CN1398913A - Production process of double-hardness environment-protecting polyurethane cushion - Google Patents
Production process of double-hardness environment-protecting polyurethane cushion Download PDFInfo
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- CN1398913A CN1398913A CN 02135156 CN02135156A CN1398913A CN 1398913 A CN1398913 A CN 1398913A CN 02135156 CN02135156 CN 02135156 CN 02135156 A CN02135156 A CN 02135156A CN 1398913 A CN1398913 A CN 1398913A
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Abstract
The present invention is a production process of double-hardness environment protection polyurethane cushion. The production process uses the available polyurethane raw material and production equipment. The cushion of a double-hardness structure includes a foamed body produced through foaming with water as foaming agent at 40-55 deg.C and two blockis of filler with relatively high density in the lower sides corresponding to thights of the driver. The production process is favorable to environment protection and the cold-foamed cushion has high rebound elasticity.
Description
(1) technical field
The present invention relates to the production method of a kind of pair of hardness, environment-protecting polyurethane cushion, belong to polyurethane cushion preparation method technical field.
(2) background technology
The polyurethane foam seat cushion is an automotive seat cushioning material commonly used.The tradition seat cushion all is to make with uniform a kind of material, does not meet the reasonable pressure distribution of officer to seat cushion in theory, therefore takes comfortable inadequately.Traditional production method is the heat foamable moulding, must use freonll-11 as whipping agent in the prescription, thereby cause the atmospheric ozone damage layer.Defectives such as in addition, the heat foamable moulding also exists energy consumption bigger, and heat foamable needs 150～250 ℃ condition of cure, and the foams rebound resilience is relatively poor.
(3) summary of the invention
At the deficiencies in the prior art, the utility model provides the production method of a kind of pair of hardness, environment-friendly type, cold foaming, high resilience polyurethane foam seat cushion.
Technical assignment of the present invention is achieved by the following scheme.
The production method of polyurethane foam seat cushion of the present invention, comprise and use existing polyurethane production equipment and raw material, be characterized in, seat cushion is two rigid structure, the inherent officer's thigh of the cushion foam downside weighting material that density is higher that respectively distributes, weighting material is made by reclaiming the foaming of polyurethane foam crushed material and foam seat cushions raw materials for production, cushion foam by water as whipping agent at 40～55 ℃ of cold foamings.
Method of the present invention provides following raw material to form:
One, cushion foam prescription following (being weight part):
A composition: evenly form by following (1) to (8) are mixed in proportion:
(1) high activity polyether is 70～90 parts, 80 parts of preferred values, and molecular weight 4000～6500,
Said high activity polyether hydroxyl value (mgKOH/g) 33～37, pH value 5～7, acid number (mgKOH/g)
≤0.05，
(2) polyether is 15～30 parts, 20 parts of preferred values, and molecular weight 8000～12000,
Said polyether hydroxyl value (mgKOH/g) 25～29, pH value 6～9, acid number (mgKOH/g)
≤0.05，
(3) stannous octoate is 0.05～0.20 part, 0.10 part of preferred value,
0.10～0.50 part of (4) 1,4-diazonium two ring [2,2,2] octane, 0.30 part of preferred value,
(5) water-soluble silicon oil is 0.30～0.70 part, 0.50 part of preferred value,
(6) distilled water is 2～5 parts, 3.00 parts of preferred values,
(7) diethanolamine is 0.05～0.20 part, 0.10 part of preferred value,
(8) methylene dichloride is 2～5 parts, 3.00 parts of preferred values.
The B component:
30～60 parts of ditanes-4,4 ＇-vulcabond, 46.5 parts of preferred values.
Two, weighting material prescription following (weight part):
6～8 parts of A compositions, 7 parts of preferred values,
2～4 parts of B components, 3 parts of preferred values,
The C component reclaims 4～8 parts of urethane foam crushed materials, 6 parts of preferred values.
Concrete production method comprises the steps:
1. (1) to (8) in the cushion foam prescription is planted the mixed in proportion component A that evenly makes of component.
2. will reclaiming polyurethane foam, to be ground into diameter be that the crushed material of 0.5～5mm is as component C.
3. press the weighting material formula rate, composition A and component C is evenly mixed earlier, evenly mixed with component B then, be poured in the mould, be curing molding in 40～60 ℃ the mould in the mould temperature, make the weighting material of definite shape.
4. weighting material is put into die cavity, be fixed on the appropriate location, with the mixed liquid that composition A and component B make by the cushion foam formula rate, be cast in the mould temperature and be in 40～60 ℃ the seat cushion mould, mold closing solidifies, and makes seating product.
The raw materials used more easily buying at home of the inventive method utilizes original polyurethane production equipment to produce.Its structure is two rigid structure, and at officer's thigh downside weighting material 1 (as accompanying drawing) that density is higher that respectively distributes, weighting material is made by reclaiming the foaming of polyurethane foam crushed material and foam seat cushions raw materials for production.Foaming forms cushion foam 2 as whipping agent (seeing prescription) by water, is beneficial to environmental protection.This seat cushion can be finished curing about 50 ℃, belong to cold foaming, its rebound resilience height, and energy-saving effect is obvious.
Cushion structure novelty, the raw material that the inventive method is produced easily purchase, convenient for production, energy-conserving and environment-protective, moderate cost, ride comfort, has higher application prospect.
(4) description of drawings
Accompanying drawing is the cushion structure synoptic diagram that the inventive method is produced.Wherein 1 is weighting material, and 2 is foams.
(5) embodiment
Embodiment 1. raw materials are composed as follows:
One, cushion foam prescription following (being weight part):
A composition: evenly form by following (1) to (8) are mixed in proportion:
(1) high activity polyether is 80 parts, molecular weight 5000,
Said high activity polyether hydroxyl value (mgKOH/g) 35, pH value 6, acid number (mgKOH/g) 0.04,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TEP330N,
(2) polyether is 20 parts, molecular weight 8500,
Said polyether hydroxyl value (mgKOH/g) 27, pH value 7, acid number (mgKOH/g) 0.04,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TPOP36-28,
(3) stannous octoate is 0.10 part,
0.30 part of (4) 1,4-diazonium two ring [2,2,2] octane,
(5) water-soluble silicon oil is 0.50 part,
(6) distilled water is 3.00 parts,
(7) diethanolamine is 0.10 part,
(8) methylene dichloride is 3.00 parts.
The B component:
55 parts of ditanes-4,4 ＇-vulcabond.
Two, weighting material prescription following (weight part):
7 parts of A compositions
3 parts of B components
The C component reclaims 6 parts of urethane foam crushed materials.
Concrete production method comprises the steps:
1. (1) to (8) in the cushion foam prescription is planted the mixed in proportion composition A that evenly makes of component.
2. will reclaiming polyurethane foam, to be ground into diameter be that the crushed material of 3.5mm is as component C.
3. by weighting material formula rate in above-mentioned two, that composition A and component C is evenly mixed earlier, evenly mixed with component B then, be poured in the mould, be curing molding in 50 ℃ the mould in the mould temperature, make the weighting material of definite shape.
4. weighting material is put into die cavity, be screwed in position, with the mixed liquid that composition A and component B make by cushion foam formula rate in above-mentioned, be cast in the mould temperature and be in 50 ℃ the seat cushion mould, mold closing solidifies, and makes seating product.
The production plant temperature is generally room temperature, and optimum temps is 18～27 ℃.Embodiment 2. raw materials are composed as follows:
One, cushion foam prescription following (being weight part):
A composition: evenly form by following (1) to (8) are mixed in proportion:
(1) high activity polyether is 90 parts, molecular weight 6000,
Said high activity polyether hydroxyl value (mgKOH/g) 37, pH value 6, acid number (mgKOH/g) 0.04,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TEP330N,
(2) polyether is 28 parts, molecular weight 10000,
Said polyether hydroxyl value (mgKOH/g) 28, pH value 8, acid number (mgKOH/g) 0.04,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TPOP36-28,
(3) stannous octoate is 0.15 part,
0.48 part of (4) 1,4-diazonium two ring [2,2,2] octane,
(5) water-soluble silicon oil is 0.68 part,
(6) distilled water is 4.80 parts,
(7) diethanolamine is 0.15 part,
(8) methylene dichloride is 5.00 parts.
The B component:
Ditane-4,4 '-46.5 parts of vulcabond.
Two, weighting material prescription following (weight part):
8 parts of A compositions
4 parts of B components
The C component reclaims 7.5 parts of urethane foam crushed materials.
Concrete production method comprises the steps:
1. (1) to (8) in the cushion foam prescription is planted the mixed in proportion composition A that evenly makes of component.
2. will reclaiming polyurethane foam, to be ground into diameter be that the following crushed material of 4.5mm is as component C.
3. by weighting material formula rate in above-mentioned two, that composition A and component C is evenly mixed earlier, evenly mixed with component B then, be poured in the mould, be curing molding in 52 ℃ the mould in the mould temperature, make the weighting material of definite shape.
4. weighting material is put into die cavity, be fixed on the appropriate location, with the mixed liquid that composition A and component B make by cushion foam formula rate in above-mentioned, be cast in the mould temperature and be in 52 ℃ the seat cushion mould, mold closing solidifies, and makes seating product.Embodiment 3. is as embodiment 1 described method, and different is
Raw material is formed:
One, cushion foam prescription following (being weight part):
A composition: evenly form by following (1) to (8) are mixed in proportion:
(1) high activity polyether is 75 parts, hydroxyl value (mgKOH/g) 34, pH value 5.5, acid number (mgKOH/g)
0.45, Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TEP330N, molecular weight 4500
(2) polyether is 16 parts, hydroxyl value (mgKOH/g) 25, and pH value 6.5, acid number (mgKOH/g) 0.45,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TPOP36-28, molecular weight 12000
(3) stannous octoate is 0.06 part
0.15 part of (4) 1,4-diazonium two ring [2,2,2] octane
(5) water-soluble silicon oil is 0.35 part
(6) distilled water is 2.5 parts
(7) diethanolamine is 0.05 part
(8) methylene dichloride is 2 parts.
The B component:
35 parts of ditanes-4,4 ＇-vulcabond.
Two, weighting material prescription following (weight part):
6 parts of A compositions
2 parts of B components
The C component reclaims 4 parts of urethane foam crushed materials.
Claims (4)
1. the production method of a polyurethane foam seat cushion, comprise and use existing polyurethane production equipment and raw material, it is characterized in that, seat cushion is two rigid structure, the inherent officer's thigh of the cushion foam downside weighting material that density is higher that respectively distributes, weighting material is made by reclaiming the foaming of polyurethane foam crushed material and foam seat cushions raw materials for production, cushion foam by water as whipping agent at 40～55 ℃ of cold foamings.
2. the production method of polyurethane foam seat cushion as claimed in claim 1 is characterized in that raw material is composed as follows, is weight part:
One, cushion foam
A composition: evenly form by following (1) to (8) are mixed in proportion:
(1) high activity polyether is 70～90 parts, said high activity polyether hydroxyl value (mgKOH/g) 33～37, and pH value 5～7, acid number (mgKOH/g)≤0.05,
(2) polyether is 15～30 parts, said polyether hydroxyl value (mgKOH/g) 25～29, and pH value 6～9, acid number (mgKOH/g)≤0.05,
(3) stannous octoate is 0.05～0.20 part,
0.10～0.50 part of (4) 1,4-diazonium two ring [2,2,2] octane,
(5) water-soluble silicon oil is 0.30～0.70 part,
(6) distilled water is 2～5 parts,
(7) diethanolamine is 0.05～0.20 part,
(8) methylene dichloride is 2～5 parts,
The B component: 30～60 parts of ditanes-4,4 ＇-vulcabond,
Two, weighting material
6～8 parts of A compositions,
2～4 parts of B components,
The C component reclaims 4～8 parts of urethane foam crushed materials.
3. as the production method of claim 1 or described polyurethane foam seat cushion, it is characterized in that raw material is composed as follows, be weight part:
One, cushion foam
A composition: evenly form by following (1) to (8) are mixed in proportion:
(1) high activity polyether is 80 parts,
Said high activity polyether hydroxyl value (mgKOH/g) 35, pH value 6, acid number (mgKOH/g) 0.04,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TEP330N,
(2) polyether is 20 parts,
Said polyether hydroxyl value (mgKOH/g) 27, pH value 7, acid number (mgKOH/g) 0.04,
Tianjin Petrochemical Company the 3rd petroleum chemical plant production, model TPOP36-28,
(3) stannous octoate is 0.10 part,
0.30 part of (4) 1,4-diazonium two ring [2,2,2] octane,
(5) water-soluble silicon oil is 0.50 part,
(6) distilled water is 3.00 parts,
(7) diethanolamine is 0.10 part,
(8) methylene dichloride is 3.00 parts,
The B component:
Ditane-4,4 '-55 parts of vulcabond,
Two, weighting material
7 parts of A compositions
3 parts of B components
The C component reclaims 6 parts of urethane foam crushed materials.
4. the production method of polyurethane foam seat cushion as claimed in claim 1 or 2 is characterized in that, comprises the steps:
It is (1) each component of composition A in the cushion foam prescription is evenly mixed in proportion,
(2) will reclaim polyurethane foam be ground into diameter be the crushed material of 0.5～5mm as component C,
(3) press the weighting material formula rate, composition A and component C is evenly mixed earlier, evenly mixed with component B then, be poured in the mould, be curing molding in 40～60 ℃ the mould in the mould temperature, make the weighting material of definite shape,
(4) weighting material is put into die cavity, be fixed on the appropriate location, with the mixed liquid that composition A and component B make by the cushion foam formula rate, be cast in the mould temperature and be in 40～60 ℃ the seat cushion mould, mold closing solidifies, and makes seating product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135156 CN1398913A (en) | 2002-07-02 | 2002-07-02 | Production process of double-hardness environment-protecting polyurethane cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135156 CN1398913A (en) | 2002-07-02 | 2002-07-02 | Production process of double-hardness environment-protecting polyurethane cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1398913A true CN1398913A (en) | 2003-02-26 |
Family
ID=4748048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02135156 Pending CN1398913A (en) | 2002-07-02 | 2002-07-02 | Production process of double-hardness environment-protecting polyurethane cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1398913A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516491A (en) * | 2011-11-18 | 2012-06-27 | 宁波继峰汽车零部件股份有限公司 | Low-resilience headrest foam and preparation method thereof |
| CN110156951A (en) * | 2019-06-06 | 2019-08-23 | 浙江圣奥家具制造有限公司 | A kind of different hardness shaping sponge cushion and preparation method thereof |
| CN111055422A (en) * | 2019-11-21 | 2020-04-24 | 福州联泓交通器材有限公司 | Production and manufacturing process for filling seat sponge |
-
2002
- 2002-07-02 CN CN 02135156 patent/CN1398913A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516491A (en) * | 2011-11-18 | 2012-06-27 | 宁波继峰汽车零部件股份有限公司 | Low-resilience headrest foam and preparation method thereof |
| CN102516491B (en) * | 2011-11-18 | 2013-10-02 | 宁波继峰汽车零部件股份有限公司 | Low-resilience headrest foam and preparation method thereof |
| CN110156951A (en) * | 2019-06-06 | 2019-08-23 | 浙江圣奥家具制造有限公司 | A kind of different hardness shaping sponge cushion 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 |
| CN111055422A (en) * | 2019-11-21 | 2020-04-24 | 福州联泓交通器材有限公司 | Production and manufacturing process for filling seat sponge |
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