CN105086047A - Special high-performance oil-resistant cable material for oil well and preparation method for special high-performance oil-resistant cable material for oil well - Google Patents

Abstract

The invention discloses a special high-performance oil-resistant cable material for an oil well and a preparation method for the special high-performance oil-resistant cable material for the oil well. The special high-performance oil-resistant cable material for the oil well is characterized by being prepared from the following raw materials in parts by weight: 90-100 parts of polyethylene, 10-15 parts of red phosphorus, 3-5 parts of paraffin, 0.5-1 part of a silane coupling agent kh570, 15-25 parts of nano calcium carbonate, 0.8-1.6 parts of polyvinyl alcohol, 2-4 parts of copper powder, 5-8 parts of polystyrene resin, 1-3 parts of zinc borate, 5-10 parts of pentaerythritol stearamide, 2-3 parts of conductive metal powder, 3-5 parts of white carbon black, 1-3 parts of bis-tetradecyl carbon alcohol ester and a proper amount of anhydrous ethanol. The cable material disclosed by the invention is simple in preparation method, simple in process and strong in operability, can be produced on a large scale, and is worth being popularized.

Description

A kind of oil well dedicated high performance oil resistant cable material and preparation method thereof

Technical field

The present invention relates to cable material field, particularly relate to a kind of oil well dedicated high performance oil resistant cable material and preparation method thereof.

Background technology

Communication, electric power are the development in the emphasis of nation-building, whichever place, and communication, power construction are always leading, so communication, electric utility development are very fast.The development of communication, electric utility, working in coordination of all respects is wanted in spontaneous combustion, wherein CABLE MATERIALS is exactly an aspect, general electric wire is coating expects mainly plastics casing rubber, as long as electric wire thermoplastics has polyvinyl chloride, polyethylene, polypropylene, fluoroplastics, penton and polymeric amide, wherein widely used is polyethylene and polyvinyl chloride.In China's polyvinyl chloride cable material development comparatively early, kind model is more, for the manufacture of wire cable insulating and the sheath of various temperature classification.Because density of pe is little, electrical property is excellent, be easy to forming process.Polyethylene is the large kind of one in thermoplastics, there is the features such as light weight, nontoxic, chemical resistance is excellent, but poly oxygen index is very low, belong to inflammable material, polyethylene can produce serious melting drippage behavior when burning, this brings very large difficulty to flame retardant resistance, except inflammable, poly volume specific resistance and surface resistivity are very high, this just makes it once bring electrostatic to be just difficult to eliminate in processing and use procedure, and two above shortcomings bring very large potential safety hazard and reduce use range to poly use.Red phosphorus is the efficient flame-retarding agent of the superpolymer such as plastics, rubber, resin and synthon, and red phosphorus itself is inflammable, badly influences the flame retardant effect of red phosphorus.Calcium carbonate filling modification high density polyethylene(HDPE), research emphasis comparatively early concentrates on and how to realize filling to greatest extent, reduce costs, although improve the rigidity of material, but intensity and the fracture toughness property of material is greatly reduced, and be not suitable for carrying high density polyethylene(HDPE) sheath material, the present invention adopts special process modified nano calcium carbonate to not only improve filler dispersion effect in the base and enhances the two cohesive strength, improve intensity and the toughness of polythene material, enhance bearing capacity greatly, mechanical property is improved greatly.

Summary of the invention

The object of this invention is to provide a kind of oil well dedicated high performance oil resistant cable material and preparation method thereof.

In order to realize object of the present invention, the present invention is by following scheme implementation:

A kind of oil well dedicated high performance oil resistant cable material and preparation method thereof, is made up of the raw material of following weight part: polyethylene 90-100, red phosphorus 10-15, paraffin 3-5, silane coupling agent kh5700.5-1, nano-calcium carbonate 15-25, polyvinyl alcohol 0.8-1.6, copper powder 2-4, polystyrene resin 5-8, zinc borate 1-3, tetramethylolmethane hard esteramides 5-10, conductive metal powder 2-3, white carbon black 3-5, two ten four carbon alcohols ester 1-3, dehydrated alcohol are appropriate;

A kind of oil well dedicated high performance oil resistant cable material of the present invention and preparation method thereof, be made up of following concrete steps:

(1) silane coupling agent kh570 is added to is placed in the flask of water-bath, add appropriate dehydrated alcohol and be slowly warming up to and dissolve completely, the nano-calcium carbonate adding oven dry again stirs, control temperature is within the scope of 70-90 ° of C, add polyvinyl alcohol, copper powder heated and stirred backflow 0.5-1h again, carry out repeatedly suction filtration after reaction terminates, alcohol wash circulation repeatedly, then is placed in baking oven and dries under 110 ° of C, grind for subsequent use;

(2) by red phosphorus and paraffin mixing, raised temperature stirs to during 50-60 ° of C again, be added in the polystyrene resin of melting after being cooled to rapidly room temperature, then add product mixing and stirring prepared by zinc borate and step (1) naturally cool to room temperature after for subsequent use;

(3) by open type plastic purificating set raised temperature to 160-170 ° of C, polyethylene, the hard esteramides of tetramethylolmethane are added to two roller intermediate melt and plasticate, material prepared by step (2) is added after it mixes, the two roller spacing of adjustment, roller refining, thin-pass repeatedly make the two mix, add all the other remaining materials again and continue mixing and stirring, after naturally cooling to room temperature, mixture is transferred to compression moulding under 180 ° of C in vulcanizing press.

Advantage of the present invention is: the present invention adopts silane coupler modified nano-calcium carbonate, calcium carbonate surface is made to have certain hydrophobicity, enhance the consistency in polyethylene and dispersiveness, and add in modifying process copper powder adhere to its surface, improve poly antistatic property, by the coated polystyrene resin of red phosphorus and paraffin combination cooling rear surface, solve the problem that red phosphorus is inflammable, greatly improve flame retardant properties, and do not affect poly physical and mechanical property, during fire-retardant product burning, the amount of being fuming is low, no asphyxia gas is released, health environment-friendly, the conductive metal powder added, white carbon black and two ten four carbon alcohols esters can greatly promote poly anti-oxidant, anti-aging, oil resistant, the performances such as uvioresistant, preparation method of the present invention is simple, technique is simple, strong operability, can be mass-produced, be worthy to be popularized.

specific embodiments

Below by specific examples, the present invention is described in detail.

A kind of oil well dedicated high performance oil resistant cable material and preparation method thereof, is made up of the raw material of following weight part (kilogram): polyethylene 100, red phosphorus 13, paraffin 4, silane coupling agent kh5700.7, nano-calcium carbonate 21, polyvinyl alcohol 0.9, copper powder 3, polystyrene resin 7, zinc borate 2, the hard esteramides of tetramethylolmethane 8, conductive metal powder 2, white carbon black 3, two ten four carbon alcohols esters 2, dehydrated alcohol are appropriate;

A kind of oil well dedicated high performance oil resistant cable material of the present invention and preparation method thereof, be made up of following concrete steps:

(1) silane coupling agent kh570 is added to is placed in the flask of water-bath, add appropriate dehydrated alcohol and be slowly warming up to and dissolve completely, the nano-calcium carbonate adding oven dry again stirs, control temperature is within the scope of 90 ° of C, add polyvinyl alcohol, copper powder heated and stirred backflow 0.6h again, carry out repeatedly suction filtration after reaction terminates, alcohol wash circulation repeatedly, then is placed in baking oven and dries under 110 ° of C, grind for subsequent use;

(2) by red phosphorus and paraffin mixing, then stir during raised temperature to 60 ° C, be added in the polystyrene resin of melting after being cooled to rapidly room temperature, then add product mixing and stirring prepared by zinc borate and step (1) naturally cool to room temperature after for subsequent use;

(3) by open type plastic purificating set raised temperature to 160 ° C, polyethylene, the hard esteramides of tetramethylolmethane are added to two roller intermediate melt and plasticate, material prepared by step (2) is added after it mixes, the two roller spacing of adjustment, roller refining, thin-pass repeatedly make the two mix, add all the other remaining materials again and continue mixing and stirring, after naturally cooling to room temperature, mixture is transferred to compression moulding under 180 ° of C in vulcanizing press.

Produce polythene material according to embodiment preparation, performance index are as follows: tensile strength >=17MPa, tensile strength >=31MPa, dielectric strength >=34MV/m, fracture extension rate >=310%, elongation at break velocity of variation 12%, oxygen index >=30%.

Claims (2)

1. oil well dedicated high performance oil resistant cable material and preparation method thereof, it is characterized in that, be made up of the raw material of following weight part: polyethylene 90-100, red phosphorus 10-15, paraffin 3-5, silane coupling agent kh5700.5-1, nano-calcium carbonate 15-25, polyvinyl alcohol 0.8-1.6, copper powder 2-4, polystyrene resin 5-8, zinc borate 1-3, tetramethylolmethane hard esteramides 5-10, conductive metal powder 2-3, white carbon black 3-5, two ten four carbon alcohols ester 1-3, dehydrated alcohol are appropriate.

2. a kind of oil well dedicated high performance oil resistant cable material and preparation method thereof according to claim 1, is characterized in that, be made up of following concrete steps:

(1) silane coupling agent kh570 is added to is placed in the flask of water-bath, add appropriate dehydrated alcohol and be slowly warming up to and dissolve completely, the nano-calcium carbonate adding oven dry again stirs, control temperature is within the scope of 70-90 ° of C, add polyvinyl alcohol, copper powder heated and stirred backflow 0.5-1h again, carry out repeatedly suction filtration after reaction terminates, alcohol wash circulation repeatedly, then is placed in baking oven and dries under 110 ° of C, grind for subsequent use;

(2) by red phosphorus and paraffin mixing, raised temperature stirs to during 50-60 ° of C again, be added in the polystyrene resin of melting after being cooled to rapidly room temperature, then add product mixing and stirring prepared by zinc borate and step (1) naturally cool to room temperature after for subsequent use;

(3) by open type plastic purificating set raised temperature to 160-170 ° of C, polyethylene, the hard esteramides of tetramethylolmethane are added to two roller intermediate melt and plasticate, material prepared by step (2) is added after it mixes, the two roller spacing of adjustment, roller refining, thin-pass repeatedly make the two mix, add all the other remaining materials again and continue mixing and stirring, after naturally cooling to room temperature, mixture is transferred to compression moulding under 180 ° of C in vulcanizing press.