CN104018588B - Make the negative-pressure penetration method of inorganic modified styrofoam - Google Patents

Make the negative-pressure penetration method of inorganic modified styrofoam Download PDF

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Publication number
CN104018588B
CN104018588B CN201410259773.1A CN201410259773A CN104018588B CN 104018588 B CN104018588 B CN 104018588B CN 201410259773 A CN201410259773 A CN 201410259773A CN 104018588 B CN104018588 B CN 104018588B
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China
Prior art keywords
styrofoam
fire proofing
negative
inorganic modified
sealing container
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Application number
CN201410259773.1A
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Chinese (zh)
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CN104018588A (en
Inventor
李传宏
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凯盟节能建材科技江苏有限公司
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Priority to CN201410259773.1A priority Critical patent/CN104018588B/en
Publication of CN104018588A publication Critical patent/CN104018588A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/24Structural elements or technologies for improving thermal insulation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/24Structural elements or technologies for improving thermal insulation
    • Y02A30/242Slab shaped vacuum insulation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10Insulation, e.g. vacuum or aerogel insulation

Abstract

The invention provides a kind of negative-pressure penetration method making inorganic modified styrofoam, comprise the following steps: preparation fire proofing material, raw material is joined in blender according to proportioning and stirs;Penetrate into, first the styrofoam of molding being put into puts in sealing container, then described fire proofing material injected in described container and seal sealing container, followed by vacuum pump to sealing container vacuum-pumping, vacuum is 55 ~ 65cmHg, it is dried, the styrofoam penetrating into fire proofing material is taken out from described container, the negative-pressure penetration method of the inorganic modified styrofoam of this making is formed by the way of evacuation in hermetic container subnormal ambient, fire proofing material can penetrate in styrofoam more easily and uniformly, and in subnormal ambient, the pressure that styrofoam is caused by air pressure is less, protection styrofoam will not be destroyed during penetrating into, and plate body will not deform after drying, ensure that structural strength and the integrity of last inorganic modified styrofoam product.

Description

Make the negative-pressure penetration method of inorganic modified styrofoam

Technical field

The present invention relates to building heat preserving technical field, particularly relate to a kind of make the negative of inorganic modified styrofoam Pressure osmosis.

Background technology

Styrofoam full name polystyrene foam plate, referred to as EPS sheet, is that utilization rate the most on the market is the highest Building heat preserving material.It is by the expandable polystyrene particle containing volatile fluid foaming agent, warp The white solid with fine hole-closing structure of hot briquetting in a mold after pre-of heating.EPS sheet can effectively be protected Revetment body, intensity length high, durable, heat-insulating property are good, and cost is low, construction simple, easy to maintenance, Therefore it is widely used in wall insulation system as a kind of insulation material of good performance.But it is traditional The fire protecting performance of EPS sheet poor, belong to combustible material, meet fire and dissolve immediately, shrink, trickle, fire Rate of propagation is fast, and burnt area is big, and can produce substantial amounts of toxic gas and smog in combustion, According to statistics, nearly injures and deaths most probably are caused by the toxic gas and dense smoke discharged because of construction material burning, serious shadow Ring the probability of surviving of survivor, increase rescue difficulty, and poison and dense smoke also can serious environment pollutions.Cause This, in order to improve the fire line of ESP plate, the method generally taked is at granules of polystyrene and fire proofing material Chinese patent " a kind of polystyrene bubble of plate, such as Application No. 200810061225.2 it is pressed into after stirring Foam plate and preparation method thereof " manufacture method of a kind of polystyrene foam plate is disclosed, comprise the following steps:

Step one, first polystyrene plastics particle is foamed into light foam particle by steam;

Step 2, preparation magnesia oxychloride cement;

Step 3, polystyrene foam grain is fully mixed and stirred with magnesia oxychloride cement, make foam particle Surface coating Magnesia oxychloride cement;

Step 4, the foam particle mixed and stirred is made magnesia oxychloride cement polystyrene foam plate.

It is exactly that magnesia oxychloride cement cannot be uniform that the manufacture method of this polystyrene foam plate exists maximum problem Be coated on polystyrene foam particles, and magnesia oxychloride cement and polystyrene foam particles gather in monoblock Also being difficult in styrenic foams plate reach equally distributed purpose, this is due to polystyrene foam particles and chlorine The proportion of oxygen magnesium cement is different, their mixture solidify in a mold during the bigger chlorine oxygen magnesium of proportion Cement can gradually deposit to bottom, causes the magnesia oxychloride cement on the surface of the polystyrene foam particles on upper strata to be wanted Less than lower floor, this either fire protecting performance or heat-insulating property to this polystyrene foam plate be all not Profit.

Also " it is poly-that a kind of pinprick legal system makes fire prevention to the Chinese patent of a kind of such as Publication No. 103174228A Styrenic foams plate " disclose a kind of pinprick legal system and make fire prevention polystyrene foam plate, comprise the following steps:

1) beating several pores on polystyrene foam plate, aperture is 0.3-3mm, and the density of punching is 3~20 Individual hole/square centimeter;

2) prefabricated silication powder and liquid material, utilizes hollow needle filling or dither note by silication powder, liquid material Enter in polystyrene foam plate pore, close acanthopore by silication liquid material;

3) dry or dry.

Although this pinprick method to be beaten several pores on polystyrene foam plate and fire proofing material is poured into carefully Kong Zhong, makes polystyrene foam plate be provided with certain fire line, but the pore owing to offering after all will not be non- Chang Duo, fire proofing material can not substantial amounts of be filled in cystosepiment, but also is the foam having most Grain does not reaches fire proofing material, and the fire protecting performance of the most this polystyrene foam plate is not satisfactory, and And the mode punched is undoubtedly a kind of destruction to cystosepiment, there is the filling of fire proofing material the most afterwards, still The laser intensity of cystosepiment can be brought adverse effect, this be also pore offer the unsuitable too much reason of quantity.

As can be seen here, although fire-type polystyrene board production and research and development in, technical staff is consciously Fire proofing material is combined with granules of polystyrene and reaches fireproof purpose by ground, but there is presently no a kind of system Fire proofing material can be dissolved in polystyrene foam plate by the method very well of making, and makes the surface of granules of polystyrene Upper uniform cladding last layer fire proofing material is technical barrier the most urgently to be resolved hurrily really.

Summary of the invention

The technical problem to be solved in the present invention is: also lack one in order to make up in the production of fire-type styrofoam Kind preferably fire proofing material can be coated on granules of polystyrene surface and not heat insulating ability, knot to styrofoam The manufacture method that the aspects such as structure intensity adversely affect, the invention provides the inorganic modified polyphenyl of a kind of making The negative-pressure penetration method of plate utilizes the fine closed pore itself existed in the styrofoam of molding by fire proofing material negative pressure Penetrate into, be evenly coated on the surface of granules of polystyrene.

The technical solution adopted for the present invention to solve the technical problems is: a kind of make inorganic modified styrofoam Negative-pressure penetration method, comprises the following steps:

Preparation fire proofing material, joins raw material in blender according to proportioning and stirs;

Penetrate into, first the styrofoam of molding is put into and put in sealing container, then by described fire proofing wood Material injects in described sealing container and seals sealing container, takes out sealing container followed by vacuum pump Vacuum, vacuum is-55~-65cmHg, described fire proofing material uniformly penetrate into from the top of described styrofoam and by Gradually solidify;

Be dried, by penetrate into fire proofing material styrofoam takes out from described sealing container, then by drying or The mode dried makes the dehydration of described fire proofing material form inorganic modified styrofoam.

As preferably, on described sealing container, the interface for evacuation is arranged near the bottom of described styrofoam.

Concrete, described fire proofing material is counted by weight and is included:

Waterglass or Ludox 60~80 parts;

Precipitated calcium carbonate, ground calcium carbonate or Kaolin 15~25 parts;

Polyacrylamide 1~2 parts;

Sodium lauryl sulphate or dodecyl sodium sulfate 0.5~1.5 parts;

Carbon dioxide 4~5 parts;

Silica aerogel 0.5~1.5 parts;

Described precipitated calcium carbonate, ground calcium carbonate or kaolinic granularity are 800~2000 mesh.

Concrete, in penetrating into step, it is first 1m by volume3, quality be 14~22kg styrofoam neatly put Be placed in described sealing container, then by fire proofing material that quality is 40~100kg from top pouring at described polyphenyl On plate.

As preferably, in preparation fire proofing material step, described blender is 5~10 to the mixing time of raw material Minute.

As preferably, will ooze again after waiting 1~3 minute after injecting described fire proofing material in described sealing container The styrofoam entering fire proofing material is taken out from container.

As preferably, in described drying steps, drying temperature is 80~100 DEG C, and drying time is 40~60 points Clock.

As preferably, further comprise the steps of:

Reclaim, collect from described sealing container bottom and do not penetrate into the fire proofing material styrofoam, and back into In described blender.

The invention has the beneficial effects as follows that traditional styrofoam has higher suction owing to there is fine closed pore Aqueous, the negative-pressure penetration method of the inorganic modified styrofoam of this making utilizes this point to be penetrated into by fire proofing material just In fine closed pore, it is coated on the surface of granules of polystyrene, forms fireprotection layer, improve fire protecting performance;Pass Fine closed pore in system styrofoam because be the space between granules of polystyrene, therefore it highly uniform point Cloth is in styrofoam, and fire proofing material penetrates into and the most uniformly envelopes granules of polystyrene, if Counting ingenious, effect is notable;It is filled with fire proofing material additionally, due in fine closed pore, reduces significantly Water absorption, makes this inorganic modified styrofoam in use performance more stable, stops to bring because of water suction Potential safety hazard, in the negative-pressure penetration method of the inorganic modified styrofoam of this making by the way of evacuation Forming subnormal ambient in hermetic container, fire proofing material can penetrate in styrofoam more easily and uniformly, and In subnormal ambient, the pressure that styrofoam is caused by air pressure is less, and protection styrofoam will not be during penetrating into Destroyed, and plate body will not be deformed after drying, it is ensured that the structure of last inorganic modified styrofoam product Intensity and integrity.

Detailed description of the invention

In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, The basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.

The invention provides a kind of negative-pressure penetration method making inorganic modified styrofoam, comprise the following steps:

Preparation fire proofing material, according to parts by weight proportioning and joins mixing time in blender by following raw material It is 8 minutes:

Waterglass or Ludox 60~80 parts;

Precipitated calcium carbonate, ground calcium carbonate or Kaolin 15~25 parts;

Polyacrylamide 1~2 parts;

Sodium lauryl sulphate or dodecyl sodium sulfate 0.5~1.5 parts;

Carbon dioxide 4~5 parts;

Silica aerogel 0.5~1.5 parts;

Described precipitated calcium carbonate, ground calcium carbonate or kaolinic granularity are 800~2000 mesh;

Penetrate into, be first 1m by volume3, quality be 14~22kg styrofoam neatly be placed in sealing container in, Then the fire proofing material that quality is 40~100kg injected in container and seal sealing container, then profit With vacuum pump to sealing container vacuum-pumping, seal and be used for the interface of evacuation on container near the bottom of styrofoam Arranging, vacuum is-65cmHg, and fire proofing material starts from top uniformly to penetrate into styrofoam, finally waits 2 Minute, allow fire proofing material be fully infiltrated in styrofoam and gradually solidify, being evenly coated on granules of polystyrene After carry out next step;

It is dried, the styrofoam penetrating into fire proofing material is taken out from sealing container, then by drying machine to every piece The styrofoam penetrating into fire proofing material is dried, and ultimately forms inorganic modified styrofoam after fire proofing material dehydration, Drying temperature is 90 DEG C, and drying time is 50 minutes.

Reclaim, collect from sealing container bottom and do not penetrate into the fire proofing material styrofoam, and back into and stir Mix in machine, for again with.

In the negative-pressure penetration method of the inorganic modified styrofoam of this making, fire proofing material relies on from the top of styrofoam The gravity of self the most uniformly penetrates in styrofoam, owing to the space between granules of polystyrene is the finest, In order to reduce infiltration difficulty, improve osmotic efficiency, vacuum pump position evacuation bottom close styrofoam, Thus to a certain degree cause air pressure bottom styrofoam less than top, internal less than outside subnormal ambient, one Space between aspect granules of polystyrene slightly increases, and still further aspect improves fire proofing material and enters space Strength, thus help the difficulty of the fine voids of fire proofing material infiltration styrofoam;It addition, subnormal ambient order is poly- The pressure that benzene plate receives is less, styrofoam will not cause strong compressing, and plate body after drying will not Deformation, advantageously ensures that the structural strength of the inorganic modified styrofoam of product and fire proofing material can be more uniformly Distribution.

If using the raw material of fire proofing material in invention and proportioning to pass through fire proofing material and polyphenyl in prior art The manufacture method of ethylene granule mixing produces, then the amount of the fire proofing material of interpolation can be greatly increased, This is due to here, and fire proofing material not only to need to be wrapped on granules of polystyrene formation fireprotection layer, more It is important that effect is to play the cementation between granules of polystyrene, in order to provide enough bonding dynamics Ensureing the laser intensity of inorganic modified styrofoam, fire proofing material proportion can increase much naturally;Further Say, in order to improve the caking property of fire proofing material, need precipitated calcium carbonate, ground calcium carbonate or Kaolin Granularity bring up to 10000~15000 mesh, for the production technology of current civil corporation, this is very difficult Reach, even and if reach such granularity, manpower and materials to be put into also are huge, so generate The product come also has no competitiveness;And the negative-pressure penetration method making inorganic modified styrofoam invented solves cleverly Determine this problem, utilized styrofoam itself to have higher structural strength, by negative pressure, fire proofing material is oozed Enter in styrofoam, thus reach to be formed on granules of polystyrene surface the purpose of fireprotection layer.

Polyacrylamide is a kind of flocculant used in the present invention, and it is high molecular weight water soluble polymer, tool There is good flocculability, enhance flocculability and the cohesive of fire proofing material in the present invention, thus strengthen anti- Bonding dynamics between fire material and granules of polystyrene, makes fire proofing material envelope polystyrene closely Grain, opens polystyrene with air insulated thoroughly, reaches to strengthen the purpose of fire protecting performance.

The sodium lauryl sulphate or the dodecyl sodium sulfate that use in the present invention are surfactants, have good Good lyotropy, strengthens precipitated calcium carbonate, ground calcium carbonate or kaolinic dissolubility with this, makes to prevent In fire material, the mixing of each component is more uniform, also improves the permeability of fire proofing material simultaneously, helps fire proofing wood Material more easily penetrates in styrofoam, and is uniformly wrapped on the surface of granules of polystyrene, helps fire proofing material Give full play to its fire line.

Silica aerogel is a kind of aeroge employed in the present invention, is the outer telogenesis solid, shaped of one, and inside is The material of space net structure.Owing to being filled with air in space net structure, air accounts for 80% left side of volume The right side, therefore the density of silica aerogel is extremely low, and heat conductivity and refractive index are extremely low, has splendid heat absolutely Edge, as the one of which component of fire proofing material, it is only necessary to little ratio just can make fire proofing material Heat conductivity reduces, it is ensured that the heat-insulating property of the inorganic modified styrofoam of this fire-type is good.It addition, silicon gas Gel seems fragile can't bear, the most sturdy and durable, can bear the high temperature and subzero 130 of 1400 degrees Celsius The low temperature of degree, helps fire proofing material improve thermostability further and resistance to freeze type.

The fire-type that the negative-pressure penetration method of the inorganic modified styrofoam of this making provided by the present invention is produced Styrofoam has the most excellent fire line, heat-insulating property and extremely low water absorption.

With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, related work Personnel can carry out various change and amendment completely in the range of without departing from this invention technological thought. The content that the technical scope of this invention is not limited in description, it is necessary to according to right Determine its technical scope.

Claims (7)

1. the negative-pressure penetration method making inorganic modified styrofoam, it is characterised in that comprise the following steps:
Preparation fire proofing material, joins raw material in blender according to proportioning and stirs;Described fire proofing material Meter by weight includes:
Waterglass or Ludox 60~80 parts;
Precipitated calcium carbonate, ground calcium carbonate or Kaolin 15~25 parts;
Polyacrylamide 1~2 parts;
Sodium lauryl sulphate or dodecyl sodium sulfate 0.5~1.5 parts;
Carbon dioxide 4~5 parts;
Silica aerogel 0.5~1.5 parts;
Described precipitated calcium carbonate, ground calcium carbonate or kaolinic granularity are 800~2000 mesh;
Penetrate into, first the styrofoam of molding is put in sealing container, then described fire proofing material is noted Enter in described sealing container and seal sealing container, followed by vacuum pump to sealing container vacuum-pumping, Vacuum is-55~-65cmHg, and described fire proofing material uniformly penetrates into from the top of described styrofoam and gradually solid Change;
Be dried, by penetrate into fire proofing material styrofoam takes out from described sealing container, then by drying or The mode dried makes the dehydration of described fire proofing material form inorganic modified styrofoam.
2. the negative-pressure penetration method making inorganic modified styrofoam as claimed in claim 1, it is characterised in that: On described sealing container, the interface for evacuation is arranged near the bottom of described styrofoam.
3. the negative-pressure penetration method making inorganic modified styrofoam as claimed in claim 1, it is characterised in that: Penetrating in step, be first 1m by volume3, quality be 14~22kg styrofoam be neatly placed in described sealing In container, then by fire proofing material that quality is 40~100kg from top pouring on described styrofoam.
4. the negative-pressure penetration method making inorganic modified styrofoam as claimed in claim 3, it is characterised in that: In preparation fire proofing material step, described blender is 5~10 minutes to the mixing time of raw material.
5. the negative-pressure penetration method making inorganic modified styrofoam as claimed in claim 3, it is characterised in that: The poly-of fire proofing material will be penetrated into again after waiting 1~3 minute after injecting described fire proofing material in described sealing container Benzene plate is from sealing taking-up container.
6. the negative-pressure penetration method making inorganic modified styrofoam as claimed in claim 3, it is characterised in that: In described drying steps, drying temperature is 80~100 DEG C, and drying time is 40~60 minutes.
7. the negative-pressure penetration method making inorganic modified styrofoam as claimed in claim 1, it is characterised in that Further comprise the steps of:
Reclaim, collect from described sealing container bottom and do not penetrate into the fire proofing material styrofoam, and back into In described blender.
CN201410259773.1A 2014-06-12 2014-06-12 Make the negative-pressure penetration method of inorganic modified styrofoam CN104018588B (en)

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CN105000829B (en) * 2015-06-13 2018-02-09 东莞美易建材有限公司 A kind of modification slurry for styrofoam
CN104961428B (en) * 2015-06-27 2017-03-15 宁夏保利节能科技有限公司 The preparation method of inorganic modified polystyrene thermal insulation plate
CN106567469B (en) * 2016-08-09 2020-09-25 吴理侃 Flame-retardant polystyrene board and preparation method thereof
CN106567467A (en) * 2016-08-09 2017-04-19 吴理侃 Fireproof polystyrene board and preparation method of the same
CN106400991A (en) * 2016-09-23 2017-02-15 济南大学 Cement permeation type polyphenyl-particle-wrapped class-A fireproof insulation board and manufacturing method thereof
CN106363937A (en) * 2016-09-23 2017-02-01 济南大学 Silica aerogel penetrating A-class fireproof heat retaining panel and manufacturing method thereof
CN106522389A (en) * 2016-11-11 2017-03-22 济南大学 Outer heat insulation system of outer walls of cement permeating wrapping polyphenyl granule fireproof heat insulation plates
CN106567466A (en) * 2016-11-11 2017-04-19 济南大学 External wall thermal insulation system provided with silica aerogel permeable fireproof insulation board
CN107457883A (en) * 2017-08-28 2017-12-12 四川大学 A kind of sheet material automatic assembly line grouting equipment and grouting method
CN108164743A (en) * 2017-12-22 2018-06-15 山东盛都节能科技有限公司 A grades of fire-proof plates of graphite and preparation method and production equipment

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US4198485A (en) * 1976-06-21 1980-04-15 Rubber Research Elastomerics, Inc. Fire resistant, expanded styrene polymer material
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