CN106891593A - A kind of TPO earthwork composite material and preparation method thereof - Google Patents

A kind of TPO earthwork composite material and preparation method thereof Download PDF

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Publication number
CN106891593A
CN106891593A CN201710039320.1A CN201710039320A CN106891593A CN 106891593 A CN106891593 A CN 106891593A CN 201710039320 A CN201710039320 A CN 201710039320A CN 106891593 A CN106891593 A CN 106891593A
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layer
tpo
composite material
thermoplastic polyolefin
geotextile
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CN106891593B (en
Inventor
韩忠强
段文锋
楚跃先
宗敦峰
周建平
田凤兰
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China Electric Power Construction Ltd By Share Ltd
Beijing Oriental Yuhong Waterproof Technology Co Ltd
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China Electric Power Construction Ltd By Share Ltd
Beijing Oriental Yuhong Waterproof Technology Co Ltd
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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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • 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
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • 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
    • B32B2262/0276—Polyester 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • 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
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • 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
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)
  • Revetment (AREA)

Abstract

The present invention provides a kind of TPO earthwork composite material and preparation method thereof, belongs to hydroelectric project technical field, and it can solve the problems, such as that existing impervious material cannot for a long time be used for hydroelectric project.TPO earthwork composite material of the invention includes compound thermoplastic polyolefin layer and geotextile layer, the composite has the high-flexibility of rubber concurrently, extensibility and durability and the excellent melt-processed characteristic of thermoplastic, any plasticizer is free of in the composite, its resistance to UV aging can be excellent, punctured resistance is high, resistance to bursting strength is high, resistance to hydrostatic pressure is high, thermal weld excellent performance, the impact of more than 200m hydraulic pressure can be born, it can directly expose and be applied to dam, reservoir, embankment, cofferdam, water channel, tunnel, nuclear power station etc. is newly-built and repairs water power hydraulic engineering antiseepage, and application life and building same life-span.

Description

A kind of TPO earthwork composite material and preparation method thereof
Technical field
The invention belongs to hydroelectric project technical field, and in particular to a kind of TPO earthwork composite material and its system Preparation Method.
Background technology
In hydroelectric project field, the dam body seepage such as earth and rockfill dam, rock-fill dams, arch dam it is good and bad to hydroelectric project Stability Analysis of Structures and Longtime running benefit plays an important roll.Currently, China's hydroelectric project dam body seepage is mainly prevented using thickness concrete surface flaggy high Ooze based on technology, also there is concrete slab/geomembrane composite anti-penetrating structure, but existing composite anti-penetrating structure is settled in basic unit and become Concrete slab is easy to crack in shape engineering, produce seepage.
According to China energy industry standard NB/T35027-2014《Hydroelectric project geomembrane anti-seepage technical specification》, for anti- In hydroelectric project antiseepage of the infiltration head less than 70m, can be using polyvinyl chloride (PVC) geomembrane, high density polyethylene (HDPE) (HDPE) soil Work film, LLDPE (LLDPE) geomembrane, generally also need to separately set coating.
In the application of a large amount of engineerings, inventor has found that above-mentioned impervious material has problems, it is impossible to which satisfaction applies need Ask.For example, PVC geo-membrane materials such as are faced with the migration of plasticizer, are hardened at the influence product service life during long-term use Problem, and PVC body constructions contain chlorine (Cl) and the addition toxic element such as processing aid content lead, and the feature of environmental protection is poor； HDPE modulus is high, and hardness is big, and pliability is poor, workability deviation, while environmental stress is also easy to produce during prolonged application, because This there is also problem easy to crack；LLDPE geomembranes are improved compared to HDPE pliabilities, but the film planarization it is poor, construction Performance is low, and there are problems that ESC, and above-mentioned material and can not directly expose application.
The content of the invention
The present invention cannot for a long time and directly expose the problem being applied in hydroelectric project for existing impervious material, there is provided A kind of new dam body seepage TPO earthwork composite material.TPO earthwork composite material of the invention can Directly exposure is applied to that dam, reservoir, embankment, cofferdam, water channel, tunnel, nuclear power station etc. are newly-built and maintenance water power hydraulic engineering is prevented Ooze.
Solving the technical scheme that is used of present invention problem is：
A kind of TPO earthwork composite material, including compound thermoplastic polyolefin layer and geotextile layer；Institute The thickness of thermoplastic polyolefin layer is stated for 0.1-10mm, the width of the thermoplastic polyolefin layer is 0.8-5m, and the thermoplastic Property polyolefin layer width more than the geotextile layer width, wherein the non-composite earth in the edge of the thermoplastic polyolefin layer It is overlap edge at the position of work tissue layer, the width of the overlap edge is 5-15cm.
Wherein, overlap adjacent materials when the effect of overlap edge is welding procedure, to ensure TPO in dam body Surface layer forms continuous seal.
Preferably, the geotextile layer can be fibre geotextiles chopped fiber needle-punched or/and long；It is further preferred that described Geotextile layer be polypropylene geotextile fabric, polyester geotextile, polyamide geotextile in any one or a few.
Wherein, the effect of geotextile layer is that to protect thermoplastic polyolefin layer to keep out irregular convex in the basic unit of applied environment Thing, Rolling Stone are played and the destruction of the extraneous factor generation such as lack of standardization of constructing, while can also improve the chi of thermoplastic polyolefin layer Very little stability, mechanical strength, gradient stability etc., additionally it is possible to as draining and exhaust passage.
Preferably, the composite includes two-layer geotextile layer, and the thermoplastic polyolefin layer is located at described two Between layer geotextile layer, every layer of geotextile layer grammes per square metre is 100~1000g/m2.It is further preferred that every layer of soil Work tissue layer grammes per square metre is 100~800g/m2。
Preferably, the raw material of the thermoplastic polyolefin layer includes thermoplastic polyolefin resin, the thermoplastic polyolefin The bending modulus of hydrocarbon resin is：2-300MPa, shore hardness is：Shao 10-50 D.
Preferably, the infrared absorption spectroscopy of the composite is in wave number 2800-3000cm-1And 1300-1500cm-1 There is vibration absorption peak at place, and the former has 3-4 absworption peak, and the latter has 2-3 absworption peak, belongs to resin characteristics structure peak.
Preferably, the polymer of the thermoplastic polyolefin resin includes rigid chain segment (plastics phase) and soft segment (rubber phase), the soft segment accounts for the weight percentage of polymer more than or equal to 35%, the rigid chain segment be with The polypropylene or/and polyethylene structure unit of ordered structure, the soft segment be ethylene-propylene and/or ethylene-propylene-α- Olefin unit.
Wherein, soft segment is evenly dispersed in continuous rigid chain segment, to realize material modulus and flexible flat Weighing apparatus, while the excellent high and low temperature resistance (- 50 DEG C still keep pliability) of imparting composite and processing characteristics and welding are applied Work performance so that material can preferably adapt to the deformation of applied environment and realize resisting raised bursting characteristic, moreover it is possible to adapt to Requirement of the engineering to material at low temperature performance under Different climate environment.
Preferably, the thermoplastic polyolefin resin includes thermoplastic polypropylene based elastomeric, TPO bullet The mixing of one or more in gonosome, polypropylene, polypropylene mixture alloy, polyethylene, EP rubbers.
Preferably, the raw material of the thermoplastic polyolefin layer also includes processing aid, light stabilizer, filler, pigment；Its In, the parts by weight of the raw material of the thermoplastic polyolefin layer are：65~100 parts of thermoplastic polyolefin resin, processing aid 0.1 ~5 parts, 0.1~5 part of light stabilizer, 0.1~35 part of filler, 0.1~5 part of pigment.
Preferably, the light stabilizer includes carbon black, titanium dioxide, o-hydroxy benzophenone copper class, benzotriazole, bigcatkin willow Any one or a few mixing in esters of gallic acid, hindered amine light stabilizer；The processing aid includes antioxidant, lubricant In any one or two kinds；Described filler include calcium carbonate, talcum powder, mica, magnesium hydroxide in any one or a few Mixing；Described filler particle diameter is 800~3000 mesh.
Wherein, packing material size can improve the anti-permeability performance of composite in the range of 800~3000 mesh.Processing aid Effect is processing characteristics, the durability of composite products and the service life for further improving thermoplastic polyolefin resin.
The present invention also provides a kind of preparation method of above-mentioned TPO earthwork composite material, including following step Suddenly：
The raw material of thermoplastic polyolefin layer is placed in be extruded after melting in 200-240 DEG C of screw extruder and obtains melt Layer；
Geotextile is had hydraulic pressure refrigerating function and arranged in 0-70 angles with the melt layer of extrusion by improvement It is combined in three rolling ray machines of row, forms TPO earthwork composite material, the technique is solved in conventional processes Roll banding problem.
Wherein, the compound of above-mentioned steps is included compound using high temperature hot pressing or is bonded using binding agent compound.Also including will After the melt layer cooling of extrusion, high temperature hot melt adhesive layer is being coated to melt layer surface, it is then compound with geotextile hot pressing.
TPO earthwork composite material of the invention includes compound thermoplastic polyolefin layer and geotextile Layer, the excellent melt-processed of high-flexibility, extensibility and durability and thermoplastic that the composite has rubber concurrently is special Property, any plasticizer is free of in the composite, its resistance to UV aging excellent, punctured resistance of energy is high, resistance to bursting strength High, resistance to hydrostatic pressure is high, thermal weld excellent performance, can bear the impact of more than 200m hydraulic pressure, therefore, it can directly expose and be applied to Dam, reservoir, embankment, cofferdam, water channel, tunnel, nuclear power station etc. it is newly-built and maintenance water power hydraulic engineering antiseepage, and application life with Build the same life-span.
Additionally, being free of any toxic contaminants element in the composite, its processing waste material is recyclable, in life cycle management Environmental protection, and preparation process is simple, the advantages of can be continuously produced；It is its easy construction when using, with low cost.
Brief description of the drawings
Fig. 1 is the structural representation of the TPO earthwork composite material of embodiments of the invention 1；
Fig. 2 is the TPO earthwork composite material infrared absorpting light spectra of embodiments of the invention 1；
Fig. 3 is the structural representation of the TPO earthwork composite material of embodiments of the invention 2；
Fig. 4 is the TPO earthwork composite material infrared absorpting light spectra of embodiments of the invention 3；
Wherein, reference is：1st, thermoplastic polyolefin layer；2nd, geotextile layer；3rd, overlap edge.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party Formula is described in further detail to the present invention.
Embodiment 1：
The present embodiment provides a kind of TPO earthwork composite material, as shown in figure 1, including one layer of compound thermoplastic Property polyolefin layer and layer of geotextile layer.
Wherein, the thickness 2.5mm of thermoplastic polyolefin layer, breadth 1m, geotextile layer are grammes per square metre 100g/m2Nonwoven gather 5cm is reserved as overlap edge from the edge of thermoplastic polyolefin layer in propylene geotextiles, geotextile layer edge.
The infrared absorpting light spectra of the TPO earthwork composite material of the present embodiment is shown in Fig. 2, the composite Preparation method is as follows：
Thermoplastic polyolefin resin, pearl filler, antioxidant and light stabilizer are delivered to screw extruder feeding dress In putting, 200-240 DEG C of temperature carries out melting extrusion and obtains extrudate i.e. high-temperature fusant under conditions of 200 turns/min of screw speed；
Then extrudate is delivered to between hydraulic pressure cooling, the stack in the arrangement of oblique L-type；
By grammes per square metre 100g/m2Nonwoven polypropylene geotextiles through unreeling, the operation such as tuningout is sent between above-mentioned stack simultaneously Common with above-mentioned high-temperature fusant compound through hot pressing, the technique such as clipped after cooling, thickness measuring, winding obtains TPO soil Work composite.
Wherein, the weight portion of thermoplastic polyolefin resin, pearl filler, antioxidant and light stabilizer is：65 parts, 0.1 Part, 0.1 part, 0.1 part, described filler particle diameter be 800 mesh.The bending modulus of thermoplastic polyolefin resin is less than 300MPa, shore Hardness is less than 50 Shao D.
Embodiment 2：
The present embodiment provides a kind of TPO earthwork composite material, as shown in figure 3, be three-decker, by upper Under be followed successively by：Geotextile layer, thermoplastic polyolefin layer, geotextile layer.
Wherein, the geotextile layer above thermoplastic polyolefin layer is 500g/m2Nonwoven acupuncture polyester geotex-tile, thermoplastic Property polyolefin layer below geotextile layer be grammes per square metre 800g/m2Have spinning pp geo textiles.Thermoplastic polyolefin layer's thickness 0.3mm, breadth 2m；Geotextile layer two ends are from each 10cm of thermoplastic polyolefin layer's edges at two ends.
It should be noted that material, structure, the grammes per square metre of the two-layer geotextile layer of thermoplastic polyolefin layer top and lower section Etc. identical can also differ, concrete condition can be selected according to practical application.
The preparation method of the composite is as follows：
By polypropylene mixture alloy (Li Ande Basels of manufacturer, resin model Hifax C721), pearl filler, Antioxidant and light stabilizer are delivered in screw extruder drawing-in device, are melted under conditions of 350 turns/min of screw speed Extrusion obtains extrudate i.e. high-temperature fusant；
Then between extrudate being delivered into stack；
By grammes per square metre 500g/m2Nonwoven acupuncture polyester geotex-tile through unreeling, between the operation such as tuningout is sent to above-mentioned stack And it is common with above-mentioned high-temperature fusant compound through hot pressing, after cooling, then in thermoplastic polyolefin layer's two-layer coating PUR, and with Grammes per square metre 800g/m2Have spinning pp geo textiles bonding compound, obtain thermoplastic poly through techniques such as cooling, cutting, thickness measuring, windings Alkene earthwork composite material.
Wherein, the weight portion of thermoplastic polyolefin resin, pearl filler, antioxidant and light stabilizer is：100 parts, 35 Part, 5 parts, 5 parts, described filler particle diameter be 3000 mesh.
Embodiment 3：
The present embodiment provides a kind of TPO earthwork composite material, and it has the thermoplastic polyolefin with embodiment 1 The similar structure of hydrocarbon earthwork composite material, it is with the difference of embodiment 1, thermoplastic polyolefin layer thickness 3mm, breadth 4m, Geotextile is grammes per square metre 700g/m2Nonwoven acupuncture polyester geotex-tile, geotextile layer edge two ends are from thermoplastic polyolefin layer Each 10cm of edges at two ends is used as overlap edge.
The weight portion of thermoplastic polyolefin resin, pearl filler, antioxidant and light stabilizer is：80 parts, 15 parts, 3 parts, 3 parts, wherein, described filler particle diameter is 2000 mesh.The grammes per square metre 800g/m of nonwoven acupuncture polyester geotex-tile2, 400 turns of screw speed/ min。
The infrared absorpting light spectra of the TPO earthwork composite material of the present embodiment is shown in Fig. 4.
Embodiment 4：
The present embodiment provides a kind of TPO earthwork composite material, and it has the thermoplastic polyolefin with embodiment 1 The similar structure of hydrocarbon earthwork composite material, it is with the difference of embodiment 1, thermoplastic polyolefin layer thickness 10mm, breadth 5m, Geotextile is grammes per square metre 500g/m2Nonwoven acupuncture polyester geotex-tile, geotextile layer two ends are from thermoplastic polyolefin layer two ends Each 15cm in edge is used as overlap edge.
The grammes per square metre 500g/m of nonwoven acupuncture polyester geotex-tile2, 200 turns/min of screw speed.
The TPO earthwork composite material of embodiment 1-4 is carried out into performance test, test result is shown in Table 1.
Test condition and as follows：
Hardness determines identation hardness and tests according to GB/T2411-2008 plastics and hard rubber using hardometer, 5s readings；
Fracture strength and elongation percentage are according to GB/T328.9-2007《The part of building waterproof coil test method the 5th：Macromolecule Waterproof roll tensile property》In method A tested；Rate of extension 500mm/min, testing bar number 5, averages；
Tearing strength is according to GB/T1376-2010《The measure of the trapezoidal tearing brute force of geosynthetics》, rate of extension 50mm/min；
The adjacent overlap edge of product using hot air welding into closely knit entirety, 500 DEG C of welding temperature, speed 2.5m/min, with Maximum peeling force is denoted as the seam peel strength of material, and method of testing is using GB/T328.21 building waterproof coils test method the 21 part polymer membranes seam peel strength tests, rate of extension 100mm/min；
Vertical permeability coefficient is according to GB19979.2-2006《Geosynthetics barrier performance part 2：Infiltration coefficient Determine》；
The deformation ratio that rises brokenly uses the pressure vessel testing of adjustable pressure, aperture 75mm, pressure 2.5MPa, 30min, for table Levy material resistance head height；
Hydrostatic pressure resistant is according to GB/T19979.1-2005 geosynthetics barrier performance part 1s：Resistance to hydrostatic pressure is determined, For characterizing material resistance head height；
Bursting strength is according to GB/T14800-2010 geotextiles bursting strength measurement of test method, speed 50mm/min；
Low-temperature bending performance is according to the part polymer membranes of GB/T328.15 building waterproof coils test method the 15th Low-temperature bending is tested, test bar -50 DEG C；
Heat aging performance uses heat aging test chamber, 115 DEG C ± 2 DEG C, aging 224 days of temperature；
Artificial climate accelerated ageing test is tested according to ASTM G151 methods.
Table 1
Comparative example 1 is commercially available high density polyethylene (HDPE) (HDPE) geomembrane, and comparative example 2 is commercially available linear low density polyethylene Alkene (LLDPE) geomembrane, comparative example 3 is commercially available polyvinyl chloride (PVC) geomembrane.By comparative example 1, comparative example 2 and comparative example 3 Geomembrane tested using above-mentioned experimental technique, test result is shown in Table 2.
Table 2
From data in Tables 1 and 2, embodiment 1-4 has excellent pliability, shows relatively low shore hardness (below 40 Shao D) and elongation percentage is done to obtain, up to more than 650%, and hardness is bigger, elongation percentage are relatively low in comparative example 1-3, relatively soft Toughness is relatively low.Artificial weathering aging and heat aging performance are the good and bad key indexs of article durable performance, and embodiment 1-4 is either Heat ageing (115 DEG C/224 days) or artificial weathering aging (10080Kj/m2Irradiation) property retention rate is more than 90% And -50 DEG C of cryogenic properties are still excellent, excellent durability is presented, and comparative example 1-3 correlated performances are relatively low, durability extreme difference.
The present embodiment also has the low-temperature resistance bending performance more excellent than comparative example, is such as split in -50 DEG C of environment bending nothings Line, and comparative example ftractures or has crackle, it is seen that the present embodiment has broader temperature applications environmental characteristics；Meanwhile, Without infiltration under 2.5MPa (equivalent to 250m hydraulic pressure) pressure, and the multidirectional deformation rate that rises brokenly is up to 400%, fully shows that embodiment has There are more excellent water pressure resistance performance, Bursting Properties and adapt to basic unit's deformation characteristic, be much better than current material.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary implementation for using Mode, but the invention is not limited in this.For those skilled in the art, essence of the invention is not being departed from In the case of god and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.

Claims (10)

1. a kind of TPO earthwork composite material, it is characterised in that including the thermoplastic polyolefin layer and geotechnique that are combined Tissue layer；
The thickness of the thermoplastic polyolefin layer is 0.1-10mm, and the width of the thermoplastic polyolefin layer is 0.8-5m, and institute The width of the width more than the geotextile layer of thermoplastic polyolefin layer is stated, wherein the edge of the thermoplastic polyolefin layer is not It is overlap edge at the position of composite geotextile layer, the width of the overlap edge is 5-15cm.
2. TPO earthwork composite material according to claim 1, it is characterised in that the geotextile layer bag Include any one or a few in polypropylene geotextile fabric, polyester geotextile, polyamide geotextile.
3. TPO earthwork composite material according to claim 1, it is characterised in that the composite includes Two-layer geotextile layer, the thermoplastic polyolefin layer is located between the two-layer geotextile layer, every layer of geotextile Layer grammes per square metre is 100~800g/m2。
4. TPO earthwork composite material according to claim 1, it is characterised in that the TPO The raw material of layer includes thermoplastic polyolefin resin, and the bending modulus of the thermoplastic polyolefin resin is：2-300MPa, shore is hard Spend and be：Shao 10-50 D.
5. TPO earthwork composite material according to claim 1, it is characterised in that the composite it is red Outer absorption spectrum is in wave number 2800-3000cm-1、1300-1500cm-1There is eigen vibration absworption peak at place.
6. TPO earthwork composite material according to claim 1, it is characterised in that the TPO The polymer of resin includes rigid chain segment and soft segment, the soft segment account for polymer weight percentage be more than or Equal to 35%, the rigid chain segment is polypropylene or/and polyethylene structure unit with ordered structure, and the soft segment is Ethylene-propylene and/or ethylene-propylene-alpha-olefin construction unit.
7. TPO earthwork composite material according to claim 1, it is characterised in that the TPO Resin include thermoplastic polypropylene based elastomeric, thermoplastic polyolefin elastomer, polypropylene, polypropylene mixture alloy, polyethylene, The mixing of one or more in EP rubbers.
8. TPO earthwork composite material according to claim 1, it is characterised in that the TPO The raw material of layer also includes processing aid, light stabilizer, filler, pigment；Wherein, the weight of the raw material of the thermoplastic polyolefin layer Number is：65~100 parts of thermoplastic polyolefin resin, 0.1~5 part of processing aid, 0.1~5 part of light stabilizer, filler 0.1~ 35 parts.
9. TPO earthwork composite material according to claim 8, it is characterised in that the light stabilizer includes It is any one in carbon black, titanium dioxide, o-hydroxy benzophenone copper class, benzotriazole, salicylic acid esters, hindered amine light stabilizer Plant or several mixing；The processing aid includes any one or two kinds in antioxidant, lubricant；Described filler includes carbon Any one or a few mixing in sour calcium, talcum powder, mica, magnesium hydroxide；Described filler particle diameter is 800~3000 mesh.
10. a kind of preparation method of the TPO earthwork composite material described in any one of claim 1-9, its feature exists In comprising the following steps：
The raw material of thermoplastic polyolefin layer is placed in be extruded after melting in 200-240 DEG C of screw extruder and obtains melt layer；
By the melt layer of geotextile and extrusion in the three rolling ray machines arranged with hydraulic pressure refrigerating function and in oblique L-type It is compound, form TPO earthwork composite material.
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CN107791642A (en) * 2017-09-21 2018-03-13 北京东方雨虹防水技术股份有限公司 Conductive geomembrane and preparation method
CN111086280A (en) * 2019-12-25 2020-05-01 山东省金业土工材料有限公司 Corrosion-resistant HDPE geomembrane and processing method thereof
CN114193869A (en) * 2022-01-04 2022-03-18 浙江红饰和家居有限公司 Functional wall cloth and preparation method thereof

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CN203004415U (en) * 2012-12-20 2013-06-19 唐山德生防水股份有限公司 High polymer compound waterproof roll with welded overlap edge
CN104553188A (en) * 2014-12-19 2015-04-29 岳阳东方雨虹防水技术有限责任公司 Thermoplastic polyolefin waterproof coiled material and preparation method

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CN203004415U (en) * 2012-12-20 2013-06-19 唐山德生防水股份有限公司 High polymer compound waterproof roll with welded overlap edge
CN104553188A (en) * 2014-12-19 2015-04-29 岳阳东方雨虹防水技术有限责任公司 Thermoplastic polyolefin waterproof coiled material and preparation method

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CN107791642A (en) * 2017-09-21 2018-03-13 北京东方雨虹防水技术股份有限公司 Conductive geomembrane and preparation method
CN111086280A (en) * 2019-12-25 2020-05-01 山东省金业土工材料有限公司 Corrosion-resistant HDPE geomembrane and processing method thereof
CN114193869A (en) * 2022-01-04 2022-03-18 浙江红饰和家居有限公司 Functional wall cloth and preparation method thereof
CN114193869B (en) * 2022-01-04 2024-03-22 浙江红饰和家居有限公司 Functional wall cloth and preparation method thereof

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