CN102585469B - A kind of halogen-free flame-proof antistatic PC/ABS alloy material and preparation method thereof - Google Patents
A kind of halogen-free flame-proof antistatic PC/ABS alloy material and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to technical field of alloy material, disclose a kind of halogen-free flame-proof antistatic PC/ABS alloy material and preparation method thereof.Halogen-free flame-proof antistatic PC/ABS alloy material disclosed by the invention comprises following component and weight part: ABS resin 1-30 part, PC resin 40-90 part, fire retardant 8-20 part, toughner 1-10 part, static inhibitor 0.02-0.5 part, optothermal stabilizer 0.1-1 part and processing aid 0.1-1 part.The invention also discloses the preparation method of halogen-free flame-proof antistatic PC/ABS alloy material, the method comprises the following steps: by 1 ~ 30 part of ABS resin, 40 ~ 90 parts of PC resins, 0.02 ~ 0.5 part of static inhibitor, 8 ~ 20 parts of fire retardants, 1 ~ 10 part of toughner, 0.1 ~ 1 part of optothermal stabilizer and 0.1 ~ 1 part of other processing aid, send in twin screw extruder after mixing, mixing, extrude, tie rod, cooling, pelletizing, acquisition finished product.Halogen-free flame-proof antistatic PC/ABS alloy material of the present invention, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency.
Description
Technical field
The invention belongs to technical field of alloy material, be specifically related to a kind of halogen-free flame-proof antistatic PC/ABS alloy material and preparation method thereof.
Background technology
PC/ABS (blend of polycarbonate and acrylonitrile-butadiene-styrene copolymer) resin is a kind of alloy material of excellent property, there are excellent physical and mechanical property, surface hardness, higher intensity and mobility, and have certain thermotolerance, but it is poor that its shortcoming is flame retardant properties, and have very high electrical insulating property, so various properties-correcting agent to be added in PC/ABS alloy at present to improve its performance.The cost effectiveness of halogenated flame retardant balances, adapt to wide, but because the amount of being fuming is large, the gas discharged has highly corrosive, and bromide fire retardant decomposites many bromos dibenzodioxin alkane and PBDF material under given conditions, they have stronger carcinogenesis, for this reason, traditional halogen containing flame-retardant is faced with huge environmental stress, the non-halogenated main trend having become fire-retardant Application and Development, and the higher insulativity of polymkeric substance itself makes electrostatic be not easy to disappear from charged plastics, can produce such as dust is bonded on plastic prod, to the user of this product or operator's electric shock, counter or integrated circuit (IC) chip malfunction etc., therefore need to carry out the necessary research preventing plastic tape electrostatic, antistatic material conventional in the market mainly adds some low-molecular-weight static inhibitor in the material, main dependence low-molecular material is separated out to material surface formation hydrophilic layer generation antistatic effect, but its main drawback is that antistatic time is short, not water-fastness, namely antistatic effect can be lost in short period of time, simultaneously for the material adding halogen-free flame retardants, also may have an impact to its flame retardant resistance, and some permanent antistatic agents in the market use addition comparatively large (generally in about 20% competence exertion effect), all can affect to the aspect such as mechanics and resistance toheat of material like this.
Summary of the invention
In order to overcome the above-mentioned defect having now technology to exist, the object of this invention is to provide a kind of halogen-free flame-proof antistatic PC/ABS alloy material.
Another object of the present invention is to provide a kind of preparation method of above-mentioned halogen-free flame-proof antistatic PC/ABS alloy material.
Technical scheme of the present invention is as follows:
The invention provides a kind of halogen-free flame-proof antistatic PC/ABS alloy material, this alloy material comprises following component and weight part:
ABS resin 1-30 part,
PC resin 40-90 part,
Fire retardant 8-20 part,
Toughner 1-10 part,
Static inhibitor 0.02-0.5 part,
Optothermal stabilizer 0.1-1 part,
Processing aid 0.1-1 part.
Described ABS resin is selected from the mixture of one or more in acrylonitrile-butadiene-phenylethene grafted copolymer (ABS), acrylonitrile-ethylenepropylene elastomerics-phenylethene grafted copolymer (ABS), acrylonitrile-styrene-acrylic terpolymer (ASA) or MBS graft copolymer (MBS).
It is 1.20g/cm that described PC resin is selected from relative density
3, melt temperature is one or several the mixture in the medium viscosity polycarbonate of 220-230 DEG C or high viscosity polycarbonate.
Described fire retardant is selected from inorganic phosphate, organophosphate, phosphorous-nitrogen compounds, red phosphorus, ammonium polyphosphate, primary ammonium phosphate, tetra-sodium three ammonium, phosphoric acid ester, phosphorus oxide or red phosphorus and concentrates the mixture of one or more in master batch; Two (diphenyl phosphoester) (BDP) of preferred organophosphorus compounds dihydroxyphenyl propane.
One or several mixture in the serial impact modifier (MBS) of the nucleocapsid structure that it be core, vinylbenzene and methyl methacrylate is shell that described toughner is selected from divinyl rubber, acrylic ester impact-resisting modifier (ACR), styrene-butadiene-styrene block copolymer (SBS), thermoplastic elastomer or silicon rubber.
Described static inhibitor is selected from the one in single wall multi-walled carbon nano-tubes or multi-walled carbon nano-tubes.
Described optothermal stabilizer is selected from the mixture of one or more in mineral acid lead salt, organic acid lead salt, metal soap thermal stabilizers, organic tin thermo-stabilizer, alkali-metal silicate, the silicate of alkaline-earth metal, phosphite ester kind antioxidant, hindered amine or hindered phenol; Preferred Hinered phenols antioxidant (Irganox1076) and phosphite ester kind antioxidant (Irganox168).
Described processing aid is selected from the one in lubricant or Antidrip agent, wherein, lubricant be selected from solid paraffin, whiteruss, low molecular weight polyethylene, stearic amide, methylene bis stearic amide or N, N-ethylene bis stearic acid amide (EBS) etc. one or several; Antidrip agent is fluorinated polymkeric substance, as tetrafluoroethylene (PTFE) etc.
Present invention also offers a kind of preparation method of above-mentioned halogen-free flame-proof antistatic PC/ABS alloy material, the method comprises the following steps:
By 1 ~ 30 part of ABS resin, 40 ~ 90 parts of PC resins, 0.02 ~ 0.5 part of static inhibitor, 8 ~ 20 parts of fire retardants, 1 ~ 10 part of toughner, 0.1 ~ 1 part of optothermal stabilizer and 0.1 ~ 1 part of other processing aid, send in twin screw extruder after mixing, mixing, extrude, tie rod, cooling, pelletizing, acquisition finished product.
Described twin screw extruder, each section of extruder temperature is 220-260 DEG C, and screw speed is 100-500 rev/min.
Compared with the existing technology, tool has the following advantages and beneficial effect in the present invention:
1, halogen-free flame-proof antistatic PC/ABS alloy material of the present invention, adopts twin screw extrusion process preparation, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency.
2, halogen-free flame-proof antistatic PC/ABS alloy material of the present invention, prepared by employing twin screw extrusion process, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency, simultaneously except antistatic property is excellent, except excellent flame retardancy, affect other performances of material hardly, the features such as the shock strength of material is high, outward appearance is good, mobility is high, chemical resistant properties is good, machine-shaping is good, and it is not halogen-containing, meet environmental regulation, can be used for the antistatic occasion electronic apparatus of the various needs of injection moulding and household appliances shell etc.
3, halogen-free flame-proof antistatic PC/ABS alloy material of the present invention, prepared by employing twin screw extrusion process, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency, its maximum feature is not halogen-containing, with reply in the world increasingly to the rigors of Halogen flame-retardant system, development potentiality is very large, and range of application is larger.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
The performance test methods of halogen-free flame retardant PC/ABS alloy material that static resistance prepared by the present invention is good is in table 1.
Table 1
| Physicals | Testing method |
| Melting means | ASTM D128 |
| Tensile strength | ASTM D638 |
| Flexural strength | ASTM D790 |
| Modulus in flexure | ASTM D790 |
| Izod notched Izod impact strength | ASTM D256 |
| Surface resistivity | GB/T 1410 |
| Vicat softening point | ASTM D1525 |
| Flame retardant resistance | UL 94 |
ABS resin is 750 of Daqing petrochemical, and it is acrylonitrile-butadiene-phenylethene grafted copolymer.
PC resin is the IR2200 of Japanese bright dipping, and it is polycarbonate, and relative density is 1.20g/cm
3, melt temperature is the medium viscosity polycarbonate of 220-230 DEG C.
Static inhibitor carbon nanotube is domestic multi-walled carbon nano-tubes, commercially available.
Fire retardant is two (diphenyl phosphoester) (BDP) of domestic dihydroxyphenyl propane, commercially available.
Toughner is the MBS class toughner of ROHM AND HAAS.
Optothermal stabilizer is Hinered phenols antioxidant (Irganox1076 of CIBA) and phosphite ester kind antioxidant (Irganox168 of CIBA) (weight ratio 1076: 168=1: 2).
Processing aid is domestic EBS, commercially available.
Processing aid is tetrafluoroethylene (PTFE-A3800 of Mitsubishi).
Embodiment 1
By 1 part of ABS grand celebration 750,90 parts of PCIR2200,8 parts of fire retardant BDP, 0.02 part of static inhibitor multi-walled carbon nano-tubes, 1 part of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1: 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part PTFE-A3800), mix through high-speed stirring, said mixture is sent in twin screw extruder, under the conveying and shearing action of screw rod, abundant fusing, compound, then extrude through head, tie rod, cooling, pelletizing, finally pack.
Twin screw extruder each section of extruder temperature controls between 230-250 DEG C, and screw speed is 400 revs/min.
The mixture of preparation is injection molded into the standard batten of test by standard size, the performance test results is as shown in table 2.
Embodiment 2
By 10 parts of ABS grand celebrations 750,74 parts of PCIR2200,13 parts of fire retardant BDP, 0.1 part of static inhibitor multi-walled carbon nano-tubes, 3 parts of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1: 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part PTFE-A3800), mix through high-speed stirring, said mixture is sent in twin screw extruder, under the conveying and shearing action of screw rod, abundant fusing, compound, then extrude through head, tie rod, cooling, pelletizing, finally pack.
Twin screw extruder each section of extruder temperature controls between 230-250 DEG C, and screw speed is 400 revs/min.
The mixture of preparation is injection molded into the standard batten of test by standard size, the performance test results is as shown in table 2.
Embodiment 3
By 15 parts of ABS grand celebrations 750,65 parts of PCIR2200,15 parts of fire retardant BDP, 0.3 part of static inhibitor multi-walled carbon nano-tubes, 5 parts of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1: 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part PTFE-A3800), mix through high-speed stirring, said mixture is sent in twin screw extruder, under the conveying and shearing action of screw rod, abundant fusing, compound, then extrude through head, tie rod, cooling, pelletizing, finally pack.
Twin screw extruder each section of extruder temperature controls between 230-250 DEG C, and screw speed is 400 revs/min.
The mixture of preparation is injection molded into the standard batten of test by standard size, the performance test results is as shown in table 2.
Embodiment 4
By 30 parts of ABS grand celebrations 750,40 parts of PCIR2200,20 parts of fire retardant BDP, 0.5 part of static inhibitor multi-walled carbon nano-tubes, 10 parts of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1: 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part PTFE-A3800), mix through high-speed stirring, said mixture is sent in twin screw extruder, under the conveying and shearing action of screw rod, abundant fusing, compound, then extrude through head, tie rod, cooling, pelletizing, finally pack.
Twin screw extruder each section of extruder temperature controls between 230-250 DEG C, and screw speed is 400 revs/min.
The mixture of preparation is injection molded into the standard batten of test by standard size, the performance test results is as shown in table 2.
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Melting means (220 DEG C, 10Kg) | 24 | 33 | 39 | 46 |
| Tensile strength (Mpa) | 64.5 | 64.8 | 63.8 | 65.2 |
| Flexural strength (Mpa) | 110 | 103 | 102 | 89 |
| Modulus in flexure (Mpa) | 2450 | 2432 | 2427 | 2246 |
| Izod notched Izod impact strength (J/m) | 680 | 600 | 560 | 450 |
| Density (g/cm 3) | 1.20 | 1.18 | 1.16 | 1.13 |
| Flame retardant resistance | V-0 | V-0 | V-0 | V-0 |
| Surface resistivity (Ω) | 10 11 | 10 8 | 10 6 | 10 3 |
| Vicat softening point (DEG C) | 112.3 | 109.3 | 108.6 | 100.2 |
Above-mentioned is can understand and apply the invention for ease of this technical field volume those of ordinary skill to the description of embodiment, person skilled in the art obviously can make various amendment to these embodiments easily, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art are according to announcement of the present invention, and the improvement made for the present invention and amendment all should within protection scope of the present invention.
Claims (4)
1. a halogen-free flame-proof antistatic PC/ABS alloy material, is characterized in that: this alloy material comprises following component and weight part,
It is 1.20g/cm that described PC resin is selected from relative density
3, melt temperature is one or several the mixture in the medium viscosity polycarbonate of 220-230 DEG C or high viscosity polycarbonate;
Described static inhibitor is selected from the one in Single Walled Carbon Nanotube or multi-walled carbon nano-tubes;
Described optothermal stabilizer is Hinered phenols antioxidant Irganox1076 and phosphite ester kind antioxidant Irganox168, and the weight part ratio of Hinered phenols antioxidant Irganox1076 and phosphite ester kind antioxidant Irganox168 is 1:2;
Described fire retardant is selected from the mixture of one or more in dihydroxyphenyl propane two (diphenyl phosphoester), phosphorous-nitrogen compounds, ammonium polyphosphate;
Described processing aid is 0.5 part of EBS and 0.3 part PTFE-A3800;
Described ABS resin is selected from the mixture of one or more in acrylonitrile-butadiene-phenylethene grafted copolymer, acrylonitrile-ethylenepropylene elastomerics-phenylethene grafted copolymer, acrylonitrile-styrene-acrylic terpolymer or MBS graft copolymer.
2. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1, is characterized in that: one or several the mixture in the serial impact modifier of the nucleocapsid structure that it be core, vinylbenzene and methyl methacrylate is shell that described toughner is selected from divinyl rubber, acrylic ester impact-resisting modifier, styrene-butadiene-styrene block copolymer, thermoplastic elastomer or silicon rubber.
3. the preparation method of a kind of halogen-free flame-proof antistatic PC/ABS alloy material described in claim 1 or 2, is characterized in that: the method comprises the following steps,
By 1 ~ 30 part of ABS resin, 40 ~ 90 parts of PC resins, 0.02 ~ 0.5 part of static inhibitor, 8 ~ 20 parts of fire retardants, 1 ~ 10 part of toughner, 0.1 ~ 1 part of optothermal stabilizer and 0.8 part of other processing aid, send in twin screw extruder after mixing, mixing, extrude, tie rod, cooling, pelletizing, acquisition finished product.
4. the preparation method of a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 3, it is characterized in that: described twin screw extruder, each section of extruder temperature is 220-260 DEG C, and screw speed is 100-500 rev/min.
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| CN115651384B (en) * | 2022-10-26 | 2024-03-22 | 金发科技股份有限公司 | PC/ABS alloy and preparation method and application thereof |
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