CN112266599B - Processing method of modified engineering plastic product and application of processing method in cable clamp - Google Patents
Processing method of modified engineering plastic product and application of processing method in cable clamp Download PDFInfo
- Publication number
- CN112266599B CN112266599B CN202011191730.6A CN202011191730A CN112266599B CN 112266599 B CN112266599 B CN 112266599B CN 202011191730 A CN202011191730 A CN 202011191730A CN 112266599 B CN112266599 B CN 112266599B
- Authority
- CN
- China
- Prior art keywords
- temperature
- parts
- engineering plastic
- plastic product
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a processing method of a modified engineering plastic product and application thereof in cable clamp processing, wherein the modified engineering plastic product is obtained by carrying out main raw material pre-preparation and glass fiber pre-treatment, then mixing, extruding and granulating all components, carrying out injection molding on a granulated material to process the granulated material into a product blank body, and then applying a protective layer on the surface of the product blank body; this scheme has introduced the technical link that keeps warm and eliminate stress on traditional engineering plastics processing scheme basis, still carries out the effect that physical vapor deposition cladding material improves its isolation oxygen, isolation ultraviolet to the goods surface simultaneously, has improved the ageing resistance of product greatly, in addition, still carries out the preliminary treatment through low molecular weight polyethylene, TAF emollient to the fine glass of ECR for the fine glass of ECR can be better mix with the main raw materials, avoid floating fine and improve the dispersibility, improve the intensity of goods.
Description
Technical Field
The invention relates to the field of engineering cable arrangement auxiliary devices, in particular to a processing method of a modified engineering plastic product and application of the processing method to cable fixture processing.
Background
The cable fixture is used as a common auxiliary fixing part in the process of laying engineering cables, because the environment for laying engineering cables is relatively changed greatly, most of the traditional engineering cable fixtures are metal parts, and the metal parts can be directly contacted with humid air or moisture in the process of installation and use of outdoor engineering, so that the situation of corrosion damage is caused.
Disclosure of Invention
Aiming at the situation of the prior art, the invention aims to provide a processing method of a modified engineering plastic product with reliable operation, flexible and stable implementation, high product structural strength and good aging resistance, and the processing method is applied to processing of cable clamps.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 55-70 parts of polycarbonate resin, 25-35 parts of acrylonitrile-butadiene-styrene graft copolymer and 5-8 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03% to prepare a pretreated main raw material;
(2) Taking 2-3 parts of polyethylene wax, placing the polyethylene wax in an environment of 90-120 ℃ to soften the polyethylene wax into a liquid state, then soaking 1-2 parts of short ECR glass fiber with the length of 1-3 mm in the polyethylene wax for processing for 1-2 min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 0.5-1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring, fishing out the short ECR glass fiber, obtaining the soaked short ECR glass fiber and lubricant residual material, respectively naturally cooling the short ECR glass fiber and the lubricant residual material, and then placing the ECR cooled short ECR glass fiber into a mortar for grinding and dispersing to obtain pretreated glass fiber;
(3) Putting the pretreated main raw material, the rest of the lubricant, 1-1.5 parts of compatilizer, 1-2.5 parts of flame retardant, 0.5-1.5 parts of 2, 6-di-tert-butyl-p-cresol, 1-5 parts of flexibilizer and 0.5-1.5 parts of light shielding agent into a mixer, mixing for 25-40 min at the rotating speed of 400-600 r/min, then maintaining the temperature of the mixing environment at 40-60 ℃, adding the pretreated glass fiber, and mixing for 15-25 min at the rotating speed of 300-400 r/min to obtain a mixture;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min of obtaining the mixture, putting the mixture into the feeding port, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches;
(5) Mixing the modified master batch and the color master batch according to a preset metering ratio, adding the mixture into an injection molding machine for injection molding, and obtaining a blank of a modified engineering plastic product after cooling, demolding and shearing a rubber opening;
(6) And applying a protective layer on the surface of the modified engineering plastic product blank to obtain the modified engineering plastic product.
As a possible embodiment, further, in the step (6), the method for applying the protective layer on the surface of the modified engineering plastic product blank is to apply an aluminum film with a thickness of 2 to 3 μm by a physical vapor deposition method.
As a preferred implementation choice, the physical vapor deposition method is magnetron sputtering, wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 60-80 ℃, and argon of 170sccm is also introduced as protective gas.
As a possible embodiment, further, in the step (3), the compatilizer is styrene-maleic anhydride copolymer, the flame retardant is phenoxy terminated tetrabromobisphenol a carbonate oligomer, the toughening agent is high rubber powder, and the light shielding agent is thermoplastic polyurethane elastomer.
As a possible implementation manner, further, in the step (3), during the mixing process of the mixer, nitrogen is continuously introduced as a protective gas to exhaust the air in the mixer.
As a possible implementation manner, further, in the step (4), the screw rotation speed of the twin-screw extruder is 210-240 r/min, and six heating zones are formed between the feeding port of the twin-screw extruder and the extrusion end of the twin-screw extruder, wherein the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃.
As a possible implementation manner, in the step (5), the addition amount of the color master batch is 0.1% to 1% of the addition amount of the modified master batch.
As a possible embodiment, further, in the step (5), the injection pressure of the injection molding machine is 60 to 80MPa, the melt temperature is 260 to 270 ℃, the temperature in the cylinder is maintained at 200 to 210 ℃, and the mold temperature is 70 to 90 ℃.
As a possible implementation mode, further, in the step (5), the surface of the prepared modified engineering plastic product blank is a frosted surface, and the blank is subjected to heat preservation treatment at the temperature of 50-75 ℃ for 6-8 hours to eliminate internal stress.
As a preferred embodiment, the present invention is a method for processing a modified engineering plastic product, which comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the moisture content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03 percent to prepare a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of short ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, then fishing out the short ECR glass fibers to obtain the soaked short ECR glass fibers and lubricant residual materials, respectively carrying out natural cooling treatment on the short ECR glass fibers and the lubricant residual materials, and then placing the ECR cooled short ECR glass fibers into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the rest of the lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high-rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing and treating for 30min at the rotating speed of 500r/min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding the pretreated glass fiber, and mixing and treating for 20min at the rotating speed of 350r/min to obtain a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 80Mpa, the melt stock temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
An engineering cable clamp is prepared by the processing method of the modified engineering plastic product.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: this scheme has introduced the technical link that keeps warm and eliminate stress on traditional engineering plastics processing scheme basis, still carries out the effect that physical vapor deposition cladding material improves its isolation oxygen, isolation ultraviolet to the goods surface simultaneously, has improved the ageing resistance of product greatly, in addition, still carries out the preliminary treatment through low molecular weight polyethylene, TAF emollient to the fine glass of ECR for the fine glass of ECR can be better mix with the main raw materials, avoid floating fine and improve the dispersibility, improve the intensity of goods.
Detailed Description
Example 1
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 55 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and making the water content of the mixture lower than 0.03% to obtain a pretreated main raw material;
(2) Taking 2 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 1.5 parts of chopped ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 1min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 0.5 part of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, fishing out the chopped ECR glass fibers to obtain the dipped chopped ECR glass fibers and residual lubricant materials, respectively carrying out natural cooling treatment on the chopped ECR glass fibers and the residual lubricant materials, and then placing the chopped ECR glass fibers cooled by ECR into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the rest of the lubricant, 1 part of styrene-maleic anhydride copolymer, 1 part of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 0.5 part of 2, 6-ditert-butyl-p-cresol, 2 parts of high rubber powder and 1 part of thermoplastic polyurethane elastomer into the mixer, mixing and treating for 30min at the rotating speed of 400r/min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding pretreated glass fiber, and mixing and treating for 25min at the rotating speed of 300r/min to obtain a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.2, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 50 ℃ for heat preservation treatment for 8 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 60Mpa, the melt temperature is 260 ℃, the temperature in a charging barrel is maintained at 200 ℃, and the mold temperature is 70 ℃;
(6) Applying an aluminum film of 2 mu m on the surface of the blank of the modified engineering plastic product as a protective layer by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 60 ℃, and 170sccm argon is also introduced as protective gas.
Example 2
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 30 parts of acrylonitrile-butadiene-styrene graft copolymer and 5 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and making the water content of the mixture lower than 0.03% to obtain a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment of 90 ℃ to soften the polyethylene wax into a liquid state, then soaking 1 part of chopped ECR glass fiber with the length of 2-3 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1 part of TAF lubricant powder into the polyethylene wax and uniformly stirring, fishing out the chopped ECR glass fiber to obtain the dipped chopped ECR glass fiber and lubricant residual material, respectively naturally cooling the chopped ECR glass fiber and the lubricant residual material, and then putting the ECR cooled chopped ECR glass fiber into a mortar for grinding and dispersing to obtain pretreated glass fiber;
(3) Continuously introducing nitrogen as a protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the residual lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 1.5 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high rubber powder and 0.5 part of thermoplastic polyurethane elastomer into the mixer, mixing at the rotating speed of 500r/min for 30min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 40 ℃, adding pretreated glass fibers, mixing at the rotating speed of 400r/min for 15min, and obtaining a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min after obtaining the mixture, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 210r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.1, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 75 ℃ for heat preservation treatment for 6 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 60Mpa, the melt temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 75 ℃;
(6) Applying an aluminum film of 2 mu m on the surface of the blank of the modified engineering plastic product as a protective layer by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 65 ℃, and argon of 170sccm is also introduced as protective gas.
Example 3
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 70 parts of polycarbonate resin, 35 parts of acrylonitrile-butadiene-styrene graft copolymer and 8 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03% to prepare a pretreated main raw material;
(2) Taking 3 parts of polyethylene wax, placing the polyethylene wax in an environment of 120 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of short ECR glass fibers with the length of 1-3 mm in the polyethylene wax for treatment for 1min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 0.5 part of TAF lubricant powder into the polyethylene wax and uniformly stirring, fishing out the short ECR glass fibers, obtaining the soaked short ECR glass fibers and lubricant residual materials, respectively naturally cooling the short ECR glass fibers and the lubricant residual materials, and then placing the ECR cooled short ECR glass fibers into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the rest of the lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.5 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.5 parts of 2, 6-di-tert-butyl-p-cresol, 5 parts of high-rubber powder and 1.5 parts of thermoplastic polyurethane elastomer into the mixer, mixing and treating for 25min at the rotating speed of 600r/min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 55 ℃, adding the pretreated glass fiber, and mixing and treating for 25min at the rotating speed of 300r/min to obtain a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min after obtaining the mixture, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 240r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in a 65 ℃ environment for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 80Mpa, the melt temperature is 260 ℃, the temperature in a charging barrel is maintained at 210 ℃, and the mold temperature is 90 ℃;
(6) Applying an aluminum film of 2 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 80 ℃, and argon of 170sccm is also introduced as protective gas.
Example 4
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the moisture content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03 percent to prepare a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of chopped ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.0 part of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, fishing out the chopped ECR glass fibers to obtain the dipped chopped ECR glass fibers and residual lubricant materials, respectively carrying out natural cooling treatment on the dipped chopped ECR glass fibers and residual lubricant materials, and then placing the chopped ECR glass fibers cooled by ECR into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as a protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the residual lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing at the rotating speed of 500r/min for 30min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding pretreated glass fibers, mixing at the rotating speed of 350r/min for 20min, and obtaining a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 70Mpa, the melt temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
Example 5
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the moisture content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03 percent to prepare a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of chopped ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.0 part of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, fishing out the chopped ECR glass fibers to obtain the dipped chopped ECR glass fibers and residual lubricant materials, respectively carrying out natural cooling treatment on the dipped chopped ECR glass fibers and residual lubricant materials, and then placing the chopped ECR glass fibers cooled by ECR into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the rest of the lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high-rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing and treating for 30min at the rotating speed of 500r/min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding the pretreated glass fiber, and mixing and treating for 20min at the rotating speed of 350r/min to obtain a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 70Mpa, the melt temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 2 mu m on the surface of the blank of the modified engineering plastic product as a protective layer by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
Example 6
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the moisture content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03 percent to prepare a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of chopped ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, fishing out the chopped ECR glass fibers to obtain the dipped chopped ECR glass fibers and residual lubricant materials, respectively carrying out natural cooling treatment on the dipped chopped ECR glass fibers and residual lubricant materials, and then placing the chopped ECR glass fibers cooled by ECR into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as a protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the residual lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing at the rotating speed of 500r/min for 30min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding pretreated glass fibers, mixing at the rotating speed of 350r/min for 20min, and obtaining a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min after obtaining the mixture, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 70Mpa, the melt temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
Example 7
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the moisture content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03 percent to prepare a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of short ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, then fishing out the short ECR glass fibers to obtain the soaked short ECR glass fibers and lubricant residual materials, respectively carrying out natural cooling treatment on the short ECR glass fibers and the lubricant residual materials, and then placing the ECR cooled short ECR glass fibers into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the rest of the lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high-rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing and treating for 30min at the rotating speed of 500r/min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding the pretreated glass fiber, and mixing and treating for 20min at the rotating speed of 350r/min to obtain a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min after obtaining the mixture, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 80Mpa, the melt stock temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
Example 8
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and making the water content of the mixture lower than 0.03% to obtain a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of short ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, then fishing out the short ECR glass fibers to obtain the soaked short ECR glass fibers and lubricant residual materials, respectively carrying out natural cooling treatment on the short ECR glass fibers and the lubricant residual materials, and then placing the ECR cooled short ECR glass fibers into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the rest of the lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high-rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing and treating for 30min at the rotating speed of 500r/min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding the pretreated glass fiber, and mixing and treating for 20min at the rotating speed of 350r/min to obtain a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min after obtaining the mixture, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the color master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing a rubber opening, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of the injection molding machine for injection molding processing is 60Mpa, the melt temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
Example 9
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and making the water content of the mixture lower than 0.03% to obtain a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of short ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, then fishing out the short ECR glass fibers to obtain the soaked short ECR glass fibers and lubricant residual materials, respectively carrying out natural cooling treatment on the short ECR glass fibers and the lubricant residual materials, and then placing the ECR cooled short ECR glass fibers into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Continuously introducing nitrogen as a protective gas into a mixer to discharge air in the mixer, then placing the pretreated main raw material, the residual lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-di-tert-butyl-p-cresol, 3 parts of high rubber powder and 1.0 part of thermoplastic polyurethane elastomer into the mixer, mixing at the rotating speed of 500r/min for 30min under the condition of continuously introducing nitrogen, then maintaining the mixing environment temperature at 50 ℃, adding pretreated glass fibers, mixing at the rotating speed of 350r/min for 20min, and obtaining a mixed material;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, and cooling, demolding and shearing off a rubber port to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding of the injection molding machine is 80Mpa, the melt temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and argon of 170sccm is also introduced as protective gas.
Example 10
A processing method of a modified engineering plastic product comprises the following steps:
(1) Mixing 65 parts of polycarbonate resin, 25 parts of acrylonitrile-butadiene-styrene graft copolymer and 6.5 parts of PET, placing the mixture in an oven for baking treatment to reduce the moisture content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03 percent to prepare a pretreated main raw material;
(2) Taking 2.5 parts of polyethylene wax, placing the polyethylene wax in an environment at 100 ℃ to soften the polyethylene wax into a liquid state, then soaking 2 parts of short ECR glass fibers with the length of 1-2 mm in the polyethylene wax for treatment for 2min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring the mixture, then fishing out the short ECR glass fibers to obtain the soaked short ECR glass fibers and lubricant residual materials, respectively carrying out natural cooling treatment on the short ECR glass fibers and the lubricant residual materials, and then placing the ECR cooled short ECR glass fibers into a mortar for grinding and dispersing to obtain pretreated glass fibers;
(3) Placing the pretreated main raw material, the residual lubricant, 1.5 parts of styrene-maleic anhydride copolymer, 2.0 parts of phenoxy terminated tetrabromobisphenol A carbonate oligomer, 1.0 part of 2, 6-ditert-butyl-p-cresol, 3 parts of high rubber powder and 1.0 part of thermoplastic polyurethane elastomer into a mixer, mixing and treating for 30min at the rotating speed of 500r/min, then maintaining the temperature of a mixing environment at 50 ℃, adding pretreated glass fibers, and mixing and treating for 20min at the rotating speed of 350r/min to obtain a mixture;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min after obtaining the mixture, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches, wherein the screw rotating speed of the double-screw extruder is 220r/min, six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃;
(5) Mixing the modified master batch and the master batch according to the mass ratio of 100: 0.5, adding the mixture into an injection molding machine for injection molding, cooling, demolding and shearing off a rubber port, and then placing the product in an environment of 60 ℃ for heat preservation treatment for 7 hours to eliminate internal stress to prepare a modified engineering plastic product blank with a frosted surface, wherein the injection molding pressure of injection molding processing of the injection molding machine is 80Mpa, the melt stock temperature is 265 ℃, the temperature in a charging barrel is maintained at 205 ℃, and the mold temperature is 80 ℃;
(6) Applying an aluminum film of 3 mu m as a protective layer on the surface of the blank of the modified engineering plastic product by a physical vapor deposition method of magnetron sputtering to obtain the modified engineering plastic product; wherein the sputtering pressure of magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 70 ℃, and 170sccm argon is also introduced as protective gas.
Comparative example 1
The present embodiment is substantially the same as example 7, except that the present embodiment directly produces a blank of a modified engineering plastic product having a frosted surface as a finished product without performing a step of applying an aluminum film on the surface.
Comparative example 2
The scheme is almost the same as that of the embodiment 7, and is different in that the scheme carries out injection molding in an injection molding machine, directly prepares a modified engineering plastic product blank with a frosted surface as a finished product after cooling, demolding and shearing a rubber opening, and does not carry out the steps of carrying out heat preservation treatment for 7 hours at the temperature of 60 ℃ to eliminate internal stress and applying an aluminum film on the surface.
Comparative test
Because the cable clamp has various structures and is not intuitive and has more variables when being subjected to performance tests such as structural strength, tensile strength and the like, the performance of the cable clamp is difficult to quantitatively measure, so that in order to facilitate uniform specification tests, injection molding and proofing are carried out according to the scheme steps of the embodiment 1-the embodiment 10 and the comparative example 1-the comparative example 2 to prepare test sample strips with the same specification, and the following performance tests are carried out:
wherein the following items were tested, respectively:
(1) Whether the glass fiber is exposed or floated on the surface of the sample or not;
(2) Testing corresponding flame retardant property according to UL94 standard;
(3) Testing the bending strength performance according to ISO 178 standard;
(4) Testing tensile strength properties according to ISO 527 standard;
(5) Testing the notch impact resistance according to ISO 180 standard;
the results obtained were as follows:
TABLE 1 comprehensive physical Properties test
| Group \ project | Appearance of the product | Flame retardant properties | Flexural strength/MPa | Tensile strength/MPa | Notched impact resistance/KJ/m 2 |
| Example 1 | Obviously visible floating fiber | V-1 | 108.3 | 64.4 | 70.4 |
| Example 2 | A small amount of floating fiber | V-0 | 106.7 | 63.1 | 68.5 |
| Example 3 | A small amount of floating fiber | V-0 | 107.4 | 63.8 | 69.2 |
| Example 4 | Without floating fiber | V-0 | 107.2 | 63.6 | 69.1 |
| Example 5 | Without floating fiber | V-0 | 107.6 | 64.0 | 69.3 |
| Example 6 | Without floating fiber | V-0 | 107.5 | 63.9 | 69.7 |
| Example 7 | Without floating fiber | V-0 | 110.7 | 64.7 | 71.2 |
| Example 8 | Without floating fiber | V-0 | 109.6 | 64.3 | 70.5 |
| Example 9 | Without floating fiber | V-1 | 103.2 | 58.9 | 64.7 |
| Example 10 | Without floating fiber | V-0 | 105.1 | 62.2 | 66.1 |
| Comparative example 1 | Without floating fiber | V-0 | 106.7 | 62.7 | 66.3 |
| Comparative example 2 | Without floating fiber | V-0 | 102.1 | 58.2 | 63.5 |
According to the test structure, the test sample strips prepared by the embodiment of the scheme have excellent performance, wherein the addition amount of the TAF and the injection pressure influence the condition of fiber floating to a certain extent according to appearance comparison, the addition amount of the TAF is increased within a certain numerical range as a glass fiber exposure preventing agent, the occurrence of the condition of fiber floating can be improved, the injection pressure is increased within a certain numerical range in the adjustment of the injection pressure, the occurrence of the condition of fiber floating is reduced, the injection speed is speculated to be increased, the glass fiber reinforced plastic can be quickly filled in a mold cavity, the glass fiber can quickly and axially move along the flowing direction, the dispersibility of the plastic piece is favorably increased, the orientation is reduced, the strength of a weld mark is improved, and the surface roughness of the product is reduced, but in the implementation process, the phenomenon that the injection phenomenon occurs at a nozzle opening or a pouring gate due to the over-high injection speed is avoided, the serpentine defect is formed, and the appearance is influenced; in addition, by combining examples 6, 7, 8 and 9 with comparative example 2, it is known that after the product is obtained, the structural strength of the product is reduced without heat preservation stress relief, and it is presumed that the internal stress causes the combination of the internal stress and the external stress to cause the structural collapse when the product is stressed; and compare with example 10 in combination with examples 6, 7, 8, it can be inferred that, in the process of mixing, whether protective gas is introduced to protect the mixed components determines the performance of the prepared master batch to a certain extent, thereby also influencing the structural strength of the injection molding product, and presumably, in the process of mixing, the protective atmosphere is not created, which can cause the mixing of the auxiliary components and oxygen, leading to the efficacy reduction and the utilization rate reduction.
In order to test the aging performance of the engineering plastic product, the scheme is based on an actual use scene and also refers to corresponding contents in the national recommended standard GB/T14522-93, and after the samples of the examples 1-10 and the comparative examples 1-2 are irradiated by an ultraviolet lamp with the power of 40W and the length of 1220mm for 4, 7 and 14 days, the bending strength performance, the tensile strength performance and the notch impact resistance performance of the samples are respectively tested continuously, and the obtained results are as follows:
TABLE 2 test of comprehensive physical Properties after aging treatment
It can be inferred from the above test results that the test sample strips prepared by the embodiment of the present invention have excellent anti-aging and anti-fading properties, and benefit mainly from the application of the aluminum film plating layer, and the anti-aging properties are greatly improved by isolating ultraviolet rays through the plating layer, while the comparative examples 1 and 2 show significantly faster performance fading after the ultraviolet irradiation treatment without applying the plating layer, and it is also necessary to supplement that the plating layer has another function of isolating oxygen and inhibiting oxidation.
The foregoing is directed to embodiments of the present invention, and equivalents, modifications, substitutions and variations such as will occur to those skilled in the art, which fall within the scope and spirit of the appended claims.
Claims (8)
1. A processing method of a modified engineering plastic product is characterized by comprising the following steps: which comprises the following steps:
(1) Mixing 55-70 parts of polycarbonate resin, 25-35 parts of acrylonitrile-butadiene-styrene graft copolymer and 5-8 parts of PET, placing the mixture in an oven for baking treatment to reduce the water content of the mixture, then placing the mixture in a dry environment for natural cooling, and enabling the water content of the mixture to be lower than 0.03% to prepare a pretreated main raw material;
(2) Taking 2-3 parts of polyethylene wax, placing the polyethylene wax in an environment of 90-120 ℃ to soften the polyethylene wax into a liquid state, then soaking 1-2 parts of short ECR glass fiber with the length of 1-3 mm in the polyethylene wax for processing for 1-2 min, simultaneously maintaining the state of the polyethylene wax to be the liquid state, then adding 0.5-1.5 parts of TAF lubricant powder into the polyethylene wax and uniformly stirring, fishing out the short ECR glass fiber, obtaining the soaked short ECR glass fiber and lubricant residual material, respectively naturally cooling the short ECR glass fiber and the lubricant residual material, and then placing the ECR cooled short ECR glass fiber into a mortar for grinding and dispersing to obtain pretreated glass fiber;
(3) Putting the pretreated main raw material, the rest of the lubricant, 1-1.5 parts of compatilizer, 1-2.5 parts of flame retardant, 0.5-1.5 parts of 2, 6-di-tert-butyl-p-cresol, 1-5 parts of flexibilizer and 0.5-1.5 parts of light shielding agent into a mixer, mixing for 25-40 min at the rotating speed of 400-600 r/min, then maintaining the temperature of the mixing environment at 40-60 ℃, adding the pretreated glass fiber, and mixing for 15-25 min at the rotating speed of 300-400 r/min to obtain a mixture;
(4) Adding the mixture into a feeding port of a double-screw extruder within 30min of obtaining the mixture, putting the mixture into the feeding port, performing melt extrusion through the double-screw extruder, and performing water cooling, grain cutting, drying and cooling in sequence to obtain modified master batches;
(5) Mixing the modified master batch and the color master batch according to a preset metering ratio, adding the mixture into an injection molding machine for injection molding, and obtaining a modified engineering plastic product blank after cooling, demolding and trimming a rubber opening;
(6) Applying a protective layer on the surface of the modified engineering plastic product blank to obtain a modified engineering plastic product;
wherein, in the step (6), the method for applying the protective layer on the surface of the modified engineering plastic product blank is to apply an aluminum film with the thickness of 2-3 mu m by a physical vapor deposition method;
the physical vapor deposition method is magnetron sputtering, wherein the sputtering pressure of the magnetron sputtering is 0.4Pa, the sputtering power is 2000W, the target spacing is 10cm, the substrate temperature is 60-80 ℃, and 170sccm argon is also introduced as protective gas.
2. The processing method of the modified engineering plastic product as claimed in claim 1, wherein: in the step (3), the compatilizer is a styrene-maleic anhydride copolymer, the flame retardant is a phenoxy terminated tetrabromobisphenol A carbonate oligomer, the toughening agent is high rubber powder, and the light shielding agent is a thermoplastic polyurethane elastomer.
3. The processing method of the modified engineering plastic product as claimed in claim 1, wherein: and (3) continuously introducing nitrogen as protective gas when the mixer mixes materials so as to discharge the air in the mixer.
4. The processing method of the modified engineering plastic product as claimed in claim 1, wherein: in the step (4), the screw rotating speed of the double-screw extruder is 210-240 r/min, and six heating zones are formed between the feeding port of the double-screw extruder and the extrusion end of the double-screw extruder, wherein the temperature of the first heating zone is 200-210 ℃, the temperature of the second heating zone is 210-230 ℃, the temperature of the third heating zone is 230-245 ℃, the temperature of the fourth heating zone is 240-260 ℃, the temperature of the fifth heating zone is 240-255 ℃, and the temperature of the sixth heating zone is 230-245 ℃.
5. The processing method of the modified engineering plastic product as claimed in claim 1, wherein: in the step (5), the addition amount of the color master batch is 0.1-1% of that of the modified master batch.
6. The processing method of the modified engineering plastic product as claimed in claim 1, wherein: in the step (5), the injection pressure of the injection molding machine for injection molding is 60-80 Mpa, the temperature of the melt is 260-270 ℃, the temperature in the charging barrel is maintained at 200-210 ℃, and the temperature of the mold is 70-90 ℃.
7. The processing method of the modified engineering plastic product as claimed in claim 1, wherein: in the step (5), the surface of the prepared modified engineering plastic product blank is a frosted surface, and the blank is subjected to heat preservation treatment at the temperature of 50-75 ℃ for 6-8 hours to eliminate internal stress.
8. An engineering cable clamp, which is characterized by being prepared by the processing method of the modified engineering plastic product as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191730.6A CN112266599B (en) | 2020-10-30 | 2020-10-30 | Processing method of modified engineering plastic product and application of processing method in cable clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191730.6A CN112266599B (en) | 2020-10-30 | 2020-10-30 | Processing method of modified engineering plastic product and application of processing method in cable clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112266599A CN112266599A (en) | 2021-01-26 |
| CN112266599B true CN112266599B (en) | 2022-12-02 |
Family
ID=74346111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011191730.6A Active CN112266599B (en) | 2020-10-30 | 2020-10-30 | Processing method of modified engineering plastic product and application of processing method in cable clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112266599B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724258A (en) * | 2008-10-31 | 2010-06-09 | 比亚迪股份有限公司 | Nylon composition, method for preparing same and application thereof |
| CN102070894A (en) * | 2011-01-19 | 2011-05-25 | 烟台万华聚氨酯股份有限公司 | High-fluidity high-impact-resistance scraping-resistance polycarbonate composition and preparation method thereof |
| WO2017092069A1 (en) * | 2015-12-04 | 2017-06-08 | 五行材料科技（江苏）有限公司 | Flame retardant polycarbonate-reinforced high-modulus moulding composition |
| WO2018036017A1 (en) * | 2016-08-24 | 2018-03-01 | 五行科技股份有限公司 | Antistatic molding composition comprising conductive fiberglass, and method of preparing same |
| CN111308848A (en) * | 2018-12-12 | 2020-06-19 | 深圳光峰科技股份有限公司 | Projection screen manufacturing method |
| CN111393819A (en) * | 2019-12-19 | 2020-07-10 | 重庆会通科技有限公司 | High-fluidity, heat-resistant and corrosion-resistant polyester alloy composite material and preparation method and application thereof |
-
2020
- 2020-10-30 CN CN202011191730.6A patent/CN112266599B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724258A (en) * | 2008-10-31 | 2010-06-09 | 比亚迪股份有限公司 | Nylon composition, method for preparing same and application thereof |
| CN102070894A (en) * | 2011-01-19 | 2011-05-25 | 烟台万华聚氨酯股份有限公司 | High-fluidity high-impact-resistance scraping-resistance polycarbonate composition and preparation method thereof |
| WO2017092069A1 (en) * | 2015-12-04 | 2017-06-08 | 五行材料科技（江苏）有限公司 | Flame retardant polycarbonate-reinforced high-modulus moulding composition |
| WO2018036017A1 (en) * | 2016-08-24 | 2018-03-01 | 五行科技股份有限公司 | Antistatic molding composition comprising conductive fiberglass, and method of preparing same |
| CN111308848A (en) * | 2018-12-12 | 2020-06-19 | 深圳光峰科技股份有限公司 | Projection screen manufacturing method |
| CN111393819A (en) * | 2019-12-19 | 2020-07-10 | 重庆会通科技有限公司 | High-fluidity, heat-resistant and corrosion-resistant polyester alloy composite material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112266599A (en) | 2021-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113583396B (en) | PBT composition resistant to cyclic injection molding, preparation method and product thereof | |
| CN109627759B (en) | PA66 reinforced material and preparation method and application thereof | |
| CN109081894B (en) | High-fluidity toughening agent and preparation method thereof | |
| CN110358267B (en) | Anti-aging polyester composite material and preparation method thereof | |
| CN105199338A (en) | High-performance low-fiber-exposure flame-retardant reinforced PBT composite and preparation method thereof | |
| CN113462141A (en) | High-toughness low-floating-fiber-reinforced PC/PBT alloy material and preparation method thereof | |
| CN112266606A (en) | High-wear-resistance and high-weather-resistance polyamide composition and preparation method and application thereof | |
| CN112745576A (en) | High-heat-resistance and high-weather-resistance long glass fiber reinforced polypropylene material and preparation method thereof | |
| CN112266599B (en) | Processing method of modified engineering plastic product and application of processing method in cable clamp | |
| CN101768340A (en) | PET resin composition with anti-yellowing function and preparation method thereof | |
| CN114806001A (en) | Method for improving cracking resistance of low-smoke halogen-free sheath material | |
| CN109666280A (en) | One kind is exempted to spray superelevation weather-resisting transparent polycarbonate material and preparation method thereof | |
| CN114605787A (en) | PBT/PET composite material, and preparation method and application thereof | |
| CN113308083A (en) | Low-dielectric-constant polyether-ether-ketone composite material and preparation method thereof | |
| CN114031924B (en) | PC/ABS alloy material and preparation method and application thereof | |
| CN107446348A (en) | A kind of high-performance long fiber reinforced nylon composite material and preparation method thereof | |
| CN106893250B (en) | A kind of ABS resin composition being blow molded with high fondant-strength, good appearance | |
| CN115073849A (en) | Glass fiber reinforced polypropylene material for automobile headlamp shell and preparation method thereof | |
| CN1157461A (en) | Wide-temp. neutron and gamma ray shielding material | |
| CN114561089A (en) | PBT/PET alloy and preparation method and application thereof | |
| CN109575597B (en) | Bismaleimide molding compound capable of being injection molded and preparation method thereof | |
| CN110437533B (en) | Fiber modified board and application thereof | |
| CN110746758A (en) | Preparation method of PC-ABS alloy material | |
| CN112251010A (en) | Modified plastic master batch and application thereof in engineering cable bracket processing | |
| CN107987502A (en) | One kind is used for automobile door handle alloy material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |