CN106589930A - Flame retardant nylon composite material for anti-impact electric power fittings and manufacturing method thereof - Google Patents

Abstract

The invention discloses a flame retardant nylon composite material for anti-impact electric power fittings. The flame retardant nylon composite material is prepared from, by weight, 75-79 parts of nylon 66, 23-25 parts of ABS resin, 21-22 parts of carbon fiber, 10-12 parts of basalt fiber, 8.6-9.2 parts of melamine cyanurate, 20-24 parts of beryllium oxide, 2.2-2.6 parts of hexamethyldisilazane, 3.1-3.4 parts of ethylene bisstearamide, 8-10 parts of methyl triacetoxyborohydride silane, 1.8-2.1 parts of nano bamboo charcoal powder and 4-5 parts of soybean concentrated protein powder. Melamine cyanurate is used as fire retardant, beryllium oxide obtained after silane modification is used as heat conducting filler, carbon fiber is used as a reinforcing material and matched with other effective components for mutual compounding, and the manufactured electric power fittings have the advantages of being resistant to impact and heat, flame retardant, long in service life and the like.

Description

A kind of shock resistance electric armour clamp fire-retardant nylon composite and preparation method thereof

Technical field

The present invention relates to technical field of composite materials, more particularly to a kind of shock resistance electric armour clamp fire-retardant nylon composite wood Material and preparation method thereof.

Background technology

Electric armour clamp be connection and combinational electric system in all kinds of devices, play transmission mechanical load, electrical load and The metal-ware of certain protective action, used as part indispensable on transmission line of electricity, its electric energy loss is always power department The problem of concern.In addition to improving from electric armour clamp casting technique, the selection to its material is particularly important, and material is prepared at present Mainly based on nonmagnetic aluminium alloy, although compared with the ferrimagnet for using in the past, electrical network energy-saving and emission-reduction are played necessarily Effect, but used as metallic conductor, eddy-current loss is still present, and energy loss is still unavoidable from, and Al-alloy products must Must obtain through the high energy consumptions such as ore dressing, exploitation, electrolysis, melting, high pollution operation, belong to national developmental limitation industry, it is impossible to full The economic needs of sufficient transmission line of electricity.Replace metal material with insulant, so that it may reduce eddy-current loss, reach more preferable energy-conservation effect Really.With the fast development of brand-new material science, the composite with insulating properties is applied to more and more power industry In, as the making material of electric armour clamp, it is up to decrease or even eliminate the purpose of eddy-current loss.

It is known that fibre reinforced composites have the performance such as lightweight, high-strength, anti-corrosion, insulation, environmental protection, in power industry Be widely used in transmission and distribution networkses, thus in order to solve the problems, such as electric line in steel and aluminum alloy hardware high energy consumption, Reduce line loss, document《The development and application of modified composite material conductor spacer and suspension clamp》Tens of kinds of engineering plastics are entered Go and selected and study, it is determined that using PA66 nylon as the base material of composite.In the substrate add glass fibre, toughener, Resistance to ozone and corrosion-resistant etc. material modified, and by repetition test test and formulation optimization, successfully develop a kind of modified compound Material, and the design of conductor spacer and suspension clamp, trial-production and experimental study based on modified composite material have been carried out, as a result show it Performance meets national standard and power industry standard requirement, and the suspension clamp based on composite has been applied to 35 kV and 220 In kV overhead transmission lines, operation conditions is good.

Belong to combustible material yet with nylon material, electric armour clamp is used for for a long time open air, especially during the broiling summer Hold fire hazardous with dry winter, and the improvement of the performance such as fire-retardant to material in document, cold-resistant, ageing-resistant does not add elaboration, Thus the electric armour clamp with fire resistance for developing a kind of multifunction efficient energy-saving have with modified composite nylon material it is good Good application prospect.

The content of the invention

The object of the invention is exactly to make up the defect of prior art, there is provided a kind of shock resistance electric armour clamp fire-retardant nylon Composite and preparation method thereof.

The present invention is achieved by the following technical solutions：

A kind of shock resistance electric armour clamp fire-retardant nylon composite, is prepared by the raw materials in：Nylon66 fiber 75-79, ABS resin 23-25, carbon fiber 21-22, basalt fibre 10-12, melamine cyanurate 8.6-9.2, beryllium oxide 20-24, Hexamethyldisiloxane 2.2-2.6, ethylene bis stearic acid amide 3.1-3.4, methyl triacetoxysilane 8-10, bamboo charcoal nano Powder 1.8-2.1, the concentrated albumen-powder of soybeans 4-5.

A kind of described shock resistance electric armour clamp manufacture method of fire-retardant nylon composite, comprises the following steps：

（1）The concentrated albumen-powder of soybeans is added stirring and evenly mixing heated and boiled in the water of 10-12 times of quality, keeping temperature add nanometer Bamboo charcoal powder, ethylene bis stearic acid amide continue to stir 10-20 minutes, are cooled to 45-55 DEG C, add melamine cyanurate to surpass Sound disperses 20-30 minutes, is spray-dried to obtain modified melamine cyanurate；

（2）By beryllium oxide in 830-940 DEG C of calcination processing 30-40 minute, 120-130 DEG C of addition hexamethyldisiloxane is cooled to Grinding 20-30 minutes, 75-80 DEG C of addition methyl triacetoxysilane ultrasonic disperse 10-15 minute is cooled to, room temperature is dried Modified oxidized beryllium；

（3）Carbon fiber is placed in the salpeter solution that mass concentration is 25%-40%, is soaked 10-20 minutes under room temperature condition, then With in the sodium hydroxide solution of mass concentration 5%-20% and residual acid solution, final rinse water to neutrality is dried must be roughened place Reason carbon fiber；

（4）By nylon66 fiber, ABS resin, step（1）、（2）Material and other residual componentss mix homogeneously in mixer, on Jing Trip spout, sends into double screw extruder, while by step（3）Middle roughening treatment carbon fiber Jing fed downstream mouths, send into double spiral shells Bar extruder melting extrusion, pelletize, discharging.

It is an advantage of the invention that：With melamine cyanurate as fire retardant, addition nano bamboo powdered carbon is changed the present invention Property after its crystal can be made to be generally uniformly dispersed in nylon matrix, in burning by itself endothermic decomposition, generation can not combustion gas Body, realizes that gas phase is intercepted, and so as to play fire retardation, and leaves nanoporous on composite self-extinguishment face；The present invention will Beryllium oxide carry out it is silane-modified after be added in raw material as heat filling, and nylon matrix wellability it is good be uniformly dispersed, carry The thermal diffusivity and heat resistance of high material；As reinforcing material, again other effective ingredient of compatibility are mutually combined system to addition carbon fiber The electric armour clamp for obtaining has the advantages that shock resistance, heat-resisting, fire-retardant, long service life.

Specific embodiment

A kind of shock resistance electric armour clamp fire-retardant nylon composite, is prepared by the raw materials in：Nylon66 fiber 75th, ABS resin 23, carbon fiber 21, basalt fibre 10, melamine cyanurate 8.6, beryllium oxide 20, the silicon nitrogen of hexamethyl two Alkane 2.2, ethylene bis stearic acid amide 3.1, methyl triacetoxysilane 8, nano bamboo powdered carbon 1.8, the concentrated albumen-powder of soybeans 4.

A kind of described shock resistance electric armour clamp manufacture method of fire-retardant nylon composite, comprises the following steps：

（1）The concentrated albumen-powder of soybeans is added stirring and evenly mixing heated and boiled in the water of 10-12 times of quality, keeping temperature add nanometer Bamboo charcoal powder, ethylene bis stearic acid amide continue to stir 10-20 minutes, are cooled to 45-55 DEG C, add melamine cyanurate to surpass Sound disperses 20-30 minutes, is spray-dried to obtain modified melamine cyanurate；

（2）By beryllium oxide in 830-940 DEG C of calcination processing 30-40 minute, 120-130 DEG C of addition hexamethyldisiloxane is cooled to Grinding 20-30 minutes, 75-80 DEG C of addition methyl triacetoxysilane ultrasonic disperse 10-15 minute is cooled to, room temperature is dried Modified oxidized beryllium；

（3）Carbon fiber is placed in the salpeter solution that mass concentration is 25%-40%, is soaked 10-20 minutes under room temperature condition, then With in the sodium hydroxide solution of mass concentration 5%-20% and residual acid solution, final rinse water to neutrality is dried must be roughened place Reason carbon fiber；

（4）By nylon66 fiber, ABS resin, step（1）、（2）Material and other residual componentss mix homogeneously in mixer, on Jing Trip spout, sends into double screw extruder, while by step（3）Middle roughening treatment carbon fiber Jing fed downstream mouths, send into double spiral shells Bar extruder melting extrusion, pelletize, discharging.

It is 212MPa using electric armour clamp fire-retardant nylon composite material tensile strength obtained in the present invention, elongation percentage is 5.12%。

Claims (2)

1. a kind of shock resistance electric armour clamp fire-retardant nylon composite, it is characterised in that be prepared by the raw materials in： Nylon66 fiber 75-79, ABS resin 23-25, carbon fiber 21-22, basalt fibre 10-12, melamine cyanurate 8.6- 9.2nd, beryllium oxide 20-24, hexamethyldisiloxane 2.2-2.6, ethylene bis stearic acid amide 3.1-3.4, methyl triacetoxyl group Silane 8-10, nano bamboo powdered carbon 1.8-2.1, the concentrated albumen-powder of soybeans 4-5.

2. a kind of shock resistance electric armour clamp according to claim 1 manufacture method of fire-retardant nylon composite, it is special Levy is to comprise the following steps：

（1）The concentrated albumen-powder of soybeans is added stirring and evenly mixing heated and boiled in the water of 10-12 times of quality, keeping temperature add nanometer Bamboo charcoal powder, ethylene bis stearic acid amide continue to stir 10-20 minutes, are cooled to 45-55 DEG C, add melamine cyanurate to surpass Sound disperses 20-30 minutes, is spray-dried to obtain modified melamine cyanurate；

（2）By beryllium oxide in 830-940 DEG C of calcination processing 30-40 minute, 120-130 DEG C of addition hexamethyldisiloxane is cooled to Grinding 20-30 minutes, 75-80 DEG C of addition methyl triacetoxysilane ultrasonic disperse 10-15 minute is cooled to, room temperature is dried Modified oxidized beryllium；

（3）Carbon fiber is placed in the salpeter solution that mass concentration is 25%-40%, is soaked 10-20 minutes under room temperature condition, then With in the sodium hydroxide solution of mass concentration 5%-20% and residual acid solution, final rinse water to neutrality is dried must be roughened place Reason carbon fiber；

（4）By nylon66 fiber, ABS resin, step（1）、（2）Material and other residual componentss mix homogeneously in mixer, on Jing Trip spout, sends into double screw extruder, while by step（3）Middle roughening treatment carbon fiber Jing fed downstream mouths, send into double spiral shells Bar extruder melting extrusion, pelletize, discharging.