CN110467709A - A kind of combined polyether, PIR battenboard and preparation method using its preparation - Google Patents
A kind of combined polyether, PIR battenboard and preparation method using its preparation Download PDFInfo
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- CN110467709A CN110467709A CN201910853212.7A CN201910853212A CN110467709A CN 110467709 A CN110467709 A CN 110467709A CN 201910853212 A CN201910853212 A CN 201910853212A CN 110467709 A CN110467709 A CN 110467709A
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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
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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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
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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
- C08J9/141—Hydrocarbons
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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
-
- 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
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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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
- C08J2203/20—Ternary blends of expanding agents
- C08J2203/204—Ternary blends of expanding agents of chemical foaming agent and physical blowing agents
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of combined polyethers, it carries out being sufficiently mixed the component A being prepared at normal temperature by polyether polyol A, polyether polyol B, polyester polyol C, polyester polyol D, foam stabiliser, catalyst, fire retardant, physical blowing agent and chemical foaming agent and B component is constituted, wherein, polyether polyol B is flatulence slow-rebound polyether polyol, the foam structure for the PIR battenboard laminboard layer being prepared by the component can be changed, accelerate distributing for foam heat, accelerate the curing of foam, to reduce the probability that PIR battenboard burns core.
Description
Technical field
The invention belongs to polyurethanes technology field more particularly to a kind of combined polyether, using its preparation PIR battenboard and
Preparation method.
Background technique
Polyisocyanurate foamed plastics abbreviation PIR, be by isocyanates after catalysis with polyethers the system of reacting
At foamed material, physics and fire line are more more excellent than general polyurethane, are a kind of ideal organic low temperature insulation, tool
Have the advantages that thermal coefficient is small, lightweight is shockproof, adaptable, there is wide developing market in energy-saving heat preserving industry.Energy conservation is protected
The fields such as the very big building of dosage, Cold Chain Logistics, heat-insulating sound-insulating door are widely applied in warm industry presss from both sides for metal covering PIR foam
Core plate, metal covering PIR foam battenboard are by injecting among two layers of waterproof color coated steel sheet or other metal deckings
PIR foam liquid, solidification extrusion forming are prepared.
In recent years, the common foaming agent of polyurethane foam industry is the hydrochlorofluorocarbons foaming agent of the second generation, and this chemical combination
Object has serious destruction to atmospheric ozone layer, " Vienna Convention on Protection of Ozone Layer " and " smelly about consuming in order to fulfil
The Montreal Protocol of oxide material layer " as defined in obligation and according to being issued by State Council on March 24th, 2010, from 2010
The related requests such as " the ozone depleting substances management rules " of execution from June 1, Chinese Ministry of Environmental Protection have had been turned on superseded hydrochlorofluorocarbons hair
The plan of infusion.The blowing agent system of the current comparatively ideal combined polyether that can substitute hydrochlorofluorocarbons foaming agent is pentane body
System, including pentane, pentamethylene, isopentane, the boiling point high specific gravity compared to second generation blowing agent H CFC-141B pentane is small, such as
The boiling point of pentane is 36.1 DEG C, and specific gravity is 0.6 (specific gravity of water is 1).
And the main problem that the combined polyether of pentane system faces is that viscosity is bigger than normal, increases the difficulty of combined polyether premix
Degree, and due to after sandwich sheet metal forming internal temperature height lead to the entirety that will appear apparent expansion effects plate after plate forming
Size and the phenomenon that with plate " burn core ", therefore it is extremely urgent to develop new pentane system combinations polyethers.
Summary of the invention
It is bigger than normal it is an object of the invention to solve pentane system combinations polyethers viscosity, increase combined polyether premix difficulty
And since the problem of the higher caused plate expansion of internal temperature, burning core, it is raw to provide a kind of continous way after sandwich sheet metal forming
Produce PIR foam battenboard pentane system combinations polyethers.
To achieve the above object, it the present invention provides a kind of combined polyether, is made of component A and B component, in which:
Component A includes the ingredient of following parts by weight:
B component are as follows: isocyanates；
Wherein:
The polyether polyol A, polyether polyol B, polyester polyol C and polyester polyol D total weight number be 100
Part；
The hydroxyl value of the polyether polyol A is 520mgKOH/g~540mgKOH/g, and the viscosity at 25 DEG C is
12000mPas~17000mPas；
The polyether polyol B is flatulence slow-rebound polyether polyol, and hydroxyl value is 30mgKOH/g~40mgKOH/g；
The degree of functionality of the polyester polyol C is 2, and hydroxyl value is 190mgKOH/g~200mgKOH/g, the viscosity at 25 DEG C
For 10000mPas~30000mPas；
Hydroxyl value 270mgKOH/g~330mgKOH/g of the polyester polyol D, the viscosity at 25 DEG C is 2000mPas
~3000mPas.
As the further improvement of the application, the foam stabiliser is organic silicon surfactant.
As the further improvement of the application, the catalyst includes catalyst I, catalyst II and catalyst III；Institute
Stating catalyst I is polyurethane foaming catalyst；The catalyst II is amines catalyst；The catalyst III is polyurethane trimerization
Catalyst.
As the further improvement of the application, the catalyst I is pentamethyl-diethylenetriamine；The catalyst II is N,
N- dimethyl cyclohexyl amine, N, the combination of one or both of N- dimethyl benzylamine substance；The catalyst III is 1,3,5- tri-
(dimethylamino-propyl)-Hexahydrotriazine, isooctyl acid potassium one or more of diglycol solution substance combination.
As the further improvement of the application, the fire retardant is three (2- chloroethyl) phosphates, three (chloro isopropyl) phosphorus
The combination of one or more of acid esters (TCPP), triethyl phosphate and dimethyl methyl phosphonate substance.
As the further improvement of the application, the physical blowing agent is the mixing of pentane or pentane and isopentane
Object.
As the further improvement of the application, the chemical foaming agent is water.
To achieve the above object, present invention also provides a kind of method that combined polyether prepares PIR battenboard from the above mentioned,
Include the following steps:
The preparation of S1, component A: by polyether polyol A, polyether polyol B, polyester polyol C and polyester polyol D, bubble
Foam stabilizers, catalyst, fire retardant, physical blowing agent and chemical foaming agent are sufficiently mixed at normal temperature, obtain component A；
The preparation of S2, PIR battenboard: it firstly, foaming after the obtained component A of step S1 and B component are sufficiently mixed, obtains
PIR foam liquid；Secondly, after the injection of PIR foam liquid is had the die for molding of top panel and lower panel, cure under pressure,
Cutting, room temperature curing, obtain PIR battenboard.
As the further improvement of the application, the component A and the B component weight ratio are 100:170-230.
The beneficial effects of the present invention are, by using the physical blowing agent of pentane system, the pollution to environment is reduced,
With fabulous developing market；The present invention is in compressive strength, thermal coefficient, rate of closed hole, dimensional stability and the bubble for guaranteeing plate
It, should by introducing the flatulence slow-rebound polyether polyol in soft bubble low resilience formula system in the case where the whole curing of foam
The structure of flatulence slow-rebound polyether polyol energy changing section abscess accelerates heat in foam to distribute, to accelerate foam
Curing, reduce the probability that PIR battenboard burns core, the whole brittleness of PIR foam of preparation also made to significantly improve；By this
For the PIR battenboard of the component preparation of invention without bad phenomenons such as expansion, cracking, contractions, the excellent in dimensional stability of foam is fire-retardant
It is functional, and there is certain noise reduction sound function.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment pair
Technical scheme is clearly and completely described.Obviously, described embodiment is only some embodiments of the present application,
Instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall in the protection scope of this application.
A kind of combined polyether produces PIR foam battenboard for continous way, is made of component A and B component, in which: A group
Point including following parts by weight ingredient: 20 parts~40 parts of polyether polyol A；B10 parts~20 parts of polyether polyol；Polyester is more
30 parts~50 parts of first alcohol C；20 parts~40 parts of polyester polyol D；2 parts~2.5 parts of foam stabiliser；Catalyst 5 parts~6.5
Part；20 parts~25 parts of fire retardant；10 parts~15 parts of physical blowing agent；1.5 parts~2 parts of chemical foaming agent；B component are as follows: isocyanic acid
Ester, the isocyanates are poly methylene poly phenyl poly isocyanate；
Wherein: the total weight number of the polyether polyol A, polyether polyol B, polyester polyol C and polyester polyol D
It is 100 parts；The hydroxyl value of the polyether polyol A is 520mgKOH/g~540mgKOH/g, and the viscosity at 25 DEG C is
12000mPas~17000mPas；The polyether polyol B is flatulence slow-rebound polyether polyol, and hydroxyl value is
30mgKOH/g~40mgKOH/g；The degree of functionality of the polyester polyol C is 2, and hydroxyl value is 190mgKOH/g~200mgKOH/g,
Viscosity at 25 DEG C is 10000mPas~30000mPas；The hydroxyl value 270mgKOH/g of the polyester polyol D~
330mgKOH/g, the viscosity at 25 DEG C are 2000mPas~3000mPas.
In the application, the foam stabiliser is organic silicon surfactant；The foam stabiliser be AK8805,
The combination of one or more of AK8810 and B8532 substance；The catalyst includes catalyst I, catalyst II and catalysis
Agent III；The catalyst I is polyurethane foaming catalyst, and the polyurethane foaming catalyst includes pentamethyl divinyl three
Amine；The catalyst II is amines catalyst, and the amines catalyst is amine gel catalyst, and the catalyst II is N, N-
Dimethyl cyclohexyl amine, N, the combination of one or both of N- dimethyl benzylamine substance；The catalyst III is polyurethane trimerization
Catalyst, the catalyst III are delay type polyurethane catalyst for trimerization, and the catalyst III is 1,3,5- tri- (dimethylaminos third
Base)-Hexahydrotriazine, isooctyl acid potassium one or more of diglycol solution substance combination.
In the application, the fire retardant is three (2- chloroethyl) phosphates, three (chloro isopropyl) phosphates (TCPP), phosphoric acid
The combination of one or more of triethyl and dimethyl methyl phosphonate substance；The physical blowing agent is pentane or pentane
With the mixture of isopentane；The chemical foaming agent is water；Effect is more excellent when the chemical foaming agent is deionized water.
Present invention also provides a kind of methods for preparing PIR battenboard by pentane system combinations polyethers, include the following steps:
The preparation of S1, component A: by polyether polyol A, polyether polyol B, polyester polyol C, polyester polyol D, foam stabiliser,
Catalyst, fire retardant, physical blowing agent and chemical foaming agent are sufficiently mixed at normal temperature, obtain component A；S2, PIR sandwich
The preparation of plate: firstly, foaming after the obtained component A of step S1 is sufficiently mixed with B component, PIR foam liquid is obtained；Secondly,
After the injection of PIR foam liquid is had the die for molding of top panel and lower panel, cure under pressure, cutting, curing obtain PIR
Battenboard.The application is prepared in the preparation method of PIR battenboard, and the weight ratio of the component A and the B component is 100:
170-230。
The PIR battenboard prepared in the application includes top panel, sandwich of layers and lower panel, the upper surface of described plate and described
Lower panel is metal decking, can be color steel plate, stainless steel plate, aluminium sheet.It is foamed in the application by component A and B component
It is laminating machine that the Material temperature control of PIR foam liquid is applied in 22 DEG C~25 DEG C, the cure under pressure technique, the layer
At 55 DEG C~60 DEG C, the temperature of the curing is room temperature for the temperature control of the double crawler belts of press, and such as 25 DEG C, the time of the curing is
Greater than for 24 hours.
The present invention also provides the technology effects that six groups of specific embodiments and a comparative example are used to prove the invention
Fruit.Table one is the composition of raw materials table of the combined polyether of 1~embodiment of embodiment 6, and table two is the combined polyether of comparative example
Composition of raw materials table, the numerical value in table is parts by weight.Component in table is prepared into PIR according to the method for preparing PIR battenboard
Battenboard.
Table one: the composition of raw materials of the combined polyether of 1~embodiment of embodiment 6
Table two: the formula of the combined polyether of comparative example
Table three is the work that Examples 1 to 6 and comparative example 1 produce PIR battenboard on the continuous panel production line of PIR battenboard
Skill parameter or technical parameter, the PIR battenboard processing parameter are equally applicable to other form factor sizes, can not will be of the invention
It is defined in this, discussion is only compared with selected form factor size herein.
Three: PIR battenboard processing parameter of table
| Technical parameter | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example |
| Base plate thickness (mm) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Plate thickness (mm) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| PIR foam liquid temperature (DEG C) | 22 | 23 | 22 | 24 | 22 | 25 | 22 |
| Global density (kg/m3) | 42 | 43 | 42 | 42 | 42 | 42 | 43 |
| Laminating temperature (DEG C) | 50 | 55 | 55 | 50 | 55 | 50 | 50 |
| Curing temperature (DEG C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Curing time (h) | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
PIR battenboard is tested the temperature performance of its laminboard layer after molding cutting, and PIR folder is had recorded in test
The time that initial temperature, maximum temperature and the temperature of core plate sandwich of layers are begun to decline, as shown in table 4, during test, every
Half an hour measures record to its temperature, until temperature is begun to decline.
The time that initial temperature, maximum temperature and the temperature of four: PIR battenboard sandwich of layers of table are begun to decline
Table five is PIR battenboard after overcuring, and the metal decking of the upper surface layer of PIR battenboard and undersurface layer is gone
After removing, the test result for the properties for taking the core material of PIR battenboard to be tested.
Five: PIR battenboard sandwich of layers properties test parameter of table
In embodiment and comparative example described herein, used raw material sources are as follows: polyether polyol RF3778, it is good
Chemical limited liability company；Polyether polyol ZS-3602, Jiangsu Zhongshang Chemical Co., Ltd.'s production；Polyester polyol PS-
2002, Nanjing Nanjing Si Taipan Chemical Co., Ltd.；Polyester polyol PS-3152, Nanjing Nanjing Si Taipan Chemical Co., Ltd.；
Polyether polyol RF ED403, Jiahua Chemicals Inc.；Organic silicon surfactant AK-8805, Dehua Mei Si, Jiangsu
Learn limited liability company；Organic silicon surfactant AK-8810, Jiangsu Maysta Chemical Co., Ltd.；Organosilyl surface
Activating agent B8532, Ying Chuan Specialty Chemical Co., Ltd；Catalyst PC-5, Air Prod & Chem；Catalyst PC-8, air
Chemical products company；Catalyst PC-41, Air Prod & Chem；Catalyst TMR-2, Air Prod & Chem；Catalyst
K-15, Air Prod & Chem；Fire retardant TCPP, Jiangsu Yoke Technology Co., Ltd.；Fire retardant TCEP, Yangzhou morning
New material limited liability company；Fire retardant TEP, Jiangsu Yoke Technology Co., Ltd.；Fire retardant DMMP, Yangzhou morning green wood
Expect limited liability company；Physical blowing agent pentane, Shandong Mao Jun Chemical Industry Science Co., Ltd；Physical blowing agent isopentane, mountain
Chemical Industry Science Co., Ltd, Dong Mao army.In the application, the isocyanates is polyphenyl polymethylene polyisocyanates (PAPI),
Also known as polymeric MDI is commonly called as thick MDI, and it can be Yantai Wanhua polyurethane stock that the thick MDI, which is the product of normal sale on the market,
Part PM200 of Co., Ltd, the 44V20 of Bayer (China) Co., Ltd., Huntsman Corporation 5005 or BASF
(BASF) M20s of company, the polyphenyl polymethylene polyisocyanates M20s applied in the specific embodiment of the application are Bath
Husband (BASF) company.
In the application, the standard of the properties test item foundation of the sandwich of layers of PIR battenboard is as follows in table five:
Foam core density measurement standard: GB/T 6343-2009 " measurement of foamed plastics and rubber apparent density "；
Determination of conductive coefficients standard: GB/T 10295-2008 " Technology of Steady State Thermal Resistance of Thermal Insulating Material and the measurement hot-fluid in relation to characteristic
Meter method "；
Compressive strength testing standard: GB/T8813-2008 " measurement of rigid foam compression performance "；
Dimensional stability testing standard: GB/T8811-2008 " rigid foam dimensional stability test method "；
Water absorption rate test standard: GB/T8810-2005 " measurement of rigid foam water absorption rate "；
Rate of closed hole testing standard: the GB/T10799-2008 " survey of rigid foam aperture and closed pore volume percentage
It is fixed "；
Classification system for fire performance testing standard: GB8624 " construction material and classification of combustion properties of building materials and products ".
The application, the combined polyether formula of 1~embodiment of Application Example 6 and the combined polyether formula of Comparison study example exist
Technique in the production of PIR battenboard continuous lines does not adjust, and the equal plate face of PIR battenboard produced is smooth, and ungauged regions, expansion become
The bad phenomenons such as shape, but it is poly- to the combination of combined polyether formula and Comparison study example by 1~embodiment of Application Example 6
The properties test data of the PIR battenboard of ether formulations preparation is it can be seen that the combination of 1~embodiment of Application Example 6 is poly-
The maximum temperature of the sandwich of layers of the PIR battenboard of ether formulations preparation is more much lower than comparative example, illustrates that temperature rate-of-rise is slow, can have
The curing of the raising foam of effect；The sandwich of layers of the PIR battenboard of the combined polyether formula preparation of 1~embodiment of Application Example 6
Dimensional stability to be substantially better than comparative example.All other performances of PIR battenboard are symbols in the range of standard requirements
Close the energy-saving and environmental protection of market demands, the high-quality PIR foam battenboard of safety.
In conclusion physical blowing agent of the application by using pentane system, meets " protection ozone layer Vienna public affairs
About ", the requirement of Montreal Protocol on Substances that Deplete the Ozone Layer and " ozone depleting substances management rules ", is green
The environmentally friendly material of color environmental protection fluorine-free, reduces the pollution to environment, has fabulous developing market；The present invention is guaranteeing
The compressive strength of plate, thermal coefficient, rate of closed hole, dimensional stability and foam whole curing in the case where, by introducing
Flatulence slow-rebound polyether polyol in soft bubble low resilience formula system, flatulence slow-rebound polyether polyol energy changing section bubble
The structure in hole accelerates heat in foam to distribute, to accelerate the curing of foam, reduces the probability that PIR battenboard burns core,
The sandwich of layers of PIR battenboard combines the characteristics of flexible polyurethane foams excellent toughness, also makes the entirety of the PIR foam of preparation crisp
Property significantly improves；The PIR battenboard prepared by component of the invention without bad phenomenons such as expansion, cracking, contractions, foam
Excellent in dimensional stability (shrink, expansion rate≤1%), flame retardant property is good, reaches that plate is B2 grade compound, and with certain noise reduction
Sound function.
The application is described only in conjunction with the most practical preferred embodiment being presently considered above, it is to be understood that
Above description is not the limitation to the application, and the application is also not limited to the example above, the ordinary skill people of the art
The variations, modifications, additions or substitutions that member is made in the essential scope of the application, also should belong to the protection scope of the application.
Claims (10)
1. a kind of combined polyether, which is characterized in that be made of component A and B component, in which:
Component A includes the ingredient of following parts by weight:
B component are as follows: isocyanates；
Wherein:
The polyether polyol A, polyether polyol B, polyester polyol C and polyester polyol D total weight number be 100 parts；
The hydroxyl value of the polyether polyol A is 520mgKOH/g~540mgKOH/g, the viscosity at 25 DEG C be 12000mPas~
17000mPa·s；
The polyether polyol B is flatulence slow-rebound polyether polyol, and hydroxyl value is 30mgKOH/g~40mgKOH/g；
The degree of functionality of the polyester polyol C is 2, and hydroxyl value is 190mgKOH/g~200mgKOH/g, and the viscosity at 25 DEG C is
10000mPas~30000mPas；
Hydroxyl value 270mgKOH/g~330mgKOH/g of the polyester polyol D, the viscosity at 25 DEG C be 2000mPas~
3000mPa·s。
2. combined polyether according to claim 1, which is characterized in that the foam stabiliser is organosilicone surfactant
Agent.
3. combined polyether according to claim 1, which is characterized in that the catalyst includes catalyst I, catalyst II
With catalyst III；The catalyst I is polyurethane foaming catalyst；The catalyst II is amines catalyst；The catalyst
III is polyurethane catalyst for trimerization.
4. combined polyether according to claim 3, which is characterized in that the catalyst I is pentamethyl-diethylenetriamine；Institute
Stating catalyst II is N, N- dimethyl cyclohexyl amine, N, the combination of one or both of N- dimethyl benzylamine substance；The catalysis
Agent III is one of diglycol solution of 1,3,5- tri- (dimethylamino-propyl)-Hexahydrotriazines, isooctyl acid potassium or several
The combination of kind substance.
5. combined polyether according to claim 1, which is characterized in that the fire retardant be three (2- chloroethyl) phosphates,
The combination of one or more of three (chloro isopropyl) phosphates (TCPP), triethyl phosphate and dimethyl methyl phosphonate substance.
6. combined polyether according to claim 1, which is characterized in that the physical blowing agent be pentane or pentane with
The mixture of isopentane.
7. combined polyether according to claim 1, which is characterized in that the chemical foaming agent is water.
8. a kind of method for preparing PIR battenboard by combined polyether as claimed in any one of claims 1 to 7, feature exist
In including the following steps:
The preparation of S1, component A: polyether polyol A, polyether polyol B, polyester polyol C and polyester polyol D, foam is steady
Determine agent, catalyst, fire retardant, physical blowing agent and chemical foaming agent to be sufficiently mixed at normal temperature, obtains component A；
The preparation of S2, PIR battenboard: firstly, foaming after the obtained component A of step S1 and B component are sufficiently mixed, PIR is obtained
Foam liquid；Secondly, being cut after the injection of PIR foam liquid is had the die for molding of top panel and lower panel, cure under pressure
It cuts, room temperature curing, obtains PIR battenboard.
9. the method that combined polyether according to claim 8 prepares PIR battenboard, which is characterized in that the component A and institute
Stating B component weight ratio is 100:170-230.
10. a kind of PIR battenboard for the method preparation for preparing PIR battenboard by combined polyether according to any one of claims 8.
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