CN102643474B - Polyethylene mixing material for high-cohesive-force electrolytic cathode plate sealing strip and preparation method thereof - Google Patents
Polyethylene mixing material for high-cohesive-force electrolytic cathode plate sealing strip and preparation method thereof Download PDFInfo
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- CN102643474B CN102643474B CN2012101393140A CN201210139314A CN102643474B CN 102643474 B CN102643474 B CN 102643474B CN 2012101393140 A CN2012101393140 A CN 2012101393140A CN 201210139314 A CN201210139314 A CN 201210139314A CN 102643474 B CN102643474 B CN 102643474B
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- negative plate
- mixing material
- sealed strip
- high adhesion
- oxidation inhibitor
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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
- B29C48/04—Particle-shaped
-
- 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
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Abstract
The invention provides a polyethylene mixing material for a high-cohesive-force electrolytic cathode plate sealing strip and a preparation method thereof, which belong to the technical field of plastic processing and application and the technical field of wet electrolysis of metal including copper and the like. The polyethylene mixing material for producing the electrolytic cathode plate sealing strip comprises, by weight: 100 parts of polyethylene resin, 0.1-20 parts of linear low-density polyethylene resin, 0.1-10 parts of functional polymers, 0.1-1 part of antioxygen, 0.05-1 part of metal deactivator and appropriate parts of colorants. The mixing material has the advantages of being long in service life, high in cohesive strength with a cathode plate and the like.
Description
Technical field
The present invention relates to polyethylene mixing material and preparation method for high adhesion electrolytic negative plate sealed strip, it is good to have with the negative plate adhesive property, and the characteristics that the life-span is long belong to the wet method electrolysis technical field of the 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 the method for electrolysis.Wherein, important production parts are negative plate, by electrode, introduce negative charge, and bivalent cupric ion or mn ion, zine ion reduce and form copper, manganese, zinc on negative plate, then by the unit of delaminating, cathode copper are peeled, and form highly purified metal.Negative plate mainly adopts stainless steel or titanium to make, and for reaching the purpose of insulation, shape of product rule, on the both sides of negative plate, need to add one deck insulated enclosure bar.
The production method of sealed strip has two kinds: 1) by forcing machine, the polyethylene melting directly extruded and is attached on negative plate, and then cooling; 2) first produce the insulated enclosure bar, then be set on negative plate.Produce the insulated enclosure bar by first method, there be the shortcoming poor with the metal polar plate viscosifying power in the polythene material that manufacturer is used at present, simultaneously due to electrolyte temperature in electrolyzer higher (the electrolytic copper temperature is generally at 65 ℃), material is subject to thermo-oxidative ageing, exist and contain transition metal in electrolytic solution in addition, make degradation process accelerate, the sealed strip life-span of producing in this way is generally about 3 months.After the insulated enclosure bar is aging, cause the electrolytic copper of producing deformity to occur, the problem such as knob, end face be uneven as occurred, affect production marketing.While reusing, first sealed strip is peeled from negative plate, then, to the polishing of sealed strip place, again melt extrude moulding, this has increased labour intensity greatly, and production efficiency is not high yet.The sealed strip of producing by second method can be with reference to Granted publication CN 201169646Y(application number 200820096325.4) structure of " the sealed insulation contained side bar of electrolytic negative plate ", the sealed strip of this structure is comprised of sealed insulation bar contained side and tensioning rod, under the effect of tensioning rod, sealed edge is clamped to negative plate.Yet because macromolecular material has creep properties, especially when middle electrolyte temperature is higher, be more prone to occur creep, make the insulated enclosure bar of said structure not clamping phenomenon occur, have to coat seal gum in the junction of sealed strip and negative plate, this has not only increased cost, simultaneously due to seal gum and the bounding force of sealed strip own not strong, also easily make electrolytic solution penetrate on the negative plate of sealed strip sealing place, make metallic reducing at the sealed strip place, while peeling off, under the effect of mechanical force, sealed strip is accelerated to be destroyed.
Thus, the sealed insulation contained side bar of existing electrolytic negative plate exists that bounding force is strong, short defect of life-span more.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of electrolytic negative plate sealed strip high adhesion polyethylene composition, produce sealed strip by extrusion by melting, use the High molecular weight polyethylene resin, be aided with linear low density polyethylene resin simultaneously and improve its toughness, add functional polymer to increase the bounding force that constituent has solved constituent and negative plate, add oxidation inhibitor and metal passivator to make its life-span increase substantially.
The scheme solved the problems of the technologies described above is: high adhesion electrolytic negative plate sealed strip polyethylene mixing material, the unit meter contains 100 parts of polyvinyl resins by weight, linear low density polyethylene resin 0.1-20 part, functional polymer 0.1-10 part, oxidation inhibitor 0.1-1 part, metal passivator 0.05-1 part, amount of colorant.
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: the unit meter contains 100 parts of polyvinyl resins by weight, linear low density polyethylene resin 5-15 part, functional polymer 2-6 part, oxidation inhibitor 0.2-0.8 part, metal passivator 0.06-0.08 part, amount of colorant.
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: described polyvinyl resin is multipolymer, and comonomer is alpha-olefin, its density>=0.940g/cm
3, melt flow rate (MFR)≤1.0g/10min.
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: described linear low density polyethylene resin is multipolymer, and comonomer is alpha-olefin, its density≤0.926g/cm
3, melt flow rate (MFR)≤2.0g/10min.
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: described functional polymer is ethylene copolymer or poly material modified (preferred, the comonomer of described ethylene copolymer is vinylformic acid; Preferably, described poly material modified be polycthylene grafted material; Preferably, the compound that described graft materials monomer is vinylformic acid, maleic anhydride, glycidyl methacrylate, vinylbenzene or described monomer).
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: described oxidation inhibitor is major-minor oxidation inhibitor, the part by weight of major-minor oxidation inhibitor is that 1:0.2-3(is preferred, primary antioxidant is Hinered phenols or amine primary antioxidant, and auxiliary antioxidant is phosphorous acid esters).
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: described metal passivator is acid amides or hydrazide kind compound.
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: described tinting material is carbon black or its masterbatch.
Described high adhesion electrolytic negative plate sealed strip polyethylene mixing material, preferred scheme is: the mass concentration of described black masterbatch is 5%-50%.
The present invention also provides the preparation method of described high adhesion electrolytic negative plate sealed strip with the polyethylene mixing material, by following operation, is undertaken:
A) by weight, polyvinyl resin, linear low density polyethylene resin, functional polymer, oxidation inhibitor, metal passivator, lubricant, tinting material is even in stirrer for mixing, squeeze into feed bin;
B), by twin screw or single Screw Extrusion granulation for the compound in feed bin, 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 be cut into.
The present invention is by use the High molecular weight polyethylene resin to be aided with the toughness of linear low density polyethylene resin constituent simultaneously, can meet the requirement to sealed strip toughness when mechanically peel of the industries such as electrolytic copper, add functional polymer greatly to increase the bounding force of constituent and negative plate, sealing effectiveness strengthens greatly, overcome the phenomenon of electrolytic solution infiltration sealing place, added oxidation inhibitor to improve the life-span of the heat-resisting oxygen of constituent, metal passivator makes the catalyzed degradation effect decrease of transition metal ion to constituent, its life-span can be increased to more than 2 years, the tinting material carbon black added or its masterbatch, effect with anti-photoaging, can improve storage and the work-ing life of sealed strip.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described.
The material that the present invention adopts has: polyvinyl resin, linear low density polyethylene resin, functional polymer, oxidation inhibitor, metal passivator, amount of colorant.
Described polyvinyl resin is copolymerized macromolecule amount high density polyethylene(HDPE), and the property indices requirement is: comonomer is alpha-olefin, its density>=0.940g/cm
3, melt flow rate (MFR)≤1.0g/10min.
Described linear low density polyethylene resin is multipolymer, and comonomer is alpha-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 functional polymer ethylene copolymer or poly material modified, the comonomer of ethylene copolymer is vinylformic acid, poly material modified be polycthylene grafted material, the compound that grafted monomer is vinylformic acid, maleic anhydride, glycidyl methacrylate, vinylbenzene or above-mentioned monomer.It utilizes the polarity of functional polymer to improve the bonding force of constituent and negative plate as the used time, improves sealing effectiveness.
Described oxidation inhibitor is the Hinered phenols material, and its effect is to catch polyethylene be heated in processing or use procedure or be subject to the free radical that ultraviolet effect forms, and guarantees the life-span of materials'use.
Described metal passivator is acid amides or hydrazide kind compound, metal passivator add can with electrolytic solution in transition metal ion especially cupric ion, iron ion form inner complex, reduce the catalyzed degradation of transition metal ion to constituent, thereby improve its life-span.
The tinting material carbon black added or its masterbatch, be the screener of UV-light, the free radical that can be produced by uviolizing, storage and the work-ing life of improving sealed strip.
Below the embodiment of several different proportionings of the present invention:
Annotate: EAA is ethene and acrylic copolymer, and LLDPE-g-MAH is the LLDPE grafted maleic anhydride, and LLDPE-g-AA (St) is LLDPE graft acrylic acid vinylbenzene.
The present invention prepares high adhesion electrolytic negative plate sealed strip:
A) by weight, polyvinyl resin, linear low density polyethylene resin, functional polymer, oxidation inhibitor, metal passivator, tinting material is even in stirrer for mixing, squeeze into feed bin;
B), by twin screw or single Screw Extrusion granulation for the compound in feed bin, 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 be cut into.
The performance representative value of the mixing material that the present invention obtains is in Table 1.
The performance performance representative value of polyethylene mixing material for table 1 high adhesion electrolytic negative plate sealed strip
| Sequence number | Project | Performance |
| 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 |
| 7 | Stripping strength (N/cm) with pole plate | ≥50 |
As can be seen from the above table, good technique effect of the present invention is embodied in:
1, added functional polymer in mixing material, the sealed strip that extrusion moulding obtains and the stripping strength of pole plate are high, good sealing effect;
2, added oxidation inhibitor, metal passivator in mixing material, the life-span of material extends greatly, can reach more than 2 years;
3, toughness of material is good, can stand the impact of mechanical force when peeling off, not broken;
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 ℃, head 210-230 ℃.Above processing condition can be adjusted as the case may be, and generally, top temperature is not generally over 240 ℃.
It 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 above-described embodiment.A lot of distortion can also be arranged.Those of ordinary skill in the art, from then on, with disclosed can mention or it is associated in invention, all should think the claimed scope of this patent.
Claims (7)
1. high adhesion electrolytic negative plate sealed strip polyethylene mixing material, it is characterized by: the unit meter contains 100 parts of polyvinyl resins by weight, linear low density polyethylene resin 0.1-20 part, functional polymer 0.1-10 part, oxidation inhibitor 0.1-1 part, metal passivator 0.05-1 part, amount of colorant; Described polyvinyl resin is multipolymer, and comonomer is alpha-olefin, its density>=0.940g/cm
3, melt flow rate (MFR)≤1.0g/10min; Described functional polymer is ethylene copolymer or poly material modified, the comonomer of described ethylene copolymer is vinylformic acid, described poly material modified be polycthylene grafted material, the compound that described graft materials monomer is vinylformic acid, glycidyl methacrylate, vinylbenzene or described monomer; Described oxidation inhibitor is major-minor oxidation inhibitor, and primary antioxidant is Hinered phenols or amine primary antioxidant, and auxiliary antioxidant is phosphorous acid esters, and the part by weight of major-minor oxidation inhibitor is 1: 0.2-3; Described metal passivator is acid amides or hydrazide kind compound.
2. high adhesion electrolytic negative plate sealed strip polyethylene mixing material according to claim 1, is characterized by: linear low density polyethylene resin 5-15 part, functional polymer 2-6 part, oxidation inhibitor 0.2-0.8 part, metal passivator 0.06-0.08 part.
3. high adhesion electrolytic negative plate sealed strip polyethylene mixing material according to claim 1 and 2, it is characterized by: described linear low density polyethylene resin is multipolymer, comonomer is alpha-olefin, its density≤0.926g/cm
3, melt flow rate (MFR)≤2.0g/10min.
4. high adhesion electrolytic negative plate sealed strip polyethylene mixing material according to claim 1 and 2, it is characterized by: described tinting material is carbon black or its masterbatch.
5. high adhesion electrolytic negative plate sealed strip polyethylene mixing material according to claim 4, it is characterized by: the mass concentration of described black masterbatch is 5%-50%.
6. high adhesion electrolytic negative plate sealed strip polyethylene mixing material according to claim 5, it is characterized by: mass concentration is 20%-30%.
7. use the preparation method of polyethylene mixing material according to the described high adhesion electrolytic negative plate of claim 1 or 2 sealed strip, it is characterized by: undertaken by following operation:
A) by weight, polyvinyl resin, linear low density polyethylene resin, functional polymer, oxidation inhibitor, metal passivator, lubricant, tinting material is even in stirrer for mixing, squeeze into feed bin;
B), by twin screw or single Screw Extrusion granulation for the compound in feed bin, 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 be cut into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101393140A CN102643474B (en) | 2012-05-08 | 2012-05-08 | Polyethylene mixing material for high-cohesive-force electrolytic cathode plate sealing strip and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101393140A CN102643474B (en) | 2012-05-08 | 2012-05-08 | Polyethylene mixing material for high-cohesive-force electrolytic cathode plate sealing strip and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102643474A CN102643474A (en) | 2012-08-22 |
| CN102643474B true CN102643474B (en) | 2013-12-04 |
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Citations (3)
| 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 |
| CN102241850A (en) * | 2011-06-22 | 2011-11-16 | 青岛润兴塑料新材料有限公司 | Polyethylene modified plastic with high performance and double resistance and manufacture method thereof |
-
2012
- 2012-05-08 CN CN2012101393140A patent/CN102643474B/en not_active Expired - Fee Related
Patent Citations (3)
| 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 |
| CN102241850A (en) * | 2011-06-22 | 2011-11-16 | 青岛润兴塑料新材料有限公司 | Polyethylene modified plastic with high performance and double resistance and manufacture method thereof |
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| CN102643474A (en) | 2012-08-22 |
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