CN106928645A - The preparation method of the phenolic foam material with heat insulating ability high - Google Patents
The preparation method of the phenolic foam material with heat insulating ability high Download PDFInfo
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- CN106928645A CN106928645A CN201710097146.6A CN201710097146A CN106928645A CN 106928645 A CN106928645 A CN 106928645A CN 201710097146 A CN201710097146 A CN 201710097146A CN 106928645 A CN106928645 A CN 106928645A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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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
- C08J9/10—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/108—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond in a heterocyclic ring containing at least one carbon atom
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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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
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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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
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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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)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of preparation method of the phenolic foam material with heat insulating ability high, including：Step one, 83 87 parts of thermoset phenolic resins according to the mass fraction, 23 parts of zinc powders, 0.5 0.8 parts of aluminium powder, 24 parts of hexa are positioned in container；Step 2, continue to be heated to 55 58 DEG C, heating rate is controlled at 1 DEG C/min, adds glass fibre, and the length of glass fibre is 100 200 μm；Temperature is reduced to 50 DEG C afterwards, rate of temperature fall controls 0.3 DEG C/min, and is incubated at 50 DEG C, and continuously adds glass fibre, length is 50 60 μm；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；Step 3, it is warming up to 65 70 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 10 15 minutes.Present invention addition glass fibre, and improve its reaction process parameter, and then improve its heat-insulating property.
Description
Technical field
The present invention relates to a kind of preparation method of the phenolic foam material with heat insulating ability high.
Background technology
Phenolic foam material initially enters wall with its excellent heat-insulating property, chemical stability and fire resistance higher
Body field of heat insulating materials.But its foam brittleness is big, stronger than polyurethane foam and polystyrene extrusion molding foam-board in equal densities
Degree is low, and this just makes it receive certain limitation as wall heat insulation material.But the heat-insulating property of current phenolic foam material
It is preferable not enough, it is impossible to which that satisfaction is actually needed.
The content of the invention
For above-mentioned technical problem, the present invention has designed and developed a kind of preparation of the phenolic foam material with heat insulating ability high
Method.
The present invention provide technical scheme be：
A kind of preparation method of the phenolic foam material with heat insulating ability high, including：
Step one, 83-87 parts of thermoset phenolic resin according to the mass fraction, 2-3 parts of zinc powder, 0.5-0.8 parts of aluminium powder,
2-4 parts of hexa is positioned in container, is stirred, and mixing time is 1-2 hours, and 40-45 DEG C is heated to afterwards,
Insulation 1-1.5 hours；
After step 2, insulation terminate, continue to be heated to 55-58 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Mix side and add glass fibre, the length of glass fibre is 100-200 μm, and mixing time continues 20-30 minutes；Temperature is dropped afterwards
As little as 50 DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass
Fiber, the length of glass fibre is 50-60 μm, and the consumption of the glass fibre for adding twice is the mixture that the step one is obtained
Gross weight 2%；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65-70 DEG C again, heating rate is controlled at 0.2 DEG C/min, curing reaction 10-15 minutes.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, the glass fibre
Length is 150-180 μm.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step one, press
83 parts of thermoset phenolic resins of mass fraction meter, 2 parts of zinc powders, 0.5 part of aluminium powder, 2 parts of hexa is positioned over appearance
In device.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step one, stir
The time is mixed for 1 hour, 40 DEG C are heated to afterwards, be incubated 1 hour.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step 2, protect
After temperature terminates, continue to be heated to 55 DEG C, insulation adds glass fibre while stirring, and mixing time continues 20-30 minutes.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step 3, then
It is warming up to 70 DEG C, curing reaction 15 minutes.
The preparation method of the phenolic foam material with heat insulating ability high of the present invention adds glass during the course of the reaction
Fiber, and improve its reaction process parameter, and then improve its heat-insulating property.
Specific embodiment
The present invention is described in further detail below, with make those skilled in the art with reference to specification word being capable of evidence
To implement.
The present invention provides a kind of preparation method of the phenolic foam material with heat insulating ability high, including：
Step one, 83-87 parts of thermoset phenolic resin according to the mass fraction, 2-3 parts of zinc powder, 0.5-0.8 parts of aluminium powder,
2-4 parts of hexa is positioned in container, is stirred, and mixing time is 1-2 hours, and 40-45 DEG C is heated to afterwards,
Insulation 1-1.5 hours；
After step 2, insulation terminate, continue to be heated to 55-58 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Mix side and add glass fibre, the length of glass fibre is 100-200 μm, and mixing time continues 20-30 minutes；Temperature is dropped afterwards
As little as 50 DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass
Fiber, the length of glass fibre is 50-60 μm, and the consumption of the glass fibre for adding twice is the mixture that the step one is obtained
Gross weight 2%；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65-70 DEG C again, heating rate is controlled at 0.2 DEG C/min, curing reaction 10-15 minutes.
The preparation method of the phenolic foam material with heat insulating ability high of the present invention adds glass during the course of the reaction
Fiber, and improve its reaction process parameter, and then improve its heat-insulating property.The foaming of the preparation-obtained foamed material of the present invention
Functional, coefficient of foaming reaches more than 12 times, and with good heat-insulating property.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, the glass fibre
Length is 150-180 μm.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step one, press
83 parts of thermoset phenolic resins of mass fraction meter, 2 parts of zinc powders, 0.5 part of aluminium powder, 2 parts of hexa is positioned over appearance
In device.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step one, stir
The time is mixed for 1 hour, 40 DEG C are heated to afterwards, be incubated 1 hour.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step 2, protect
After temperature terminates, continue to be heated to 55 DEG C, insulation adds glass fibre while stirring, and mixing time continues 20-30 minutes.
Preferably, in the preparation method of the described phenolic foam material with heat insulating ability high, in the step 3, then
It is warming up to 70 DEG C, curing reaction 15 minutes.
Embodiment one
Step one, 83 parts of thermoset phenolic resins according to the mass fraction, 2 parts of zinc powders, 0.5 part of aluminium powder, the six of 2-4 parts
Methenamine is positioned in container, is stirred, and mixing time is 1 hour, and 40 DEG C are heated to afterwards, is incubated 1 hour；
After step 2, insulation terminate, continue to be heated to 55 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-200 μm, and mixing time continues 20 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 10 minutes.
Embodiment two
Step one, 87 parts of thermoset phenolic resins according to the mass fraction, 3 parts of zinc powders, 0.8 part of aluminium powder, the six of 4 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 2 hours, and 45 DEG C are heated to afterwards, is incubated 1.5 hours；
After step 2, insulation terminate, continue to be heated to 58 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-150 μm, and mixing time continues 30 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 70 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 15 minutes.
Embodiment three
Step one, 87 parts of thermoset phenolic resins according to the mass fraction, 3 parts of zinc powders, 0.8 part of aluminium powder, the six of 2 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 2 hours, and 45 DEG C are heated to afterwards, is incubated 1 hour；
After step 2, insulation terminate, continue to be heated to 55 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-180 μm, and mixing time continues 20 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 70 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 10 minutes.
Example IV
Step one, 85 parts of thermoset phenolic resins according to the mass fraction, 2 parts of zinc powders, 0.5 part of aluminium powder, the six of 2-4 parts
Methenamine is positioned in container, is stirred, and mixing time is 1 hour, and 42 DEG C are heated to afterwards, is incubated 1 hour；
After step 2, insulation terminate, continue to be heated to 55 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 150-180 μm, and mixing time continues 25 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 13 minutes.
Embodiment five
Step one, 87 parts of thermoset phenolic resins according to the mass fraction, 2.5 parts of zinc powders, 0.7 part of aluminium powder, the six of 3 parts
Methenamine is positioned in container, is stirred, and mixing time is 1 hour, and 40 DEG C are heated to afterwards, is incubated 1 hour；
After step 2, insulation terminate, continue to be heated to 55 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 150-200 μm, and mixing time continues 25 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 67 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 10 minutes.
Embodiment six
Step one, 86 parts of thermoset phenolic resins according to the mass fraction, 2 parts of zinc powders, 0.5 part of aluminium powder, the six of 2 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 1 hour, and 40 DEG C are heated to afterwards, is incubated 1 hour；
After step 2, insulation terminate, continue to be heated to 58 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 150-180 μm, and mixing time continues 22 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 66 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 12 minutes.
Embodiment seven
Step one, 87 parts of thermoset phenolic resins according to the mass fraction, 3 parts of zinc powders, 0.8 part of aluminium powder, the six of 4 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 1-2 hours, and 44 DEG C are heated to afterwards, is incubated 1.3 hours；
After step 2, insulation terminate, continue to be heated to 58 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-200 μm, and mixing time continues 30 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 70 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 15 minutes.
Embodiment eight
Step one, 87 parts of thermoset phenolic resins according to the mass fraction, 3 parts of zinc powders, 0.6 part of aluminium powder, the six of 2 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 1 hour, and 42 DEG C are heated to afterwards, is incubated 1.3 hours；
After step 2, insulation terminate, continue to be heated to 55 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-120 μm, and mixing time continues 22 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 66 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 10 minutes.
Embodiment nine
Step one, 85 parts of thermoset phenolic resins according to the mass fraction, 2 parts of zinc powders, 0.6 part of aluminium powder, the six of 3 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 1 hour, and 42 DEG C are heated to afterwards, is incubated 1.3 hours；
After step 2, insulation terminate, continue to be heated to 56 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-200 μm, and mixing time continues 20 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 10 minutes.
Embodiment ten
Step one, 87 parts of thermoset phenolic resins according to the mass fraction, 3 parts of zinc powders, 0.8 part of aluminium powder, the six of 4 parts are sub-
Tetramine is positioned in container, is stirred, and mixing time is 2 hours, and 45 DEG C are heated to afterwards, is incubated 1.5 hours；
After step 2, insulation terminate, continue to be heated to 57 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 160-200 μm, and mixing time continues 27 minutes；Temperature is reduced to 50 afterwards
DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre, glass
The length of glass fiber is 50-60 μm, and the consumption of the glass fibre for adding twice is the gross weight of the mixture that the step one is obtained
The 2% of amount；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65 DEG C again, heating rate is controlled in 0.2 DEG C/min, curing reaction 15 minutes.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details.
Claims (6)
1. a kind of preparation method of the phenolic foam material with heat insulating ability high, it is characterised in that including：
Step one, 83-87 parts of thermoset phenolic resin according to the mass fraction, 2-3 parts of zinc powder, 0.5-0.8 parts of aluminium powder, 2-4
The hexa of part is positioned in container, is stirred, and mixing time is 1-2 hours, and 40-45 DEG C is heated to afterwards, is protected
It is warm 1-1.5 hours；
After step 2, insulation terminate, continue to be heated to 55-58 DEG C, heating rate is controlled at 1 DEG C/min, insulation, while stirring
Glass fibre is added, the length of glass fibre is 100-200 μm, and mixing time continues 20-30 minutes；Temperature is reduced to afterwards
50 DEG C, rate of temperature fall controls 0.3 DEG C/min, and is incubated 20 minutes at 50 DEG C, lasting stirring, and continuously adds glass fibre,
The length of glass fibre is 50-60 μm, and the consumption of the glass fibre for adding twice is the total of the mixture that the step one is obtained
The 2% of weight；The stir speed (S.S.) stirred twice in step 2 is 180 revs/min；
Step 3, it is warming up to 65-70 DEG C again, heating rate is controlled at 0.2 DEG C/min, curing reaction 10-15 minutes.
2. there is the preparation method of the phenolic foam material of heat insulating ability high as claimed in claim 1, it is characterised in that the glass
The length of glass fiber is 150-180 μm.
3. there is the preparation method of the phenolic foam material of heat insulating ability high as claimed in claim 2, it is characterised in that the step
In rapid one, 83 parts of thermoset phenolic resins according to the mass fraction, 2 parts of zinc powders, 0.5 part of aluminium powder, 2 parts of hexa
It is positioned in container.
4. there is the preparation method of the phenolic foam material of heat insulating ability high as claimed in claim 2, it is characterised in that the step
In rapid one, mixing time is 1 hour, and 40 DEG C are heated to afterwards, is incubated 1 hour.
5. there is the preparation method of the phenolic foam material of heat insulating ability high as claimed in claim 2, it is characterised in that the step
In rapid two, after insulation terminates, continue to be heated to 55 DEG C, insulation adds glass fibre while stirring, and mixing time continues 20-30
Minute.
6. there is the preparation method of the phenolic foam material of heat insulating ability high as claimed in claim 2, it is characterised in that the step
In rapid three, then it is warming up to 70 DEG C, curing reaction 15 minutes.
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| CN103012833A (en) * | 2012-12-26 | 2013-04-03 | 青岛科瑞新型环保材料有限公司 | Phenolic foamed plastic |
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2017
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