CN112852140A - Environment-friendly flame-retardant modified PC plastic and preparation method thereof - Google Patents
Environment-friendly flame-retardant modified PC plastic and preparation method thereof Download PDFInfo
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- CN112852140A CN112852140A CN202110271923.0A CN202110271923A CN112852140A CN 112852140 A CN112852140 A CN 112852140A CN 202110271923 A CN202110271923 A CN 202110271923A CN 112852140 A CN112852140 A CN 112852140A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 58
- 239000004033 plastic Substances 0.000 title claims abstract description 58
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000003063 flame retardant Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000004417 polycarbonate Substances 0.000 claims abstract description 67
- 239000011347 resin Substances 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000004088 foaming agent Substances 0.000 claims abstract description 37
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 25
- 239000002216 antistatic agent Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 22
- 239000003381 stabilizer Substances 0.000 claims abstract description 22
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 229920005610 lignin Polymers 0.000 claims abstract description 19
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims description 30
- 238000001125 extrusion Methods 0.000 claims description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 229920000426 Microplastic Polymers 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229920006942 ABS/PC Polymers 0.000 claims description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 3
- 125000000018 nitroso group Chemical group N(=O)* 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
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- 230000007613 environmental effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- 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
-
- 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
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- 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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2397/00—Characterised by the use of lignin-containing materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
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Abstract
The invention discloses an environment-friendly flame-retardant modified PC plastic and a preparation method thereof, belonging to the technical field of plastics and comprising the following raw materials in parts by weight: 9-15 parts of PC polycarbonate, 10-15 parts of acid lignin, 10-16 parts of resin, 8-13 parts of antioxidant, 10-14 parts of wear-resisting agent, 6-12 parts of lubricant, 20-24 parts of low-halogen flame retardant, 5-10 parts of antistatic agent, 10-14 parts of foaming agent, 6-13 parts of stabilizer and 5-12 parts of silicate fiber alumina, and the prepared modified plastic has good oxidation resistance, wear resistance, lubricating property, antistatic property and antistatic property, is stable in performance and has good comprehensive flame-retardant performance through adding the antioxidant, the wear-resisting agent, the lubricant, the antistatic agent and the stabilizer. The low-halogen flame retardant is adopted, so that the environment is protected and no pollution is caused. On the basis of using the foaming agent, the resin is added, so that the resin is beneficial to improving the performances of plastic such as tensile strength improvement, bending strength, surface hardness and the like, and the resin and the foaming agent generate a synergistic effect.
Description
Technical Field
The invention relates to the technical field of plastics, and particularly relates to an environment-friendly flame-retardant modified PC plastic and a preparation method thereof.
Background
The modified plastic is a plastic product which is processed by methods of filling, blending, enhancing and the like on the basis of general plastic and plastics and improves the performance in the aspects of flame retardance, strength, impact resistance, toughness and the like, the modified plastic part not only can achieve the strength performance of some steel, but also has a series of advantages of light weight, rich colors, easiness in forming and the like, the modified plastic is a plastic industry field which relates to wide range, high technological content and capability of creating huge economic benefits, and the plastic modification technology filling, blending and enhancing modification are deeper into the raw materials and the forming processing process of almost all plastic products, from the production of raw material resin to modified plastic master batches of various specifications and varieties, in order to reduce the cost of the plastic products and improve the functionality of the plastic products, the plastic modification technology can not be opened.
The existing modified plastics have certain enhancement modification, but the functions of the modified plastic products produced by the existing technology in the aspects of comprehensive performances such as flame retardance, wear resistance and the like are not perfect, so that the service life of the plastic products is short, and potential safety hazards are easy to occur.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide the environment-friendly flame-retardant modified PC plastic and the preparation method thereof, and the environment-friendly flame-retardant modified PC plastic has the advantages of good comprehensive performance, good wear resistance, oxidation resistance, arc wetting property, antistatic property, environmental protection and no pollution.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 9-15 parts of PC polycarbonate, 10-15 parts of acid lignin, 10-16 parts of resin, 8-13 parts of antioxidant, 10-14 parts of wear-resisting agent, 6-12 parts of lubricant, 20-24 parts of low-halogen flame retardant, 5-10 parts of antistatic agent, 10-14 parts of foaming agent, 6-13 parts of stabilizer and 5-12 parts of silicate fiber alumina, and has the advantages of good comprehensive performance, good wear resistance, oxidation resistance, arc wetting property, antistatic property, environmental protection and no pollution.
As a preferable scheme of the invention, the environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 10-14 parts of PC polycarbonate, 11-14 parts of acid lignin, 11-15 parts of resin, 9-12 parts of antioxidant, 11-13 parts of wear-resistant agent, 7-11 parts of lubricant, 21-23 parts of low-halogen flame retardant, 6-9 parts of antistatic agent, 11-13 parts of foaming agent, 7-12 parts of stabilizer and 6-11 parts of silicate fiber alumina.
As a preferable scheme of the invention, the environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 11-13 parts of PC polycarbonate, 12-13 parts of acid lignin, 12-14 parts of resin, 10-11 parts of antioxidant, 11.5-12.5 parts of wear-resisting agent, 8-10 parts of lubricant, 21.5-22.5 parts of low-halogen flame retardant, 7-8 parts of antistatic agent, 11.5-12.5 parts of foaming agent, 8-11 parts of stabilizer and 7-10 parts of silicate fiber aluminum oxide.
As a preferable scheme of the invention, the environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 12 parts of PC polycarbonate, 12.5 parts of acid lignin, 13 parts of resin, 10.5 parts of antioxidant, 12 parts of wear-resisting agent, 9 parts of lubricant, 22 parts of low-halogen flame retardant, 7.5 parts of antistatic agent, 12 parts of foaming agent, 10 parts of stabilizer and 9 parts of silicate fiber alumina.
As a preferable scheme of the invention, the resin is one of ABS resin, AS resin and ABS/PC alloy resin or a mixture of several of the ABS resin, the AS resin and the ABS/PC alloy resin according to any proportion.
As a preferable scheme of the invention, the foaming agent is one or a mixture of several of a nitroso foaming agent, an inorganic salt foaming agent and an azo foaming agent in any proportion.
As a preferable scheme of the invention, the antioxidant is one or a mixture of several of antioxidant 1010, antioxidant 168 and antioxidant 1076 in any proportion.
A preparation method of an environment-friendly flame-retardant modified PC plastic comprises the following steps:
s1, putting the PC polycarbonate, the acid lignin, the resin and the silicate fiber alumina into a crusher, fully stirring and crushing to prepare a first mixture for later use;
s2, sequentially adding a foaming agent, an antioxidant, an anti-wear agent, a low-halogen flame retardant, an antistatic agent, a lubricant and a stabilizer into the mixture, fully stirring and crushing to obtain a second mixture for later use;
s3, placing the second mixture into a reaction kettle with the temperature of 100-120 ℃, and carrying out mixed reaction for 35-40min to obtain a third mixture;
s4, placing the third mixture into a feeding port of an extrusion device, controlling the temperature of extrusion granulation by injection molding the third mixture into plastic particles through the extrusion device, adjusting the temperature to be between 160 and 175 ℃, controlling the temperature of injection molding to be between 165 and 170 ℃, and controlling the screw rotation speed to be 350 and 400 r/min.
An extrusion device, which is capable of implementing or applying a preparation method of environment-friendly flame-retardant modified PC plastic, comprises a base body 1, wherein a driving motor 2 is fixedly connected to the inner bottom wall of the base body 1, a speed reducer 3 is fixedly connected to one side of the driving motor 2, a driving belt pulley 4 is fixedly connected to the outer surface of an output shaft of the speed reducer 3, a belt 5 is arranged on the outer surface of the driving belt pulley 4, a machine barrel 6 is fixedly connected to the upper surface of the base body 1, a machine head 7 is fixedly connected to one end of the machine barrel 6, a feeding barrel 8 is fixedly connected to the other end of the machine barrel 6, a blanking square pipe 9 is fixedly connected to the upper surface of the feeding barrel 8, a feeding pipe 10 is fixedly connected to the top end of one side of the blanking square pipe 9, and a hopper 11 is fixedly connected to, the bottom fixedly connected with servo motor 12 of hopper 11 one side, servo motor 12's output shaft fixedly connected with dabber 13, dabber 13's external surface fixedly connected with spiral fan blade 14, one side fixedly connected with light curtain sensor 15 of blanking side pipe 9, the inside of feed cylinder 8 is provided with pivot 16, the external surface fixedly connected with driven pulley 17 of 16 one ends of pivot.
As a preferable scheme of the present invention, a door 18 is fixedly connected to the front surface of the base body 1 through a hinge, and a handle 19 is fixedly connected to the outer surface of the door 18; a support frame 20 is fixedly connected to one side of the upper surface of the base body 1, and the bottom ends of the hopper 11 and the servo motor 12 are fixedly connected with the upper surface of the support frame 20; the driven belt pulley 17 is connected with the driving belt pulley 4 through a belt 5; the outer surfaces of the output shaft of the speed reducer 3 and one end of the rotating shaft 16 are fixedly connected with a bearing 21, and the outer surface of the bearing 21 is fixedly connected with the side wall of the base body 1.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) by adding the antioxidant, the wear-resisting agent, the lubricant, the antistatic agent and the stabilizer, the prepared modified plastic has good oxidation resistance, wear resistance, lubricity and antistatic property, and is stable in performance and good in comprehensive performance.
(2) The scheme adopts low-halogen flame retardant, and is environment-friendly and pollution-free.
(3) According to the scheme, the resin is added on the basis of the foaming agent, so that the resin is favorable for improving the performances of plastic such as tensile strength improvement, bending strength and surface hardness, and the resin and the foaming agent generate a synergistic effect.
(4) This scheme is using extrusion equipment, square pipe through the blanking, the conveying pipe, the hopper, servo motor, the dabber, spiral fan blade and light curtain sensor cooperation set up, when extrusion equipment production is used, servo motor starts to drive the dabber and rotates, the dabber drives spiral fan blade and rotates, convey the plastic granules in the hopper to in the blanking side, the slew velocity of spiral fan blade is controlled to the rotational speed through control servo motor, thereby control plastic granules's falling speed, control is convenient accurate, light curtain sensor is detecting the long time no plastic granules back that falls, with information transfer to backstage computer, remind the staff to inspect, convey plastic granules through spiral fan blade, conveniently control transfer speed, effectively improve production quality.
(5) This scheme is using extrusion equipment, through driving motor, the reduction gear, drive pulley, the belt, pivot and driven pulley cooperation set up, when plastics extrusion equipment production uses, driving motor starts the output shaft that drives the reduction gear and rotates, thereby it rotates to drive pulley, drive pulley passes through the belt and drives driven pulley and rotate, driven pulley drives the pivot and rotates, adopt the belt to carry out the transmission, the transmission is steady, noiselessness, the belt can skid on drive pulley and driven pulley when transshipping, prevent that the spare part in the barrel from damaging, play good safety protection effect.
Drawings
FIG. 1 is a schematic view of an axial structure of the present invention;
FIG. 2 is a schematic view of a partial axial structure of the present invention;
FIG. 3 is a partial cross-sectional structural schematic of the present invention;
FIG. 4 is a schematic front view of the present invention;
fig. 5 is a schematic top view of the present invention.
In the figure: 1. a substrate; 2. a drive motor; 3. a speed reducer; 4. a drive pulley; 5. a belt; 6. a barrel; 7. a machine head; 8. a feeding cylinder; 9. blanking square tubes; 10. a feed pipe; 11. a hopper; 12. a servo motor; 13. a mandrel; 14. a helical fan blade; 15. a light curtain sensor; 16. a rotating shaft; 17. a driven pulley; 18. a box door; 19. a handle; 20. a support frame; 21. bearing assembly
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 9 parts of PC polycarbonate, 10 parts of acid lignin, 10 parts of resin, 8 parts of antioxidant, 10 parts of wear-resisting agent, 6 parts of lubricant, 20 parts of low-halogen flame retardant, 5 parts of antistatic agent, 10 parts of foaming agent, 6 parts of stabilizer and 5 parts of silicate fiber alumina.
Example 2:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 10 parts of PC polycarbonate, 11 parts of acid lignin, 11 parts of resin, 9 parts of antioxidant, 11 parts of wear-resisting agent, 7 parts of lubricant, 21 parts of low-halogen flame retardant, 6 parts of antistatic agent, 11 parts of foaming agent, 7 parts of stabilizer and 6 parts of silicate fiber alumina.
Example 3:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 11 parts of PC polycarbonate, 12 parts of acid lignin, 12 parts of resin, 10 parts of antioxidant, 11.5 parts of wear-resisting agent, 8 parts of lubricant, 21.5 parts of low-halogen flame retardant, 7 parts of antistatic agent, 11.5 parts of foaming agent, 8 parts of stabilizer and 7 parts of silicate fiber alumina.
Example 4:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 12 parts of PC polycarbonate, 12.5 parts of acid lignin, 13 parts of resin, 10.5 parts of antioxidant, 12 parts of wear-resisting agent, 9 parts of lubricant, 22 parts of low-halogen flame retardant, 7.5 parts of antistatic agent, 12 parts of foaming agent, 10 parts of stabilizer and 9 parts of silicate fiber alumina.
Example 5:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 13 parts of PC polycarbonate, 13 parts of acid lignin, 14 parts of resin, 11 parts of antioxidant, 12.5 parts of wear-resisting agent, 10 parts of lubricant, 22.5 parts of low-halogen flame retardant, 8 parts of antistatic agent, 12.5 parts of foaming agent, 11 parts of stabilizer and 10 parts of silicate fiber alumina.
Example 6:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 14 parts of PC polycarbonate, 14 parts of acid lignin, 15 parts of resin, 12 parts of antioxidant, 13 parts of wear-resisting agent, 11 parts of lubricant, 23 parts of low-halogen flame retardant, 9 parts of antistatic agent, 13 parts of foaming agent, 12 parts of stabilizer and 11 parts of silicate fiber alumina.
Example 7:
an environment-friendly flame-retardant modified PC plastic comprises the following raw materials in parts by weight: 15 parts of PC polycarbonate, 15 parts of acid lignin, 16 parts of resin, 13 parts of antioxidant, 14 parts of wear-resisting agent, 12 parts of lubricant, 24 parts of low-halogen flame retardant, 10 parts of antistatic agent, 14 parts of foaming agent, 3 parts of stabilizer and 12 parts of silicate fiber alumina.
Preferably, in embodiments 1 to 9, the resin is one or a mixture of several of ABS resin, AS resin, and ABS/PC alloy resin in any proportion, the foaming agent is one or a mixture of several of nitroso foaming agent, inorganic salt foaming agent, and azo foaming agent in any proportion, and the antioxidant is one or a mixture of several of antioxidant 1010, antioxidant 168, and antioxidant 1076 in any proportion.
A preparation method of an environment-friendly flame-retardant modified PC plastic comprises the following steps:
s1, putting the PC polycarbonate, the acid lignin, the resin and the silicate fiber alumina into a crusher, fully stirring and crushing to prepare a first mixture for later use;
s2, sequentially adding a foaming agent, an antioxidant, an anti-wear agent, a low-halogen flame retardant, an antistatic agent, a lubricant and a stabilizer into the mixture, fully stirring and crushing to obtain a second mixture for later use;
s3, placing the second mixture into a reaction kettle with the temperature of 100-120 ℃, and carrying out mixed reaction for 35-40min to obtain a third mixture;
s4, placing the third mixture into a feeding port of an extrusion device, injection molding the third mixture into plastic pellets by the extrusion device, controlling the temperature of extrusion granulation, adjusting the temperature to be between 160 and 175 ℃, controlling the temperature of injection molding to be between 165 and 170 ℃, and controlling the screw rotation speed to be 350 and 400 r/min.
The extrusion equipment is capable of implementing or applying the preparation method of the environment-friendly flame-retardant modified PC plastic, and comprises a substrate 1, and is characterized in that: a driving motor 2 is fixedly connected to the inner bottom wall of a base body 1, a speed reducer 3 is fixedly connected to one side of the driving motor 2, a driving belt pulley 4 is fixedly connected to the outer surface of an output shaft of the speed reducer 3, a belt 5 is arranged on the outer surface of the driving belt pulley 4, a machine barrel 6 is fixedly connected to the upper surface of the base body 1, a machine head 7 is fixedly connected to one end of the machine barrel 6, a feeding barrel 8 is fixedly connected to the other end of the machine barrel 6, a blanking square pipe 9 is fixedly connected to the upper surface of the feeding barrel 8, a feeding pipe 10 is fixedly connected to the top end of one side of the blanking square pipe 9, a hopper 11 is fixedly connected to one end of the feeding pipe 10 away from the blanking square pipe 9, a servo motor 12 is fixedly connected to the bottom end of one side of the hopper 11, a rotating shaft 16 is arranged in the feeding cylinder 8, and a driven belt pulley 17 is fixedly connected to the outer surface of one end of the rotating shaft 16.
The front surface of the base body 1 is fixedly connected with a box door 18 through a hinge, and the outer surface of the box door 18 is fixedly connected with a handle 19; a support frame 20 is fixedly connected to one side of the upper surface of the base body 1, and the bottom ends of the hopper 11 and the servo motor 12 are fixedly connected with the upper surface of the support frame 20; the driven belt pulley 17 and the driving belt pulley 4 are connected through a belt 5; the outer surfaces of the output shaft of the speed reducer 3 and one end of the rotating shaft 16 are fixedly connected with a bearing 21, and the outer surface of the bearing 21 is fixedly connected with the side wall of the base body 1.
According to the invention, through the addition of the antioxidant, the wear-resisting agent, the lubricant, the antistatic agent and the stabilizer, the prepared modified plastic has good oxidation resistance, wear resistance, lubricity and antistatic property, and meanwhile, the performance is stable, the modified plastic has good comprehensive performance, through the low-halogen flame retardant, the modified plastic is environment-friendly and pollution-free, and on the basis of the use of the foaming agent, the resin is added, so that the resin is beneficial to improving the performances of the plastic such as tensile strength improvement, bending strength, surface hardness and the like, and the resin and the foaming agent generate a synergistic effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to cover the technical scope of the present invention, the technical solutions and the modifications thereof according to the present invention within the technical scope of the present invention.
Are included within the scope of the present invention.
Claims (10)
1. The environment-friendly flame-retardant modified PC plastic is characterized by comprising the following raw materials in parts by weight: 9-15 parts of PC polycarbonate, 10-15 parts of acid lignin, 10-16 parts of resin, 8-13 parts of antioxidant, 10-14 parts of wear-resisting agent, 6-12 parts of lubricant, 20-24 parts of low-halogen flame retardant, 5-10 parts of antistatic agent, 10-14 parts of foaming agent, 6-13 parts of stabilizer and 5-12 parts of silicate fiber alumina.
2. The environment-friendly flame-retardant modified PC plastic as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 10-14 parts of PC polycarbonate, 11-14 parts of acid lignin, 11-15 parts of resin, 9-12 parts of antioxidant, 11-13 parts of wear-resistant agent, 7-11 parts of lubricant, 21-23 parts of low-halogen flame retardant, 6-9 parts of antistatic agent, 11-13 parts of foaming agent, 7-12 parts of stabilizer and 6-11 parts of silicate fiber alumina.
3. The environment-friendly flame-retardant modified PC plastic as claimed in claim 2, which is characterized by comprising the following raw materials in parts by weight: 11-13 parts of PC polycarbonate, 12-13 parts of acid lignin, 12-14 parts of resin, 10-11 parts of antioxidant, 11.5-12.5 parts of wear-resisting agent, 8-10 parts of lubricant, 21.5-22.5 parts of low-halogen flame retardant, 7-8 parts of antistatic agent, 11.5-12.5 parts of foaming agent, 8-11 parts of stabilizer and 7-10 parts of silicate fiber aluminum oxide.
4. The environment-friendly flame-retardant modified PC plastic as claimed in claim 3, which is characterized by comprising the following raw materials in parts by weight: 12 parts of PC polycarbonate, 12.5 parts of acid lignin, 13 parts of resin, 10.5 parts of antioxidant, 12 parts of wear-resisting agent, 9 parts of lubricant, 22 parts of low-halogen flame retardant, 7.5 parts of antistatic agent, 12 parts of foaming agent, 10 parts of stabilizer and 9 parts of silicate fiber alumina.
5. The environment-friendly flame-retardant modified PC plastic according to any one of claims 1 to 4, wherein the resin is one of ABS resin, AS resin and ABS/PC alloy resin or a mixture of several of the ABS resin, the AS resin and the ABS/PC alloy resin in any proportion.
6. The environment-friendly flame-retardant modified PC plastic according to any one of claims 1 to 4, wherein the foaming agent is one or a mixture of several of a nitroso foaming agent, an inorganic salt foaming agent and an azo foaming agent in any proportion.
7. The environment-friendly flame-retardant modified PC plastic according to any one of claims 1 to 4, wherein the antioxidant is one or a mixture of several of an antioxidant 1010, an antioxidant 168 and an antioxidant 1076 in any proportion.
8. A preparation method for implementing the environment-friendly flame-retardant modified PC plastic disclosed by any one of claims 1 to 4 is characterized by comprising the following steps of:
s1, putting the PC polycarbonate, the acid lignin, the resin and the silicate fiber alumina into a crusher, fully stirring and crushing to prepare a first mixture for later use;
s2, sequentially adding a foaming agent, an antioxidant, an anti-wear agent, a low-halogen flame retardant, an antistatic agent, a lubricant and a stabilizer into the mixture, fully stirring and crushing to obtain a second mixture for later use;
s3, placing the second mixture into a reaction kettle with the temperature of 100-120 ℃, and carrying out mixed reaction for 35-40min to obtain a third mixture;
s4, placing the third mixture into a feeding port of an extrusion device, injection molding the third mixture into plastic pellets by the extrusion device, controlling the temperature of extrusion granulation, adjusting the temperature to be between 160 and 175 ℃, controlling the temperature of injection molding to be between 165 and 170 ℃, and controlling the screw rotation speed to be 350 and 400 r/min.
9. An extrusion device for implementing the preparation method of the environment-friendly flame-retardant modified PC plastic, which comprises a substrate (1), and is characterized in that: the inner bottom wall of the base body (1) is fixedly connected with a driving motor (2), one side of the driving motor (2) is fixedly connected with a speed reducer (3), the outer surface of an output shaft of the speed reducer (3) is fixedly connected with a driving belt pulley (4), the outer surface of the driving belt pulley (4) is provided with a belt (5), the upper surface of the base body (1) is fixedly connected with a machine barrel (6), one end of the machine barrel (6) is fixedly connected with a machine head (7), the other end of the machine barrel (6) is fixedly connected with a feeding barrel (8), the upper surface of the feeding barrel (8) is fixedly connected with a blanking square pipe (9), the top end of one side of the blanking square pipe (9) is fixedly connected with a feeding pipe (10), one end of the feeding pipe (10), far away from the blanking square pipe (9), is fixedly connected with a hopper (11), output shaft fixedly connected with dabber (13) of servo motor (12), the external fixed surface of dabber (13) is connected with helical fan blade (14), one side fixedly connected with light curtain sensor (15) of blanking side pipe (9), the inside of feed cylinder (8) is provided with pivot (16), the external fixed surface of pivot (16) one end is connected with driven pulley (17).
10. Extrusion apparatus according to claim 9, wherein a door (18) is fixedly connected to the front side of the base body (1) by means of hinges, and a handle (19) is fixedly connected to the outer surface of the door (18); a support frame (20) is fixedly connected to one side of the upper surface of the base body (1), and the bottom ends of the hopper (11) and the servo motor (12) are fixedly connected with the upper surface of the support frame (20); the driven belt pulley (17) is connected with the driving belt pulley (4) through a belt (5); the outer surfaces of the output shaft of the speed reducer (3) and one end of the rotating shaft (16) are fixedly connected with bearings (21), and the outer surfaces of the bearings (21) are fixedly connected with the side wall of the base body (1).
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Cited By (1)
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| CN113563709A (en) * | 2021-07-31 | 2021-10-29 | 江苏松上科技有限公司 | Formula, preparation method and production device of wear-resistant flame-retardant PC material |
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