CN105504745B - A kind of polycarbonate composite material - Google Patents
A kind of polycarbonate composite material Download PDFInfo
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- CN105504745B CN105504745B CN201510988090.4A CN201510988090A CN105504745B CN 105504745 B CN105504745 B CN 105504745B CN 201510988090 A CN201510988090 A CN 201510988090A CN 105504745 B CN105504745 B CN 105504745B
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of polycarbonate composite materials, include the makrolon of 30 80 parts by weight；The ABS of 5 40 parts by weight；The filler of 5 80 parts by weight；Wherein, the weight content of the total weight based on polycarbonate composite material, copper is 0.01ppm 20ppm.Surprisingly it has been found that, the present invention by adding the copper-containing compound with relatively low soluble copper content in the composite, and reduce or avoid the addition of other copper-containing compounds, the content of copper in composite material is controlled within the scope of 0.01 20ppm, it not only can be to avoid the pretreatment to filler powder, and can also stabilising system neutral and alkali ion, make polycarbonate composite material obtained that there is the molding toughness being obviously improved and molding stability in use, moreover it is possible to take into account the rigidity of packing belt.
Description
Technical field
The invention belongs to polymer modification fields, and in particular to there is one kind improvement molding toughness and molding to use surely
Qualitative polycarbonate composite material.
Background technology
Polycarbonate has excellent heat resistance and compared with high-impact, is widely used in electrical/electronic product, vapour
The exterior materials such as vehicle component field.In recent years, being thinning for molded product that resin combination is molded with is developed, at
The raising of the various physical property of type product requires to be continuously improved.
Better rigidity can be obtained by adding filler in makrolon, but inevitably brings alkalinity in filler
Metal ion, alkaline metal ion exists and can not only influence the color of filler, but also in PC products can cause to be molded tough
Property rapid drawdown and be molded stability in use reduction.
The present invention surprisingly it has been found that, in the polycarbonate composite material containing filler, by addition have it is relatively low solvable
The copper-containing compound of property copper content and reduction avoid the addition of other copper-containing compounds not only can be to avoid to filler powder
The pretreatment of body, and can also stabilising system neutral and alkali ion, so that polycarbonate composite material obtained is had and be obviously improved
It is molded toughness, moreover it is possible to take into account the rigidity of packing belt.
Invention content
The purpose of the present invention is to provide a kind of polycarbonate composite materials, by being added in polycarbonate composite material
Micro copper can make polycarbonate composite material obtained have improved molding toughness and molding stability in use,
The rigidity of packing belt can also be taken into account.
The present invention is achieved by the following technical solutions：
A kind of polycarbonate composite material, including following component：
The makrolon of 30-80 parts by weight；
The ABS of 5-40 parts by weight；
The filler of 5-80 parts by weight；
Wherein, the weight content of the total weight based on polycarbonate composite material, copper is 0.01ppm-20ppm.
In polycarbonate composite material, better rigidity can be obtained by adding a certain amount of filler, in most of filler
More or less meeting contains a small amount of metal ion in alkalinity（Such as Mg2+, Al3+, Cu2+, Fe3+）, these alkalinous metals from
The presence of son can not only influence the color of filler, but also the molding toughness rapid drawdown of material and molding can be caused to use in PC finished products
The reduction of stability.The present invention by adding the copper-containing compound with relatively low soluble copper content in the composite, and
Reduce or avoid the addition of other copper-containing compounds not only can be to avoid the pretreatment to filler powder, but also it can also liptinite
It is neutral and alkali ion, makes polycarbonate composite material obtained that there is the molding toughness being obviously improved and molding stability in use,
The rigidity of packing belt can also be taken into account.The additive amount of copper-containing compound makes the content of copper in composite material control in 0.01-
20ppm is advisable, and since polycarbonate resin is to metal ion-sensitive, if the too high levels of copper, composition is in life
It can degrade in production and process, performance generates decaying, while colour stability can decline.
Preferably, the weight content of the total weight based on polycarbonate composite material, copper is 0.1ppm-10ppm, more
Preferably 1ppm-5ppm.
Wherein, the copper derive from copper-containing compound, be chosen in particular from copper chloride, copper nitrate, copper sulphate, complex copper,
One or more of copper ion ionomer etc..
The makrolon is selected from the homo-polycarbonate or Copolycarbonate for including repetitive structure carbonate unit.
The makrolon can pass through this with the weight average molecular weight of about 15000-40000, weight average molecular weight
Method well known to field goes to measure.Using the makrolon in this weight average molecular weight range as modified component, it can take into account and add
Work mobility and mechanical performance, if weight average molecular weight is less than 15000, modified composition can lose toughness, cannot
Meet the requirement of product, if weight average molecular weight is higher than 40000, in processing difficulties, rejection rate and energy consumption can be increased.
It is 2.0-4.0 that the makrolon, which is provided simultaneously with PDI coefficients, and PDI coefficients are polydispersity index, are based on the poly- carbon of BPA
Acid esters standard gel chromatography determination.PDI values are greater than or equal to the homogeneity that 1, PDI values indicate polymer molecular chain.
It is 3g/ according to 300 DEG C of polycarbonate melt flow rates measured under 1.2kg loads of ASTM D1238
10min-30g/10min；The general forming temperature of composition is 300 DEG C, under this processing temperature, if makrolon
Flow rate is too low, then viscosity is excessive, and the poor compatibility with other each components in composition eventually leads to the shakiness of properties of product
Qualitative raising shows that molecule segment endgroup content is higher if the flow rate of makrolon is more than 30g/10min, activity
Height, the mechanical performance and colour stability of product are easy to be caused to fail by the invasion of heat and oxygen in process.
The ABS refers to acrylonitrile-butadiene-phenylethene grafted copolymer, is to prepare by methods known in the art
, it can be prepared by emulsion method or solwution method, specifically, first by conjugated diene, such as butadiene or other
Copolymerizable monomer, if styrene polymerization prepares graft copolymer to provide main polymer chain, after forming main polymer chain,
By at least one grafted monomers, and specific two kinds polymerize there are main polymer chain to obtain graft copolymerization
Object.
ABS can be obtained by emulsion method or mass polymerization.
Acrylonitrile Butadiene-Styrene copolymer has the average particle size of 500nm to 2000nm, the preferably average particle size with 750nm-1250nm,
The average particle size of more preferable 900nm to 1100nm.If average particle size is more than 2000nm, the dispersibilities of ABS in the base can be big
Big to reduce, if average particle size is less than 500nm, synthesis technology requirement is harsher, and yield is relatively low, cannot meet industrialized want
It asks.
The glass transition temperature of Acrylonitrile Butadiene-Styrene copolymer is more than 25 DEG C, preferably greater than 70 DEG C, more preferably greater than 100 DEG C.Vitrifying
Temperature is too low, and rubber content is excessively high to influence compatibility, and the excessively high then ABS polarity of glass transition temperature is high, and surface energy is big, increases
The difficulty of dispersion.
The filler is mineral filler, is specifically as follows talcum powder, wollastonite, kaolin, clay, whisker, diatomite etc.
It is 20um to 90um Deng, volumetric surface product value.
The filler can be without any surface treatment, can also be coating processing, such as alkyl surface packet
It covers, epoxy-surface processing, amide surface processing, hydroxy silicon oil, alkyl silane, methoxy silane, the processing such as sulfonic group.
According to different purposes needs, polycarbonate composite material of the invention can further include other auxiliary agents,
Such as antioxidant, light stabilizer, impact modifier, fire retardant, fluorescent whitening agent, lubricant, plasticizer, toughener, antistatic
Agent, releasing agent, pigment etc..The 0-20 parts by weight of total composite material are accounted for according to the addition of the different other auxiliary agents of needs.
The antioxidant in suffocated amine antioxidant, Hinered phenols antioxidant or phosphite ester kind antioxidant one
Kind or it is several, specific examples thereof include one or two kinds of or more mixtures in 1010,168,1076,445,1098；
The toughener is EVA types toughener, EMA types toughener, ASA types toughener, AES types toughener, SAS type toughenings
One or more mixtures in agent, esters of acrylic acid toughener, organosilicon toughener.
The light stabilizer is the mixing of one or more of hindered amines or ultra-violet absorber, can specifically be enumerated
Go out one or two kinds of or more mixture in UV-944, UV-234,770DF, 328,531,5411；
The impact modifier be PTW, one kind in styrene-ethylene/butylene-styrene block copolymer SEBS or
Two kinds of mixture；
The fire retardant be phosphorus flame retardant, be specifically as follows bis- (diphenyl phosphoester) BDP of bisphenol-A, red phosphorus,
One or two kinds of or more mixture in OP1240, OP1230;
The fluorescent whitening agent is a kind of or the two mixture in double triazine amino-stilbenes, titanium dioxide;
The lubricant be talcum powder, ethylene bis stearamide EBS, erucyl amide, zinc stearate, one kind in silicone oil or
The mixture of two kinds of person or more；
The plasticizer is one or two kinds of or more in glycerine, citric acid, butyl citrate, epoxidized soybean oil etc.
Mixture;
The antistatic agent is permanent antistatic agent, and specific examples thereof include PELESTAT-230, PELESTAT-
6500, one or two kinds of or more mixture in SUNNICO ASA-2500；
The releasing agent is silicone oil, paraffin, White Mineral Oil, one or two kinds of or more mixture in vaseline；
The pigment is carbon black, black race, titanium dioxide, zinc sulphide, phthalocyanine blue, one or two kinds of or more in fluorescent orange
Mixture.
The access approaches of copper of the present invention, can be by directly adding in polycarbonate composite material process
Add copper-containing compound, the addition of copper-containing compound is so that the content of copper reaches 0.01ppm-20ppm and is in composite material
It is suitable.
Polycarbonate composite material of the present invention is 12.6mm*3.2mm in size, and length is more than 100mm, temperature 23
DEG C bending modulus be more than 3000MPa.
Polycarbonate composite material of the present invention is 1.2mm in thickness, and the molding toughness that length and width are 100mm*100mm is
A grades.
The polycarbonate composite material of the present invention is due to excellent bending modulus and molding toughness, can be applied to thin-walled
There is product the characteristic of enhancing, such as notebook computer casing, household appliances shell etc. to need the field of relatively high rigidity.
Compared with prior art, the present invention having the advantages that：
Experiment surprisingly it has been found that, the present invention by adding the cupric with relatively low soluble copper content in the composite
Object is closed, and reduces or avoid the addition of other copper-containing compounds, the content of copper in composite material is controlled in 0.01-
Within the scope of 20ppm, not only can to avoid the pretreatment to filler powder, but also can also stabilising system neutral and alkali ion, make to be made
Polycarbonate composite material there is the molding toughness that is obviously improved and molding stability in use, moreover it is possible to take into account the rigid of packing belt
Property.
Specific implementation mode
It is further illustrated the present invention below by specific implementation mode, following embodiment is the preferable embodiment party of the present invention
Formula, but embodiments of the present invention are not limited by following embodiments.
PC1：Homopolymer, weight average molecular weight 22000, PDI coefficients are 2.0, and melt flow rate (MFR) is 3g/10min Japan
Light extraction；
PC2：Homopolymer, weight average molecular weight 30000, PDI coefficients are 3.0, and melt flow rate (MFR) is 10g/10min days
This light extraction；
PC3：Copolymer, siloxane polycarbonate copolymer, weight average molecular weight 35000, PDI coefficients are 4.0, melt flow
Dynamic rate is 30g/10min Japan light extraction；
ABS1：SAN is grafted butadiene, average particle size 1000nm, 110 DEG C of glass transition temperature；
ABS2：SAN is grafted butadiene, average particle size 750nm, 80 DEG C of glass transition temperature；
ABS3：SAN is grafted butadiene, average particle size 1500nm, 60 DEG C of glass transition temperature；
Copper-containing compound：It is purchased in market；Filler 1：Talcum powder, volumetric surface product are 29um, alkyl surface cladding
Imery；
Filler 2：Wollastonite, volumetric surface accumulate 46um, and alkyl surface coats Nyclos；
Other auxiliary agents：Toughener：MBS Mitsubishis
Antioxidant 1076, ciba
Irgasfos 168, ciba
Releasing agent PETS, Long Sha
Light stabilizer 5411, cyanogen are special
Embodiment 1-14 and comparative example 1-2：The preparation of polycarbonate composite material
It is formulated by shown in table 1, makrolon, ABS resin, copper-containing compound, filler is blended in high mixer, obtained
To pretreated resin matrix；After pretreated resin matrix and other auxiliary agents are proportionally weighed, by high mixer or
Mixing machine is completed to be blended, and extrusion temperature is 240 DEG C, crosses water cooling, and granulation obtains the polycarbonate composite material of cylindrical particle.Respectively
Component it is as shown in table 1 with when the performance test results.
Each method of evaluating performance：
（1 ）Bending modulus：
By polycarbonate composite material injection molding under 260 DEG C of injection temperature, mold temperature is 100 DEG C, batten ruler
The very little test sample for 12.6mm*3.2mm and length more than 100mm uses the omnipotent of Shimadzu Corporation
Testing machine Autogragf, measures the bending modulus at 23 DEG C, and sensor pressure sensitivity bar speed is 1mm/min.
（2）It is molded toughness：
By polycarbonate composite material injection molding under 260 DEG C of injection temperature, mold temperature is 100 DEG C, batten ruler
It is very little to be
100mm*100mm*1.5mm after placing 48 hours at room temperature, carries out 180 degree and bends back and forth, and record test film goes out
The bending number of existing crackle.Bending number is then judged as A+ grades more than 30 times, and it is A that bending number, which is less than 30 times and more than 20 times,
Grade, it is A- grades that bending number, which is less than 20 times and more than 10 times, and it is B grades that bending number, which is less than 10 times and more than 5 times, and bending number is small
It it is C grades in 5 times and more than 2 times, it is D grades that bending number, which is less than 2 times,.
（3）It is molded stability in use assessment：
10g polycarbonate composite material particles are fitted into the flask that capacity is 100cc.And the deionized water of 30cc is poured into,
By flask
It immerses in 85 DEG C of water-bath after 4 hours, acid base titration is carried out, due to polycarbonate composite material neutral and alkali substance
Change in the presence of the pH-value of deionized water can be caused.PH value be 6.8-7.0 be then judged as it is excellent, pH value be more than 7.0 be less than 7.2
Then it is judged as good, pH value is to be less than 7.3 more than 7.2 to judge preferably, and pH value is more than 7.5 to be judged as difference.
（4）The content assaying method of copper：
The particle 2g of accurate weighing polycarbonate composite material in assay balance is poured into 100ml resolution bottles, is then added
The concentrated sulfuric acid 5ml for entering 97% heats 10 minutes in 300 DEG C of iron plate heating instruments of preset temperature, then adds 68% nitric acid
5ml, then heating 20 minutes is kept, so that particulate matter is decomposed postcooling completely to room temperature, is added in the hydrogen peroxide of 20ml with acidity extremely
After pH value is 7, aforesaid liquid is diluted with deionized water, liquid is imported by sample feeding pipe in ICP detecting instruments and measures copper
Concentration.
The proportioning of 1 embodiment 1-14 of table and comparative example 1-2 each components（Parts by weight）And the performance test results
The content of copper in polycarbonate composite material is can be seen that in 0.01-20ppm from the embodiment 1-14 of table 1
In range, the bending modulus of polycarbonate composite material is more than 3000MPa, and molding tough grade is A grades, while also being had preferable
Stability in use.In comparative example 1-2, when the content of copper in polycarbonate composite material is less than 0.01ppm or is more than
When 20ppm, the bending modulus of polycarbonate composite material is less than 3000MPa, and molding tough grade is poor, and stability in use is poor.
It can thus be seen that the content by controlling copper in polycarbonate composite material, the makrolon composite wood being prepared
Expect that there is the molding toughness being obviously improved and molding stability in use, moreover it is possible to take into account the rigidity of packing belt, excellent combination property.
Claims (11)
1. a kind of polycarbonate composite material, which is characterized in that including following component：
The makrolon of 30-80 parts by weight；
The ABS of 5-40 parts by weight；
The filler of 5-80 parts by weight；
Wherein, the weight content of the total weight based on polycarbonate composite material, copper is 0.01ppm-20ppm；
The filler is mineral filler；
The copper derive from copper-containing compound, the copper-containing compound be copper chloride, copper nitrate, copper sulphate, complex copper or
One or more of copper ion ionomer；
The makrolon is homo-polycarbonate or Copolycarbonate, and the weight average molecular weight of the makrolon is 15000-
40000, PDI coefficients are set to 2.0-4.0 based on BPA polycarbonate standard gel coefficients data measured by chromatography, and melt flow rate (MFR) is according to ASTM
300 DEG C of D1238 is measured as 3g/10min-30g/10min under 1.2kg loads.
2. polycarbonate composite material according to claim 1, which is characterized in that the weight content of the copper is to adopt
It measures with the following method：The particle 2g of accurate weighing polycarbonate composite material in assay balance pours into 100ml resolution bottles
In, 97% concentrated sulfuric acid 5ml is then added, heats 10 minutes in 300 DEG C of iron plate heating instruments of preset temperature, then adds
68% nitric acid 5ml, then heating 20 minutes is kept, so that particulate matter is decomposed postcooling completely to room temperature, is added in the hydrogen peroxide of 20ml
After being 7 with acidity to pH value, aforesaid liquid is diluted with deionized water, liquid is imported by sample feeding pipe in ICP detecting instruments and is surveyed
Determine the concentration of copper.
3. polycarbonate composite material according to claim 1, which is characterized in that based on the total of polycarbonate composite material
The weight content of weight, copper is 0.1ppm-10ppm.
4. polycarbonate composite material according to claim 3, which is characterized in that based on the total of polycarbonate composite material
The weight content of weight, copper is 1ppm-5ppm.
5. polycarbonate composite material according to claim 1, which is characterized in that the ABS is emulsion method or solution
Prepared by method, average particle size is 500nm to 2000nm, and glass transition temperature is more than 25 DEG C.
6. polycarbonate composite material according to claim 5, which is characterized in that the ABS average particle sizes are 750nm-
1250nm, glass transition temperature are more than 70 DEG C.
7. polycarbonate composite material according to claim 6, which is characterized in that the ABS average particle sizes be 900nm extremely
1100nm, glass transition temperature are more than 100 DEG C.
8. polycarbonate composite material according to claim 1, which is characterized in that the volumetric surface of the filler, which accumulates, is
20um to 90um.
9. polycarbonate composite material according to claim 1, which is characterized in that the polycarbonate composite material also wraps
Include the antioxidants of 0-20 parts by weight, light stabilizer, impact modifier, fire retardant, fluorescent whitening agent, lubricant, plasticizer, increasing
Tough dose, it is antistatic agent, releasing agent, one or more in pigment.
10. according to claim 1-9 any one of them polycarbonate composite materials, which is characterized in that the makrolon is multiple
Condensation material is 12.6mm*3.2mm in size, and length is more than 100mm, and the bending modulus that temperature is 23 DEG C is more than 3000MPa.
11. according to claim 1-9 any one of them polycarbonate composite materials, which is characterized in that the makrolon is multiple
Condensation material is 1.2mm in thickness, and the molding toughness that length and width are 100mm*100mm is A grades.
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| CN106317827A (en) * | 2016-08-24 | 2017-01-11 | 王鹏 | PC alloy material and preparing method and application thereof |
| CN106336639A (en) * | 2016-08-26 | 2017-01-18 | 金发科技股份有限公司 | PC alloy material and preparation method and application thereof |
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| CN107793722A (en) * | 2016-11-22 | 2018-03-13 | 金发科技股份有限公司 | A kind of polycarbonate compositions and preparation method thereof |
| CN107793721A (en) * | 2016-11-22 | 2018-03-13 | 金发科技股份有限公司 | A kind of polycarbonate compositions and preparation method thereof |
| CN107793723A (en) * | 2016-11-25 | 2018-03-13 | 金发科技股份有限公司 | A kind of polycarbonate compositions and preparation method thereof |
| CN107793724A (en) * | 2016-11-29 | 2018-03-13 | 金发科技股份有限公司 | A kind of polycarbonate compositions and preparation method thereof |
| CN107189327A (en) * | 2017-06-14 | 2017-09-22 | 陈丽 | A kind of high impact plastic material and preparation method thereof |
| CN110746756B (en) * | 2019-09-18 | 2021-08-20 | 金发科技股份有限公司 | Flame-retardant polycarbonate composite material and preparation method thereof |
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