CN102733501A - Protective film for STP building exterior wall thermal-insulation fire-retardant material - Google Patents
Protective film for STP building exterior wall thermal-insulation fire-retardant material Download PDFInfo
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- CN102733501A CN102733501A CN2012102038150A CN201210203815A CN102733501A CN 102733501 A CN102733501 A CN 102733501A CN 2012102038150 A CN2012102038150 A CN 2012102038150A CN 201210203815 A CN201210203815 A CN 201210203815A CN 102733501 A CN102733501 A CN 102733501A
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Abstract
The invention discloses a protective film for an STP building exterior wall thermal-insulation fire-retardant material. The protective film comprises an aluminum-coated glass-fiber gridding cloth layer, an aluminum layer, a polyester (PET) layer, a two-way stretch nylon layer, an aluminum layer, a two-way stretch nylon layer and a compound polyethylene layer which are respectively arranged from outside to inside. Compared with the prior art, the protective film for the STP building exterior wall thermal-insulation fire-retardant material comprises the following characteristics that a flexible packaging material is good in smoothness effect and excellent in barrier effect and ageing resistance. The protective film disclosed by the invention is packaged outside a panel, and thus, not only is a protection function performed but also the barrier effect is performed on cement and adhesives, and the barrier effect is performed on temperature and noise.
Description
Technical field
The invention belongs to the fire proofing diaphragm, particularly STP building exterior wall heat preserving fire proofing diaphragm.
Background technology
STP sheet material is current at the emerging a kind of exterior-wall heat insulation fire proofing of building trade.This material heat insulation effect is excellent, and coefficient of thermal conductivity is lower than 0.008w/ (mK), and thickness has only 1 centimetre, and this is the important breakthrough of technology in the insulation industry.Normally used in the past is EPS sheet material, and thickness is about 6 centimetres to 8 centimetres, and the existing equal incendivity of conventional heat insulating material.The thickness of STP plate is merely 1/8th of common heat insulating material, and the heat-insulating and fire-proof better effects if.The product unit mass is light, and every square metre weight is about 12 kilograms behind the last wall, is merely 1/4 of the weight behind the wall on the ceramic tile.After the construction, difficult drop-off, safe.The thickness of heat insulating material can increase user's usable floor area after reducing, and reduces shared area.The heat insulation effect of STP panel material is equivalent to 5 times of conventional polyphenyl plate, 4 times of extruded sheet, 3 times of polyurethane.And this heat insulating material is an inorganic heat insulation material, and fire prevention is not fired; Nontoxic, environmental protection, long service life, can with the same equivalent life of building.Can be particularly useful for the reducing energy consumption engineering of existing building adaptable across heat insulating work newly-built, that extend civilian and utilities building exterior wall and roofing.
Because the barrier of STP sheet material own is had relatively high expectations, packaging film itself is thicker, and producting process difficulty is bigger, and it is not high to be prone to that surface finish takes place, phenomenons such as gauffer.If surface irregularity has gauffer, not only influence the outward appearance of the STP sheet material of packing, also will influence the heat insulation and heat insulation effect of finished product STP outer wall board for building.
Summary of the invention
Technical problem to be solved by this invention provides the good STP building exterior wall heat preserving fire proofing diaphragm of a kind of surface finish.
The technical scheme of technical solution problem of the present invention is: STP building exterior wall heat preserving fire proofing diaphragm is respectively aluminium-coated glass-fibre grid layer of cloth, aluminium lamination, PET polyester layer, biaxial tension nylon layer, aluminium lamination, biaxial tension nylon layer, composite polyethylene layer from outside to inside.
Preferred STP building exterior wall heat preserving fire proofing diaphragm is: by inside and outside to being: aluminium-coated glass-fibre grid cloth/7umAL/12umPET/15umBOPA/7umAL/15umBOPA/80um composite polyethylene layer.
Described composite polyethylene layer is made up of skin, middle level, internal layer; Described skin is extruded by LLDPE, medium density polyethylene, low density polyethylene (LDPE) blend, and the weight ratio of LLDPE, medium density polyethylene, low density polyethylene (LDPE) is: 4-6:4-6:1;
Described middle level is extruded by high density polyethylene (HDPE), metallocene linear-low density polyethylene blend, and the weight ratio of high density polyethylene (HDPE), metallocene linear-low density polyethylene is: 1-5:1;
Described internal layer is extruded by low density polyethylene (LDPE), metallocene linear-low density polyethylene blend, and the weight ratio of low density polyethylene (LDPE), metallocene linear-low density polyethylene is 0.5-0.3:1;
In order to improve the barriering effect in middle level, also can in the middle level, add NSC 611398, the weight ratio of NSC 611398 and metallocene linear-low density polyethylene is 0.05-0.1:1;
(1) of the present invention outermost layer has been selected fiberglass gridding cloth for use.This material has following characteristics:
1, chemical stability is good.Alkali resistant, acidproof, water-fast, water-fast mud etch, and anti-other chemical attacks;
2 and resin-bonded property strong, be soluble in styrene etc.
3, high strength, high-modulus, in light weight.
4, dimensional stability good, stiffening, smooth, be difficult for shrinkage strain, polarization is good.
5, impact resistance is better.(because of screen cloth intensity height, good toughness).
6, anti-ly go mouldy, insect protected.
Therefore 7, fire prevention, insulation, sound insulation, insulation are used for the insulation of building external and internal wall, waterproof, cracking resistance, fire-retardantly have a good effect.
(2) second layer and layer 5: adopt two aluminium foil structure designs.This product requirement has high barrier, so adopt AL as barrier layer.If adopt the thick aluminum foil of individual layer, be prone to produce in process of production break, phenomenons such as fold, and very easily rupture in the process of manufacture.Therefore, adopt the composite construction of double-deck thin aluminium foil, reduced difficulty of processing and processing cost.The use of two-layer AL has simultaneously improved obstruct intensity greatly, has reduced because the normal phase is used the possibility that causes layering, when ensureing barriering effect, has added twice protection barrier more.In addition, it can effectively isolate the ambient temperature influence indoor to building to excellent in barrier property such as light, oxygen and steam.
(3) 3-layer PETs: biaxial tension pet film.This mechanical properties of materials is good, and its toughness is maximum in thermoplastic commonly used, and the hot strength of film can compare favourably with aluminium foil, and impact strength is 3～5 times of other film, and folding resistance is good.And it has good high and low temperature resistance, can in 120 ℃ of temperature ranges, use for a long time, and short-term is used can anti-150 ℃ of high temperature, can anti--70 ℃ of low temperature, and very little to its influence during high and low temperature.The dimensional stability of packaging material in the bag process be can guarantee preferably, The comprehensive performance and product specification promoted.
(4) the 4th layers and layer 6: adopt (BOPA) nylon.Nylon is polyamide, has good obdurability, tensile strength, elongation rate and abrasion resistance, has the better physical mechanical performance; Withstand voltage, shock-resistant, the anti-puncture and anti-that can strengthen product after compound such as falls at performance; Can well protect the central AL of composite material, make it be difficult for wrinkle, fracture; Ensure the environmental suitability of product, and cost is moderate.
(5) the 7th layers of PE:, make it have good thermal viscosity ability and ageing-resistant performance through adjustment to the PE film formulation.Under the state of vacuumizing, keep good bond strength, do not reveal, indeformable.Can use for a long time during protection STP external wall material, layering does not take place in good environmental adaptability; Good physical and mechanical properties is arranged, can promote the deflection of packing;
Because what packed is STP building exterior wall heat preserving fire proofing, under the prerequisite that takes into full account the pack content characteristics, PE need have high viscosity, and the adaptation of heat-sealing must be very high.Because the heat-barrier material of packing need vacuumize packing, even trickle again aperture all can cause gas to infiltrate, not only influence heat insulation, sound insulation, flame retardant effect, also can therefore cause bigger economic loss.
Composite polyethylene of the present invention is three-layer co-extruded blow-molding polyethylene: be made up of outer (composite bed) middle level (sandwich layer) internal layer (hot sealing layer);
1), skin: chosen the moderate MDPE of density, its even molecular weight distribution has good physical mechanical strength.Add a certain proportion of metallocene PE (m-LLDPE), can improve the composite effect of this layer and time internal layer (BOPA).Add a small amount of LDPE simultaneously, can further optimize the processing characteristics of film.Both guarantee the good processing characteristics of equipment, guaranteed physical and mechanical properties, combined strength bination and the moderate barrier property of film again.
2), middle level: molding effect and the barriering effect of considering film.Selected HDPE for use, it has good iris action to gas, steam.Because longitudinal tear poor-performing in the HDPE physical and mechanical properties, fragility is big, therefore adds after the m-LLDPE, improves its machine direction tear, can guarantee good apparatus processing performance and barrier property simultaneously again.
3), internal layer: consider its sealing performance.Selected heat-sealing window broad for use, empty envelope or false envelope phenomenon can not take place in the m-LLDPE that the heat-sealing bonding performance is strong when heat-sealing.This product in the STP building board is packaged in, vacuumizes packing after produce being shaped.Good heat bonding intensity has been stopped packing the situation that gas gets into has been taken place.Because m-LLDPE density is lower, viscosity is bigger, and processing characteristics is bad, is added into processing characteristics and the molding effect of partial L DPE to improve film.
The present invention compared with prior art has following characteristics: the flatness effect of flexible packing material is good, it is excellent in barriering effect, ageing-resistant to have.It is outside that the present invention is packaged in this sheet material, except that playing defencive function, also plays the barriering effect to cement, bonding adhesive, and to barriering effects such as temperature, noises.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of composite polyethylene layer of the present invention.
Fig. 3 is a process chart of the present invention.
In Fig. 1,1 is that aluminium-coated glass-fibre grid layer of cloth, 2 is that aluminium lamination, 3 is that PET polyester layer, 4 is that biaxial tension nylon layer, 5 is the composite polyethylene layer, and 6 is that skin, 7 is that middle level, 8 is an internal layer.
The specific embodiment:
Below in conjunction with embodiment the present invention is done detailed explanation.
Fiberglass gridding cloth effluent north Anping County Hai'an company of expanded metal lath factory produces.
Its key technical indexes:
The PET the key technical indexes:
The BOPA the key technical indexes:
The AL the key technical indexes:
| Project | Index |
| Thickness (μ m) | 9 |
| Thickness deviation % | ±10 |
| The joint number, individual | ≤1 |
| The pure aluminum foil pinhole number, individual/m 2 | 0 |
The technical indicator of PE film
Embodiment 1:
Like Fig. 3, the present invention includes following operation:
A) glass fiber reticular cloth aluminize operation,
B) the AL/PET/BOPA compound working procedure,
C) the BOPA/PE compound working procedure,
D) aluminium-coated glass-fibre grid cloth/PET/BOPA/AL/BOPA/PE compound working procedure;
Described c) in the BOPA/PE compound working procedure, comprise the preparation section of PE, in preparation section,
Described skin is extruded by 40%m-LLDPE DOW5100+50%MDPE2038.68G+10%LDPE150BW blend.
Described middle level is extruded by 70%HDPE HTA108+30% m-LLDPE 1018FA blend.
Described internal layer is extruded by 30%LDPE 150BW+70%m-LLDPE PL1881G blend.
By Fig. 1, shown in 2, made film aluminium-coated glass-fibre grid cloth 1/7um aluminium lamination 2/12umPET polyester layer 3/15um biaxial tension from outside to inside nylon layer 4/7um aluminium lamination 2/15um biaxial tension nylon layer/80um composite polyethylene layer 5.Described composite polyethylene layer 5 is made up of skin 6, middle level 7, internal layer 8 from outside to inside.
Embodiment 2:
Remove described c) in the BOPA/PE compound working procedure, comprise the preparation section of PE, in preparation section,
Described skin is extruded by 50%m-LLDPE DOW5100+40%MDPE2038.68G+10%LDPE150BW blend.
Described middle level is extruded by 60%HDPE HTA108+35% m-LLDPE 1018FA, 5% NSC 611398 blend.
Described internal layer is extruded by 33.3%LDPE 150BW+66.7%m-LLDPE PL1881G blend.
Outward, all the other are identical with embodiment 1.
Embodiment 3:
Remove described c) in the BOPA/PE compound working procedure, comprise the preparation section of PE, in preparation section,
Described skin is extruded by 45%m-LLDPE DOW5100+45%MDPE2038.68G+10%LDPE150BW blend.
Described middle level is extruded by 90%HDPE HTA108+10% m-LLDPE 1018FA blend.
Described internal layer is extruded by 33.3%LDPE 150BW+66.7%m-LLDPE PL1881G blend.
Outward, all the other are identical with embodiment 1.
The technique effect of embodiment 1,2,3 is following:
Claims (6)
1.STP building exterior wall heat preserving fire proofing diaphragm is respectively aluminium-coated glass-fibre grid layer of cloth, aluminium lamination, PET polyester layer, biaxial tension nylon layer, aluminium lamination, biaxial tension nylon layer, composite polyethylene layer from outside to inside.
2. STP building exterior wall heat preserving fire proofing diaphragm according to claim 1 is characterized in that:
By inside and outside to being: aluminium-coated glass-fibre grid cloth/7um aluminium lamination/12um polyester layer/15um biaxial tension nylon layer/7um aluminium lamination/15um biaxial tension nylon layer/80um composite polyethylene layer.
3. STP building exterior wall heat preserving fire proofing diaphragm according to claim 1 is characterized in that:
Described composite polyethylene layer is made up of skin, middle level, internal layer; Described skin is extruded by LLDPE, medium density polyethylene, low density polyethylene (LDPE) blend, and the weight ratio of LLDPE, medium density polyethylene, low density polyethylene (LDPE) is: 4-6:4-6:1.
4. STP building exterior wall heat preserving fire proofing diaphragm according to claim 3 is characterized in that:
Described middle level is extruded by high density polyethylene (HDPE), metallocene linear-low density polyethylene blend, and the weight ratio of high density polyethylene (HDPE), metallocene linear-low density polyethylene is: 1-5:1.
5. STP building exterior wall heat preserving fire proofing diaphragm according to claim 4 is characterized in that:
In the middle level, add NSC 611398, the weight ratio of NSC 611398 and metallocene linear-low density polyethylene is 0.05-0.1:1.
6. STP building exterior wall heat preserving fire proofing diaphragm according to claim 3 is characterized in that:
Described internal layer is extruded by low density polyethylene (LDPE), metallocene linear-low density polyethylene blend, and the weight ratio of low density polyethylene (LDPE), metallocene linear-low density polyethylene is 0.5-0.3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203815.0A CN102733501B (en) | 2012-06-20 | 2012-06-20 | Protective film for STP building exterior wall thermal-insulation fire-retardant material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203815.0A CN102733501B (en) | 2012-06-20 | 2012-06-20 | Protective film for STP building exterior wall thermal-insulation fire-retardant material |
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| CN102733501A true CN102733501A (en) | 2012-10-17 |
| CN102733501B CN102733501B (en) | 2014-12-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103437454A (en) * | 2013-08-09 | 2013-12-11 | 青岛科瑞新型环保材料有限公司 | Internal wall thermal insulation thin-plastered wall body with waterproof vacuum insulated panel |
| CN103866926A (en) * | 2012-12-17 | 2014-06-18 | 上海建工五建集团有限公司 | Building roof heat insulation structure |
| CN104029439A (en) * | 2014-06-11 | 2014-09-10 | 上海蓝峰新型包装材料有限公司 | Fireproof heat-preserving glass-fiber aluminum-foil membrane |
| CN104652629A (en) * | 2014-12-26 | 2015-05-27 | 高俊丽 | STP (Standard Temperature and Pressure) ultrathin vacuum insulation panel for building internal wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866926A (en) * | 2012-12-17 | 2014-06-18 | 上海建工五建集团有限公司 | Building roof heat insulation structure |
| CN103437454A (en) * | 2013-08-09 | 2013-12-11 | 青岛科瑞新型环保材料有限公司 | Internal wall thermal insulation thin-plastered wall body with waterproof vacuum insulated panel |
| CN104029439A (en) * | 2014-06-11 | 2014-09-10 | 上海蓝峰新型包装材料有限公司 | Fireproof heat-preserving glass-fiber aluminum-foil membrane |
| CN104652629A (en) * | 2014-12-26 | 2015-05-27 | 高俊丽 | STP (Standard Temperature and Pressure) ultrathin vacuum insulation panel for building internal wall |
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| Publication number | Publication date |
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| CN102733501B (en) | 2014-12-10 |
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