CN103351612A - Preparation method for nylon capable of screening electromagnetic waves - Google Patents
Preparation method for nylon capable of screening electromagnetic waves Download PDFInfo
- Publication number
- CN103351612A CN103351612A CN2013102864545A CN201310286454A CN103351612A CN 103351612 A CN103351612 A CN 103351612A CN 2013102864545 A CN2013102864545 A CN 2013102864545A CN 201310286454 A CN201310286454 A CN 201310286454A CN 103351612 A CN103351612 A CN 103351612A
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- nylon
- tynex
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention relates to a preparation method for nylon capable of screening electromagnetic waves. The method comprises the following steps: weighing polyamide fibers, drying for 4 hours at the temperature of 90 DEG C, uniformly mixing with silicon dioxide, zirconium dioxide, an interface coupling agent, a toughening agent and a disperse lubricating agent in a high-speed mixer for 5 minutes at a speed of 1100 r/min, and discharging; adding a uniformly mixed material into a double-screw extruder with a length-to-diameter ratio (L/D) of 40, wherein the processing temperature of the double-screw extruder is as follows: the first-region temperature is 180 DEG C, the second-region temperature is 185 DEG C, the third-region temperature is 195 DEG C, the fourth-region temperature is 210 DEG C, the fifth-region temperature is 215 DEG C, the sixth-region temperature is 225 DEG C, the seventh-region temperature is 235 DEG C and the eighth-region temperature is 240 DEG C, and the rotary speed of a man engine is 320 r/min; and extruding, cooling, drawing, performing air-drying, and dicing to prepare the nylon. The nylon prepared by the method is capable of screening the electromagnetic waves.
Description
Technical field
The present invention relates to the nylon field, specifically, the present invention relates to the preparation method of the electromagnetic nylon of a kind of maskable.
Background technology
Tynex is commonly called as nylon, its purposes is very extensive, automotive industry is usually used in making automobile component such as dashboard, vehicle-body outer panel, inner trim panels, bearing circle, insulating board, door lock, collision bumper, vent-pipe etc., household electric appliances are usually used in making such as refrigerator, televisor, washing machine, vacuum cleaner, food mixer, the housing of telephone set etc., be usually used in making such as sanitary apparatus at architectural decoration, the swimming pool lining, tubing and pipe fitting etc. are in addition also for the manufacture of safety helmet, the motorcycle plate washer, heel, the snowfield sporting goods, toy, clock, casing of loudspeaker box, suitcase, button, daily necessities and the nameplates such as minaudiere, the advertising matters such as ornament.
Although tynex is widely used, because the characteristic of the molecular structure performance of tynex own, so that tynex is not enough aspect shielding.
Summary of the invention
The object of the present invention is to provide the preparation method of the electromagnetic nylon of a kind of maskable.
In order to realize purpose of the present invention, the invention provides the preparation method of the electromagnetic nylon of a kind of maskable, it is lower dry 4 hours in 90 ℃ that the method comprises the following steps: to take by weighing tynex, then with silicon-dioxide, zirconium dioxide, interface coupling agent, toughner and dispersed lubricant, in homogenizer, stirred 5 minutes with 1100 rev/mins, after evenly, emit; To add length-to-diameter ratio (L/D) be in 40 the twin screw extruder mixing equal materials of spoon, the processing temperature of twin screw extruder: 180 ℃ of district's temperature, two district's temperature are 185 ℃, three district's temperature are 195 ℃, and four district's temperature are 210 ℃, and five district's temperature are 215 ℃, six district's temperature are 225 ℃, seven district's temperature are 235 ℃, and eight district's temperature are 240 ℃, and engine speed is 320 to turn/min; Cool off check rod, air-dry pelletizing through after extruding, namely prepare the electromagnetic nylon of maskable of the present invention.
Preferably, the consumption of various raw materials is as follows:
Tynex 40～70 weight parts;
Interface coupling agent 3～8 weight parts;
Toughner 3～10 weight parts;
Dispersed lubricant 0.5～1.0 weight part;
Silicon-dioxide 5～10 weight parts;
Zirconium dioxide 10～15 weight parts.
Preferably, described interface coupling agent is γ-aminopropyl triethoxysilane (KH550), γ-glycidyl ether oxygen propyl trimethoxy silicane (KH560), γ-(methacryloxypropyl) propyl trimethoxy silicane (KH570), tynex grafting toxilic acid (tynex-g-MAH), styrene-maleic anhydride copolymer (SMA), Research of Grafting Malaic Anhydride Onto Polyethylene (LDPE-g-MAH), linear low density polyethylene grafted maleic anhydride (LLDPE-g-MAH), in the Racemic glycidol ether type epoxy one or more.
Preferably, described toughner is MBS (MBS), MBS, hydrogenated styrene/Butadiene/Styrene) in the segmented copolymer (SEBS) one or more.
Preferably, described dispersed lubricant is one or more in glyceryl monostearate, Tristearoylglycerol, ethylene bis stearamide, the bimonthly osmanthus of ethylene acid amides, the two amine hydroxybenzenes of ethylene, lower molecular weight ionomer, ethylene-acrylic acid copolymer, the ethylene-vinyl acetate copolymer.
Preferably, the consumption of various raw materials is as follows:
Tynex 60 weight parts;
γ-aminopropyl triethoxysilane 5 weight parts;
MBS 5 weight parts;
Glyceryl monostearate 0.8 weight part;
Silicon-dioxide 8 weight parts;
Zirconium dioxide 13 weight parts.
The nylon maskable hertzian wave that method of the present invention makes.
Embodiment
Below the invention will be further described for the description by embodiment, but this is not to be limitation of the present invention, those skilled in the art are according to basic thought of the present invention, can make various modifications or improvement, but only otherwise break away from basic thought of the present invention, all within the scope of the present invention.
Embodiment 1
It is lower dry 4 hours in 90 ℃ to take by weighing 600 tynexs that restrain, then with silicon-dioxide 80 grams, zirconium dioxide 130 grams, γ-aminopropyl triethoxysilane 50 grams, MBS 50 grams and glyceryl monostearate 8 grams, in homogenizer, stirred 5 minutes with 1100 rev/mins, after evenly, emit.To add length-to-diameter ratio (L/D) be in 40 the twin screw extruder mixing equal materials of spoon, the processing temperature of twin screw extruder: 180 ℃ of district's temperature, two district's temperature are 185 ℃, three district's temperature are 195 ℃, and four district's temperature are 210 ℃, and five district's temperature are 215 ℃, six district's temperature are 225 ℃, seven district's temperature are 235 ℃, and eight district's temperature are 240 ℃, and engine speed is 320 to turn/min; Cool off check rod, air-dry pelletizing through after extruding, namely prepare the electromagnetic nylon of maskable of the present invention.
Embodiment 2
According to preparing the electromagnetic nylon of maskable with embodiment 1 identical mode, difference is not use silicon-dioxide.
Embodiment 3
According to preparing the electromagnetic nylon of maskable with embodiment 1 identical mode, difference is not use zirconium dioxide.
Experimental example
Test electromagnetic wave shielding performance by GB50057-94 (2000 editions) requirement, the result is as follows: the electromagnetic shielding efficiency of embodiment 1 (dB) is 102, the surface resistivity (Ω) of the electromagnetic nylon of maskable of embodiment 2 is that the surface resistivity (Ω) of the electromagnetic nylon of maskable of 65, embodiment 3 is 72.This shows, add silicon-dioxide and zirconium dioxide and produced unexpectedly synergy.
Claims (6)
1. the preparation method of the electromagnetic nylon of maskable, it is lower dry 4 hours in 90 ℃ that the method comprises the following steps: to take by weighing tynex, then with silicon-dioxide, zirconium dioxide, interface coupling agent, toughner and dispersed lubricant, in homogenizer, stirred 5 minutes with 1100 rev/mins, after evenly, emit; To add length-to-diameter ratio (L/D) be in 40 the twin screw extruder mixing equal materials of spoon, the processing temperature of twin screw extruder: 180 ℃ of district's temperature, two district's temperature are 185 ℃, three district's temperature are 195 ℃, and four district's temperature are 210 ℃, and five district's temperature are 215 ℃, six district's temperature are 225 ℃, seven district's temperature are 235 ℃, and eight district's temperature are 240 ℃, and engine speed is 320 to turn/min; Cool off check rod, air-dry pelletizing through after extruding, namely prepare the electromagnetic nylon of maskable of the present invention.
2. method according to claim 1 is characterized in that, the consumption of various raw materials is as follows:
Tynex 40～70 weight parts;
Interface coupling agent 3～8 weight parts;
Toughner 3～10 weight parts;
Dispersed lubricant 0.5～1.0 weight part;
Silicon-dioxide 5～10 weight parts;
Zirconium dioxide 10～15 weight parts.
3. method according to claim 1, it is characterized in that described interface coupling agent is γ-aminopropyl triethoxysilane (KH550), γ-glycidyl ether oxygen propyl trimethoxy silicane (KH560), γ-(methacryloxypropyl) propyl trimethoxy silicane (KH570), tynex grafting toxilic acid (tynex-g-MAH), styrene-maleic anhydride copolymer (SMA), Research of Grafting Malaic Anhydride Onto Polyethylene (LDPE-g-MAH), linear low density polyethylene grafted maleic anhydride (LLDPE-g-MAH), in the Racemic glycidol ether type epoxy one or more.
4. method according to claim 1, it is characterized in that described toughner is MBS (MBS), MBS, hydrogenated styrene/Butadiene/Styrene) in the segmented copolymer (SEBS) one or more.
5. method according to claim 1, it is characterized in that described dispersed lubricant is one or more in glyceryl monostearate, Tristearoylglycerol, ethylene bis stearamide, the bimonthly osmanthus of ethylene acid amides, the two amine hydroxybenzenes of ethylene, lower molecular weight ionomer, ethylene-acrylic acid copolymer, the ethylene-vinyl acetate copolymer.
6. each described method in 5 according to claim 2 is characterized in that the consumption of various raw materials is as follows:
Tynex 60 weight parts;
γ-aminopropyl triethoxysilane 5 weight parts;
MBS 5 weight parts;
Glyceryl monostearate 0.8 weight part;
Silicon-dioxide 8 weight parts;
Zirconium dioxide 13 weight parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286454.5A CN103351612B (en) | 2013-07-08 | 2013-07-08 | The preparation method of the electromagnetic nylon of a kind of maskable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286454.5A CN103351612B (en) | 2013-07-08 | 2013-07-08 | The preparation method of the electromagnetic nylon of a kind of maskable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103351612A true CN103351612A (en) | 2013-10-16 |
| CN103351612B CN103351612B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310286454.5A Active CN103351612B (en) | 2013-07-08 | 2013-07-08 | The preparation method of the electromagnetic nylon of a kind of maskable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189417A (en) * | 2017-07-18 | 2017-09-22 | 梧州井儿铺贸易有限公司 | A kind of nylon of maskable electromagnetic wave |
| CN115403924A (en) * | 2022-09-19 | 2022-11-29 | 会通新材料股份有限公司 | Wave-absorbing heat-conducting polyamide composition and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285170A (en) * | 2008-05-08 | 2008-10-15 | 兰州大学 | Process for preparing wide-band and wave-absorbing magnetic multilayer membranous |
| WO2008134030A1 (en) * | 2007-04-24 | 2008-11-06 | E. I. Du Pont De Nemours And Company | Thermoplastic resin composition having electromagnetic interference shielding properties |
| CN102942782A (en) * | 2012-10-24 | 2013-02-27 | 常州大学 | Continuous carbon fiber reinforced nylon composite material used under continuous high temperature environment, and preparation method thereof |
-
2013
- 2013-07-08 CN CN201310286454.5A patent/CN103351612B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008134030A1 (en) * | 2007-04-24 | 2008-11-06 | E. I. Du Pont De Nemours And Company | Thermoplastic resin composition having electromagnetic interference shielding properties |
| CN101285170A (en) * | 2008-05-08 | 2008-10-15 | 兰州大学 | Process for preparing wide-band and wave-absorbing magnetic multilayer membranous |
| CN102942782A (en) * | 2012-10-24 | 2013-02-27 | 常州大学 | Continuous carbon fiber reinforced nylon composite material used under continuous high temperature environment, and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189417A (en) * | 2017-07-18 | 2017-09-22 | 梧州井儿铺贸易有限公司 | A kind of nylon of maskable electromagnetic wave |
| CN115403924A (en) * | 2022-09-19 | 2022-11-29 | 会通新材料股份有限公司 | Wave-absorbing heat-conducting polyamide composition and preparation method thereof |
| CN115403924B (en) * | 2022-09-19 | 2024-02-20 | 会通新材料股份有限公司 | Heat-absorbing polyamide composition and preparation method thereof |
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| Publication number | Publication date |
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| CN103351612B (en) | 2015-10-28 |
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