CN101565536A - Flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature - Google Patents
Flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature Download PDFInfo
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- CN101565536A CN101565536A CNA2009100274922A CN200910027492A CN101565536A CN 101565536 A CN101565536 A CN 101565536A CN A2009100274922 A CNA2009100274922 A CN A2009100274922A CN 200910027492 A CN200910027492 A CN 200910027492A CN 101565536 A CN101565536 A CN 101565536A
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Abstract
The invention discloses a flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature, which consists of polybutylece terephthalate, a synergistic resin with high GWIT, a flame retardant, a flame-retardant synergistic agent, an inorganic filler, a toughener, a main antioxidant, an auxiliary antioxidant, an anti-dripping agent, and glass fiber. The composition has good flame-retardant effect and fireproof performance, and high glow wire ignition temperature.
Description
Technical field:
The present invention relates to a kind of polymeric material field, is a kind of resin combination.
Background technology:
PBT (enhancing, modified PBT) is mainly used in fields such as automobile, electronic apparatus, mechanical industry.The component parts that wherein is used for electronic apparatus industry mainly contains the deflection skeleton of televisor, output transformer skeleton, switch connector, refrigerator, motor for washer end cap etc.Some components and parts in these electronic products can cause local superheating and may cause burning in reasons such as loose contact, overload or short circuits, jeopardize the safe operation of total system.Prevent trouble before it happens, the ignition hazard of the parts in the electric equipment products, part and element must drop to certain degree, especially 09 year all white domestic appliances industry all proposes, the glowing filament ignition temperature of employed material (Glow-wireignitability test, GWIT) value must reach three thickness (3mm, 1.5mm, 0.75mm) all will be more than 750 ℃, this strengthens the flame-retardant PBT system to the bromine system that is most widely used at present and has proposed brand-new requirement.
Concerning strengthening flame-retardant PBT, open source information show nitrogen phosphorus series non-halogen flame-retardant reinforced PBT only 3mm thickness can reach 750 ℃ requirement, can't satisfy three thickness (3mm, 1.5mm 0.75mm) all will be in the requirement more than 750 ℃; And be the flame-retardant reinforced PBT system for the bromine that is most widely used at present, under the situation that adds the capacity fire retardant, three thickness (3mm, 1.5mm, 0.75mm) bromine be that the GWIT of flame-retardant reinforced PBT only reaches 675 ℃, 650 ℃, 625 ℃, and require gap very far away.Therefore, to be widely used in the bromine of high glowing filament ignition temperature of white domestic appliances industry be that flame-retardant enhanced PBT material is the task of top priority in exploitation.
Summary of the invention:
The object of the present invention is to provide a kind of have good flame-retardant effect and fire resistance, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination that glowing filament ignition temperature is high.
Technical solution of the present invention is:
A kind of high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination is characterized in that: calculate by weight, be made up of following component:
Polybutylene terephthalate 50-100
High GWIT synergistic resin 0-50
Fire retardant 10-30
Fire retarding synergist 5-15
Mineral filler 0-20
Toughner 0-10
Primary antioxidant 0-0.5
Auxiliary antioxidant 0-0.5
Antidrip agent 0-0.5
Glass fibre 40-80.
The viscosity of described polybutylene terephthalate is 0.6-1.3dl/g.
Described high GWIT synergistic resin is polymeric amide, Poly(Trimethylene Terephthalate), polyethylene terephthalate, polycarbonate or polyphenylene oxide resin.
Described fire retardant is decabromodiphynly oxide, eight bromo ether, hexabromocyclododecane, tetrabromo-bisphenol, brominated epoxy resin or TDE; Described fire retarding synergist is the oxide compound or the stibnate of antimony.
Described mineral filler is magnesium hydroxide, aluminium hydroxide or zinc borate.
Described toughner is polyolefin elastomer POE, ethylene-propylene acid butyl ester 3135, ethylene-ethyl acrylate copolymer EEA, methyl methacrylate-butadiene-styrene MBS, ethylene-methyl acrylate-glycidyl methacrylate random terpolymer AX8900 or thermoplastic elastomer TPR.
Described primary antioxidant is 2,6-di-t-butyl-4-cresols, 3,5-di-tert-butyl-hydroxy phenyl propionic acid stearyl alcohol ester, 4 ' 4-thiobis (6-tert-butyl o cresols), 2 ' 2 '-methylene-bis (4-methyl-6-tert butyl phenol) or four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Described auxiliary antioxidant is thio-2 acid 2 stearyl ester, Tyox B, tricresyl phosphite (2,4-di-tert-butyl phenolic ester) or triphenyl phosphite.
Described oxidation inhibitor also can be B215, B225, B900, JC1215, JC1225 etc. for having the compound of primary antioxidant and auxiliary antioxidant effect simultaneously.
Described Antidrip agent is a tetrafluoroethylene.
Described glass fibre is the glass fibre of handling by interface modifier.
The present invention has good flame-retardant effect and fire resistance, glowing filament ignition temperature is high.
The invention will be further described below in conjunction with embodiment.
Embodiment:
Each raw material weight umber sees Table 1
Comparative Examples 1
100 parts of polybutylene terephthalates (PBT) were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist antimonous oxides, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
Embodiment 1
85 parts of polybutylene terephthalates (PBT) and 15 parts high GWIT synergistic resins were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist antimonous oxides, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
Embodiment 2
70 parts of polybutylene terephthalates (PBT) and 30 parts high GWIT synergistic resins were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist antimonous oxides, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
Embodiment 3
55 parts of polybutylene terephthalates (PBT) and 45 parts high GWIT synergistic resins were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist antimonous oxides, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
Embodiment 4
70 parts of polybutylene terephthalates (PBT) and 30 parts high GWIT synergistic resins were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist stibnates, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
Embodiment 5
70 parts of polybutylene terephthalates (PBT) and 30 parts high GWIT synergistic resins were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist ANTIMONY TRIOXIDE SB 203 99.8 PCT, 10 parts of mineral fillers, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
Embodiment 6
70 parts of polybutylene terephthalates (PBT) and 30 parts high GWIT synergistic resins were descended dry 2-3 hour at 120 ℃, the control moisture content<below 0.05%, high-speed mixer and mixing 3min; Subsequently 26 parts of fire retardants, 10 parts of fire retarding synergist stibnates, 10 parts of mineral fillers, 2 parts of toughner AX8900,0.3 part of primary antioxidant AT10,0.3 part of auxiliary antioxidant AT168,0.4 part of Antidrip agent tetrafluoroethylene are added the high mixer high speed and mix 5min, enter twin screw extruder plasticizing, fusion from the metering feeding device, the alkali free glass fibre that in twin screw extruder, adds simultaneously 30% weight, through routine extrude, tie rod, cooling, pelletizing, all mix, packing.Pellet prepares test bars by injection moulding machine then at 120 ℃ of dry 4h of air dry oven.
The composition properties test result sees Table 2 in embodiment and the Comparative Examples.
The raw material weight umber proportioning of table 1 embodiment 1~6, Comparative Examples 1
Composition properties test result in table 2 embodiment and the Comparative Examples
Claims (9)
1, a kind of high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination is characterized in that: calculate by weight, be made up of following component:
Polybutylene terephthalate 50-100
High GWIT synergistic resin 0-50
Fire retardant 10-30
Fire retarding synergist 5-15
Mineral filler 0-20
Toughner 0-10
Primary antioxidant 0-0.5
Auxiliary antioxidant 0-0.5
Antidrip agent 0-0.5
Glass fibre 40-80.
2, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1, it is characterized in that: the viscosity of described polybutylene terephthalate is 0.6-1.3dl/g.
3, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2 is characterized in that: described high GWIT synergistic resin is polymeric amide, Poly(Trimethylene Terephthalate), polyethylene terephthalate, polycarbonate or polyphenylene oxide resin.
4, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2, it is characterized in that: described fire retardant is decabromodiphynly oxide, eight bromo ether, hexabromocyclododecane, tetrabromo-bisphenol, brominated epoxy resin or TDE; Described fire retarding synergist is the oxide compound or the stibnate of antimony.
5, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2, it is characterized in that: described mineral filler is magnesium hydroxide, aluminium hydroxide or zinc borate.
6, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2 is characterized in that: described toughner is polyolefin elastomer POE, ethylene-propylene acid butyl ester 3135, ethylene-ethyl acrylate copolymer EEA, methyl methacrylate-butadiene-styrene MBS, ethylene-methyl acrylate-glycidyl methacrylate random terpolymer AX8900 or thermoplastic elastomer TPR.
7, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2, it is characterized in that: described primary antioxidant is 2,6-di-t-butyl-4-cresols, 3,5-di-tert-butyl-hydroxy phenyl propionic acid stearyl alcohol ester, 4 ' 4-thiobis (6-tert-butyl o cresols), 2 ' 2 '-methylene-bis (4-methyl-6-tert butyl phenol) or four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Described auxiliary antioxidant is thio-2 acid 2 stearyl ester, Tyox B, tricresyl phosphite (2,4-di-tert-butyl phenolic ester) or triphenyl phosphite.
8, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2, it is characterized in that: described Antidrip agent is a tetrafluoroethylene.
9, high glowing filament ignition temperature flame-retardant polybutylene terephthalate resin combination according to claim 1 and 2 is characterized in that: the glass fibre of described glass fibre for handling by interface modifier.
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CN101817972A (en) * | 2010-04-28 | 2010-09-01 | 深圳市科聚新材料有限公司 | Flame-retardant enhanced PBT material and preparation method thereof |
CN101838446A (en) * | 2010-05-21 | 2010-09-22 | 浙江俊尔新材料有限公司 | Flame-retardant enhanced polybutylece terephthalate (PBT) material and preparation method thereof |
CN101885903A (en) * | 2010-07-13 | 2010-11-17 | 上海梵和聚合材料有限公司 | Fire-retardant reinforced PBT composite material with high glow wire temperature and production process thereof |
CN101928449A (en) * | 2010-09-06 | 2010-12-29 | 上海俊尔新材料有限公司 | High glowing filament ignition temperature inflaming retarding reinforced poly(butylene terephthalate) |
CN102061076A (en) * | 2010-12-10 | 2011-05-18 | 深圳市富恒塑胶新材料有限公司 | Super-tough PC (polycarbonate)/PBT (Polybutylece Terephthalate)/PET (Polyethylene Glycol Terephthalate) alloy and preparation method thereof |
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CN101851405B (en) * | 2010-05-13 | 2012-05-30 | 余姚市凡伟工程塑料有限公司 | High-CTI high-GWIT environment-friendly flame-retardant reinforced PBT engineering plastic for unattended electric appliance and preparation method thereof |
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