CN106042535A - Heat-insulating composite for building walls and preparation method thereof - Google Patents

Heat-insulating composite for building walls and preparation method thereof Download PDF

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Publication number
CN106042535A
CN106042535A CN201610369159.XA CN201610369159A CN106042535A CN 106042535 A CN106042535 A CN 106042535A CN 201610369159 A CN201610369159 A CN 201610369159A CN 106042535 A CN106042535 A CN 106042535A
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China
Prior art keywords
polypropylene
layer
heat
nonwoven layer
antiseized
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CN201610369159.XA
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Chinese (zh)
Inventor
黄文胜
慕春霞
谢国东
张卫东
荆晓飞
李敏
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Dongying handsome Purification Technology Co., Ltd.
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SHANDONG JOFO NON-WOVEN Co Ltd
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Publication of CN106042535A publication Critical patent/CN106042535A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Abstract

The application discloses a heat-insulating composite for building walls and a preparation method thereof. The heat-insulating composite of the application comprises a first polypropylene ant-sticking nonwoven layer, a polypropylene melt-blown nonwoven layer, a polypropylene flashed nonwoven layer and a second polypropylene ant-sticking nonwoven layer that are stacked, combined and solidified in order; the first polypropylene ant-sticking nonwoven layer and the second polypropylene ant-sticking nonwoven layer are added with an antiaging agent, and the fiber surface of the polypropylene flashed nonwoven layer has cavity structure; the heat-insulating composite of the application is added with the polypropylene melt-blown nonwoven layer and the polypropylene flashed nonwoven layer between the two polypropylene anti-sticking nonwoven layers, and the heat-insulating composite has good heat-insulating effect, is waterproof, moisture-proof and breathable and is good in aging resistance; a new heat-insulating composite with excellent heat insulation is provided for building wall heat-insulating materials.

Description

A kind of heat-preserving complex material for construction wall and preparation method thereof
Technical field
The application relates to building material field, particularly relates to a kind of heat-preserving complex material for construction wall and system thereof Preparation Method.
Background technology
Society, along with the raising of people's living standard, requires more and more higher to the living condition in house.Pass The construction wall of system is all to use solid clay brick or armored concrete, in design in order to play insulation effect would generally be by Wall inclination becomes double-deck or sandwich, but its heat insulation effect is limited.Traditional construction material is difficult to meet the need of people Ask.Therefore the New Building Materials of multiple types arise at the historic moment, and from the point of view of current trend, the development of building material material also will be held Continuous growth, and bigger contribution will be made for China's economic growth.
Existing wall heat insulation material, generally uses plastic foamboard, rubber slab etc..The high insulating effect of these materials, But the most corrosion-resistant, and the most aging；In the case of any process, the ageing time of these materials is 1 year, through special After process, ageing time at most can extend to 3 years.And although some materials are corrosion-resistant, resisting fatigue, but in terms of heat-insulating property There are again some differences, such as stepless sheet material, glass bead, granular polystyrene etc., not only construct comparatively laborious, and heat-insulation system performance There is the hidden danger of hollowing and cracking, heat-insulating property is poor.Therefore, in wall heat insulation material field, how by Conventional insulation Plurality of advantages merge, develop the research that good heat insulating, aging-resistant compound insulating material are current building fields Emphasis and difficult point.
Summary of the invention
The purpose of the application is to provide a kind of heat-preserving complex material of new construction for construction wall and preparation method thereof.
The application have employed techniques below scheme:
The one side of the application discloses a kind of heat-preserving complex material for construction wall, including sequentially stacking composite solid The first antiseized nonwoven layer of polypropylene of knot, polypropylene melt-blown nonwoven fabric layer, polyethylene flash-spun nonwovens layer and second The antiseized nonwoven layer of polypropylene；The first antiseized nonwoven layer of polypropylene and the antiseized nonwoven layer of the second polypropylene add Age resister, the fiber surface of polypropylene melt-blown nonwoven fabric layer is had to have void structure.
It should be noted that the application takes the lead in the non-woven material of MULTILAYER COMPOSITE is applied to construction wall, as building The insulation material of body of wall；Although wherein polypropylene melt-blown nonwoven fabric layer is typical, there is the non-woven of good heat preservation effect Material, but, owing to its stretch-proof strength is little, it is more easily damaged during processing or using, therefore, does not use it for The research of construction wall or report；Each layer is organically combined by the application, makes the composite prepared disclosure satisfy that construction wall The use demand of insulation material.In a kind of implementation of the application, warming rate can reach 62%, has and is well incubated effect Really.
Preferably, the first antiseized nonwoven layer of polypropylene and the antiseized nonwoven layer of the second polypropylene and grammes per square metre be 40～ 100g/m2。
Preferably, the grammes per square metre of polypropylene melt-blown nonwoven fabric layer is 40～50g/m2。
Preferably, the grammes per square metre of polyethylene flash-spun nonwovens layer is 40～50g/m2。
The another side of the application discloses the preparation method of the heat-preserving complex material of the application, including, it is former with polypropylene Material, uses spun-bond process to prepare the first antiseized nonwoven layer of polypropylene and the antiseized nonwoven layer of the second polypropylene respectively, uses Meltblown prepares polypropylene melt-blown nonwoven fabric layer, with polyethylene as raw material, uses flash method to prepare polyethylene flash distillation non-woven Layer of cloth；Then, lapping in order, compound consolidation forms heat-preserving complex material.
Wherein, lapping refers in order, carries out lapping according to the structural order of the heat-preserving complex material of the application, specifically For, the first antiseized nonwoven layer of polypropylene, polypropylene melt-blown nonwoven fabric layer, polyethylene flash-spun nonwovens layer and second are poly- The antiseized nonwoven layer of propylene.It addition, in the application, compound consolidation can use the compound consolidation style of routine, does not does at this Concrete restriction.
It should be noted that the application's it is critical only that each layer organically combines the heat-preserving complex material forming the application, extremely In concrete spun-bond process, meltblown, flash method etc., it is referred to existing non-weaving cloth preparation technology, does not do concrete limit at this Fixed.
Preferably, spun-bond process is used to prepare the first antiseized nonwoven layer of polypropylene and the anti-bonded non-woven of the second polypropylene During Ceng, promote the vertically and horizontally strength of spunbonded materials by the mode of cross lapping, make vertically and horizontally strength ratio reach 1:1.
Preferably, spun-bond process is used to prepare the first antiseized nonwoven layer of polypropylene and the anti-bonded non-woven of the second polypropylene During Ceng, when polypropylene fibre sprays from spinneret orifice, ageing-resistant microcapsule is ejected into poly-the third of molten condition Alkene fiber surface, is then discharged age resister by the temperature and pressure of hot-rolling mill.
Preferably, the age resister of the application is selected from the 2-acrylate-based benzophenone UV-absorber of hydroxyl-4-, Asia Phosphate ester, monothioester, hindered phenol heat stabilizer, hindered amine as light stabilizer, nano Ce O2In at least one；The preparation of microcapsule Method includes, with age resister as core, melting range be the paraffin of 52-58 DEG C be wall material, by age resister and melted stone Wax is distributed in disperse medium together, is sufficiently stirred for, and makes age resister and paraffin be uniformly dispersed, and then declines at stirring Temperature, paraffin hardens, and is wrapped up wherein by age resister, forms described microcapsule.
It should be noted that the purpose of disperse medium is to make age resister and paraffin dispersed in the application, with convenient Paraffin wraps up age resister uniformly, it will be understood that the disperse medium of the application is that a class i.e. will not dissolve paraffin, also will not be molten Solve ageing-resistant liquid medium.Also, it should be noted fully dispersed uniform time, paraffin remain holding liquid State, age resister is then being suspended in paraffin of solid granular or powder, and therefore, disperse medium now should be It is in the temperature constant state of 52-58 DEG C, so that paraffin is kept molten by, then when cooling, uniform microcapsule could be obtained.
Preferably, during using meltblown to prepare polypropylene melt-blown nonwoven fabric layer, add in hot melt spinning and receive Rice calcium carbonate, then uses the acid solution of dilution to rinse melt-blown material, washes away the nano-calcium carbonate of fiber surface, fine at polypropylene Dimension table face forms irregular hole.
Preferably, nano-calcium carbonate: the mass ratio of polypropylene chip is 3～10:90～97.
It should be noted that nano-calcium carbonate be added to formed hole, hole is the most, polypropylene melt blown non-woven The heat insulation effect of layer of cloth is the best, but, hole the most then can affect the formation of spinning, is unfavorable on the contrary improving heat insulation effect；Cause This, the preferred nano-calcium carbonate of the application: the mass ratio of polypropylene chip is 3～10:90～97.
Preferably, the acid solution of dilution is the glacial acetic acid of 10%-15%.
The application has the beneficial effects that:
The heat-preserving complex material for construction wall of the application, adds between the antiseized nonwoven layer of two layers of polypropylene Polypropylene melt-blown nonwoven fabric layer and polyethylene flash-spun nonwovens layer, not only have good heat insulation effect, and waterproof, anti- Damp, ventilative, there is good ageing resistace；The guarantor that a kind of new heat-insulating property is superior is provided for construction wall insulation material Temperature composite.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat-preserving complex material in the embodiment of the present application.
Detailed description of the invention
Polypropylene melt-blown nonwoven fabric due to its production technology, have that structure is fluffy, fiber compared with thin, hole is little, The characteristics such as air content is high in voidage height, fibre web.In polypropylene melt-blown nonwoven fabric, to be divided into minute cells quiet for air Only it is stored therein in, it is to avoid cross-ventilation produces thermal loss, has a preferable warming effect.Knit although polypropylene melt-blown is non- Making the good warmth retention effect of cloth, but because its structure is fluffy, fiber is shorter, stretch-proof strength is the least, its fibre net structure in processing or It is more easily damaged during person's subsequent use, thus affects the warming effect of polypropylene melt-blown nonwoven fabric, therefore, not yet have Its research used in construction wall and report.Non-woven material prepared by flash method, has that thickness is thin, light weight, high intensity The features such as anti tear, opaque, waterproof and breathable, suffer from purposes widely at medical treatment, health, civilian and industrial field；But, There is no its research used in construction wall and report yet.
The handling characteristics of the application building complex wall heat insulation material, creative proposition, gathers good for heat-insulating property The polyethylene flash-spun nonwovens layer of propylene melt blown nonwoven layer and waterproof and breathable is located in the anti-bonded non-woven of two layers of polypropylene Between layer of cloth, thus prepare the heat-preserving complex material being applicable to construction wall.The heat-preserving complex material of the application, utilizes poly-third The tension stress of the antiseized nonwoven layer of alkene, maintains the stability that composite is overall, meanwhile, at the antiseized nonwoven layer of polypropylene Middle interpolation age resister, strengthens its aging resistance function；Utilize the fluff structure of polypropylene melt-blown nonwoven fabric layer, improve composite wood The integral heat insulation performance of material；Utilize the construction features of polyethylene flash-spun nonwovens layer, make composite possess waterproof, moistureproof, Ventilative performance.Wherein, moisture resistance is mainly reflected in, and time raining in the external world, moisture is very big within doors, and unnecessary steam can pass through The heat-preserving complex material of the application is dispersed into the external world, the humidity in balance cylinder.The insulation for construction wall of the application is combined Material, can recover rapidly form after removing external force, protect its structure and be not destroyed, for the thermal property of structure material Provide safeguard, expanded the application of composite nonwoven material.
Under the inventive concept of the heat-preserving complex material of the application, the application further preparation to heat-preserving complex material Method is studied.In the preparation method of the application, prepare the anti-bonded non-woven of two layers of polypropylene especially with spun-bond process The when of layer of cloth, owing to spunbond product vertically and horizontally there are differences, in order to improve the stability of heat-preserving complex material for building, this Shen The mode of employing cross lapping that please be creative promotes the vertically and horizontally strength of spunbonded materials, makes vertically and horizontally strength ratio reach 1:1, with Eliminate the vertically and horizontally difference of spunbond product.
It addition, for the thermal property preferably improving heat-preserving complex material for building, the application is further poly-third The fiber surface of alkene meltblown nonwoven layer manufactures void structure, increases the air content in fibre web, improves warming effect.Need Illustrate, as long as void structure can be formed on polypropylene fibre surface, make porous fibre, concrete technology side Depending on method can be according to different working conditions.In a kind of preferred version of the application, creative knit polypropylene melt-blown is non- Add nano-calcium carbonate during making cloth preparation, make nano-calcium carbonate embed the fiber surface of polypropylene melt-blown nonwoven fabric, so After melt-blown material prepared by the mode impact of diluted acid high-pressure injection, wash away the calcium carbonate of fiber sheath, at polypropylene melt-blown Non-weaving cloth fiber surface forms irregular hole, and diluted acid liquid unnecessary in meltblown layer will be inhaled by net bottom air intake device Walk.
In the preparation method of the application, spun-bond process, meltblown, flash method, compound consolidation etc. can be with reference to conventional techniques Means.In a kind of implementation of the application, polypropylene melt-blown nonwoven fabric layer and polyethylene flash-spun nonwovens layer and two The compound consolidation of layer polypropylene spunbonded nonwoven layer of cloth, completes, i.e. under polypropylene melt-blown nonwoven fabric layer hot rolling effect First a layer polypropylene spunbonded nonwoven layer of cloth is reinforced compound, at polypropylene melt with polyethylene flash-spun nonwovens layer by hot rolling After spray lapping, before the cooling molding of polypropylene melt-blown nonwoven fabric layer, the second PP spunbonded nonwovens layer that will be combined It is laid under it with polyethylene flash-spun nonwovens layer cloth, the first PP spunbonded nonwovens layer is spread thereon, through hot rolling Effect is compound to be consolidated, and forms the heat-preserving complex material of the application.
Below by specific embodiments and the drawings, the application is described in further detail.Following example are only to the application It is further described, should not be construed as the restriction to the application.
Embodiment one
The heat-preserving complex material for construction wall of this example is as it is shown in figure 1, be combined the first of consolidation by sequentially stacking and gather The antiseized nonwoven layer of propylene 1, polypropylene melt-blown nonwoven fabric layer 2, polyethylene flash-spun nonwovens layer 3 and the second polypropylene are anti- Bonded non-woven layer of cloth 4 forms.Its preparation method is as follows:
Preparing two layers of polypropylene spunbonded nonwoven layer of cloth the most respectively, the preparation of spun-bonded non-woven uses the side of cross lapping Formula, producing grammes per square metre according to polypropylene spun bonding technique is 40g/m2Spun-bonded non-woven.Further, spray from spinneret orifice at fiber Time, age resister microcapsule is ejected into the fiber surface of molten condition, then by the temperature and pressure of hot-rolling mill by anti-ageing Agent discharges.The i.e. first antiseized nonwoven layer of polypropylene 1 and the antiseized nonwoven layer of the second polypropylene 4.
Flash method is used to prepare 40g/m2Polyethylene flash-spun nonwovens layer 3.
By the second PP spunbonded nonwovens layer 4 and the polyethylene flash-spun nonwovens layer 3 prepared, at roller temperature 160 DEG C-170 DEG C, light roll temperature 150 DEG C-160 DEG C, mill rolling force 60MPa-80MPa, hot melt is than under conditions of for 18%-19% Hot rolling is reinforced compound.
Meltblown is used to prepare polypropylene melt-blown nonwoven fabric layer, when melt-blowing nonwoven spinning, by nano-calcium carbonate Add, then according to the technique of melt blown non-woven carries out production and processing according to the mass ratio of 8:92 with polypropylene chip.? In preparation process, weak acid impacting by the way of high-pressure injection melt-blown material, liquid unnecessary in meltblown layer is inhaled by net bottom Wind apparatus siphons away.When polypropylene melt spray fibre web is uncolled, by the second PP spunbonded nonwovens layer 4 being combined and poly-second Alkene flash-spun nonwovens layer cloth 3 is laid under it, and polyethylene flash-spun nonwovens layer 3 cloth cover upwards connects with polypropylene melt spray fibre web Touch；First PP spunbonded nonwovens layer 1 is spread thereon, then, carries out method hot rolling and be consolidated, i.e. form this example Heat-preserving complex material, its structure is that PP spunbonded nonwovens layer+polypropylene melt-blown nonwoven fabric layer+polyethylene flash distillation is non- The four-layer structure of woven layer+PP spunbonded nonwovens layer.
During using meltblown to prepare polypropylene melt-blown nonwoven fabric layer, the technique produced by regulation meltblown is joined Number, the grammes per square metre making the polypropylene melt-blown nonwoven fabric layer of preparation is 40g/m2.Further, the weak acid that this example is used is the denseest Degree is the glacial acetic acid of 10%.In this example, glacial acetic acid reacts with nano-calcium carbonate, generates carbon dioxide and the sodium acetate that can hold, because of This forms various irregular hole at fiber surface.
Use thermal resistance and the mensuration of wet group under standard GB/T/T 11048-2008 textile physiological comfort limit Provided in method heat-preserving complex material prepared by this example carry out insulation rate test.Concrete, by adding from mensuration sample The thermal resistance value deducting test apparatus superficial air layer in the thermal resistance value (or dampness value) of top air layer obtains the thermal resistance expected of being measured and monitored the growth of standing timber Value (or dampness value), twice test is carried out the most at identical conditions.Test result shows, insulation for building prepared by this example is multiple Condensation material has preferable moisture resistance, good stability, and insulation rate reaches 60%.
It addition, use described in standard GB/T/T 16422.3-1997 plastics laboratory light source exposure test method Method tests the ageing resistace of heat-preserving complex material prepared by this example.Concrete, see GB/T 16422.3-1997 the 3rd Point: fluorescent ultraviolet lamp standard, use UVA340 fluorescent tube, irradiance 0.77W/m2/ nm, irradiation 8h at black standard temperature 60 DEG C, Then at black standard temperature 50 DEG C, expose 4h without irradiation condensation, so circulate, test 210h altogether.Test result shows, declines Strength retention after subtracting reaches more than 90%, it is seen then that heat-preserving complex material for building prepared by this example has good anti-ageing Change performance.
Embodiment two
The heat-preserving complex material for construction wall of this example, its structure and preparation method are all identical with embodiment one, respectively The grammes per square metre of layer is also identical with embodiment one；Except that, in the mistake using meltblown to prepare polypropylene melt-blown nonwoven fabric layer The adding proportion of Cheng Zhong, nano-calcium carbonate and polypropylene chip is, according to nano-calcium carbonate: polypropylene chip is the matter of 10:90 Amount ratio adds nano-calcium carbonate.Remaining technique is all identical with embodiment one.
Same, use the method identical with embodiment one that the heat-preserving complex material of this example is tested, result shows, Heat-preserving complex material for building prepared by this example, warming rate reaches 60%, and the strength retention after 210h irradiation exposure processes reaches To more than 90%, it is seen then that heat-preserving complex material for building prepared by this example has good heat-insulating property and ageing resistace.
On the basis of above example, the grammes per square metre of the application layer each to heat-preserving complex material further is studied, And the consumption of nano-calcium carbonate is tested.Result shows, the first antiseized nonwoven layer of polypropylene and the second polypropylene Antiseized nonwoven layer and grammes per square metre are 40～100g/m2, the grammes per square metre of polypropylene melt-blown nonwoven fabric layer be 40～50g/m2, poly-second The grammes per square metre of alkene flash-spun nonwovens layer is 40～50g/m2, the heat-preserving complex material being applicable to construction wall can be prepared. And the consumption of nano-calcium carbonate is with nano-calcium carbonate: the mass ratio of polypropylene chip is 3～10:90～97 to be optimal.In this Shen In the range of restriction please, prepared heat-preserving complex material, its warming rate is all more than 55%, and industry standard is only 45% left side Right；The clo value of the heat-preserving complex material of the application is both greater than 0.7, and industry standard is only about 0.65, therefore, it can reaching In the case of identical heat insulation effect, effectively reduce the use thickness of warming plate, reduce cost.It addition, the insulation of the application is multiple Condensation material 210h irradiation exposure process after strength retention all more than 90%, it is seen then that its ageing resistace is good.
Above content is to combine the further description that the application is made by specific embodiment, it is impossible to assert this Shen Being embodied as please is confined to these explanations.For the application person of an ordinary skill in the technical field, do not taking off On the premise of the application conceives, it is also possible to make some simple deduction or replace, all should be considered as belonging to the protection of the application Scope.

Claims (10)

1. the heat-preserving complex material for construction wall, it is characterised in that: include that sequentially stacking is combined the first of consolidation and gathers The antiseized nonwoven layer of propylene, polypropylene melt-blown nonwoven fabric layer, polyethylene flash-spun nonwovens layer and the second polypropylene are antiseized Nonwoven layer；The described first antiseized nonwoven layer of polypropylene and the antiseized nonwoven layer of the second polypropylene are added with anti-ageing Agent, the fiber surface of described polypropylene melt-blown nonwoven fabric layer has void structure.
Heat-preserving complex material the most according to claim 1, it is characterised in that: the described first antiseized nonwoven layer of polypropylene It is 40～100g/m with the second antiseized nonwoven layer of polypropylene and grammes per square metre2。
Heat-preserving complex material the most according to claim 1, it is characterised in that: described polypropylene melt-blown nonwoven fabric layer gram It is heavily 40～50g/m2, the grammes per square metre of described polyethylene flash-spun nonwovens layer is 40～50g/m2。
4. according to the preparation method of the heat-preserving complex material described in any one of claim 1-3, it is characterised in that: include, with poly- Propylene is raw material, uses spun-bond process to prepare the described first antiseized nonwoven layer of polypropylene respectively and described second polypropylene is antiseized Nonwoven layer, uses meltblown to prepare described polypropylene melt-blown nonwoven fabric layer, with polyethylene as raw material, uses flash distillation legal system Standby described polyethylene flash-spun nonwovens layer；Then, lapping in order, compound consolidation forms described heat-preserving complex material.
Preparation method the most according to claim 4, it is characterised in that: use spun-bond process to prepare described first polypropylene antiseized During nonwoven layer and the described second antiseized nonwoven layer of polypropylene, promote spunbonded materials by the mode of cross lapping Vertically and horizontally strength, make vertically and horizontally strength ratio reach 1:1.
Preparation method the most according to claim 4, it is characterised in that: use spun-bond process to prepare described first polypropylene antiseized During nonwoven layer and the described second antiseized nonwoven layer of polypropylene, when polypropylene fibre sprays from spinneret orifice, Ageing-resistant microcapsule is ejected into the polypropylene fibre surface of molten condition, then will by the temperature and pressure of hot-rolling mill Age resister discharges.
Preparation method the most according to claim 6, it is characterised in that: described age resister is selected from 2-hydroxyl-4-acrylic acid Ester group benzophenone UV-absorber, phosphite ester, monothioester, hindered phenol heat stabilizer, hindered amine as light stabilizer, nanometer CeO2In at least one；The preparation method of described microcapsule includes, with described age resister as core, melting range is 52- The paraffin of 58 DEG C is wall material, is distributed in disperse medium by age resister, is sufficiently stirred for, makes aging resistance together with melted paraffin Agent and paraffin are uniformly dispersed, and then at stirring borehole cooling, paraffin hardens, and is wrapped up wherein by age resister, is formed described micro- Capsule.
Preparation method the most according to claim 4, it is characterised in that: described polypropylene melt-blown is non-to be knitted to use meltblown to prepare During making layer of cloth, polypropylene chip adds nano-calcium carbonate, then uses the acid solution of dilution to rinse melt-blown material, Wash away the nano-calcium carbonate of fiber surface, form irregular hole on polypropylene fibre surface.
Preparation method the most according to claim 8, it is characterised in that: described nano-calcium carbonate: the quality of polypropylene chip Ratio is 3～10:90～97.
Preparation method the most according to claim 8, it is characterised in that: the acid solution of described dilution is the ice of 10%-15% Acetic acid.
CN201610369159.XA 2016-03-28 2016-05-27 Heat-insulating composite for building walls and preparation method thereof Pending CN106042535A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115852592A (en) * 2022-12-06 2023-03-28 厦门当盛新材料有限公司 Nonwoven composite sheet and method of making same

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