CN109337236A - A kind of light-duty PVC conveyer belt of cold-resistant, wear-resisting and preparation method thereof - Google Patents
A kind of light-duty PVC conveyer belt of cold-resistant, wear-resisting and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
- B65G15/34—Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/0023—Use of organic additives containing oxygen
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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Abstract
The present invention relates to light-duty PVC conveyer belts of a kind of cold-resistant, wear-resisting and preparation method thereof, including following parts by weight of component: 85-125 parts of PVC, 50-80 parts of plasticizer, 15-60 parts of cold resistant plasticizers, 4-5 parts of heat stabilizers, 0.1-1 parts of foaming agents, 0.1-0.5 parts of blowing promotors, 10-20 parts of abrasion resistance modifiers.Compared with prior art, the present invention obtains the light-duty PVC conveyer belt of function admirable using fretting map technique, and production cost is low, saves energy consumption, and wearability is good, and lower temperature resistance is good, and manufacturing process is simple, efficiently, is easy to large-scale production.
Description
Technical field
The invention belongs to conveyer belt manufacturing technology fields, are related to a kind of cold-resistant, wear-resisting light-type conveyer belt preparation method.
Background technique
PVC conveyer belt generally adds PVC material to form by inner skeleton.Its framework material is generally polyester fiber and cotton yarn is compiled
Whole belt core made of knitting, structure are fluffy；Belt carcass woven gap and fiber are sufficiently impregnated by prepared slurry (PVC material)
Inside is plasticized through high temperature, forms an entirety.
In use, conveyer belt is easy to appear crack to traditional PVC conveyer belt, cause the service life of conveyer belt compared with
It is short.Especially conveying frozen food when, conveyer belt be in always lower temperature carry out using, be easy it is premature hardening, embrittlement,
It cracks and loses elasticity specific to conveyer belt, scrapped so as to cause conveyer belt.
Corvic (PVC) has superior corrosion resistance, insulating properties and excellent mechanical property, workability and valence
Lattice are cheap and are widely used as light-type conveyer belt coating resin.But PVC resistance to low temperature is poor, in the lower situation of ambient temperature
Under, product, which is hardened, to become fragile, and elasticity is small, is easy brittle failure, light-type conveyer belt is made not to be suitable for using under cryogenic.In addition, resistance to
Mill property is better, and the service life of light-type conveyer belt can be longer.Currently, high-performance, lightweight, it is multi-functional can be improved conveyer belt use
Service life and transfer efficiency save energy consumption, it has also become a direction of light-type conveyer belt development.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind to have good mechanics
Performance, low cost and cold-resistant, the light-duty PVC conveyer belt of cold-resistant, wear-resisting that wearability is good and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions: a kind of light-duty PVC conveyer belt of cold-resistant, wear-resisting, special
Sign is, including following parts by weight of component: 85-125 parts of PVC, 50-80 parts of plasticizer, 15-60 parts of cold resistant plasticizers, 4-5 parts of heat
Stabilizer, 0.1-1 parts of foaming agents, 0.1-0.5 parts of blowing promotors, 10-20 parts of abrasion resistance modifiers.
The PVC is PVC paste resin, and degree of polymerization 1000-1800, polyvinyl chloride resin density is 0.8-1.1g/ after foaming
cm3, particle size range is commercial product generally at 0.1~2.0 μm, and polyvinyl chloride (PVC) paste resin belongs to Corvic
One product branch, since it is at paste function admirable and good dispersion property, processing and forming has equipment inexpensive, processing mould
Have simple cheap, can be made into special shape, foaming is easy, and the product number that is heated is few, and can a small amount of, multi items production etc. it is excellent
Point.
The plasticizer is phthalic acid two (2- ethyl hexyl) ester (DOP), and dibutyl phthalate (DBP) is adjacent
Phthalic acid di-n-octyl (DNOP), one or more of dioctyl terephthalate (DOTP).
The cold resistant plasticizer is methyl ricinoleate.The cold resistance of PVC plasticizer is related to its structure, generally mixes
The good plasticizer of property, cold resistance is poor, and the plasticizer cold resistance containing straight chained alkyl is very good, ricinoleic acid first
Just containing straight chained alkyl in ester molecular structure, methyl ricinoleate is the derived product of castor oil, and technology content and added value are high,
It is environmentally protective, function admirable product, the softening temperature of PVC product can be reduced, hence it is evident that improves its cold tolerance.Castor-oil plant alcohol
Sour methyl esters also has that flexibility is good, and heat, good light stability, volatility is low, and good flame resistance, migration is small, and it is excellent that electrical insulating property is good etc.
Point.
The heat stabilizer is barium zinc heat stabilizer or calcium zinc heat stabilizer.
The foaming agent is azodicarbonamide (AC).PVC fretting map product refers to polyvinyl chloride resin, foaming agent and hair
Bubble auxiliary agent matches, and forms through specific foam process, in addition to the distinctive performance of PVC, also has light, heat preservation, damping etc.
Excellent performance, and PVC low ratio foamed product is smaller to its Effect on Mechanical Properties, therefore the sector have developed rapidly in recent years, answer
Scope and sphere constantly expand, but are mainly used in PVC boardy product.
The blowing promotor is ZnO.
The abrasion resistance modifier is hollow glass micropearl.Hollow glass micropearl main component is borosilicate, and granularity is
10-250 microns, wall thickness be 1-2 micron of hollow ball, density 0.1-0.7g/ml, it is small, spherical, light with granularity, every
The multi-functional characteristic such as heat, sound insulation, high temperature resistant, wear-resisting, and mobility, dispersibility, stability are good, can be filled in most of heat
Gu, in thermoplastic resin, play mitigation product weight, reduce cost, resistance to compression, impact resistance, sound-insulating heat-insulation property, insulating properties etc. are made
With therefore, hollow glass micropearl is known as " the Space Age new material " of 21 century.
The preparation method of the above-mentioned light-duty PVC conveyer belt of cold-resistant, wear-resisting, which is characterized in that method includes the following steps:
(1) PVC and plasticizer are mixed by the parts by weight in above-mentioned formula, and is stirred evenly under the conditions of 40-50 DEG C, it is cold
But to room temperature, other remaining ingredients are added, simultaneously vacuum defoamation is stirred, obtains single layer PVC coating paste；
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；Polyester backbone fabric is city
Sell product, for example, industrial (Suzhou) company of the Co., Ltd purchase in Yadong 3630 models polyester backbone fabric；
(3) primary coat PVC adhesive layer is scratched using doctor blade process by the polyester backbone fabric after sizing obtained by step (2)
On surface, single layer PVC coating paste made from step (1) is then pressed into conveyer belt thickness requirement and is scratched in PVC gluing layer surface,
PVC coating is obtained, cures PVC coating later controlled at 150~220 DEG C, laminating roll to be coated, drying, setting treatment knot
Shu Hou arranges winding, obtains PVC light-type conveyer belt；Wherein PVC adhesive layer is added to PVC paste by 2-10% for PVC adhesive
It is uniformly mixed after material, scratches the coating of formation, it is room temperature that PVC adhesive, which scratches condition, and machine walking speed is 5-8m/min, and pulling force is
120~210N, PVC adhesive are commercial product, such as the PVC adhesive of the Q12303 model of Shanghai admiration companies market；
(4) conveyer belt thickness requirement is pressed, after the reverse side primary coat PVC adhesive of PVC light-type conveyer belt is made in step (3), with
The PVC coating of another conveyer belt is bonded, and binding temperature is 130~200 DEG C, and tension is 140~210Kg, and machine walking speed is
2~5m/min arranges winding, obtains the double-deck PVC light-type conveyer belt；
(5) conveyer belt thickness requirement is pressed, lamination coating can be carried out by step (4) and multilayer PVC light-type conveyer belt is made.
The condition of PVC coating process is scratched described in step (3) are as follows: the surface temperature of control skeleton pre-setting fabric is 80
~130 DEG C, machine walking speed is 2-8m/min, and pulling force is 120~210N.
Based on the above research achievement, for the deficiency of PVC light-type conveyer belt in the prior art, the present invention is in flexible PVC
In formula, hollow glass micropearl, cold resistant plasticizer and a small amount of foaming agent are added, a kind of light-duty conveying of PVC of simple process is provided
The production technology of band, obtaining has excellent mechanical performances, low cost and PVC light-type conveyer belt cold-resistant, that wearability is good, will
Good economic benefit can be brought.
Compared with prior art, the invention has the benefit that
(1) fretting map technique is used, the density of PVC coating is reduced, polyvinyl chloride resin density is 0.8-1.1g/cm after foaming3,
With light, material-saving, while keeping excellent mechanical property；
(2) methyl ricinoleate cold resistant plasticizer is added, good environmental protection has good mobility, is conducive to PVC paste
The doctor blade process of resin, and PVC light-type conveyer belt cold resistance is improved, it can be used at -40 DEG C of low temperature；
(3) wearability of material is significantly improved with light weight, the hollow glass micropearl that intensity is high, heat-proof quality is good and resist
Impact property, and assign light-type conveyer belt low-density, high measuring body performance.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Embodiment 1
(1) PVC and plasticizer are mixed by the parts by weight in formula, and is stirred evenly under the conditions of 45 DEG C, be cooled to room
Temperature adds other remaining ingredients, stirs simultaneously vacuum defoamation, obtains PVC coating paste.
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；
(3) it is scratched using doctor blade process primary coat PVC adhesive layer in the surface of step (2) polyester surface layer skeleton pattern bonded fabrics
On, then PVC coating paste made from step (1) is scratched, coating layer thickness 1mm makes PVC later controlled at 150 DEG C
Coating curing, coating density 1.1g/cm3, laminating roll to be coated, drying after setting treatment, arrange winding, obtain list
Layer PVC light-type conveyer belt；
The formula of step (1) the PVC coating paste is as follows:
85 parts of PVC (PM-31)；
50 parts of DOP；
20 parts of methyl ricinoleate；
4 parts of calcium zinc stabilizer；
0.1 part of AC foaming agent；
0.1 part of ZnO；
10 parts of hollow glass micropearl.
Embodiment 2
(1) PVC and plasticizer are mixed by the parts by weight in formula, and is stirred evenly under the conditions of 45 DEG C, be cooled to room
Temperature adds other remaining ingredients, stirs simultaneously vacuum defoamation, obtains PVC coating paste.
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；
(3) it is connect on the surface of step (2) polyester surface layer skeleton pattern bonded fabrics using doctor blade process primary coat PVC adhesive layer
PVC coating paste made from step (1) is scratched, coating layer thickness 0.5mm makes PVC coating later controlled at 160 DEG C
Curing, pressure roller, drying, coating density 1.01g/cm3, winding；
(4) it after step (3) to be made to the reverse side fabric bottom surface gluing of PVC conveyer belt, is bonded, binding temperature 160
DEG C, tension 200Kg, machine walking speed is 5m/min, arranges winding, obtains the double-deck PVC light-type conveyer belt.
The formula of step (1) the PVC coating paste is as follows:
100 parts of PVC (P440)
60 parts of DOP
30 parts of methyl ricinoleate
4.5 parts of calcium zinc stabilizer
0.4 part of AC foaming agent
0.2 part of ZnO
15 parts of hollow glass micropearl
Embodiment 3
(1) PVC and plasticizer are mixed by the parts by weight in formula, and is stirred evenly under the conditions of 45 DEG C, be cooled to room
Temperature adds other remaining ingredients, stirs simultaneously vacuum defoamation, obtains PVC coating paste.
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；
(3) it is connect on the surface of step (2) polyester surface layer skeleton pattern bonded fabrics using doctor blade process primary coat PVC adhesive layer
PVC coating paste made from step (1) is scratched, coating layer thickness 0.3mm makes PVC coating later controlled at 180 DEG C
Curing, pressure roller, drying, coating density 0.85g/cm3, winding；
(4) it after step (3) to be made to the fabric bottom surface gluing of PVC conveyer belt, is carried out with the PVC coating of another conveyer belt
Fitting, binding temperature are 180 DEG C, tension 210Kg, and machine walking speed is 6m/min, arrange winding.
(5) conveyer belt thickness requirement is pressed, carries out being bonded obtained three layers of PVC light-type conveyer belt by step (4).
The formula of step (1) the PVC coating paste is as follows:
125 parts of PVC (SC-1600),
80 parts of DOP,
50 parts of methyl ricinoleate,
5 parts of calcium zinc stabilizer,
1 part of AC foaming agent,
0.5 part of ZnO,
20 parts of hollow glass micropearl.
(comparative example is not add cold resistant plasticizer, abrasion resistance modifier, foaming agent to embodiment and comparative example the performance test results
And blowing promotor)
As can be seen from data in the table, -40 DEG C of conveyer belt of the present invention/1h bending strength is lower than comparative example, cold resistance
It is substantially better than comparative example；Mass loss is lower than comparative example after abrasion 10,000 times of conveyer belt of the present invention, and abrasion resistance is also obvious excellent
In comparative example, other mechanical properties are suitable with comparative example；In addition, by adding foaming agent on a small quantity, coating density is slightly below compared
Example, it is light, it is possible to reduce energy consumption when conveying transport, therefore, it can be seen that PVC light-type conveyer belt of the present invention has good mechanics
Performance, it is inexpensive, cold-resistant, wearability is good.
Embodiment 4
(1) PVC and plasticizer are mixed by the parts by weight in formula, and is stirred evenly under the conditions of 40 DEG C, be cooled to room
Temperature adds other remaining ingredients, stirs simultaneously vacuum defoamation, obtains PVC coating paste.
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；
(3) primary coat PVC adhesive layer is scratched using doctor blade process by the polyester backbone fabric after sizing obtained by step (2)
On surface, the surface temperature for then controlling skeleton pre-setting fabric is 80 DEG C, and machine walking speed is 5m/min, pulling force 120N；It will
Single layer PVC coating paste made from step (1) presses conveyer belt thickness requirement blade coating in PVC gluing layer surface, and coating layer thickness is
0.3mm obtains PVC coating, cures PVC coating later controlled at 150 DEG C, pressure roller, drying, and coating density is
0.98g/cm3, winding；
(4) it after step (3) to be made to the fabric bottom surface gluing of PVC conveyer belt, is carried out with the PVC coating of another conveyer belt
Fitting, binding temperature are 130 DEG C, tension 140Kg, and machine walking speed is 2m/min, arrange winding.
(5) conveyer belt thickness requirement is pressed, carries out being bonded obtained three layers of PVC light-type conveyer belt by step (4).
The formula of step (1) the PVC coating paste is as follows:
125 parts of PVC (SC-1600),
80 parts of DOP,
60 parts of methyl ricinoleate,
4 parts of calcium zinc stabilizer,
0.1 part of AC foaming agent,
0.1 part of ZnO,
10 parts of hollow glass micropearl.
Embodiment 5
(1) PVC and plasticizer are mixed by the parts by weight in formula, and is stirred evenly under the conditions of 50 DEG C, be cooled to room
Temperature adds other remaining ingredients, stirs simultaneously vacuum defoamation, obtains PVC coating paste.
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；
(3) primary coat PVC adhesive layer is scratched using doctor blade process by the polyester backbone fabric after sizing obtained by step (2)
On surface, the surface temperature for then controlling skeleton pre-setting fabric is 130 DEG C, and machine walking speed is 8m/min, pulling force 210N；It will
Single layer PVC coating paste made from step (1) presses conveyer belt thickness requirement blade coating in PVC gluing layer surface, and coating layer thickness is
0.3mm obtains PVC coating, cures PVC coating later controlled at 150 DEG C, pressure roller, drying, and coating density is
1.07g/cm3, winding；
(4) it after step (3) to be made to the fabric bottom surface gluing of PVC conveyer belt, is carried out with the PVC coating of another conveyer belt
Fitting, binding temperature are 200 DEG C, tension 210Kg, and machine walking speed is 5m/min, arrange winding.
(5) conveyer belt thickness requirement is pressed, carries out being bonded obtained three layers of PVC light-type conveyer belt by step (4).
The formula of step (1) the PVC coating paste is as follows:
85 parts of PVC (SC-1600),
50 parts of DOP,
15 parts of methyl ricinoleate,
5 parts of calcium zinc stabilizer,
1 part of AC foaming agent,
0.5 part of ZnO,
20 parts of hollow glass micropearl.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow the person skilled in the art to be
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
The equivalent transformation or modification that refreshing essence is done, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of light-duty PVC conveyer belt of cold-resistant, wear-resisting, which is characterized in that including following parts by weight of component: 85-125 parts of PVC, 50-
80 parts of plasticizer, 15-60 parts of cold resistant plasticizers, 4-5 parts of heat stabilizers, 0.1-1 parts of foaming agents, 0.1-0.5 parts of blowing promotors,
10-20 parts of abrasion resistance modifiers.
2. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the PVC is PVC
Paste resin, degree of polymerization 1000-1800.
3. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the plasticizer is
Phthalic acid two (2- ethyl hexyl) ester (DOP), dibutyl phthalate (DBP), di-n-octyl phthalate (DNOP),
One or more of dioctyl terephthalate (DOTP).
4. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the cold-resistant plasticising
Agent is methyl ricinoleate.
5. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the heat stabilizer
For barium zinc heat stabilizer or calcium zinc heat stabilizer.
6. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the foaming agent is
Azodicarbonamide (AC).
7. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the blowing promotor
For ZnO.
8. the light-duty PVC conveyer belt of a kind of cold-resistant, wear-resisting according to claim 1, which is characterized in that the wear-resisting modification
Agent is hollow glass micropearl.
9. a kind of preparation method of the light-duty PVC conveyer belt of cold-resistant, wear-resisting as described in claim 1, which is characterized in that this method
The following steps are included:
(1) PVC and plasticizer are mixed by the parts by weight in above-mentioned formula, and is stirred evenly under the conditions of 40-50 DEG C, is cooled to
Room temperature adds other remaining ingredients, stirs simultaneously vacuum defoamation, obtains single layer PVC coating paste；
(2) the polyester backbone fabric for being used to prepare light-type conveyer belt is subjected to thermal finalization processing；
(3) primary coat PVC adhesive layer is scratched to the surface of the polyester backbone fabric after sizing obtained by step (2) using doctor blade process
On, single layer PVC coating paste made from step (1) is then pressed into conveyer belt thickness requirement blade coating in PVC gluing layer surface, is obtained
PVC coating cures PVC coating later controlled at 150~220 DEG C, laminating roll to be coated, drying, after setting treatment,
Winding is arranged, PVC light-type conveyer belt is obtained；
(4) conveyer belt thickness requirement is pressed, it is and another after the reverse side primary coat PVC adhesive of PVC light-type conveyer belt is made in step (3)
The PVC coating of conveyer belt is bonded, binding temperature be 130~200 DEG C, tension be 140~210Kg, machine walking speed be 2~
5m/min arranges winding, obtains the double-deck PVC light-type conveyer belt；
(5) conveyer belt thickness requirement is pressed, lamination coating can be carried out by step (4) and multilayer PVC light-type conveyer belt is made.
10. the preparation method of the light-duty PVC conveyer belt of cold-resistant, wear-resisting according to claim 9, which is characterized in that step (3)
The condition of the blade coating PVC coating process are as follows: the surface temperature of control skeleton pre-setting fabric is 80~130 DEG C, and machine is walked
Speed is 2-8m/min, and pulling force is 120~210N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030740.4A CN109337236A (en) | 2018-09-05 | 2018-09-05 | A kind of light-duty PVC conveyer belt of cold-resistant, wear-resisting and preparation method thereof |
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Cited By (6)
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| CN109956259A (en) * | 2019-03-30 | 2019-07-02 | 福尔波西格林输送科技(中国)有限公司 | A kind of low temperature resistant PVC conveyer belt and preparation method thereof |
| CN111285055A (en) * | 2020-02-27 | 2020-06-16 | 江门市南方输送机械工程有限公司 | Air cushion belt conveyor |
| CN111775522A (en) * | 2020-06-16 | 2020-10-16 | 江西嘉润良工业皮带有限公司 | Anti-aging wear-resistant light conveying belt and preparation method thereof |
| CN112048134A (en) * | 2020-09-02 | 2020-12-08 | 南京鸿瑞塑料制品有限公司 | Preparation method of reinforced PVC paste resin |
| CN112064361A (en) * | 2020-08-26 | 2020-12-11 | 南京东润带业有限公司 | One-step formed PVC light conveyor belt and preparation method thereof |
| CN113004615A (en) * | 2021-03-21 | 2021-06-22 | 中裕软管科技股份有限公司 | Micro-foaming fireproof spiral water suction pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109956259A (en) * | 2019-03-30 | 2019-07-02 | 福尔波西格林输送科技(中国)有限公司 | A kind of low temperature resistant PVC conveyer belt and preparation method thereof |
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| CN111775522A (en) * | 2020-06-16 | 2020-10-16 | 江西嘉润良工业皮带有限公司 | Anti-aging wear-resistant light conveying belt and preparation method thereof |
| CN112064361A (en) * | 2020-08-26 | 2020-12-11 | 南京东润带业有限公司 | One-step formed PVC light conveyor belt and preparation method thereof |
| CN112048134A (en) * | 2020-09-02 | 2020-12-08 | 南京鸿瑞塑料制品有限公司 | Preparation method of reinforced PVC paste resin |
| CN113004615A (en) * | 2021-03-21 | 2021-06-22 | 中裕软管科技股份有限公司 | Micro-foaming fireproof spiral water suction pipe |
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Application publication date: 20190215 |