CN102643473A - Polyethylene compound used for long-service-life electrolysis cathode plate sealing strip and preparation method thereof - Google Patents
Polyethylene compound used for long-service-life electrolysis cathode plate sealing strip and preparation method thereof Download PDFInfo
- Publication number
- CN102643473A CN102643473A CN2012101393121A CN201210139312A CN102643473A CN 102643473 A CN102643473 A CN 102643473A CN 2012101393121 A CN2012101393121 A CN 2012101393121A CN 201210139312 A CN201210139312 A CN 201210139312A CN 102643473 A CN102643473 A CN 102643473A
- Authority
- CN
- China
- Prior art keywords
- negative plate
- vilaterm
- sealed strip
- long life
- mixing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Abstract
The invention provides a compound used for a long-service-life electrolysis cathode plate sealing strip and a preparation method thereof, belonging to the technical field of plastic processing and application and the technical field of wet electrolysis of metals such as copper. The components used for producing the electrolysis cathode plate sealing strip include 100 parts of polyethylene resin, 0.1-20 parts of linear low density polyethylene, 0.1-1 part of oxidization inhibitor, 0.05-1 part of metal deactivator, 0.1-5 parts of flow modifier and a proper amount of colorant according to weight parts. The compound has the characteristics of long service life and smooth surface of the molded sealing strip.
Description
Technical field
The present invention relates to a kind of electrolytic negative plate sealed strip with long lifetime Vilaterm mixing material and preparation method, have the characteristics of life-span length, good toughness, belong to the wet method electrolysis tech field of metals such as plastics processing and application technology and copper.
Background technology
At present, suitability for industrialized production high purity copper, manganese, zinc mainly adopt electrolytic method.Wherein, important production parts are negative plate, introduce negative charge through electrode, and bivalent cupric ion or mn ion, zine ion reduce on negative plate and form copper, manganese, zinc, through the unit of delaminating cathode copper are peeled then, form highly purified metal.Negative plate mainly adopts stainless steel or titanium to process, and for reaching the purpose of insulation, shape of product rule, need add one deck insulated enclosure bar on the both sides of negative plate.
The working method of sealed strip is: 1) through forcing machine the Vilaterm fusion is directly extruded and be attached on the negative plate cooling then; 2) produce the insulated enclosure bar earlier; Be set on the negative plate then; Can be with reference to the structure of Granted publication CN 201169646Y (application number 200820096325.4) " the sealed insulation contained side bar of electrolytic negative plate "; The sealed strip of this structure is made up of sealed insulation bar contained side and tensioning rod, under the effect of tensioning rod, sealed edge is clamped negative plate.No matter be first kind or second kind of working method; Manufacturer all adopts the polythene material of suitability for industrialized production at present; Owing to electrolyte temperature higher (the electrolytic copper temperature is generally at 65 ℃) in the electrolyzer, material receives thermo-oxidative ageing simultaneously, exists in the electrolytic solution in addition and contains transition metal; Make degradation process quicken, the sealed strip life-span of producing in this way is generally about 3 months.After the insulated enclosure bar was aging, deformity appearred in the electrolytic copper that causes producing, as problems such as knob, end face be uneven occurred, influenced production marketing.When reusing, earlier sealed strip is peeled from negative plate, to the polishing of sealed strip place, melt extrude moulding again again, this has increased labour intensity greatly, and production efficiency is not high yet.
This shows that there are defectives such as toughness is low, the life-span is short in existing contained side bar more.
Summary of the invention
Deficiency to prior art; The present invention provides a kind of electrolytic negative plate sealed strip with long lifetime Vilaterm mixing material; Produce sealed strip through extrusion by melting, use the High molecular weight polyethylene resin, be aided with linear low density polyethylene resin simultaneously and improve its toughness; Add oxidation inhibitor and metal passivator and make its life-span increase substantially, add flow ability modifying agent and improve the processing characteristics of constituent and the apparent property of goods.Remove this, the present invention also provides the preparation method of this mixing material.
The scheme that solves the problems of the technologies described above is:
Long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, and the unit meter contains 100 parts of polyvinyl resins by weight, linear low density polyethylene resin 0.1-20 part; Oxidation inhibitor 0.1-1 part; Metal passivator 0.05-1 part, flow ability modifying agent 0.1-5 part, amount of colorant.
Described long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, and in preferred scheme, described polyvinyl resin is a multipolymer, and comonomer is a terminal olefin, its density>=0.0.940g/cm
3, melt flow rate(MFR)≤1.0g/10min;
Described long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, and in preferred scheme, described linear low density polyethylene resin is a multipolymer, and comonomer is a terminal olefin, its density≤0.926g/cm
3, melt flow rate(MFR)≤2.0g/10min;
Described long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, and in preferred scheme, described oxidation inhibitor is Hinered phenols or amine primary antioxidant and phosphorous acid esters auxiliary antioxidant, and the part by weight of major-minor oxidation inhibitor is 1:0.2-3;
Described long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, and in preferred scheme, described metal passivator is acid amides or hydrazide kind compound;
Described long life electrolysis negative plate sealed strip is used the Vilaterm mixing material; In preferred scheme; Said flow ability modifying agent is one or more a mixture of following material: polyethylene wax, paraffin, Poly Propylene Wax, OPE, brown coal ester type waxes, calcium stearate, Zinic stearas; The silicone lubricant, the fluorinated lubricant;
Described long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, and in preferred scheme, described amount of colorant is carbon black or its masterbatch, and the mass concentration of said black master is 5%-50%.
Long lifetime long life electrolysis negative plate sealed strip is undertaken by following operation with the preparation method of Vilaterm mixing material:
A) by weight, with polyvinyl resin, linear low density polyethylene resin, oxidation inhibitor, flow ability modifying agent, tinting material is even in stirrer for mixing, squeezes into feed bin;
B) with the compound in the feed bin with twin screw or single screw rod extruding pelletization, processing parameter is selected as follows:
Body temperature: 170-220 ℃, 190-220 ℃, 200-225 ℃, 210-230 ℃, 210-230 ℃, 210-230 ℃, head temperature: 210-220 ℃;
Engine speed: 30-60 rev/min, feeding rotating speed: 160-180 rev/min;
C) the pellet paper and plastics compound bag packing that is cut into.
The present invention is aided with the toughness of linear low density polyethylene resin constituent simultaneously through using the High molecular weight polyethylene resin; Can satisfy industries such as electrolytic copper when mechanically peel to the requirement of sealed strip flexible; The adding functional polymer has increased the bounding force of constituent and negative plate greatly, and sealing effectiveness wind strengthens greatly, has overcome the phenomenon of electrolytic solution infiltration seals at; Add the life-span that oxidation inhibitor has improved the heat-resisting oxygen of constituent; Metal passivator makes transition metal ion reduce significantly the catalyzed degradation effect of constituent, and its life-span can be increased to more than 2 years, the tinting material carbon black of adding or its masterbatch; Have aged effect against sunshine, can improve the storage and the work-ing life of sealed strip.
Embodiment
The present invention proposes long life electrolysis negative plate sealed strip with Vilaterm mixing material and preparation method thereof, and the material that it adopts has: polyvinyl resin, linear low density polyethylene resin, oxidation inhibitor, metal passivator, flow ability modifying agent, amount of colorant.
Described polyvinyl resin is density or a high density polyethylene(HDPE) in the copolymerized macromolecule amount, and the requirement of each item performance index is: comonomer is a terminal olefin, its density>=0.940g/cm
3, melt flow rate(MFR)≤1.0g/10min.
Said linear low density polyethylene resin is a multipolymer, and comonomer is a terminal olefin, its density≤0.926g/cm
3, melt flow rate(MFR)≤2.0g/10min.The purpose that adds type low density polyethylene resin is further to improve the toughness of constituent.
Described oxidation inhibitor is the Hinered phenols material, and its effect is to catch the radical that Vilaterm is heated in processing or use or receives action of ultraviolet ray formation, guarantees the life-span that material uses.
Described metal passivator is acid amides or hydrazide kind compound; The adding of metal passivator can form inner complex with transition metal ion in the electrolytic solution especially cupric ion, iron ion; Reduce the catalyzed degradation of transition metal ion, thereby improve its life-span constituent.
The flow ability modifying agent that adds can improve the flowability of constituent, the electric current of forcing machine when reducing extrusion moulding, and the sealed strip smooth surface of producing simultaneously helps peeling off of electrolytic metal.
The tinting material carbon black or its masterbatch that add are the screeners of UV-light, can improve the storage and the work-ing life of sealed strip by the radical of uviolizing generation.
Below be the embodiment of several kinds of different proportionings of the present invention:
The present invention prepares long life electrolysis negative plate sealed strip:
A) by weight, polyvinyl resin, linear low density polyethylene resin, oxidation inhibitor, metal passivator, lubricant, tinting material is even in stirrer for mixing, squeeze into feed bin;
B) with the compound in the feed bin with twin screw or single screw rod extruding pelletization, processing parameter is selected as follows:
Body temperature: 170-220 ℃, 190-220 ℃, 200-225 ℃, 210-230 ℃, 210-230 ℃, 210-230 ℃, head temperature: 210-220 ℃;
Engine speed: 30-60 rev/min, feeding rotating speed: 160-180 rev/min;
C) the pellet paper and plastics compound bag packing that is cut into.
The performance representative value of the mixing material that the present invention obtains is seen table 1.
Table 1 long life electrolysis negative plate sealed strip is with the performance performance representative value of Vilaterm mixing material
| 1 | Tensile strength (MPa) | ≥25 |
| 2 | Elongation at break (%) | ≥350 |
| 3 | Oxidation induction time (min, 200 ℃) | ≥200 |
| 4 | 20 ℃ of volume specific resistances (Ω cm) | ≥1.5×10 13 |
| 5 | Dielectric strength (MV/m, 20 ℃) | ≥25.6 |
| 6 | Embrittlement temperature (℃) | ＜－70 |
Can find out that by last table good technique effect of the present invention is embodied in:
1, added oxidation inhibitor, metal passivator in the mixing material, the life-span of material prolongs greatly, can reach more than 2 years;
2, toughness of material is good, when peeling off, can stand the impact of mechanical force, and is not broken;
3, add flow ability modifying agent in the mixing material and can improve Drawing abillity, the sealed strip smooth surface of processing simultaneously, the cathode copper of production, manganese, zinc are prone to get off from sur-face peeling.
Mixing material of the present invention can adopt single screw rod to carry out the production of insulated enclosure bar, and processing temperature is: fuselage 180-220 ℃, and head 210-230 ℃.Above processing condition can be adjusted as the case may be, and generally speaking, top temperature is not generally above 240 ℃.
Should be pointed out that above embodiment is the more representational example of the present invention, obvious technical scheme of the present invention is not limited to the foregoing description.A lot of distortion can also be arranged.From then on those of ordinary skill in the art with disclosed can mention or it is associated in the invention, all should think the claimed scope of this patent.
Claims (10)
1. long life electrolysis negative plate sealed strip is used the Vilaterm mixing material, it is characterized by: unit meter by weight, contain 100 parts of polyvinyl resins; Linear low density polyethylene resin 0.1-20 part, oxidation inhibitor 0.1-1 part, metal passivator 0.05-1 part; Flow ability modifying agent 0.1-5 part, amount of colorant.
2. long life electrolysis negative plate sealed strip according to claim 1 is used the Vilaterm mixing material, it is characterized by: above-mentioned polyvinyl resin is a multipolymer, and comonomer is a terminal olefin, its density>=0.935g/cm
3, melt flow rate(MFR)≤1.0g/10min.
3. long life electrolysis negative plate sealed strip according to claim 1 is used the Vilaterm mixing material, it is characterized by: above-mentioned linear low density polyethylene resin is a multipolymer, and comonomer is a terminal olefin, its density≤0.926g/cm
3, melt flow rate(MFR)≤2.0g/10min.
4. long life electrolysis negative plate sealed strip according to claim 1 is used the Vilaterm mixing material, it is characterized by: described oxidation inhibitor is Hinered phenols or amine primary antioxidant and phosphorous acid esters auxiliary antioxidant, and the part by weight of major-minor oxidation inhibitor is 1:0.2-3.
5. long life electrolysis negative plate sealed strip according to claim 4 is used the Vilaterm mixing material, it is characterized by: the part by weight of major-minor oxidation inhibitor is 1:0.2-3.
6. long life electrolysis negative plate sealed strip according to claim 1 is used the Vilaterm mixing material, it is characterized by: described metal passivator is acid amides or hydrazide kind compound.
7. long life electrolysis negative plate sealed strip according to claim 1 is used the Vilaterm mixing material, it is characterized by: said flow ability modifying agent is one or more a mixture of following material: polyethylene wax, paraffin, Poly Propylene Wax, OPE, brown coal ester type waxes, calcium stearate, Zinic stearas, silicone lubricant, fluorinated lubricant.
8. long life electrolysis negative plate sealed strip according to claim 1 is used the Vilaterm mixing material, it is characterized by: described tinting material is carbon black or its masterbatch.
9. long life electrolysis negative plate sealed strip according to claim 8 is used the Vilaterm mixing material, it is characterized by: the mass concentration of said black master is 5%-50%.
10. according to the preparation method of the arbitrary described long life electrolysis negative plate sealed strip of claim 1-9, it is characterized by: undertaken by following operation with the Vilaterm mixing material:
A) by weight, with polyvinyl resin, linear low density polyethylene resin, oxidation inhibitor, metal passivator, flow ability modifying agent, tinting material are even in stirrer for mixing, squeeze into feed bin;
B) with the compound in the feed bin with twin screw or single screw rod extruding pelletization, processing parameter is selected as follows:
Body temperature: 170-220 ℃, 190-220 ℃, 200-225 ℃, 210-230 ℃, 210-230 ℃, 210-230 ℃, head temperature: 210-220 ℃;
Engine speed: 30-60 rev/min, feeding rotating speed: 160-180 rev/min;
C) the pellet paper and plastics compound bag packing that is cut into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139312.1A CN102643473B (en) | 2012-05-08 | 2012-05-08 | Polyethylene compound used for long-service-life electrolysis cathode plate sealing strip and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139312.1A CN102643473B (en) | 2012-05-08 | 2012-05-08 | Polyethylene compound used for long-service-life electrolysis cathode plate sealing strip and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102643473A true CN102643473A (en) | 2012-08-22 |
| CN102643473B CN102643473B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210139312.1A Expired - Fee Related CN102643473B (en) | 2012-05-08 | 2012-05-08 | Polyethylene compound used for long-service-life electrolysis cathode plate sealing strip and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1407009A (en) * | 2001-08-24 | 2003-04-02 | 夏平 | Antistatic polyolefine film |
| CN1464005A (en) * | 2002-06-11 | 2003-12-31 | 上海高分子功能材料研究所 | Silicon alkyl cross bonding polyethylene fire-retardancy insulating plastics |
-
2012
- 2012-05-08 CN CN201210139312.1A patent/CN102643473B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1407009A (en) * | 2001-08-24 | 2003-04-02 | 夏平 | Antistatic polyolefine film |
| CN1464005A (en) * | 2002-06-11 | 2003-12-31 | 上海高分子功能材料研究所 | Silicon alkyl cross bonding polyethylene fire-retardancy insulating plastics |
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| Publication number | Publication date |
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| CN102643473B (en) | 2014-04-02 |
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