CN110295456A - A kind of short fine geotextiles of composite terylene and preparation method - Google Patents
A kind of short fine geotextiles of composite terylene and preparation method Download PDFInfo
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- CN110295456A CN110295456A CN201910402014.9A CN201910402014A CN110295456A CN 110295456 A CN110295456 A CN 110295456A CN 201910402014 A CN201910402014 A CN 201910402014A CN 110295456 A CN110295456 A CN 110295456A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/413—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing granules other than absorbent substances
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/20—Industrial for civil engineering, e.g. geotextiles
- D10B2505/204—Geotextiles
Abstract
The invention discloses a kind of short fine geotextiles of composite terylene and preparation methods, are made of the raw material of following weight percent: 80~90% terylene short fiber, 5~15% polypropylene chopped fiber and 1~5% polypropylene composite materials particle.The mechanical strength of terylene geotextiles, bursting power, ageing resistance, anti-flammability can be improved in the short fine geotextiles of composite terylene of the invention and technique, can reduce product thickness in the case of same surface density, and be not easy to tear from right angle orientation.
Description
Technical field
The invention belongs to field of nonwoven fabric technology, are specifically related to a kind of short fine geotextiles of composite terylene and preparation method.
Background technique
Terylene short fiber geotextiles have the function of isolation, filtering, draining, reinforcement, protection, maintenance etc..Its feature is flexibility
It is good, corrosion-resistant, acid and alkali-resistance；And there is good water penetration, filtering and isolation performance are easy for construction.It is mainly used in water conservancy, water
Electricity highway, railway, harbour, airport, sports buildings, tunnel, Coastal beach, is enclosed tideland for cultivation, the engineering fields such as environmental protection.Terylene short fiber soil
Work cloth category non-woven fabrics, without weaving, stability is poor compared with textile cloth.
Currently, common terylene short fiber geotextiles mainly pass through shredding-mixed cotton-combing-lapping-needle thorn consolidation technique system
It makes.It is easy to tear from right angle orientation using the terylene short fiber geotextiles of this technique manufacture, bursting power is relatively poor, same face
The geotextiles of density, thickness want thick very much；Can reduce the thickness of geotextiles using the method for thermocompression forming, but terylene fusing point compared with
Height, mostly at present is that 4080 fibers (eutectic cotton) is added to make binder, could carry out thermocompression forming at relatively low temperatures, but
4080 fiber costs are higher.
In addition, terylene short fiber geotextiles, polypropylene chopped fiber geotextiles require resistance to ag(e)ing, although terylene short fiber geotextiles are anti-
Aging is strong compared with polypropylene chopped fiber geotextiles resistance to ag(e)ing, and still, being mainly used as terylene short fiber geotextiles is slope protection, applicable situation
Mostly outdoor, Geotextile covering is few, everyday exposing to the weather, and anti-aging property also can be poor.And terylene short fiber geotextiles
Meet open fire easily, poor fire.
Summary of the invention
The object of the present invention is to provide a kind of short fine geotextiles of composite terylene and preparation methods, and terylene geotextiles can be improved
Mechanical strength, bursting power, aging, anti-flammability reduce product thickness in the case of same surface density, and are not easy from right angle orientation
Tearing.To achieve the above object, the present invention adopts the following technical scheme:
First aspect present invention provides a kind of composite terylene short fine geotextiles, the composition including following parts by weight percentage:
80~90% terylene short fiber, 5~15% polypropylene chopped fiber and 1~5% polypropylene composite materials particle.
Preferably, the short fine geotextiles of composite terylene of the invention, the composition including following parts by weight percentage: 85~90%
Terylene short fiber, 7~13% polypropylene chopped fiber and 2~3% polypropylene composite materials particles.
The polypropylene composite materials particle is prepared by the following method:
(1) 90 parts of polypropylene, 5 parts of anti-aging agents, 2 parts of fire retardants, 3 parts of plasticizer are added into reciprocating kneading machine altogether
Mixed, control heating temperature is 180~220 DEG C, is kneaded 1~1.5 hour；
(2) it squeezes out: the mixture after mixing being put into single screw extrusion machine and is squeezed out, controlled at 130~160 DEG C；
(3) be granulated: the mixture after extrusion enters pelletizer granulation；
(4) it grinds: by the polypropylene composite materials particulate abrasive after granulation to 50~80 mesh to obtain the final product.
The polypropylene is isotactic polypropylene；The anti-aging agent are as follows: antioxidant 1010, irgasfos 168, weather resisting agent 3808,
Any one or a few mixing in weather resisting agent 3853；The fire retardant is antimony oxide；
The plasticizer are as follows: any one or a few mixing in DOP, DEHP, DBP, DEP, DCHP.
Second aspect of the present invention provides a kind of preparation method of the short fine geotextiles of composite terylene, comprising the following steps:
Packaged terylene short fiber and polypropylene chopped fiber are sent into shredding case and carry out shredding by S01；
Terylene short fiber and polypropylene chopped fiber are sent into blending box and carry out mixed cotton by S02；
S03 carries out cotton carding to mixture using carding machine, and mechanical networking is sent into lapping machine and carries out lapping；
Polypropylene composite materials particle is uniformly sprayed on fibre web by S04 using aerodynamic particle sprinkler；
S05 carries out needle thorn consolidation using needing machine；
S06 carries out thermocompression forming using hot press；
S07, trimming wind to obtain composite terylene geotextiles.
The reciprocating speed of the lapping machine is divided into ten sections: five sections, reversed five sections positive.The aerodynamic particle sprinkler according to
The size of net is laterally done at least provided with a spray head and is at the uniform velocity moved back and forth.The needing machine is at least arranged two.The hot press
In four compound boiling hot rollers are at least set；One layer of Teflon is coated on the compound boiling hot roller and scalds roller both ends, and digital display thermometer is set；
Preferably, the temperature setting of the compound boiling hot roller is 110~130 DEG C.
Beneficial effect
(1) resistance to ag(e)ing, the anti-flammability of geotextiles are improved；
(2) mechanical strength, the bursting power of geotextiles are improved；
(3) in the case where identical surface density, the thickness of geotextiles is reduced；
(4) make geotextiles be not easy to tear from right angle orientation, there is good tear-proof stability.
Detailed description of the invention
Fig. 1: the process flow chart of composite terylene geotextiles of the invention.
Fig. 2: schematic cross-section after the mixing of terylene short fiber and PP GRANULES of the present invention.
In figure: 1, terylene short fiber, 2, polypropylene composite materials particle.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
As background technology part introduction, for mechanical strength, bursting power, the resistance to ag(e)ing, resistance for improving terylene geotextiles
Combustion property, keeps its lighter, and stability is not more preferably tearable, and the present invention provides a kind of composite terylene short fine geotextiles, including following
The composition of parts by weight percentage: 80~90% terylene short fiber, 5~15% polypropylene chopped fiber and 1~5% polypropylene composite materials
Grain.
Preferably, the short fine geotextiles of composite terylene of the invention, the composition including following parts by weight percentage: 85~90%
Terylene short fiber, 7~13% polypropylene chopped fiber and 2~3% polypropylene composite materials particles.
The polypropylene composite materials particle is prepared by the following method:
(1) it is blended: 90 parts of polypropylene, 5 parts of anti-aging agents, 2 parts of fire retardants, 3 parts of plasticizer is added to reciprocating kneading machine
Middle blending, control heating temperature are 180~220 DEG C, are kneaded 1~1.5 hour；
(2) it squeezes out: the mixture after mixing being put into single screw extrusion machine and is squeezed out, controlled at 130~160 DEG C；
(3) be granulated: the mixture after extrusion enters pelletizer granulation；
(4) it grinds: by the polypropylene composite materials particulate abrasive after granulation to 50~80 mesh to obtain the final product.
The polypropylene is isotactic polypropylene；The anti-aging agent are as follows: antioxidant 1010, irgasfos 168, weather resisting agent 3808,
Any one or a few mixing in weather resisting agent 3853；The fire retardant is antimony oxide；The plasticizer are as follows: DOP,
Any one or a few mixing in DEHP, DBP, DEP, DCHP.
Wherein, polypropylene fibre and polypropylene composite materials particle are added mainly as the binder of terylene short fiber.The fusing point of terylene is 255
DEG C or more, and polyacrylic fusing point is lower.Under 110~130 DEG C of heating temperature, the composite particles meeting of polypropylene chopped fiber and spraying
Melt, is generated after cooling and good be adhered effect.It can be dropped significantly using polypropylene chopped fiber, composite particles as the binder of terylene short fiber
Low-heat presses setting temperature, improves the mechanical strength of material, saves production cost, and hot-forming rear polypropylene chopped fiber is in terylene short fiber
Between be pressed into small polypropylene screen, reduce the aperture formed between terylene short fiber, make generate pore size filter become smaller, improve
Filter effect.In order to improve the ageing-resistant performance and anti-flammability of product, anti-aging agent and fire retardant is added.And anti-aging agent with it is fire-retardant
The fusing point of agent is higher, is added to merely in the geotextiles that terylene short fiber is blended with polypropylene chopped fiber, since thermocompression forming temperature is lower,
Anti-aging agent is infusibilized with fire retardant, is still present in geotextiles with powder or particle form, is unable to reach anti-aging or fire-retardant
Effect.After being blended with PP GRANULES, the polypropylene composite materials particle with excellent anti ageing property and flame retardant property is formed, is added
Into polyester fiber can effective integration, assign after thermocompression forming geotextiles ageing-resistant performance.Presently commercially available polypropylene fibre substantially by
Isotactic polypropylene is made, and for the consistency for keeping material, isotactic polypropylene is selected to be added in geotextiles.It is thin using 50~80 mesh
The polypropylene composite materials particle of little particulate, small in size, compared with the polypropylene chopped fiber with weight, polypropylene composite materials particle is shorter than polypropylene fibre
It is fine quantitatively mostly very much.The two of equivalent weight is added in terylene short fiber, and the area of polypropylene composite materials particle dispersion is bigger,
More terylene short fibers can be bonded, so polypropylene composite materials particle, which is added, can effectively reduce the additional amount of polypropylene fibre.But it is also due to
This reason, needs to control the additional amount of polypropylene composite materials particle, addition it is too many, hold after polypropylene composite materials particle thermocompression forming
It is bonded to piece easily to affect the filtration of geotextiles.And PP GRANULES processing when unlike production polypropylene fibre when need plus
Enter the coupling agent of softening, so hardness is big, additional amount will affect the flexibility of geotextiles too much.Meanwhile the density of polypropylene fibre is low,
Mechanical strength is big, and after addition, the terylene geotextiles of same surface density, thickness is much smaller, can also improve terylene geotextiles
Mechanical strength.
A kind of short fine geotextiles of composite terylene of the present invention are prepared by following methods:
Terylene short fiber and polypropylene chopped fiber are sent into shredding case and carry out shredding by S01；
Terylene short fiber and polypropylene chopped fiber are sent into blending box and carry out mixed cotton by S02；
S03 carries out cotton carding to mixture using carding machine, and mechanical networking is sent into lapping machine and carries out lapping；
Polypropylene composite materials particle is uniformly sprayed on fibre web by S04 using aerodynamic particle sprinkler；
S05 carries out needle thorn consolidation using needing machine；
S06 carries out thermocompression forming using hot press；
S07, trimming wind to obtain composite terylene geotextiles.
The reciprocating speed of the lapping machine is divided into ten sections: five sections, reversed five sections positive.Forward direction speed is 1 speed to 5 speed, instead
It is 5 speed to 1 speed to speed.Every section is driven by different motors, the rotational frequency of each motor is adjusted, so that lapping curtain is not
When with position, speed is different.Every section of speed is adjusted according to the surface density of required geotextiles, the surface density of product can be made equal
Even, grammes per square metre difference is no more than 10g/cm2。
The aerodynamic particle sprinkler laterally does at least provided with a spray head according to the size of net and at the uniform velocity moves back and forth.Terylene
When with being folded into certain thickness fibre web through lapping machine after polypropylene chopped fiber networking, the spray head of aerodynamic particle sprinkler is in the top of net
It does and at the uniform velocity moves back and forth, polypropylene composite materials particle can be uniformly sprayed on fibre web.
The needing machine is at least arranged two.Needing machine can not only consolidate the net completed, the thickness for reducing net, guarantee product
Strainability, can also needle pierce during so that polypropylene composite materials particle is preferably mixed with terylene short fiber.It is short by terylene
Mainly to intersect or parallel mode exists between fibre, polypropylene composite materials particle is stained in the infall of short fibre or two after mixing
Between parallel short fibre, polypropylene composite materials particle fusion after heating will intersect after cooling and shaping or parallel short fibre is bonded in one
It rises, there is very high bonding efficiency, make the geotextiles produced be not easy to tear from right angle orientation, increase the stabilization of product
Property.
Four compound boiling hot rollers are at least set in the hot press；One layer of Teflon is coated on the compound boiling hot roller and both ends are set
Set digital display thermometer；Preferably, the temperature setting of the compound boiling hot roller is 110~130 DEG C.Thermometer setting is each compound boiling hot
The both ends of roller, it is ensured that temperature is consistent in entire heating region, and is not less than 110 DEG C；One layer of Teflon of cladding can on boiling hot roller
Ensure in hot pressing, the polypropylene (polypropylene fibre) of melting is non-sticky to be sticked on compound boiling hot roller.These are produced after can making hot pressing
Geotextiles thickness uniformity, stability is good.
Embodiment 1
1. composition:
88% terylene short fiber, 9% polypropylene chopped fiber and 3% polypropylene composite materials particle
2. setting product parameters:
Surface density: 300 ± 5g/cm2
3. preparation method:
Packaged terylene short fiber and polypropylene chopped fiber are sent into shredding case and carry out shredding by S01；
Terylene short fiber and polypropylene chopped fiber are sent into blending box and carry out mixed cotton by S02；
S03 carries out cotton carding to mixture using carding machine, and mechanical networking is sent into lapping machine and carries out lapping；
Polypropylene composite materials particle is uniformly sprayed at online by S04 using aerodynamic particle sprinkler；
S05 carries out needle thorn consolidation using needing machine；
S06 carries out thermocompression forming using hot press；
S07, trimming wind to obtain composite terylene geotextiles.
4. number of devices: 2, shredding case；Blending box 1；1, carding machine；Mechanical lapping machine one；With spray head
Pneumatic sprinkler 1；Needing machine 2；Hot press with six compound boiling hot rollers 1.
5. device parameter: 1 speed of positive lapping speed (motor rotation frequency) to 5 speed is successively are as follows: 22.50Hz, 21.50Hz,
24.50Hz, 21.00Hz, 23.00Hz；Reversed 5 speed of lapping speed to 1 speed successively are as follows: 22.50Hz, 21.50Hz, 24.50Hz,
21.00Hz 23.00Hz.The temperature setting of roller is scalded in hot pressing are as follows: 120 DEG C.
Comparative example 1
1. composition:
100% terylene short fiber
2. setting product parameters:
Surface density: 300 ± 5g/cm2
3. preparation method:
S01, by packaged terylene short fiber shredding；
Terylene short fiber after shredding is combed lapping by S02；
S03, needle thorn consolidation；
S04, trimming, which is wound, is made terylene short fiber geotextiles.
4. number of devices: 1, shredding case；Blending box 1；1, carding machine；Needing machine 3；
5. device parameter: parameter is the same as experimental example 1.
Comparative example 2
1. raw material forms:
88% terylene short fiber, the short fibre in the 4080 of 12%
2. setting product parameters:
Surface density: 300 ± 5g/cm2
3. preparation method:
S01, will be by the short fine shredding of packaged terylene short fiber and 4080；
S02 by terylene short fiber and the 4080 short fine mixed cotton after shredding and is combed；
S03, needle thorn consolidation；
S05, lapping, thermocompression forming；
S06, trimming wind to obtain composite terylene geotextiles.
4 number of devices: 2, shredding case；Blending box 1；1, carding machine；Needing machine 3；Heat with six compound boiling hot rollers
Press 1.
5. device parameter: parameter is the same as experimental example 1.
Comparative example 3
1. raw material forms:
88% terylene short fiber, 12% polypropylene chopped fiber
2. setting product parameters:
Surface density: 300 ± 5g/cm2
3. preparation method:
With comparative example 2.
4. number of devices: with to experimental example 1.
5. device parameter: parameter is the same as experimental example 1.
Test example 1
Thickness Test: it using YT060 type geotextiles thickness gauge prepared by embodiment 1, comparative example 1, comparative example 2, comparative example 3
Geotextiles carry out thickness measurement.Acquired results are shown in Table 1.
1 Thickness Test Comparative result of table
| Project | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Thickness cm | 1.1 | 2.6 | 1.8 | 1.3 |
As can be seen from Table 1, for geotextiles produced by the present invention in same surface density, thickness is minimum, more solid than needle thorn
Geotextiles made from connection, thickness to when young 50% or more.
Test example 2
Test for tensile strength: it using universal electrical puller system prepared by embodiment 1, comparative example 1, comparative example 2, comparative example 3
Geotextiles carry out mechanical strength measurement.Acquired results are shown in Table 2.
2 test for tensile strength Comparative result of table
| Project | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Tensile strength MPa | 12.07 | 9.51 | 9.83 | 11.33 |
As can be seen from Table 2, geotextiles mechanical performance produced by the present invention is best.
Test example 3
Ageing properties test: using constant temperature ageing oven and universal electrical tensile testing machine to embodiment 1, comparative example 1, comparison
Geotextiles prepared by example 2, comparative example 3 carry out ageing properties measurement.Degradation condition are as follows: 100 DEG C, 30d, by embodiment 1, right
Geotextiles prepared by ratio 1, comparative example 2, comparative example 3 are put into the constant temperature ageing oven that temperature setting is 100 DEG C, are taken after 30 days
Out, after being placed at room temperature for for 24 hours, tensile strength measurement is carried out with universal electrical tensile testing machine, is carried out with the tensile strength before aging
Compare to get the aging change rate of tensile strength is arrived.Acquired results are shown in Table 3.
3 machine ageing properties comparison of test results of table
As can be seen from Table 3, after 30 days 100 DEG C of degradations, after geotextiles aging produced by the present invention
Tensile strength change is minimum, and aging change rate illustrates that ageing-resistant performance is best lower than 3 times of other comparative examples or more.
Test example 4
Tearing brute force (right angle orientation) test: using universal electrical puller system to embodiment 1, comparative example 1, comparative example 2, right
Geotextiles prepared by ratio 3 carry out tearing brute force measurement.Acquired results are shown in Table 4.
4 tearing brute force comparison of test results of table
| Project | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Tearing brute force KN | 0.75 | 0.24 | 0.45 | 0.51 |
As can be seen from Table 4, geotextiles produced by the present invention have excellent tearing brute force (right angle orientation), stability compared with
It is good.
Test example 5
CBR bursting strength test: using digital textile BURSTING STRENGTH instrument to embodiment 1, comparative example 1, comparative example 2, right
Geotextiles prepared by ratio 3 carry out bursting strength measurement.Acquired results are shown in Table 5
5 bursting strength comparison of test results of table
| Project | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Bursting strength KN | 3.5 | 1.5 | 2.5 | 3.3 |
As can be seen from Table 5, polypropylene (polypropylene fibre), which is added, can effectively increase the bursting strength of geotextiles, and the present invention is made
Geotextiles bursting strength it is best.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of short fine geotextiles of composite terylene, which is characterized in that be made of the raw material of following weight percent: 80~90%
Terylene short fiber, 5~15% polypropylene chopped fiber and 1~5% polypropylene composite materials particle.
2. a kind of short fine geotextiles of composite terylene according to claim 1, which is characterized in that by following weight percent
Raw material is made: 85~90% terylene short fiber, 7~13% polypropylene chopped fiber and 2~3% polypropylene composite materials particles.
3. a kind of short fine geotextiles of composite terylene according to claim 1 or 2, it is characterised in that: the polypropylene composite materials
Particle is prepared by lower section method:
(1) it is blended: 90 parts of polypropylene, 5 parts of anti-aging agents, 2 parts of fire retardants, 3 parts of plasticizer is added into reciprocating kneading machine altogether
Mixed, control heating temperature is 180~220 DEG C, is kneaded 1~1.5 hour；
(2) it squeezes out: the mixture after mixing being put into single screw extrusion machine and is squeezed out, controlled at 130~160 DEG C；
(3) be granulated: the mixture after extrusion enters pelletizer granulation；
(4) it grinds: by the polypropylene composite materials particulate abrasive after granulation to 50~80 mesh to obtain the final product.
4. a kind of short fine geotextiles of composite terylene according to claim 3, which is characterized in that the polypropylene is poly- for isotactic
Propylene.
5. a kind of short fine geotextiles of composite terylene according to claim 3, it is characterised in that: the anti-aging agent are as follows: antioxygen
Agent 1010, irgasfos 168, any one or a few mixing in weather resisting agent 3808, weather resisting agent 3853；The fire retardant is three oxygen
Change two antimony；The plasticizer are as follows: any one or a few mixing in DOP, DEHP, DBP, DEP, DCHP.
6. the preparation method of the short fine geotextiles of the described in any item composite terylenes of claim 1-5, which is characterized in that including following
Step:
Terylene short fiber and polypropylene chopped fiber are sent into shredding case and carry out shredding by S01；
Terylene short fiber and polypropylene chopped fiber are sent into blending box and carry out mixed cotton by S02；
S03 carries out cotton carding to mixture using carding machine, and mechanical networking is sent into lapping machine and carries out lapping；
Polypropylene composite materials particle is uniformly sprayed on fibre web by S04 using aerodynamic particle sprinkler；
S05 carries out needle thorn consolidation using needing machine；
S06 carries out thermocompression forming using hot press；
S07, trimming wind to obtain composite terylene geotextiles.
7. preparation method according to claim 6, it is characterised in that: the reciprocating speed of the lapping machine is divided into ten sections: just
To five sections, reversed five sections.
8. preparation method according to claim 6, it is characterised in that: the aerodynamic particle sprinkler according to the size of net extremely
It laterally does equipped with a spray head and at the uniform velocity moves back and forth less.
9. preparation method according to claim 6, it is characterised in that: the needing machine is at least arranged two.
10. preparation method according to claim 6, it is characterised in that: be at least arranged in the hot press four it is compound scald
Roller；One layer of Teflon mesh belt is coated on the compound boiling hot roller and scalds roller both ends, and digital display thermometer is set；Preferably, described compound boiling hot
The temperature setting of roller is 110~130 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112267193A (en) * | 2020-09-11 | 2021-01-26 | 青铜峡市华龙塑料工业有限责任公司 | Thick and thin filament geotextile |
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| CN110295456B (en) | 2022-02-18 |
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