CN109825007A - It is a kind of that PVC cable sheath material and its utility device and preparation method being made using SOPVC film feed back - Google Patents
It is a kind of that PVC cable sheath material and its utility device and preparation method being made using SOPVC film feed back Download PDFInfo
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- CN109825007A CN109825007A CN201910173991.6A CN201910173991A CN109825007A CN 109825007 A CN109825007 A CN 109825007A CN 201910173991 A CN201910173991 A CN 201910173991A CN 109825007 A CN109825007 A CN 109825007A
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- 239000000463 material Substances 0.000 title claims abstract description 129
- 238000002360 preparation method Methods 0.000 title abstract description 15
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 23
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- 239000000314 lubricant Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 238000000265 homogenisation Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
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- 230000006835 compression Effects 0.000 abstract 1
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- 229920005989 resin Polymers 0.000 description 10
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 6
- 238000007639 printing Methods 0.000 description 6
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- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
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- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to heavy chemicals technical fields, it provides and a kind of PVC cable sheath material and utility device and preparation method is made using SOPVC film feed back, in which: it includes SOPVC film feed back and with the compound calcium zinc stabilizer of insulation-grade, DOP or DOTP, the chlorinated paraffin containing chlorine 52%, diamyl phthalate or terephthalic acid (TPA) diamyl ester that SOPVC film feed back mass parts 100 are calculating standard that PVC cable sheath material, which is made, using SOPVC film feed back；1500 mesh calcined kaolins, 1500 mesh calcenes, polyethylene wax, stearic acid pentaerythritol ester, 1010 antioxidant, DLTDP antioxidant and the N330 carbon black that molecular weight is 2500 to 3000, it is combined by previous materials, implement to melt the complete manufacturing equipment that compression mixing-twin-screw homogenizing-single screw rod filtering-single screw rod is granulated and its specific process technology to match, it solves the technical issues of PVC cable sheath material is made in SOPVC film feed back PVC cable sheath material, has reached the effect for making full use of feed back and reducing material cost.
Description
Technical field
The present invention relates to heavy chemicals technical field, especially provides and a kind of PVC cable protection is made using SOPVC film feed back
Jacking and its use equipment and preparation method.
Background technique
In recent years, Chinese beverage annual output shows the trend increased year by year, the annual growth rate for keeping 10-20%.Drink
The thermal contractive label packaging of material is widely used in beverage syrup industry.Thermal contractive label increases to blown drink bottles or container
It is eye-catching, improve the advantages of quality and 360 ° of decorations.Thermal contractive label can tightly be fitted in the bottle body of any irregular contour
On, especially when fitting is expanded to bottleneck, bottle cap or valve protection cap, label can significantly modify container characteristics, increase vision beauty
Sense.UV absorbent is added such as in the formula of heat shrink label, can also expand the pot-life of packing article.It is marked due to being heat-shrinked
Label have the advantages that common label is incomparable, obtain rapid growth with the thermal contractive label that this highlights brand names image,
Annual growth is maintained at 15% or so, and more than the annual growth in common label market 5% or so, development potentiality is huge, becomes mark
Sign the maximum bright spot of printing industry.
The type of thermal contractive label is varied, for making the membrane material type of label also very abundant.PVC material system
At the thermal contractive label transparency is good, shrinking percentage is higher, and its cost is relatively low, tensile strength is big, and temperature shrinkage range is big,
It is of less demanding to heat source, it is main to process the combination that heat source is hot-air, infrared ray or both.Currently, the maximum of PVC heat shrink films
Using state --- China, beverage market occupation rate at home is up to 80% or more.But the PVC shrink film feature of environmental protection is poor, in state
Outside, Germany just proposes the regulation that disabling PVC makees packaging material, in recent years, PVC packing timber early in phase late 1990s
Material has gradually faded out in entire European market, and the U.S., Japan are also gradually with OPS instead of PVC material.China Taiwan from
Increase the environmentally friendly tax of PVC material 30% from January 1st, 2016 to PVC film enterprise.The appearance of these restrictions is primarily due to
PVC film is difficult to recycle, and the toxic gases such as dioxin are generated when burning, are unfavorable for environmental protection.
China SOPVC (simple tension PVC) thermal contractive label film serves primarily in beverage industry, and 2017, NongFuShanQuan,
Wahaha, Chef Kang, uniformly, the heat shrinkable printing film consumed of silver-colored aigret, Huiyuan, Dary Yuan Deng brand beverage enterprise be expected to be 27
Ten thousand tons, the occupation rate of market of PVC film is still above 80%.The printing of Current Domestic thermal shrink film label is all using large size
Automatic high-speed multilayer covers printing equipment more, and the yield rate of label film about 75% has nearly 25% leftover pieces and unqualified film
Material is eliminated from track.In PVC film manufacturing enterprise, also having about 10-12% to discard film can not recycling film.Two
Person is added domestic about ten thousand tons of 2-3 of SOPVC film waste.Therefore, for the present inventor by development test, it is a kind of right to develop
SOPVC discards the technical solution that coating materials gives sufficiently effective recycling, and the program is expected to thoroughly solve country PVC thermal contraction
Environmental protection, health and the PVC thermal contractive label film of label film continue the problem of development.
Summary of the invention
In order to solve the above technical problems, the main purpose of the present invention is to provide a kind of returned using SOPVC film, and PVC is made
Cable jacket material.
To reach above-mentioned purpose, the technical solution that the present invention applies is made of: providing a kind of utilization SOPVC film feed back
PVC cable sheath material, in which: the PVC cable sheath material include SOPVC film feed back and by SOPVC film feed back mass parts 100 be in terms of
The compound calcium zinc stabilizer of the insulation-grade of calculation standard, DOP or DOTP, the chlorinated paraffin containing chlorine 52%, phthalic acid diamyl
Ester or terephthalic acid (TPA) diamyl ester；1500 mesh calcined kaolins, 1500 mesh calcenes, molecular weight be 2500 to
3000 polyethylene wax, stearic acid pentaerythritol ester, 1010 antioxidant, DLTDP antioxidant and N330 carbon black.
In the present embodiment preferably: the compound calcium zinc stabilizer of insulation-grade is that 3.0-3.4, DOP or DOTP are 22-26；
It is 13-15 containing 52% chlorinated paraffin of chlorine；Diamyl phthalate or terephthalic acid (TPA) diamyl ester are 7-9；The calcining of 1500 mesh
Kaolin is 7-9；1500 mesh calcene 30-34；The polyethylene wax that molecular weight is 2500 to 3000 is 0.4-0.6；
Stearic acid pentaerythritol ester is 0.4-0.6；1010 antioxidant are 0.25-0.30；DLTDP antioxidant is 0.25-0.30 and charcoal
N330 black is 1.2-1.5 parts.
In order to solve the above technical problems, being made the main purpose of the present invention is to provide a kind of using SOPVC film feed back
The utility device of PVC cable sheath material.
To reach above-mentioned purpose, the technical solution that the present invention applies is: providing a kind of return using SOPVC film and PVC is made
The utility device of cable jacket material, including mixer, feed system, double screw extruder and single screw extrusion machine, in which: mixing
Machine be Double-directional rotary rubber internal mixer and have mixing chamber, rotor and overturning dump bucket, mixing chamber have import and export and oil plus
Heat and water-cooling structure；Rotor is hollow structure, is located in mixing chamber, and has oily heating structure, and the outer of rotor is with 45 degree
Angle is double stupefied；It overturns dump bucket and accepts the outlet of mixing chamber；Feed system accepts overturning dump bucket and including boring twin-screw；Double screw extruder
Feed system is accepted, the steering of twin-screw is identical, and when assembly, two screw rods differ 180 ° of phase angles；Single screw extrusion machine packet
The first, second single screw extrusion machine in tandem is included, the first single screw extrusion machine accepts double screw extruder, the second single screw rod
Extruder accepts the first single screw extrusion machine.
In the present embodiment preferably: the first single screw extrusion machine uses air-cooled electric heating mode, machine before screw slenderness ratio
For 9:1；Second single screw extrusion machine uses water cooling electric heating mode.Machine is 13:1 before its screw slenderness ratio.
In the present embodiment preferably: the first, second single screw extrusion machine respectively includes machine barrel, head and filter screen, machine barrel
Discharge end is equipped with filter screen, in which: the first single screw extrusion machine filter screen is 80 mesh；The filter screen of second single screw extrusion machine
For 140 mesh and the second single screw extrusion machine head is collar plate shape earnestly air-cooled head, and earnestly air-cooled head has two sections to collar plate shape
Air blast cooling structure.
In the present embodiment preferably: further including reciprocating sieve, reciprocating sieve accepts collar plate shape earnestly air-cooled head.
In order to solve the above technical problems, the main purpose of the present invention is to provide a kind of returned using SOPVC film, and PVC is made
The preparation method of cable jacket material.
To reach above-mentioned purpose, the technical solution that the present invention applies is: providing a kind of return using SOPVC film and PVC is made
The preparation method of cable jacket material sequentially includes melting mixing, cone Dual-conveying tall, twin-screw homogenizing, single screw rod melt filteration and list
The air-cooled granulation step of screw rod, in which:
Melting mixing step: banbury rotating speed is first set as 60 revs/min, mixer temperature is made to be raised to 148-150 DEG C of perseverance
Warm 30min, then be added to mixer be broken into 150 kilograms of the SOPVC film feed back of fragment shape and not comprising SOPVC film in three times
Other materials in above-mentioned PVC cable sheath material including feed back carry out melting mixing and form (partly) plasticizing shape material, (partly)
Plastifying material carries out twin-screw homogenizing through cone Dual-conveying tall to double screw extruder；
Twin-screw homogenization step: the barrel temperature of double screw extruder is set in 150-155 DEG C, screw speed 90-100
Rev/min, half plastifying material after twin-screw extrusion, in high temperature and cut by the SOPVC film feed back after making stabilizer, rate accelerating material and plasticizing
The lower further melting homogenizing of the effect of cutting；
Single screw rod melt filteration step: single screw rod melt filteration is divided into the second of first segment filtering and undertaking first segment filtering
Section filtering, first segment are filtered into the filter structure that the first single screw extrusion machine is equipped with, and second segment is filtered into the second single screw rod extrusion
The filter structure that machine is equipped with, the first single screw extrusion machine and the second single screw extrusion machine are arranged in the form of front and back is accepted, resinifying agent
After material homogenizing in first, second section of filtering, by stabilizer, plasticizer, lubricant, inorganic filler, antioxidant and carbon black group
The melting transformation divided, makes SOPVC coating materials be changed into uniform cable jacket material melt.
In the present embodiment preferably: be to the method that the SOPVC film feed back for being broken into fragment shape is added in mixer in three times:
The inventory of first time is 120 kg, and kettle temperature is made to go back up to 155 DEG C after 6 minutes, and is compacted film feed back in plasticizing shape；
Second of throwing, 30 kilograms of SOPVC film feed backs, while 69 kilograms of plasticizer and 5 kilograms of calcium zinc stabilizer are put into, after 5 points
Zhong Hou, the load weighted lubricant of investment third time, inorganic filler and antioxidant, and discharge after mixing 6 minutes, material is at this time
It is plasticized uniform rubbery state.
In the present embodiment preferably: cone Dual-conveying tall is two taper feed screws, is set in feeding trough, and two conical screws
Turn to it is identical, when assembly, 180 ° of phase angles of difference of two conical screws, in which: the diameter at butt end of two taper feed screws
360mm, draw ratio 9:1；Feeding trough has controllable temperature facility, heating power having a size of 2m × 2m × 1.6m, four wall of length and width
8KW。
In the present embodiment preferably: plastifying material, through 80 mesh filter screens, filters SOPVC after the first single screw extrusion machine
Coarse granule impurity in coating materials；First 150-160 DEG C of set temperature of single screw rod barrel, 36-40 revs/min of extrusion screw rod revolving speed；The
Two sections are filtered into extruding pelletization and further filter the crystalline substance in SOPVC coating materials through 140 mesh filter screens after plastifying material forms particle
Point and smaller impurity particle.
Compared with prior art, the present invention its beneficial effect:
First is that PVC sheath material meets GB8815-2008, the index request of H70 type PVC sheath material through detection；
Second is that making full use of the manufacture of (SOPVC label film yield is ten thousand tons/year of 15-20) SOPVC label film and printing
Corner feed back is formed in journey and reaches ten thousand tons/year of 2.0-2.5, will be huge if to these corners, feed back is not recycled
Environmental disaster.
Third is that the present invention goes out to prepare H70 type PVC sheath material for the property the characteristic study of SOPVC label film corner feed back
Formula and apparatus and process route, the PVC cable sheath material performance of H70 type PVC sheath material and commerical grade the polyvinyl chloride resin production of production
It is identical.The high added value comprehensive utilization for realizing SOPVC label film corner feed back, had both accomplished that resource made full use of, also effectively
Reduce material cost.
Detailed description of the invention
Fig. 1 is the flow diagram for preparing PVC cable sheath material.
Specific embodiment
Although the present invention can easily show as various forms of embodiments, listed in attached drawing or subordinate list and
What be will be explained in this specification is only some of which specific embodiment, while being understandable that this specification should regard
To be the exemplary illustrated of the principle of the invention, and be not intended to limit the invention to it is illustrated herein as.
As a result, a feature pointed in this specification by illustrate one embodiment of the present of invention one of them
Feature, rather than imply that each embodiment of the invention must have illustrated feature.Further it is to be noted that be this explanation
Book describes many features.Although certain features can be combined to list possible system design, these features
It can also be used for other combinations that explanation is not known.As a result, unless otherwise indicated, illustrated combination is not intended to limit.
Below in conjunction with the attached drawing and subordinate list of this specification, further detailed explain is given to presently preferred embodiments of the present invention
It states.
Referring to Fig. 1, providing a kind of method using SOPVC film feed back preparation PVC cable sheath material, this method includes
Material component and technique, in which:
Material component includes: with SOPVC film feed back mass parts 100 for calculating standard, mixing: compound calcium zinc stabilizer
(insulation-grade) is 3.0-3.4；DOP or DOTP is 22-26；Chlorinated paraffin (containing chlorine 52%) is 13-15；Phthalic acid diamyl
Ester or terephthalic acid (TPA) diamyl ester are 7-9；1500 mesh calcined kaolins are 7-9；1500 mesh calcene 30-34；
The polyethylene wax that molecular weight is 2500 to 3000 is 0.4-0.6 parts；Stearic acid pentaerythritol ester is 0.4-0.6 parts；Antioxidant
1010 be 0.25-0.30 parts；Antioxidant DLTDP is 0.25-0.30 and carbon black N330 is 1.2-1.5 parts.
Preparation process includes: to be processed using mixer, feed system, double screw extruder and single screw extrusion machine, in which:
The rubber internal mixer that inverts that mixer is 200 liters of volume, the intracavitary portion of the mixing of rubber internal mixer are oil heating, water
Cooling, closed-smelting machine rotor is using the double stupefied rotors in 45 degree of angles, and rotor is the logical oil heating of hollow structure, and mixer discharge way is 90 degree
Angle overturns discharging；
Feed system includes bi-conical feed screw rod, the diameter at butt end 360mm of bi-conical feed screw rod, draw ratio 9:1；Feeding
Slot has controllable temperature facility, heating power 8KW having a size of 2m × 2m × 1.6m, four wall of length and width；
Double screw extruder is the dedicated co-rotating twin screw extruder of PVC, and screw-rod structure is full engagement type, and screw rod is straight
Diameter 72mm, draw ratio 36:1, screw flight element combination form are divided into feeding section, melt zone, fluxing zone, exhaust section and metering
Section, in which: the screw combinations parameter of feeding section from left to right are as follows: 44/, 72/72,72/72,72/72,72/72,48/48,72/
72,64/64,56/56；The screw combinations parameter of melt zone from left to right are as follows: 44/44,44/44,30 °/7/72,45 °/5/56,
45°/5/56,60°/4/44,72/72,64/64/,64/64,56/56；Fluxing zone its screw combinations parameter from left to right are as follows: 44/
44、44/44、45°/5/56、45°/5/56、60°/4/44、45°/5/56、72/72、64/64、64/64、56/56、44/44、
44/44,45°/5/56,45°/5/56,45°/5/56,90°/5/56,28/28ZME；The screw combinations ginseng of exhaust section from left to right
Number are as follows: 96/96,72/72,64/64,64/64,56/56；Metering section its screw combinations parameter from left to right are as follows: 44/44,44/
44,44/44,44/44,44/44.The steering of two screw rods is identical, and when assembly, two screw rods differ 180 ° of phase angles；
Single screw extrusion machine is double rank arranged type (i.e. two) single screw extrusion machines, and the screw diameter of single screw extrusion machine is equal
For 250mm, in which: machine is 9:1 before the screw slenderness ratio of (preceding) first single screw extrusion machine, using air-cooled electric heating mode；
Machine is 13:1 before the screw slenderness ratio of (rear) second single screw extrusion machine, using water cooling electric heating mode.Single screw extrusion machine packet
Machine barrel, head are included, machine barrel discharge end has filter screen quick replacement device, and material is expressed into the filter of 80 mesh by the first single screw rod
The second single screw extrusion machine is directly inputted after net；Material passes through collar plate shape heat after the filtering of 140 mesh of the second single screw extrusion machine again
Wind cutting cold head is granulated, and is put in storage through two sections of air blast are cooling into reciprocating sieve sieving.
Please continue to refer to Fig. 1, in the present invention, preparation process further includes mixing, twin-screw homogenizing and single screw rod melting
Filtering, in which:
Melting mixing: the SOPVC film feed back of lamination or web-like enters bag through the broken shape that fragmentates of crusher and weighs, mixer
After temperature is raised to 148-150 DEG C of constant temperature 30min or more, it is public that fragment shape SOPVC film feed back 150 is added into mixer in three times
Jin and other auxiliary materials, banbury rotating speed are 60 revs/min.First time inventory is 120 kg, and starting compresses floating weight, after 6 minutes
Kettle temperature goes back up to 155 DEG C, and coating materials is compacted in plastifying state but still has a small amount of sheet coating materials, opens floating weight, second of throwing 30
Kilogram SOPVC coating materials and 69 kilograms of plasticizer and 5 kilograms of calcium zinc stabilizer, time interval after five minutes, matches by third time investment
The load weighted lubricant in side, inorganic filler and antioxidant add after material compresses floating weight and continue to discharge for mixing 6 minutes.At this time
Material is designed in uniform rubbery state, material formula design and the structure of mixer is plasticized, it is ensured that mixer inner wall and rotor
Self-cleaning it is good, salvage stores on kettle inner wall and rotor without adherency exists；
Twin-screw extrusion melting homogenizing (i.e. " twin-screw homogenizing "): half plastifying material being discharged from mixer is through dedicated track
Vehicle transports in bi-conical feed storehouse, opens bi-conical feed machine, adjusts feeding revolving speed, it is special that rubber-like material is evenly supplied to PVC
With further fusion plastification is carried out in Heterodromy double-screw extruder, extruder barrel temperature is set in 150-155 DEG C, spiral shell
90-100 revs/min of bar revolving speed.The purpose of twin-screw extrusion be eliminate mixing in material because plasticizer absorption is insufficient and remaining
The structures such as " gel piece " and " artificial fish eye ", make components such as stabilizer, rate accelerating material in formula etc. and the SOPVC coating materials after plasticizing into
One step melts homogenizing under high temperature and shear action；
Single screw rod melt filteration is divided into first, second section of filtering (referred to as " first, second section of filtering ") of single screw rod melting,
Wherein: after the melting transformation by stabilizer, plasticizer, lubricant, inorganic filler, antioxidant and carbon black component, SOPVC coating materials
It is changed into uniform cable jacket material melt.The cable jacket material melt is drained into the first single screw rod extrusion from twin-screw barrel
In machine, through 80 mesh filter screen of head, the coarse granule impurity in SOPVC coating materials is filtered.First single screw rod barrel set temperature 150-
160 DEG C, 36-40 revs/min of extrusion screw rod revolving speed, the motor-driven extruder electric current 38-42A of 40KW, filter screen is 55-60 minutes every
Automatic replacement is primary；
Extruding pelletization: second segment filtering accepts the filtered melt of the first single screw extrusion machine and enters second segment single screw rod
Extruder further filters crystal point and smaller impurity particle in SOPVC coating materials through 140 mesh filter screen of head, by air-cooled
Weighing and bagging after fervent head is granulated.150-160 DEG C of set temperature of the single screw rod barrel, 130 DEG C of die temperature；Extrusion screw rod turns
Fast 40-45 revs/min, the extruder electric current of 60KW electric motor starting shows 48-52A, and automatic replacement in filter screen about every 2 hours is primary.
The H70 type PVC sheath material prepared by proprietary formula of the invention, equipment integrated mode and process route and technical parameter is through detecting
Meet GB8815-2008, the index request of H70 type PVC sheath material.
In the present invention, SOPVC label film corner feed back preparation H70 cable jacket material PVC cable sheath material such as table 1 is (each
Embodiment component) and table 2 (each embodiment mass parts), in which: SOPVC label film corner feed back is directly recovered from label printing house
Or SOPVC label film blown film factory (being polluted without rainwater and dust), it is broken into the fragment shape of coin-size through crusher, weighs dress
Bag, 12 kilograms every bag.
1 Example formulations of table (i.e. " component "):
| Raw material (designation Model) | Formula 1 | Formula 2 | Formula 3 | Formula 4 | Formula 5 | Formula 6 |
| The PVC degree of polymerization 1000 | 100 | 0 | 0 | 0 | 0 | 0 |
| The PVC degree of polymerization 1300 | 0 | 100 | 0 | 0 | 0 | 0 |
| SOPVC film feed back | 0 | 0 | 100 | 100 | 100 | 100 |
| Compound calcium zinc stabilizer | 5.0 | 5.0 | 3.3 | 3.2 | 3.1 | 3.1 |
| DOP | 40 | 42 | 24 | 25 | 23 | 30 |
| Chlorinated paraffin | 14 | 13 | 14 | 13 | 14 | 15 |
| Diamyl phthalate | 0 | 0 | 8 | 0 | 8 | 0 |
| Dibutyl phthalate | 0 | 0 | 0 | 9 | 0 | 0 |
| Calcined kaolin | 0 | 0 | 8 | 8 | 8 | 8 |
| 500 mesh calcenes | 40 | 40 | 32 | 32 | 32 | 32 |
| Antioxidant 1010 | 0 | 0 | 0.25 | 0.25 | 0 | 0.25 |
| Antioxidant KY-405 | 0 | 0 | 0.25 | 0.25 | 0 | 0.25 |
| 2500 polyethylene wax of molecular weight | 0.8 | 0.8 | 0.5 | 0.5 | 0.5 | 0.5 |
| Stearic acid pentaerythritol ester | 0.7 | 0.7 | 0.4 | 0.4 | 0.4 | 0.4 |
| Carbon black N330 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
2 embodiment test result of table (i.e. " mass parts "):
In table 1 and table 2, embodiment 1 and embodiment 2 are the tests using polyvinyl chloride resin original powder as the cable material formula of substrate
The result shows that embodiment 1,2 has all reached GB/8815-2008, the index request of H70 cable jacket material.Since embodiment 2 uses
1300 type resins, under identical Shao A hardness, the tensile strength of embodiment 2 about 2Mpa high compared with embodiment 1；In embodiment 3,
The formula index that CABLE MATERIALS tensile property index has been more than S-1000 resin is manufactured by substrate of SOPVC film feed back, closer to S-
The tensile strength index of 1300 resins, this is because the macromolecules such as MBS, ACR containing 6-8% or so increase in SOPVC film feed back
Strong material has played the effect of reinforcing agent in cable formula.As long as the data of embodiment 3 illustrate that SOPVC film feed back utilizes
It is proper, high-grade PVC cable material product can be prepared completely.
It is proper that the various embodiments described above show that the technical solution for preparing PVC cable material using SOPVC film feed back must be formulated,
If it is improper to be formulated: the crystal point that (one) will cause cable appearance is excessive, and the cable appearance of pure polyvinyl chloride resin is not achieved；(2) exist
In the plasticizing excessively of SOPVC film feed back, it will cause PVC molecule and occur lightly crosslinked, so (use 40 times of amplification sem observations) can see
For cable surface there are waveform flow liner, the glossiness of the purer polyvinyl chloride resin of cable appearance is relatively low out.
It being compared with embodiment 3 and embodiment 6, embodiment 6 is plasticized SOPVC film feed back using traditional DOP and chlorinated paraffin,
Always there is the crystal point particle for being difficult to be plasticized in cable appearance, and directly affects cable presentation quality, when embodiment 3 formula in be added 8
After the diamyl phthalate of part or so replaces the DOP of same amount, since the molecular weight of diamyl phthalate is smaller,
Its 80 DEG C plasticizer absorption time be 3 points 06 second, and DOP 80 DEG C the plasticizer absorption time be 6 points 52 seconds, O-phthalic
Sour diamyl ester can penetrate into inside SOPVC membrane molecule compared with the faster speed of DOP, make difficulty under screw rod heat and shearing force
It is eliminated with the PVC crystal point for being plasticized, dispersing, presentation quality identical with pure polyvinyl chloride resin CABLE MATERIALS is obtained with this.From embodiment 4
Testing result is seen, after the diamyl phthalate in formula is replaced by the smaller dibutyl phthalate of molecular weight, though
Right dibutyl phthalate also can be inside rapid osmotic to SOPVC membrane molecule, and the PVC crystal point of cohesion, improvement line are eliminated in dispersion
The presentation quality of cable, but mass loss index can decreased significantly after the PVC cable material 100 DEG C × 168h aging prepared.
It is compared with embodiment 3 and embodiment 5, supression should be suitably added in SOPVC film feed back preparation PVC cable material formula
The antioxidant system of PVC high-temperature oxydation crosslinking.When manufacturing PVC cable material using pure PVC resin powder, since the equipment used is double spiral shell
Bar extruder or Dual inoculation, PVC processing in be heated time it is relatively short, formula design in need not use antioxygen
Agent, but during using SOPVC film feed back preparation PVC cable material, to pass through mixing, twin-screw extrusion, double rank single screw rods are squeezed
Complicated technology out, SOPVC coating materials heated time is in 35-38min or so, it is necessary to the oxygen that effective antioxidant restrains PVC molecule be added
Change the deterioration that degradation reaction causes cable presentation quality.When being free of antioxidant in the formula of embodiment 5, the CABLE MATERIALS extrusion line of production
It is found after cable, appearance has the slightly cross-linked caused flow liner phenomenon of PVC, causes the presentation quality of cable unqualified.When in embodiment 3
In formula be added phenolic antioxidant 1010 and amine antioxidants KY-405 it is compound and use after, the cable presentation quality of extrusion reaches
The cable appearance of pure PVC resin powder production is horizontal.Using the capillary melt index apparatus of 30:1, in 170 DEG C, 5 kilograms of counterweight items
It under part, detects its melt body flow rate and finds out, embodiment 3 is 7.81g/10min, and embodiment 5 is 0.46g/10min, this knot
Fruit further illustrates that not adding 5 fluidity of molten of embodiment of antioxidant is decreased obviously, PVC system have occurred micro- cross-linking reaction from
And influence the presentation quality of CABLE MATERIALS.
It is found in SOPVC label film of the present invention corner feed back preparation H70 cable jacket material development process, in SOPVC label
In membrane edge angular convolution material mixing process, the control of the structure and heating method and mixing time of mixer is very crucial.Mixer
Wall, angle design between rotor and kettle cavity want round and smooth, cannot there is dead angle, and whole material discharges will ensure nothing after a mixing
Glutinous wall material accumulates, and preventing viscous wall material to be brought into the second kettle influences product quality.The cavity and rotor of mixer use admittance hot oil
Mode heat, be for prevent electric heating cause mixing chamber have overheat supercooling region and there is PVC wall sticking phenomenon.Experiment discovery is close
The temperature control of mill feeds in three times at 154-155 DEG C, and stabilizer and plasticizer are opening kettle addition, entire banbury cycle for the second time
Control at 17-18 minutes be banburying process optimum condition.The temperature control of mixer is excessively high and mixing time extension can all make
It is excessive at material plasticizing, cause mixing cavity buildup and the CABLE MATERIALS of production to there is crosslinking tendency.Banbury cycle is controlled in 17-18
Minute be also beneficial to lower section twin-screw homogenization process be connected and the matching of twin-screw extrusion yield.
It is found in SOPVC label film of the present invention corner feed back preparation H70 cable jacket material development process, double screw extruder
Screw thread composite structure and temperature controlling range be SOPVC coating materials obtain further melting homogenizing committed step.Using this hair
Bright " middle shearing three combination " threaded block integrated mode simultaneously matches 150-155 DEG C of processing temperature, can make SOPVC film cable formula
PVC cable sheath material improves plasticizing quality during being changed into H70 cable jacket material, and H70 cable jacket material obtains preferably
One plasticizing.Test finds that helicitic texture is using " combination of high shear three " and " middle four combination of shearing " mould in twin-screw extrusion process
Formula or extruder temperature setting are higher, and the melt body flow rate of H70 cable jacket material can all be caused to decline, cable surface
Glossiness decline, product quality decline.And helicitic texture is using the low sheraing mode or extruder temperature of " middle two combination of shearing "
Degree setting is relatively low, it is found that the cable surface " crystal point " for the H70 cable jacket material of production squeezes out again can be on the high side, leads to cable products
Presentation quality decline.
It is found in SOPVC label film of the present invention corner feed back preparation H70 cable jacket material development process, from twin-screw extrusion
What machine squeezed out, the H70 cable jacket material as made of the transformation of SOPVC film need to filter in SOPVC coating materials by two sections of filter progress
Impurity and PVC " crystal point " structure are key problem in technology of the invention.The screw diameter of two single screw extrusion machines is 250mm, spiral shell
Machine is 9:1 before bar draw ratio, and using air-cooled electric heating mode, rear machine is 13:1, using water cooling electric heating mode, this combination die
Formula is to sum up in the continuous failure by production practices, and the Screw Parameters of two single screw extrusion machines first have to meet crowded
The demand of yield.SOPVC label coating materials after filtering fusion plastification using two single screw extrusion machines is by SOPVC label film
Material feature special procures what process conditions determined with manufacture H70 cable jacket material.80 mesh filter screen coarse filtration of machine before single screw extrusion machine
It is in order to filter the impurity being artificially introduced in the feed back of SOPVC label film corner, once in certain experiment discovery, preceding 80 mesh filter screen of machine
The impurity filtered out is extremely more, abnormal, must replace primary filter screen within every 20 minutes, and strainer impurity is taken out through infrared spectroscopy point
Analysis discovery, the main component of impurity are PET material；It links up and learns with SOPVC label Workshop Production personnel, be originally shop worker
Predetermined operation is not pressed, it is not intended to the PET label film feed back of another of same workshop production line is mixed into batch SOPVC label film
In material, since PET label film feed back is not melted under 150-160 DEG C of processing temperature, all filtered by 80 mesh of machine before single screw rod
Net filters out, and fall in such case, just will appear serious network blocking only with primary filter screen filtering SOPVC label coating materials mode
Phenomenon and can not produce.Machine mainly filters smaller impurity and micro- in SOPVC label coating materials using 140 mesh filter screens after single screw rod
Amount is difficult to the PVC " crystal point " being plasticized, it is ensured that and free from foreign meter in H70 CABLE MATERIALS and influence cable appearance difficulty is plasticized " crystal point " ingredient,
The wire and cable of extrusion reaches identical as the wire and cable presentation quality of pure PVC powder production.
Claims (11)
1. a kind of be made PVC cable sheath material using SOPVC film feed back, it is characterised in that: PVC cable sheath material includes SOPVC
Film feed back and with SOPVC film feed back mass parts 100 be calculating standard the compound calcium zinc stabilizer of insulation-grade, DOP or DOTP,
Chlorinated paraffin, diamyl phthalate or terephthalic acid (TPA) diamyl ester containing chlorine 52%；1500 mesh calcined kaolins, 1500
Mesh calcene, molecular weight be 2500 to 3000 polyethylene wax, stearic acid pentaerythritol ester, 1010 antioxidant,
DLTDP antioxidant and N330 carbon black.
2. PVC cable sheath material as described in claim 1, it is characterised in that: the compound calcium zinc stabilizer of insulation-grade is 3.0-
3.4, DOP or DOTP is 22-26；It is 13-15 containing 52% chlorinated paraffin of chlorine；Diamyl phthalate or terephthalic acid (TPA)
Diamyl ester is 7-9；1500 mesh calcined kaolins are 7-9；1500 mesh calcene 30-34；Molecular weight be 2500 to
3000 polyethylene wax is 0.4-0.6；Stearic acid pentaerythritol ester is 0.4-0.6；1010 antioxidant are 0.25-0.30；DLTDP
Antioxidant be 0.25-0.30 and charcoal N330 it is black be 1.2-1.5 parts.
3. a kind of equipment of practical PVC cable sheath material as claimed in claim 2, including mixer, feed system, twin-screw squeeze
Machine and single screw extrusion machine out, it is characterised in that: mixer be Double-directional rotary rubber internal mixer and have mixing chamber, rotor and
Dump bucket is overturn, mixing chamber has import and export and oil heating and water-cooling structure；Rotor is hollow structure, is located in mixing chamber,
And there is oily heating structure, to be with 45 degree of angles double stupefied for rotor outer；It overturns dump bucket and accepts the outlet of mixing chamber；Feed system undertaking is turned over
Unloading bucket and including bi-conical feed screw rod；Double screw extruder accepts feed system, and the steering of twin-screw is identical, when assembly,
Two screw rods differ 180 ° of phase angles；Single screw extrusion machine includes the first, second single screw extrusion machine in tandem, and first is single
Screw extruder accepts double screw extruder, and the second single screw extrusion machine accepts the first single screw extrusion machine.
4. double screw extruder as claimed in claim 3, it is characterised in that: screw-rod structure is full engagement type, screw diameter
72mm, draw ratio 36:1, screw flight element combination form are as follows: feeding section its screw combinations from left to right are as follows: 44/, 72/
72,72/72,72/72,72/72,48/48,72/72,64/64,56/56；The melt zone its screw combinations from left to right are as follows:
44/44,44/44,30°/7/72,45°/5/56,45°/5/56,60°/4/44,72/72,64/64/,64/64,56/56；It is described
Fluxing zone its screw combinations from left to right are as follows: 44/44,44/44,45 °/5/56,45 °/5/56,60 °/4/44,45 °/5/56,
72/72、64/64、64/64、56/56、44/44、44/44、45°/5/56、45°/5/56、45°/5/56、90°/5/56、28/28
ZME；The exhaust section its screw combinations from left to right are as follows: 96/96,72/72,64/64,64/64,56/56；The metering section by
Its screw combinations of from left to right are as follows: 44/44,44/44,44/44,44/44,44/44.
5. equipment as claimed in claim 4, it is characterised in that: the first single screw extrusion machine uses air-cooled electric heating mode,
Machine is 9:1 before screw slenderness ratio；Second single screw extrusion machine uses water cooling electric heating mode.Machine is 13 before its screw slenderness ratio:
1。
6. equipment as claimed in claim 5, it is characterised in that: the first, second single screw extrusion machine respectively includes machine barrel, head
And filter screen, machine barrel discharge end are equipped with filter screen, in which: the first single screw extrusion machine filter screen is 80 mesh；Second single screw rod
The filter screen of extruder is 140 mesh and the second single screw extrusion machine head is collar plate shape earnestly air-cooled head, the fervent wind of collar plate shape
Cold head has two sections of air blast cooling structures.
7. equipment as claimed in claim 6, it is characterised in that: further include reciprocating sieve, it is earnestly air-cooled that reciprocating sieve accepts collar plate shape
Head.
8. a kind of method for preparing PVC cable sheath material as claimed in claim 2 sequentially includes melting mixing, bores Dual-conveying tall, is double
Screw rod homogenizing, single screw rod melt filteration and the air-cooled granulation step of single screw rod, it is characterised in that:
Melting mixing step: banbury rotating speed is first set as 60 revs/min, mixer temperature is made to be raised to 148-150 DEG C of constant temperature
30min, then be added to be broken into 150 kilograms of the SOPVC film feed back of fragment shape and do not include SOPVC film to mixer in three times and return
Other materials in above-mentioned PVC cable sheath material including material carry out melting mixing and form half plastifying material, half plastifying material
Twin-screw homogenizing is carried out through cone Dual-conveying tall to double screw extruder；
Twin-screw homogenization step: being set in 150-155 DEG C for the barrel temperature of double screw extruder, and screw speed 90-100 turns/
Point, half plastifying material is after twin-screw extrusion, and the SOPVC film feed back after making stabilizer, rate accelerating material and plasticizing is in high temperature and shearing
The lower further melting homogenizing of effect；
Single screw rod melt filteration step: single screw rod melt filteration is divided into first segment filtering and accepts the second segment mistake of first segment filtering
Filter, first segment are filtered into the filter structure that the first single screw extrusion machine is equipped with, and second segment is filtered into the second single screw extrusion machine and sets
Some filter structures, the first single screw extrusion machine and the second single screw extrusion machine are arranged in the form of front and back is accepted, and plastifying material is equal
After change in first, second section of filtering, by stabilizer, plasticizer, lubricant, inorganic filler, antioxidant and carbon black component
Melting transformation, makes SOPVC coating materials be changed into uniform cable jacket material melt.
9. method according to claim 8, it is characterised in that: the SOPVC for being broken into fragment shape to mixer addition in three times is thin
The method of film feed back is: the inventory of first time is 120 kg, so that kettle temperature is gone back up to 155 DEG C after 6 minutes, and make film feed back
It is compacted in plasticizing shape；Second of throwing, 30 kilograms of SOPVC film feed backs, while putting into 69 kilograms of plasticizer and 5 kilograms of calcium
Zinc stabilizer, after after five minutes, the load weighted lubricant of investment third time, inorganic filler and antioxidant, and through mixing 6 minutes
After discharge, material is in being plasticized uniform rubbery state at this time.
10. method as claimed in claim 9, it is characterised in that: cone Dual-conveying tall is two taper feed screws, is set to feeding trough
In, and the steering of two conical screws is identical, when assembly, 180 ° of phase angles of difference of two conical screws, in which: two taper feeding spiral shells
The diameter at butt end 360mm of bar, draw ratio 9:1；Feeding trough is set having a size of 2m × 2m × 1.6m, four wall of length and width with controllable temperature
It applies, heating power 8KW.
11. method as claimed in claim 10, it is characterised in that: plastifying material is after the first single screw extrusion machine, through 80 mesh
Filter screen filters the coarse granule impurity in SOPVC coating materials；First 150-160 DEG C of set temperature of single screw rod barrel, extrusion screw rod turn
Fast 36-40 revs/min；Second segment is filtered into extruding pelletization and further filters after plastifying material forms particle through 140 mesh filter screens
Crystal point and smaller impurity particle in SOPVC coating materials.
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Application publication date: 20190531 |