CN105802176A - PC (polycarbonate) composition, preparation method thereof and novel material - Google Patents
PC (polycarbonate) composition, preparation method thereof and novel material Download PDFInfo
- Publication number
- CN105802176A CN105802176A CN201610226646.0A CN201610226646A CN105802176A CN 105802176 A CN105802176 A CN 105802176A CN 201610226646 A CN201610226646 A CN 201610226646A CN 105802176 A CN105802176 A CN 105802176A
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- phosphate
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- antioxidant
- spinel compound
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- 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
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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
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- 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)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses PC (polycarbonate) composition, a preparation method thereof and a novel material. The PC composition comprises a PC material, a spinel compound and a melt flow index stabilizer, wherein the melt flow index stabilizer adopts phosphate comprising more than one of zinc phosphate and sodium phosphate. Phosphate is taken as the melt flow index stabilizer, the principle is as follows: phosphate contains phosphorus atoms, the phosphorus atoms and metal ions can form a complex with high thermal stability, and the complex can be dissolved in a polymer PC material and cannot be precipitated out of the material, so that the metal ions are inactivated. Further, PC cannot be degraded through catalysis of the metal ions, and the melt flow index is stabilized. The PC composition cannot be degraded in an injection molding process, splay marks and silver streaks cannot be produced, and the plating performance of the PC composition is good.
Description
Technical field
The present invention relates to and belongs to high-molecular organic material, is specifically related to a kind of PC composition and method of making the same.
Background technology
In general, electronic and electrical equipment shape is complex, need higher melt index to ensure size and the caliper uniformity of equipment for the PC resin of electronic and electrical equipment.Simultaneously as it has needed repeatedly to assemble in actual applications has maybe needed tapping technique, so also needing good anti-stress cracking performance and impact, tensile property.
Merlon is a kind of unbodied, the nontoxic transparent thermoplastic polymer of tasteless odorless, and it has mechanically and thermally and the combination property such as electricity, and creep is little, and product size is stable, has excellent electrical properties in high temperatures.But PC has again some defects, it is simply that easily there is bigger internal stress when injection moulding produces, to notch sensitive, cause that product ftractures, fraction defective is significantly high, it will be apparent that add cost.
Metallization of plastic surface is an important link of stereo circuit technology.Metallization of plastic surface produces circuit a lot of method, some patents such as US2004/0241422A1 and US7060421 reports and adds the inorganic powder with spinel compound structure in plastic substrate, these inorganic compound contain the elements such as copper, nickel, cobalt, chromium, ferrum, then ultraviolet wavelength (wavelength is 248nm, 308nm, 355nm) and infrared wavelength (1064nm and 10600nm) is utilized to activate.Above patent it should be particularly mentioned the oxide with spinel compound structure and can restore metal simple-substance under laser action, using metal simple-substance as nucleus, induction-chemical deposition metal, form metal level.But PC material contains hydroxyl and carboxyl, when contact has the inorganic particle of metal ion, can there is catalysed oxidn in metal ion, PC resin is produced Degradation, and this Degradation just can carry out at normal temperatures, thus causing that the shock resistance of material declines, affect its application.It addition, after there is this Degradation, injection moulding product surface out has water wave or material flower phenomenon, causes that product fraction defective rises.
How effectively overcoming this problem and research and develop this material of makrolon material of a kind of toughness reinforcing anti-stress cracking and will not degrade in injection moulding process, will not produce water wave and material flower phenomenon, and its plating performance is good, technique is the key solving problem at present.
Summary of the invention
In view of the problem existing for background technology, it is high that the present invention is just to provide a kind of overhanging beam impact strength, and the PC compositions that its stress crack resistance performance is excellent, and this material will not be degraded in injection moulding process, water wave and material flower phenomenon will not be produced, and its plating performance is good.
Another object of the present invention is to the preparation method that above-mentioned PC compositions is provided.
The present invention is achieved through the following technical solutions:
A kind of PC compositions, including PC material, spinel compound and melting means stabilizer, wherein composition weight number is: PC expects 88-95
Spinel compound: 1-7
Proof stress agent 1-8
Melting means stabilizer 0.1-1.4
Described melting means stabilizer is phosphate.
Described phosphate be zinc phosphate, sodium phosphate more than one.
Described PC compositions, also including parts by weight is the toughener of 1-10, the antioxidant of 0.3-1.5 and lubricant.
Described toughener is more than one of ABS, MBS, S-2001, SX-006.
Described lubricant is parts by weight shared by PETS, PETS is 0.1-0.5.
Described antioxidant includes primary antioxidant and auxiliary anti-oxidant, and described primary antioxidant is 1076, and auxiliary anti-oxidant is 168, and the ratio of weight and number of primary antioxidant and auxiliary anti-oxidant is: 0.1-0.5:0.2-1.
Described spinel compound is C.I. 14645., proof stress agent be PTW, ELvaloy and AX8900 more than one.
A kind of PC preparation method of composition,
(1) in proportion by PC material, toughener, antioxidant, spinel compound, lubricant and melting means stabilizer mix and blend 2-5min；
(2) material of mixing adds the heating of double screw extruder hopper to melt extrude and cooling granulation；
Prepare the PC compositions described in any one of claim 1-6.
Temperature in described double screw extruder is 220-260 DEG C, and screw speed is 300-550r/min.
A kind of new material, by above-mentioned prepared pellet through overbaking, temperature is baking 4h at 120 DEG C, then in temperature is: injection moulding when 300-320 DEG C, prepares new material.
It is an advantage of the current invention that:
1, utilizing phosphate to stop the spinel compound degraded to PC, principle: the degraded of PC material is to be undertaken by typical free radical lock reaction, the hydroperoxides generated in reaction cause new radical reaction.This reaction is usually at 120 DEG C to carry out, if there being the metal ion of catalytic action, when especially variable valency metal ions exists, the degraded of PC is played very strong catalytic action by variable valency metal.And this kind of catalytic action at room temperature just can carry out.The carrying out of degradation reaction such as following formula:
Spinel compound is owing to containing copper ion, copper ion is a kind of variable valency metal, the degraded of PC is played quite powerful catalytic action, causes PC material embrittlement, and melting means is at a relatively high, and material substantially loses its using value.
Importing phosphate (zinc, sodium), its mechanism of action is as follows:
Containing phosphorus atoms in phosphate, phosphorus atoms can form, with metal ion, the complex that heat stability is high, and this complex is soluble in macromolecule PC material, and will not precipitate out in material, so that metal ion loses activity.And then PC by its degraded of metal ion catalysis, will not reach stable melting means effect.
2, by adding proof stress agent, improve the stress crack resistance performance of material.
3, the compositions of the present invention is because having the composition of spinel compound structure, is also equipped with alternative plating function, it is possible in its formation conducting wire, surface.
Detailed description of the invention
Below by exemplary embodiment, the present invention will be further elaborated；But the scope of the present invention should not be limited to the scope of embodiment, any change not necessarily departing from present subject matter or change can be understood by those skilled in the art, all within protection scope of the present invention.
Embodiment 1
Engineering plastics suitable in LDS moulding process and preparation method thereof, wherein, should be applicable to the engineering plastics of LDS moulding process containing, for example lower component,
| PC | 90.7% |
| Spinel compound | 3.7% |
| Primary antioxidant | 0.1% |
| Auxiliary anti-oxidant | 0.2% |
| Lubricant PETS | 0.3% |
| Toughener S-2001 | 3% |
| Proof stress agent PTW | 3% |
Above-mentioned material is being weighed after well, is adding kneading mill carries out stirring and tremble 3 minutes.Pelletize is melt extruded then through double screw extruder.
Embodiment 2-9 preparation method such as embodiment 1, all Example formulations and test result such as following table:
By data above it is apparent that embodiment 2-9 is by adding melting means stabilizer, compared with the embodiment 1 not adding melting means stabilizer, notch impact strength dramatically increases, and the present invention has prominent advantage at the aspect of performance improving material.
It is above illustrating of the possible embodiments for the present invention, but can not limit the scope of the invention.
Claims (9)
1. a PC compositions, including PC material, spinel compound, proof stress agent and melting means stabilizer, wherein composition weight number is: PC expects 90-95
Spinel compound: 1-7
Proof stress agent 1-8
Melting means stabilizer 0.1-1.4
Described melting means stabilizer is phosphate.
2. PC compositions according to claim 1, described phosphate be zinc phosphate, sodium phosphate more than one.
3. PC compositions according to claim 1, also including parts by weight is the toughener of 1-10, the antioxidant of 0.3-1.5 and lubricant.
4. PC compositions according to claim 3, described toughener is more than one of ABS, MBS, S-2001, SX-006.
5. PC compositions according to claim 3, described lubricant is parts by weight shared by PETS, PETS is 0.1-0.5.
6. PC compositions according to claim 3, described antioxidant includes primary antioxidant and auxiliary anti-oxidant, and described primary antioxidant is 1076, and auxiliary anti-oxidant is 168, and the ratio of weight and number of primary antioxidant and auxiliary anti-oxidant is: 0.1-0.5:0.2-1.
PC compositions according to claim 1, described spinel compound is C.I. 14645., described proof stress agent be PTW, ELvaloy and AX8900 more than one.
7. a PC preparation method of composition,
(1) in proportion by PC material, toughener, antioxidant, spinel compound, lubricant and melting means stabilizer mix and blend 2-5min；
(2) material of mixing adds the heating of double screw extruder hopper to melt extrude and cooling granulation；
Prepare the PC compositions described in any one of claim 1-6.
8. compositions according to claim 7, the temperature in described double screw extruder is 220-260 DEG C, and screw speed is 300-550r/min.
9. a new material, pellet claim 7 or 8 prepared is through overbaking, and temperature is baking 4h at 120 DEG C, then in temperature is: injection moulding when 300-320 DEG C, prepares new material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226646.0A CN105802176A (en) | 2016-04-12 | 2016-04-12 | PC (polycarbonate) composition, preparation method thereof and novel material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226646.0A CN105802176A (en) | 2016-04-12 | 2016-04-12 | PC (polycarbonate) composition, preparation method thereof and novel material |
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| CN105802176A true CN105802176A (en) | 2016-07-27 |
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| CN201610226646.0A Pending CN105802176A (en) | 2016-04-12 | 2016-04-12 | PC (polycarbonate) composition, preparation method thereof and novel material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770491A (en) * | 2009-12-21 | 2012-11-07 | 三菱化学欧洲合资公司 | Aromatic polycarbonate composition |
| CN104419158A (en) * | 2013-08-29 | 2015-03-18 | 合肥杰事杰新材料股份有限公司 | Flame-retardant PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene copolymer) alloy material capable of being applied to electromagnetic shielding and preparation method thereof |
| CN104672879A (en) * | 2015-02-13 | 2015-06-03 | 厦门市天宇塑料工业有限公司 | Stress-crack-resistant light diffusion PC material for LED aluminum-coated lamp cup and preparation method of PC material |
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2016
- 2016-04-12 CN CN201610226646.0A patent/CN105802176A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770491A (en) * | 2009-12-21 | 2012-11-07 | 三菱化学欧洲合资公司 | Aromatic polycarbonate composition |
| CN104419158A (en) * | 2013-08-29 | 2015-03-18 | 合肥杰事杰新材料股份有限公司 | Flame-retardant PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene copolymer) alloy material capable of being applied to electromagnetic shielding and preparation method thereof |
| CN104672879A (en) * | 2015-02-13 | 2015-06-03 | 厦门市天宇塑料工业有限公司 | Stress-crack-resistant light diffusion PC material for LED aluminum-coated lamp cup and preparation method of PC material |
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Application publication date: 20160727 |