CN104893238A - Method for producing foam heat-insulating plate - Google Patents
Method for producing foam heat-insulating plate Download PDFInfo
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- CN104893238A CN104893238A CN201510331255.0A CN201510331255A CN104893238A CN 104893238 A CN104893238 A CN 104893238A CN 201510331255 A CN201510331255 A CN 201510331255A CN 104893238 A CN104893238 A CN 104893238A
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Abstract
The invention discloses a method for producing a foam heat-insulating plate. Expanded graphite is added into raw materials, so that the compression strength can be improved, the flame retardant property of the foam heat-insulating plate can be improved, the temperature of compression molding can be controlled, volatilization of a foaming agent can be promoted, the form hole structure is good, the property of the foam heat-insulating plate can be improved, the production process is simple and feasible, and the foam heat-insulating plate produced by the process has the advantages of being good in heat-insulating effect and retarding flame, and has a wide market prospect.
Description
Technical field
The present invention relates to the production method of building materials, particularly relate to a kind of production method of foam heat-insulating board.
Background technology
Current conventional foam materials, as polystyrene board, due to advantages such as its cryoprotective effects is good, intensity is high, water-intake rate is low, light weight, easy constructions, has become the mainstay material of existing domestic and international building heat insulation system; But its plate construction loosens, and there is more space between internal particle, thermal conductivity is higher, and inflammable.Although phenolic aldehyde, urea-formaldehyde foamed plastics have the advantages such as higher heat-resisting, flame retardant properties, there is structure irregularity in it, water-intake rate is high, and particularly foam unit elongation is low, ultimate compression strength is low, fragility is large, the easy problem such as dry linting, limits the application of phenol formaldehyde foam.The present invention, mainly for existing external-wall heat-insulation material Problems existing, studies a kind of novel foam heat-insulating board.
Summary of the invention
The invention provides a kind of production method of foam heat-insulating board.For realizing object of the present invention, technical scheme of the present invention is as follows:
A production method for foam heat-insulating board, its concrete steps are:
(1) drying of raw material
Resol, tensio-active agent, polyoxyethylene glycol, fire retardant are put in vacuum drums drying machine and carry out drying, vacuum tightness is 110-120kPa, and time of drying is 3-5h;
(2) stir
Joined in electric mixer by dried raw material and stir, the temperature of stirring is 20-24 DEG C, and the speed of stirring is 100-120r/min, and the time of stirring is 6-8min;
(3) stir again
To add whipping agent in the raw material be stirred and solidifying agent carries out stirring and evenly mixing again, the speed of stirring is 80-100r/min, and the time of stirring is 1-5min;
(4) mediate
In the mixture be stirred, add the EPS bead through second time of foaming, make it fully mix with kneader;
(5) compression molding
Poured in preheated mould by kneaded mixture, and inserted fast in vacuum drying oven by mould, the temperature of loft drier is 80-90 DEG C, takes out after solidifying completely, forms finished product.
Preferably, expanded graphite is added in described step (1) Raw.
Preferably, in described step (5), the temperature of compression molding is 60-70 DEG C.
Beneficial effect: the production method that the invention provides a kind of foam heat-insulating board, expanded graphite is added in described raw material, add the flame retardant properties of foam heat-insulating board while can improving ultimate compression strength, the control of the temperature of compression molding, the volatilization of infusion of setting out can be urged, make foam structure good, improve the performance of foam heat-insulating board, this production technique is simple, with the foam heat-insulating board of this kind of explained hereafter, there is high insulating effect and there is fire-retardant advantage, there are wide market outlook.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
A production method for foam heat-insulating board, its concrete steps are:
(1) drying of raw material
Resol, tensio-active agent, expanded graphite, polyoxyethylene glycol, fire retardant are put in vacuum drums drying machine and carry out drying, vacuum tightness is 115kPa, and time of drying is 4h;
(2) stir
Joined in electric mixer by dried raw material and stir, the temperature of stirring is 22 DEG C, and the speed of stirring is 110r/min, and the time of stirring is 7min;
(3) stir again
To add whipping agent in the raw material be stirred and solidifying agent carries out stirring and evenly mixing again, the speed of stirring is 90r/min, and the time of stirring is 3min;
(4) mediate
In the mixture be stirred, add the EPS bead through second time of foaming, make it fully mix with kneader;
(5) compression molding
Poured into by kneaded mixture in preheated mould, the temperature of compression molding is 65 DEG C, and is inserted fast in vacuum drying oven by mould, and the temperature of loft drier is 85 DEG C, takes out after solidifying completely, forms finished product.
The invention provides a kind of production method of foam heat-insulating board, expanded graphite is added in described raw material, add the flame retardant properties of foam heat-insulating board while can improving ultimate compression strength, the control of the temperature of compression molding, the volatilization of infusion of setting out can be urged, make foam structure good, improve the performance of foam heat-insulating board, this production technique is simple, with the foam heat-insulating board of this kind of explained hereafter, there is high insulating effect and there is fire-retardant advantage, there are wide market outlook.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a production method for foam heat-insulating board, is characterized in that, its concrete steps are:
(1) drying of raw material
Resol, tensio-active agent, polyoxyethylene glycol, fire retardant are put in vacuum drums drying machine and carry out drying, vacuum tightness is 110-120kPa, and time of drying is 3-5h;
(2) stir
Joined in electric mixer by dried raw material and stir, the temperature of stirring is 20-24 DEG C, and the speed of stirring is 100-120r/min, and the time of stirring is 6-8min;
(3) stir again
To add whipping agent in the raw material be stirred and solidifying agent carries out stirring and evenly mixing again, the speed of stirring is 80-100r/min, and the time of stirring is 1-5min;
(4) mediate
In the mixture be stirred, add the EPS bead through second time of foaming, make it fully mix with kneader;
(5) compression molding
Poured in preheated mould by kneaded mixture, and inserted fast in vacuum drying oven by mould, the temperature of loft drier is 80-90 DEG C, takes out after solidifying completely, forms finished product.
2. the production method of a kind of foam heat-insulating board according to claim 1, is characterized in that, adds expanded graphite in described step (1) Raw.
3. the production method of a kind of foam heat-insulating board according to claim 1, is characterized in that, in described step (5), the temperature of compression molding is 60-70 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510331255.0A CN104893238A (en) | 2015-06-16 | 2015-06-16 | Method for producing foam heat-insulating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510331255.0A CN104893238A (en) | 2015-06-16 | 2015-06-16 | Method for producing foam heat-insulating plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104893238A true CN104893238A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510331255.0A Pending CN104893238A (en) | 2015-06-16 | 2015-06-16 | Method for producing foam heat-insulating plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN104893238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945219A (en) * | 2017-03-27 | 2017-07-14 | 南京越升挤出设备有限公司 | A kind of extruded polystyrene board production technology |
-
2015
- 2015-06-16 CN CN201510331255.0A patent/CN104893238A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945219A (en) * | 2017-03-27 | 2017-07-14 | 南京越升挤出设备有限公司 | A kind of extruded polystyrene board production technology |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |