CN102875990A - High-performance polycarbonate alloy prepared by waste polycarbonate resin and preparation method and application thereof - Google Patents
High-performance polycarbonate alloy prepared by waste polycarbonate resin and preparation method and application thereof Download PDFInfo
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- CN102875990A CN102875990A CN2012103281559A CN201210328155A CN102875990A CN 102875990 A CN102875990 A CN 102875990A CN 2012103281559 A CN2012103281559 A CN 2012103281559A CN 201210328155 A CN201210328155 A CN 201210328155A CN 102875990 A CN102875990 A CN 102875990A
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- 239000004417 polycarbonate Substances 0.000 title claims abstract description 132
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 132
- 239000002699 waste material Substances 0.000 title claims abstract description 110
- 238000002360 preparation method Methods 0.000 title claims abstract description 53
- 239000000956 alloy Substances 0.000 title claims abstract description 41
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 41
- 239000004431 polycarbonate resin Substances 0.000 title abstract 2
- 229920005668 polycarbonate resin Polymers 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 100
- 239000002994 raw material Substances 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 238000004079 fireproofing Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 11
- 239000008188 pellet Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 239000012760 heat stabilizer Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000007613 environmental effect Effects 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000004224 protection Effects 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 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 description 2
- 230000008901 benefit Effects 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000003340 retarding agent Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a high-performance polycarbonate alloy prepared by waste polycarbonate resin and a preparation method and an application of the high-performance polycarbonate alloy. The polycarbonate alloy comprises the following material components by weight: 96-97 parts of waste polycarbonate crushed materials, 0.05-0.1 part of fire retardant FR2025, 0.2-0.4 part of B-215 long-acting heat stabilizer, 2-4 parts of thermoplastic styrene butadiene rubber (SBS) flexibilizer and 0.1-0.2 part of anti-dropping fire retardant SN3300. The polycarbonate alloy provided by the invention has the characteristics of high performance, high flame retardance, high impact resistance, high coldness resistance, high stability and static electricity resistance and the like, can be used for manufacturing various charger housings, switch panels, and the like.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to plastic waste re-using technology, be specifically related to utilize waste and old polycarbonate material to prepare the technology of high performance polycarbonate alloy.
Background technology
Polycarbonate (PC) is a kind of general common plastics, contain carbonate group, structure according to ester group can be divided into aliphatics, the broad varietys such as aromatic series, it is a kind of water white indefiniteness thermoplastic material, its chemical property is weak acid resistant, anti-weak base, anti-neutral oil, not ultraviolet resistance and not anti-highly basic, and its physical properties is linear expansivity: 38 * 10cm/cm
2, 135 ℃ of thermal change type temperature, have poor stability, exist stress be easy to split, low on the breach anti-impact force, wear no resistance, the shortcomings such as, viscosity low on the metalwork bounding force is large, poor fluidity and impact processing injection moulding.
Because polycarbonate is material relatively more commonly used, so can produce a large amount of waste and old or substandard products material, recovery article, the at present processing for waste material, substandard products or recovery article mainly contains following several method:
(1) burning or land-fill method because meeting produces the obnoxious flavoures such as sulfurous gas in burning process, very easily cause environmental pollution, and take land-fill method, the refractory organics of polycarbonate also can cause very large harm to environment, also causes land wastage, and present this mode progressively is eliminated;
(2) waste material, substandard products or recovery article are simply reclaimed take out grain and do not carry out any science modification, being downgraded to common plastics uses, although solved problem of environmental pollution, fail to take full advantage of the economic worth of these defective materials, and seriously cause the product of inferior quality to occur.
Therefore, how to reclaim and fully use these waste materials, substandard products or recovery article, through scientific approach promote produce after making it to regenerate new economic benefit, and the output quality matetrial to reproduce famous-brand and high-quality goods are problems of benefiting the nation and the people.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, providing a kind of is that major ingredient preparation get by waste electrical equipment class polycarbonate material and waste and old water bottle class polycarbonate material, has high-performance, high flame retardant, high-impact, highly resists cold, the high performance polycarbonate alloy of high stability and the characteristics such as antistatic.
Another object of the present invention provides the preparation method of above-mentioned polycarbonate alloy.
Another object of the present invention provides the application of above-mentioned polycarbonate alloy in preparation charger shell, switch panel.
Above-mentioned purpose of the present invention is achieved by following scheme:
A kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation, its composition of raw materials is comprised of the each component of following parts by weight:
96～97 parts of waste and old polycarbonate crushed materials;
0.05～0.1 part of fireproofing agent FR2025;
0.2～0.4 part of the long-acting thermo-stabilizer of B-215;
2～4 parts of SBS toughner;
0.1～0.2 part of anti-dripping agent SN3300.
In the above-mentioned raw materials prescription, described waste and old polycarbonate crushed material is that particle diameter that waste and old polycarbonate material is obtained after pulverization process is less than or equal to the crushed material of 10mm; Described waste and old polycarbonate material refers to waste electrical equipment or the waste and old water bottle by pure polycarbonate preparation, and accounts for waste electrical equipment or the waste and old water bottle that the material more than 95% is made by polycarbonate content, such as useless charger, useless switch panel or useless mineral water bottle etc.
In the above-mentioned raw materials prescription, the inventor finds by research, waste and old polycarbonate crushed material is as major ingredient, the size of its particle diameter has to a certain degree impact to realization of the present invention, if pellet is excessive, then compounding effect is poor, impact stirs, affect the melting mixing in the production technique, therefore by after the research, the contriver determines that the particle diameter of the waste and old polycarbonate crushed material of control is less than or equal to 10mm.
In the above-mentioned raw materials prescription, described fireproofing agent FR2025 is the commercially available prod, and fireproofing agent FR2025 is environmental protection fire retarding agent, plays in the present invention the effect of fire retardant.
In the above-mentioned raw materials prescription, the long-acting thermo-stabilizer of described B-215 is the commercially available prod, and effect in the present invention is heat resistanceheat resistant, resist oxygen aging, prevents the base material thermooxidative degradation, keeps the Material Flow index, prevents the oxidation of course of processing polymkeric substance and solve the reduced viscosity of waste and old base material, the problem that gloss is degenerated.
In the above-mentioned raw materials prescription, described SBS toughner is the commercially available prod, play in the present invention toughness reinforcing effect, can solve well the problem of old material toughness deficiency, and play winter hardiness, flexing, toughness, thermotolerance and the shock proof effect that improves polymkeric substance.
In the above-mentioned raw materials prescription, described anti-dripping agent SN3300 is the commercially available prod, plays in the present invention to strengthen cohesive force, well tint permanence and stable color and luster continuity are arranged, improve gloss, reduce die wear, strengthen fire-retardant and the drippage when preventing from burning and the effect that solves the problems such as cohesive force deficiency of old material.
The preparation method of above-mentioned a kind of high performance polycarbonate alloy by the preparation of waste and old polycarbonate material, it comprises the steps:
The preparation of the waste and old polycarbonate crushed material of step 1.
Collect waste and old polycarbonate material, use cuts machine the waste and old polycarbonate material that length surpasses 600mm is cut, make and cut rear its length less than 600mm, the waste and old polycarbonate material that the more waste and old polycarbonate material after cutting and length is no more than 600mm is together sent on the pulverizer and is pulverized, obtaining granularity less than or equal to the particle of 10mm, then is required waste and old polycarbonate crushed material;
Step 2. is sent in the twin screw extruder after repeatedly mixing in waste and old polycarbonate crushed material, the long-acting thermo-stabilizer of fireproofing agent FR2025, B-215, SBS toughner and the anti-dripping agent SN3300 threading stirrer of above-mentioned raw materials prescription with step 1 preparation; under 240～290 ℃ temperature, carry out melting mixing; after the gained melt is extruded by twin screw extruder; cool off through tank; introduce dicing machine and carry out the pelletizing operation, collect pellet and be polycarbonate alloy required for the present invention.
In the above-mentioned steps 1, the waste and scrap that purchase comes is selected affirmation, select waste electrical equipment or waste and old water bottle by pure polycarbonate preparation, and account for waste electrical equipment or the waste and old water bottle that the material more than 95% is made by polycarbonate content; Send waste and old polycarbonate material to pulverizer and pulverize, it is 22kw～30kw that pulverizer requires power of motor, and rotating speed is 1400 rev/mins, is 700 rev/mins by transmitting speed change cutter rotating speed.
In the above-mentioned steps 1, described pulverizer is provided with screen cloth, and the particle after pulverizing is screened, and pulverizer is pulverized and screening process can not again putting into by the particle of screen cloth again, and the particle by screen cloth is waste and old polycarbonate crushed material; Mesh diameter on the described screen cloth is 10mm.
In the above-mentioned steps 2, described repeatedly the stirring in stirrer refers to repeatedly stir three times, and each churning time is one hour.
In the above-mentioned steps 2, the rotating speed of described stirrer adopts 650～700 rev/mins; The inventor finds by research: if the stirrer rotating speed is too fast, material can cracking, if the stirrer rotating speed too slowly then can mix again inhomogeneously, is 650～700 rev/mins by the rotating speed of studying rear selection stirrer therefore.
In the above-mentioned steps 2, the rotating speed of twin screw extruder is 250～400 rev/mins.
In the above-mentioned steps 2, it is 240～290 ℃ that melting mixing adopts temperature; The inventor finds after deliberation: if the temperature of melting mixing is too low, then melting is bad, if temperature is too high, and material meeting cracking, therefore by selection after the research, the temperature of melting mixing is 240～290 ℃.
In the above-mentioned steps 2, the melt of being extruded by twin screw extruder is when tank cools off, and used tank temperature is 60～80 ℃; The inventor finds by research, the temperature of tank cooling herein also can have certain influence to product, if the tank temperature is excessively low, then the space is excessive and frangible between pellet, if the tank excess Temperature, then pellet easily bonds, therefore, after the tank temperature was optimized, it was 60～80 ℃ that the inventor selects the tank temperature for cold fuse-element.
Among the above-mentioned preparation method, the rotating speed of dicing machine is 600～900 rev/mins; The inventor finds by research, if the dicing machine rotating speed is excessively slow, then pellet can be too loose, if the dicing machine rotating speed is too fast, then pellet can be too little, and therefore, it is suitable that the rotating speed of dicing machine need to be adjusted, otherwise all can be to final pellet attractive in appearance influential; To this, the inventor is optimized adjustment to the rotating speed of dicing machine, and the rotating speed of finally selecting dicing machine is 600～900 rev/mins.
A kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation of the present invention is carried out performance test, find that this alloy has high-performance, high flame retardant, high-impact, high cold-resistant, high stability and the characteristics such as antistatic, can be used for preparing charger shell, switch panel etc.
Because it has certain color requirement charger, switch panel, thus polycarbonate alloy of the present invention in for the preparation of charger, switch panel, waste and old polycarbonate material will be classified to the requirement of color, selects allotment according to product requirement.And when polycarbonate alloy of the present invention for the preparation of charger black housing the time, then the color of waste and old polycarbonate material is not carried out requirement.
Compared with prior art, the present invention has following beneficial effect:
1. polycarbonate alloy of the present invention, adopted waste and old polycarbonate material to replace the polycarbonate raw material in its raw material, in order to guarantee the excellent property of the finished product, the inventor is for the auxiliary agent that it is suitable that the characteristics of waste and old polycarbonate material have been arranged in pairs or groups, and the consumption of each auxiliary agent is optimized, the selection of each auxiliary agent is so that the waste electrical equipment polycarbonate material also can be prepared the carbonate polymer of excellent property, realized environmental friendly regenerated resource recycling, whole process is accomplished energy-conservation, reduce discharging, the environmental protection resource recovery is for national save energy environmental contamination reduction is contributed;
2. polycarbonate alloy of the present invention, its property indices all meets or exceeds the standard of national electrical apparatus industry, solved waste electrical equipment to environmental influence with to the problem of land seizure, solved and simply taken out the problem that grain causes the market industry product of inferior quality to occur, solved that pure raw materials viscosity is large, the shortcomings such as the poor adhesion to metal, poor fluidity and processing difficulties, also solved the polycarbonate raw material exist be easy to stress cracking, stability is low, relatively more responsive for breach, and the problem such as wear resistance is not good enough;
3. prior art is utilized the carbonate polymer of waste electrical equipment class polycarbonate material preparation, and it stretches approximately 615kgf/cm of tensile strength
2, flexural strength is 895kgf/cm approximately
2, and its notched Izod impact strength of polycarbonate alloy of the present invention (23 ℃) reaches 62kgcm/cm, bending modulus reaches 22515kgf/cm
2, and product to reach the type body stable, be that present charger shell and switch panel meet most the most stable material modified;
4. the preparation method of carbonate polymer of the present invention, according to the characteristics of its formula materials, to its Raw material processing crushing, stirring, the mixture control rotating speed, rotating speed and the temperature of twin screw extruder are optimized, thereby have guaranteed the premium properties of preparation resulting polymers.
Embodiment
Below in conjunction with specific embodiment the present invention is done further description, but specific embodiment is not done any restriction to the present invention.
Embodiment 1
A kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation, its composition of raw materials is comprised of the each component of following parts by weight:
96 parts of waste and old polycarbonate crushed materials;
0.05 part of fireproofing agent FR2025;
0.2 part of the long-acting thermo-stabilizer of B-215;
3 parts of SBS toughner;
0.2 part of anti-dripping agent SN3300.
In the above-mentioned raw materials prescription, described waste and old polycarbonate crushed material is that particle diameter that waste and old polycarbonate material is obtained after pulverization process is less than or equal to the crushed material of 10mm; Described waste and old polycarbonate material refers to waste electrical equipment or the waste and old water bottle by pure polycarbonate preparation, and accounts for waste electrical equipment or the waste and old water bottle that the material more than 95% is made by polycarbonate content, such as useless charger, useless switch panel, useless mineral water bottle etc.
In the above-mentioned raw materials prescription, described fireproofing agent FR2025, the long-acting thermo-stabilizer of B-215, SBS toughner and anti-dripping agent SN3300 are the commercially available prod.
Above-mentioned a kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation, its preparation method comprises the steps:
The preparation of the waste and old polycarbonate crushed material of step 1.
Collect waste and old polycarbonate material, use cuts machine the waste and old polycarbonate material that length surpasses 600mm is cut, make and cut rear its length less than 600mm, the waste and old polycarbonate material that the more waste and old polycarbonate material after cutting and length is no more than 600mm is together sent on the pulverizer and is pulverized, obtaining granularity less than or equal to the particle of 10mm, then is required waste and old polycarbonate crushed material;
Step 2. is according to the waste and old polycarbonate crushed material of above-mentioned raw materials prescription with step 1 preparation; fireproofing agent FR2025; the long-acting thermo-stabilizer of B-215; SBS toughner and anti-dripping agent SN3300 put in the vertical cylinder type stainless steel appearance body stirrer and repeatedly stir three times; each churning time is one hour; the stirrer rotating speed is 700 rev/mins; send in the twin screw extruder after mixing; rotating speed at twin screw extruder is 400 rev/mins; temperature is to carry out melting mixing under 250 ℃ the condition; after the gained melt is extruded by twin screw extruder; through 70 ℃ of tank coolings; the dicing machine of introducing rotating speed again and be 600 rev/mins carries out the pelletizing operation, collects pellet and is the required polycarbonate alloy of the present embodiment.
In the above-mentioned steps 1, the waste and scrap that purchase comes is selected affirmation, select waste electrical equipment or waste and old water bottle by pure polycarbonate preparation, and account for waste electrical equipment or the waste and old water bottle that the material more than 95% is made by polycarbonate content; Send waste and old polycarbonate material to pulverizer and pulverize, it is 22kw～30kw that pulverizer requires power of motor, and rotating speed is 1400 rev/mins, is 700 rev/mins by transmitting speed change cutter rotating speed.
Adopt the ASTM international standard that the polycarbonate alloy that the present embodiment prepares is carried out performance test, the result is as shown in table 1.
The performance test results of the polycarbonate alloy of table 1 embodiment 1
| Character | Method | Unit | Data |
| Proportion | ASTM D792 | — | 1.22 |
| Mould shrinks | ASTM D955 | % | 0.5 |
| Tensile strength | ASTM D638 | Kg/c㎡ | 615 |
| Flexural strength | ASTM D638 | Kg/c㎡ | 895 |
| Unit elongation | ?ASTM D90 | % | 100 |
| Bending modulus | ASTM D90 | Kg/c㎡ | 22515 |
| Notched Izod impact strength (1/8 ") (23 ℃) | ASTM D256 | Kg·㎝/㎝ | 62 |
| Heat-drawn wire | ASTM D648 | ℃ | 125 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Drying temperature | — | ℃ | 120 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 230～270 |
| Suggestion mould temperature | — | ℃ | 80 |
As can be seen from Table 1, the polycarbonate alloy of the present embodiment preparation has reached national electrical apparatus industry after testing to the standard of materials requirement of charger shell, switch panel, has realized the purpose of energy-conservation, reduction of discharging, environmental protection, renewable resource utilization.
Embodiment 2
A kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation, its composition of raw materials is comprised of the each component of following parts by weight:
97 parts of waste and old polycarbonate crushed materials;
0.1 part of fireproofing agent FR2025;
0.3 part of the long-acting thermo-stabilizer of B-215;
2 parts of SBS toughner;
0.1 part of anti-dripping agent SN3300.
In the above-mentioned raw materials prescription, described waste and old polycarbonate crushed material is that particle diameter that waste and old polycarbonate material is obtained after pulverization process is less than or equal to the crushed material of 10mm; Described waste and old polycarbonate material refers to waste electrical equipment or the waste and old water bottle by pure polycarbonate preparation, and accounts for waste electrical equipment or the waste and old water bottle that the material more than 95% is made by polycarbonate content, such as useless charger, useless switch panel, useless mineral water bottle etc.
In the above-mentioned raw materials prescription, described fireproofing agent FR2025, the long-acting thermo-stabilizer of B-215, SBS toughner and anti-dripping agent SN3300 are the commercially available prod.
Above-mentioned a kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation, its preparation method comprises the steps:
The preparation of the waste and old polycarbonate crushed material of step 1.
Collect waste and old polycarbonate material, use cuts machine the waste and old polycarbonate material that length surpasses 600mm is cut, make and cut rear its length less than 600mm, the waste and old polycarbonate material that the more waste and old polycarbonate material after cutting and length is no more than 600mm is together sent on the pulverizer and is pulverized, obtaining granularity less than or equal to the particle of 10mm, then is required waste and old polycarbonate crushed material;
Step 2. is according to the waste and old polycarbonate crushed material of above-mentioned raw materials prescription with step 1 preparation; fireproofing agent FR2025; the long-acting thermo-stabilizer of B-215; SBS toughner and anti-dripping agent SN3300 put in the vertical cylinder type stainless steel appearance body stirrer and repeatedly stir three times; each churning time is one hour; the stirrer rotating speed is 650 rev/mins; send in the twin screw extruder after mixing; rotating speed at twin screw extruder is 400 rev/mins; temperature is to carry out melting mixing under 260 ℃ the condition; after the gained melt is extruded by twin screw extruder; through 80 ℃ of tank coolings; the dicing machine of introducing rotating speed again and be 900 rev/mins carries out the pelletizing operation, collects pellet and is the required polycarbonate alloy of the present embodiment.
In the above-mentioned steps 1, the waste and scrap that purchase comes is selected affirmation, select waste electrical equipment or waste and old water bottle by pure polycarbonate preparation, and account for waste electrical equipment or the waste and old water bottle that the material more than 95% is made by polycarbonate content; Send waste and old polycarbonate material to pulverizer and pulverize, it is 22kw～30kw that pulverizer requires power of motor, and rotating speed is 1400 rev/mins, is 700 rev/mins by transmitting speed change cutter rotating speed.
Adopt the ASTM international standard that the polycarbonate alloy that the present embodiment prepares is carried out performance test, the result is as shown in table 2.
The performance test results of the polycarbonate alloy of table 2 embodiment 2
| Character | Method | Unit | Data |
| Proportion | ASTM D792 | — | 1.2 |
| Mould shrinks | ASTM D955 | % | 0.6 |
| Tensile strength | ASTM D638 | Kg/c㎡ | 620 |
| Flexural strength | ASTM D638 | Kg/c㎡ | 900 |
| Unit elongation | ?ASTM D90 | % | 100 |
| Bending modulus | ASTM D90 | Kg/c㎡ | 23000 |
| Notched Izod impact strength (1/8 ") (23 ℃) | ASTM D256 | Kg·㎝/㎝ | 60 |
| Heat-drawn wire | ASTM D648 | ℃ | 128 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Drying temperature | — | ℃ | 120 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240～280 |
| Suggestion mould temperature | — | ℃ | 80 |
As can be seen from Table 2, the polycarbonate alloy of the present embodiment has reached national electrical apparatus industry after testing to the standard of materials requirement of charger shell, switch panel, has realized the purpose of energy-conservation, reduction of discharging, environmental protection, renewable resource utilization.
Claims (8)
1. high performance polycarbonate alloy by the preparation of waste and old polycarbonate material, its composition of raw materials is comprised of the each component of following parts by weight:
96～97 parts of waste and old polycarbonate crushed materials;
0.05～0.1 part of fireproofing agent FR2025;
0.2～0.4 part of the long-acting thermo-stabilizer of B-215;
2～4 parts of SBS toughner;
0.1～0.2 part of anti-dripping agent SN3300;
In the above-mentioned raw materials prescription, described waste and old polycarbonate crushed material is that particle diameter that waste and old polycarbonate material is obtained after pulverization process is less than or equal to the crushed material of 10mm.
2. the preparation method of the described a kind of high performance polycarbonate alloy by waste and old polycarbonate material preparation of a claim 1, it comprises the steps:
The preparation of the waste and old polycarbonate crushed material of step 1.
Collect waste and old polycarbonate material, use cuts machine the waste and old polycarbonate material that length surpasses 600mm is cut, make and cut rear its length less than 600mm, the waste and old polycarbonate material that the more waste and old polycarbonate material after cutting and length is no more than 600mm is together sent on the pulverizer and is pulverized, obtaining granularity less than or equal to the particle of 10mm, then is required waste and old polycarbonate crushed material;
Step 2. is sent in the twin screw extruder after repeatedly mixing in waste and old polycarbonate crushed material, the long-acting thermo-stabilizer of fireproofing agent FR2025, B-215, SBS toughner and the anti-dripping agent SN3300 threading stirrer of above-mentioned raw materials prescription with step 1 preparation; under 240～290 ℃ temperature, carry out melting mixing; after the gained melt is extruded by twin screw extruder; cool off through tank; introduce dicing machine and carry out the pelletizing operation, collect pellet and be polycarbonate alloy.
3. the preparation method of described a kind of high performance polycarbonate alloy by the preparation of waste and old polycarbonate material according to claim 2 is characterized in that in the described step 2, repeatedly stirs to refer to repeatedly stir three times in stirrer, and each churning time is one hour.
4. the preparation method of described a kind of high performance polycarbonate alloy by the preparation of waste and old polycarbonate material according to claim 2 is characterized in that in the described step 2, and the rotating speed of stirrer adopts 650～700 rev/mins.
5. the preparation method of described a kind of high performance polycarbonate alloy by the preparation of waste and old polycarbonate material according to claim 2 is characterized in that in the described step 2, and the rotating speed of twin screw extruder is 250～400 rev/mins.
6. the preparation method of described a kind of high performance polycarbonate alloy by the preparation of waste and old polycarbonate material according to claim 2, it is characterized in that in the described step 2, the melt of being extruded by twin screw extruder is when tank cools off, and used tank temperature is 60～80 ℃.
7. the preparation method of described a kind of high performance polycarbonate alloy by the preparation of waste and old polycarbonate material according to claim 2 is characterized in that in the described step 2, and the rotating speed of dicing machine is 600～900 rev/mins.
8. the described a kind of application of high performance polycarbonate alloy in preparation charger shell or switch panel by waste and old polycarbonate material preparation of claim 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421295A (en) * | 2013-08-23 | 2013-12-04 | 韩清洁 | High flame-retardant recycled plastic for production of bullet train seats and preparation method thereof |
| CN103421290A (en) * | 2013-05-16 | 2013-12-04 | 惠州市昌亿科技股份有限公司 | Low-temperature resisting, high-impact and flame-retardant glass-fiber reinforced polycarbonate composite material as well as preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312312A (en) * | 2000-03-08 | 2001-09-12 | 财团法人工业技术研究院 | Recovered waste CD composite and its application |
| CN101062996A (en) * | 2006-04-30 | 2007-10-31 | 佛山市顺德区高怡新塑料有限公司 | Halogen-free flame-proof weather-resisting transparent polycarbonate composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312312A (en) * | 2000-03-08 | 2001-09-12 | 财团法人工业技术研究院 | Recovered waste CD composite and its application |
| CN101062996A (en) * | 2006-04-30 | 2007-10-31 | 佛山市顺德区高怡新塑料有限公司 | Halogen-free flame-proof weather-resisting transparent polycarbonate composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421290A (en) * | 2013-05-16 | 2013-12-04 | 惠州市昌亿科技股份有限公司 | Low-temperature resisting, high-impact and flame-retardant glass-fiber reinforced polycarbonate composite material as well as preparation method and application thereof |
| CN103421290B (en) * | 2013-05-16 | 2015-09-02 | 惠州市昌亿科技股份有限公司 | A kind of low temperature resistant high-impact flame-proof glass fibre reinforced polycarbonate matrix material and its preparation method and application |
| CN103421295A (en) * | 2013-08-23 | 2013-12-04 | 韩清洁 | High flame-retardant recycled plastic for production of bullet train seats and preparation method thereof |
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