CN106046751A - Anti-ultraviolet cracking-resistant cable material for locomotive - Google Patents

Abstract

The invention discloses an anti-ultraviolet cracking-resistant cable material for a locomotive. The cable material is prepared from, by weight, 2.3-3 parts of triethanolamine borate, 0.3-0.4 part of emulsifier OP-10, 44-49 parts of thermoplastic polyurethane elastomer, 6-8 parts of tin-bismuth alloy powder, 26-33 parts of polypropylene, 5-7 parts of fatty acid, 2-3 parts of microcrystalline wax, 5-6 parts of barium sulfate, 3-5 parts of organic heavy calcium, 6-8 parts of white carbon black, 3-4 parts of potassium titanate crystal whisker, 0.4-0.5 part of cross linking agent TAC, 2-3 OBS organic stabilizer, 28-35 parts of polylactic acid and a proper amount of deionized water. The cable material is high in strength, insulating, tearing-resistant and high in elongation rate, can meet using needs of locomotive cables and is long in service life and worthy of popularization.

Description

A kind of locomotive UV resistance crack resistance type cable material

Technical field

The present invention relates to cable material technical field, particularly relate to a kind of locomotive UV resistance crack resistance type cable material.

Background technology

Polymer owing to it is cheap, quality is light, specific strength is big, the feature quilts such as heat conductivity is little and chemical stability is good It is widely used in the every field of productive life.Most polymer is all good electrical insulator, and resistivity is high, easily Produce electrostatic, thus limit its application.Anlistatig harm is increasing, such as the normal operation of countermeasure aircraft radio, Affect the operation of aircraft, pharmaceutical factory's device aggregation beyond the region of objective existence shell easy Electrostatic Absorption dust, affect medicine purity etc., in recent years, state Family's railway traffic quickly grows, and the control of the railway system becomes increasingly complex, and electrical control equipment gets more and more, to cabling requirements amount The most increasing.Wherein antistatic behaviour seems and is even more important.

In " preparation of conduction/anti-electrostatic polymer nano composite material and performance study thereof " literary composition, author utilizes low melting point The conductive filler such as metal, CNT prepares conductive anti-static polymer composites and fiber, it is proposed that new preparation Method and new principle, the low-melting-point metal use electrical conductivity height, easily processing is as conductive filler, by melt blending and solid phase The methods such as stretching, prepare composite fibre, show that polymer/low melting point conducting metal composite fibre has resistivity along with stretching The raising of multiplying power and the character that reduces, compare with the composite fibre not containing low conduction melting-point fibers, the intensity of its composite fibre All increase with elongation at break.Metal is significantly reduced by interpolation CNT and nano imvite in composite fibre Grain diameter so that composite fibre obtains more excellent electrical property and mechanical property.Although the present invention can solve the problem that cable The requirement of the aspects such as conductive anti-static, but it is as the development of locomotive technology, laying environment and the serviceability requirement to cable More and more higher, simple single performance can not meet the market demand, and the present invention improves on the basis of this, to reaching resistance to Good bending property, fire protection flame retarding, environmental protection, ageing-resistant etc. characteristic so that it is reach in railway engineering the use to cable and want Ask.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of locomotive UV resistance crack resistance type cable material Material.

The present invention is achieved by the following technical solutions:

A kind of locomotive UV resistance crack resistance type cable material, is made up of the raw material of following weight portion: triethanolamine borate 2.3-3, emulsifier op-10 0.3-0.4, Polyurethane Thermoplastic Elastomer 44-49, sn-bi alloy powder 6-8, polypropylene 26-33, Fatty acid 5-7, microwax 2-3, barium sulfate 5-6, organic triple superphosphate 3-5, white carbon 6-8, potassium titanate crystal whisker 3-4, cross-linking agent TAC0.4-0.5, OBS organic stabilizer 2-3, polylactic acid 28-35, deionized water are appropriate.

Described a kind of locomotive UV resistance crack resistance type cable material, is made up of step in detail below:

(1) heat supersound process with barium sulfate, organic triple superphosphate after fatty acid is heated to fusing, obtain homodisperse fatty acid After mixed liquor add triethanolamine borate continue stirring, rise high-temperature to when 60-70 DEG C add white carbon, potassium titanate crystal whisker and Cross-linking agent TAC continues stirring, transfers to mediate in kneader, be then cooled to room temperature standby after stirring 20-30min；

(2) by drying 6-8h at polypropylene in an oven 80 DEG C, granule it is cut into after cooling, by sn-bi alloy powder, OBS organic stabilizers The polypropylene granules of agent and pretreatment, according to proportioning mix homogeneously in homogenizer, is then added to double screw extruder extrusion Pelletize, then granule is dried at 80 DEG C 4-5h, be placed in capillary rheometer, make mixing precursor, precursor clamped On fixture, add in hot tank at the environment of 170-180 DEG C, with the speed Uniform Tension fiber of 10mm/min；

(3) will remain product that remaining composition prepared according to formula ratio and step (1) by banbury melt blending, temperature is 160-175 DEG C, the time is 15-25min, re-uses mill and is mixed in above-mentioned composite by product prepared by step (2), Afterwards by single screw extrusion machine pelletize, then by particle under the rate of extrusion of 10-15m/min, extrude stranding material by extrusion die It is cooled to room temperature.

The invention have the advantage that and by the present invention in that with low-melting-point metal as conductive filler, in conjunction with melting mixing with solid The means stretched mutually, are prepared for conduction, antistatic composite fiber so that it is have good intensity and elongation at break, and have Excellent electric conductivity and mechanical property, solve metal and cause electrical conductivity to decline with matrix material poor compatibility, easily oxidation Problem, utilize water-repelling agent that filler is modified, improve caking property between hydrophobic properties of the surface and filler, and at macromolecule Matrix material has the good compatibility and dispersibility, and substantially increases the uvioresistant of material, weather-proof and improve intensity etc. The characteristic of aspect, cable material intensity height prepared by the present invention, insulation, anti tear, percentage elongation are good, it is possible to meet locomotive cable Use requirement, and service life is long, is worthy to be popularized.

Detailed description of the invention

A kind of locomotive UV resistance crack resistance type cable material, is made up of the raw material of following weight portion (kilogram): three second Hydramine borate 2.3, emulsifier op-10 0.3, Polyurethane Thermoplastic Elastomer 44, sn-bi alloy powder 6, polypropylene 26, fat Acid 5, microwax 2, barium sulfate 5, organic triple superphosphate 3, white carbon 6, potassium titanate crystal whisker 3, cross-linking agent TAC0.4, OBS organic stabilizer 2, polylactic acid 28, deionized water are appropriate.

Described a kind of locomotive UV resistance crack resistance type cable material, is made up of step in detail below:

(1) heat supersound process with barium sulfate, organic triple superphosphate after fatty acid is heated to fusing, obtain homodisperse fatty acid Add triethanolamine borate after mixed liquor and continue stirring, rise high-temperature to adding white carbon, potassium titanate crystal whisker and friendship when 60 DEG C Connection agent TAC continues stirring, transfers to mediate in kneader, be then cooled to room temperature standby after stirring 20min；

(2) by drying 6h at polypropylene in an oven 80 DEG C, granule it is cut into after cooling, by sn-bi alloy powder, OBS organic stabilizer With the polypropylene granules of pretreatment according to proportioning mix homogeneously in homogenizer, it is then added to double screw extruder extrusion and makes Grain, then dries 4h at 80 DEG C by granule, be placed in capillary rheometer, make mixing precursor, precursor be clamped in folder On tool, add in hot tank at the environment of 170 DEG C, with the speed Uniform Tension fiber of 10mm/min；

(3) will remain product that remaining composition prepared according to formula ratio and step (1) by banbury melt blending, temperature is 160 DEG C, the time is 15min, re-uses mill and is mixed in above-mentioned composite by product prepared by step (2), finally by Single screw extrusion machine pelletize, then by particle under the rate of extrusion of 10m/min, it is cooled to room temperature by extrusion die extrusion stranding material ?.

The performance test of this locomotive cable material is as follows:

Hot strength (MPa): 16.1；Elongation at break (%): 411；Specific insulation (Ω. cm): 4.7 × 10¹⁶；Dielectric is strong Degree (MV/m): 27；Oxygen index (OI) (%): 30；Under load percentage elongation (%): 12；Permanent set (%): 0.

Claims (2)

1. a locomotive UV resistance crack resistance type cable material, it is characterised in that be made up of the raw material of following weight portion: three Ethanolamine borate 2.3-3, emulsifier op-10 0.3-0.4, Polyurethane Thermoplastic Elastomer 44-49, sn-bi alloy powder 6-8, Polypropylene 26-33, fatty acid 5-7, microwax 2-3, barium sulfate 5-6, organic triple superphosphate 3-5, white carbon 6-8, potassium titanate crystal whisker 3- 4, cross-linking agent TAC0.4-0.5, OBS organic stabilizer 2-3, polylactic acid 28-35, deionized water are appropriate.

A kind of locomotive UV resistance crack resistance type cable material, it is characterised in that by walking in detail below Suddenly make:

(1) heat supersound process with barium sulfate, organic triple superphosphate after fatty acid is heated to fusing, obtain homodisperse fatty acid After mixed liquor add triethanolamine borate continue stirring, rise high-temperature to when 60-70 DEG C add white carbon, potassium titanate crystal whisker and Cross-linking agent TAC continues stirring, transfers to mediate in kneader, be then cooled to room temperature standby after stirring 20-30min；

(2) by drying 6-8h at polypropylene in an oven 80 DEG C, granule it is cut into after cooling, by sn-bi alloy powder, OBS organic stabilizers The polypropylene granules of agent and pretreatment, according to proportioning mix homogeneously in homogenizer, is then added to double screw extruder extrusion Pelletize, then granule is dried at 80 DEG C 4-5h, be placed in capillary rheometer, make mixing precursor, precursor clamped On fixture, add in hot tank at the environment of 170-180 DEG C, with the speed Uniform Tension fiber of 10mm/min；

(3) will remain product that remaining composition prepared according to formula ratio and step (1) by banbury melt blending, temperature is 160-175 DEG C, the time is 15-25min, re-uses mill and is mixed in above-mentioned composite by product prepared by step (2), Afterwards by single screw extrusion machine pelletize, then by particle under the rate of extrusion of 10-15m/min, extrude stranding material by extrusion die It is cooled to room temperature.