CN109438648A - A kind of combined polyether, imitation wood decoration polyurethane foam and preparation method thereof - Google Patents
A kind of combined polyether, imitation wood decoration polyurethane foam and preparation method thereof Download PDFInfo
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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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/794—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aromatic isocyanates or isothiocyanates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/142—Compounds containing oxygen but no halogen atom
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/184—Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Polyurethanes Or Polyureas (AREA)
Abstract
This application involves a kind of combined polyethers, it is counted on the basis of parts by weight, is made of following raw material components: the first 30-60 parts of polyether polyol, the second 25-55 parts of polyether polyol, 15-25 parts of third polyether polyol, 1.0-2.0 parts of surfactant, the first 0.1-0.3 parts of catalyst, the second 0.8-1.3 parts of catalyst, 0.4-0.8 parts of third catalyst, 0.2-0.6 parts of chemical foaming agent, 0.8-1.6 parts of additive, 4-8 parts of physical blowing agent；Wherein, the sum of dosage of the pure and mild third polyether polyol of the first polyether polyol, the second polyether polyols is 100 parts, and the additive is aliphatic ketone.The application further relates to a kind of imitation wood decoration polyurethane foam, is made of the first component and the second component, wherein the first component is mixed by the raw material components of combined polyether as described above；Second group is divided into poly methylene poly phenyl poly isocyanate.The application further relates to a kind of method for preparing imitation wood decoration polyurethane foam.
Description
Technical field
This application involves chemosynthesis technical fields, specifically, this application involves a kind of combined polyether, are originated from described group
Close the imitation wood decoration polyurethane foam and preparation method thereof of polyethers.
Background technique
In recent years, due to the exhaustive exploitation of the forest reserves, the deterioration of the ecological environment and severe water and soil erosion are caused, so one
A little countries start to limit the exploitation of natural forest resourceies.At the same time, imitated wood material have become one of research and development it is new
Field, polyurethane wood-imitation material have excellent mechanical performance and processability, and high production efficiency, product good appearance is imitation wood
One major fields of developing material.
The foaming agent of mainstream has HCFC-141b, HFC-245fa, HFC-365mfc, pentane etc. in polyurethane imitation wood at present,
HCFC-141b is since it has biggish destruction to ozone layer, the state used in limitation, and can be complete after 2025
Forbid in face.The latent value (ODP) of the ozone-depleting of HFC-245fa and HFC-365mfc is 0, and global warming potential (GWP) is respectively
820 and 840, the problem of belonging to transitional product, also face substitution.
At present the zero odp value of mainstream, in low GWP value foaming agent, for pentane since its own is inflammable and explosive, risk is high, and
Its thermal conductivity is high, foam poor flame retardant properties obtained, larger using limiting.The thermal conductivity of water is very high, and compared to other uses
The system material quantity of physical blowing agent is more, only has use in individual industries.The LBA of forth generation foaming agent such as Honeywell Inc.
Or the Opteon1100 of Ke Mu company, current production scale very little, and it is expensive, also come without promoting.Formic acid first
The boiling point and solubility and HCFC-141b of ester are very close, and its is low in cost, and do not contain volatile organic matter (VOC), are
Foaming agent substitute ideal at present.
But influencing the greatest problem that uses of methyl formate is that it is easily hydrolyzed in combined polyether system, generate formic acid and
Methanol, and irreversible chemical reaction occurs for formic acid and amines catalyst, causes raw material reactivity slack-off, extrudate density liter
Height, system storage time are short.Even if it among article system, can also occur slowly to hydrolyze, hydrolysate formic acid and methanol
There is biggish solubility effect to foamed product, will appear foam contraction within three months, product compressive strength declines to a great extent
Phenomena such as generation.Methyl formate hydrolysis and the solubility effect to foamed product are solved, is that methyl formate foaming agent is applied most
Big difficult point.
For this purpose, can effectively inhibit the combined polyether of methyl formate hydrolysis, imitation wood dress there is an urgent need in the art to develop one kind
Decorations polyurethane foam and preparation method thereof.
Summary of the invention
In existing methyl formate foaming solution, the general dosage by special catalyst and reduction methyl formate
It solves the problems, such as methyl formate hydrolysis, but cannot be still fully solved in practical application, storage stability summer is at most 10
It or so still has rotten situation, and foamed product solubility effect still remains, using being very limited.
The application's is designed to provide a kind of combined polyether that can effectively inhibit methyl formate hydrolysis, to solve existing
There is the problems in technology.The present invention is by introducing special additive, wherein by methyl formate dissolution, reduces it and hydrolyzes feelings
Condition has obtained good using effect, and the shelf-life can extend to 90 days or more, can be adapted for the life of most clients
It produces.Meanwhile the solubility effect in foamed product is there has also been sizable improvement, still retention property after product is at most placed 1 year
Substantially do not decline.Both of the aforesaid problem has the scheme of good solution, and methyl formate foaming agent is filled in polyurethane imitation wood
Later period in decorations system promotes will more smoothly.
The purpose of the application, which also resides in, provides a kind of imitation wood decoration polyurethane foam from the combined polyether.
The purpose of the application, which also resides in, provides a kind of method for preparing imitation wood decoration polyurethane foam.
To achieve the goals above, the application provides following technical proposals.
In the first aspect, the application provides a kind of combined polyether, is counted on the basis of parts by weight, by following raw material groups
Divide and be made:
Wherein, the sum of dosage of the pure and mild third polyether polyol of the first polyether polyol, the second polyether polyols is 100 parts；
Wherein, the additive is aliphatic ketone.
In a kind of embodiment of first aspect, the aliphatic ketone includes butanone.
In a kind of embodiment of first aspect, first polyether polyol is using sorbierite as the polyoxy of initiator
Change propenyl, degree of functionality 2.5-4,510~570mgKOH/g of hydroxyl value, 475~775mPas of viscosity；
And/or second polyether polyol is using sucrose as the polypropylene oxide alcohol of initiator, degree of functionality 4-
4.5,345~385mgKOH/g of hydroxyl value, 2400~3600mPas of viscosity；
And/or the third polyether polyol is using sucrose as the polypropylene oxide alcohol of initiator, degree of functionality 4-
4.5,440~500mgKOH/g of hydroxyl value, 6300~7500mPas of viscosity.
In a kind of embodiment of first aspect, the surfactant includes foam stabiliser；
And/or first catalyst, second catalyst and the third catalyst are amines catalyst；
And/or the chemical foaming agent is water；
And/or the physical blowing agent includes methyl formate.
In a kind of embodiment of first aspect, first polyether polyol is that Jurong Ningwu new material share is limited
The polyether polyol NJ-6216 of company's production；
And/or second polyether polyol is the polyether polyol of Jurong Ningwu new material limited liability company production
NJ-8336；
And/or the third polyether polyol is the polyether polyol of Jurong Ningwu new material limited liability company production
NJ-8205；
And/or first catalyst is the Dabco BL-17 of Air Prod & Chem's production；
And/or second catalyst is the Dabco 33-LV of Air Prod & Chem's production；
And/or the third catalyst is the Polycat DBU of Air Prod & Chem's production；
And/or the foam stabiliser is L-6900 and/or the Jiangsu for stepping the production of figure new high-tech material (China) Co., Ltd
Beauty thinks the AK-8804 that limited liability company's production is learned in Dehua；
And/or the chemical foaming agent is deionized water.
In second aspect, the application provides a kind of imitation wood decoration polyurethane foam, which is characterized in that it is by first group
Divide and the second component is made, wherein the first component is mixed by the raw material components of combined polyether as described in relation to the first aspect；The
Two groups are divided into poly methylene poly phenyl poly isocyanate.
In a kind of embodiment of second aspect, institute's poly methylene poly phenyl poly isocyanate is Yantai Wanhua polyurethane
PM200, PM400 of limited liability company's production；The 44V20 of Beyer Co., Ltd's production；Or the production of BASF joint-stock company
One or more of M20S.
In a kind of embodiment of second aspect, the weight ratio of the first component and the second component is 1:1.0-1.2.
In a third aspect, the application, which provides, a kind of prepares imitation wood decoration polyurethane foam as claimed in claim 6
Method obtained after constant temperature foaming described imitative the method includes mixing the first component and the second component of predetermined weight ratio
Wood decoration uses polyurethane foam.
In a kind of embodiment of the third aspect, the blowing temperature of constant temperature foaming is 35-45 DEG C.
Compared with prior art, the beneficial effects of the present application are as follows solving methyl formate in imitation wood decoration combined polyether
The hydrolysis situation occurred in system, shelf lives can be improved by 90 days or more, meanwhile, the foamed product produced is not received
Situations such as contracting, deforming, facilitates popularization of the methyl formate in imitation wood decoration combined polyether system, safety and object
Rationality can be better than pentane system, and overall cost ratio HFC class and HFO class foaming agent are much lower, and ODP, GWP, VOC value are zero,
The feature of environmental protection is also optimal in all foaming agents.
Specific embodiment
Unless otherwise indicated, from context cues or belong to the convention of the prior art, otherwise number all in the application
It is all based on weight with percentage, and test and characterizing method used is all synchronous with the submission date of the application.It is being applicable in
In the case where, any patent, patent application or disclosure involved in the application are fully incorporated in this as reference, and its
Patent families of equal value are also introduced into as reference, about the synthetic technology in this field, product disclosed by these special documents
With the definition of fabrication design, polymer, comonomer, initiator or catalyst etc..If the specific art disclosed in the prior art
Defining for language is inconsistent with any definition provided herein, then term provided herein of being subject to defines.
Digital scope in the application is approximation, therefore unless otherwise stated, it may include the number other than range
Value.Numberical range include with the increased all numerical value from lower limit value to upper limit value of 1 unit, condition be any lower value with
There are the intervals of at least two unit between any high value.For example, if compositional, physics or other property (such as molecules
Amount, melt index (MI) etc.) it is 100 to 1000, it is meant that clearly list all single numbers, such as 100,101,102 etc., with
And all subranges, such as 100 to 166,155 to 170,198 to 200 etc..For comprising the numerical value less than 1 or comprising big
In the range of 1 score (such as 1.1,1.5 etc.), then suitably regard 1 unit as 0.0001,0.001,0.01 or 0.1.
For the range comprising the units less than 10 (such as 1 to 5), usually regard 1 unit as 0.1.These are only intended to table
The specific example of the content reached, and all possible combination of the numerical value between cited minimum and peak is all recognized
In this application for clear record.It is also pointed out that term " first " herein, " second " etc. do not limit sequencing, only
In order to distinguish the substance of different structure.
About chemical compound in use, unless explicitly stated otherwise, otherwise odd number includes all isomeric forms, otherwise also
So (for example, whole isomers that " hexane " either individually or collectively includes hexane).In addition, unless explicitly stated otherwise, otherwise using
"one", the noun that "an" or "the" are described also includes its plural form.
Term "comprising", " comprising ", " having " and their derivative are not excluded for any other component, step or mistake
The presence of journey, and whether disclose in this application with these other components, step or process unrelated.To eliminate any query,
Unless expressly stated, otherwise in the application it is all use term "comprising"s, " comprising ", or " having " composition may include appoint
What additional additive, auxiliary material or compound.On the contrary, in addition to necessary to operating characteristics those, term " substantially by ...
Composition " excludes any other component, step or process except the hereinafter described range of any term.Term " by ...
Composition " does not include any component, step or the process for not specifically describing or listing.Unless expressly stated, otherwise term "or" refers to
Separate member listed or any combination thereof.
In a specific embodiment, the application provides a kind of combined polyether.
The combined polyether of the application is made of following component, and the number is mass fraction, the first polyether polyol, second
The summation of the pure and mild third polyether polyol of polyether polyols is 100 parts:
In a specific embodiment, the combined polyether of the application includes polyether polyol.Mesh suitable for the application
Polyether polyol include but is not limited to by making epoxides (such as ethylene oxide, propylene oxide, epoxy butane or tetrahydro furan
Mutter) there is the product for being polymerize and being obtained in polyfunctionality initiator.Suitable initiator contains multiple active hydrogen atoms,
Specific example includes water, butanediol, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, ethanol amine, diethanol
Amine, triethanolamine, toluenediamine, diethyl toluene diamine, aniline, diphenylmethanediamiand, ethylenediamine, cyclohexane diamine, ring
Hexane dimethanol, resorcinol, bisphenol-A, glycerol, trimethylolpropane, 1,2,6- hexanetriol, pentaerythrite or their group
It closes.
In a specific embodiment, first polyether polyol is using sorbierite as the polypropylene oxide of initiator
Alcohol, degree of functionality 2.5-4,510~570mgKOH/g of hydroxyl value, 475~775mPas of viscosity, typical model Jurong are peaceful
The polyether polyol NJ-6216 of military new material limited liability company.
In a specific embodiment, second polyether polyol is using sucrose as the polypropylene oxide of initiator
Alcohol, degree of functionality 4-4.5,345~385mgKOH/g of hydroxyl value, 2400~3600mPas of viscosity, typical model Jurong
The polyether polyol NJ-8336 of Ningwu new material limited liability company.
In a specific embodiment, the third polyether polyol is using sucrose as the polypropylene oxide of initiator
Alcohol, degree of functionality 4-4.5,440~500mgKOH/g of hydroxyl value, 6300~7500mPas of viscosity, typical model Jurong
The polyether polyol NJ-8205 of Ningwu new material limited liability company.
The combined polyether of the application further includes surfactant, and surfactant usually supports the equal of foaming agent and polyalcohol
It homogenizes, and adjusts the pore structure that imitation wood decoration uses polyurethane foam.Surfactant may include any conjunction as known in the art
The mixture of suitable surfactant or surfactant.
In a specific embodiment, the surfactant of the application includes foam stabiliser.Herein described foam
Stabilizer be type siloxane foam stabiliser, the present invention be preferably step figure new high-tech material (China) Co., Ltd L-6900 with/
Or the AK-8804 of Jiangsu Maysta Chemical Co., Ltd..
In a specific embodiment, combined polyether as described herein further includes carbon monoxide-olefin polymeric.Catalyst is usual
Reaction for being catalyzed between isocyanates and polyalcohol, and be not consumed in the reaction.In a specific embodiment, originally
The combined polyether of application includes at least the first catalyst, the second catalyst and third catalyst.First catalyst of the present invention
For the common amines catalyst of polyurethane field, the preferred Dabco BL-17 of the present invention (Air Prod & Chem's production).This hair
Bright second catalyst is the common amines catalyst of polyurethane field, and (air chemical industry produces the preferred Dabco 33-LV of the present invention
Product company production).Third catalyst of the present invention is the common amines catalyst of polyurethane field, and the present invention is preferred
Polycat DBU (Air Prod & Chem's production).
In a specific embodiment, the combined polyether of the application further includes additive.The additive can be used as molten
Agent for dissolving methyl formate, and inhibits the hydrolysis of methyl formate.In a specific embodiment, addition as described herein
Agent is aliphatic ketone comprising but be not limited to butanone, pentanone, new pentanone, cyclohexanone etc..In a kind of particularly preferably embodiment
In, additive described herein is butanone.
In a specific embodiment, the combined polyether of the application also optionally includes other conventional additives, institute
State conventional additives include but is not limited to chain extender, chain terminating agent, processing aid, adhesion promotor, antioxidant, defoaming agent,
Deicer, molecular sieve, UV light stabilizing agent, filler, thixotropic agent, colorant, inert diluent or their combination.
Combined polyether described herein may also include chemical foaming agent and physical blowing agent.Herein, term " physics
Foaming agent " refers to the foaming agent that will not be chemically reacted with isocyanates or polyalcohol.Physical blowing agent can be gas or
Liquid.Liquid physical blowing agent usually flashes to gas when heated, and usually reverts to liquid while cooling.A kind of specific
In embodiment, herein described physical blowing agent is methyl formate.
Herein, term " chemical foaming agent " refer to isocyanates, polyalcohol or other components occur chemical reaction and
Foaming agent of the release for the gas of foaming.In a specific embodiment, chemical foaming agent as described herein includes water, special
It is not deionized water.
Present invention also provides a kind of imitation wood decoration polyurethane foams, and the material is by two kinds of the first component and the second component
Component after mechanical stirring mixes, is synthesized with certain proportion by a series of chemical reaction.Wherein, the first component passes through
The raw material components of combined polyether as described above mix.Specifically, the first component by a certain proportion of polyether polyol,
Surfactant, catalyst, additive, foaming agent etc. are formed by mechanical mixture；Second group is divided into polymethylene polyphenyl
Polyisocyanates (PAPI).
Poly methylene poly phenyl poly isocyanate of the present invention is that the common polymethylene polyphenyl of polyurethane field is more
Isocyanates, such as PM200, PM400 that Yantai Wanhua Polyurethane Co., Ltd produces, the 44V20 of Beyer Co., Ltd, BASF
The M20S etc. of joint-stock company.The PM400 of the preferred Yantai Wanhua Polyurethane Co., Ltd's production of the present invention.
The weight ratio of first component and the second component of the present invention is 1:1.0-1.2.
The application also provides a kind of method for preparing imitation wood decoration polyurethane foam, and the method includes mixing predetermined weight
The first component and the second component of amount ratio obtain the imitation wood decoration polyurethane foam after constant temperature foaming.
Embodiment
Below in conjunction with embodiments herein, clear and complete description is carried out to the technical solution of the application.Such as nothing
It illustrates, reagent used and raw material can all be bought by commercial sources.Actual conditions are not specified in the following example
Experimental method according to conventional methods and conditions, or is selected according to product manual.
Embodiment 1-4 and comparative example 1-2
Firstly, according to the first component of the ingredient preparation embodiment 1-4 and comparative example 1-2 in following table, number described in table 1
It is mass fraction.
The first component formula of table 1. embodiment 1-4 and comparative example 1-2
| Material name | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 |
| NJ-6216 | 30 | 40 | 50 | 60 | 60 | 40 |
| NJ-8336 | 55 | 35 | 30 | 25 | 25 | 40 |
| NJ-8205 | 15 | 25 | 20 | 15 | 15 | 20 |
| L-6900 | 1.0 | 1.0 | 0.5 | 0 | 0 | 1.0 |
| AK-8804 | 0 | 1.0 | 1.0 | 2.0 | 2.0 | 1.0 |
| Dabco BL-17 | 0.3 | 0.1 | 0.2 | 0.3 | 0.3 | 0 |
| Dabco 33-LV | 1.0 | 1.3 | 1.1 | 0.8 | 0.8 | 0 |
| Polycat DBU | 0.6 | 0.4 | 0.8 | 0.7 | 0.7 | 0 |
| Polycat 5 | 0 | 0 | 0 | 0 | 0 | 0.4 |
| Polycat 8 | 0 | 0 | 0 | 0 | 0 | 1.0 |
| Polycat 41 | 0 | 0 | 0 | 0 | 0 | 0.6 |
| Deionized water | 0.2 | 0.6 | 0.5 | 0.4 | 0.4 | 0.4 |
| Butanone | 1.6 | 0.8 | 1.2 | 1.6 | 0 | 0 |
| Methyl formate | 8 | 4 | 6 | 8 | 8 | 0 |
| Pentamethylene | 0 | 0 | 0 | 0 | 0 | 8 |
| PAPI | 123.97 | 109.2 | 122.43 | 135.6 | 134.64 | 135.12 |
Other raw materials described in table 1 in addition to PAPI are poured into reaction vessel according to regulation ratio, utilize electric mixer
It is uniformly mixed, the first component is made；Again by the first component and the second composition regulation temperature to 22 DEG C, according to corresponding weight ratio
It pours into reaction vessel, is then stirred 6-10 seconds using electric mixer, liquid after mixing is poured into constant temperature 35-45
DEG C thickness 6cm mold in, shut mold, under the conditions of 40 DEG C of constant temperature place 10min after open mold, can obtain of the present invention
Imitation wood decoration uses polyurethane foam.
The resulting materials of embodiment 1-4 and comparative example 1-2 are tested for the property, acquired results see the table below.
Performance test standard:
Cream time, gel time, unsticking time: it is estimated using stopwatch；
Freely steep density, molding bubble density: the density measurement of GB/T 6343-95 polyurethane foam plastics；
Compressive strength: the measurement of GB/T 8813-2008 rigid foam compression performance；
Surface hardness: Shao's D hardometer test；；
Dimensional stability: the measurement of GB/T 6342-1996 foamed plastics and rubber linear dimension.
2. embodiment 1-4 of table and comparative example 1-2 the performance test results
As known from Table 2, after present invention gained combined polyether is placed 30 days, the reaction time and freely steep density it is too greatly
Variation, can be used with long term storage, and volume after low temperature is placed 180 days after imitation wood decoration polyurethane foam product is made and becomes
Rate very little ensure that the long-term performance of product.It is compared in the pentamethylene foaming system with existing market mainstream, it has been found that
The physical properties such as its compressive strength, surface hardness, dimensional stability are superior to cyclopentane systems, along with its safety is higher,
Value with large-scale promotion.Raw material used herein is sold raw material on the market, and raw material sources are extensive, can be carried out big
Large-scale production.
The above-mentioned description to embodiment is that this Shen can be understood and applied for the ease of those skilled in the art
Please.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without paying creative labor.Therefore, the application is not limited to implementation here
Example, those skilled in the art make according to herein disclosed content in the case where not departing from the application scope and spirit
It improves and modifies within all scope of the present application.
Claims (10)
1. a kind of combined polyether, is counted on the basis of parts by weight, it is made of following raw material components:
Wherein, the sum of dosage of the pure and mild third polyether polyol of the first polyether polyol, the second polyether polyols is 100 parts；
Wherein, the additive is aliphatic ketone.
2. combined polyether as described in claim 1, which is characterized in that the aliphatic ketone includes butanone.
3. combined polyether as described in claim 1, which is characterized in that first polyether polyol is using sorbierite as starting
The polypropylene oxide alcohol of agent, degree of functionality 2.5-4,510~570mgKOH/g of hydroxyl value, 475~775mPas of viscosity；
And/or second polyether polyol is using sucrose as the polypropylene oxide alcohol of initiator, degree of functionality 4-4.5, hydroxyl
345~385mgKOH/g of value, 2400~3600mPas of viscosity；
And/or the third polyether polyol is using sucrose as the polypropylene oxide alcohol of initiator, degree of functionality 4-4.5, hydroxyl
440~500mgKOH/g of value, 6300~7500mPas of viscosity.
4. combined polyether as described in claim 1, which is characterized in that the surfactant includes foam stabiliser；
And/or first catalyst, second catalyst and the third catalyst are amines catalyst；
And/or the chemical foaming agent is water；
And/or the physical blowing agent includes methyl formate.
5. combined polyether as claimed in claim 4, which is characterized in that first polyether polyol is Jurong Ningwu new material
The polyether polyol NJ-6216 of limited liability company's production；
And/or second polyether polyol is the polyether polyol NJ- of Jurong Ningwu new material limited liability company production
8336；
And/or the third polyether polyol is the polyether polyol NJ- of Jurong Ningwu new material limited liability company production
8205；
And/or first catalyst is the Dabco BL-17 of Air Prod & Chem's production；
And/or second catalyst is the Dabco 33-LV of Air Prod & Chem's production；
And/or the third catalyst is the Polycat DBU of Air Prod & Chem's production；
And/or the foam stabiliser is that the L-6900 for stepping the production of figure new high-tech material (China) Co., Ltd and/or Jiangsu beauty are thought
Learn the AK-8804 of limited liability company's production in Dehua；
And/or the chemical foaming agent is deionized water.
6. a kind of imitation wood decoration polyurethane foam, which is characterized in that it is made of the first component and the second component, wherein first
Component is mixed by the raw material components of combined polyether according to any one of claims 1 to 5；Second group is divided into more methylenes
Quito polyphenyl polyisocyanate.
7. imitation wood decoration polyurethane foam as claimed in claim 6, which is characterized in that institute's polymethylene polyphenyl polyisocyanate cyanogen
Acid esters is PM200, PM400 of Yantai Wanhua Polyurethane Co., Ltd's production；The 44V20 of Beyer Co., Ltd's production；Or
One or more of the M20S of BASF joint-stock company production.
8. imitation wood decoration polyurethane foam as claimed in claim 6, which is characterized in that the weight of the first component and the second component
Amount ratio is 1:1.0-1.2.
9. a kind of method for preparing imitation wood decoration polyurethane foam as claimed in claim 6, pre- the method includes mixing
Determine the first component and the second component of weight ratio, obtains the imitation wood decoration polyurethane foam after constant temperature foaming.
10. the method that preparation imitation wood decoration uses polyurethane foam as claimed in claim 9, which is characterized in that constant temperature foaming
Blowing temperature is 35-45 DEG C.
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