
Support 4 and right support area 5；The function of tonic chord area includes forward region 3, center 1 and rear area 2 successively from front to back；It is described
The density of center 1 is 60kg/m3, 25% indentation force deflection is 150N；The density of forward region 3 is 45kg/m3, 25% indentation force deflection
For 190N；The density in left support area 4, right support area 5 and rear area 2 is 40kg/m3, 25% indentation force deflection is 250N.
In the automotive seat sponge connecting portion of each subregion be by the position adjacent sectors raw material foaming when from
Dynamic convergence extruding, common foaming.
In the automotive seat sponge of the present embodiment, the center be by following parts by weight raw material and isocyanates by
It is 100 according to mass ratio:What 40 ratio (high density feed liquid) was made：80 parts of PPG, 20 parts of graft polyether, reaction foaming
It is 0.3 part of type amines catalyst, 0.4 part of early stage gel-type catalyst, 0.5 part of later stage gel-type catalyst, 3.0 parts of foaming agent, multiple
Close 1.4 parts of crosslinking agent, 0.7 part of stabilizer；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the forward region, which is,:50 ratio (in
Density feed liquid) be made：70 parts of PPG, 30 parts of graft polyether, 0.3 part of reaction expansion type amines catalyst, early stage are coagulated
0.2 part of glue-type catalyst, 0.6 part of later stage gel-type catalyst, 3.7 parts of foaming agent, 1.0 parts of multiple crosslinking agent, stabilizer 0.7
Part；
The left support area, right support area and rear area are raw material and isocyanates by following parts by weight according to quality
Than for 100:What 55 ratio (low-density feed liquid) was made：50 parts of PPG, 50 parts of graft polyether, reaction expansion type amine
0.3 part of catalyst, 0.2 part of early stage gel-type catalyst, 0.55 part of later stage gel-type catalyst, 4.0 parts of foaming agent, composite crosslinking
2.0 parts of agent, 0.3 part of stabilizer.
Wherein, the PPG is expoxy propane class PPG TEP-330N (the limited public affairs of Tianjin petrochemical industry
Department)；The graft polyether is expoxy propane class graft polyether POP-H45 (Jiangsu Changhua Polyurethane Technology Co., Ltd.)；It is described
It is ZF-10 to react expansion type amines catalyst (Hensel is graceful)；The early stage gel-type catalyst is that response type early stage gel-type is urged
Agent ZR-50 (Hensel is graceful)；The later stage gel-type catalyst is response type later stage gel-type catalyst Dabco NE-1070
(aerochemistry company)；The foaming agent is water；The multiple crosslinking agent is that the mass ratio of diethanol amine and triethanolamine is 1:1
Mixture；The stabilizer is silicone oil stabilizers L-3151 (Mai Tu new high-tech materials Co., Ltd).The isocyanates is to change
Property methyl diphenylene diisocyanate, the modified diphenylmethane diisocyanate is by 4,4- diphenylmethane diisocyanates
The mass content of ester is not less than 40% methyl diphenylene diisocyanate heterogeneous mixture and polyethers A, polyethers B hybrid reactions institute
The intermediate product obtained, then the weight/mass percentage composition for the NCO being mixed to form with liquefaction methyl diphenylene diisocyanate is 29.5%
Mixture；Wherein, in methyl diphenylene diisocyanate heterogeneous mixture, except the matter of 4,4- methyl diphenylene diisocyanates
Amount content is not less than outside 40%, and remaining is methyl diphenylene diisocyanate isomery homologue；In the polyethers A, epoxy second
The mass content of alkane is 70%；The mass content of polyethers B ethylene oxides is 25%；The NCO of intermediate product quality contains
Measure as 15%.
Being used for of the present embodiment prepares mould used in above-mentioned automotive seat sponge, including former is (such as Fig. 2, Fig. 3 institute
Show) and formpiston (as shown in Figure 4), the former, which is provided with forming tank, the forming tank, is longitudinally provided with two vertical muscle 16, will
Forming tank is from left to right divided into left shaping area 15, main shaping area and right shaping area 14；Two are laterally provided with the main shaping area
Bar horizontal bar 17, forming tank is divided into from front to back preceding shaping area 12, middle shaping area 11 and aftershaping area 13.The horizontal bar 17 and vertical
The height of muscle 16 is less than the notch of forming tank.The effect of horizontal bar and vertical muscle is, in cast, the feed liquid of different densities to be isolated in
In each self-corresponding region；During foaming, the foam of the feed liquid formation of adjacent sectors covers horizontal bar and vertical muscle, on horizontal bar and vertical muscle
Fang Zidong convergences extruding, common foaming；Feed liquid itself has enough bonding forces in foaming process, makes the sponge of not same district
It is integrally connected shaping.
The preparation method of the automotive seat sponge of the present embodiment, is cold-curing molding process planning, technological process such as Fig. 5 institutes
Show, specifically include the following steps：
1) take each raw material by above-mentioned formula, in stirred tank stir mixing, be respectively provided for foaming high density feed liquid,
Midst density feed liquid and low-density feed liquid, discharging barrelling are standby；
2) modulus tool and release agent spraying, using 8 component Double-gun head ABB robot pourings and the luxuriant and rich with fragrance control system of Crouse's agate
Mould is poured into a mould, specifically as shown in fig. 6, corresponding with Fig. 2, Fig. 3 female mould structure：The mixing head of casting machine sky first is walked
To left shaping area 4., along diagram route, successively to left shaping area 4., aftershaping area 2., right shaping area 5. uniformly pour into a mould low-density
Feed liquid；After 5. right shaping area is poured, casting machine mixing head is walked to preceding shaping area 3. center along diagram route sky, changes Midst density
Feed liquid fixed point cast；After 3. preceding shaping area is poured, casting machine mixing head continues sky along diagram route and walked to middle shaping area 1.
Center, changes the fixed point cast of high density feed liquid；After 1. middle shaping area is poured, robot pouring playback completes cast；
3) after being poured, the heat-insulation pressure keeping 5min under the conditions of 40 DEG C, 0.6MPa is molded and is stripped, obtains products formed；Will be de-
Products formed after mould is handled by driving bubble machine, is specially to be compressed the volume of products formed 90%, is discharged waste gas；Then 3 are hung
My god, produce.
The automotive seat of the present embodiment, including cushion and backrest, the cushion use above-mentioned automotive seat sponge.Its
In, the rear area of the automotive seat sponge is close to the junction of cushion and backrest.
Embodiment 2
The automotive seat sponge of the present embodiment, including function of tonic chord area, function of tonic chord area both sides are respectively equipped with left support area and the right side
Support；The function of tonic chord area includes forward region, center and rear area successively from front to back；The density of the center is
65kg/m3, 25% indentation force deflection is 130N；The density of forward region is 55kg/m3, 25% indentation force deflection is 150N；Left support area,
The density of right support area and rear area is 50kg/m3, 25% indentation force deflection is 190N.
In the automotive seat sponge connecting portion of each subregion be by the position adjacent sectors raw material foaming when from
Dynamic convergence extruding, common foaming.
In the automotive seat sponge of the present embodiment, the center be by following parts by weight raw material and isocyanates by
It is 100 according to mass ratio:What 45 ratio (high density feed liquid) was made：70 parts of PPG, 30 parts of graft polyether, reaction foaming
It is 0.25 part of type amines catalyst, 0.2 part of early stage gel-type catalyst, 0.6 part of later stage gel-type catalyst, 3.3 parts of foaming agent, multiple
Close 2.0 parts of crosslinking agent, 0.3 part of stabilizer；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the forward region, which is,:55 ratio (in
Density feed liquid) be made：80 parts of PPG, 20 parts of graft polyether, 0.25 part of reaction expansion type amines catalyst, early stage are coagulated
0.5 part of glue-type catalyst, 0.6 part of later stage gel-type catalyst, 3.0 parts of foaming agent, 1.7 parts of multiple crosslinking agent, stabilizer 0.5
Part；
The left support area, right support area and rear area are raw material and isocyanates by following parts by weight according to quality
Than for 100:What 60 ratio (low-density feed liquid) was made：40 parts of PPG, 60 parts of graft polyether, reaction expansion type amine
0.2 part of catalyst, 0.4 part of early stage gel-type catalyst, 0.6 part of later stage gel-type catalyst, 3.5 parts of foaming agent, composite crosslinking
1.0 parts of agent, 0.7 part of stabilizer.
Wherein, the PPG is expoxy propane class PPG TEP-330N (the limited public affairs of Tianjin petrochemical industry
Department)；The graft polyether is expoxy propane class graft polyether POP-H45 (Jiangsu Changhua Polyurethane Technology Co., Ltd.)；It is described
It is ALLCHEM 328 (Shanghai Ye Xing Industrial Co., Ltd.s) to react expansion type amines catalyst；The early stage gel-type catalyst
For response type early stage gel-type catalyst DPA (Hensel is graceful)；The later stage gel-type catalyst is that response type later stage gel-type is urged
Agent Dabco NE-1070 (aerochemistry company)；The foaming agent is water；The multiple crosslinking agent is diethanol amine and three second
The mass ratio of hydramine is 1:1 mixture；The stabilizer is silicone oil stabilizers L-3628 (Mai Tu new high-tech materials Co., Ltd).
The isocyanates is modified diphenylmethane diisocyanate (be the same as Example 1), and wherein NCO mass content is 29.5%.
Being used for of the present embodiment prepares mould be the same as Example 1 used in above-mentioned automotive seat sponge.
The preparation method of the automotive seat sponge of the present embodiment, is cold-curing molding process planning, technological process such as Fig. 5 institutes
Show, specifically include the following steps：
1) high density feed liquid, Midst density feed liquid and the low-density feed liquid of foaming are respectively provided for by above-mentioned formula, it is standby；
2) modulus tool and release agent spraying, using 8 component Double-gun head ABB robot pourings and the luxuriant and rich with fragrance control system of Crouse's agate
Poured into a mould, specifically as shown in fig. 6, corresponding with Fig. 2, Fig. 3 female mould structure：The mixing head of casting machine sky first walk to it is left into
Type area 4., along diagram route, successively to left shaping area 4., aftershaping area 2., right shaping area 5. uniformly pour into a mould low-density feed liquid；It is right
After 5. shaping area is poured, casting machine mixing head is walked to preceding shaping area 3. center along diagram route sky, is changed Midst density feed liquid and is determined
Point cast；After 3. preceding shaping area is poured, casting machine mixing head continues sky along diagram route and walked to middle shaping area 1. center, changes
The fixed point cast of high density feed liquid；After 1. middle shaping area is poured, robot pouring playback completes cast；
3) after being poured, the heat-insulation pressure keeping 3min under the conditions of 60 DEG C, 0.6MPa is molded and is stripped, obtains products formed；Will be de-
Products formed after mould is handled by driving bubble machine, is specially to be compressed the volume of products formed 90%, is discharged waste gas；Then 3 are hung
My god, produce.
The automotive seat of the present embodiment, including cushion and backrest, the backrest use above-mentioned automotive seat sponge.Its
In, the rear area of the automotive seat sponge is close to the junction of cushion and backrest.
Embodiment 3
The automotive seat sponge of the present embodiment, including function of tonic chord area, function of tonic chord area both sides are respectively equipped with left support area and the right side
Support；The function of tonic chord area includes forward region, center and rear area successively from front to back；The density of the center is
70kg/m3, 25% indentation force deflection is 110N；The density of forward region is 50kg/m3, 25% indentation force deflection is 170N；Left support area,
The density of right support area and rear area is 45kg/m3, 25% indentation force deflection is 220N.
In the automotive seat sponge connecting portion of each subregion be by the position adjacent sectors raw material foaming when from
Dynamic convergence extruding, common foaming.
In the automotive seat sponge of the present embodiment, the center be by following parts by weight raw material and isocyanates by
It is 100 according to mass ratio:What 50 ratio (high density feed liquid) was made：60 parts of PPG, 40 parts of graft polyether, reaction foaming
It is 0.25 part of type amines catalyst, 0.3 part of early stage gel-type catalyst, 0.5 part of later stage gel-type catalyst, 3.8 parts of foaming agent, multiple
Close 1.7 parts of crosslinking agent, 0.5 part of stabilizer；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the forward region, which is,:60 ratio (in
Density feed liquid) be made：60 parts of PPG, 40 parts of graft polyether, 0.2 part of reaction expansion type amines catalyst, early stage are coagulated
0.4 part of glue-type catalyst, 0.5 part of later stage gel-type catalyst, 4.0 parts of foaming agent, 1.3 parts of multiple crosslinking agent, stabilizer 1.0
Part；
The left support area, right support area and rear area are raw material and isocyanates by following parts by weight according to quality
Than for 100:What 65 ratio (low-density feed liquid) was made：65 parts of PPG, 35 parts of graft polyether, reaction expansion type amine
0.25 part of catalyst, 0.5 part of early stage gel-type catalyst, 0.5 part of later stage gel-type catalyst, 3.2 parts of foaming agent, composite crosslinking
2.4 parts of agent, 0.5 part of stabilizer.
Wherein, the PPG be expoxy propane class PPG FA-703 (can Leah polyalcohol (Nanjing) have
Limit company)；The graft polyether is expoxy propane class graft polyether FA-3630S (Nanjing can Leah polyalcohol Co., Ltd)；Institute
It is ALLCHEM-328 (Shanghai Ye Xing Industrial Co., Ltd.s) to state reaction expansion type amines catalyst；The early stage gel-type catalysis
Agent is response type early stage gel-type catalyst Z F-130 (Hensel is graceful)；The later stage gel-type catalyst is response type later stage gel
Type catalyst Dabco NE-1070 (aerochemistry company)；The foaming agent is water；The multiple crosslinking agent be diethanol amine with
The mass ratio of triethanolamine is 1:1 mixture；The stabilizer is that silicone oil stabilizers L-5309J (steps figure new high-tech material limited
Company).The isocyanates is modified diphenylmethane diisocyanate (be the same as Example 1), and wherein NCO mass content is
29.5%.
Being used for of the present embodiment prepares mould be the same as Example 1 used in above-mentioned automotive seat sponge.
The preparation method of the automotive seat sponge of the present embodiment, is cold-curing molding process planning, technological process such as Fig. 5 institutes
Show, specifically include the following steps：
1) high density feed liquid, Midst density feed liquid and the low-density feed liquid of foaming are respectively provided for by above-mentioned formula, it is standby；
2) modulus tool and release agent spraying, using 8 component Double-gun head ABB robot pourings and the luxuriant and rich with fragrance control system of Crouse's agate
Poured into a mould, specifically as shown in fig. 6, corresponding with Fig. 2, Fig. 3 female mould structure：The mixing head of casting machine sky first walk to it is left into
Type area 4., along diagram route, successively to left shaping area 4., aftershaping area 2., right shaping area 5. uniformly pour into a mould low-density feed liquid；It is right
After 5. shaping area is poured, casting machine mixing head is walked to preceding shaping area 3. center along diagram route sky, is changed Midst density feed liquid and is determined
Point cast；After 3. preceding shaping area is poured, casting machine mixing head continues sky along diagram route and walked to middle shaping area 1. center, changes
The fixed point cast of high density feed liquid；After 1. middle shaping area is poured, robot pouring playback completes cast；
3) after being poured, the heat-insulation pressure keeping 4min under the conditions of 50 DEG C, 0.6MPa is molded and is stripped, obtains products formed；Will be de-
Products formed after mould is handled by driving bubble machine, is specially to be compressed the volume of products formed 90%, is discharged waste gas；Then 3 are hung
My god, produce.
The automotive seat of the present embodiment, including cushion and backrest, the cushion and backrest use above-mentioned automotive seat
Sponge.Wherein, the rear area of the automotive seat sponge is close to the junction of cushion and backrest.
Embodiment 4
The automotive seat sponge of the present embodiment, including function of tonic chord area, function of tonic chord area both sides are respectively equipped with left support area and the right side
Support；The function of tonic chord area includes forward region, center and rear area successively from front to back；The density of the center is
60kg/m3, 25% indentation force deflection is 150N；The density of forward region is 55kg/m3, 25% indentation force deflection is 150N；Left support area,
The density of right support area and rear area is 45kg/m3, 25% indentation force deflection is 220N.
In the automotive seat sponge connecting portion of each subregion be by the position adjacent sectors raw material foaming when from
Dynamic convergence extruding, common foaming.
In the automotive seat sponge of the present embodiment, the center be by following parts by weight raw material and isocyanates by
It is 100 according to mass ratio:What 45 ratio (high density feed liquid) was made：65 parts of PPG, 35 parts of graft polyether, reaction foaming
It is 0.2 part of type amines catalyst, 0.5 part of early stage gel-type catalyst, 0.7 part of later stage gel-type catalyst, 3.6 parts of foaming agent, multiple
Close 1.0 parts of crosslinking agent, 1.0 parts of stabilizer；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the forward region, which is,:55 ratio (in
Density feed liquid) be made：50 parts of PPG, 50 parts of graft polyether, 0.25 part of reaction expansion type amines catalyst, early stage are coagulated
0.3 part of glue-type catalyst, 0.7 part of later stage gel-type catalyst, 3.3 parts of foaming agent, 2.0 parts of multiple crosslinking agent, stabilizer 0.3
Part；
The left support area, right support area and rear area are raw material and isocyanates by following parts by weight according to quality
Than for 100:What 60 ratio (low-density feed liquid) was made：80 parts of PPG, 20 parts of graft polyether, reaction expansion type amine
0.25 part of catalyst, 0.3 part of early stage gel-type catalyst, 0.7 part of later stage gel-type catalyst, 3.7 parts of foaming agent, composite crosslinking
1.5 parts of agent, 1.0 parts of stabilizer.
Wherein, the PPG is expoxy propane class PPG GEP-330N (the limited public affairs of Shanghai Gaoqiao petrochemical industry
Department)；The graft polyether is expoxy propane class graft polyether POP-H45 (Jiangsu Changhua Polyurethane Technology Co., Ltd.)；It is described
It is ZF-10 to react expansion type amines catalyst (Hensel is graceful)；The early stage gel-type catalyst is that response type early stage gel-type is urged
Agent ZR-50 (Hensel is graceful)；The later stage gel-type catalyst is response type later stage gel-type catalyst Dabco NE-1070
(aerochemistry company)；The foaming agent is water；The multiple crosslinking agent is that the mass ratio of diethanol amine and triethanolamine is 1:1
Mixture；The stabilizer is silicone oil stabilizers L-3151 (Mai Tu new high-tech materials Co., Ltd).The isocyanates is to change
Property methyl diphenylene diisocyanate (be the same as Example 1), wherein NCO mass content be 29.5%.
Being used for of the present embodiment prepares mould be the same as Example 1 used in above-mentioned automotive seat sponge.
The preparation method of the automotive seat sponge of the present embodiment, is cold-curing molding process planning, technological process such as Fig. 5 institutes
Show, specifically include the following steps：
1) high density feed liquid, Midst density feed liquid and the low-density feed liquid of foaming are respectively provided for by above-mentioned formula, it is standby；
2) modulus tool and release agent spraying, using 8 component Double-gun head ABB robot pourings and the luxuriant and rich with fragrance control system of Crouse's agate
Poured into a mould, specifically as shown in fig. 6, corresponding with Fig. 2, Fig. 3 female mould structure：The mixing head of casting machine sky first walk to it is left into
Type area 4., along diagram route, successively to left shaping area 4., aftershaping area 2., right shaping area 5. uniformly pour into a mould low-density feed liquid；It is right
After 5. shaping area is poured, casting machine mixing head is walked to preceding shaping area 3. center along diagram route sky, is changed Midst density feed liquid and is determined
Point cast；After 3. preceding shaping area is poured, casting machine mixing head continues sky along diagram route and walked to middle shaping area 1. center, changes
The fixed point cast of high density feed liquid；After 1. middle shaping area is poured, robot pouring playback completes cast；
3) after being poured, the heat-insulation pressure keeping 5min under the conditions of 45 DEG C, 0.6MPa is molded and is stripped, obtains products formed；Will be de-
Products formed after mould is handled by driving bubble machine, is specially to be compressed the volume of products formed 90%, is discharged waste gas；Then 3 are hung
My god, produce.
The automotive seat of the present embodiment, including cushion and backrest, the cushion and backrest use above-mentioned automotive seat
Sponge.Wherein, the rear area of the automotive seat sponge is close to the junction of cushion and backrest.
Claims (7)
1. a kind of automotive seat sponge, it is characterised in that：Including function of tonic chord area, function of tonic chord area both sides be respectively equipped with left support area and
Right support area；The function of tonic chord area includes forward region, center and rear area successively from front to back；The density of the center is
60~70kg/m3, the density of forward region is 50~55kg/m3, the density in left support area, right support area and rear area for 40~
45kg/m3；25% indentation force deflection of the center is 110~150N, and 25% indentation force deflection of forward region is 170~190N,
25% indentation force deflection in left support area, right support area and rear area is 220~250N；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the automotive seat sponge, which is,:40~65 ratio
What example was made：
40~80 parts of PPG, 20~60 parts of graft polyether, 0.2~0.3 part of reaction expansion type amines catalyst, early stage are coagulated
0.2~0.5 part of glue-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, 3~4 parts of foaming agent, multiple crosslinking agent 1~2.4
Part, 0.3~1.0 part of stabilizer；
Wherein, the PPG is epoxy ethane-epoxy propane class copolyether polyalcohol；The graft polyether is epoxy
Propane class graft polyether；The multiple crosslinking agent is the mixture of diethanol amine and triethanolamine, and molecular weight is 105~150；Institute
Isocyanates is stated for modified diphenylmethane diisocyanate, wherein NCO weight/mass percentage composition is 25.5%~32.5%.
2. automotive seat sponge according to claim 1, it is characterised in that：
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the center, which is,:40~50 ratio system
Into：60~80 parts of PPG, 20~40 parts of graft polyether, 0.2~0.3 part of reaction expansion type amines catalyst, early stage
0.2~0.5 part of gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, 3~3.8 parts of foaming agent, multiple crosslinking agent 1
~2 parts, 0.3~1.0 part of stabilizer；
It by raw material and the isocyanates of following parts by weight according to mass ratio is 100 that the forward region, which is,:50~60 ratio system
Into：50~80 parts of PPG, 20~50 parts of graft polyether, 0.2~0.3 part of reaction expansion type amines catalyst, early stage
0.2~0.5 part of gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, 3~4 parts of foaming agent, multiple crosslinking agent 1~2
Part, 0.3~1.0 part of stabilizer；
The left support area, right support area and rear area are
100:What 55~65 ratio was made：40~80 parts of PPG, 20~60 parts of graft polyether, reaction expansion type amines catalysis
0.2~0.3 part of agent, 0.2~0.5 part of early stage gel-type catalyst, 0.5~0.7 part of later stage gel-type catalyst, foaming agent 3.2
~4 parts, 1~2.4 part of multiple crosslinking agent, 0.3~1.0 part of stabilizer.
3. a kind of preparation method of automotive seat sponge as claimed in claim 1, it is characterised in that：Comprise the following steps：
1) high density feed liquid, Midst density feed liquid and the low-density feed liquid of foaming are respectively provided for, it is standby；
2) low-density feed liquid is first poured into mould region corresponding with left support area, rear area, right support area successively, then will
Midst density feed liquid is poured into mould region corresponding with forward region, is then poured into high density feed liquid in mould and center
Corresponding region；
3) after being poured, heat-insulation pressure keeping is molded and is stripped, and opens bubble, produces.
4. the preparation method of automotive seat sponge according to claim 3, it is characterised in that：Step 3) in, the insulation
The temperature of pressurize shaping is 40~60 DEG C, and pressure is 0.6MPa, and the time is 3~5min.
5. the preparation method of automotive seat sponge according to claim 3, it is characterised in that：Step 3) in, it is described to open bubble
It is, by opening the processing of bubble machine, the volume of products formed 90% to be compressed the products formed after the demoulding, waste gas is discharged.
6. a kind of be used to prepare the mould used in automotive seat sponge as claimed in claim 1, it is characterised in that：Including former
And formpiston, the former, which is provided with forming tank, the forming tank, is longitudinally provided with two vertical muscle, and forming tank is from left to right divided
For left shaping area, main shaping area and right shaping area；Laterally forming tank is arrived in the past provided with two horizontal bars in the main shaping area
After be divided into preceding shaping area, middle shaping area and aftershaping area.
7. a kind of automotive seat, it is characterised in that：Including cushion and backrest, the cushion and/or backrest use claim 1 institute
The automotive seat sponge stated.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104875650B (en) * | 2015-05-29 | 2018-07-03 | 上海子元汽车零部件有限公司 | Automobile back row cushion and its method for processing and assembling |
| CN105173010A (en) * | 2015-09-25 | 2015-12-23 | 苏州标图高级座椅有限公司 | Production process of combined seat platforms for ships |
| CN105173009A (en) * | 2015-09-25 | 2015-12-23 | 苏州标图高级座椅有限公司 | Production process of ship seats |
| JP6735773B2 (en) * | 2015-12-16 | 2020-08-05 | 株式会社ブリヂストン | Pad for seat |
| KR102324763B1 (en) * | 2017-06-27 | 2021-11-10 | 현대자동차주식회사 | Manufacturing method of foam pad for vehicle seat |
| CN108530605A (en) * | 2018-04-28 | 2018-09-14 | 四川湘邻科技有限公司 | A kind of polymer and preparation method thereof of VOC dual densities automobile foaming seat |
| CN109134807A (en) * | 2018-07-24 | 2019-01-04 | 无锡豪派车业科技有限公司 | A kind of vehicle seat and preparation method thereof |
| CN110156951B (en) * | 2019-06-06 | 2021-04-27 | 浙江圣奥家具制造有限公司 | Special-hardness shaped sponge cushion and preparation method thereof |
| CN110669468B (en) * | 2019-10-23 | 2021-10-22 | 上海华化胶业有限公司 | Polyurethane adhesive composite material, polyurethane adhesive and preparation method thereof |
| CN111109936A (en) * | 2020-01-16 | 2020-05-08 | 江苏绿源新材料有限公司 | Polyurethane physiotherapy sponge fitting human body curve and production method thereof |
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| JP2002300936A (en) * | 2001-04-06 | 2002-10-15 | Inoac Corp | Seat pad for vehicle and manufacturing method therefor |
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