CN106700495A - Heat-resistant TPU/PVC/CPVC composite extrusion coating for light conveyor belt and preparation method thereof - Google Patents
Heat-resistant TPU/PVC/CPVC composite extrusion coating for light conveyor belt and preparation method thereof Download PDFInfo
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- CN106700495A CN106700495A CN201611060555.0A CN201611060555A CN106700495A CN 106700495 A CN106700495 A CN 106700495A CN 201611060555 A CN201611060555 A CN 201611060555A CN 106700495 A CN106700495 A CN 106700495A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a heat-resistant thermoplastic polyurethane elastomer (TPU)/polyvinyl chloride (PVC)/chlorinated polyvinyl chloride (CPVC) composite extrusion coating for a light conveyor belt. The extrusion coating is prepared from TPU resin and PVC/CPVC extrusion aggregates according to the weight ratio and includes, by mass, 100 parts of TPU resin and 10-30 parts of PVC/CPVC extrusion aggregates. The TPU is polyester type TPU, the Shao A hardness of the TPU is 85-90, and a melting point is 160-170 DEG C. The TPU is subjected to vacuum drying at the temperature of 80-90 DEG C for 3-5 hours before usage. The PVC/CPVC extrusion aggregates are prepared from, by mass, 100 parts of PVC resin, 20-40 parts of CPVC resin, 20-60 parts of dioctyl phthalate, 4-6 parts of epoxy soybean oil, 4-8 parts of calcium and zinc composite thermal stabilizer, 5-10 parts of heavy calcium carbonate, 0-1 part of PE wax and 0-1 parts of antioxidant 1010. The PVC and CPVC molecules in the composite extrusion coating has strong binding force, blend compatibility is promoted, heat resistance of the TPU/PVC/CPVC composite extrusion coating for the light conveyor belt can be improved, and the service life is long.
Description
Technical field
The present invention relates to a kind of heat-resisting thermoplastic polyurethane of light-type conveyer belt（TPU）/ polyvinyl chloride（PVC）/ chlorination gathers
Vinyl chloride（CPVC）Compound extruded coating and preparation method thereof.
Background technology
Light-type conveyer belt is made up of single or multiple lift reinforcement and covering glue layer, with light weight, good stability of the dimension, opens
Power is high, color is lucid and lively, safety non-toxic the features such as, be widely used in all trades and professions, TPU has plastic processing performance and rubber concurrently
Physical mechanical characteristic.TPU have high intensity, high-modulus, high elongation rate and high resiliency, excellent wear-resisting, oil resistant, it is low temperature resistant,
The characteristic such as ageing-resistant, therefore the light-duty TPU conveyer belts with TPU resins as matrix, are usually used in the production flowing water of each industry of light industry
Line.But during the use of light-duty TPU conveyer belts, heat resistance is poor, for a long time using conveyer belt can be made aging, conveyer belt is caused
Sideslip, mechanical strength declines, and has a strong impact on service life, therefore improve the heat resistance of light-type conveyer belt TPU coating particularly
It is important.
The features such as PVC has fire-retardant, solvent resistant, heat-resisting, comprehensive mechanical property is good, its product is widely used in packing timber
The hard product such as the soft goods such as material, artificial leather, plastic products and tubing, profile shapes, sheet material, substantial amounts of polarity in PVC strands
Chlorine atom can form hydrogen bond with hydrogen atom in amino in TPU molecular structures, make have very strong adhesion therebetween, promote
Blend it is compatible, so as to improve the heat resistance of light-type conveyer belt TPU coating.
CPVC compares PVC, the increase of its chlorine atom content, polarity increase, intermolecular force increase, heat resistance and mechanics
Intensity increases, and CPVC is added in TPU/PVC two-phase systems, and polarity increases, and promotion system is compatible, so as to improve light-duty defeated
Send with the heat resistance with TPU coating.
The content of the invention
An object of the present invention is to provide a kind of light-type conveyer belt with heat-resisting TPU/PVC/CPVC compound extrudeds coating.
The second object of the present invention is to provide the preparation method of the heat-resisting TPU/PVC/CPVC compound extrudeds coating.
To reach above-mentioned purpose, the present invention is realized using following technical scheme：
A kind of light-type conveyer belt with heat-resisting TPU/PVC/CPVC compound extrudeds coating, the extrusion clad material by TPU resins and
PVC/CPVC extrusion pellets are mixed with according to weight ratio and form, including following component and mass parts：
TPU resins, 100 parts；
PVC/CPVC mixed powders, 10~30 parts；
Above-mentioned PVC/CPVC extrusion pellets include following component and mass parts：
Polyvinyl chloride resin, 100 parts；
CPVC resins, 20 parts~40 parts；
Dioctyl phthalate, 20 parts~60 parts；
Epoxidized soybean oil, 4 parts~6 parts；
Ca-Zn composite heat stabilizer, 4 parts~8 parts；
Powdered whiting, 5 parts~10 parts；
PE waxes, 0 part~1 part；
Antioxidant 1010,0 part~1 part；
Above-mentioned polyvinyl chloride resin is suspension method resin.
Above-mentioned TPU is polyester-type TPU, and its Shao A hardness is 85~90, and fusing point is 160~170 DEG C.
A kind of light-type conveyer belt of the invention preparation method of heat-resisting TPU/PVC/CPVC compound extrudeds coating, its characteristic
Be, the method comprise the following steps for：
(1) weighs polyvinyl chloride resin powder, CPVC resins, Ca-Zn composite heat stabilizer, phthalic acid respectively by above-mentioned weight portion
Dioctyl ester, epoxidized soybean oil, powdered whiting, it is successively that CPVC resins, Ca-Zn composite heat stabilizer, phthalic acid two is pungent
Ester, epoxidized soybean oil, powdered whiting are sequentially added in polyvinyl chloride resin powder, be put into mixer with the slow-speed of revolution be 50~100r/
Min is stirred and mixes to pasty state, then is mediated as 800~1000r/min with rotating speed high, and temperature gradually rises to 100~
110 DEG C, stop stirring, after stirring, be cooled to 40 DEG C, obtain PVC/ CPVC compounds；
(2) PVC/CPVC compounds are added to single screw extrusion machine and carry out melting extrusion by, and melting extrusion temperature is 140~
160 DEG C, Screw Extrusion rotating speed is 40~50r/min, that is, obtain PVC/CPVC extrusion pellets；
(3) dried TPU pellets and PVC/CPVC extrusion pellets are 10 according to mass ratio by：1~3 ratio mixing, plus
Entering to single screw extrusion machine carries out melting extrusion, and melting extrusion temperature is 155~165 DEG C, and Screw Extrusion rotating speed is 25~35r/
Min, that is, the TPU/PVC/CPVC compound extruded material for being melted；
(4) the TPU/PVC/CPVC compound extruded material of melting are covered in the surface of the fabric matrix of conveyer belt, conveying
Roll on to rolling mill roller, compound extruded material is fitted with the surface of fabric matrix, binding temperature is 150~170 DEG C, speed
It is 1~9m/min to spend, that is, obtain light-type conveyer belt with heat-resisting TPU/PVC/CPVC compound extrudeds coating.
Dried TPU described in above-mentioned steps (3) is 3~5 h of vacuum drying at 80~90 DEG C.With prior art
Compare, the present invention has advantages below：
(1) good heat resistance, contains polyvinyl chloride resin and CPVC in heat-resisting TPU/PVC/CPVC compound extrudeds coating of the invention
Resin, due in amino in a large amount of polarity chlorine atom energy in the strand of polyvinyl chloride resin and CPVC resins and TPU resinous molecular structures
Hydrogen atom forms hydrogen bond, makes have very strong adhesion therebetween, promotes the compatible of blend, so as to improve light-duty conveying
With the heat resistance with TPU/PVC/CPVC compound extruded coating；
(2) environmental protections, light-type conveyer belt TPU/PVC/CPVC compound extruded coating is prepared using the inventive method, and it is certainly
Dynamicization degree is high, processing cost is low, environmental pollution is small, quality is high；
(3) long service lifes, add antioxidant in preparation process of the invention, light-type conveyer belt is compound with TPU/PVC/CPVC
Extrusion coating has excellent heat resistanceheat resistant, ageing resistace；
(4) excellent machinery and processing characteristics, in preparation process of the invention, the PVC pellets of addition may be homogenously dispersed in TPU
In resin, the mechanical property of light-type conveyer belt TPU/PVC/CPVC compound extruded clad materials, at the same time, addition are improved
Lubricant can increase the mobility of material, improve the processing characteristics of extrusion coating.
Specific embodiment
Technical scheme is described in further detail with reference to specific embodiment.
Embodiment 1：
A kind of light-type conveyer belt TPU/PVC/CPVC compound extruded coating described in the present embodiment, the extrusion clad material by
TPU resins and PVC/CPVC extrusion pellets are 10 according to weight ratio：1 ratio is mixed with and forms, including following components and matter
Amount part：
TPU resins, 100 parts；
PVC/CPVC extrudes pellet, 10 parts；
Wherein, PVC/CPVC extrusions pellet includes following components and mass parts：
Polyvinyl chloride resin, 100 parts；
CPVC resins, 20 parts；
Dioctyl phthalate, 40 parts；
Epoxidized soybean oil, 6 parts；
Ca-Zn composite heat stabilizer, 4 parts；
Powdered whiting, 10 parts；
Its preparation process is as follows：
(1) weighs polyvinyl chloride resin powder, CPVC resins, Ca-Zn composite heat stabilizer, phthalic acid respectively by above-mentioned weight portion
Dioctyl ester, epoxidized soybean oil, powdered whiting, successively by the CPVC resins of 400g, the Ca-Zn composite heat stabilizer of 80g, 800g
Dioctyl phthalate, the epoxidized soybean oil of 120g, the powdered whiting of 200g sequentially add the polyvinyl chloride resin powder of 2kg
In, be put into mixer and be stirred as 50~100r/min with the slow-speed of revolution and mix to pasty state, then with rotating speed high be 800~1000r/
Min is mediated, and temperature gradually rises to 100~110 DEG C, stops stirring, after stirring, is cooled to 40 DEG C, obtains PVC/
CPVC compounds；
(2) PVC/CPVC compounds are added to single screw extrusion machine and carry out melting extrusion by, and melting extrusion temperature is 155~
175 DEG C, Screw Extrusion rotating speed is 40~50r/min, that is, obtain PVC/CPVC extrusion pellets.
(3) dried TPU pellets and PVC/CPVC extrusion pellets are 10 according to mass ratio by：1 ratio mixing, plus
Entering to single screw extrusion machine carries out melting extrusion, and melting extrusion temperature is 155~175 DEG C, and Screw Extrusion rotating speed is 25~35r/
Min, that is, the TPU/PVC/CPVC compound extruded material for being melted；
(4) the TPU/PVC/CPVC compound extruded material of melting are covered in the surface of the fabric matrix of conveyer belt, conveying
Roll on to rolling mill roller, compound extruded material is fitted with the surface of fabric matrix, binding temperature is 150~170 DEG C, speed
It is 1~9m/min to spend, that is, obtain light-type conveyer belt with heat-resisting TPU/PVC/CPVC compound extrudeds coating.
Performance is carried out with heat-resisting TPU/PVC/CPVC compound extrudeds coating to light-type conveyer belt obtained in above-described embodiment 1
Detection, testing result is shown in Table 1.
Embodiment 2：
A kind of light-type conveyer belt TPU/PVC/CPVC compound extruded coating described in the present embodiment, the extrusion clad material by
TPU resins and PVC/CPVC extrusion pellets are 10 according to weight ratio：2 ratio is mixed with and forms, including following components and matter
Amount part：
TPU resins, 100 parts；
PVC/CPVC extrudes pellet, 20 parts；
Above-mentioned PVC/CPVC extrusion pellets include following components and mass parts：
Polyvinyl chloride resin, 100 parts；
CPVC resins, 30 parts；
Dioctyl phthalate, 40 parts；
Epoxidized soybean oil, 6 parts；
4 parts of Ca-Zn composite heat stabilizer；
Powdered whiting, 10 parts；
PE waxes, 1 part；
Light-type conveyer belt described in the present embodiment 2 preparation method and the phase of embodiment 1 of TPU/PVC/CPVC compound extruded coating
Together, light-type conveyer belt obtained in embodiment 2 carries out performance detection, detection knot with heat-resisting TPU/PVC/CPVC compound extrudeds coating
Fruit is shown in Table 1.
Embodiment 3：
A kind of light-type conveyer belt TPU/PVC/CPVC compound extruded coating described in the present embodiment 1, the extrusion clad material by
TPU resins and PVC/CPVC extrusion pellets are 10 according to weight ratio：3 ratio is mixed with and forms, including following components and matter
Amount part：
TPU resins, 100 parts；
PVC/CPVC extrudes pellet, 30 parts；
Above-mentioned PVC/CPVC extrusion pellets include following components and mass parts：
Polyvinyl chloride resin, 100 parts；
CPVC resins, 40 parts；
Dioctyl phthalate, 40 parts；
Epoxidized soybean oil, 6 parts；
Ca-Zn composite heat stabilizer, 4 parts；
Powdered whiting, 10 parts；
PE waxes, 1 part；
Antioxidant 1010,1 part；
Light-type conveyer belt described in the present embodiment 3 preparation method and embodiment 1 of TPU/PVC/CPVC compound extruded coating
Identical, light-type conveyer belt obtained in embodiment 3 carries out performance detection with heat-resisting TPU/PVC/CPVC compound extrudeds coating, detection
The results are shown in Table 1.
In order to detect light-type conveyer belt obtained in the embodiment of the present invention with heat-resisting TPU/PVC/CPVC compound extrudeds coating
Technique effect, the method progressive specified using GB/T 531.1-2008, GB/T 1040.3-2006, GB/T 3512-2001
Can detect, its testing result is shown in Table 1.
From table 1, coating is extruded with TPU compared to light-type conveyer belt, the light-type conveyer belt TPU/ prepared in each embodiment
PVC/CPVC compound extruded coating excellent in mechanical performance, it is small by hardness, tensile strength, elongation at break rate of change after heat ageing,
Can under 110 DEG C of high temperature long-term use, improve light-type conveyer belt heat resistance.
Claims (3)
1. the heat-resisting TPUE of a kind of light-type conveyer belt（TPU）/ polyvinyl chloride（PVC）/ chlorinated polyvinyl chloride second
Alkene（CPVC）Compound extruded coating, the extrusion clad material is by TPU resins and PVC/CPVC extrusion pellets according to weight than mixing
It is prepared from, it is characterised in that including following component and mass parts：
TPU resins, 100 parts；
PVC/CPVC extrudes pellet, 10~30 parts；
Above-mentioned TPU category polyester-type TPU, its Shao A hardness is 85~90, and fusing point is 160~170 DEG C；
Above-mentioned PVC/CPVC extrusion pellets include following component and mass parts：
Polyvinyl chloride resin, 100 parts；
CPVC resins, 20 parts~40 parts；
Dioctyl phthalate, 20 parts~60 parts；
Epoxidized soybean oil, 4 parts~6 parts；
Ca-Zn composite heat stabilizer, 4 parts~8 parts；
Powdered whiting, 5 parts~10 parts；
PE waxes, 0 part~1 part；
Antioxidant 1010,0 part~1 part；
Above-mentioned polyvinyl chloride resin is suspension method resin.
2. a kind of light-type conveyer belt according to claim 1 preparation side of heat-resisting TPU/PVC/CPVC compound extrudeds coating
Method, its characteristic is, the method comprise the following steps for：
It is pungent that polyvinyl chloride resin powder, CPVC resins, Ca-Zn composite heat stabilizer, phthalic acid two are weighed respectively by above-mentioned weight portion
Ester, epoxidized soybean oil, powdered whiting, successively by CPVC resins, Ca-Zn composite heat stabilizer, dioctyl phthalate, ring
Oxygen soybean oil, powdered whiting are sequentially added in polyvinyl chloride resin powder, and be put into mixer is carried out by 50~100r/min of the slow-speed of revolution
Stirring mixes to pasty state, then is mediated as 800~1000r/min with rotating speed high, when temperature gradually rises to 100~110 DEG C,
Stop stirring, be cooled to 40 DEG C, obtain PVC/ CPVC compounds；
PVC/CPVC compounds are added to single screw extrusion machine carries out melting extrusion, and melting extrusion temperature is 140~160 DEG C,
Screw Extrusion rotating speed is 40~50r/min, that is, obtain PVC/CPVC extrusion pellets；
It is 10 according to mass ratio by dried TPU pellets and PVC/CPVC extrusion pellets:1~3 ratio mixing, adds to list
Screw extruder carries out melting extrusion, and melting extrusion temperature is 155~175 DEG C, and Screw Extrusion rotating speed is set to 25~35r/min,
The TPU/PVC/CPVC compound extruded material for being melted；
The TPU/PVC/CPVC compound extruded material of melting are covered in the surface of the fabric matrix of conveyer belt, calendering is delivered to
Roll on machine roller, compound extruded material is fitted with the surface of fabric matrix, binding temperature is 150~170 DEG C, and speed is 1
~9m/min, that is, obtain light-type conveyer belt with heat-resisting TPU/PVC/CPVC compound extrudeds coating.
3. the preparation method of a kind of heat-resisting TPU/PVC/CPVC compound extrudeds coating used for conveyer belt according to claim 1,
Its characteristic is that the dried TPU described in above-mentioned steps (3) is 3~5h of vacuum drying at 80~90 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545402A (en) * | 2018-03-23 | 2018-09-18 | 上海米莜凯自动化装备有限公司 | A kind of high temperature resistant does not adhere to PVC conveyer belts and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108545402A (en) * | 2018-03-23 | 2018-09-18 | 上海米莜凯自动化装备有限公司 | A kind of high temperature resistant does not adhere to PVC conveyer belts and preparation method thereof |
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Application publication date: 20170524 |