CN103724872A - Environmentally-friendly PVC cable material and preparation method thereof - Google Patents

Abstract

The invention discloses an environmentally-friendly PVC cable material which is characterized by comprising the following raw materials in parts by weight: 45-50 parts of SG-3 PVC, 10-12 parts of PBT, 13-16 parts of EVA, 1-2 parts of an accelerant DTDM, 1-2 parts of 2-sulphydryl benzimidazole, 3-4 parts of isopropyl dioleic(dioctylphosphate) titanate, 4-6 parts of zinc oxide, 1-2 parts of an accelerant PZ, 1-2 parts of stearic acid, 3-4 parts of bis-myristyl alcohol ester, 20-24 parts of bauxite, 18-20 parts of bentonite, 14-16 parts of glyceroltriacetate, 7-9 parts of triethyl O-acetylcitrate and 6-8 parts of an addition agent. The environmentally-friendly PVC cable material prepared through the method disclosed by the invention has the characteristics of smooth surface, high tenacity and the like via contour machining, and is suitable for environmentally friendly PVC communication cables which are extruded at high speed, excellent in surface property, high in size accuracy requirements, and corrosion resistant.

Description

A kind of eco PVC cable compounds and preparation method thereof

Technical field

The present invention relates to polymeric material field, particularly a kind of eco PVC cable compounds and preparation method thereof.

Background technology

Polyvinyl chloride (PVC) plastics have excellent mechanical property, and can be combined well with common fillers, and heatproof can reach 105 ℃, and the oxygen index of pure PVC can reach 41%.PVC also has excellent electrical insulation properties, thereby in electric wire, telecommunication cable industry, particularly, aspect low tension wire cable, occupies great advantage.But common PVC Insulation Material contains the objectionable impuritiess such as heavy metal element lead, cadmium, thereby become its important factor in applications such as electric installation, programme-controlled exchange, Infrastructure of restriction.Both at home and abroad the demand of environment-friendly type insulated material is increased rapidly at present; the developed countries such as America and Europe make heavy metal element and the protecting standards of polybrominated biphenyl objectionable impurities to environment such as lead, cadmium, mercury in succession; as Britain-European standard BSEN-71, EN1122, the standard US EPA3050B of USEPA etc.For to protect mankind health and ecotope, soft pvc Insulation Material unleaded nontoxic be trend of the times, the important topic that environment-friendly type PVC Insulation Material has become the research and development of current Insulation Material and produced.

Summary of the invention

The object of this invention is to provide a kind of eco PVC cable compounds and preparation method thereof.

In order to realize object of the present invention, the present invention passes through following scheme implementation:

An eco PVC cable compounds, is made by the raw material of following weight part: SG-3 polyvinyl chloride 45-50, PBT10-12, EVA13-16, vulkacit D TDM1-2,2-thiol group benzimidazolyl 1-2, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 3-4, zinc oxide 4-6, promotor PZ1-2, stearic acid 1-2, two ten four carbon alcohols ester 3-4, aluminium vanadine 20-24, wilkinite 18-20, Vanay 14-16, acetyl triethyl citrate 7-9, auxiliary agent 6-8;

Described auxiliary agent is made by the raw material of following weight part: sepiolite powder 12-14, vinylformic acid dimethylamino ethyl ester 4-5, urotropine 1-2, tripoly phosphate sodium STPP 2-3, SnO ₂1-2, carborundum powder 2-3, linking agent TAC1-2, magnesium oxide 2-3, stalk ashes 1-2, aluminum stearate 1-3, tributyl citrate 1-3, wintergreen oil 0.1-0.2; Preparation method sends into sepiolite powder in calcining furnace and calcine 3-4 hour at 700-730 ℃, take out, send in 10-15% hydrochloric acid and soak 1-2 hour, filter to obtain filter residue, with clear water, wash, dry, be ground into 200-250 order powder, then the powder of drying is mixed with vinylformic acid dimethylamino ethyl ester, tripoly phosphate sodium STPP, linking agent TAC, grind 1-2 hour, add other remaining component, mixed grinding 1-2 hour, obtains again.

Eco PVC cable compounds of the present invention, by following concrete steps, made:

(1) SG-3 polyvinyl chloride, PBT10-12, EVA are heated to molten state, add vulkacit D TDM, 2-thiol group benzimidazolyl, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester, zinc oxide, promotor PZ, auxiliary agent, stir and mediate 18-25 minute, send into twin screw extruder granulation, obtain A material;

(2) by all the other remaining component heating mixed meltings, stir 8-15 minute, send on twin screw extruder and melt extrude granulation, obtain B material;

(3) after A, B material is mixed, on twin screw extruder, melt extrude granulation, obtain.

Excellent effect of the present invention is: the polyvinyl chloride cable material that the inventive method is produced has after forming process, the features such as product surface is smooth, high tenacity, are suitable for high speed extrusion, surface property is good, dimension precision requirement is high, corrosion resistant environment-friendly type PVC telecommunication cable.

Embodiment

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

An eco PVC cable compounds, by following weight part (kilogram) raw material make: SG-3 polyvinyl chloride 45, PBT10, EVA13, vulkacit D TDM1,2-thiol group benzimidazolyl 1, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 3, zinc oxide 4, promotor PZ1, stearic acid 1, two ten four carbon alcohols esters 3, aluminium vanadine 20, wilkinite 18, Vanay 14, acetyl triethyl citrate 7, auxiliary agent 6;

Described auxiliary agent by following weight part (kilogram) raw material make: sepiolite powder 12, vinylformic acid dimethylamino ethyl ester 4, urotropine 1, tripoly phosphate sodium STPP 2, SnO ₂1, carborundum powder 2, linking agent TAC1, magnesium oxide 2, stalk ashes 1, aluminum stearate 1, tributyl citrate 1, wintergreen oil 0.1; Preparation method sends into sepiolite powder in calcining furnace and calcine 3-4 hour at 700-730 ℃, take out, send in 10-15% hydrochloric acid and soak 1-2 hour, filter to obtain filter residue, with clear water, wash, dry, be ground into 200-250 order powder, then the powder of drying is mixed with vinylformic acid dimethylamino ethyl ester, tripoly phosphate sodium STPP, linking agent TAC, grind 1-2 hour, add other remaining component, mixed grinding 1-2 hour, obtains again.

Eco PVC cable compounds of the present invention, by following concrete steps, made:

(1) SG-3 polyvinyl chloride, PBT10-12, EVA are heated to molten state, add vulkacit D TDM, 2-thiol group benzimidazolyl, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester, zinc oxide, promotor PZ, auxiliary agent, stir and mediate 18-25 minute, send into twin screw extruder granulation, obtain A material;

(2) by all the other remaining component heating mixed meltings, stir 8-15 minute, send on twin screw extruder and melt extrude granulation, obtain B material;

(3) after A, B material is mixed, on twin screw extruder, melt extrude granulation, obtain.

Material of the present invention has been carried out to performance test, and main condition are as follows:

Claims (2)

1. an eco PVC cable compounds, it is characterized in that, by the raw material of following weight part, made: SG-3 polyvinyl chloride 45-50, PBT10-12, EVA13-16, vulkacit D TDM 1-2,2-thiol group benzimidazolyl 1-2, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 3-4, zinc oxide 4-6, promotor PZ 1-2, stearic acid 1-2, two ten four carbon alcohols ester 3-4, aluminium vanadine 20-24, wilkinite 18-20, Vanay 14-16, acetyl triethyl citrate 7-9, auxiliary agent 6-8;

Described auxiliary agent is made by the raw material of following weight part: sepiolite powder 12-14, vinylformic acid dimethylamino ethyl ester 4-5, urotropine 1-2, tripoly phosphate sodium STPP 2-3, SnO ₂1-2, carborundum powder 2-3, linking agent TAC1-2, magnesium oxide 2-3, stalk ashes 1-2, aluminum stearate 1-3, tributyl citrate 1-3, wintergreen oil 0.1-0.2; Preparation method sends into sepiolite powder in calcining furnace and calcine 3-4 hour at 700-730 ℃, take out, send in 10-15% hydrochloric acid and soak 1-2 hour, filter to obtain filter residue, with clear water, wash, dry, be ground into 200-250 order powder, then the powder of drying is mixed with vinylformic acid dimethylamino ethyl ester, tripoly phosphate sodium STPP, linking agent TAC, grind 1-2 hour, add other remaining component, mixed grinding 1-2 hour, obtains again.

2. eco PVC cable compounds according to claim 1, is characterized in that, by following concrete steps, is made:

(1) SG-3 polyvinyl chloride, PBT10-12, EVA are heated to molten state, add vulkacit D TDM, 2-thiol group benzimidazolyl, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester, zinc oxide, promotor PZ, auxiliary agent, stir and mediate 18-25 minute, send into twin screw extruder granulation, obtain A material;

(2) by all the other remaining component heating mixed meltings, stir 8-15 minute, send on twin screw extruder and melt extrude granulation, obtain B material;

(3) after A, B material is mixed, on twin screw extruder, melt extrude granulation, obtain.