CN104177699A - Electric-leakage-proof sleeve - Google Patents

Abstract

The invention discloses an electric-leakage-proof sleeve. The electric-leakage-proof sleeve comprises the following raw materials in parts by weight: 1-2 parts of potassium triborate, 1-2 parts of methyl parahydroxybenzoate, 2-3 parts of sodium aluminate, 0.5-1 part of trifluorotrichloroethane, 2-4 parts of polyisobutene, 1-2 parts of polytetrafluoroethylene wax, 1-2 parts of propyleneglycol methyl acetate, 2-3 parts of anhydrous calcium chloride, 2-3 parts of calcium stearate, 0.6-1 part of dodecyl dimethyl betaine, 12-15 parts of talc powder, 92-100 parts of polypropylene and 7-10 parts of composite additive. The electric-leakage-proof disclosed by the invention is particularly suitable for places with high temperature, dust, shock and danger of fire and has the advantages of electric-leakage-proof performance, high compressive strength and good flame retardant performance and is safe and reliable.

Description

A kind of anticreep sleeve pipe

Technical field

The present invention relates generally to tubing field, relates in particular to a kind of anticreep sleeve pipe and preparation method thereof.

Background technology

Polyacrylic degree of crystallinity is high, compound with regular structure, thereby there is good mechanical property.The absolute value of Mechanical Properties of PP is higher than polyethylene, but in plastic material, still belongs to kind on the low side, and its tensile strength only can reach 30 MPa or slightly high level.The polypropylene that isotactic index is larger has higher tensile strength, but with the raising of isotactic index, the shock strength of material declines to some extent, but no longer changes after dropping to a certain numerical value.

Temperature and loading rate are very large to polyacrylic Toughness.When temperature is during higher than second-order transition temperature, impact fracture is ductile rupture, lower than second-order transition temperature, is brittle rupture, and impact value significantly declines.Improve loading rate, can make the temperature that ductile rupture changes to brittle rupture increase.Polypropylene has excellent counter-bending fatigability, its goods bent 106 times and do not damage at normal temperatures;

Polyacrylic chemical stability is fine, outside decapacitation is corroded by the vitriol oil, concentrated nitric acid, all more stable to other various chemical reagent, but low-molecular-weight aliphatic hydrocarbon, aromatic hydrocarbon and chlorinated hydrocarbon etc. can make polypropylene soften and swelling, its chemical stability also increases with the increase of degree of crystallinity simultaneously, so polypropylene is applicable to making various chemical pipelines and accessory, anticorrosion ability is good; Preparing aspect corrugated tube, polypropylene has higher Young's modulus and the lower features such as density, can meet the performance requriements of corrugated tube completely.

Summary of the invention

The object of the invention is just to provide a kind of anticreep sleeve pipe and preparation method thereof.

The present invention is achieved by the following technical solutions:

An anticreep sleeve pipe, is characterized in that what it was comprised of the raw material of following weight parts:

Three potassium borate 1-2, methyl p-hydroxybenzoate 1-2, sodium aluminate 2-3, Freon 113 0.5-1, polyisobutene 2-4, tetrafluoroethylene wax 1-2,1-Methoxy-2-propyl acetate 1-2, Calcium Chloride Powder Anhydrous 2-3, calcium stearate 2-3, Varion CDG-K 0.6-1, talcum powder 12-15, polypropylene 92-100, composite assistant 7-10;

Described composite assistant is comprised of the raw material of following weight parts:

Polypropylene 20-30, poly(vinylidene fluoride) 10-20, titanium nitride 1-2, silica gel silicon oil 1-2, sepiolite powder 20-30, dithiocyano-methane 0.1-0.2, the different monooctyl ester 2-3 of polyacrylic acid, ammonium octamolybdate 0.5-1,2,6 ditertiary butyl p cresol 0.4-1;

Above-mentioned polypropylene is mixed with poly(vinylidene fluoride), and at 100-120 ℃, Heat preservation 20-30 minute, adds titanium nitride, grinds evenly, adds dithiocyano-methane, and 200-300 rev/min of dispersed with stirring 3-5 minute, must expect a;

Sepiolite powder is calcined to 2-3 hour at 600-700 ℃, after discharging is cooling, add ammonium octamolybdate, add after the different monooctyl ester of polyacrylic acid is heated to 50-60 ℃, under agitation condition, drip silica gel silicon oil, after dropwising, mix with material a and each raw material of residue, fully ball milling, obtains described composite assistant.

A preparation method for anticreep sleeve pipe, comprises the following steps:

(1) above-mentioned sodium aluminate, Calcium Chloride Powder Anhydrous, tetrafluoroethylene wax are mixed, be heated to 70-80 ℃, add polyisobutene, calcium stearate, 500-700 rev/min of dispersed with stirring 20-30 minute;

(2) talcum powder is mixed with methyl p-hydroxybenzoate, after stirring, add Freon 113, Varion CDG-K, 600-700 rev/min of dispersed with stirring 10-16 minute;

(2) each raw material after above-mentioned processing is mixed with each raw material of residue, adopt twin screw granulation, by pellet extruding pipe material on twin screw extruder, tubing is pipe finished through cooling, cutting, hole enlargement, packing etc.

Advantage of the present invention is:

Sleeve pipe of the present invention is specially adapted at high temperature, many dirt, has vibrations and the place of fire-prone, and leakproof is electrically good, and compressive strength is high, and good flame resistance is safe and reliable.

Embodiment

Embodiment 1

An anticreep sleeve pipe, it is comprised of the raw material of following weight parts:

Three potassium borates 2, methyl p-hydroxybenzoate 2, sodium aluminate 2, Freon 113 0.5, polyisobutene 2, tetrafluoroethylene wax 1,1-Methoxy-2-propyl acetate 1-Calcium Chloride Powder Anhydrous 2, calcium stearate 2, Varion CDG-K 0.6, talcum powder 15, polypropylene 100, composite assistant 10;

Described composite assistant is comprised of the raw material of following weight parts:

Polypropylene 30, poly(vinylidene fluoride) 20, titanium nitride 1, silica gel silicon oil 2, sepiolite powder 30, dithiocyano-methane 0.2, the different monooctyl ester 3 of polyacrylic acid, ammonium octamolybdate 0.5,2,6 ditertiary butyl p cresol 0.4;

Above-mentioned polypropylene is mixed with poly(vinylidene fluoride), and at 120 ℃, Heat preservation is 30 minutes, adds titanium nitride, grinds evenly, adds dithiocyano-methane, and 300 revs/min of dispersed with stirring 5 minutes, must expect a;

Sepiolite powder is calcined 3 hours at 700 ℃, after discharging is cooling, added ammonium octamolybdate, add after the different monooctyl ester of polyacrylic acid is heated to 60 ℃, under agitation condition, drip silica gel silicon oil, after dropwising, mix with material a and each raw material of residue, fully ball milling, obtains described composite assistant.

A preparation method for anticreep sleeve pipe, comprises the following steps:

(1) above-mentioned sodium aluminate, Calcium Chloride Powder Anhydrous, tetrafluoroethylene wax are mixed, be heated to 70 ℃, add polyisobutene, calcium stearate, 700 revs/min of dispersed with stirring 20 minutes;

(2) talcum powder is mixed with methyl p-hydroxybenzoate, after stirring, add Freon 113, Varion CDG-K, 700 revs/min of dispersed with stirring 16 minutes;

(3) each raw material after above-mentioned processing is mixed with each raw material of residue, adopt twin screw granulation, by pellet extruding pipe material on twin screw extruder, tubing is pipe finished through cooling, cutting, hole enlargement, packing etc.

Performance test:

Dimension card heat-resisting (10N, 50 ℃/h): 152;

Drop impact (0 ℃): qualified;

Degree of corrosion (60% hydrochloric acid, 60 ℃, 165h): without layering, without cracked;

Degree of corrosion (40% sodium hydroxide, 60 ℃, 165h): without layering, without cracked;

Ring is flexible: sample is round and smooth, without reverse bending, and crack-free.

Claims (2)

1. an anticreep sleeve pipe, is characterized in that what it was comprised of the raw material of following weight parts:

Three potassium borate 1-2, methyl p-hydroxybenzoate 1-2, sodium aluminate 2-3, Freon 113 0.5-1, polyisobutene 2-4, tetrafluoroethylene wax 1-2,1-Methoxy-2-propyl acetate 1-2, Calcium Chloride Powder Anhydrous 2-3, calcium stearate 2-3, Varion CDG-K 0.6-1, talcum powder 12-15, polypropylene 92-100, composite assistant 7-10;

Described composite assistant is comprised of the raw material of following weight parts:

Polypropylene 20-30, poly(vinylidene fluoride) 10-20, titanium nitride 1-2, silica gel silicon oil 1-2, sepiolite powder 20-30, dithiocyano-methane 0.1-0.2, the different monooctyl ester 2-3 of polyacrylic acid, ammonium octamolybdate 0.5-1,2,6 ditertiary butyl p cresol 0.4-1;

Above-mentioned polypropylene is mixed with poly(vinylidene fluoride), and at 100-120 ℃, Heat preservation 20-30 minute, adds titanium nitride, grinds evenly, adds dithiocyano-methane, and 200-300 rev/min of dispersed with stirring 3-5 minute, must expect a;

Sepiolite powder is calcined to 2-3 hour at 600-700 ℃, after discharging is cooling, add ammonium octamolybdate, add after the different monooctyl ester of polyacrylic acid is heated to 50-60 ℃, under agitation condition, drip silica gel silicon oil, after dropwising, mix with material a and each raw material of residue, fully ball milling, obtains described composite assistant.

2. a preparation method for anticreep sleeve pipe as claimed in claim 1, is characterized in that comprising the following steps:

(1) above-mentioned sodium aluminate, Calcium Chloride Powder Anhydrous, tetrafluoroethylene wax are mixed, be heated to 70-80 ℃, add polyisobutene, calcium stearate, 500-700 rev/min of dispersed with stirring 20-30 minute;

(2) talcum powder is mixed with methyl p-hydroxybenzoate, after stirring, add Freon 113, Varion CDG-K, 600-700 rev/min of dispersed with stirring 10-16 minute;

(3) each raw material after above-mentioned processing is mixed with each raw material of residue, adopt twin screw granulation, by pellet extruding pipe material on twin screw extruder, tubing is pipe finished through cooling, cutting, hole enlargement, packing etc.