CN101591468A - A kind of low-smoke halogen-free flame retardant PC/ABS Alloy And Preparation Method - Google Patents
A kind of low-smoke halogen-free flame retardant PC/ABS Alloy And Preparation Method Download PDFInfo
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Abstract
The present invention relates to a kind of low-smoke halogen-free flame retardant PC/ABS Alloy And Preparation Method, take by weighing polycarbonate (PC) 40-75% by weight percentage, acrylonitrile-butadiene-phenylethylene multipolymer (ABS) 10-40%, composite flame-retardant agent 10-15%, the compound fumicants 0.2-2% that falls, compatilizer 2-16%, the low promotor 1-6% of being fuming, stablizer 0.1-0.5%, lubricant 0.1-0.6%, put into the homogenizer mixing 1-15 minute, and put into the screw extrusion press extruding pelletization after the discharging.Compared with prior art, the present invention has characteristics such as low-smoke, halogen-free flameproof and excellent combination property.
Description
Technical field
The present invention relates to the material alloys technical field, relate in particular to a kind of low-smoke halogen-free flame retardant PC/ABS Alloy And Preparation Method.
Background technology
Polycarbonate (PC)/acrylonitrile-butadiene-phenylethylene multipolymer (ABS) alloy is a kind of polyblend of excellent combination property, have good mechanical property of PC and thermal characteristics concurrently, have ABS good moldability, characteristics that the stress crack resistant ability is good again, be applied in automobile, household electrical appliances, fields such as communication equipment widely.The flame retardant properties of material plays an important role to people's life security, but when fire takes place, the amount of being fuming of plastic material also is the important factor that jeopardizes people's life.At present, people prepare that PC/ABS alloy fire retardant material is commonly used to have halogen fire retardant (as CN200610034295.X; CN200610033112.2; CN200610122383.5 etc.), the phosphoric acid ester fire retardant is (as CN00814695.0; CN98808107.5 etc.) and benzene sulfonamide acid alkali metal salt or alkaline earth salt fire retardant (CN 01820975.0) etc., wherein, halogen flame is effective, but unfriendly to environment, substituted by halogen-free flame retardants gradually, the addition that other halogen-free flame retardantss have is big, performance is caused detrimentally affect, although the good flame retardation effect that has, the amount of being fuming is big during burning, still can cause the very big threat of people's life security and living environment.
Summary of the invention
Purpose of the present invention is exactly low-smoke halogen-free flame retardant PC/ABS Alloy And Preparation Method that a kind of excellent combination property is provided for the weak point that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of low-smoke halogen-free flame retardant PC/ABS alloy is characterized in that this alloy comprises following component and weight percentage:
Polycarbonate (PC): 40-75%,
Acrylonitrile-butadiene-phenylethylene multipolymer (ABS): 10-40%,
Composite flame-retardant agent: 10-15%,
The compound fumicants that falls: 0.2-2%,
Compatilizer: 2-16%,
Low promotor: the 1-6% of being fuming,
Stablizer: 0.1-0.5%,
Lubricant: 0.1-0.6%.
Described composite flame-retardant agent is selected from two or more the compound in powder red phosphorus, microcapsule red phosphorus, encapsulated red phosphorus, red phosphorus master batch, nitrogen flame retardant, phosphoric acid ester fire retardant, phosphor nitrogen combustion inhibitor, organic silicon fibre retardant or the borate.
The described compound fumicants that falls is selected from ferrocene, ferrocene, organo-siloxane, polyethers, ether silicon graft copolymer, acrylamide, Dicyclopentadiene (DCPD) and closes two or more compound in iron, hydroxylimine hydrochloride, maleimide, aryl imine or the cyclopentadiene iron.
Described compatilizer is selected from maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride grafted ABS, the mixture of one or more in ethylene-vinyl alcohol copolymer, ethylene-vinyl acetate copolymer, maleic anhydride grafted ethene-vinyl acetate copolymer, glycidyl methacrylate graft polyethylene, glycidyl methacrylate graft polypropylene, silane grafted polyethylene, ethylene-acrylic acid copolymer, maleic anhydride graft styrene-butadiene-styrene multipolymer or the ethylene-acrylate copolymer.
The described low promotor of being fuming is selected from one or more the mixture in nano silicon, nano zine oxide, nano titanium oxide, nano-aluminium oxide, yttrium oxide, yttrium europium oxide, europium sesquioxide, lanthanum trioxide, terbium sesquioxide, Samarium trioxide or the Neodymium trioxide.
Described stablizer is selected from three (2, the 4-di-tert-butyl-phenyl) four [β-(3 ' phosphorous acid ester),, 5 '-di-t-butyl-4 '-hydroxy phenyl) propionic acid] pentaerythritol ester, N, [3-(3 for N '-two, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine, 4,4 '-(β, β '-dihydroxyl dipropyl oxygen phenyl) 2, a kind of or several mixture in 2-propane, 2,6 di tert butyl 4 methyl phenol or the Tyox B.
Described lubricant is selected from a kind of or several mixture in Zinc Stearate, stearic acid, ethylene bis-fatty acid amides, calcium stearate or the white oil.
The preparation method of a kind of low-smoke halogen-free flame retardant PC/ABS alloy, it is characterized in that, this preparation method is as follows: take by weighing polycarbonate (PC) 40-75% by weight percentage, acrylonitrile-butadiene-phenylethylene multipolymer (ABS) 10-40%, composite flame-retardant agent 10-15%, the compound fumicants 0.2-2% that falls, compatilizer 2-16%, the low promotor 1-6% of being fuming, stablizer 0.1-0.5%, lubricant 0.1-0.6% put into the homogenizer mixing 1-15 minute, put into the screw extrusion press extruding pelletization after the discharging.
The rotating speed of described homogenizer is 1200-9000 rev/min, and the rotating speed of screw extrusion press is 90-600 rev/min, and extruder temperature is 270-330 ℃.
Compared with prior art, the present invention adopts environment amenable halogen-free flame retardants, and the adding nano-metal-oxide carries out composite, make the PC/ABS alloy not only have excellent flame-retardant performance and excellent mechanical property, also have low characteristics of being fuming simultaneously, can be applicable to household electrical appliances, goods such as industry.Fire-retardant and burning the time has the extremely low amount of being fuming in view of this material, also can be widely used in the public place.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of low-smoke fire retardation PC/ABS Alloy And Preparation Method, its alloy formula is as shown in table 1:
Table 1
| Feed composition | Proportioning (weight %) |
| PC | 68 |
| ABS | 10 |
| Maleic anhydride grafted ABS | 5 |
| The phosphoric acid ester fire retardant | 8 |
| Borate | 3 |
| Hydroxylimine hydrochloride | 0.2 |
| Dicyclopentadiene (DCPD) closes iron | 0.8 |
| Nano-TiO 2 | 4 |
| N, N '-two [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine | 0.4 |
| Stearic acid | 0.6 |
Its preparation method is as follows: all feed composition are put into high mixer by said ratio mixed 3 minutes for 1200 rev/mins, use the screw extrusion press extruding pelletization then, the screw rod revolution is located at 120 rev/mins, and melt temperature is 270 ℃ in the screw rod.
Low-smoke, fire retardation PC/ABS alloy to a kind of excellent combination property of embodiment 1 gained carry out the performance test contrast, and mechanical property is tested with ISO.Test performance the results are shown in Table 2, the visible prepared low cigarette of the present invention, and fire retardation PC/ABS alloy is under flame retardant properties and mechanical property and situation that common fire retardation PC/the ABS alloy phase is worked as, and its amount of being fuming reduces greatly.
Table 2
| Test event | Embodiment 1 product | Common fire retardation PC/ABS |
| Tensile strength Mpa | 55 | 53 |
| Elongation at break % | 43 | 40 |
| Modulus in flexure Mpa | 2408 | 2304 |
| The socle girder notch shock | 22 | 23 |
| Flame retardant resistance | V0 | V0 |
| Smoke density | 600 | 1300 |
Embodiment 2
A kind of low-smoke fire retardation PC/ABS Alloy And Preparation Method, this alloy comprises following component and weight percentage:
Molecular weight is 10000 bisphenol A-type homopolymerization PC:75%,
Rubber content is the ABS:10% of 20% weight,
The nitrogen flame retardant: 8%,
Red phosphorus master batch: 2%
Ferrocene: 0.2%,
Organo-siloxane: 0.3%
Maleic anhydride inoculated polypropylene: 2.5%,
Lanthanum trioxide: 1.2%,
Three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester: 0.5%,
White oil: 0.3%.
Its preparation method comprises, takes by weighing raw material according to the above ratio, puts into high-speed mixer and mixing 2 minutes, puts into the twin screw extruder extruding pelletization after the discharging, and the rotating speed of screw extrusion press is 300 rev/mins, and the screw rod melt temperature is 300 ℃.
Embodiment 3
A kind of low-smoke fire retardation PC/ABS Alloy And Preparation Method, this alloy comprises following component and weight percentage:
Molecular weight is 100000 bisphenol A-type homopolymerization PC:40%,
Rubber content is 50% acrylonitrile-butadiene-phenylethylene multipolymer: 35%,
Powder red phosphorus: 2%,
Organic silicon fibre retardant: 13%,
Maleimide: 1.5%,
Aryl imine: 0.5%,
Ethylene-acrylic acid copolymer: 16%,
Nano zine oxide: 1%,
2,6 di tert butyl 4 methyl phenol or Tyox B: 0.5%,
Ethylene bis-fatty acid amides: 0.5%.
Its preparation method comprises, takes by weighing raw material according to the above ratio, puts into high-speed mixer and mixing 15 minutes, puts into the twin screw extruder extruding pelletization after the discharging, and the rotating speed of screw extrusion press is 600 rev/mins, and the screw rod melt temperature is 320 ℃.
Claims (9)
1. low-smoke halogen-free flame retardant PC/ABS alloy is characterized in that this alloy comprises following component and weight percentage:
Polycarbonate (PC): 40-75%,
Acrylonitrile-butadiene-phenylethylene multipolymer (ABS): 10-40%,
Composite flame-retardant agent: 10-15%,
The compound fumicants that falls: 0.2-2%,
Compatilizer: 2-16%,
Low promotor: the 1-6% of being fuming,
Stablizer: 0.1-0.5%,
Lubricant: 0.1-0.6%.
2. low-smoke halogen-free flame retardant PC according to claim 1/ABS alloy, it is characterized in that described composite flame-retardant agent is selected from two or more the compound in powder red phosphorus, microcapsule red phosphorus, encapsulated red phosphorus, red phosphorus master batch, nitrogen flame retardant, phosphoric acid ester fire retardant, phosphor nitrogen combustion inhibitor, organic silicon fibre retardant or the borate.
3. low-smoke halogen-free flame retardant PC according to claim 1/ABS alloy, it is characterized in that the described compound fumicants that falls is selected from ferrocene, ferrocene, organo-siloxane, polyethers, ether silicon graft copolymer, acrylamide, Dicyclopentadiene (DCPD) and closes two or more compound in iron, hydroxylimine hydrochloride, maleimide, aryl imine or the cyclopentadiene iron.
4. low-smoke halogen-free flame retardant PC according to claim 1/ABS alloy, it is characterized in that, described compatilizer is selected from maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride grafted ABS, ethylene-vinyl alcohol copolymer, ethylene-vinyl acetate copolymer, maleic anhydride grafted ethene-vinyl acetate copolymer, the glycidyl methacrylate graft polyethylene, the glycidyl methacrylate graft polypropylene, silane grafted polyethylene, ethylene-acrylic acid copolymer, the mixture of one or more in maleic anhydride graft styrene-butadiene-styrene multipolymer or the ethylene-acrylate copolymer.
5. low-smoke halogen-free flame retardant PC according to claim 1/ABS alloy, it is characterized in that the described low promotor of being fuming is selected from one or more the mixture in nano silicon, nano zine oxide, nano titanium oxide, nano-aluminium oxide, yttrium oxide, yttrium europium oxide, europium sesquioxide, lanthanum trioxide, terbium sesquioxide, Samarium trioxide or the Neodymium trioxide.
6. low-smoke halogen-free flame retardant PC according to claim 1/ABS alloy, it is characterized in that, described stablizer is selected from three (2, the 4-di-tert-butyl-phenyl) four [β-(3 ' phosphorous acid ester),, 5 '-di-t-butyl-4 '-hydroxy phenyl) propionic acid] pentaerythritol ester, N, [3-(3 for N '-two, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine, 4,4 '-(β, β '-dihydroxyl dipropyl oxygen phenyl) 2, a kind of or several mixture in 2-propane, 2,6 di tert butyl 4 methyl phenol or the Tyox B.
7. low-smoke halogen-free flame retardant PC according to claim 1/ABS alloy is characterized in that, described lubricant is selected from a kind of or several mixture in Zinc Stearate, stearic acid, ethylene bis-fatty acid amides, calcium stearate or the white oil.
8. the preparation method of low-smoke halogen-free flame retardant PC as claimed in claim 1/ABS alloy, it is characterized in that, this preparation method is as follows: take by weighing polycarbonate (PC) 40-75% by weight percentage, acrylonitrile-butadiene-phenylethylene multipolymer (ABS) 10-40%, composite flame-retardant agent 10-15%, the compound fumicants 0.2-2% that falls, compatilizer 2-16%, the low promotor 1-6% of being fuming, stablizer 0.1-0.5%, lubricant 0.1-0.6% put into the homogenizer mixing 1-15 minute, put into the screw extrusion press extruding pelletization after the discharging.
9. the preparation method of low-smoke halogen-free flame retardant PC according to claim 8/ABS alloy, it is characterized in that, the rotating speed of described homogenizer is 1200-9000 rev/min, and the rotating speed of screw extrusion press is 90-600 rev/min, and extruder temperature is 270-330 ℃.
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