CN106750487A - The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate - Google Patents
The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate Download PDFInfo
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- CN106750487A CN106750487A CN201611115670.3A CN201611115670A CN106750487A CN 106750487 A CN106750487 A CN 106750487A CN 201611115670 A CN201611115670 A CN 201611115670A CN 106750487 A CN106750487 A CN 106750487A
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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
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/54—Polycondensates of aldehydes
- C08G18/542—Polycondensates of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0058—≥50 and <150kg/m3
-
- 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
-
- 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
-
- 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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- 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
Landscapes
- 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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to synthetic resin and plastics arts, and in particular to a kind of preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate.The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate, takes MDI Type Polyurethane Prepolymers and is embedded in closed container with acetone, stirring reaction under water bath condition, then heats up, and quick stirring reaction is obtained polyurethane-modified dose；（2）By in polyurethane-modified dose of addition phenolic resin, quickly stirred under normal temperature；Tween 80 is sequentially added, foaming agent stirs；Acid curing agent is eventually adding, high-speed stirred is poured into foaming, mold filling shaping in the preheated mold for scribble releasing agent；After shaping, curing in baking oven is continued at, obtain phenolic foam heat insulation plate.Novel phenolic foam thermal insulation effect that the present invention is made is good, excellent in mechanical performance.
Description
Technical field
The present invention relates to synthetic resin and plastics arts, and in particular to a kind of base polyurethane prepolymer for use as toughening metlbond foam
The preparation method of warming plate.
Background technology
A series of energy-saving design in construction rule have been formulated in great attention with the whole world to energy problem, country and place in succession
Model.Therefore, good heat insulating, low-cost organic insulation material（Such as molding, extruded polystyrene foam board）Extensively should
For in the public exterior-wall heat insulation with civil buildings.Although this efficiently solves power saving, great fire is brought
Potential safety hazard, causes many fire disaster accidents frequently to occur, and incident is huge economic loss, great casualties
And environmental pollution.Therefore, exploitation Novel flame-retardant thermal insulation material turns into current key subjects in the urgent need to address.
Phenol formaldehyde foam as energy-saving fire proof material of new generation, 10 min, only superficial charring are sprayed under 1700 DEG C of flame and
Will not be burnt, there is non-ignitable, high insulating effect, these advantages are become the optimal of external wall heat insulating material for external
Selection.The shortcomings of current phenol formaldehyde foam also has fragility high, easy efflorescence, low intensity in work progress, limits the extensive of it
Using.For the deficiency in phenol formaldehyde foam performance, a series of research work are carried out.There is research to use the isocyanide of diphenyl methane two
Acid esters（MDI）Type Polyurethane Prepolymer toughening metlbond foam, reduces the efflorescence degree of phenol formaldehyde foam；But MDI type polyurethanes are pre-
Aggressiveness reactivity is high, the poor compatibility with phenolic resin, is restricted its production and application.
The content of the invention
The present invention is directed to propose a kind of preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate.
Technical program of the present invention lies in：
The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate, comprises the following steps：
（1）Polyurethane-modified dose of preparation
Take MDI Type Polyurethane Prepolymers to be embedded in closed container with acetone, stirring reaction under water bath condition, then be warmed up to 80
DEG C, the min of quick stirring reaction 15 is obtained polyurethane-modified dose；
（2）The preparation of phenol formaldehyde foam
By in polyurethane-modified dose of 100 phr phenolic resin of addition of 2 ~ 8 phr, quickly stirred under normal temperature；Sequentially add 4
Phr Tween-80s, 12 phr foaming agents, high-speed stirred is uniform again；It is eventually adding 9 phr acid curing agents, high-speed stirred, etc.
When foam turns white, foaming, mold filling shaping in the preheated mold for scribble releasing agent are poured into immediately；After shaping, baking oven is continued at
Interior curing, obtains phenolic foam heat insulation plate.
Described MDI Type Polyurethane Prepolymers are 3: 1 with the mass ratio of acetone.
The temperature of described water bath condition is 65 ~ 70 DEG C, and mixing time is 10 ~ 12 min.
Described foaming agent is pentane.
The curing temperature of described baking oven is 65 ~ 70 DEG C, and the curing time is 1.5 ~ 2h.
The technical effects of the invention are that：
Novel phenolic foam thermal insulation effect that the present invention is made is good, excellent in mechanical performance.Thermal conductivity factor is 0.030 W/（m·K）；
Hardness is big, and apparent density is up to 40 ~ 60 kg/m3；Good toughness, bending strength reaches 2.1MPa, and compressive strength raising 16.5% is reachable
0.134 MPa。
Specific embodiment
The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate, comprises the following steps：
Embodiment 1
（1）Polyurethane-modified dose of preparation
Take MDI Type Polyurethane Prepolymers to be embedded in closed container with acetone, stirring reaction under water bath condition, then be warmed up to 80
DEG C, the min of quick stirring reaction 15 is obtained polyurethane-modified dose；
（2）The preparation of phenol formaldehyde foam
By in polyurethane-modified dose of 100 phr phenolic resin of addition of 2 ~ 8 phr, quickly stirred under normal temperature；Sequentially add 4
Phr Tween-80s, 12 phr foaming agents, high-speed stirred is uniform again；It is eventually adding 9 phr acid curing agents, high-speed stirred, etc.
When foam turns white, foaming, mold filling shaping in the preheated mold for scribble releasing agent are poured into immediately；After shaping, baking oven is continued at
Interior curing, obtains phenolic foam heat insulation plate.
Embodiment 2
（1）Polyurethane-modified dose of preparation
Take MDI Type Polyurethane Prepolymers to be embedded in closed container with acetone, stirring reaction under water bath condition, then be warmed up to 80
DEG C, the min of quick stirring reaction 15 is obtained polyurethane-modified dose；
（2）The preparation of phenol formaldehyde foam
By in polyurethane-modified dose of 100 phr phenolic resin of addition of 2 ~ 8 phr, quickly stirred under normal temperature；Sequentially add 4
Phr Tween-80s, 12 phr foaming agents, high-speed stirred is uniform again；It is eventually adding 9 phr acid curing agents, high-speed stirred, etc.
When foam turns white, foaming, mold filling shaping in the preheated mold for scribble releasing agent are poured into immediately；After shaping, baking oven is continued at
Interior curing, obtains phenolic foam heat insulation plate.
Wherein, described MDI Type Polyurethane Prepolymers are 3: 1 with the mass ratio of acetone.The temperature of described water bath condition
It it is 65 ~ 70 DEG C, mixing time is 10 ~ 12 min.Described foaming agent is pentane.The curing temperature of described baking oven be 65 ~
70 DEG C, the curing time is 1.5 ~ 2h.
Embodiment 3
（1）Polyurethane-modified dose of preparation
Take MDI Type Polyurethane Prepolymers to be embedded in closed container with acetone, stirring reaction under water bath condition, then be warmed up to 80
DEG C, the min of quick stirring reaction 15 is obtained polyurethane-modified dose；
（2）The preparation of phenol formaldehyde foam
By in polyurethane-modified dose of 100 phr phenolic resin of addition of 2 ~ 8 phr, quickly stirred under normal temperature；Sequentially add 4
Phr Tween-80s, 12 phr foaming agents, high-speed stirred is uniform again；It is eventually adding 9 phr acid curing agents, high-speed stirred, etc.
When foam turns white, foaming, mold filling shaping in the preheated mold for scribble releasing agent are poured into immediately；After shaping, baking oven is continued at
Interior curing, obtains phenolic foam heat insulation plate.
Wherein, described MDI Type Polyurethane Prepolymers are 3: 1 with the mass ratio of acetone.The temperature of described water bath condition
It it is 65 ~ 70 DEG C, mixing time is 10 ~ 12 min.Described foaming agent is pentane.The curing temperature of described baking oven be 65 ~
70 DEG C, the curing time is 1.5 ~ 2h.
Claims (5)
1. the preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate, it is characterised in that：Comprise the following steps：
（1）Polyurethane-modified dose of preparation
Take MDI Type Polyurethane Prepolymers to be embedded in closed container with acetone, stirring reaction under water bath condition, then be warmed up to 80
DEG C, the min of quick stirring reaction 15 is obtained polyurethane-modified dose；
（2）The preparation of phenol formaldehyde foam
By in polyurethane-modified dose of 100 phr phenolic resin of addition of 2 ~ 8 phr, quickly stirred under normal temperature；Sequentially add 4
Phr Tween-80s, 12 phr foaming agents, high-speed stirred is uniform again；It is eventually adding 9 phr acid curing agents, high-speed stirred, etc.
When foam turns white, foaming, mold filling shaping in the preheated mold for scribble releasing agent are poured into immediately；After shaping, baking oven is continued at
Interior curing, obtains phenolic foam heat insulation plate.
2. the preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate according to claim 1, it is characterised in that：
Described MDI Type Polyurethane Prepolymers are 3: 1 with the mass ratio of acetone.
3. the preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate according to claim 1, it is characterised in that：
The temperature of described water bath condition is 65 ~ 70 DEG C, and mixing time is 10 ~ 12 min.
4. the preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate according to claim 1, it is characterised in that：
Described foaming agent is pentane.
5. the preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate according to claim 1, it is characterised in that：
The curing temperature of described baking oven is 65 ~ 70 DEG C, and the curing time is 1.5 ~ 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115670.3A CN106750487A (en) | 2016-12-07 | 2016-12-07 | The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115670.3A CN106750487A (en) | 2016-12-07 | 2016-12-07 | The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate |
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| CN106750487A true CN106750487A (en) | 2017-05-31 |
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| CN201611115670.3A Pending CN106750487A (en) | 2016-12-07 | 2016-12-07 | The preparation method of base polyurethane prepolymer for use as toughening metlbond foam warming plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354670A (en) * | 2018-10-17 | 2019-02-19 | 山东润义金新材料科技股份有限公司 | Three component coal mine polyurethane modified phenol formaldehyde resin packing materials and preparation method thereof |
| CN110372990A (en) * | 2019-07-17 | 2019-10-25 | 江苏中电创达建设装备科技有限公司 | A kind of Phonelic foam sandwich board preparation method and the battenboard with this method production |
-
2016
- 2016-12-07 CN CN201611115670.3A patent/CN106750487A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354670A (en) * | 2018-10-17 | 2019-02-19 | 山东润义金新材料科技股份有限公司 | Three component coal mine polyurethane modified phenol formaldehyde resin packing materials and preparation method thereof |
| CN110372990A (en) * | 2019-07-17 | 2019-10-25 | 江苏中电创达建设装备科技有限公司 | A kind of Phonelic foam sandwich board preparation method and the battenboard with this method production |
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Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |