CN105885380B - Can permanent anti-static PC/ABS alloys and preparation method thereof - Google Patents
Can permanent anti-static PC/ABS alloys and preparation method thereof Download PDFInfo
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- CN105885380B CN105885380B CN201610414368.1A CN201610414368A CN105885380B CN 105885380 B CN105885380 B CN 105885380B CN 201610414368 A CN201610414368 A CN 201610414368A CN 105885380 B CN105885380 B CN 105885380B
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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Abstract
The invention provides it is a kind of can permanent anti-static PC/ABS alloys and preparation method thereof, it includes the following components matched by constant weight number：PC resin, ABS resin, ITO antistatic additive, toughener, antioxidant, lubricant.The preparation method obtains compound for PC resin, ABS resin, toughener, antioxidant and lubricant are mixed；The compound is added in double screw extruder by main spout；Feed mouth injection from the side of the double screw extruder by inert gas and ITO antistatic additive, by melt blending, extruding pelletization be obtain it is described can permanent anti-static PC/ABS alloys.The present invention is made ITO surfaces form inerting layer, is prepared permanent anti-static PC/ABS with PC/ABS melt blendings, can not only reach good antistatic effect, and effectively inhibit degraded of the metal ion to PC using inert gas and ITO antistatic additive co-extrusions.
Description
Technical field
The present invention relates to it is a kind of can permanent anti-static PC/ABS alloys and preparation method thereof, belong to high polymer material technology
Field.
Background technology
Makrolon (PC)/acrylonitrile-butadiene-styrene copolymer (ABS) is the engineering plastics of function admirable, tool
There are excellent shock resistance, heat resistance and excellent weatherability, be widely used in terms of automobile, electronic product.But PC/ABS
Alloy has high volume resistance, and once after friction, electrostatic not easily passs through conductive remove and is trapped in material surface, not only can shadow
The surface of material is rung, easy dust stratification more importantly has accumulation of static electricity hidden danger, it is therefore desirable to which many materials carry out antistatic place
Reason.Typically have several for the antistatic treatment mode of high polymer material：1. add conductive filler, such as carbon black, CNT
Or metal and metal oxide.However, for non-black product, carbon black and CNT can not typically be used, and carbon black
And CNT is easily reunited in the material, bad dispersibility；Metal and metal oxide easily promote PC to degrade again.2. add anti-
Electrostatic agent or conducting polymer, such as polyaniline, cetyl trimethylammonium bromide etc..But these antistatic additive or conductive polymer
Son is migrated due to migration, growth that can over time to material surface, is lost in, and antistatic persistence is poor.These methods are not
It is that antistatic effect difference is exactly easily PC is degraded, there is significant limitation.
Chinese patent CN105368030A discloses a kind of antistatic PC/ABS and preparation method thereof, by the carbon of activation
Nanotube carries out grafting with hyperbranched polyester quaternary ammonium salt and makes composite antistatic agent, and it is anti-to make antistatic master granule preparation with PC co-extrusions
Electrostatic PC/ABS alloys, although this method can improve the antistatic behaviour of material, its antistatic effect significant portion is depended on
Grafting efficiency, and polyester also has the possibility on transport materials surface, and permanent antistatic effect is bad.
The content of the invention
For defect of the prior art, it is an object of the invention to provide it is a kind of can permanent anti-static PC/ABS alloys and
Its preparation method.
The present invention is achieved by the following technical solutions：
In a first aspect, the invention provides it is a kind of can permanent anti-static PC/ABS alloys, it includes following parts by weight
Each component：
Comprehensive process considers that the parts by weight of different component should be antistatic strictly in above range with heat resistance
If agent is less than this scope, material can not reach good antistatic effect, if higher than this scope, can increase material cost.
Preferably, melt index of the described PC resin under the conditions of 300 DEG C/1.2kg is 8~20g/10min；
Preferably, the PC resin is bisphenol A polycarbonate resin.
Preferably, melt index of the ABS resin under the conditions of 220 DEG C/10kg is 10~15g/min.
Preferably, in the ABS resin, butadiene rubber content is 10~30wt%, and acrylonitrile content is 20
~30wt%, styrene-content is 40~70wt%.
Preferably, the weight average molecular weight of the ABS resin is 120000~160000.
If ABS can not meet ABS optimum principles used in antistatic PC/ABS in 3 conditions of the above, the present invention simultaneously：It is single
Body constituent content requires the requirement of ＞ molecular weight requirement ＞ melting means.
Preferably, in the ITO antistatic additive, the doping of tin is 8~20wt%, the doping of tin it is excessive or
It is very few to influence electrical efficiency.
Preferably, the toughener is methyl methacrylate, butadiene, styrene copolymer, propylene
One or more in sour lipid copolymer.
Preferably, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythrites
It is ester, 3- (3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecanes alcohol ester, three (2,4- di-t-butyls) phenyl-phosphites, double
One or more in octadecyl pentaerythritol bis-phosphite.
Preferably, the lubricant is silicone oil, silicone powder, paraffin, stearic acid, butyl stearate, oleamide, second
Support the one or more in bis-stearamides.
Second aspect, present invention also offers it is a kind of as the aforementioned can permanent anti-static PC/ABS alloys preparation method,
It comprises the following steps：
PC resin, ABS resin, toughener, antioxidant and lubricant are mixed, compound is obtained；
The compound is added in double screw extruder by main spout；
Mouth injection is fed from the side of the double screw extruder by inert gas and ITO antistatic additive, controls the extrusion temperature to be
220~280 DEG C, the rotating speed of double screw extruder be 600~900rpm, by melt blending, extruding pelletization be obtain it is described can
The PC/ABS alloys of permanent anti-static.
Using inert gas and ITO antistatic additive co-extrusions, ITO surfaces are made to form inerting layer, with PC/ABS melt blending systems
Standby permanent anti-static PC/ABS, can not only reach good antistatic effect, and effectively inhibit metal ion to PC's
Degraded.
Preferably, described inert gas is nitrogen, helium, the one or more of argon gas.
Preferably, described inert gas injection pressure is higher than 6.5MPa, and pressure preferably is 6.5~15MPa；
If pressure is less than 6.5MPa, it is difficult to form inert layer on antistatic additive surface, promote the scattered of antistatic additive, and higher than 15MPa
The inert layer formation to material has no too many facilitation effect afterwards, can increase facility cost on the contrary.
Compared with prior art, the present invention has following beneficial effect：
Inert gas and ITO antistatic additive are fed mouth from side by high-pressure pump and injected by the present invention, lazy in extrusion
Property gas ITO surfaces formed one layer of inertia oxide layer, not only inhibit wherein Sn4+Degraded to PC, and promote anti-quiet
Electric agent is scattered in PC/ABS；ITO and PC/ABS after the inerting of surface is granulated by melting extrusion, obtains permanent anti-static
PC/ABS alloys.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
The raw material that comparative example and embodiment are used in the present invention is specially：
PC resin is the 7025PJ of Mitsubishi Chemical；
ABS resin is the ABS8391 of Gaoqiao Petrochemical Company；
Antistatic additive is the positive transparent powder of electroconductive ITO in Shanghai Shanghai；
Toughener is the EM500 of LG company；
Antioxidant is the IRGANOX 1010 of BASF AG；
Lubricant is morning twilight GM-100 silicone powders.
Inert gas is nitrogen.
Embodiment 1
The present embodiment is related to a kind of preparation method of permanent anti-static PC/ABS alloys, and this method is by 7025PJ type PC trees
The parts by weight of fat 70, the parts by weight of ABS8391 resins 25, the parts by weight of EM500 toughener 5,3- (3,5- di-tert-butyl-hydroxy phenyl)
The parts by weight of propionic acid n-octadecane alcohol ester antioxidant 0.2, the parts by weight of dimethyl-silicon oil lubricant 0.2 are equal in high-speed mixer mixing
It is even, by high-pressure pump by N2Injection is fed from side with the parts by weight of ITO antistatic additive 10, it is molten by double screw extruder with PC/ABS resins
Melt blending extrusion, it is 220~280 DEG C to control extrusion temperature, and screw speed is 600~900rpm, after underwater cutpellet is dried
Obtain product.
Embodiment 2
The preparation method of the present embodiment is same as Example 1, and raw material proportioning is shown in Table 1.
Embodiment 3
The preparation method of the present embodiment is same as Example 1, and raw material proportioning is shown in Table 1.
Embodiment 4
The preparation method of the present embodiment is same as Example 1, and raw material proportioning is shown in Table 1.
Comparative example 1
The preparation method of this comparative example is substantially the same manner as Example 1, and difference is not to be passed through nitrogen during blending extrusion,
Raw material proportioning is shown in Table 1.
Comparative example 2
The preparation method of this comparative example is substantially the same manner as Example 1, and difference is not to be passed through nitrogen during blending extrusion,
Raw material proportioning is shown in Table 1.
Embodiment 5
The present embodiment is substantially the same manner as Example 2, and difference is to use high-pressure helium, prepares a kind of permanent anti-
Electrostatic PC/ABS alloys.
Embodiment 6
The present embodiment is substantially the same manner as Example 2, and difference is to have used the type PC resin of Beyer Co., Ltd 2800 and platform
Change AX4000 type ABS resins, prepare a kind of permanent anti-static PC/ABS alloys.
Embodiment 7
A kind of preparation method of the high PC/ABS alloys of weld bond good appearance intensity, this method is by 2800 type PC resins
80 parts by weight, the parts by weight of Gaoqiao Petrochemical Company ABS8424 resins 15, the parts by weight of EM500 toughener 5, the parts by weight of ITO antistatic fillers 8,
The parts by weight of 1010 antioxidant of IRGANOX 0.3, the parts by weight of dimethyl-silicon oil lubricant 0.2 are well mixed in high-speed mixer, will
Material after well mixed adds double screw extruder melt blending extrusion, and it is 220~280 DEG C to control extrusion temperature, and screw rod turns
Speed is 600~900rpm, obtain product after underwater cutpellet is dried.
| Component | Comparative example 1 | Comparative example 2 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| PC resin | 60 | 80 | 60 | 80 | 60 |
| ABS resin | 35 | 15 | 35 | 15 | 35 |
| ITO | 5 | 5 | 5 | 5 | 10 |
| EM500 | 5 | 5 | 5 | 5 | 5 |
| IRGANOX1010 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| GM-100 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| N2 | × | × | √ | √ | √ |
Table 1
Note："/" represents to be free of the component in table 1, and "×" represents not lead to nitrogen, and " √ " represents to be passed through nitrogen.
After composition particle prepared by above-mentioned comparative example and embodiment is fully dried, wafer test is pressed on trigger squeeze
Specific insulation, tester is the ZC-36 type meggers of Shanghai precision instrumentation Co., Ltd, and melt index test condition is
260℃*5kg。
The performance of the PC/ABS alloys prepared to embodiment 1~3 and comparative example 1~2 detects, testing result such as table
Shown in 2.
Table 2
Note:" ☆ " is more, illustrates that dust is more much thicker.
PC/ABS alloys as shown in table 2, are pressed into diameter 50mm by each comparative example and embodiment test result, thickness 2mm's
Disk carries out the test of specific insulation according to GB1410 standards.
Comparative example 1 and embodiment 2 and embodiment 4 are contrasted, after inert gas is passed through, PC/ABS melting means is reduced from 32.5
To 23.8, it was demonstrated that be passed through the degraded that inert gas inhibits material, and the data of specific insulation are proved after ITO content increases
ITO can significantly improve PC/ABS antistatic behaviour.Comparative example 2 and embodiment 3 are contrasted, inert gas and ITO are fed from side together
After addition, PC/ABS volume resistance is reduced to 1.2 × 1010Ω .cm, superficial dust situation also has change after placing one month.
Comparative example 2 and embodiment 3, the data comparison of embodiment 4 also indicate that ITO and inert gas are fed addition from side together and can not only suppressed
Sn4+Degraded to PC, moreover it is possible to prepare the good PC/ABS alloys of antistatic property.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (13)
1. it is a kind of can permanent anti-static PC/ABS alloys preparation method, it is characterised in that comprise the following steps：
PC resin, ABS resin, toughener, antioxidant and lubricant are mixed, compound is obtained；
The compound is added in double screw extruder by main spout；
Feed mouth injection from the side of the double screw extruder by inert gas and ITO antistatic additive, control extrusion temperature be 220~
280 DEG C, the rotating speed of double screw extruder be 600~900rpm, by melt blending, extruding pelletization is to obtain described can forever resisting
The PC/ABS alloys of electrostatic；
It is described can the PC/ABS alloys of permanent anti-static include each component of following parts by weight：
2. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that the ABS
In resin, butadiene rubber content be 10~30wt%, acrylonitrile content be 20~30wt%, styrene-content be 40~
70wt%.
3. as claimed in claim 1 or 2 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that it is described
The weight average molecular weight of ABS resin is 120000~160000.
4. as claimed in claim 3 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that the ABS
Melt index of the resin under the conditions of 220 DEG C/10kg is 10~15g/min.
5. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that described PC
Melt index of the resin under the conditions of 300 DEG C/1.2kg is 8~20g/10min.
6. as described in claim 1 or 5 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that it is described
PC resin is bisphenol A polycarbonate resin.
7. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that the ITO
In antistatic additive, the doping of tin is 8~20wt%.
8. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that the toughness reinforcing
Agent is the one or more in methyl methacrylate, butadiene, styrene copolymer, acrylate analog copolymer.
9. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that the antioxygen
Agent is four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters, 3- (3,5- di-tert-butyl-hydroxy phenyls)
In propionic acid n-octadecane alcohol ester, three (2,4- di-t-butyls) phenyl-phosphites, distearyl pentaerythritol diphosphite
It is one or more of.
10. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that the profit
Lubrication prescription is the one or more in silicone oil, silicone powder, paraffin, stearic acid, butyl stearate, oleamide, ethylene bis stearamide.
11. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that it is described
Inert gas is nitrogen, helium, the one or more of argon gas.
12. as claimed in claim 1 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that it is described
Inert gas injection pressure is higher than 6.5MPa.
13. as claimed in claim 12 can permanent anti-static PC/ABS alloys preparation method, it is characterised in that it is described
Inert gas injection pressure is 6.5~15MPa.
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| CN102585468B (en) * | 2011-01-06 | 2015-10-07 | 合肥杰事杰新材料股份有限公司 | A kind of high-temp resistant fire-retarding antistatic PC/ABS alloy material and preparation method thereof |
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