CN107573575A - A kind of method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE) - Google Patents
A kind of method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE) Download PDFInfo
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- CN107573575A CN107573575A CN201710815496.1A CN201710815496A CN107573575A CN 107573575 A CN107573575 A CN 107573575A CN 201710815496 A CN201710815496 A CN 201710815496A CN 107573575 A CN107573575 A CN 107573575A
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Abstract
A kind of method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE), it is related to the production technical field of electric wire, cable.There are two methods, method one is first granulated extrusion molding again；Two direct extrusion molding of method.Two various methods all employ thermoplastic elastomer (TPE), LLDPE, halogen-free flame retardants, lubricant, composite antioxidant, age resistor, coupling agent and sensitization crosslinking agent as insulating sheath raw material, in addition, also being irradiated semi-products.Two methods are environmentally safe during production, accumulating, use, harmless, will not produce pernicious gas during burning, be a kind of green products.It can also make cable that there is the performances such as well fire-retardant, mechanical, resistant to bending, insulation and heat-proof aging, disclosure satisfy that electric power standard demand.
Description
Technical field
The present invention relates to the production technical field of electric wire, cable.
Technical background
In many application scenarios, often require that electric wire or cable have good flexibility.In order to meet the requirement, commonly use
Rubber makees insulation and the sheath of electric wire.Rubber is that one kind has elastomeric material, but the processing technology of rubber compares
Complexity, equipment investment is big, the area of occupancy factory building is more, and many middle-size and small-size producers do not possess the ability of processing rubber cable.
Thermoplastic elastomer (TPE) emerged in multitude in recent years, and people can use the process equipment of cable in plastics cable, use
Thermoplastic elastomer (TPE) makees the insulation of cable, sheath, produces the product of softness same with rubber cable, and substantially reduces it and add
Work cost.There has been no the formula using thermoplastic elastomer (TPE) production traffic signals group cable or the reported in literature of technique at present.
The content of the invention
The purpose of the present invention is to propose to the method using thermoplastic elastomer (TPE) production traffic signals flexible cable, to submit communication
The performances such as the fire-retardant, mechanical, resistant to bending of number cable, insulation and heat-proof aging.
One of the inventive method is：First by thermoplastic elastomer (TPE), LLDPE, halogen-free flame retardants, lubricant,
After composite antioxidant, age resistor, coupling agent and sensitization crosslinking agent mixing, it is kneaded through double screw extruder and produces particle, then
Extrusion molding after heating particulates is coated on outside conductor again, obtains semi-products, then it is 30~150KGy that semi-products are placed in into irradiation dose
Under conditions of, it is cross-linked to form traffic signals flexible cable through electron accelerator irradiation.
The two of the inventive method are：By thermoplastic elastomer (TPE), LLDPE, halogen-free flame retardants, lubricant, multiple
After closing antioxidant, age resistor, coupling agent and sensitization crosslinking agent mixing, it is coated on outside conductor, is taken by double screw extruder extrusion molding
Semi-products are obtained, then semi-products are placed in irradiation dose under conditions of 30~150KGy, to be cross-linked to form through electron accelerator irradiation
Traffic signals flexible cable.
Both the above method of the present invention is a difference in that：Method one is first granulated extrusion molding again；And two direct extrusion molding of method.Phase
Thermoplastic elastomer (TPE), LLDPE, halogen-free flame retardants, lubricant, compound is all employed with, two various methods
Antioxidant, age resistor, coupling agent and sensitization crosslinking agent are as insulating sheath raw material, in addition, also being irradiated semi-products.
LLDPE has higher toughness and preferably heat-resisting, cold tolerance, is a kind of new electricity
Line cable material；Thermoplastic elastomer (TPE) begins to appear in domestic market recent years, is not obtained also extensively in electric wire at present
General application, the addition of thermoplastic elastomer (TPE), utilize the tridimensional network of itself, the mechanical property of reinforcing material and a raising
Bending resistance；Halogen-free flame retardants is a kind of environmentally friendly fire proofing, to environment in processing and follow-up use
Less pollution；It is conventional processing main frame in crosslinking experiments to be sensitized crosslinking agent；The processing aids such as lubricant are all electric wires
Deng the auxiliary agent being commonly used in macromolecule Product processing.
Electric wire irradiation in industrial production, the size of irradiation dose, is controlled by, therefore by exposure time
From saving and putting forward large-duty angle, we should test since relatively low-dose, explore and disappeared using low energy
Consumption obtains the flexible cable for meeting national standard quality requirement.
By both the above method, cable is environmentally safe during production, accumulating, use, harmless,
Pernicious gas will not be produced during burning, is a kind of green product.Can also make cable with it is good it is fire-retardant, mechanical,
The performance such as resistant to bending, insulation and heat-proof aging, disclosure satisfy that electric power standard demand.
Further, thermoplastic elastomer (TPE) of the present invention, LLDPE, halogen-free flame retardants, lubricant, multiple
The mass ratio that feeds intake for closing antioxidant, age resistor, coupling agent and sensitization crosslinking agent is 30~20: 70~80: 80~90: 3~4: 0.5
~1.5: 1~2: 0.5~1.5: 0.5~2.LLDPE is for providing a kind of macromolecule matrix, a small amount of heat
The addition of thermoplastic elastic, the three-dimensional netted of its own can be utilized, the raw materials such as LLDPE are distributed in netted
In structure, using this structure of macromolecular chain, cushioning effect is played during bending, therefore with preferably resistant to bending anti-
Impact property；Halogen-free flame retardants, it is a kind of environmentally friendly material, appropriate addition can play flame retardant effect, substantial amounts of to add
Enter, inorganic phase is mutually incompatible with resin, causes the decline of mechanical property, therefore wants many experiments, chooses a moderate value；Lubrication
The processing aids such as agent, composite antioxidant, age resistor, coupling agent and sensitization crosslinking agent typically add micro, a large amount of addition meetings
There is suppression, cause combination property to decline.
The melt index of thermoplastic elastomer (TPE) of the present invention is 1g/10min.It has good resisting environmental stress and cracking
Property, with filler compatibility and processability.
The melt index of LLDPE of the present invention is 2g/10min.In the resin of the melt index or so
Flexible cable mechanical property requirements are met, flowability properties are good, are easy to process, and improve production efficiency.
Halogen-free flame retardants of the present invention is by aluminium hydroxide, expanding fire retardant, microencapsulated powder oil and organo montmorillonite group
Into.The fire retardant additive without halogen of the present invention is mainly based on nitrogen, phosphorus series compound and metal hydroxides, this three classes compound,
It is non-volatile during burning, do not produce corrosive gas, be referred to as nuisanceless fire retardant.Therefore it can ensure that production process is environmentally friendly.
The particle diameter of aluminium hydroxide of the present invention is 5000 mesh.The smaller aluminium hydroxide of particle diameter can improve the component and tree
The compatible degree of lipid phase, ensure mechanical property, but during particle diameter more than 5000 mesh, the notable trend of the raising of mechanical property is just
Reduce, and production cost increase.
The lubricant is white oil or stearic acid.There is the advantage in price compared to traditional lubricant.
The sensitization crosslinking agent is Triallyl isocyanurate, is chiefly to facilitate friendship of the product under electron beam irradiation
Connection, improve cable production efficiency.
Embodiment
First, production technology
The explanation of each raw material in following examples：
Polyolefin-type thermoplastic elastomer (TPE)（TPE）, melt index 1g/10min.
LLDPE（LLDPE）Using Shanghai match section LL0220KJ, melt index 2g/10min.
Aluminium hydroxide of the halogen-free flame retardants by particle diameter for 5000 mesh（ATH）, expanding fire retardant（NPS）, microencapsulated powder oil
（CRP）, organo montmorillonite（OMMT）Composition.
POE-MA is commercially available coupling agent.
Composite antioxidant is made up of primary antioxidant 1010 and auxiliary antioxidant 168.
White oil, stearic acid are lubricant.
Sensitization crosslinking agent is Triallyl isocyanurate（TAIC）.
1st, according to the form below weighs respectively：
Weighed in parts by weight in each example.
| Raw material | Example 1 | Example 2 | Example 3 |
| TPE | 30 | 25 | 20 |
| LLDPE | 70 | 75 | 80 |
| ATH | 45 | 50 | 50 |
| OMMT | 15 | 15 | 15 |
| NPS | 15 | 15 | 20 |
| CRP | 5 | 5 | 5 |
| POE-MA | 1 | 1 | 1.5 |
| Primary antioxidant 1010 | 0.5 | 1 | 1 |
| Auxiliary antioxidant 168 | 0.5 | 0.5 | 0.5 |
| White oil or stearic acid | 3 | 3.5 | 3 |
| TAIC | 0.5 | 105 | 1.5 |
| Antioxidant MB | 1 | 0.5 | 0.5 |
2nd, cable is produced：
Method one：
After each raw material of the formula ratio of example 1 is mixed, it is kneaded through double screw extruder and produces particle, then again by after heating particulates
Extrusion molding is coated on outside conductor, obtains semi-products, then semi-products are placed in into irradiation dose under conditions of 30~150KGy, through electricity
Sub- accelerator cross-linking radiation forms traffic signals flexible cable.
Method two：
After each raw material of formula ratio of example 2,3 is mixed respectively, it is coated on by double screw extruder extrusion molding outside conductor, obtains half and make
Product, then semi-products are placed in irradiation dose under conditions of 30~150KGy, to be formed and being handed over respectively through electron accelerator irradiation crosslinking
Messenger flexible cable.
2nd, the product main performance index of above-mentioned technique productions is as follows：
Three kinds of traffic signals flexible cable samplings made from above method are detected respectively, and carried out with national standard product mark standard
Contrast, as a result see the table below：
| Sequence number | Project | Unit | Index | Actual measurement |
| 1 | Green tensile intensity | MPa | ≥9.0 | 12.3 |
| 2 | Original broken elongation | % | ≥150 | 210 |
| 3 | Air heat ageing（100℃×168h） | |||
| Tensile strength | MPa | ≥9.0 | 12.1 | |
| 4 | Air heat ageing（100℃×168h） | |||
| Elongation at break | % | ≥120 | 215 | |
| 5 | Thermal deformation（90℃×4h） | % | ≤50 | 0 |
| 6 | Specific insulation（20℃） | Ω•M | ≥1.0×1010 | 5.5×1011 |
| 7 | Oxygen index (OI) | % | ≥30 | 32 |
The thick dumbbell shape prints of 1mm are cut in addition, and testing 180 ° by rubber fatigue testing machine bends 800,000 times（60h）, bending
Sample testing mechanical property afterwards, tensile strength and elongation at break have higher bending resistance without significant change, the material
Folding endurance energy.
As seen from the above table：The product of the more conventional technique productions of product made of the present invention have obvious good fire-retardant, machine
The performance such as tool, insulation, wear-resisting, heat-proof aging.
Claims (9)
- A kind of 1. method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE), it is characterised in that：First by thermoplastic elastic Body, LLDPE, halogen-free flame retardants, lubricant, composite antioxidant, age resistor, coupling agent and sensitization crosslinking agent mix After conjunction, it is kneaded through double screw extruder and produces particle, then extrusion molding after heating particulates is coated on outside conductor again, is obtained half and make Product, then semi-products are placed in irradiation dose as under conditions of 30~150KGy, traffic letter is cross-linked to form through electron accelerator irradiation Number flexible cable.
- A kind of 2. method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE), it is characterised in that：By thermoplastic elastomer (TPE), LLDPE, halogen-free flame retardants, lubricant, composite antioxidant, age resistor, coupling agent and sensitization crosslinking agent mixing Afterwards, be coated on by double screw extruder extrusion molding outside conductor, obtain semi-products, then by semi-products be placed in irradiation dose for 30~ Under conditions of 150KGy, traffic signals flexible cable is cross-linked to form through electron accelerator irradiation.
- 3. method according to claim 1 or 2, it is characterised in that：The thermoplastic elastomer (TPE), linear low density polyethylene Alkene, halogen-free flame retardants, lubricant, composite antioxidant, age resistor, the mass ratio that feeds intake of coupling agent and sensitization crosslinking agent is 30~20 : 70~80: 80~90: 3~4: 0.5~1.5: 1~2: 0.5~1.5: 0.5~2.
- 4. according to the method for claim 3, it is characterised in that：The melt index of the thermoplastic elastomer (TPE) is 1g/ 10min。
- 5. according to the method for claim 3, it is characterised in that：The melt index of the LLDPE is 2g/ 10min。
- 6. according to the method for claim 3, it is characterised in that：The halogen-free flame retardants by aluminium hydroxide, expanding fire retardant, Microencapsulated powder oil and organo montmorillonite composition.
- 7. according to the method for claim 6, it is characterised in that：The particle diameter of the aluminium hydroxide is 5000 mesh.
- 8. according to the method for claim 3, it is characterised in that：The lubricant is white oil or stearic acid.
- 9. according to the method for claim 3, it is characterised in that：The sensitization crosslinking agent is Triallyl isocyanurate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710815496.1A CN107573575A (en) | 2017-09-12 | 2017-09-12 | A kind of method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE) |
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| CN201710815496.1A CN107573575A (en) | 2017-09-12 | 2017-09-12 | A kind of method that traffic signals flexible cable is produced using thermoplastic elastomer (TPE) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323897A (en) * | 2018-09-27 | 2019-02-12 | 安徽滁州德威新材料有限公司 | A kind of CABLE MATERIALS 1024 test piece of antioxidant and its assessment experimental method |
| CN112500632A (en) * | 2020-12-01 | 2021-03-16 | 天长市富信电子有限公司 | Production process of aging-resistant signal wire |
| CN115433400A (en) * | 2022-07-25 | 2022-12-06 | 广东金阳光电缆实业有限公司 | Process for producing halogen-free flame-retardant cable |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206356A (en) * | 2015-09-25 | 2015-12-30 | 桐乡市新艺虹电气有限公司 | Production method of halogen-free flame-retardant electric wire |
-
2017
- 2017-09-12 CN CN201710815496.1A patent/CN107573575A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206356A (en) * | 2015-09-25 | 2015-12-30 | 桐乡市新艺虹电气有限公司 | Production method of halogen-free flame-retardant electric wire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323897A (en) * | 2018-09-27 | 2019-02-12 | 安徽滁州德威新材料有限公司 | A kind of CABLE MATERIALS 1024 test piece of antioxidant and its assessment experimental method |
| CN112500632A (en) * | 2020-12-01 | 2021-03-16 | 天长市富信电子有限公司 | Production process of aging-resistant signal wire |
| CN115433400A (en) * | 2022-07-25 | 2022-12-06 | 广东金阳光电缆实业有限公司 | Process for producing halogen-free flame-retardant cable |
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Application publication date: 20180112 |