CN114106287A - Low-VOC (volatile organic compound) molded high-resilience polyurethane and preparation method thereof - Google Patents
Low-VOC (volatile organic compound) molded high-resilience polyurethane and preparation method thereof Download PDFInfo
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- CN114106287A CN114106287A CN202010904634.5A CN202010904634A CN114106287A CN 114106287 A CN114106287 A CN 114106287A CN 202010904634 A CN202010904634 A CN 202010904634A CN 114106287 A CN114106287 A CN 114106287A
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 20
- 239000004814 polyurethane Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000012855 volatile organic compound Substances 0.000 title description 32
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 25
- 229920000570 polyether Polymers 0.000 claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 10
- 239000012948 isocyanate Substances 0.000 claims abstract description 8
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- -1 2-hydroxypropyl Chemical group 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical group OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- IUCJMVBFZDHPDX-UHFFFAOYSA-N tretamine Chemical compound C1CN1C1=NC(N2CC2)=NC(N2CC2)=N1 IUCJMVBFZDHPDX-UHFFFAOYSA-N 0.000 claims 1
- 229950001353 tretamine Drugs 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007373 indentation Methods 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 241000146989 Engraulis japonicus Species 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/1825—Catalysts containing secondary or tertiary amines or salts thereof having hydroxy or primary amino groups
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3275—Hydroxyamines containing two hydroxy groups
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3278—Hydroxyamines containing at least three hydroxy groups
- C08G18/3281—Hydroxyamines containing at least three hydroxy groups containing three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- 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
- C08G2101/00—Manufacture of cellular products
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a low VOC molding high-resilience polyurethane and a preparation method thereof. The raw materials of the invention comprise, by weight, 20-95 parts of high resilience basic polyether, 5-80 parts of high resilience graft polyether, 0.3-1.5 parts of cross-linking agent, 0.2-0.9 part of catalyst A (6-dimethylamino-1-ethanol), 0.1-0.6 part of catalyst B (N, N dimethyl-N, N, -bis (2-hydroxypropyl) -1, 3-propane diamine), 0.3-1 part of surfactant, 1-5 parts of pore-forming agent and 39-60 parts of isocyanate. The molding polyurethane prepared by the raw material proportion and the preparation method has the characteristics of good rebound resilience, excellent mechanical point performance, low odor and low VOC, the VOC content in the product meets the national standard, the adopted cross-linking agent has the hole opening effect, and the high-resilience molding prepared by the cross-linking agent has longer initiation time and deflation time, does not have inflation, greatly improves the hardness, the rebound and the tensile strength, and has smaller indentation degree.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to low-VOC (volatile organic compound) molding high-resilience polyurethane and a preparation method thereof.
Background
The high-resilience polyurethane foam material has excellent mechanical properties (high resilience and low hysteresis loss) and a higher compression load ratio (sag factor), so that the high-resilience polyurethane foam material has remarkable sitting comfort, excellent fatigue resistance and good air permeability, and is widely applied to various motor vehicle seats such as automobiles, motorcycles, trains, airplanes and the like.
Along with the improvement of living standard of people, people pay more and more attention to the quality of air in the car. The excessive VOC content can cause the maladjustment of the immune level of the organism, influence the function of the nervous system, cause the problems of dizziness, headache, nausea, hypomnesis and the like, and seriously influence the health of human beings. The national standard for VOC is getting tighter and tighter, and the punishment is getting bigger and bigger. The demand of host factories for foamed VOC is increasing. How to reduce the VOC content in the foam is an urgent problem to be solved by the polyurethane industry.
Disclosure of Invention
The invention aims to provide a low-VOC molded high-resilience polyurethane and a preparation method thereof.
In order to achieve the above object, the present invention provides a low VOC molded high resilience polyurethane, which is characterized in that: the raw materials are calculated according to the weight fraction ratio: 20-95 parts of high-resilience basic polyether, 5-80 parts of high-resilience graft polyether, 0.3-1.5 parts of cross-linking agent, 0.2-0.9 part of catalyst A, 0.1-0.6 part of catalyst B, 0.3-1 part of surfactant, 1-5 parts of pore-forming agent and 39-60 parts of isocyanate; the catalyst A is 6-dimethylamino-1-ethanol; the catalyst B is (N, N dimethyl-N, N, -bis (2-hydroxypropyl) -1, 3-propane diamine).
The cross-linking agent is diethanolamine or triethanolamine.
The cell opener polyoxyalkylene-polysiloxane copolymer.
The surfactant is silicone oil.
The isocyanate is one or a combination of basf's CW5010, CW5013 or bayer MT 20.
The preparation method of the low VOC molding high-resilience polyurethane comprises the following steps: the raw materials comprise the following components in parts by weight:
1) preparing a polyether composite material: adding 20-95 parts of high resilience basic polyether, 5-80 parts of high resilience graft polyether, 0.2-0.9 part of catalyst A, 0.1-0.9 part of catalyst B, 0.3-1.5 parts of cross-linking agent, 1-5 parts of pore-forming agent, 0.3-1 part of surfactant and 2-5 parts of water into a stirrer, uniformly mixing, wherein the mixing rotation degree is 100-1000r/min, the mixing time is 30-60min, and the mixed polyether composite material is used as a first component for standby;
2) and (3) reacting 39-60 parts of isocyanate serving as a group II with a spare group I, wherein the internal pressure of the reaction cavity is 1.5-5bar, the surface temperature of the mold is 50-70 ℃, the temperature of the raw material is 20-35 ℃, and the low-VOC molded high-resilience sponge is obtained after complete reaction.
The invention relates to a low VOC molding high-resilience polyurethane and a preparation method thereof, and the low VOC molding high-resilience polyurethane has the following beneficial effects:
the molded polyurethane prepared by the method has the characteristics of good rebound resilience, excellent mechanical point performance, low odor and low VOC, and the VOC content in the product meets the national standard;
the adopted cross-linking agent has the effect of opening pores, and the high-resilience molding prepared by the cross-linking agent has longer rise time and deflation time, no inflation, greatly improved hardness, resilience and tensile strength and small indentation degree.
Detailed Description
Example 1
The invention relates to a preparation method of low VOC molding high-resilience polyurethane, which comprises the following steps of firstly mixing high-resilience basic polyether in proportion according to the parts by weight: KE-81084 parts, high resilience graft polyether: 16 parts of KE-880S, 0.8 part of DEOA, 0.8 part of catalyst A, 150.04 parts of LE and 1030.2 parts of LED, 1300.5 parts of catalyst B, Z and surfactant: UA-8820LV 0.16+ UA-8823LV0.54, cell opener: FA 1031.8 parts, water: 3.8 parts of the mixture is added into a mixing tank; then stirring for 30min at the rotating speed of 500r/min, and taking the uniformly mixed raw materials as a group of polyether combined materials;
when the temperature of a group of polyether combined materials is 20-35 ℃, uniformly mixing the mixed polyether combined materials with isocyanate CW-5010 according to the mass ratio of 100:39-60, and injecting the mixture into an automobile seat mold, wherein the mold temperature is 50-70 ℃, the mold closing pressure is 1.0-5.0bar, and the product can be taken out after 3-5min, so that the low-VOC seat foam is obtained, and the obtained low-VOC seat foam VOC detection standard is as shown in the following table one.
Table one: the product has the characteristic of low VOC content. The VOC detection standard is MS300-55 (2016).
Example 2
The invention relates to a preparation method of low VOC molding high-resilience polyurethane, which comprises the following steps; the raw materials comprise the following components in parts by weight:
firstly, proportionally mixing high-resilience basic polyether: KE-81080 parts, high resilience graft polyether: KE-880S 20 parts, cross-linking agent: 0.5 part of DEOA, catalyst A: LE 150.06 parts + LED 1030.4 parts, catalyst B: z1300.66 parts, surfactant: 0.2 part of UA-8820LV + 0.6 part of UA-8823LV, and a pore-opening agent: 2.2 parts, water: 2.5 parts of the mixture is added into a mixing tank and then stirred for 30min at the rotating speed of 500 r/min; taking the uniformly mixed raw materials as a group of head materials;
when the temperature of a group of the Engraulis japonicus Temminck et Schlegel combined material is 20-35 ℃, uniformly mixing the mixed group of the Engraulis japonicus Temminck et Schlegel combined material and MT20 according to the mass ratio of 100:39-60, and injecting into an automobile seat mold; the temperature of the mould is 50-70 ℃, the mould closing pressure of the mould is 1.0-5.0bar, and the product can be taken out after the mould is opened for 3-5min, so that the low VOC seat foam is obtained; the product has the characteristic of low VOC content, and the detection standard table is shown as table two.
Table two: the VOC detection standard is MS300-55 (2016).
Example 3
The invention discloses a preparation method of low VOC molding high-resilience polyurethane, which comprises the following steps: the raw materials comprise the following components in parts by weight:
firstly, proportionally mixing high-resilience basic polyether: KE-81040 parts, high resilience graft polyether: KE-880S 60 parts, cross-linking agent: 0.48 part of DEOA, catalyst A: 1030.18 parts of LED, catalyst B: z1300.66 parts, surfactant: 0.22 part of UA-8820LV + 0.58 part of UA-8823LV, and water: 3.9 parts of the mixture is added into a mixing tank and then stirred for 30min at the rotating speed of 500 r/min; using the uniformly mixed raw materials as a group of polyether combined materials;
when the temperature of the raw materials is 20-35 ℃, uniformly mixing the mixed polyether composite material with MT20 according to the mass ratio of 100:39-60, and injecting into an automobile seat mold; the temperature of the mould is 50-70 ℃, the mould closing pressure of the mould is 1.0-5.0bar, and the product can be taken out after the mould is opened for 3-5min, so that the low VOC seat foam is obtained; the product has the characteristic of low VOC, and is detected by a standard table, such as the third table.
Table three: VOC detection Standard MS300-55 (2016).
Claims (6)
1. The low VOC molding high resilience polyurethane is characterized in that the raw materials comprise, by weight, 20-95 parts of high resilience base polyether, 5-80 parts of high resilience graft polyether, 0.3-1.5 parts of cross-linking agent, 0.2-0.9 part of catalyst A, 0.1-0.6 part of catalyst B, 0.3-1 part of surfactant, 1-5 parts of pore-forming agent and 39-60 parts of isocyanate; the catalyst A is 6-dimethylamino-1-ethanol; the catalyst B is (N, N dimethyl-N, N, -bis (2-hydroxypropyl) -1, 3-propane diamine).
2. The low VOC molded high resilience polyurethane of claim 1, wherein said cross-linking agent is diethanolamine or triethylenemelamine.
3. The low VOC molded high resilience polyurethane of claim 1, wherein said cell opener is a polyoxyalkylene-polysiloxane copolymer.
4. The low VOC molded high resilience polyurethane of claim 1, wherein said surfactant is a silicone oil.
5. The low VOC molded high resilience polyurethane of claim 1, wherein said isocyanate is one or a combination of Pasteur CW5010, CW5013 or Bayer MT 20.
6. The method of claim 1, wherein the raw materials are in parts by weight
1) Preparing a polyether composite material, namely adding 20-95 parts of high resilience basic polyether, 5-80 parts of high resilience graft polyether, 0.2-0.9 part of catalyst A, 0.1-0.9 part of catalyst B, 0.3-1.5 parts of cross-linking agent, 1-5 parts of pore-forming agent, 0.3-1 part of surfactant and 2-5 parts of water into a stirrer for uniform mixing, wherein the mixing rotation degree is 100 and 1000r/min, the mixing time is 30-60min, and the mixed polyether composite material is used as a group I for later use;
2) and (3) reacting 39-60 parts of isocyanate serving as a group II with a spare group I, wherein the internal pressure of the reaction cavity is 1.5-5bar, the surface temperature of the mold is 50-70 ℃, the temperature of the raw material is 20-35 ℃, and the low-VOC molded high-resilience sponge is obtained after complete reaction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904634.5A CN114106287A (en) | 2020-09-01 | 2020-09-01 | Low-VOC (volatile organic compound) molded high-resilience polyurethane and preparation method thereof |
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| CN202010904634.5A CN114106287A (en) | 2020-09-01 | 2020-09-01 | Low-VOC (volatile organic compound) molded high-resilience polyurethane and preparation method thereof |
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|---|---|---|---|---|
| US20040152796A1 (en) * | 2003-01-31 | 2004-08-05 | Crompton Corporation | Process for preparing polyurethane foams having reduced VOC emissions |
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| CN107082865A (en) * | 2017-05-23 | 2017-08-22 | 长春富维安道拓汽车饰件系统有限公司 | A kind of odor type high-rebound polyurethane moulded foam and preparation method thereof |
| CN108559051A (en) * | 2018-05-16 | 2018-09-21 | 宁波拓普集团股份有限公司 | A kind of zero VOC high resilience polyurethane foam and preparation method thereof |
| CN109320682A (en) * | 2018-09-30 | 2019-02-12 | 山东诺威新材料有限公司 | High rebound foam of automotive seat low-density and preparation method thereof |
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2020
- 2020-09-01 CN CN202010904634.5A patent/CN114106287A/en active Pending
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