CN103724793A - Heat-shrinkable bus-bar protective sleeve and preparation method thereof - Google Patents
Heat-shrinkable bus-bar protective sleeve and preparation method thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/02—Thermal shrinking
- B29C61/025—Thermal shrinking for the production of hollow or tubular articles
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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Abstract
The invention discloses a heat-shrinkable bus-bar protective sleeve comprising the following components in parts by weight: 100 parts of a resin substrate, 80-95 parts of a flame retardant, 2-5 parts of silicone master batch, 2-4 parts of a filler, 2.5-3.5 parts of a sensitizing agent, 4-5 parts of a color master batch, 2-4 parts of an antioxidant and 2-7 parts of a lubricating agent, wherein the resin substrate is one or a mixture of two or more of the following substances: linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene propylene rubber, a POE (Polyolefin Elastomer), a TPEE (Thermoplastic Polyether Ester Elastomer), an ethylene-vinyl acetate copolymer, an ethylene-methyl acrylate copolymer, an ethylene ethyl acrylate copolymer and an ethylene butyl acrylate copolymer; and the flame retardant is one or a mixture of two or more of the following substances: aluminum hydroxide, magnesium hydroxide, melamine cyanurate, ammonium polyphosphate and melamine pyrophosphate. The heat-shrinkable bus-bar protective sleeve disclosed by the invention is unlikely to age and crack and easy to install and replace.
Description
Technical field
The present invention introduces a kind of thermal contraction casing tube and preparation method thereof, is mainly used in the power switch cabinet of power supply system and the median generatrix row's of substation insulation protection.
Background technology
As everyone knows, busbar shrink sleeve has a wide range of applications in transformer and switching cabinet, the effect of mainly playing insulation protection, dwindling the volume of the equipment such as switching cabinet and avoid animalcule to get an electric shock.During " 12 ", national grid plan, with the amount of annual 3000 hundred million yuan of left and right, is invested 15,000 hundred million yuan altogether at intelligent grid, and wherein, half is for distribution network construction, and half is for power transmission network construction; In addition the investment amount of, planning again the extension of rural power grids accounts for half of distribution network investment.The relevant staff of State Grid Corporation of China also represents: 15,000 hundred million yuan is expection, and actual investment may be more than.Under this background, obviously the market of busbar thermal contraction casing tube is also huge.Therefore, in the face of external strong rival, as Tyco, Sumitomo, 3M and Canusa etc., exploitation high-performance thermal contraction busbar, the problem of improving in producing is urgently to be resolved hurrily.
Existing busbar pipe ageing resistance is poor, the jagged easy cracking of edge cuts, and after burning, smog toxicity is large, and is difficult for installing when the more busbar in suit turning, sticky row occurs sometimes and be difficult for peeling off replacing.
Summary of the invention
The technical problem to be solved in the present invention is: the present invention is used for solving the aging rear poor mechanical property of domestic busbar heat-shrinkable T bush; easy to crack; be not easy to the problem of installing, provide a kind of be difficult for aging, not easy to crack, install and change easy thermal contraction busbar protective casing and preparation method thereof.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: a kind of thermal contraction busbar protective casing, and it is comprised of the following component according to parts by weight meter:
Described resin base material is a kind of, two or more the mixture in following material: linear low density polyethylene; Medium-density polyethylene; High density polyethylene(HDPE); Ethylene-propylene rubber(EPR); POE elastomerics; TPEE elastomerics; Ethene-acetate ethylene copolymer; Ethene-methyl acrylate copolymer; Ethene-ethyl acrylate copolymer; Ethylene butyl acrylate multipolymer;
Described fire retardant is a kind of, two or more the mixture in following material: aluminium hydroxide, magnesium hydroxide, melamine cyanurate, ammonium polyphosphate, melamine pyrophosphate;
The content of siloxane 50% of described silicone master batch, polypropylene or polyethylene are as the carrier of silicone master batch;
Described filler is one or both the mixture in following material: kaolin; Nano modification polynite; Calcium carbonate.
The further restriction of technique scheme is: described sensitizing agent is one or both the mixture in following material: cyanacrylate; Dicumyl peroxide.
The further restriction of technique scheme is: the carrier of described Masterbatch be in polypropylene, polyethylene or ethylene-vinyl acetate copolymer a kind of, two or more.
The further restriction of technique scheme is: described oxidation inhibitor is the wherein mixture of a class or two classes of Hinered phenols antioxidant and phosphite antioxidant;
Above-mentioned Hinered phenols antioxidant is a kind of, two or more the mixture in following material: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; The positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid; 2,2-bis-(4-hydroxy phenyl) propane; 2,2-thiobis (4-methyl-6-tert.-butyl phenol);
Above-mentioned phosphite antioxidant is a kind of, two or more the mixture in following material: three (Isosorbide-5-Nitrae one di-tert-butyl-phenyl) sub-phosphide; Two (2,4 one di-tert-butyl-phenyl) pentaerythritol diphosphate; Two (octadecyl) pentaerythritol diphosphites.
The further restriction of technique scheme is: described lubricant is a kind of, two or more the mixture in following material: stearic acid; Zinic stearas; Barium stearate; Aluminum stearate; Calcium stearate; Magnesium Stearate; Polyethylene wax.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: a kind of preparation method of above-mentioned thermal contraction busbar protective casing, it comprises the steps:
Step 1: take following material according to parts by weight: 70-100 parts of resin base materials; 80-95 parts of fire retardants, 2-5 parts of silicone master batch, 2-4 parts of fillers, 2.5-3.5 parts of sensitizing agents, 4-5 parts of Masterbatchs, 2-4 parts, oxidation inhibitor, 2-7 parts of lubricants;
Step 2: pack the inelastic body in resin base material and other component in stirrer evenly mixing; then pour in Banbury mixer mixing 10-20min at 90-120 ℃ into; add again the elastomerics in resin base material; Banbury mixer stand up 8-12 times abundant mixing; the raw material mixing is guaranteed for 1-3 times evenly with dual-screw pelletizer is mixing; then extrude granulation, dress bag.As mixing difficulty can add repeatedly mixing by raw material in batches;
Step 3: extrude work in-process tubing with the single screw extrusion machine of 65#-90# at 85-140 ℃, work in-process do not flatten to coil in pipe form, adopts the cooling work in-process of full pipe water mist sprinkling simultaneously;
Step 4: will extrude rumbatron or the Guyuan irradiation of work in-process with the above energy of 4.5MeV, the work in-process that form after being cross-linked are expanded 2-4 times at 90-130 ℃;
In step 2, the elastomerics in resin base material refers to ethylene-propylene rubber(EPR), POE elastomerics or TPEE elastomerics.
The further restriction of technique scheme is: described sensitizing agent is one or both the mixture in following material: cyanacrylate; Dicumyl peroxide.
The further restriction of technique scheme is: the carrier of described Masterbatch be in polypropylene, polyethylene or ethylene-vinyl acetate copolymer a kind of, two or more.
The further restriction of technique scheme is: described oxidation inhibitor is the wherein mixture of a class or two classes of Hinered phenols antioxidant and phosphite antioxidant;
Above-mentioned Hinered phenols antioxidant is a kind of, two or more the mixture in following material: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; The positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid; 2,2-bis-(4-hydroxy phenyl) propane; 2,2-thiobis (4-methyl-6-tert.-butyl phenol);
Above-mentioned phosphite antioxidant is a kind of, two or more the mixture in following material: three (Isosorbide-5-Nitrae one di-tert-butyl-phenyl) sub-phosphide; Two (2,4 one di-tert-butyl-phenyl) pentaerythritol diphosphate; Two (octadecyl) pentaerythritol diphosphites.
The further restriction of technique scheme is: described lubricant is a kind of, two or more the mixture in following material: stearic acid; Zinic stearas; Barium stearate; Aluminum stearate; Calcium stearate; Magnesium Stearate; Polyethylene wax.
Compared with prior art, the present invention has following beneficial effect: thermal contraction busbar protective casing of the present invention be difficult for aging, not easy to crack, install with change easy.
Embodiment
The present invention proposes a kind of thermal contraction busbar protective casing, and it is comprised of the following component according to parts by weight meter:
Described resin base material is a kind of, two or more the mixture in following material: linear low density polyethylene; Medium-density polyethylene; High density polyethylene(HDPE); Ethylene-propylene rubber(EPR); POE elastomerics (Poly olefin elastomer, polyolefin elastomer); TPEE elastomerics (thermoplastic polyester elastomer); Ethene-acetate ethylene copolymer; Ethene-methyl acrylate copolymer; Ethene-ethyl acrylate copolymer; Ethylene butyl acrylate multipolymer.
Described fire retardant is a kind of, two or more the mixture in following material: aluminium hydroxide, magnesium hydroxide, melamine cyanurate, ammonium polyphosphate, melamine pyrophosphate.
The content of siloxane 50% of described silicone master batch, PP(polypropylene) or PE(polyethylene) as the carrier of silicone master batch.
Described filler is one or both the mixture in following material: kaolin; Nano modification polynite; Calcium carbonate.Filler rises increases insulation, proposes high-intensity effect.
Described sensitizing agent is one or both the mixture in following material: cyanacrylate; Dicumyl peroxide.
The carrier of described Masterbatch is PP(polypropylene), PE(polyethylene) or EVA(ethylene-vinyl acetate copolymer) in a kind of, two or more.
Described oxidation inhibitor is the wherein mixture of a class or two classes of Hinered phenols antioxidant and phosphite antioxidant.
Above-mentioned Hinered phenols antioxidant is a kind of, two or more the mixture in following material: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; The positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid; 2,2-bis-(4-hydroxy phenyl) propane; 2,2-thiobis (4-methyl-6-tert.-butyl phenol).
Above-mentioned phosphite antioxidant is a kind of, two or more the mixture in following material: three (Isosorbide-5-Nitrae one di-tert-butyl-phenyl) sub-phosphide; Two (2,4 one di-tert-butyl-phenyl) pentaerythritol diphosphate; Two (octadecyl) pentaerythritol diphosphites.
Described lubricant is a kind of, two or more the mixture in following material: stearic acid; Zinic stearas; Barium stearate; Aluminum stearate; Calcium stearate; Magnesium Stearate; Polyethylene wax.
The preparation method who the invention allows for above-mentioned thermal contraction busbar protective casing, comprises the steps:
Step 1: take following material according to parts by weight: 100 parts of resin base materials; 80-95 parts of fire retardants, 2-5 parts of silicone master batch, 2-4 parts of fillers, 2.5-3.5 parts of sensitizing agents, 4-5 parts of Masterbatchs, 2-4 parts, oxidation inhibitor, 2-7 parts of lubricants;
Step 2: pack the inelastic body in resin base material and other component in stirrer evenly mixing; then pour in Banbury mixer mixing 10-20min at 90-120 ℃ into; add again the elastomerics in resin base material; Banbury mixer stand up 8-12 times abundant mixing; the raw material mixing is guaranteed for 1-3 times evenly with dual-screw pelletizer is mixing; then extrude granulation, dress bag.As mixing difficulty can add repeatedly mixing by raw material in batches;
Step 3: extrude work in-process tubing with the single screw extrusion machine of 65#-90# at 85-140 ℃, work in-process do not flatten to coil in pipe form, adopts the cooling work in-process of full pipe water mist sprinkling simultaneously;
Step 4: will extrude rumbatron or the Guyuan irradiation of work in-process with the above energy of 4.5MeV, the work in-process that form after being cross-linked are expanded 2-4 times at 90-130 ℃.
In step 2, the elastomerics in resin base material refers to ethylene-propylene rubber(EPR), POE elastomerics or TPEE elastomerics.
In expansion technique, need to use silicone oil, this silicone oil is that viscosity is mixed with 2:1-3:1 ratio at 3000-6000cst silicone oil and 30000-40000cst silicone oil.
Preparation Example 1
According to parts by weight, take following component:
Resin base material except elastomerics is packed in stirrer and evenly mixed; then pour in Banbury mixer mixing 10-20min at 90-120 ℃ into; add again elastomerics; Banbury mixer stand up 8-12 times abundant mixing; the raw material mixing is guaranteed for 1-3 times evenly with dual-screw pelletizer is mixing; then extrude granulation, dress bag.As mixing difficulty can add repeatedly mixing by raw material in batches;
With the single screw extrusion machine of 65#-90#, extrude work in-process tubing at 85-140 ℃, work in-process do not flatten, and to coil in pipe form, adopt the cooling work in-process of full pipe water mist sprinkling simultaneously;
To extrude rumbatron or the Guyuan irradiation of work in-process with the above energy of 4.5MeV, the work in-process that form after being cross-linked are expanded 2-4 times at 90-130 ℃.During expansion, the preliminary roller in tractor and rear roller gap add deployed silicone oil, along with traction is coated in bus-bar shrinkable tube internal surface by silicone oil.
Preparation Example 2
According to parts by weight, take following component:
Resin base material except elastomerics is packed in stirrer and evenly mixed; then pour in Banbury mixer mixing 10-20min at 90-120 ℃ into; add again elastomerics; Banbury mixer stand up 8-12 times abundant mixing; the raw material mixing is guaranteed for 1-3 times evenly with dual-screw pelletizer is mixing; then extrude granulation, dress bag.As mixing difficulty can add repeatedly mixing by raw material in batches;
With the single screw extrusion machine of 65#-90#, extrude work in-process tubing at 85-140 ℃, work in-process do not flatten, and to coil in pipe form, adopt the cooling work in-process of full pipe water mist sprinkling simultaneously;
To extrude rumbatron or the Guyuan irradiation of work in-process with the above energy of 4.5MeV, the work in-process that form after being cross-linked are expanded 2-4 times at 90-130 ℃.During expansion, the preliminary roller in tractor and rear roller gap add deployed silicone oil, along with traction is coated in bus-bar shrinkable tube internal surface by silicone oil.
Preparation Example 3
According to parts by weight, take following component:
Resin base material except elastomerics is packed in stirrer and evenly mixed; then pour in Banbury mixer mixing 10-20min at 90-120 ℃ into; add again elastomerics; Banbury mixer stand up 8-12 times abundant mixing; the raw material mixing is guaranteed for 1-3 times evenly with dual-screw pelletizer is mixing; then extrude granulation, dress bag.As mixing difficulty can add repeatedly mixing by raw material in batches;
With the single screw extrusion machine of 65#-90#, extrude work in-process tubing at 85-140 ℃, work in-process do not flatten, and to coil in pipe form, adopt the cooling work in-process of full pipe water mist sprinkling simultaneously;
Rumbatron or the Guyuan irradiation of work in-process with the above energy of 4.5MeV will be extruded, the work in-process that form after being cross-linked are expanded 2-4 times at 90-130 ℃, during expansion, preliminary roller in tractor and rear roller gap add deployed silicone oil, along with traction is coated in bus-bar shrinkable tube internal surface by silicone oil.
According to the bus-bar shrinkable tube of preparing with upper type, measured aging front and back Mechanical Data is as follows:
Example one, aging front tensile strength 18.3-21.5MPa, elongation at break 554.7-592.6%.120 ℃/168h thermo-oxidative ageing back draft intensity 15.4-18.3MPa, elongation at break 501.8-536.4%.
Example two, aging front tensile strength 17.5-20.9MPa, elongation at break 546.5-619.6%.120 ℃/168h thermo-oxidative ageing back draft intensity 14.9-18.5MPa, elongation at break 510.6-539.2%.
Example three, aging front tensile strength 16.9-19.7MPa, elongation at break 541.3-622.1%.120 ℃/168h thermo-oxidative ageing back draft intensity 15.6-19.0MPa, elongation at break 523.5-558.6%.
The finished product of three examples is done to the test of breach cracking: bus-bar shrinkable tube is enclosed within on busbar, in 158 ℃ of baking ovens, shrinks 15min, take out and naturally cool to room temperature, at busbar pipe two ends, do 5mm depth breach, put into 120 ℃ of baking ovens 168 hours, breach does not extend, and the test of breach cracking is passed through.
The finished product of three examples is done to smog toxicity test: by IEC60684-2-2011, poison exponent is less than 3.
The finished product of three examples is done to lightning impulse and industrial frequency withstand voltage test, and according to DL/T1059-2007 standard, phase-ground, phase-alternate industrial frequency withstand voltage test 1min do not puncture, not flashover.Lightning impulse, phase-ground, phase-respectively suppress 15 times at anodal and negative pole not puncture, flashover not, specific requirement sees the following form:
Add silicone oil technique and can reduce the frictional force between busbar inside pipe wall and busbar, be specially adapted to the more busbar in turning and install.Under long-term aging condition, test, sticky row's phenomenon can not occur after tubing is aging yet, be easy to peel off replacing busbar protective casing.
Claims (10)
1. a thermal contraction busbar protective casing, it is comprised of the following component according to parts by weight meter:
Described resin base material is a kind of, two or more the mixture in following material: linear low density polyethylene; Medium-density polyethylene; High density polyethylene(HDPE); Ethylene-propylene rubber(EPR); POE elastomerics; TPEE elastomerics; Ethene-acetate ethylene copolymer; Ethene-methyl acrylate copolymer; Ethene-ethyl acrylate copolymer; Ethylene butyl acrylate multipolymer;
Described fire retardant is a kind of, two or more the mixture in following material: aluminium hydroxide, magnesium hydroxide, melamine cyanurate, ammonium polyphosphate, melamine pyrophosphate;
The content of siloxane 50% of described silicone master batch, polypropylene or polyethylene are as the carrier of silicone master batch;
Described filler is one or both the mixture in following material: kaolin; Nano modification polynite; Calcium carbonate.
2. a kind of thermal contraction busbar protective casing according to claim 1, is characterized in that: described sensitizing agent is one or both the mixture in following material: cyanacrylate; Dicumyl peroxide.
3. a kind of thermal contraction busbar protective casing according to claim 1, is characterized in that: the carrier of described Masterbatch be in polypropylene, polyethylene or ethylene-vinyl acetate copolymer a kind of, two or more.
4. a kind of thermal contraction busbar protective casing according to claim 1, is characterized in that: described oxidation inhibitor is the wherein mixture of a class or two classes of Hinered phenols antioxidant and phosphite antioxidant;
Above-mentioned Hinered phenols antioxidant is a kind of, two or more the mixture in following material: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; The positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid; 2,2-bis-(4-hydroxy phenyl) propane; 2,2-thiobis (4-methyl-6-tert.-butyl phenol);
Above-mentioned phosphite antioxidant is a kind of, two or more the mixture in following material: three (Isosorbide-5-Nitrae one di-tert-butyl-phenyl) sub-phosphide; Two (2,4 one di-tert-butyl-phenyl) pentaerythritol diphosphate; Two (octadecyl) pentaerythritol diphosphites.
5. a kind of thermal contraction busbar protective casing according to claim 1, is characterized in that: described lubricant is a kind of, two or more the mixture in following material: stearic acid; Zinic stearas; Barium stearate; Aluminum stearate; Calcium stearate; Magnesium Stearate; Polyethylene wax.
6. a preparation method for thermal contraction busbar protective casing as claimed in claim 1, is characterized in that, it comprises the steps:
Step 1: take following material according to parts by weight: 100 parts of resin base materials; 80-95 parts of fire retardants, 2-5 parts of silicone master batch, 2-4 parts of fillers, 2.5-3.5 parts of sensitizing agents, 4-5 parts of Masterbatchs, 2-4 parts, oxidation inhibitor, 2-7 parts of lubricants;
Step 2: pack the inelastic body in resin base material and other component in stirrer evenly mixing; then pour in Banbury mixer mixing 10-20min at 90-120 ℃ into; add again the elastomerics in resin base material; Banbury mixer stand up 8-12 times abundant mixing; the raw material mixing is guaranteed for 1-3 times evenly with dual-screw pelletizer is mixing; then extrude granulation, dress bag.As mixing difficulty can add repeatedly mixing by raw material in batches;
Step 3: extrude work in-process tubing with the single screw extrusion machine of 65#-90# at 85-140 ℃, work in-process do not flatten to coil in pipe form, adopts the cooling work in-process of full pipe water mist sprinkling simultaneously;
Step 4: will extrude rumbatron or the Guyuan irradiation of work in-process with the above energy of 4.5MeV, the work in-process that form after being cross-linked are expanded 2-4 times at 90-130 ℃;
In step 2, the elastomerics in resin base material refers to ethylene-propylene rubber(EPR), POE elastomerics or TPEE elastomerics.
7. the preparation method of thermal contraction busbar protective casing according to claim 1, is characterized in that, described sensitizing agent is one or both the mixture in following material: cyanacrylate; Dicumyl peroxide.
8. the preparation method of thermal contraction busbar protective casing according to claim 1, is characterized in that, the carrier of described Masterbatch be in polypropylene, polyethylene or ethylene-vinyl acetate copolymer a kind of, two or more.
9. the preparation method of thermal contraction busbar protective casing according to claim 1, is characterized in that, described oxidation inhibitor is the wherein mixture of a class or two classes of Hinered phenols antioxidant and phosphite antioxidant;
Above-mentioned Hinered phenols antioxidant is a kind of, two or more the mixture in following material: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; The positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid; 2,2-bis-(4-hydroxy phenyl) propane; 2,2-thiobis (4-methyl-6-tert.-butyl phenol);
Above-mentioned phosphite antioxidant is a kind of, two or more the mixture in following material: three (Isosorbide-5-Nitrae one di-tert-butyl-phenyl) sub-phosphide; Two (2,4 one di-tert-butyl-phenyl) pentaerythritol diphosphate; Two (octadecyl) pentaerythritol diphosphites.
10. the preparation method of thermal contraction busbar protective casing according to claim 1, is characterized in that, described lubricant is a kind of, two or more the mixture in following material: stearic acid; Zinic stearas; Barium stearate; Aluminum stearate; Calcium stearate; Magnesium Stearate; Polyethylene wax.
Priority Applications (1)
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| CN104151692A (en) * | 2014-08-11 | 2014-11-19 | 大连欧思特科技有限公司 | Long-afterglow photo-induced light-storing heat-shrink tube and preparation method thereof |
| CN105175897A (en) * | 2015-10-16 | 2015-12-23 | 太仓市晨洲塑业有限公司 | High-intensity low-density polyethylene sub-pipe |
| CN105801991A (en) * | 2014-12-31 | 2016-07-27 | 上海长园电子材料有限公司 | Halogen-free heat shrinkable casing pipe and preparation method thereof |
| CN105860229A (en) * | 2016-06-15 | 2016-08-17 | 潘海云 | Core-layer foamed composite tubular product and preparation process thereof |
| CN106046520A (en) * | 2016-07-21 | 2016-10-26 | 芜湖顺成电子有限公司 | Low-smoke zero-halogen flame-retardant cable material |
| CN106317590A (en) * | 2016-08-18 | 2017-01-11 | 苏州泰斯拓伟机电设备有限公司 | Alumina ceramic electrical stress control heat-shrinkable tube and preparation method thereof |
| CN106317591A (en) * | 2016-08-18 | 2017-01-11 | 苏州泰斯拓伟机电设备有限公司 | Magnetic conductive heat shrink tube and preparation method thereof |
| CN106317592A (en) * | 2016-08-18 | 2017-01-11 | 苏州泰斯拓伟机电设备有限公司 | Halogen-free flame-retardant thermal shrinkage pipe for nuclear power plant and preparation method thereof |
| CN106496758A (en) * | 2016-11-08 | 2017-03-15 | 长园集团股份有限公司 | A kind of three generations's nuclear power halogen-free non-red-phosphorus flame-retardant thermal shrinkable tube and preparation method thereof |
| CN107793689A (en) * | 2017-11-01 | 2018-03-13 | 深圳市沃尔核材股份有限公司 | A kind of high temperature tear-proof pyrocondensation bus-bar protective sleeve material prescription and its production method |
| CN107987486A (en) * | 2017-11-08 | 2018-05-04 | 江阴凯博通信科技有限公司 | On-deformable PE sheaths |
| CN108239330A (en) * | 2016-12-27 | 2018-07-03 | 上海凯波特种电缆料厂有限公司 | A kind of automotive line irradiated crosslinking low-smoke and halogen-free flame retardant material and preparation method thereof |
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| WO2018213952A1 (en) * | 2017-05-20 | 2018-11-29 | 南通大学 | Sterilization tray and storage tray having a magnetic base for clean bench |
| CN109354751A (en) * | 2018-11-20 | 2019-02-19 | 上海长园电子材料有限公司 | A kind of thermally conductive, insulation, anti-sticking anti-heat ageing heat-shrink tube and preparation method thereof |
| CN109438928A (en) * | 2018-10-09 | 2019-03-08 | 江阴凯博通信科技有限公司 | Low smoke halogen-free sheath material and its production technology |
| CN109705440A (en) * | 2018-01-30 | 2019-05-03 | 扬州辐照中心 | A kind of preparation method of halogen-free flameproof Special busbar connector box |
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| CN104151692A (en) * | 2014-08-11 | 2014-11-19 | 大连欧思特科技有限公司 | Long-afterglow photo-induced light-storing heat-shrink tube and preparation method thereof |
| CN104151692B (en) * | 2014-08-11 | 2017-01-11 | 大连欧思特科技有限公司 | Long-afterglow photo-induced light-storing heat-shrink tube and preparation method thereof |
| CN105801991A (en) * | 2014-12-31 | 2016-07-27 | 上海长园电子材料有限公司 | Halogen-free heat shrinkable casing pipe and preparation method thereof |
| CN105175897A (en) * | 2015-10-16 | 2015-12-23 | 太仓市晨洲塑业有限公司 | High-intensity low-density polyethylene sub-pipe |
| CN105860229A (en) * | 2016-06-15 | 2016-08-17 | 潘海云 | Core-layer foamed composite tubular product and preparation process thereof |
| CN106046520A (en) * | 2016-07-21 | 2016-10-26 | 芜湖顺成电子有限公司 | Low-smoke zero-halogen flame-retardant cable material |
| CN106317590A (en) * | 2016-08-18 | 2017-01-11 | 苏州泰斯拓伟机电设备有限公司 | Alumina ceramic electrical stress control heat-shrinkable tube and preparation method thereof |
| CN106317591A (en) * | 2016-08-18 | 2017-01-11 | 苏州泰斯拓伟机电设备有限公司 | Magnetic conductive heat shrink tube and preparation method thereof |
| CN106317592A (en) * | 2016-08-18 | 2017-01-11 | 苏州泰斯拓伟机电设备有限公司 | Halogen-free flame-retardant thermal shrinkage pipe for nuclear power plant and preparation method thereof |
| CN106496758A (en) * | 2016-11-08 | 2017-03-15 | 长园集团股份有限公司 | A kind of three generations's nuclear power halogen-free non-red-phosphorus flame-retardant thermal shrinkable tube and preparation method thereof |
| CN106496758B (en) * | 2016-11-08 | 2019-01-29 | 长园电子（集团）有限公司 | A kind of three generations's nuclear power halogen-free non-red-phosphorus flame-retardant thermal shrinkable tube and preparation method thereof |
| CN108239330A (en) * | 2016-12-27 | 2018-07-03 | 上海凯波特种电缆料厂有限公司 | A kind of automotive line irradiated crosslinking low-smoke and halogen-free flame retardant material and preparation method thereof |
| CN108239330B (en) * | 2016-12-27 | 2020-09-15 | 上海凯波特种电缆料厂有限公司 | Irradiation crosslinking low-smoke halogen-free flame retardant for automobile wire and preparation method thereof |
| WO2018195756A1 (en) * | 2017-04-25 | 2018-11-01 | 南通大学 | Test tube stand and receiving plate unit with magnetic base used for super clean bench |
| WO2018213952A1 (en) * | 2017-05-20 | 2018-11-29 | 南通大学 | Sterilization tray and storage tray having a magnetic base for clean bench |
| CN107793689A (en) * | 2017-11-01 | 2018-03-13 | 深圳市沃尔核材股份有限公司 | A kind of high temperature tear-proof pyrocondensation bus-bar protective sleeve material prescription and its production method |
| CN107987486A (en) * | 2017-11-08 | 2018-05-04 | 江阴凯博通信科技有限公司 | On-deformable PE sheaths |
| CN109705440A (en) * | 2018-01-30 | 2019-05-03 | 扬州辐照中心 | A kind of preparation method of halogen-free flameproof Special busbar connector box |
| CN110577695A (en) * | 2018-06-07 | 2019-12-17 | 苏州市飞博冷热缩制品有限公司 | material formula and manufacturing process of flame-retardant high-polymer heat-shrinkable high-voltage insulating sleeve |
| CN109438928A (en) * | 2018-10-09 | 2019-03-08 | 江阴凯博通信科技有限公司 | Low smoke halogen-free sheath material and its production technology |
| CN109354751A (en) * | 2018-11-20 | 2019-02-19 | 上海长园电子材料有限公司 | A kind of thermally conductive, insulation, anti-sticking anti-heat ageing heat-shrink tube and preparation method thereof |
| CN112812416A (en) * | 2021-01-06 | 2021-05-18 | 长园电子（东莞）有限公司 | Semi-hard halogen-free red phosphorus-free flame-retardant heat-shrinkable tubing and preparation method thereof |
| CN112961426A (en) * | 2021-03-02 | 2021-06-15 | 长园电子（东莞）有限公司 | Polyolefin heat-shrinkable tube and preparation method thereof |
| CN113292784A (en) * | 2021-06-29 | 2021-08-24 | 上海长园电子材料有限公司 | Formula, preparation method, product and test method of high-rate heat-shrinkable tubing |
| CN115286864A (en) * | 2022-09-08 | 2022-11-04 | 苏州通优新材料科技有限公司 | Irradiation crosslinking polyolefin heat-shrinkable tube material and preparation method and application thereof |
| CN115286864B (en) * | 2022-09-08 | 2024-04-16 | 苏州通优新材料科技有限公司 | Irradiation crosslinking polyolefin heat shrinkage tube material and preparation method and application thereof |
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