CN109943060A - A kind of seat soft foam sponge and preparation method thereof - Google Patents
A kind of seat soft foam sponge and preparation method thereof Download PDFInfo
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- CN109943060A CN109943060A CN201910236604.9A CN201910236604A CN109943060A CN 109943060 A CN109943060 A CN 109943060A CN 201910236604 A CN201910236604 A CN 201910236604A CN 109943060 A CN109943060 A CN 109943060A
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- 239000006260 foam Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 93
- 239000012948 isocyanate Substances 0.000 claims abstract description 84
- 239000000243 solution Substances 0.000 claims abstract description 48
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 45
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims abstract description 34
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 23
- -1 dimethylaminoethyl Chemical group 0.000 claims abstract description 22
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 18
- 229920000570 polyether Polymers 0.000 claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920002545 silicone oil Polymers 0.000 claims abstract description 15
- 238000005187 foaming Methods 0.000 claims abstract description 6
- 229920005862 polyol Polymers 0.000 claims abstract description 6
- 150000003077 polyols Chemical class 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 91
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 14
- 150000002334 glycols Chemical class 0.000 claims description 12
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- 230000001476 alcoholic effect Effects 0.000 claims description 8
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- GTEXIOINCJRBIO-UHFFFAOYSA-N 2-[2-(dimethylamino)ethoxy]-n,n-dimethylethanamine Chemical class CN(C)CCOCCN(C)C GTEXIOINCJRBIO-UHFFFAOYSA-N 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000002585 base Substances 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 claims 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004135 Bone phosphate Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000012974 tin catalyst Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
A kind of preparation method of the soft foam sponge of seat, includes the following steps: step (1): isocyanate component and toluene diisocyanate component being mixed according to the proportion, stirred evenly, obtain black material；Polyether polyol, triethylene diamine solution, double dimethylaminoethyl ethereal solutions, silicone oil, triethanolamine, fire retardant, water are mixed according to the proportion, stirs evenly, obtains white material；Step (2): preheated mold is so that die table is constant at 50~55 DEG C, backrest brandreth is integrally totally placed in mold in advance, and the both ends of brandreth are completely disposed at mould inside, and the marginal position for placing brandreth both ends to mould inside is sealed, and then injects black material and white material in mold according to the proportion；Step (3): after black material and white material injection mold, die cover is covered, seal rubber is filled between mold and die cover, locks clip, and be sealed to mold；Step (4): the pressure in control mold is maintained at 1.5Pa, by foaming in 3~5 minutes, then opens mold, obtains soft foam sponge.
Description
Technical field
The present invention relates to the technical fields of sponge production, more particularly, to a kind of seat soft foam sponge and its preparation side
Method.
Background technique
Currently used sponge is divided into high-density sponge, middle density foam, three kinds of low-density sponge by structure.It is wherein highly dense
The sponge of degree, Kong Duo is very full, has preferable gas permeability and elasticity；Sponge product is gradually popularized in people's lives,
The household objects such as seat, sofa, the mattress for wherein thering is sponge to make.
But the soft foam sponge of existing seat, in process when, often need backrest brandreth being put into mold,
Foaming raw material is then perfused into mold again, so that sponge generates by pedestal of backrest brandreth, so as to subsequent seat
Chair production.But in the actual production process, since the both sides of backrest brandreth reach outside mold, so that sponge mold seals
Property is poor, and the pressure and temperature in mold is unstable, so that the sponge products surface that sponge mold is produced is not smooth enough, even
Some products will appear honeycombing, and so as to cause the appearance of waste product and substandard products, staff needs backrest iron again
Frame is dismantled with sponge, and clean it up could be reused, and reduces production efficiency.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of seat preparation sides of soft foam sponge
Method has the advantages that improve yields to improve production efficiency.
Technical purpose of the invention is achieved by following technical solution:
A kind of preparation method of the soft foam sponge of seat, characterized by the following steps:
Step (1): isocyanate component and toluene diisocyanate component being mixed according to the proportion, stirred evenly, and obtained
Black material；
By polyether polyol, triethylene diamine solution, double dimethylaminoethyl ethereal solutions, silicone oil, triethanolamine, fire-retardant
Agent, water mix according to the proportion, stir evenly, and obtain white material；
Step (2): preheated mold is so that die table is constant at 50~55 DEG C, in advance all by backrest brandreth entirety
It is placed in mold, and the both ends of brandreth are completely disposed at mould inside, and places the marginal position at brandreth both ends to mould inside
It is sealed, then injects black material and white material in mold according to the proportion；
Step (3): after black material and white material injection mold, die cover is covered, the filling sealing rubber between mold and die cover
Glue, and locked using clip, and mold is sealed；
Step (4): the pressure in control mold is maintained at 1.5Pa, by foaming in 3~5 minutes, then opens mold,
Obtain soft foam sponge；
The seal rubber is thermoplastic polyurethane elastomer rubber.
The raw material of the soft foam sponge includes black material and white material, and the weight ratio of the black material is 30~35 parts, described white
The parts by weight of material are 65~70 parts, and the sum of the black material and the parts by weight of white material are 100 parts；
The black material includes isocyanate component and toluene diisocyanate component, the isocyanate component and toluene two
Isocyanate component is 3 according to weight ratio: the ratio setting of (1.5~2)；
The white material is made of following parts by weight:
95~105 parts of polyether polyol；
0.7~1.5 part of triethylene diamine solution；
0.1~0.3 part of double dimethylaminoethyl ethereal solutions；
0.5~1.5 part of silicone oil；
1.0~1.5 parts of triethanolamine；
5~7 parts of fire retardant；
3~4 parts of water.
The isocyanate component is mixed by isocyanates and methyl diphenylene diisocyanate, and it is at 25 DEG C
Viscosity be 150~250mPas.
The toluene diisocyanate component by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI) compounding and
At, 2, the 4- toluene di-isocyanate(TDI) and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight.
The polyether polyol is polyether Glycols or polyether-tribasic alcohol.
By adopting the above technical scheme, thermoplastic polyurethane elastomer rubbery intensity is big, elasticity is good, has good environment resistant
Energy and wear-resisting property, glass transition temperature is higher than 100 DEG C, and its brittleness temperature is lower than -62 DEG C, and soft foam sponge is production temperature
Degree concentrates on 50 DEG C~55 DEG C, therefore thermoplastic polyurethane elastomer rubber is while guaranteeing mold leakproofness, service life
It is longer；
After mold fills seal rubber material, the temperature and pressure of mould inside is more stable, under stable condition
The soft foam sponge produced greatly reduces the generation of honeycombing, reduces the generation of defective products and substandard products；And sponge
It is formed directly on backrest brandreth, is being installed after largely being formed compared to sponge, saved manufacturing procedure, and sponge
Surface it is more smooth, staff is without repairing sponge products surface, the pollution so as to avoid glue to product,
Substantially increase production efficiency.
Preferably, the raw material of the soft foam sponge includes 67 parts of 33 parts of black material and white material；
The black material is set by the isocyanate component and toluene diisocyanate component according to the ratio that weight ratio is 3: 2
It sets；
The white material is made of following parts by weight:
100 parts of polyether Glycols；
1.2 parts of triethylene diamine solution；
0.1 part of double dimethylaminoethyl ethereal solutions；
0.9 part of silicone oil；
1.2 parts of triethanolamine；
6 parts of fire retardant；
3.6 parts of water.
The fire retardant includes one of zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
Or it a variety of mixes.
The triethylene diamine solution is the alcoholic solution that mass fraction is 33%.
The double dimethylaminoethyl ethers and mass fraction that double dimethylaminoethyl ethereal solutions are 70% by mass fraction
It is compounded for 30% dipropylene glycol.
In conclusion advantageous effects of the invention are as follows:
Soft foam sponge provided by the present invention will be integrally put into mold, iron in mold after the preheating of backrest brandreth
It is sealed processing between the both ends and mold of frame, and also to use thermoplastic polyurethane elastomer rubber to carry out close for mold itself
Envelope, effectively increases sealing performance, it is ensured that sponge carries out foam production in the environment of sealing, and the environment of sealing reduces raw material
Loss, while making the working condition of mould inside more stably and controllable, so that the surface of soft foam sponge is more smooth, subtract
The generation for having lacked honeycombing, improves yields, so that yields is maintained at 95% or more, and reaches as high as being 100%, into
And improve production efficiency.
Since raw material is poured in sealed mold by this preparation method, sealed mold is compared to original needed for blow-by mold
Material loss reduces 20%, reduces cost depletions.
Specific embodiment
It is following that invention is further described in detail in conjunction with the embodiments.
Embodiment one:
A kind of preparation method of the soft foam sponge of seat, characterized by the following steps:
Step (1): isocyanate component and toluene diisocyanate component being mixed according to the proportion, stirred evenly, and obtained
Black material；
By polyether Glycols, triethylene diamine solution, double dimethylaminoethyl ethereal solutions, silicone oil, triethanolamine, fire-retardant
Agent, water mix according to the proportion, stir evenly, and obtain white material；
Step (2): preheated mold is so that die table is constant at 50~55 DEG C, in advance all by backrest brandreth entirety
It is placed in mold, and the both ends of brandreth are completely disposed at mould inside, and places the marginal position at brandreth both ends to mould inside
It is sealed, then injects black material and white material in mold according to the proportion；
Step (3): after black material and white material injection mold, die cover is covered, thermoplasticity is filled between mold and die cover
Elastic polyurethane body rubber, and locked using clip, and mold is sealed；
Step (4): the pressure in control mold is maintained at 1.5Pa, by foaming in 5 minutes, then opens mold, obtains
Soft foam sponge.
A kind of soft foam sponge of seat, raw material include black material and white material, and the parts by weight of black material are 33 parts, the weight of white material
Measuring part is 67 parts；
Black material includes isocyanate component and toluene diisocyanate component, isocyanate component and toluene di-isocyanate(TDI)
The ratio setting that component is 3: 2 according to weight ratio；
Isocyanate component is mixed by isocyanates and methyl diphenylene diisocyanate, and isocyanate component exists
Its viscosity is 200mPas at 25 DEG C；
Toluene diisocyanate component is compounded by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI), and
2,4- toluene di-isocyanate(TDI)s and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight；
White material is made of following parts by weight:
100 parts of polyether Glycols；
1.2 parts of triethylene diamine solution, which is the alcoholic solution that mass fraction is 33%；
0.1 part of double dimethylaminoethyl ethereal solutions, pair which is 70% by mass fraction
Dimethylaminoethyl ethereal solution is compounded with the dipropylene glycol that mass fraction is 30%.；
0.9 part of silicone oil；
1.2 parts of triethanolamine；
6 parts of fire retardant, which includes zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
One of or a variety of compound；
3.6 parts of water.
Embodiment two:
Preparation method of the preparation method of soft foam sponge with above-mentioned the embodiment described one in the present embodiment.
A kind of soft foam sponge of seat, raw material include black material and white material, and the parts by weight of black material are 33 parts, the weight of white material
Measuring part is 67 parts；
Black material includes isocyanate component and toluene diisocyanate component, isocyanate component and toluene di-isocyanate(TDI)
The ratio setting that component is 3: 1.5 according to weight ratio；
Isocyanate component is mixed by isocyanates and methyl diphenylene diisocyanate, and isocyanate component exists
Its viscosity is 200mPas at 25 DEG C；
Toluene diisocyanate component is compounded by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI), and
2,4- toluene di-isocyanate(TDI)s and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight；
White material is made of following parts by weight:
100 parts of polyether Glycols；
1.2 parts of triethylene diamine solution, which is the alcoholic solution that mass fraction is 33%；
0.1 part of double dimethylaminoethyl ethereal solutions, pair which is 70% by mass fraction
Dimethylaminoethyl ethereal solution is compounded with the dipropylene glycol that mass fraction is 30%.；
0.5 part of silicone oil；
1 part of triethanolamine；
6 parts of fire retardant, which includes zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
One of or a variety of compound；
3 parts of water.
Embodiment three:
Preparation method of the preparation method of soft foam sponge with above-mentioned the embodiment described one in the present embodiment.
A kind of soft foam sponge of seat, raw material include black material and white material, and the parts by weight of black material are 30 parts, the weight of white material
Measuring part is 70 parts；
Black material includes isocyanate component and toluene diisocyanate component, isocyanate component and toluene di-isocyanate(TDI)
The ratio setting that component is 3: 2 according to weight ratio；
Isocyanate component is mixed by isocyanates and methyl diphenylene diisocyanate, and isocyanate component exists
Its viscosity is 200mPas at 25 DEG C；
Toluene diisocyanate component is compounded by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI), and
2,4- toluene di-isocyanate(TDI)s and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight；
White material is made of following parts by weight:
95 parts of polyether Glycols；
0.7 part of triethylene diamine solution, which is the alcoholic solution that mass fraction is 33%；
0.2 part of double dimethylaminoethyl ethereal solutions, pair which is 70% by mass fraction
Dimethylaminoethyl ethereal solution is compounded with the dipropylene glycol that mass fraction is 30%.；
0.5 part of silicone oil；
1 part of triethanolamine；
5 parts of fire retardant, which includes zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
One of or a variety of compound；
3.2 parts of water.
Example IV:
Preparation method of the preparation method of soft foam sponge with above-mentioned the embodiment described one in the present embodiment.
A kind of soft foam sponge of seat, raw material include black material and white material, and the parts by weight of black material are 30 parts, the weight of white material
Measuring part is 70 parts；
Black material includes isocyanate component and toluene diisocyanate component, isocyanate component and toluene di-isocyanate(TDI)
The ratio setting that component is 3: 1.5 according to weight ratio；
Isocyanate component is mixed by isocyanates and methyl diphenylene diisocyanate, and isocyanate component exists
Its viscosity is 200mPas at 25 DEG C；
Toluene diisocyanate component is compounded by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI), and
2,4- toluene di-isocyanate(TDI)s and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight；
White material is made of following parts by weight:
105 parts of polyether Glycols；
1.5 parts of triethylene diamine solution, which is the alcoholic solution that mass fraction is 33%；
0.2 part of double dimethylaminoethyl ethereal solutions, pair which is 70% by mass fraction
Dimethylaminoethyl ethereal solution is compounded with the dipropylene glycol that mass fraction is 30%.；
15 parts of silicone oil；
1.2 parts of triethanolamine；
5 parts of fire retardant, which includes zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
One of or a variety of compound；
3.4 parts of water.
Embodiment five:
Preparation method of the preparation method of soft foam sponge with above-mentioned the embodiment described one in the present embodiment.
A kind of soft foam sponge of seat, raw material include black material and white material, and black material and white material are 35: 65 according to weight ratio
Ratio setting；
Black material includes isocyanate component and toluene diisocyanate component, isocyanate component and toluene di-isocyanate(TDI)
The ratio setting that component is 3: 2 according to weight ratio；
Isocyanate component is compounded by isocyanates with methyl diphenylene diisocyanate, and isocyanate component
Viscosity is 250mPas；
Toluene diisocyanate component is compounded by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI), and
2,4- toluene di-isocyanate(TDI)s and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight；
White material is made of following parts by weight:
95 parts of polyether Glycols；
1.5 parts of triethylene diamine solution, which is the alcoholic solution that mass fraction is 33%；
0.3 part of double dimethylaminoethyl ethereal solutions, pair which is 70% by mass fraction
Dimethylaminoethyl ethereal solution is compounded with the dipropylene glycol that mass fraction is 30%.；
1.5 parts of silicone oil；
1.5 parts of triethanolamine；
7 parts of fire retardant, which includes zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
One of or a variety of compound；
3.8 parts of water.
Embodiment six:
Preparation method of the preparation method of soft foam sponge with above-mentioned the embodiment described one in the present embodiment.
A kind of soft foam sponge of seat, raw material include black material and white material, and the parts by weight of black material are 35 parts, the weight of white material
Measuring part is 65 parts；
Black material includes isocyanate component and toluene diisocyanate component, isocyanate component and toluene di-isocyanate(TDI)
The ratio setting that component is 3: 1.5 according to weight ratio；
Isocyanate component is mixed by isocyanates and methyl diphenylene diisocyanate, and isocyanate component exists
Its viscosity is 200mPas at 25 DEG C；
Toluene diisocyanate component is compounded by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI), and
2,4- toluene di-isocyanate(TDI)s and 2, the ratio setting that 6- toluene di-isocyanate(TDI) is 4: 1 according to parts by weight；
White material is made of following parts by weight:
105 parts of polyether Glycols；
0.7 part of triethylene diamine solution, which is the alcoholic solution that mass fraction is 33%；
0.3 part of double dimethylaminoethyl ethereal solutions, pair which is 70% by mass fraction
Dimethylaminoethyl ethereal solution is compounded with the dipropylene glycol that mass fraction is 30%.；
0.9 part of silicone oil；
1.5 parts of triethanolamine；
7 parts of fire retardant, which includes zinc borate, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon
One of or a variety of compound；
4 parts of water.
Comparative example one:
The sponge raw material component of embodiment one kind is used in this comparative example, preparation method is as follows:
Step (1): isocyanate component and toluene diisocyanate component being mixed according to the proportion, stirred evenly, and obtained
Black material；
By polyether Glycols, triethylene diamine solution, double dimethylaminoethyl ethereal solutions, silicone oil, triethanolamine, fire-retardant
Agent, water mix according to the proportion, stir evenly, and obtain white material；
Step (2): the middle section of backrest brandreth is placed on so that die table is constant at 55 DEG C by preheated mold
In mold, and the both ends of brandreth reach outside mold, then inject black material and white material in mold according to the proportion；
Step (3): after black material and white material injection mold, die cover is covered, does not do other processing；
Step (4): the pressure in control mold is maintained at 1.5Pa, by foaming in 5 minutes, then opens mold, obtains
Soft foam sponge.
Comparative example two:
Preparation method of the preparation method of soft foam sponge with above-mentioned the embodiment described one in this comparative example.
This comparative example uses the sponge liner of notification number CN103908103B, which foamed by following components
It forms:
100 parts by weight of polyether Glycols；
85 parts by weight of toluene di-isocyanate(TDI)；
0.1 parts by weight of tin catalyst；
0.1 parts by weight of amine catalyst；
0.8 parts by weight of water；
0.5 parts by weight of silicon oil surface activity agent.
The soft foam sponge material component of table 1 and content table
Standard according to QB/T 2080-1995 " high resilience flexible polyurethane foam plastics ", it is known that, 21 DEG C of temperature~
Under conditions of 25 DEG C and relative humidity 45%~55%, qualified soft foam sponge should meet condition as shown in table 2:
The qualified sponge standard scale of table 2
| Detection project | Apparent density | Tensile strength | Elongation at break | 75% compression set | Rebound degree | Tearing strength |
| Unit | kg/m3 | Kpa | % | % | % | N/cm |
| Standard value | ≥40 | ≥80 | ≥100 | ≤10 | ≥60 | ≥1.75 |
According to examination criteria shown in table 2, by soft foam sponge prepared by the embodiment of the present invention one to embodiment six
With sponge prepared by comparative example 1 and comparative example 2, obtain duplication of production for 100 times, and the sponge produced every time is detected respectively
The results are shown in Table 3 for yields:
3 sponge yields table of table
| Experiment numbers | Yields |
| Embodiment one | 100% |
| Embodiment two | 98% |
| Embodiment three | 99% |
| Example IV | 97% |
| Embodiment five | 99% |
| Embodiment six | 98% |
| Comparative example one | 80% |
| Comparative example two | 90% |
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of seat preparation method of soft foam sponge, characterized by the following steps:
Step (1): isocyanate component and toluene diisocyanate component being mixed according to the proportion, stirred evenly, and obtain black material；
By polyether polyol, triethylene diamine solution, double dimethylaminoethyl ethereal solutions, silicone oil, triethanolamine, fire retardant, water
It mixes, stirs evenly according to the proportion, obtain white material；
Step (2): preheated mold is so that die table is constant at 50~55 DEG C, in advance by the whole all placements of backrest brandreth
In mold, and the both ends of brandreth are completely disposed at mould inside, and the marginal position for placing brandreth both ends to mould inside carries out
Sealing, then injects black material and white material in mold according to the proportion；
Step (3): after black material and white material injection mold, covering die cover, seal rubber filled between mold and die cover, and
It is locked using clip, and mold is sealed；
Step (4): the pressure in control mold is maintained at 1.5Pa, by foaming in 3~5 minutes, then opens mold, obtains
Soft foam sponge；
The raw material of the soft foam sponge includes black material and white material, and the weight ratio of the black material is 30~35 parts, the white material
Parts by weight are 65~70 parts, and the sum of the black material and the parts by weight of white material are 100 parts；
The black material includes isocyanate component and toluene diisocyanate component, the isocyanate component and toluene diisocyanate
Acid esters component according to weight ratio be 3:(1.5~2) ratio setting；
The white material is made of following parts by weight:
95~105 parts of polyether polyol；
0.7~1.5 part of triethylene diamine solution；
0.1~0.3 part of double dimethylaminoethyl ethereal solutions；
0.5~1.5 part of silicone oil；
1.0~1.5 parts of triethanolamine；
5~7 parts of fire retardant；
3~4 parts of water.
2. a kind of preparation method of the soft foam sponge of seat according to claim 1, it is characterised in that: the sealing rubber
Glue is thermoplastic polyurethane elastomer rubber.
3. a kind of soft foam sponge of seat according to claim 1, it is characterised in that: the isocyanate component is by different
Cyanate is mixed with methyl diphenylene diisocyanate, and its viscosity at 25 DEG C is 150~250mPa s.
4. a kind of soft foam sponge of seat according to claim 1, it is characterised in that: the toluene di-isocyanate(TDI) group
Dividing by 2,4- toluene di-isocyanate(TDI) and 2,6- toluene di-isocyanate(TDI) compounds, 2, the 4- toluene di-isocyanate(TDI) and 2,
The ratio setting that 6- toluene di-isocyanate(TDI) is 4:1 according to parts by weight.
5. a kind of soft foam sponge of seat according to claim 1, it is characterised in that: the raw material of the soft foam sponge
Including 67 parts of 33 parts of black material and white material；
The ratio setting that the black material is 3:2 according to weight ratio by the isocyanate component and toluene diisocyanate component；
The white material is made of following parts by weight:
100 parts of polyether Glycols；
1.2 parts of triethylene diamine solution；
0.1 part of double dimethylaminoethyl ethereal solutions；
0.9 part of silicone oil；
1.2 parts of triethanolamine；
6 parts of fire retardant；
3.6 parts of water.
6. a kind of soft foam sponge of seat according to claim 1 or 6, it is characterised in that: the fire retardant includes boron
One of sour zinc, zinc oxide, iron oxide, red phosphorus, phosphate, carbonate and organosilicon a variety of mix.
7. a kind of soft foam sponge of seat according to claim 1 or 6, it is characterised in that: the triethylene diamine is molten
Liquid is the alcoholic solution that mass fraction is 33%.
8. a kind of soft foam sponge of seat according to claim 1 or 6, it is characterised in that: double dimethylamino second
Base ethereal solution compounded by double dimethylaminoethyl ethers that mass fraction is 70% with the dipropylene glycol that mass fraction is 30% and
At.
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