CN102585469A - Halogen-free flame retardant antistatic PC/ABS alloy material and preparation method thereof - Google Patents
Halogen-free flame retardant antistatic PC/ABS alloy material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a halogen-free flame retardant antistatic PC/ABS (Poly Carbonate/ Acrylonitrile Butadiene Styrene) alloy material and a preparation method thereof, belonging to the technical field of alloy materials. The halogen-free flame retardant antistatic PC/ABS alloy material provided by the invention comprises the following components in parts by weight: 1-30 parts of ABS resin, 40-90 parts of PC resin, 8-20 parts of fire retardant, 1-10 parts of flexibilizer, 0.02-0.5 part of antistatic agent, 0.1-1 part of photo-thermal stabilizing agent and 0.1-1 part of processing agent. The invention also discloses a preparation method of the halogen-free flame retardant antistatic PC/ABS alloy material, which comprises the following steps of: mixing the 1-30 parts of ABS resin, the 40-90 parts of PC resin, the 8-20 parts of fire retardant, the 1-10 parts of flexibilizer, the 0.02-0.5 part of antistatic agent, the 0.1-1 part of photo-thermal stabilizing agent and the 0.1-1 part of processing agent, and then sending to a dual-screw extruder, mixing, extruding, staying, cooling, sized-dicing and obtaining a finished product of the halogen-free flame retardant antistatic PC/ABS alloy material. The halogen-free flame retardant antistatic PC/ABS alloy material provided by the invention has the advantages of simple process, continuity, high production efficiency and stable quality.
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; Good physical and mechanical property, surface hardness, higher intensity and flowability are arranged; And certain thermotolerance is arranged; But it is relatively poor that its shortcoming is a flame retardant properties, and very high electrical insulating property is arranged, and improves its performance so will in the PC/ABS alloy, add various properties-correcting agent at present.The cost effectiveness balance of halogenated flame retardant is good, adapt to wide, but since the amount of being fuming big; The gas that discharges has highly corrosive, and bromide fire retardant decomposites many bromos dibenzodioxin alkane and PBDF material under given conditions, and they have stronger carcinogenesis; For this reason, traditional halogen containing flame-retardant is faced with huge environmental stress, the non-halogenated main trend that has become fire-retardant Application and Development; And the higher insulativity of polymkeric substance itself makes static be not easy from charged plastics to disappear; Can generation be bonded on the plastic prod, give user or operator's electric shock of this product, telltale or IC chip malfunction or the like such as dust; Therefore need carry out the necessary plastic tape electrostatic research that prevents; Antistatic material commonly used in the market mainly is in material, to add some low-molecular-weight static inhibitor, mainly rely on low-molecular material to separate out to material surface formation hydrophilic layer generation antistatic effect, but its main drawback is the antistatic time weak point; Not water-fast washing; Promptly can lose antistatic effect in short period of time, for the material that adds halogen-free flame retardants, also may exert an influence simultaneously its flame retardant resistance; And some permanent antistatic agents in the market use additions big (generally in 20% left and right sides competence exertion effect), all can affect to aspects such as the mechanics of material and resistance toheats like this.
Summary of the invention
In order to overcome the above-mentioned defective that has technology to exist now, the purpose of this invention is to provide a kind of halogen-free flame-proof antistatic PC/ABS alloy material.
Another object of the present invention provides a kind of preparation method of above-mentioned halogen-free flame-proof antistatic PC/ABS alloy material.
Technical scheme of the present invention is following:
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 one or more the mixture in acrylonitrile-butadiene-phenylethene grafted copolymer (ABS), vinyl cyanide-ethylene, propylene elastomerics-phenylethene grafted copolymer (ABS), acrylonitrile-styrene-acrylic terpolymer (ASA) or the TEB 3K-butadiene-styrene graft copolymer (MBS).
It is 1.20g/cm that described PC resin is selected from specific density
3, melt temperature is 220-230 ℃ medium viscosity polycarbonate or one or several the mixture in the HV polycarbonate.
Described fire retardant is selected from inorganic phosphate, organophosphate, phosphorous-nitrogen compounds, red phosphorus, ammonium polyphosphate, primary ammonium phosphate, tetra-sodium three ammoniums, SULPHOSUCCINIC ACID ESTER, phosphorus oxide or red phosphorus and concentrates one or more the mixture in the master batch; Preferred organophosphorus compounds dihydroxyphenyl propane two (diphenyl phosphoester) (BDP).
It is that nuclear, vinylbenzene and TEB 3K are one or several the mixture in serial impact modifier (MBS), acrylic ester impact-resisting modifier (ACR), styrene-butadiene-styrene block copolymer (SBS), thermoplastic elastomer or the Zylox of the nucleocapsid structure of shell mutually that described toughner is selected from divinyl rubber.
Described static inhibitor is selected from a kind of in single wall multi-walled carbon nano-tubes or the multi-walled carbon nano-tubes.
Described optothermal stabilizer is selected from one or more the mixture in silicate, phosphite ester kind antioxidant, hindered amine or the hindered phenol of mineral acid lead salt, organic acid lead salt, metal soap thermal stabilizers, organic tin thermo-stabilizer, alkali-metal silicate, earth alkali metal; Preferred Hinered phenols antioxidant (Irganox1076) and phosphite ester kind antioxidant (Irganox168).
Described processing aid is selected from a kind of in lubricant or the Antidrip agent; Wherein, Lubricant is selected from solid paraffin, whiteruss, low molecular weight polyethylene, stearic amide, methylene bis stearic amide or N, one or several in the N-ethylene bis stearic acid amide (EBS) etc.; Antidrip agent is the fluorinated polymkeric substance, like polytetrafluoroethylene (PTFE) etc.
The present invention also provides a kind of preparation method of above-mentioned halogen-free flame-proof antistatic PC/ABS alloy material, and this method may further comprise the steps:
With 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 into after the mixing in the twin screw extruder, mixing, extrude, tie rod, cooling, pelletizing, acquisition finished product.
Described twin screw extruder, each section extruder temperature are 220-260 ℃, and screw speed is 100-500 rev/min.
The present invention compares with prior art, has following advantage and beneficial effect:
1, halogen-free flame-proof antistatic PC/ABS alloy material of the present invention adopts the preparation of twin screw expressing technique, 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; Adopt the preparation of twin screw expressing technique; Have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency, good except that antistatic property simultaneously, flame retardant properties is good, influence other performances of material hardly; Characteristics such as the shock strength of material is high, outward appearance is good, mobile height, chemical resistant properties is good, machine-shaping is good; And not halogen-containing, meet environmental regulation, can be used for 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; Adopt the preparation of twin screw expressing technique; Have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency, its maximum characteristics are not halogen-containing, with reply in the world day by day to the harsh requirement of Halogen flame-retardant system; Development potentiality is very big, and range of application is bigger.
Embodiment
Below in conjunction with embodiment the present invention is further described.
The performance test methods of halogen-free flame retardant PC/ABS alloy material that the static resistance of the present invention's preparation is good is seen table 1.
Table 1
| Physicals | Testing method |
| The molten finger | ASTM?D128 |
| Tensile strength | ASTM?D638 |
| Flexural strength | ASTM?D790 |
| Modulus in flexure | ASTM?D790 |
| The 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 a Daqing petrochemical, and it is an acrylonitrile-butadiene-phenylethene grafted copolymer.
The PC resin is the IR2200 of Japanese bright dipping, and it is a polycarbonate, and specific density is 1.20g/cm
3, melt temperature is 220-230 ℃ a medium viscosity polycarbonate.
The static inhibitor carbon nanotube is homemade multi-walled carbon nano-tubes, and is commercially available.
Fire retardant be homemade dihydroxyphenyl propane two (diphenyl phosphoesters) (BDP), 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 homemade EBS, and is commercially available.
Processing aid is tetrafluoroethylene (PTFE-A3800 of Mitsubishi).
Embodiment 1
With 750,90 parts of PCIR2200 of 1 part of ABS grand celebration, 8 parts of fire retardant BDP; 0.02 part static inhibitor multi-walled carbon nano-tubes, 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part of PTFE-A3800) 1 part of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1:; Mix through high-speed stirring, said mixture is sent in the twin screw extruder, under the conveying and shearing action of screw rod; Fully fusing, compound, again through head extrude, tie rod, cooling, pelletizing, pack at last.
Each section of twin screw extruder extruder temperature is controlled between 230-250 ℃, and screw speed is 400 rev/mins.
The mixture of preparation is injection molded into the standard batten of testing usefulness by standard size, and The performance test results is as shown in table 2.
Embodiment 2
With 750,74 parts of PCIR2200 of 10 parts of ABS grand celebrations, 13 parts of fire retardant BDP; 0.1 part static inhibitor multi-walled carbon nano-tubes, 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part of PTFE-A3800) 3 parts of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1:; Mix through high-speed stirring, said mixture is sent in the twin screw extruder, under the conveying and shearing action of screw rod; Fully fusing, compound, again through head extrude, tie rod, cooling, pelletizing, pack at last.
Each section of twin screw extruder extruder temperature is controlled between 230-250 ℃, and screw speed is 400 rev/mins.
The mixture of preparation is injection molded into the standard batten of testing usefulness by standard size, and The performance test results is as shown in table 2.
Embodiment 3
With 750,65 parts of PCIR2200 of 15 parts of ABS grand celebrations, 15 parts of fire retardant BDP; 0.3 part static inhibitor multi-walled carbon nano-tubes, 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part of PTFE-A3800) 5 parts of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1:; Mix through high-speed stirring, said mixture is sent in the twin screw extruder, under the conveying and shearing action of screw rod; Fully fusing, compound, again through head extrude, tie rod, cooling, pelletizing, pack at last.
Each section of twin screw extruder extruder temperature is controlled between 230-250 ℃, and screw speed is 400 rev/mins.
The mixture of preparation is injection molded into the standard batten of testing usefulness by standard size, and The performance test results is as shown in table 2.
Embodiment 4
With 750,40 parts of PCIR2200 of 30 parts of ABS grand celebrations, 20 parts of fire retardant BDP; 0.5 part static inhibitor multi-walled carbon nano-tubes, 2) and 0.8 part of processing aid (0.5 part of EBS and 0.3 part of PTFE-A3800) 10 parts of MBS class toughner, 0.3 part of optothermal stabilizer (1076: 168=1:; Mix through high-speed stirring, said mixture is sent in the twin screw extruder, under the conveying and shearing action of screw rod; Fully fusing, compound, again through head extrude, tie rod, cooling, pelletizing, pack at last.
Each section of twin screw extruder extruder temperature is controlled between 230-250 ℃, and screw speed is 400 rev/mins.
The mixture of preparation is injection molded into the standard batten of testing usefulness by standard size, and The performance test results is as shown in table 2.
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| The molten finger (220 ℃, 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 (℃) | 112.3 | 109.3 | 108.6 | 100.2 |
The above-mentioned description to embodiment is can understand and use the present invention for ease of this technical field volume those of ordinary skill; The personnel of skilled obviously can make various modifications to these embodiment at an easy rate, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (10)
1. halogen-free flame-proof antistatic PC/ABS alloy material, it is characterized in that: 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.
2. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1 is characterized in that: described ABS resin is selected from one or more the mixture in acrylonitrile-butadiene-phenylethene grafted copolymer, vinyl cyanide-ethylene, propylene elastomerics-phenylethene grafted copolymer, acrylonitrile-styrene-acrylic terpolymer or the TEB 3K-butadiene-styrene graft copolymer.
3. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1, it is characterized in that: it is 1.20g/cm that described PC resin is selected from specific density
3, melt temperature is 220-230 ℃ medium viscosity polycarbonate or one or several the mixture in the HV polycarbonate.
4. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1 is characterized in that: described fire retardant is selected from inorganic phosphate, organophosphate, phosphorous-nitrogen compounds, red phosphorus, ammonium polyphosphate, primary ammonium phosphate, tetra-sodium three ammoniums, SULPHOSUCCINIC ACID ESTER, phosphorus oxide or red phosphorus and concentrates one or more the mixture in the master batch.
5. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1 is characterized in that: it is that nuclear, vinylbenzene and TEB 3K are one or several the mixture in serial impact modifier, acrylic ester impact-resisting modifier, styrene-butadiene-styrene block copolymer, thermoplastic elastomer or the Zylox of nucleocapsid structure of shell mutually that described toughner is selected from divinyl rubber.
6. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1 is characterized in that: described static inhibitor is selected from a kind of in single wall multi-walled carbon nano-tubes or the multi-walled carbon nano-tubes.
7. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1 is characterized in that: described optothermal stabilizer is selected from one or more the mixture in silicate, phosphite ester kind antioxidant, hindered amine or the hindered phenol of mineral acid lead salt, organic acid lead salt, metal soap thermal stabilizers, organic tin thermo-stabilizer, alkali-metal silicate, earth alkali metal.
8. a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 1; It is characterized in that: described processing aid is selected from a kind of in lubricant or the Antidrip agent; Wherein, Lubricant is selected from solid paraffin, whiteruss, low molecular weight polyethylene, stearic amide, methylene bis stearic amide or N, one or several in the N-ethylene bis stearic acid amide; Antidrip agent is the fluorinated polymkeric substance.
9. the preparation method of the arbitrary described a kind of halogen-free flame-proof antistatic PC/ABS alloy material of claim 1 to 8, it is characterized in that: this method may further comprise the steps,
With 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 into after the mixing in the twin screw extruder, mixing, extrude, tie rod, cooling, pelletizing, acquisition finished product.
10. the preparation method of a kind of halogen-free flame-proof antistatic PC/ABS alloy material according to claim 9 is characterized in that: described twin screw extruder, each section extruder temperature are 220-260 ℃, and screw speed is 100-500 rev/min.
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