CN101475720A - Reinforced polystyrene fibre foam board - Google Patents
Reinforced polystyrene fibre foam board Download PDFInfo
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- CN101475720A CN101475720A CNA2008102373203A CN200810237320A CN101475720A CN 101475720 A CN101475720 A CN 101475720A CN A2008102373203 A CNA2008102373203 A CN A2008102373203A CN 200810237320 A CN200810237320 A CN 200810237320A CN 101475720 A CN101475720 A CN 101475720A
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Abstract
The invention relates to a polystyrene fiber foam plate, and aims to improve tensile strength and other performance indexes of the prior polystyrene plate. Preparation raw materials of the polystyrene plate comprise a synthetic fiber with length of between 5 and 30mm, and the synthetic fiber accounts for 5 to 20 percent of gross weight of the raw materials. A method for producing the polystyrene plate comprises a step of pre-frothing polystyrene particles, a step of slaking the polystyrene particles, a step of adding the synthetic fiber and a step of moulding/extrusion molding, wherein addition of the synthetic fiber is 5 to 20 percent of the gross weight of the raw materials. The polystyrene fiber foam plate and the method can effectively improve the tensile strength, bending strength and dimension stability of the polystyrene plate, and improve the impact resistance of the polystyrene plate. With the polystyrene fiber foam plate, strength and safety of a heat preservation system can be improved, wind pressure resistance of the heat preservation system can be improved, material selection range of an exterior facing of a building can be improved, and separation and deformation of a material of the exterior facing can be effectively prevented.
Description
Technical field
The present invention relates to a kind of building thermal insulation material, relate in particular to a kind of polystyrene fibre foam board.
Background technology
Styrofoam is divided into expanded polystyrene foams plate (EPS) and extruded polystyrene cystose (XPS), is by the expandable polystyrene particle that contains the volatile liquid whipping agent, pre-sends out, the slaking post moulding/be extruded into the solid plate through heating.It both can be made into different densities, difform foam article, can produce the foam board of various different thickness again.Be widely used in building, insulation, packing, freezing, daily necessities, fields such as industry casting; Also can be used for the manufacturing of exhibition hall, commodity cupboard, advertising signboard and toy.For adapting to national building energy conservation requirement, be mainly used in the outer insulation of wall body outer wall, exterior wall internal insulation, floor heating at present.
Press in the national building standard design (02J121-1), the more common A type of northern China-polystyrol plastic foam plate external insulating system for thinly plastered external wall design at present, be that styrofoam is the heat insulating layer, adopt bonding mode, be aided with the anchor select and be fixed in basic unit, and make protective layer, the external thermal insulation system of coating or tile decorative surface with anticracking grout composite glass fiber grid cloth.Styrofoam is used for A type, C type, D type, E type External Thermal Insulation System, with the A type be example its be positioned in the middle of basic unit's body of wall and the protective layer, essential structure is as shown in table 1:
Table 1 A type-polystyrol plastic foam plate external insulating system for thinly plastered external wall
Requiring the lower value of the tensile strength of polyphenyl in national building standard design atlas (02J121-1) is 1.0Mpa, and the performance requriements of the boundary material that joins with styrofoam sees Table 2, table 3.
Table 2 polystyrene board adhesive performance index
Table 3 polymers anti-cracking mortar performance index
By in table 2, the table 3 as can be seen, in this kind of heat-insulation system, styrofoam tensile strength is minimum, so the drawing requirement of experiment is destroyed the interface in styrofoam; Therefore, the intensity of styrofoam directly influences the intensity of whole insulation construction system, is the short slab place of whole heat-insulation system.
Therefore, improve A type heat-insulation system bulk strength, increase the heat-insulation system security, have only the tensile strength that improves styrofoam.
Summary of the invention
The technical problem to be solved in the present invention provides the high enhancing polystyrene fibre foam board of a kind of tensile strength.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of enhancing polystyrene fibre foam board is made by the raw material that comprises granules of polystyrene, comprises also in the described raw material that length is the synthon of 5～30mm, and these synthon account for 5～20% of raw material gross weight.
Described synthon account for 5～15% of raw material gross weight.
Described synthon account for 10～20% of raw material gross weight.
The production method of above-mentioned enhancing polystyrene fibre foam board, comprise granules of polystyrene pre-frothing, granules of polystyrene slaking, molding/extrusion molding operation, this production method also comprises the interpolation step of synthon, promptly the PS particle after slaking adds described synthon, and behind the abundant mixing, molding/extrusion molding gets final product again.
The above synthon is at least a in polypropylene fibre, tynex, trevira, the fine fiber of polypropylene, polyvinyl formal fibre, thermovyl, the polytetrafluoroethylene fiber.
The length of above-mentioned fiber can be selected according to different production technique situations, and for the expanded polystyrene veneer styrofoam, the length of fiber is advisable with 4～6 PS particle diameter length; The staple length of extrusion type styrofoam is advisable with 5～10mm.
The present invention has actively useful effect:
1. the defective that change to exist adds synthon, can effectively strengthen the tensile strength (improving 12～25%) and the dimensional stability of styrofoam, bending strength be significantly improved (25～32%);
2. the increase of the more firm styrofoam tensile strength of external insulation system makes the intensity of whole heat-insulation system increase, and increases the security of heat-insulation system;
3. the material range of choice of building exterior finish can be improved, coming off, being out of shape of exterior finishing material can be effectively prevented;
4. improve the resisting wind press capacity of whole heat-insulation system;
5. improve the shock resistance of whole heat-insulation system.
Embodiment
The production method of 1 one kinds of polystyrene fibre foam boards of embodiment (EPS), step is as follows:
(1) granules of polystyrene preparation: water-fast styrene monomer is separated into drop under suspension stabilizer and vigorous stirring, then under action of evocating, the polymer beads that is polymerized forms granules of polystyrene (being expandability PS bead) through processing such as cooling, solid-liquid separation, drying, screenings then.This polymerization process comprises two stages: one be 40 ℃ be warming up to 90 ℃ after, constant temperature polymerization 5 hours; The 2nd, be warming up to 120 ℃ again from 90 ℃, then constant temperature polyase 13 hour; Promptly add additives such as whipping agent, fire retardant before the secondary temperature elevation.The particle diameter of EPS bead is about Φ 0.5～1.5mm.
(2) the steam pre-frothing of granules of polystyrene: (the pre-frothing temperature generally is controlled at 90～105 ℃ expandability PS bead is heated to its second-order transition temperature with saturation steam in foaming machine after, pre-frothing PS particle can be controlled by temperature adjustment degree, discharge port height and feeding quantity etc.), whipping agent slowly spreads and forms the EPS macrobead of Φ 2～5mm therein.Pre-expansion time is about 3min, and therebetween, the volume of PS bead can slowly increase to original 40～80 times.
(3) the oarse-grained slaking of PS: air penetrates in the PS bead that is cooled near vacuum and prevents the moulding post shrinkage until internal and external pressure balance, and makes surplus whipping agent return to liquid state, and the curing time is 12～24h.
(4) adding the EPS particle adding length of synthon after slaking is the polypropylene fibre of 10mm, and addition is 9% (addition becomes certain inversely prroportional relationship with EPS unit weight) of raw material gross weight, and abundant mixing.
(5) molded (hydraulic pressure): the EPS macrobead is moulded the macroplate of 1 * 1.2 * 6m or other specification at big mould internal mold, and its process is divided into the stages such as mold filling, steam heating, cooling, the demoulding.
(6) drying room maintenance: the high temperature maintenance of EPS macroplate, standard code, the EPS plate should be under 60 ℃ temperature maintenance 5 days, or maintenance is no less than 42 days under field conditions (factors).
(7) cutting: the sheet material that is suitable for the engineering use that according to demand macroplate after the drying room maintenance is cut into 600 * 900 * 70mm or other specification, other shape is (for EPS, for convenient cutting, can select the fiber fusing point synthon close for use) with the PS particle.
Each stage of EPS production process generally all is intermittently that in whole process of production, pressure generally all is normal pressure or negative pressure and separate, and the temperature of process (2)～(6) is general all about 100 ℃.
The performance index of above-mentioned polystyrene fibre foam board see Table 4.
The production method of 2 one kinds of polystyrene fibre foam boards of embodiment, substantially the same manner as Example 1, difference is: length is that the addition of the polypropylene fibre of 10mm is 15% of a raw material gross weight.
The production method of 3 one kinds of polystyrene fibre foam boards of embodiment, substantially the same manner as Example 1, difference is: used fiber is that length is the polypropylene fibre of 5mm, and addition is 9% of a raw material gross weight.
The production method of 4 one kinds of polystyrene fibre foam boards of embodiment, substantially the same manner as Example 1, difference is: used fiber is that length is the thermovyl of 12mm, and addition is 20% of a raw material gross weight.
The production method of 5 one kinds of polystyrene fibre foam boards of embodiment, substantially the same manner as Example 1, difference is: used fiber is that length is the tynex of 25mm, and addition is 19% of a raw material gross weight.
The production method of 6 one kinds of polystyrene fibre foam boards of embodiment (XPS), step is as follows:
(1) behind the vacuum pre expansion expandable polystyrene particle of granules of polystyrene (PS bead) container of packing into, heating and stirring are evacuated to 50.7～66.7kPa, make remollescent PS bead foaming and intumescing, place less water again, under vacuum condition, the water heat absorption becomes 70～80 ℃ Low Temperature Steam, make the PS surface of beads cooling curing that has foamed, eliminate vacuum then, draw off the PS pellet that has foamed with the air thruster, density can be by heat-up time and vacuum degree control.
(2) the PS for some time of seasoning under certain conditions after the granules of polystyrene slaking is sent out in advance (generally places 8～10h) under the room temperature in open containers, to absorb air, make the bubble internal and external pressure balance prevent the moulding post shrinkage, and make surplus whipping agent return to liquid state, curing temperature is 22～26 ℃, and the curing time decides according to unit weight, bead shape and air conditions.
(3) add the granules of polystyrene of synthon after slaking and add the polypropylene fibre that length is 5mm (addition be raw material gross weight 7%), and abundant mixing.
(4) extrusion molding
Expandability PS bead enters in the extruder barrel, after being heated, plastifying, being compacted and extrude.Because extrudate density is higher, should add citric acid (boric acid) and sodium bicarbonate this moment in right amount, and these materials are subjected to thermogenesis to be insoluble to the gas of PS resin, are dispersed in the molten resin under pressure.After extrudate left the mould release, the gas of generation gasified immediately to expand and forms a lot of abscesses, and the decomposition gas of whipping agent enters these abscesses in the resin at this moment, and abscess is expanded continuously.Extrudate is extruded blowing, uniform plastic foam sheet material or film with regard to making fine and closely woven.
The performance index of above-mentioned extrusion molding type benzene plate see Table 5.
The production method of 7 one kinds of polystyrene fibre foam boards of embodiment (XPS), substantially the same manner as Example 5, difference is: used fiber is that length is the thermovyl of 9mm, and addition is 15% of a raw material gross weight.
The production method of 8 one kinds of polystyrene fibre foam boards of embodiment (XPS), substantially the same manner as Example 5, difference is: used fiber is that length is the polytetrafluoroethylene fiber of 6mm, and addition is 8% of a raw material gross weight.
The production method of 9 one kinds of polystyrene fibre foam boards of embodiment (XPS), substantially the same manner as Example 5, difference is: used fiber is that length is the fine fiber of polypropylene of 8mm, and addition is 18% of a raw material gross weight.
The production method of 10 1 kinds of polystyrene fibre foam boards of embodiment (XPS), substantially the same manner as Example 5, difference is: used fiber is that length is the polyvinyl formal fibre of 7mm, and addition is 8% of a raw material gross weight.
The performance index contrasts (expanded polystyrene veneer) of the different benzene plates of table 4
The performance index contrasts (extrusion molding type) of the different benzene plates of table 5
* mean " design of Henan Province's engineering construction standard " DBJT19-20-2005.
Claims (5)
1. one kind strengthens polystyrene fibre foam board, is made by the raw material that comprises granules of polystyrene, it is characterized in that comprise also in the described raw material that length is the synthon of 5～30mm, these synthon account for 5～20% of raw material gross weight.
2. enhancing polystyrene fibre foam board according to claim 1 is characterized in that described synthon account for 5～15% of raw material gross weight.
3. enhancing polystyrene fibre foam board according to claim 1 is characterized in that described synthon account for 10～20% of raw material gross weight.
4. according to the described enhancing polystyrene fibre foam board of each claim of claim 1 to 3, it is characterized in that described synthon are at least a in polypropylene fibre, tynex, trevira, the fine fiber of polypropylene, polyvinyl formal fibre, thermovyl, the polytetrafluoroethylene fiber.
5. enhancing polystyrene fibre foam board according to claim 4, it is characterized in that, its production method comprises granules of polystyrene pre-frothing, granules of polystyrene slaking, molding/extrusion molding operation, the interpolation step that also comprises synthon in addition, promptly the polystyrene after slaking adds described synthon, and behind the abundant mixing, molding/extrusion molding again.
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| CN2008102373203A CN101475720B (en) | 2008-12-31 | 2008-12-31 | Reinforced polystyrene fibre foam board |
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| CN2008102373203A CN101475720B (en) | 2008-12-31 | 2008-12-31 | Reinforced polystyrene fibre foam board |
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| CN101475720A true CN101475720A (en) | 2009-07-08 |
| CN101475720B CN101475720B (en) | 2011-04-20 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009483A (en) * | 2010-10-11 | 2011-04-13 | 内蒙古大学 | Method for producing lightweight heat-insulating board by potato or potato residue, waste plant fiber and polystyrene foam |
| CN102019700A (en) * | 2010-10-11 | 2011-04-20 | 内蒙古大学 | Method for preparing light heat preservation plate by using waste vegetable fiber, polystyrene foam and adhesive referring to polyacrylic acid and sodium salt of polyacrylic acid |
| CN103122117A (en) * | 2013-01-28 | 2013-05-29 | 胡君 | Manufacturing method of improved EPS (expandable polystyrene) board |
| CN104017286A (en) * | 2014-05-28 | 2014-09-03 | 陕西泽康实业有限公司 | Expansive type high-flame-retardancy thermal-insulation polystyrene foam molding body and manufacturing method thereof |
| CN105778317A (en) * | 2016-01-04 | 2016-07-20 | 张明威 | High-performance elastomer material |
| CN106182834A (en) * | 2015-05-08 | 2016-12-07 | 北京北鹏首豪建材集团有限公司 | Graphite plastic extrusion heated board production technology |
| CN107245197A (en) * | 2017-06-23 | 2017-10-13 | 安徽长青藤新材料有限公司 | Fiber reinforcement polystyrene foam plate |
| CN108752770A (en) * | 2018-04-19 | 2018-11-06 | 铜仁市万山区建辉新型环保建材有限公司 | A kind of modified poly ethylene cellular insulant |
| CN109749265A (en) * | 2019-02-01 | 2019-05-14 | 马清浩 | A kind of modular architectural thermal insulation material and preparation method thereof |
| CN112009954A (en) * | 2020-06-30 | 2020-12-01 | 青岛海融云人工智能科技有限公司 | Processing equipment and process for anti-tearing buffer material based on EPS modification |
-
2008
- 2008-12-31 CN CN2008102373203A patent/CN101475720B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009483A (en) * | 2010-10-11 | 2011-04-13 | 内蒙古大学 | Method for producing lightweight heat-insulating board by potato or potato residue, waste plant fiber and polystyrene foam |
| CN102019700A (en) * | 2010-10-11 | 2011-04-20 | 内蒙古大学 | Method for preparing light heat preservation plate by using waste vegetable fiber, polystyrene foam and adhesive referring to polyacrylic acid and sodium salt of polyacrylic acid |
| CN102019700B (en) * | 2010-10-11 | 2011-11-30 | 内蒙古大学 | Method for preparing light heat preservation plate by using waste vegetable fiber, polystyrene foam and adhesive referring to polyacrylic acid and sodium salt of polyacrylic acid |
| CN103122117A (en) * | 2013-01-28 | 2013-05-29 | 胡君 | Manufacturing method of improved EPS (expandable polystyrene) board |
| CN104017286A (en) * | 2014-05-28 | 2014-09-03 | 陕西泽康实业有限公司 | Expansive type high-flame-retardancy thermal-insulation polystyrene foam molding body and manufacturing method thereof |
| CN104017286B (en) * | 2014-05-28 | 2017-11-14 | 陕西泽康实业有限公司 | Intumescent high fire-retardance is incubated polystyrene foam formed body and its manufacture method |
| CN106182834A (en) * | 2015-05-08 | 2016-12-07 | 北京北鹏首豪建材集团有限公司 | Graphite plastic extrusion heated board production technology |
| CN105778317A (en) * | 2016-01-04 | 2016-07-20 | 张明威 | High-performance elastomer material |
| CN107245197A (en) * | 2017-06-23 | 2017-10-13 | 安徽长青藤新材料有限公司 | Fiber reinforcement polystyrene foam plate |
| CN108752770A (en) * | 2018-04-19 | 2018-11-06 | 铜仁市万山区建辉新型环保建材有限公司 | A kind of modified poly ethylene cellular insulant |
| CN109749265A (en) * | 2019-02-01 | 2019-05-14 | 马清浩 | A kind of modular architectural thermal insulation material and preparation method thereof |
| CN109749265B (en) * | 2019-02-01 | 2021-04-30 | 陕西盛世铭鸿新材料有限公司 | Modular building thermal insulation material and preparation method thereof |
| CN112009954A (en) * | 2020-06-30 | 2020-12-01 | 青岛海融云人工智能科技有限公司 | Processing equipment and process for anti-tearing buffer material based on EPS modification |
| CN112009954B (en) * | 2020-06-30 | 2022-04-29 | 湖南兆禹节能科技股份有限公司 | Processing equipment and process for anti-tearing buffer material based on EPS modification |
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| CN101475720B (en) | 2011-04-20 |
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