CN105968533A - PE sheath and preparation method thereof - Google Patents
PE sheath and preparation method thereof Download PDFInfo
- Publication number
- CN105968533A CN105968533A CN201610514864.4A CN201610514864A CN105968533A CN 105968533 A CN105968533 A CN 105968533A CN 201610514864 A CN201610514864 A CN 201610514864A CN 105968533 A CN105968533 A CN 105968533A
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- CN
- China
- Prior art keywords
- parts
- sheath
- carbon black
- titanium dioxide
- raw material
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L23/06—Polyethene
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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
- B29C48/92—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
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a PE sheath and a preparation method thereof. The PE sheath comprises raw materials of PE, antioxygen CA, white oil, carbon black, EVA, antioxygen DLTP, red phosphorus, nickel powder, titanium dioxide and phthalocyanine blue. A product has the characteristics that the environmental stress cracking resistance is 500-600h, the tensile strength is 20-24MPa, the elongation is 720-740%, the dielectric constant is 2.8, the dielectric strength is 31mV/m, and the melt index is 0.3-0.5g/10min. The PE sheath can resist low-temperature impact, is simple in preparation method and can bear a low temperature of 80 DEG C; in addition, the raw materials are easy to obtain.
Description
Technical field
The present invention relates to PE field of material technology, particularly relate to a kind of PE sheath and preparation method thereof.
Background technology
Polyethylene (polyethylene is called for short PE) is the aggregated prepared a kind of thermoplastic resin of ethylene.Industrially, the copolymer of ethylene and a small amount of alpha-olefin is also included.Polyethylene odorless, nontoxic, feel ceraceous, there is excellent resistance to low temperature (minimum use temperature up to-100 ~-70 ° of C), chemical stability is good, is resistant to the erosion (being weak to the acid with oxidizing property) of most of soda acid.Insoluble in common solvent under room temperature, water absorption is little, and electrical insulating property is excellent.
It it is the polymer with vinyl monomer polymerization.Polyethylene is to be synthesized by Britain ICI nineteen twenty-two, nineteen thirty-nine starts commercial production, produce in United States Non-Provisional industrialness, Great War is important radar insulant and military supplies articles for use, after the war, Mitsui petrochemistry, Sumitomo Chemical (1958) start formal production, and within 1975 14 years, factory produces 140.7 ten thousand tons per year, is only second to the U.S..
The performance of polyethylene depends on its polymerization methods.That carry out under middle pressure (15-30 atmospheric pressure) organic compound catalytic condition that Ziegler-Natta is polymerized is high density polyethylene (HDPE) (HDPE).Under the conditions of this, the polyethylene molecule of polymerization is linear, and strand is the longest, and molecular weight is up to hundreds of thousands.If in high pressure (100-300MPa), high temperature (190 210C), radical polymerization under the conditions of peroxide catalyzed, that produce is then Low Density Polyethylene (LDPE), and it is side chain chemical combination structure.
LLDPE application has penetrated into all LDPE market the most.Present stage LLDPE and HDPE is in the stage of growth of life cycle；LDPE then progresses into the full-fledged phase in 1980 generation ends, and the rarest LDPE equipment is gone into operation.Polyethylene can be with extruding, inject, mold, be blow molded and the method molding such as melt-spun, it is widely used in industry, agricultural, packaging and daily industry, in China, application is the most extensive, thin film is the user of its maximum, about consumption Low Density Polyethylene 77%, the 18% of high density polyethylene (HDPE), additionally, injection-molded item, electric wire, hollow product etc. all occupy bigger ratio in its consumption structure, occupy very important status in plastics industry.
Polythene material is difficult to printing (unless carrying out this modifies or surface modification), therefore is colourless or light color article mostly, has good resistance to environmental aging performance due to it the most again, and the artificial turf on sports ground is manufactured by polyethylene mostly.Simplest discrimination method lights a fritter sample, sample meeting sustained combustion with gas burner (such as lighter) exactly, has cigarette, and has the taste burning wax candle.With fingernail the most standardized under, have cut for Low Density Polyethylene (LDPE), the most then be high density polyethylene (HDPE) (HDPE).
Polyethylene is typical thermoplastic, is odorless, tasteless, nontoxic flammable white powder.The PE resin of processing and forming is all the wax-like particulate material of extruded pelletize, and outward appearance is creamy white.Its molecular weight is in the range of 10,000 one loa ten thousand.Molecular weight is then ultra-high molecular weight polyethylene f UHMWPE3 more than 100,000.Molecular weight is the highest, and its physical and mechanical property is the best, closer to the requirement level of engineering material.But molecular weight is the highest, the difficulty of its processing increases the most therewith.Polyethylene fusing point is that its resistance to low temperature of 100-130C is excellent.At-60 DEG C, still can keep good mechanical property, but use temperature at 80 ~ 110 DEG C.
Summary of the invention
The present invention provides PE sheath that a kind of hot strength is high, percentage elongation high and tearing strength is high and preparation method thereof, solves existing PE Materials Fracture percentage elongation and the technical problem such as hot strength is low.
The present invention is by the following technical solutions: a kind of PE sheath, it is as follows that mass fraction proportioning pressed by its raw material: PE100 part, antioxidant CA 0.1-0.5 part, white oil 0.3-0.5 part, white carbon black 1.5-2.5 part, EVA5-7 part, anti-oxidant DLTP is 0.05-0.25 part, red phosphorus 7-9 part, nikel powder 5-15 part, titanium dioxide 10-20 part, phthalocyanine blue 0.3-0.7 part.
As a preferred technical solution of the present invention: it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.1 part, white oil 0.3 part, white carbon black 1.5 parts, EVA5 part, anti-oxidant DLTP is 0.05 part, 7 parts of red phosphorus, nikel powder 5 parts, titanium dioxide 10 parts, phthalocyanine blue 0.3 part.
As a preferred technical solution of the present invention: it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.5 part, white oil 0.5 part, white carbon black 2.5 parts, EVA7 part, anti-oxidant DLTP is 0.25 part, 9 parts of red phosphorus, nikel powder 15 parts, titanium dioxide 20 parts, phthalocyanine blue 0.7 part.
As a preferred technical solution of the present invention: it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.3 part, white oil 0.4 part, white carbon black 2 parts, EVA6 part, anti-oxidant DLTP is 0.15 part, 8 parts of red phosphorus, nikel powder 10 parts, titanium dioxide 15 parts, phthalocyanine blue 0.5 part.
A kind of method preparing described PE sheath, step is:
The first step: weigh PE, antioxidant CA, white oil, white carbon black, EVA, anti-oxidant DLTP, red phosphorus, nikel powder, titanium dioxide and phthalocyanine blue according to mass fraction proportioning；
Second step: put into by raw material in kneader, is warming up to 130-170 DEG C, mediates 20-30min；
3rd step: extrusion molding after kneading, extruder temperature 110 DEG C, 115 DEG C, 120 DEG C, 130 DEG C, 140 DEG C, 145 DEG C.
Beneficial effect
A kind of PE sheath of the present invention and preparation method thereof uses above technical scheme compared with prior art, has following technical effect that 1, product resisting environmental stress and cracking 500-600h, hot strength 20-24MPa；2, percentage elongation 720-740%, dielectric constant 2.8, dielectric strength 31mV/m；3, melt flow index 0.3-0.5g/10min, low-temperature impact-resistant, raw material is simple and easy to get, and preparation method is simple, resistance to-80 DEG C of low temperature, can be with the widespread production not division of history into periods for current material.
Detailed description of the invention
Below in conjunction with example, the invention will be further described, and embodiment is only used for that the present invention will be described, is not intended that the restriction to right, other alternative means that it may occur to persons skilled in the art that, the most within the scope of the invention as claimed.
Embodiment 1:
The first step: weighing PE100 part, antioxidant CA 0.1 part, white oil 0.3 part, white carbon black 1.5 parts, EVA5 part according to mass fraction proportioning, anti-oxidant DLTP is 0.05 part, 7 parts of red phosphorus, nikel powder 5 parts, titanium dioxide 10 parts, phthalocyanine blue 0.3 part.
Second step: put into by raw material in kneader, is warming up to 90 DEG C, mediates 20min.
3rd step: extrusion molding after kneading, extruder temperature 110 DEG C, 115 DEG C, 120 DEG C, 130 DEG C, 140 DEG C, 145 DEG C.
Product resisting environmental stress and cracking 500h, hot strength 20MPa；Percentage elongation 720%, dielectric constant 2.8, dielectric strength 31mV/m；Melt flow index 0.3g/10min, low-temperature impact-resistant, raw material is simple and easy to get, and preparation method is simple, resistance to-80 DEG C of low temperature.
Embodiment 2:
The first step: weighing PE100 part, antioxidant CA 0.5 part, white oil 0.5 part, white carbon black 2.5 parts, EVA7 part according to mass fraction proportioning, anti-oxidant DLTP is 0.25 part, 9 parts of red phosphorus, nikel powder 15 parts, titanium dioxide 20 parts, phthalocyanine blue 0.7 part.
Second step: put into by raw material in kneader, is warming up to 100 DEG C, mediates 30min.
3rd step: extrusion molding after kneading, extruder temperature 110 DEG C, 115 DEG C, 120 DEG C, 130 DEG C, 140 DEG C, 145 DEG C.
Product resisting environmental stress and cracking 550h, hot strength 22MPa；Percentage elongation 730%, dielectric constant 2.8, dielectric strength 31mV/m；Melt flow index 0.4g/10min, low-temperature impact-resistant, raw material is simple and easy to get, and preparation method is simple, resistance to-80 DEG C of low temperature.
Embodiment 3:
The first step: weighing PE100 part, antioxidant CA 0.3 part, white oil 0.4 part, white carbon black 2 parts, EVA6 part according to mass fraction proportioning, anti-oxidant DLTP is 0.15 part, 8 parts of red phosphorus, nikel powder 10 parts, titanium dioxide 15 parts, phthalocyanine blue 0.5 part.
Second step: put into by raw material in kneader, is warming up to 95 DEG C, mediates 25min.
3rd step: extrusion molding after kneading, extruder temperature 110 DEG C, 115 DEG C, 120 DEG C, 130 DEG C, 140 DEG C, 145 DEG C.
Product resisting environmental stress and cracking 600h, hot strength 24MPa；Percentage elongation 740%, dielectric constant 2.8, dielectric strength 31mV/m；Melt flow index 0.5g/10min, low-temperature impact-resistant, raw material is simple and easy to get, and preparation method is simple, resistance to-80 DEG C of low temperature.
Claims (5)
1. a PE sheath, it is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.1-0.5 part, white oil 0.3-0.5 part, white carbon black 1.5-2.5 part, EVA5-7 part, anti-oxidant DLTP is 0.05-0.25 part, red phosphorus 7-9 part, nikel powder 5-15 part, titanium dioxide 10-20 part, phthalocyanine blue 0.3-0.7 part.
A kind of PE sheath the most according to claim 1, it is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.1 part, white oil 0.3 part, white carbon black 1.5 parts, EVA5 part, anti-oxidant DLTP is 0.05 part, 7 parts of red phosphorus, nikel powder 5 parts, titanium dioxide 10 parts, phthalocyanine blue 0.3 part.
A kind of PE sheath the most according to claim 1, it is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.5 part, white oil 0.5 part, white carbon black 2.5 parts, EVA7 part, anti-oxidant DLTP is 0.25 part, 9 parts of red phosphorus, nikel powder 15 parts, titanium dioxide 20 parts, phthalocyanine blue 0.7 part.
A kind of PE sheath the most according to claim 1, it is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PE sheath: PE100 part, antioxidant CA 0.3 part, white oil 0.4 part, white carbon black 2 parts, EVA6 part, anti-oxidant DLTP is 0.15 part, 8 parts of red phosphorus, nikel powder 10 parts, titanium dioxide 15 parts, phthalocyanine blue 0.5 part.
5. the method for the PE sheath that a kind is prepared described in claim 1, it is characterised in that comprise the steps:
The first step: weigh PE, antioxidant CA, white oil, white carbon black, EVA, anti-oxidant DLTP, red phosphorus, nikel powder, titanium dioxide and phthalocyanine blue according to mass fraction proportioning；
Second step: put into by raw material in kneader, is warming up to 90-100 DEG C, mediates 20-30min；
3rd step: extrusion molding after kneading, extruder temperature 110 DEG C, 115 DEG C, 120 DEG C, 130 DEG C, 140 DEG C, 145 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514864.4A CN105968533A (en) | 2016-07-04 | 2016-07-04 | PE sheath and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514864.4A CN105968533A (en) | 2016-07-04 | 2016-07-04 | PE sheath and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105968533A true CN105968533A (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610514864.4A Pending CN105968533A (en) | 2016-07-04 | 2016-07-04 | PE sheath and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105968533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115838505A (en) * | 2022-12-06 | 2023-03-24 | 深圳新联胜光电科技有限公司 | Polyethylene sheath material with thermal stability and application thereof in optical fiber cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336953A (en) * | 2011-08-16 | 2012-02-01 | 河北中联塑胶科技发展有限公司 | Environmentally-friendly low-smoke halogen-free flame-retardant photovoltaic cable insulation and sheath and preparation method thereof |
| CN102807693A (en) * | 2011-05-31 | 2012-12-05 | 江苏南方通信科技有限公司 | Sheath material for optical fiber cable, and production process thereof |
| CN103756117A (en) * | 2013-12-19 | 2014-04-30 | 安徽特力电缆有限公司 | Weather-proof and ozone-proof modified polyethylene cable sheath material |
| CN104829919A (en) * | 2015-04-23 | 2015-08-12 | 苏州圣利线缆有限公司 | PE sheath material for submarine cable and preparation method thereof |
-
2016
- 2016-07-04 CN CN201610514864.4A patent/CN105968533A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807693A (en) * | 2011-05-31 | 2012-12-05 | 江苏南方通信科技有限公司 | Sheath material for optical fiber cable, and production process thereof |
| CN102336953A (en) * | 2011-08-16 | 2012-02-01 | 河北中联塑胶科技发展有限公司 | Environmentally-friendly low-smoke halogen-free flame-retardant photovoltaic cable insulation and sheath and preparation method thereof |
| CN103756117A (en) * | 2013-12-19 | 2014-04-30 | 安徽特力电缆有限公司 | Weather-proof and ozone-proof modified polyethylene cable sheath material |
| CN104829919A (en) * | 2015-04-23 | 2015-08-12 | 苏州圣利线缆有限公司 | PE sheath material for submarine cable and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115838505A (en) * | 2022-12-06 | 2023-03-24 | 深圳新联胜光电科技有限公司 | Polyethylene sheath material with thermal stability and application thereof in optical fiber cable |
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Application publication date: 20160928 |
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