CN101797786B - Novel intelligent invisible anti-theft network line and method for making insulating protective layer thereof - Google Patents
Novel intelligent invisible anti-theft network line and method for making insulating protective layer thereof Download PDFInfo
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- CN101797786B CN101797786B CN 201010135459 CN201010135459A CN101797786B CN 101797786 B CN101797786 B CN 101797786B CN 201010135459 CN201010135459 CN 201010135459 CN 201010135459 A CN201010135459 A CN 201010135459A CN 101797786 B CN101797786 B CN 101797786B
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Abstract
The invention discloses a method for making an insulating protective layer of an invisible anti-theft network line. The method mainly comprises the two steps of making a modified polytetrafluoroethylene resin and making an insulating protective layer winding tape. The method for making a novel intelligent invisible anti-theft networking line comprises the following steps: (1) winding and packaging the insulating protective layer winding tape on a built-in bare lead wire; (2) performing sintering on the built-in bare lead wire on which the insulating protective layer winding tape is wound and packaged; and (3) twisting the outer surface integrally by using steel wires; winding and packaging the insulating protective layer winding tape on the outer surface; and performing the sintering. Thenovel intelligent invisible anti-theft network line has the following characteristics that: (1) the novel intelligent invisible anti-theft network line has high transparency, is more transparent thana common invisible protective network line and can be substantially invisible beyond 5 meters without influencing architectural style; (2) the novel intelligent invisible anti-theft network line has weather resistance and corrosion resistance, so the novel intelligent invisible anti-theft network line can be exposed in sunshine for a long time without aging and cracking; (3) the novel intelligentinvisible anti-theft network line has wide temperature resistance range, so the novel intelligent invisible anti-theft network line can be used in an environment at the temperature of between 65 and 250 DEG C for a long time; and (4) the novel intelligent invisible anti-theft network line has high electrical insulation property, pressure resistance is up to 6,000 to 8,000V, and the novel intelligent invisible anti-theft network line can be connected with an intelligent alarm system so as to realize real high-voltage low-current intelligent anti-theft function.
Description
Technical field
The present invention relates to a kind of invisible anti-theft network line and insulating protective layer thereof, be specially a kind of novel intelligent invisible anti-theft network line with insulating protective layer and the preparation method of insulating protective layer thereof.
Background technology
Continuous progress along with society, the development and progress of the raising of people's total quality, science and technology and the impact of government policy, traditional barred window has lost the meaning of its existence gradually, the substitute is the intelligent invisible anti-theft network with safe, attractive in appearance, fire prevention and antitheft comprehensive function.
At present, the structure of intelligent invisible anti-theft network line is that stainless steel wire or steel core conductor are twisted into one, cover the transparent insulation materials such as nylon 1010 or PA12 outward and form.Because long-term exposing to the sun and rain in the open, insulating materials wears out easily and loses protective effect, following variation can occur in stainless steel wire or steel core conductor: after 1, stainless steel surfaces is depositing the attachment of the dust that contains other metallic elements or disparate metals particle, in malaria, residual condensed water between attachment and stainless steel is linked to be a micro cell with the two, can cause electrochemical reaction, cause diaphragm to be damaged, produce electrochemical corrosion; 2, stainless steel surfaces adheres to organic matter juice (such as melon dish, noodle soup etc.), is having in the water oxygen situation, can generate organic acid, and organic acid can produce corrosiveness to the metal surface; 3, stainless steel surfaces adheres to contains acid, alkali, salts substances (such as buck, the limewash splash of finishing wall) and can cause local corrosion; 4, in the air of pollution is arranged the atmosphere of a large amount of sulfide, carbonoxide, nitrogen oxide (as contain) meets condensed water, forms sulfuric acid, nitric acid, acetate solution point, can cause chemical attack to stainless steel surfaces.Wearing out of insulating protective layer, and cause stainless giving birth to embroider corrosion, warning system might lose efficacy, and make whole anti-theft net finally lose meaning, so insulating protective layer had vital effect!
Summary of the invention
The objective of the invention is to give full play to the characteristic of polytetrafluoroethylene (PTFE), provide a kind of and transparent have that good noninflammability, electrical insulation capability are good, the preparation method of the insulating protective layer of the invisible anti-theft network line of proof voltage, high-low temperature resistant, the good characteristic such as corrosion-resistant and ageing-resistant.
Another object of the present invention provide have weatherability, corrosion-resistant, but long term exposure does not wear out under sunshine, does not ftracture, heatproof degree scope is wide and the preparation method of a kind of novel intelligent invisible anti-theft network line that electrical insulation capability is good.
The present invention is achieved in that the preparation method of the insulating protective layer of invisible anti-theft network line, mainly comprises the making of modified polytetrafluoroethylresin resin and making two steps of insulating protective layer take-up strap:
One, the making of modified polytetrafluoroethyldispersion dispersion resin comprises the steps:
(1), at first polymerization is used the medium deionized water, initiator ammonium persulfate, perfluoro caprylic acid, the ammoniacal liquor of the total consumption 65～75% of main dispersant, dispersion aids paraffin, pH value is regulated and the antitack agent succinic acid adds in the reactor in proportion, start agitator and vacuum in the still be evacuated to-0.085～-0.09Mpa after, fill out again tetrafluoroethene gas phase monomer the still internal pressure risen to the malleation that is no more than 0.045Mpa, sample analysis also makes oxygen content≤29ppm in the still; The ratio of each composition in the above-mentioned adding still, by heavy part, when deionized water was 100 parts, ammonium persulfate was 6～12 * 10 take the addition of deionized water as benchmark
-4Part, perfluoro caprylic acid 8～13 * 10
-2Part, percent concentration is 28% ammoniacal liquor 3～5 * 10
-2Part, 3～5 parts in paraffin, succinic acid 1～5 * 10
-2Part.
(2), polymerisation: after oxygen content is qualified, after the material in reactor temperature risen to 60～70 ℃, constantly be filled with tetrafluoroethene gas phase monomer and volumetric concentration in the still and be 0.003～0.5% perfluoro propyl vinyl ether gas phase monomer to still internal pressure and reach 2～3.6Mpa, when the tetrafluoroethene gas phase monomer that is filled with reach total amount in the reactor 6～15% the time, add remaining main dispersant perfluoro caprylic acid and ammoniacal liquor; Optimum temperature in the reactor remains in 50～120 ℃, stops after the tetrafluoroethylene monomer total amount in being filled with still reaches 50～60 parts adding, and to the reaction end, stops to stir.
(3), after reaction finishes, with unreacted gas phase monomer suction recycling can, emulsion is lower than 40 ℃ through being cooled to, behind the recovery solid paraffin, obtain polymerized emulsion, this polymerized emulsion is again through namely obtaining modified polytetrafluoroethyldispersion dispersion resin after conventional method cohesion, washing, the dry processing.
Above-mentioned each composition: tetrafluoroethene and perfluoro propyl vinyl ether monomer purity 〉=99.999%, paraffin are food-grade, and its resistivity of deionized water is 90～1,100,000 ohm-cms, and colourity is 2～3 grades, and it is pure that all the other compositions are analysis.
Two, the making of insulating protective layer take-up strap comprises the steps:
(1), will more than the modified polytetrafluoroethyldispersion dispersion resin that obtains refrigerate 20～24h at 8～15 ℃, then at dust-free workshop raw material is sieved with 8～10 purpose sieves, to stop dust to the impact of electrical property.
(2), modified polytetrafluoroethyldispersion dispersion resin and boosting agent after will sieving be mixed into the paste shape, leaves standstill 10～15h; The parts by weight proportioning of modified polytetrafluoroethyldispersion dispersion resin and boosting agent is: modified polytetrafluoroethyldispersion dispersion resin 60～90, boosting agent 20～30.Described boosting agent can be for taking off aromatic hydrocarbon solvent oil EXXSOL D60.
(3), leave standstill after, compound is stirred, the rotating speed of stirring is 15～20r/min, the time is 10～20min; The boosting agent is evenly mixed with raw material.
(4), with the raw material that stirs, leave standstill 10～12h, the boosting agent is permeated to modified polytetrafluoroethyldispersion dispersion resin, then carry out maturation process at 50 ℃～70 ℃, the time is 20～24h; Maturation process can be to carry out slaking in baking oven, and the purpose of slaking is to make the boosting agent to the further fully infiltration of modified polytetrafluoroethyldispersion dispersion resin raw material by heating.
(5), be 2.5～3.8Mpa at pressure; Compression speed is 45～75mm/min, and the dwell time is preformed under 1～8min, makes blank; Preformed equipment can be hydraulic power unit, about the diameter little 1mm of the diameter in its blank chamber than pushing material chamber.
(6), blank is pushed, through cutting into fibre strip; A pushing mouthful mould material cavity temperature is controlled at 50 ℃～70 ℃, and the cone angle of the pushing mould that pushes is 30～45 degree, and compression ratio is 80～130; Wherein, compression ratio is the sectional area (S) in material chamber and the ratio of the sectional area (S ') of mouthful mould.
(7), fibre strip being carried out two roll-ins prolongs, roller temperature is controlled at 50 ℃～70 ℃ during calendering, rolling velocity is controlled at 0.5～5m/min, and the power that produces in the roller operation process makes fiber be oriented flat sheet prefabrication along direction of advance, and rolling is neat;
(8), to removing through the boosting agent in the flat sheet prefabrication made of calendering, temperature is controlled at 100～200 ℃.
(9), cut into the specification of setting finally by cutting machine, make the insulating protective layer take-up strap.
A kind of preparation method of novel intelligent invisible anti-theft network line comprises the steps:
(1), the insulating protective layer take-up strap is wrapped on built-in bare conductor.The preferred nickel-clad copper twisted wire of built-in bare conductor, copper can prevent from getting rusty aging after nickel plating, also can greatly improve intensity, the rust resistance of copper and improve its resistance to elevated temperatures.The insulating protective layer take-up strap is wrapped on the nickel-clad copper twisted wire time by lapping device; wrapping angle is 30 °～50 °; the superimposition rate is controlled at 100～200%; wrapped tension force voltage is 5～10V; wrapped rotating speed is 200～300r/min; draw that to get rotating speed be 200～300r/min, takeup tension voltage is 8～10V.Carry out shaping after wrapped the finishing, to improve insulating barrier compactness, further promote anti-breakdown strength, the setting temperature of shaping is 100～200 ℃.
(2), carry out sintering processes.Wrapped complete bare conductor is carried out sintering by sintering furnace, and sintering temperature is controlled at 380 ℃～400 ℃, and take-up speed is 200～300r/min, draws that to get rotating speed be 200～300r/min, and takeup tension voltage is 8～10V.Sintering processes can be to be undertaken by sintering equipment.
(3), the built-in bare conductor outer surface after the above-mentioned sintering processes is twisted into one with steel wire, then at surperficial lapped insulation protective layer take-up strap, carry out at last sintering processes.The method of lapped insulation protective layer take-up strap is identical with step 1; The method of sintering processes is identical with step 2.
Compared with prior art, the present invention has following characteristics: (1), transparency are good, and be more transparent than common stealth protection netting twine; 5 meters outward can be substantially stealthy, do not affect architectural style; (2), to have weatherability corrosion-resistant, but long term exposure aging under sunshine, do not ftracture; (3), heatproof degree scope is wide, can under-65 ℃～250 ℃ environment, use for a long time; (4), electrical insulation capability is good, withstand voltage up to 6000～8000V, can be connected with full Intelligent alarm system, reaches the intelligent anti-theft function of real high voltage low current.
Description of drawings
Fig. 1 is the structural representation of hydraulic power unit;
Fig. 2 is the structural representation of cutting machine.
The specific embodiment
The present invention will be described in detail below in conjunction with specific embodiment.
A kind of preparation method of insulating protective layer of invisible anti-theft network line mainly comprises the making of modified polytetrafluoroethylresin resin and making two steps of insulating protective layer take-up strap:
One, the making of modified polytetrafluoroethyldispersion dispersion resin comprises the steps:
For reaching best ageing-resistant, corrosion-resistant and effect that electrical insulation capability is good; the present invention selects the polytetrafluoroethylene (PTFE) with " King " laudatory title; because polytetrafluoroethylene (PTFE) is the straight chain type thermoplastic high molecular compound; melt viscosity is high; degree of crystallinity is high; become the milky opaque body behind the sintering, so the present invention is the complete transparent body for making final insulating protective layer, polyflon is carried out modification.
(1), at first polymerization is used the medium deionized water, initiator ammonium persulfate, perfluoro caprylic acid and the ammoniacal liquor of the total consumption 65～75% of main dispersant, dispersion aids paraffin, pH value is regulated and the antitack agent succinic acid adds in the reactor in proportion, start agitator and vacuum in the still be evacuated to-0.085～-0.09Mpa after, fill out again tetrafluoroethene gas phase monomer the still internal pressure risen to the malleation that is no more than 0.045Mpa, sample analysis also makes oxygen content≤29ppm in the still;
The ratio of each composition in the above-mentioned adding still, by heavy part, when deionized water was 100 parts, ammonium persulfate was 6～12 * 10 take the addition of deionized water as benchmark
-4Part, perfluoro caprylic acid 8～13 * 10
-2Part, percent concentration is 28% ammoniacal liquor 3～5 * 10
-2Part, 3～5 parts in paraffin, succinic acid 1～5 * 10
-2Part.
The ratio of each composition in the above-mentioned adding still, by heavy part, when deionized water was 100 parts, ammonium persulfate was 6 * 10 take the addition of deionized water as benchmark
-4Part, perfluoro caprylic acid 8 * 10
-2Part, percent concentration is 28% ammoniacal liquor 3 * 10
-2Part, 3 parts in paraffin, succinic acid 1 * 10
-2Part.
The ratio of each composition in the above-mentioned adding still, by heavy part, when deionized water was 100 parts, ammonium persulfate was 12 * 10 take the addition of deionized water as benchmark
-4Part, perfluoro caprylic acid 13 * 10
-2Part, percent concentration is 28% ammoniacal liquor 5 * 10
-2Part, 5 parts in paraffin, succinic acid 5 * 10
-2Part.
The preferred proportion of each composition in the above-mentioned adding still, by heavy part, when deionized water was 100 parts, ammonium persulfate was 9 * 10 take the addition of deionized water as benchmark
-4Part, perfluoro caprylic acid 10 * 10
-2Part, percent concentration is 28% ammoniacal liquor 4 * 10
-2Part, 4 parts in paraffin, succinic acid 3 * 10
-2Part.
(2), polymerisation: after oxygen content is qualified, after the material in reactor temperature risen to 60～70 ℃, constantly be filled with tetrafluoroethene gas phase monomer and volumetric concentration in the still and be 0.003～0.5% perfluoro propyl vinyl ether gas phase monomer to still internal pressure and reach 2～3.6Mpa, when the tetrafluoroethene gas phase monomer that is filled with reach total amount in the reactor 6～15% the time, add remaining main dispersant: perfluoro caprylic acid and ammoniacal liquor; Temperature in the reactor remains in 50～120 ℃, stops after the tetrafluoroethylene monomer total amount in being filled with still reaches 50～60 parts adding, and to the reaction end, stops to stir.Optimum temperature in the reactor remains in 80～100 ℃.
(3), after reaction finishes, with unreacted monomer suction recycling can, emulsion is lower than 40 ℃ through being cooled to, behind the recovery solid paraffin, obtain polymerized emulsion, this polymerized emulsion is again through namely obtaining modified polytetrafluoroethyldispersion dispersion resin after conventional method cohesion, washing, the dry processing.Preferably 10～40 ℃ of the temperature of recovery solid paraffin.
Above-mentioned each composition: tetrafluoroethene and perfluoro propyl vinyl ether monomer purity 〉=99.999%, paraffin are food-grade, and its resistivity of deionized water is 90～1,100,000 ohm-cms, and colourity is 2～3 grades, and it is pure that all the other compositions are analysis.
Two, the making of insulating protective layer take-up strap comprises the steps:
(1), will more than the modified polytetrafluoroethyldispersion dispersion resin that obtains refrigerate 20～24h at 8～15 ℃, then at dust-free workshop raw material is sieved with 8～10 purpose sieves, to stop dust to the impact of electrical property.Modified polytetrafluoroethyldispersion dispersion resin preferably refrigerates 21～22h at 10～13 ℃.
(2), modified polytetrafluoroethyldispersion dispersion resin and boosting agent after will sieving be mixed into the paste shape, leaves standstill 10～15h; The parts by weight proportioning of modified polytetrafluoroethyldispersion dispersion resin and boosting agent is: modified polytetrafluoroethyldispersion dispersion resin 60～90, boosting agent 20～30.Described boosting agent can be for taking off aromatic hydrocarbon solvent oil EXXSOL D60.
(3), leave standstill after, compound is stirred, rotating speed is 15～20r/min, the time is 10～20min; The boosting agent is evenly mixed with raw material.
(4), with the raw material that stirs, leave standstill 10～12h, make the boosting agent to raw material modified polytetrafluoroethyldispersion dispersion resin infiltration, then carry out maturation process at 50 ℃～70 ℃, the time is 20～24h; Maturation process can be to carry out slaking in baking oven, and the purpose of slaking is to make the boosting agent to the further fully infiltration of raw material modified polytetrafluoroethyldispersion dispersion resin by heating.
(5), be 2.5～3.8Mpa at pressure; Compression speed is 45～75mm/min, and the dwell time is preformed under 1～8min, makes blank; About the diameter little 1mm of the diameter in the blank chamber of preformed equipment than pushing material chamber, preformed equipment can be hydraulic power unit.As shown in Figure 1, hydraulic power unit mainly comprises material chamber 2 and hydraulic cylinder 1, and the pushing material is placed with mixed raw material in the chamber 2, and hydraulic cylinder 1 pushes the mixed raw material in the material chamber 2 by depression bar.
(6), blank is pushed, through cutting into fibre strip; A pushing mouthful mould material cavity temperature is controlled at 50 ℃～70 ℃, and the cone angle of the pushing mould that pushes is 30～45 degree, and compression ratio is 80～130; Wherein, compression ratio is the sectional area (S) in material chamber and the ratio of the sectional area (S ') of mouthful mould.
(7), fibre strip being carried out two roll-ins prolongs, roller temperature is controlled at 50 ℃～70 ℃ during calendering, rolling velocity is controlled at 0.5～5m/min, and the power that produces in the roller operation process makes fiber be oriented flat sheet prefabrication along direction of advance, and rolling is neat;
(8), will become the boosting agent in the flat sheet prefabrication to remove, temperature is controlled at 100～200 ℃.
(9), cut into needed specification finally by cutting machine, make the insulating protective layer take-up strap.Described cutting machine as shown in Figure 2, comprise unreeling and roll roller 4, deviation correcting device 8 and a minimum wind-up roll, be provided with some deflector rolls between winding up roller 4, the deviation correcting device 8, between deviation correcting device and wind-up roll, be provided with slitting cutter rest 7, cutting blade is installed in the slitting cutter rest.The prefabrication of let off roll 4 by some deflector rolls after in deviation correcting device 8 adjustment of rectifying a deviation; then enter slitting cutter rest 7 by guide reel; blades in the slitting cutter rest 7 cut into satisfactory some insulating protective layer take-up straps with prefabrication, are wound at the first wind-up roll 5 and the second wind-up roll 6 at last to be final products.
A kind of preparation method of novel intelligent invisible anti-theft network line comprises the steps:
(1), the insulating protective layer take-up strap is wrapped on built-in bare conductor.The preferred nickel-clad copper twisted wire of built-in bare conductor, copper can prevent from getting rusty aging after nickel plating, also can greatly improve intensity, the rust resistance of copper and improve its resistance to elevated temperatures.The insulating protective layer take-up strap is wrapped on the nickel-clad copper twisted wire by lapping device; wrapping angle is 30 °～50 °; the superimposition rate is controlled at 100～200%; wrapped tension force voltage is 5～10V; wrapped rotating speed is 200～300r/min; draw that to get rotating speed be 200～300r/min, takeup tension voltage is 8～10V.Carry out shaping after wrapped the finishing, to improve insulating barrier compactness, further promote anti-breakdown strength, the setting temperature of shaping is 100～200 ℃.
(2), carry out sintering processes.Wrapped complete bare conductor is carried out sintering by sintering furnace, and sintering temperature is controlled at 380 ℃～400 ℃, and take-up speed is 200～300r/min, draws that to get rotating speed be 200～300r/min, and takeup tension voltage is 8～10V.Sintering processes can be to be undertaken by sintering equipment.
(3), the latter made wire external application of above-mentioned sintering processes steel wire is twisted into one, then to be twisted into the surperficial lapped insulation protective layer take-up strap after the one with steel wire, carry out at last sintering processes.The method of lapped insulation protective layer take-up strap is identical with step 1; The method of sintering processes is identical with step 2.Finally make novel intelligent invisible anti-theft network line.Steel wire adopts 316 stainless steels to reel off raw silk from cocoons and forms, the bearing capacity 〉=105kg of every steel wire.
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, if these are changed and modification belongs within claim of the present invention and the equivalent technologies scope, then the present invention also comprises these changes and modification.
Claims (8)
1. the preparation method of the insulating protective layer of invisible anti-theft network line mainly comprises the making of modified polytetrafluoroethylresin resin and making two steps of insulating protective layer take-up strap:
One, the making of modified polytetrafluoroethyldispersion dispersion resin comprises the steps:
(1), at first polymerization is used the medium deionized water, initiator ammonium persulfate, perfluoro caprylic acid and the ammoniacal liquor of the total consumption 65～75% of main dispersant, dispersion aids paraffin, pH value is regulated and the antitack agent succinic acid adds in the reactor in proportion, start agitator and vacuum in the still be evacuated to-0.085～-0.09Mpa after, fill out again tetrafluoroethene gas phase monomer the still internal pressure risen to the malleation that is no more than 0.045Mpa, sample analysis also makes oxygen content≤29ppm in the still; The ratio of each composition in the above-mentioned adding still, by heavy part, when deionized water was 100 parts, ammonium persulfate was 6～12 * 10 take the addition of deionized water as benchmark
-4Part, perfluoro caprylic acid 8～13 * 10
-2Part, percent concentration is 28% ammoniacal liquor 3～5 * 10
-2Part, 3～5 parts in paraffin, succinic acid 1～5 * 10
-2Part;
(2), polymerisation: after oxygen content is qualified, after the material in reactor temperature risen to 60～70 ℃, constantly be filled with tetrafluoroethene gas phase monomer and volumetric concentration in the still and be 0.003～0.5% perfluoro propyl vinyl ether gas phase monomer to still internal pressure and reach 2～3.6Mpa, when the tetrafluoroethene gas phase monomer that is filled with reach total amount in the reactor 6～15% the time, add remaining main dispersant perfluoro caprylic acid and ammoniacal liquor; Temperature in the reactor remains in 50～120 ℃, stops after the tetrafluoroethylene monomer total amount in being filled with still reaches 50～60 parts adding, and to the reaction end, stops to stir;
(3), after reaction finishes, with unreacted monomer suction recycling can, emulsion is lower than 40 ℃ through being cooled to, behind the recovery solid paraffin, obtain polymerized emulsion, this polymerized emulsion is again through namely obtaining modified polytetrafluoroethyldispersion dispersion resin after conventional method cohesion, washing, the dry processing;
Two, the making of insulating protective layer take-up strap comprises the steps:
(1), will more than the modified polytetrafluoroethyldispersion dispersion resin that obtains refrigerate 20～24h at 8～15 ℃, then at dust-free workshop raw material is sieved with 8～10 purpose sieves;
(2), modified polytetrafluoroethyldispersion dispersion resin and boosting agent after will sieving be mixed into the paste shape, leaves standstill 10～15h; The parts by weight proportioning of modified polytetrafluoroethyldispersion dispersion resin and boosting agent is: modified polytetrafluoroethyldispersion dispersion resin 60～90, boosting agent 20～30;
(3), leave standstill after, compound is stirred, rotating speed is 15～20r/min, the time is 10～20min; The boosting agent is evenly mixed with raw material;
(4), the raw material that stirs, leave standstill 10～12h, the boosting agent is permeated to raw material, then carry out maturation process at 50 ℃～70 ℃, the time is 20～24h;
(5), be 2.5～3.8Mpa at pressure; Compression speed is 45～75mm/min, and the dwell time is preformed under 1～8min, makes blank;
(6), blank is pushed, through cutting into fibre strip;
(7), fibre strip being carried out two roll-ins prolongs, roller temperature is controlled at 50 ℃～70 ℃ during calendering, rolling velocity is controlled at 0.5～5m/min, and the power that produces in the roller operation process makes fiber be oriented flat sheet prefabrication along direction of advance, and rolling is neat;
(8), to removing through the boosting agent in the flat sheet prefabrication made of calendering, temperature is controlled at 100～200 ℃;
(9), cut into the specification of setting finally by cutting machine, make the insulating protective layer take-up strap.
2. the preparation method of the insulating protective layer of invisible anti-theft network line as claimed in claim 1; it is characterized in that: described tetrafluoroethene and perfluoro propyl vinyl ether monomer purity 〉=99.999%; the deionization resistivity of water is 90～1,100,000 ohm-cms, and colourity is 2～3 grades.
3. the preparation method of the insulating protective layer of invisible anti-theft network line as claimed in claim 1 is characterized in that: described boosting agent is for taking off aromatic hydrocarbon solvent oil EXXSOL D60.
4. the preparation method of the insulating protective layer of invisible anti-theft network line as claimed in claim 1 is characterized in that: the mouth mould material cavity temperature of described pushing is controlled at 50 ℃～70 ℃, and the cone angle of the pushing mould that pushes is 30～45 degree, and compression ratio is 80～130.
5. the preparation method of a novel intelligent invisible anti-theft network line is characterized in that: comprise the steps:
(1), the arbitrary insulating protective layer that makes of claim 1-4 is wrapped on built-in bare conductor;
(2), carry out sintering processes; Wrapped complete bare conductor is carried out sintering by sintering furnace, and sintering temperature is controlled at 380 ℃～400 ℃, and take-up speed is 200～300r/min, draws that to get rotating speed be 200～300r/min, and takeup tension voltage is 8～10V;
(3), the latter made wire external application of above-mentioned sintering processes steel wire is twisted into one, then to be twisted into the surperficial lapped insulation protective layer take-up strap after the one with steel wire, carry out at last sintering processes.
6. the preparation method of a kind of novel intelligent invisible anti-theft network line as claimed in claim 5; it is characterized in that: the wrapped wrapping angle on bare conductor of described insulating protective layer take-up strap is 30 °～50 °; the superimposition rate is controlled at 100～200%; wrapped tension force voltage is 5～10V; wrapped rotating speed is 200～300r/min; draw that to get rotating speed be 200～300r/min, takeup tension voltage is 8～10V.
7. the preparation method of a kind of novel intelligent invisible anti-theft network line as claimed in claim 5, it is characterized in that: the insulating protective layer take-up strap is wrapped to carry out shaping after on the bare conductor, the setting temperature of shaping is 100～200 ℃.
8. the preparation method of a kind of novel intelligent invisible anti-theft network line as claimed in claim 5, it is characterized in that: described built-in bare conductor is the nickel-clad copper twisted wire.
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| US3855191A (en) * | 1973-04-04 | 1974-12-17 | Du Pont | Polytetrafluoroethylene molding powders of tetrafluoroethylene and perfluoro (alkyl vinyl ether) copolymer |
| CN2711356Y (en) * | 2004-05-17 | 2005-07-20 | 李明斌 | Theft-proof window with invisible screen |
| CN101125900A (en) * | 2007-10-09 | 2008-02-20 | 上海三爱富新材料股份有限公司 | Method for preparing suspension modified polytetrafluoroethylene |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855191A (en) * | 1973-04-04 | 1974-12-17 | Du Pont | Polytetrafluoroethylene molding powders of tetrafluoroethylene and perfluoro (alkyl vinyl ether) copolymer |
| CN2711356Y (en) * | 2004-05-17 | 2005-07-20 | 李明斌 | Theft-proof window with invisible screen |
| CN101125900A (en) * | 2007-10-09 | 2008-02-20 | 上海三爱富新材料股份有限公司 | Method for preparing suspension modified polytetrafluoroethylene |
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