CN101320602B - Modified PE sheath for cold resistant cable, insulation material and manufacturing method thereof - Google Patents
Modified PE sheath for cold resistant cable, insulation material and manufacturing method thereof Download PDFInfo
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- CN101320602B CN101320602B CN2008101232231A CN200810123223A CN101320602B CN 101320602 B CN101320602 B CN 101320602B CN 2008101232231 A CN2008101232231 A CN 2008101232231A CN 200810123223 A CN200810123223 A CN 200810123223A CN 101320602 B CN101320602 B CN 101320602B
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- resistant cable
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Abstract
The invention discloses a modified PE sheath and insulation material for cold resistant cables and belongs to the technology field of the cable material, which consists of a low density polyethylene, a linear low density polyethylene, acetate-vinyl acetate copolymer, an antistatic agent HDC-103, a quadric-propyal-pentaerythritol lipid 1010, calcium AD, polyethylene wax, barium stearate, titanate GT-114, magnesium hydroxide and zinc stearate, thereby improving the environmental stress cracking resistant performance of polyethylene. The modified PE sheath and the insulation material have the advantages of cold resistance, being not easy cracking, not decomposing when wet and the good flexibility.
Description
Technical field
The present invention relates to the cable material technical field, refer in particular to the modified PE sheath or the insulating material that use on a kind of cold resistant cable.
Background technology
In the cable industry, common polythene is conventional sheath, insulating material, but because common polythene is under cryogenic conditions, has anti-stress difference, ftracture easily, problems such as pliability is not enough, can't be applied in the environment that some temperature is lower or temperature difference condition is relatively large, at present, the cable that in these environment, uses, usually adopt rubber to make sheath or insulating material, but the rubber smell is big, and environment is had pollution, for reaching same abrasion resistance, rubber consumption is big during manufacturing, the cost height, in addition, in long-term the use, the easy copper oxide wire of rubber influences the electric conductivity of cable; Also useful PETP (elastomer PE) is as sheath, the insulating material of cold resistant cable, though it can overcome the anti-stress and the pliability problem of common polythene material, its dielectric property are general, meets the water material and can decompose, and influences cable life.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency, provide a kind of anti-stress effect good, not easy to crack, meet water does not decompose and pliability is good modified PE sheath for cold resistant cable or insulating material, main innovation is that material is major ingredient with the polyethylene, refer and synthesize LLDPE and ethylene-vinyl acetate copolymer (EVA5/0.3), be equipped with other additive again, improved poly environmental stress cracking resistance greatly.Specifically implement like this: modified PE sheath for cold resistant cable or insulating material is characterized in that the percentage by weight of each component is:
Low density polyethylene (LDPE) 0.910～0.925g/cm
370-90%
LLDPE 0.910～0.925g/cm
310-30%
Add:
Ethylene-vinyl acetate copolymer EVA5/0.3 0.5-1%
Antistatic agent HDC-103 0.1-0.3%
4 third pentaerythritol resins, 1010 0.1-0.5%
Calcium AD 10-20%
Tissuemat E molecular weight 1000～10000 1-5%
Barium stearate relative density 2.42 0.1-1%
Titanate esters GT-1141250 order 0.1-0.5%
Magnesium hydroxide 3-7%
Zinc stearate 0.1-1%
Also can add color masterbatch outward in this prescription, its outer addition is the 2-3% of low density polyethylene (LDPE) and LLDPE total weight.
In this prescription, 4 third pentaerythritol resins 1010 are made antioxidant, can eliminate the peroxidating free radical that generates in the oxidation reaction, reduction alkoxyl or alkyl free radical, and decompose hydroperoxide, thereby oxidative chain reactions is stopped, to reach the purpose that prevents the polymer deterioration by oxidation; Calcium AD makes filler; Tissuemat E is made lubricant, and having reduced rubs examines effect and the plastics adhesion to the process equipment metal surface, also reduces the sassafras that rubs between the resin particle and between the big molecule of fusing back resin in the resin fusion process and gives birth to thermal effect; The barium stearate used as stabilizers can suppress degraded and variable color that polyvinyl resin causes owing to heat, light action in processing and use; Titanate esters GT-114 makes coupling agent; Magnesium hydroxide is made auxiliary flame retardant, makes the temperature rising of material that difficulty take place; Zinc stearate is done the opening agent, and material is peeled off from copper wire easily.
The manufacture method of this modified PE sheath for cold resistant cable or insulating material is, with the mixing back of above-mentioned each powder extrusion molding, pelletizing.
Mixing is to put above-mentioned each component except that coupling agent into mixer by proportioning, mixes more than five minutes, adds coupling agent, mixes to touch the no powder in back to hand and glue hand again.
During extrusion molding, plastic extruding machine is respectively distinguished temperature and is respectively: 180 ± 10 ℃ in a district, 190 ± 10 ℃ in two districts, 200 ± 10 ℃ in three districts, 210 ± 10 ℃ in four districts, 220 ± 10 ℃ in five districts, 230 ± 10 ℃ in six districts, 240 ± 10 ℃ in seven districts, 260 ± 10 ℃ in eight districts, 250 ± 10 ℃ of die heads.
Poly water-tolerant, water absorption rate is extremely low, itself just has good hydrolytic resistance energy, refer and synthesize LLDPE and ethylene-vinyl acetate copolymer again, be equipped with various additives, improved poly environmental stress cracking resistance, this modified PE sheath or the insulating material that produce have advantages such as cold-resistant, not easy to crack, that chance water does not decompose, pliability is good.
Embodiment
Embodiment 1, modified PE sheath for cold resistant cable or insulating material, and the percentage by weight of each component is:
Low density polyethylene (LDPE) 0.910～0.925g/cm
370%
LLDPE 0.910～0.925g/cm
330%
Add:
Ethylene-vinyl acetate copolymer EVA5/0.3 0.5%
Antistatic agent HDC-103 0.2%
4 third pentaerythritol resins 1,010 0.5%
Calcium AD 15%
Tissuemat E molecular weight 1000～10,000 3%
Barium stearate relative density 2.42 1%
Titanate esters GT-1141250 order 0.2%
Magnesium hydroxide 3%
Zinc stearate 0.1%
Color masterbatch 3%
The manufacture method of modified PE sheath for cold resistant cable or insulating material, put above-mentioned each powder other component except that coupling agent titanate esters GT-114 into mixer by proportioning, mix more than five minutes, add coupling agent, mix again and touch the no powder in back to hand and glue hand, mixing end back extrusion molding, pelletizing, during extrusion molding, plastic extruding machine is respectively distinguished temperature and is respectively: 180 ± 10 ℃ in a district, 190 ± 10 ℃ in two districts, 200 ± 10 ℃ in three districts, 210 ± 10 ℃ in four districts, 220 ± 10 ℃ in five districts, 230 ± 10 ℃ in six districts, 240 ± 10 ℃ in seven districts, 260 ± 10 ℃ in eight districts, 250 ± 10 ℃ of die heads.
Embodiment 2, modified PE sheath for cold resistant cable or insulating material, and the percentage by weight of each component is:
Low density polyethylene (LDPE) 0.910～0.925g/cm
380%
LLDPE 0.910～0.925g/cm
320%
Add:
Ethylene-vinyl acetate copolymer EVA5/0.3 0.8%
Antistatic agent HDC-103 0.3%
4 third pentaerythritol resins 1,010 0.4%
Calcium AD 10%
Tissuemat E molecular weight 1000～10,000 5%
Barium stearate relative density 2.42 0.8%
Titanate esters GT-1141250 order 0.5%
Magnesium hydroxide 5%
Zinc stearate 0.5%
Color masterbatch 2%
Manufacture method reference example 1.
Embodiment 3, modified PE sheath for cold resistant cable or insulating material, and the percentage by weight of each component is:
Low density polyethylene (LDPE) 0.910～0.925g/cm
390%
LLDPE 0.910～0.925g/cm
310%
Add:
Ethylene-vinyl acetate copolymer EVA5/0.3 1%
Antistatic agent HDC-103 0.2%
4 third pentaerythritol resins 1,010 0.2%
Calcium AD 18%
Tissuemat E molecular weight 1000～10,000 1%
Barium stearate relative density 2.42 0.1%
Titanate esters GT-1141250 order 0.1%
Magnesium hydroxide 7%
Zinc stearate 0.7%
Color masterbatch 2.5%
Manufacture method reference example 1.
Embodiment 4, modified PE sheath for cold resistant cable or insulating material, and the percentage by weight of each component is:
Low density polyethylene (LDPE) 0.910～0.925g/cm
385%
LLDPE 0.910～0.925g/cm
315%
Add:
Ethylene-vinyl acetate copolymer EVA5/0.3 0.9%
Antistatic agent HDC-103 0.1%
4 third pentaerythritol resins 1,010 0.1%
Calcium AD 20%
Tissuemat E molecular weight 1000～10,000 4%
Barium stearate relative density 2.42 0.5%
Titanate esters GT-1141250 order 0.4%
Magnesium hydroxide 6%
Zinc stearate 1%
Manufacture method reference example 1.
Claims (4)
1. modified PE sheath for cold resistant cable or insulating material is characterized in that the percentage by weight of each component is:
Low density polyethylene (LDPE) 0.910～0.925g/cm
370-90%
LLDPE 0.910～0.925g/cm
310-30%
Add:
Ethylene-vinyl acetate copolymer EVA5/0.3 0.5-1%
Antistatic agent HDC-103 0.1-0.3%
4 third pentaerythritol resins, 1010 0.1-0.5%
Calcium AD 10-20%
Tissuemat E molecular weight 1000～10000 1-5%
Barium stearate relative density 2.42 0.1-1%
Titanate esters GT-114 1250 order 0.1-0.5%
Magnesium hydroxide 3-7%
Zinc stearate 0.1-1%.
2. modified PE sheath for cold resistant cable according to claim 1 or insulating material is characterized in that the prescription China and foreign countries are added with color masterbatch, and addition is the 2-3% of low density polyethylene (LDPE) and LLDPE total weight.
3. the manufacture method of modified PE sheath for cold resistant cable or insulating material, it is characterized in that by claim 1 or 2 described each components prescriptions mixing afterwards extrusion molding, pelletizing, described mixing be to put the each component except that titanate esters GT-114 into mixer by proportioning, mix more than five minutes, add titanate esters GT-114, mix again and touch the no powder in back to hand and glue hand.
4. manufacture method according to claim 3, when it is characterized in that extrusion molding, plastic extruding machine is respectively distinguished temperature and is respectively: 180 ± 10 ℃ in a district, 190 ± 10 ℃ in two districts, 200 ± 10 ℃ in three districts, 210 ± 10 ℃ in four districts, 220 ± 10 ℃ in five districts, 230 ± 10 ℃ in six districts, 240 ± 10 ℃ in seven districts, 260 ± 10 ℃ in eight districts, 250 ± 10 ℃ of die heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101232231A CN101320602B (en) | 2008-06-13 | 2008-06-13 | Modified PE sheath for cold resistant cable, insulation material and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101232231A CN101320602B (en) | 2008-06-13 | 2008-06-13 | Modified PE sheath for cold resistant cable, insulation material and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101320602A CN101320602A (en) | 2008-12-10 |
| CN101320602B true CN101320602B (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101232231A Expired - Fee Related CN101320602B (en) | 2008-06-13 | 2008-06-13 | Modified PE sheath for cold resistant cable, insulation material and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101320602B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492554B (en) * | 2009-01-23 | 2011-04-27 | 同济大学 | Environment friendly ant-proof mouse-proof cable sheath material and preparation method thereof |
| CN102324274A (en) * | 2011-07-20 | 2012-01-18 | 广东中德电缆有限公司 | Strong-overload super-flexible crosslinked environment-friendly cable |
| CN103325489B (en) * | 2013-07-01 | 2015-05-13 | 中利科技集团股份有限公司 | Lightning protected cable for communication base station |
| CN103554615A (en) * | 2013-10-31 | 2014-02-05 | 合肥得润电子器件有限公司 | Weather-proof and damp-proof polyethylene insulating material for wire harnesses of communication equipment |
| 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 |
| CN114561054B (en) * | 2022-02-24 | 2023-10-31 | 金发科技股份有限公司 | Oil-resistant non-crosslinked polyethylene material, and preparation and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237770A (en) * | 1998-05-12 | 1999-12-08 | 罗超华 | Formula of plastic elastomeric insulating material for irradiation cross-linked wire and cable |
| CN1092388C (en) * | 1996-10-19 | 2002-10-09 | 中国科学院近代物理研究所 | 10 KV grade irradiation AC. power cable insulation layer and preparation method thereof |
-
2008
- 2008-06-13 CN CN2008101232231A patent/CN101320602B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092388C (en) * | 1996-10-19 | 2002-10-09 | 中国科学院近代物理研究所 | 10 KV grade irradiation AC. power cable insulation layer and preparation method thereof |
| CN1237770A (en) * | 1998-05-12 | 1999-12-08 | 罗超华 | Formula of plastic elastomeric insulating material for irradiation cross-linked wire and cable |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2000-34368A 2000.02.02 |
| JP特开平5-266723A 1993.10.15 |
| JP特开平8-319381A 1996.12.03 |
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| CN101320602A (en) | 2008-12-10 |
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