CN106380567A - Polyurethane high resilience foam prepared from recovered recycled polyol as raw material - Google Patents
Polyurethane high resilience foam prepared from recovered recycled polyol as raw material Download PDFInfo
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- CN106380567A CN106380567A CN201610763696.2A CN201610763696A CN106380567A CN 106380567 A CN106380567 A CN 106380567A CN 201610763696 A CN201610763696 A CN 201610763696A CN 106380567 A CN106380567 A CN 106380567A
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- 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
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- 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
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- 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
- C08G18/3203—Polyhydroxy compounds
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- 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
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- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
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- 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
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- 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
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
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- 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
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- 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
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- 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
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- 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
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Abstract
The invention discloses a method for preparing polyurethane high resilience foam from recovered recycled polyol as a raw material. The polyurethane high resilience foam comprises a white material and a black material. The white material is a polyether composition and comprises, by mass, 50-70 parts of polyether polyol, 10-30 parts of polymer polyol, 20-30 parts of recovered recycled polyol, 0.4-1 part of a catalyst, 0.5-1.5 parts of a silicone surfactant for foam softening and 2-6 parts of a foaming agent. The black material is polyether-modified MDI. A mass ratio of the white material to the black material is 1.5-2.5: 1. The method creatively utilizes the polyurethane foam alcoholysis recovered liquid as a high resilience foam raw material, realizes cycling use of the raw material in a polyurethane industry and realizes a wide polyurethane foam recovery prospect. The high resilience foam is used for automobile components of a carpet sound insulation pad and a bumper pad block and has good feeling, good permeability, excellent sound absorption performances and a low cost.
Description
Technical field
The invention belongs to polyurethane foam plastics field is and in particular to a kind of prepared with reclaiming polyhydric alcohol for raw material
The method of polyurethane high resilience foam.
Background technology
Nineteen thirty-seven Germany Otto doctor Bayer and its team find that polyisocyanates is entered with polyol compound first
Row sudden reaction can be obtained polyurethane, and the basis that polyurethane industrial flourishes has been established in this invention.Polyurethane foam product
Form has soft, semi-rigid and rigid foam three class, and form different application field also differs widely.Flexible foam is mainly used in vapour
Vehicle seats, carpet, semi-rigid foam is used for roof of the vehicle, engine heat insulation pad, and rigid foam is then used as insulation material, such as builds
With refrigerator etc..
Polyurethane foam relies on its excellent physical property and good processability, in the application also day of all trades and professions
Benefit is extensive, but meanwhile the process of waste polyurethane is also a great problem.Polyurethane material extremely difficult decomposition under field conditions (factors),
If buried underground, need many decades could decompose.Now commonly used processing method is to burn, but burning process can produce greatly
Amount toxic and harmful such as NO2, hydrocyanic acid (HCN) etc..Therefore, burying and burn is not suitable processing method, neither ring
Protect, also uneconomical.
Foam can be degraded and is recycled liquid by the chemical recovery of polyurethane foam again, and chemical recovery method mainly includes alkali
Solution, amine-decomposing method, Hydrolyze method and alcoholysis method etc., because of its process is simple and recovered liquid application is convenient for alcoholysis method, therefore, industrialization
Learn and reclaim based on alcoholysis method.The recovered liquid that alcoholysis obtains mainly includes hydroxy-end capped oligomer and unreacted completely alcoholysis
Agent (dihydroxylic alcohols small molecule), hydroxyl value is typically higher, and ratio is more suitable for hard-foam polyurethane foaming.
CN103788335A discloses a kind of solid phase alcoholysis and reclaims the method for elastomer for the polyurethane, by alcoholysis product,
White carbon black or white carbon, cumyl peroxide and isocyanates are mixed in proportion, and react ten minutes about at 150～175 DEG C
Obtain polyurethane elastomer.It is not directed in patent for alcoholysis recovered liquid to be used for high rebound foam foaming.
CN104672414A discloses a kind of method that polyurethane heat insulation material is prepared in waste polyurethane elastomer recovery, will
The recovered liquid that alcoholysis obtains and chain extender, foaming agent, foam stabilizer, catalyst, water are mixed in proportion expects as white after stirring evenly, and black
Material foaming obtains the hard polyaminoester insulating foam of excellent thermal insulation performance, and heat conductivity reaches 0.02W/m K.Same in patent
Do not refer to and recovered liquid is used for high rebound foam foaming.
CN104193939A discloses a kind of high resilience polyurethane foam preparation method, resilience 62-65%, percentage elongation
130～140%, tensile strength 150～155kPa, tearing strength 2.8～2.85N/cm.Reclaiming is not contained many in raw material yet
First alcohol.
Content of the invention
Reclaim gained regenerating polyol using waste polyurethane foam alcoholysis and be reused for polyurethane foam, compared to common
It is used as filler after physical pulverization foam, improve cyclic utilization rate and be more suitable for middle- and high-end applications.The invention provides one kind with
The polyurethane high resilience foam that reclaiming polyhydric alcohol is prepared for raw material, its concrete technical scheme is as follows：
As further improving, the present invention is a kind of bubble of the polyurethane high-elastic with reclaiming polyhydric alcohol as raw material
Foam, described polyurethane high resilience foam includes white material and black material, and white material is polyether combined material, and its each component and mass ratio are：
50～70 parts of polyether polyol, 10～30 parts of polymer polyatomic alcohol, 20～30 parts of reclaiming polyhydric alcohol, catalyst 0.4～1
Part, soft bubble 0.5～1.5 part of silicone surfactant and 2～6 parts of foaming agent；Black material is polyether-modified MDI, wherein white material with
The mass ratio of black material is 1.5～2.5: 1.
As further improving, described polyurethane high resilience foam of the present invention also includes fire retardant, described
Fire retardant be phosphorous-nitrogen system bittern-free fire retardant, be 0～8 part, concrete addition depending on flame-retardancy requirements, then need not by non-antiflaming requirement
Add fire retardant.
As further improving, polyurethane high resilience foam of the present invention also includes cross-linking agent, described crosslinking
Agent is 0.5～1.5 part.When the partial alcoholysis agent containing in reclaiming polyhydric alcohol is not enough, cross-linking agent can be added.
As further improving, glycerol of the present invention is the polyether polyol of initiator is three-functionality-degree, point
Son is measured as 5000～6000, to improve the elongation at break of foam.
As further improving, polymer polyatomic alcohol of the present invention is acrylonitrile and styrene monomer be grafted to poly-
On ethoxylated polyhydric alcohol, to provide the higher load-carrying properties of high rebound foam and percent opening.
As further improving, reclaiming polyhydric alcohol of the present invention reclaims gained for polyurethane foam alcoholysis,
In 380～420mgKOH/g, viscosity is 4000-4500mPa s to hydroxyl value, and acid number is 1.～1.5mgKOH/g.
As further improving, catalyst of the present invention is the mixture of foaming and gel catalyst, or balance
Type catalyst.
As further improving, foaming agent of the present invention is one or more of water, 141B and Pentamethylene., preferably
Water as foaming agent, low cost, also more environmentally-friendly.
As further improving, cross-linking agent of the present invention includes diethanolamine or triethanolamine, and reclaiming
The partial alcoholysis agent containing in polyhydric alcohol, therefore can suitably reduce the content of cross-linking agent (diethanolamine or triethanolamine).
As further improving, the NCO content of polyether-modified MDI of the present invention between 26～28%, to replace
For highly toxic TDI as soft bubble isocyanates.
As further improving, polyether combined material of the present invention is 1.5 with the quality of polyether-modified MDI than ratio
～2.5.With the difference of foam pattern or foam process, polyether combined material can suitably be adjusted with the mass ratio of modified MDI, molding
Both ratio that foams is advisable 2～2.5, and free foaming is between 1.5～2, and gained foam combination property is more preferable.
Improve as further, compared with prior art, as follows using beneficial effects of the present invention：
1) first polyurethane foam alcoholysis recovered liquid is used for high rebound foam raw material it is achieved that material is in polyurethane industries among others
Interior recycles, and also makes the prospect that polyurethane foam reclaims more wide.This high rebound foam is used for carpet sound insulating pad
With auto parts and components such as cushion pads, there is excellent sense of touch, good breathability, excellent sound absorption properties and low cost etc. are excellent
Gesture.
2) a small amount of tertiary amine compound and the alcoholysis of part residual are contained in the reclaiming polyol oligomer that alcoholysis obtains
Agent, this recovered liquid is used as, after high rebound foam foaming raw material, to play partial catalyst and the effect of chain extender respectively, thus
Reduce the consumption of fresh catalyst and chain extender, being especially the reduction of expensive catalyst consumption can reduces cost further.
Specific embodiment
With reference to embodiment, the present invention is further described, example is only used for explaining the present invention, and
Non- for limiting the scope of the present invention.
Embodiment 1
Polyether polyol 330N：70 parts, polymer polyatomic alcohol KGP524：10 parts, reclaiming polyhydric alcohol：20 parts, catalysis
Agent ZF10：0.3 part, catalyst A33：0.7 part, silicone surfactant：1.5 parts, water：6 parts, crosslinking agent triethanolamine：0.5
Part, it is not added with fire retardant；Modified MDI：72.5 parts.
Foaming method is as follows：In advance by above-mentioned material mixing and stirring in addition to modified MDI, standing maintains material temperature to exist
23 ± 2 DEG C, modified MDI material temperature is also maintained at 23 ± 2 DEG C.First modified MDI is poured into charging basket after black and white material is ready, then pour into
The white material having stirred evenly stirs 10s with the rotating speed of 1500rpm, pours the mixture into foam box and carries out free foaming.
After testing：Foam density is 30kg/m3, rebound degree 57%, tensile strength 91kPa, elongation at break 99%, tear
Intensity 2.3N/cm.
Embodiment 2
Polyether polyol 330N：50 parts, polymer polyatomic alcohol KGP524：20 parts, reclaiming polyhydric alcohol：30 parts, catalysis
Agent ZF10：0.1 part, catalyst A33：0.3 part, silicone surfactant：0.5 part, water：2 parts, crosslinking agent triethanolamine：1.5
Part, phosphorous-nitrogen system bittern-free fire retardant：8 parts；Modified MDI：52.5 parts.
Foaming method is as follows：In advance by above-mentioned material mixing and stirring in addition to modified MDI, standing maintains material temperature to exist
23 ± 2 DEG C, modified MDI material temperature is also maintained at 23 ± 2 DEG C.First modified MDI is poured into charging basket after black and white material is ready, then pour into
The white material having stirred evenly stirs 10s with the rotating speed of 1500rpm, pours the mixture into foam box and carries out free foaming.
After testing：Foam density is 68kg/m3, rebound degree 61%, tensile strength 168kPa, elongation at break 110%, tears
Resistance to spalling 3.5N/cm, horizontal firing speed is less than 100mm/10min.
Embodiment 3
Polyether polyol 330N：50 parts, polymer polyatomic alcohol KGP524：30 parts, reclaiming polyhydric alcohol：20 parts, catalysis
Agent ZF10：0.3 part, catalyst A33：0.6 part, silicone surfactant：0.8 part, water：3.5 parts, crosslinking agent triethanolamine：0.8
Part, phosphorous-nitrogen system bittern-free fire retardant：3 parts；Modified MDI：42.5 parts.
Foaming method is as follows：In advance by above-mentioned material mixing and stirring in addition to modified MDI, standing maintains material temperature to exist
23 ± 2 DEG C, modified MDI material temperature is also maintained at 23 ± 2 DEG C.To expect that (2.5: 1) are beaten in proportion with black material in vain using high pressure foaming machine
Enter to carry out molding foaming (die surface sprays releasing agent in advance), the demoulding after 90s in mould.
After testing：Foam density is 72kg/m3, rebound degree 65%, tensile strength 165kPa, elongation at break 116%, tears
Resistance to spalling 3.7N/cm.
Embodiment 4
Polyether polyol 330N：60 parts, polymer polyatomic alcohol KGP524：20 parts, reclaiming polyhydric alcohol：20 parts, catalysis
Agent ZF10：0.3 part, catalyst A33：0.6 part, silicone surfactant：0.8 part, water：3.5 parts, crosslinking agent triethanolamine：1
Part, phosphorous-nitrogen system bittern-free fire retardant：3 parts；Modified MDI：53.1 parts.
Foaming method is as follows：In advance by above-mentioned material mixing and stirring in addition to modified MDI, standing maintains material temperature to exist
23 ± 2 DEG C, modified MDI material temperature is also maintained at 23 ± 2 DEG C.To expect that (2: 1) are squeezed in proportion with black material in vain using high pressure foaming machine
Carry out molding foaming (die surface sprays releasing agent in advance), the demoulding after 90s in mould.
After testing：Foam density is 74kg/m3, rebound degree 66%, tensile strength 168kPa, elongation at break 112%, tears
Resistance to spalling 3.8N/cm.
Embodiment enumerated above be only the preferred embodiment of the present invention it is noted that the invention is not restricted to
Upper embodiment, can also have all shape changeables, for those skilled in the art, without departing from the principle of the invention
On the premise of some improvement of making or deformation, these improve or deformation is all considered as protection scope of the present invention.
Claims (10)
1. a kind of polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol is it is characterised in that described poly- ammonia
The high rebound foam of ester includes white material and black material, and described white material is polyether combined material, and its each component and mass ratio are：Polyether polyols
50～70 parts of alcohol, 10～30 parts of polymer polyatomic alcohol, 20～30 parts of reclaiming polyhydric alcohol, 0.4～1 part of catalyst, soft bubble is used
0.5～1.5 part of surfactant and 2～6 parts of foaming agent；Described black material is polyether-modified MDI, the matter of wherein white material and black material
Amount ratio is for 1.5～2.5: 1.
2. the polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol according to claim 1, its feature
It is, described polyurethane high resilience foam also includes fire retardant, and described fire retardant is phosphorous-nitrogen system bittern-free fire retardant, is 0～8
Part.
3. the polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol according to claim 1, its feature
It is, described polyurethane high resilience foam also includes cross-linking agent, described cross-linking agent is 0.5～1.5 part.When reclaiming is many
During the partial alcoholysis agent deficiency containing in first alcohol.
4. the polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol according to claim 1 or 2 or 3,
It is characterized in that, described glycerol is the polyether polyol of initiator is three-functionality-degree, and molecular weight is 5000～6000.
5. the polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol according to claim 4, its feature
It is, described polymer polyatomic alcohol is acrylonitrile and styrene monomer is grafted in polyether polyol.
6. being steeped with the polyurethane high-elastic that reclaiming polyhydric alcohol is prepared for raw material according to claim 1 or 2 or 3 or 4
Foam reclaims gained it is characterised in that described reclaiming polyhydric alcohol is polyurethane foam alcoholysis, hydroxyl value 380～
420mgKOH/g, viscosity is 4000-4500mPa s, and acid number is 1.～1.5mgKOH/g.
7. the polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol according to claim 6, its feature
It is, described catalyst is the mixture of foaming and gel catalyst, or equilibrium catalyst.
8. the polyurethane high-elastic prepared for raw material with reclaiming polyhydric alcohol according to claim 1 or 2 or 3 or 5 or 7
Foam is it is characterised in that described foaming agent is one or more of water, 141B and Pentamethylene..
9. the polyurethane high-elastic prepared for raw material with reclaiming polyhydric alcohol according to claim 1 or 2 or 3 or 5 or 7
Foam is it is characterised in that the NCO content of described polyether-modified MDI is between 26～28%.
10. the polyurethane high resilience foam prepared for raw material with reclaiming polyhydric alcohol according to claim 1, its feature
It is, described polyether combined material is 1.5～2.5 with the quality of polyether-modified MDI than ratio.
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| CN201610763696.2A CN106380567A (en) | 2016-08-30 | 2016-08-30 | Polyurethane high resilience foam prepared from recovered recycled polyol as raw material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105521A (en) * | 2019-05-13 | 2019-08-09 | 张会仙 | A kind of railroad track liquid rubber cushion blocking and its application |
| CN110936698A (en) * | 2019-10-30 | 2020-03-31 | 河南晖睿智能科技有限公司 | Manufacturing method of building decorative plate with good sound insulation effect |
| CN114106281A (en) * | 2021-12-01 | 2022-03-01 | 万华化学（宁波）有限公司 | Method for modifying recycled and regenerated polyol and application of modified polyol |
| CN114456344A (en) * | 2021-12-30 | 2022-05-10 | 浙江华江科技股份有限公司 | Low-carbon environment-friendly full-bio-based semi-rigid polyurethane foam formula |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110936698A (en) * | 2019-10-30 | 2020-03-31 | 河南晖睿智能科技有限公司 | Manufacturing method of building decorative plate with good sound insulation effect |
| CN110936698B (en) * | 2019-10-30 | 2021-08-20 | 河南晖睿智能科技有限公司 | Manufacturing method of building decorative plate with good sound insulation effect |
| CN114106281A (en) * | 2021-12-01 | 2022-03-01 | 万华化学（宁波）有限公司 | Method for modifying recycled and regenerated polyol and application of modified polyol |
| CN114106281B (en) * | 2021-12-01 | 2023-12-19 | 万华化学（宁波）有限公司 | Method for modifying recycled polyol and application of modified polyol |
| CN114456344A (en) * | 2021-12-30 | 2022-05-10 | 浙江华江科技股份有限公司 | Low-carbon environment-friendly full-bio-based semi-rigid polyurethane foam formula |
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