CN105440597B - A kind of high-glowing-filament-temperature flame-retardancy reinforced PBT composite and preparation method thereof - Google Patents
A kind of high-glowing-filament-temperature flame-retardancy reinforced PBT composite and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of polymer composite and preparation method, more particularly, to a kind of high-glowing-filament-temperature flame-retardancy reinforced PBT composite and preparation method thereof.Described high-glowing-filament-temperature flame-retardancy reinforced PBT composite includes following component：50~60wt% of polybutylene terephthalate (PBT), composite fire retardant 20wt%, 0~10wt% of glass fibre 20wt% and grafting compatilizer.Present invention selection BACN TDCP (tricresyl phosphate (β, β ' two chloro isopropyl) ester) and inorganic fire-retarded filler attapulgite are compounded, and obtain preferable halogen free flame-retardant reinforced PBT system.High-glowing-filament-temperature flame-retardancy reinforced PBT composite provided by the present invention also has preferable mechanical property while with preferable fire resistance；But also with highest glowing filament value, can be tested by 850 DEG C of glowing filaments.
Description
Technical field
The present invention relates to a kind of polymer composite and preparation method, strengthen more particularly, to a kind of high-glowing-filament-temperature flame-retardancy
Type PBT composite and preparation method thereof.
Background technology
Polybutylene terephthalate (PBT) (PBT) is a kind of thermoplastic semi-crystalline's type saturated resin, higher, resistance to intensity
Hot, ageing-resistant and dimensionally stable, and with advantages such as excellent electrical insulating property, chemically-resistant and corrosion resistances.But PBT is equally existed
Shortcoming, its combustibility brings many potential fire crises.Because PBT limited oxygen index (LOI) is very low, it is usually
20%~22%, exposure in atmosphere, easily burning, it can be seen from PBT structure, its combustion decomposition, which can be discharged, substantial amounts of to be had
Poisonous gas and harmful substance, and occur the melting drip phenomenon of burner body often, the low of combustible will promote entering for the intensity of a fire
One step expands and accelerates the release of harmful substance.This not only endangers environment, and the security of the lives and property of people is constituted
Grave danger, therefore its physical property need to be modified.
For a long time, fire retardants all PBT is the halogenated flame retardant continued to use, but halogenated flame retardant is fire-retardant while
Substantial amounts of hydrogen halides smog is discharged again, it is highly corrosive, easily make one to suffocate and have a strong impact on immune system and the regeneration of people
System.In view of the various disadvantages of halogenated flame retardant, " waste electronic electric equipment is instructed two instructions of European Union 2003 year 2 month
(WEEE) " and " in electronic and electrical equipment disable Hazardous Substances Directive (ROHS) " promulgation, the use to halogenated flame retardant carries out
Limitation.
CN200910197585.X discloses a kind of High glow wire environment-friendlyflame-retardant flame-retardant enhancing PBT composite and its preparation side
Method, the composite includes following components and content (wt%)：Polybutylene terephthalate (PBT) 46-66, compound flame redundant
10-20, antimony oxide 3-12, glass fibre 15-30, toughener 2-8, antioxidant 0.1-1, lubrication dispersing agent 0.1-1, wherein
Described compound flame redundant is that brominated Polystyrene compares 8 with commercially available fire retardant OP1312 according to weight：3 compoundings are formed.Will be upper
State raw material and be put into discharging after high-speed mixer and mixing 2-5min, obtain mixture, then control the processing temperature of double screw extruder
And screw rod revolution, mixture is placed in double screw extruder extruding pelletization, product is produced.
CN201010273772.4 discloses a kind of high glowing filament ignition temperature flame-retardant enhancing polybutylene terephthalate
Ester, is made up of the raw material of following parts by weight：25~68 parts by weight polybutylene terephthalate (PBT)s, 10~30 parts by weight are fire-retardant
Agent, 2~10 weight portions of synergist, 1~10 parts by weight toughener, 0~1 parts by weight primary antioxidant, 0~1 parts by weight auxiliary antioxygen
Agent and 10~40 parts by weight of glass fiber.Wherein, described fire retardant be TDE, brominated epoxy resin, bromination gather
One or two kinds of in styrene, three (tribromophenoxy) triazines, brominated polycarbonate, polyacrylic acid pentabromo- benzyl ester.This hair
Bright fire-retardant enhancing polybutylene terephthalate (PBT) has high glowing filament ignition temperature, higher mechanical property and relatively low
Material cost, and preparation method is simple, without special installation, suitable for industrialized production.
The bromide fire retardants such as brominated Polystyrene have been used in above-mentioned composite, but bromide fire retardant is that halogen system is fire-retardant
One kind of agent, it still falls within halogenated flame retardant.Therefore there are still above-mentioned drawback, such as discharge again largely fire-retardant while
Hydrogen halides smog, it is highly corrosive, easily make one to suffocate and have a strong impact on the immune system and regenerative system of people.
The characteristics of when being burnt according to PBT：It is readily burned, it is difficult into charcoal, and it is larger to release smoke during burning, continuously melts
Drippage makes flame further spread.The requirement for meeting fire safety is searched out, it is general that glass is increased using additive flame retardant
Strong PBT carries out flame-retardant modified.
Inorganic combustion inhibitor is broadly divided into phosphorus flame retardant, silicon-series five-retardant, inorganic filler class and nanosizing microencapsulation
It is fire-retardant etc..Expansion type flame retardant is a kind of novel halogen-free flame-retardant agent grown up 1970s, is had to high polymer material
There is good fire resistance.But it is relatively low that expansion type flame retardant polypropylene flame redardant still suffers from flame retarding efficiency, addition is larger and material
The problems such as mechanical property is not high, have impact on the application of flame-retardant PBT.
In view of this, it is special to propose the present invention.
The content of the invention
It is an object of the invention to provide a kind of High glow wire halogen-free flame retardant strengthen PBT composite, make its with compared with
Still there is preferable mechanical property while the fire resistance got well.
The second object of the present invention is that the High glow wire halogen-free flame retardant described in offer strengthens the preparation side of PBT composite
Method, this method technique is simple, workable, is suitable for industrialized large-scaled production.
To realize the first object of the present invention, the present invention is adopted the following technical scheme that：
A kind of high-glowing-filament-temperature flame-retardancy reinforced PBT composite, wherein, described high-glowing-filament-temperature flame-retardancy reinforced PBT is answered
Condensation material includes following component：
Wherein, described composite fire retardant is tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight
Than (6~14)：(14~6) compounding is formed.
For a long time, fire retardants all PBT is the halogenated flame retardant continued to use, but halogenated flame retardant is fire-retardant while
Substantial amounts of hydrogen halides smog is discharged again, it is highly corrosive, easily make one to suffocate and have a strong impact on immune system and the regeneration of people
System.Present invention selection BACN TDCP (tricresyl phosphate (β, β '-two chloro isopropyl) ester) and inorganic fire-retarded filler concave convex rod
Soil is compounded, and obtains preferable halogen free flame-retardant reinforced PBT system.
It is preferred that, described high-glowing-filament-temperature flame-retardancy reinforced PBT composite includes following component：
It is further preferred that described high-glowing-filament-temperature flame-retardancy reinforced PBT composite includes following component：
Described composite fire retardant is that tricresyl phosphate (β, β '-two chloro isopropyl) ester compares 12 with attapulgite according to weight：8
Compounding is formed.
In composite fire retardant provided by the present invention, tricresyl phosphate (β, β '-two chloro isopropyl) ester (TDCP) and bumps
Rod soil is using flame retardant effect and power of the different proportioning compoundings to polybutylene terephthalate (PBT) (PBT) composite of gained
Learning performance has large effect.The present invention has investigated tricresyl phosphate (β, β '-two chloro isopropyl) ester with attapulgite with different ratio
The obtained flame retardant effect of PBT composite and mechanical property are compounded, is as a result shown, and single use tricresyl phosphate (β, β '-dichloro is different
Propyl group) ester and attapulgite is used alone, flame retardant effect is undesirable, and mechanical properties decrease is also more serious, and by two kinds
It is fire-retardant with regard to being compounded when, with the increase of tricresyl phosphate (β, β '-two chloro isopropyl) ester content, its Izod notched impact strength
First increase the trend reduced afterwards with fire resistance.When tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite mass ratio are distinguished
For 12%：When 8%, flame retardant effect and mechanical property are optimal.
Grafting compatilizer of the present invention is PB-g-GMA.
In order to which, without larger its mechanical property of reduction, the present invention adds grafting while enhancing PBT fire resistances are ensured
Compatilizer PB-g-GMA, introduces polarity or functional side group on strand, so not only contribute to improve high polymer material with
Interface affinity between inorganic filler, moreover it is possible to improve the mechanical property of flame-retardant system.
PB-g-GMA of the present invention is obtained by GMA grafting PB.
Specifically, described PB-g-GMA is to be total to by GMA grafting PB according to DCP/GMA/PB=2/8/100 ratios
It is mixed to extrude what is obtained.
To realize the second object of the present invention, the present invention is adopted the following technical scheme that：
A kind of preparation method of high-glowing-filament-temperature flame-retardancy reinforced PBT composite of the present invention, this method is：
By 50~60wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and 0~10wt% graft phases
Hold agent to be well mixed, put into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.
The present invention is using polybutylene terephthalate (PBT), composite fire retardant, grafting compatilizer and glass fibre as preparation
The composition of high-glowing-filament-temperature flame-retardancy reinforced PBT composite.Wherein, composite fire retardant by tricresyl phosphate (β, β '-dichloro isopropyl
Base) ester and attapulgite compounded, obtain preferable halogen free flame-retardant reinforced PBT system, effectively raise enhancing PBT's
Anti-flammability and mechanical property.PBT can be made to obtain highest glowing filament value simultaneously, can be tested by 850 DEG C of glowing filaments.
Further, described preparation method also includes the preparation of grafting compatilizer.
Specifically, described grafting compatilizer is prepared as：GMA is grafted PB according to DCP/GMA/PB=2/8/100
Ratio carries out blending extrusion.
It is preferred that, engine speed is 42~44 revs/min during extrusion, and screw speed is 28~30 revs/min.
It is further preferred that the temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature area
Temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C.
Compared with prior art, the invention has the advantages that：
(1) high-glowing-filament-temperature flame-retardancy reinforced PBT composite provided by the present invention is halogen free flame-retardant reinforced PBT composite wood
Material, overcomes halogenated flame retardant and discharges substantial amounts of hydrogen halides smog again fire-retardant while, highly corrosive, easily makes one to stop up
Cease and have a strong impact on the immune system of people and the defect of regenerative system；
(2) high-glowing-filament-temperature flame-retardancy reinforced PBT composite provided by the present invention is with preferable fire resistance
Also there is preferable mechanical property simultaneously；
(3) high-glowing-filament-temperature flame-retardancy reinforced PBT composite provided by the present invention has highest glowing filament value, can be with
Tested by 850 DEG C of glowing filaments.
Embodiment
Be below the embodiment of the present invention, described embodiment be in order to further describe the present invention, rather than
The limitation present invention.
Embodiment 1
Raw material number is matched：
Polybutylene terephthalate (PBT) 60wt%
Composite fire retardant 20wt%
Glass fibre 20wt%
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
12wt%：8wt% compoundings are formed.
Preparation method：
60wt% polybutylene terephthalate (PBT)s and 20wt% composite fire retardants are well mixed, input twin-screw is squeezed
Go out machine, while 20wt% glass fibres are put into by the spout of double screw extruder, melted, mixed by double screw extruder
Refining, extrusion, cooling, dry and pelletizing, are made described high-glowing-filament-temperature flame-retardancy reinforced PBT composite.
Embodiment 2
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
12wt%：8wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：It is dissolved in after DCP is weighed in proportion in GMA and acetone mixture, waits to be completely dissolved
Uniformly mixed with homogenizer with PB afterwards, use double screw extruder extruding pelletization, obtain, wherein DCP, GMA and PB quality
Than for 2:8:100.
The preparation of PBT composite：By 58wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
2wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.
Embodiment 3
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
12wt%：8wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 2.
The preparation of PBT composite：By 56wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
4wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.
Embodiment 4
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
12wt%：8wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 2.
The preparation of PBT composite：By 54wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
6wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.The temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature area
Temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C.During extrusion
Engine speed is 42~44 revs/min, and screw speed is 28~30 revs/min.
Embodiment 5
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
12wt%：8wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 1.
The preparation of PBT composite：By 52wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
8wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.
Embodiment 6
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
12wt%：8wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 1.
The preparation of PBT composite：By 50wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
10wt% is well mixed, and double screw extruder is put into, while the spout that 20wt% glass fibres are passed through into double screw extruder
Input, is melted by double screw extruder, kneaded, extruded, cooled down, dried and pelletizing, and the high-glowing-filament-temperature flame-retardancy for being made described increases
Strong type PBT composite.The temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature
Area's temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C.Extrusion
When engine speed be 42~44 revs/min, screw speed be 28~30 revs/min.
Embodiment 7
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
6wt%：14wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 2.
The preparation of PBT composite：By 58wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
2wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.The temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature area
Temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C.During extrusion
Engine speed is 42~44 revs/min, and screw speed is 28~30 revs/min.
Embodiment 8
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
8wt%：12wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 1.
The preparation of PBT composite：By 56wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
4wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.The temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature area
Temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C.During extrusion
Engine speed is 42~44 revs/min, and screw speed is 28~30 revs/min.
Embodiment 9
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
10wt%：10wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 2.
The preparation of PBT composite：By 54wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
6wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.The temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature area
Temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C.During extrusion
Engine speed is 42~44 revs/min, and screw speed is 28~30 revs/min.
Embodiment 10
Raw material number is matched：
Wherein, composite fire retardant by tricresyl phosphate (β, β '-two chloro isopropyl) ester and attapulgite according to weight ratio
14wt%：6wt% compoundings are formed；Described grafting compatilizer is PB-g-GMA.
Preparation method：
It is grafted the preparation of compatilizer：Be the same as Example 2.
The preparation of PBT composite：By 52wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and
8wt% is well mixed, and puts into double screw extruder, while 20wt% glass fibres are thrown by the spout of double screw extruder
Enter, melted, kneaded by double screw extruder, extruded, cooled down, dried and pelletizing, described high-glowing-filament-temperature flame-retardancy enhancing is made
Type PBT composite.Engine speed is 42~44 revs/min during extrusion, and screw speed is 28~30 revs/min.
Test example 1
This test example has investigated tricresyl phosphate (β, β '-two chloro isopropyl) ester with attapulgite with being combined that different ratio is obtained
Influence of the type fire retardant to last obtained PBT composite performance.
Table 1 is the component and shared mass percent of each sample, and wherein PBT is 60-80%, and glass is 20%, compound
Fire retardant is compounded by TDCP and attapulgite, and totally 20%.
Table 1
Preparation method is：
Melted, mixed by double screw extruder after composite fire retardant is sufficiently mixed with PBT resin under high velocity agitation
Refining, extrusion, cooling, dry, pelletizing；Three section chief's glasses are added by the spout of extruder simultaneously；Each subregion of barrel during extrusion
Temperature be：First humidity province temperature is 215~230 DEG C；Second temperature area temperature is 220~240 DEG C；3rd humidity province temperature
For 230~245 DEG C；4th humidity province temperature is 230~245 DEG C；Head temperature is 235~250 DEG C；Engine speed：38~40
Rev/min, 28-30 revs/min of screw speed.
Performance to each sample detects that testing result see the table below 2：
Table 2
It can be seen that by the result of the test of table 2：Single use TDCP and exclusive use attapulgite, flame retardant effect are paid no attention to
Think, and mechanical properties decrease is also more serious, and by two kinds it is fire-retardant with regard to being compounded when, with tricresyl phosphate (β, β '-dichloro isopropyl
Base) ester content increase, its Izod notched impact strength and fire resistance first increase the trend reduced afterwards.When tricresyl phosphate (β,
The chloro isopropyls of β '-two) ester and attapulgite mass ratio be respectively 12%：When 8%, flame retardant effect and mechanical property are optimal.
Test example 3
This test example has investigated media compatibility agent PB-g-GMA Different adding amounts to obtained PBT composite performance
Influence.
Table 3 is sample 13-17 component and shared mass percent, and wherein PBT is 50-60%, and glass is 20%, is combined
Type fire retardant is compounded by TDCP and attapulgite, and totally 20%, PB-g-GMA is 0-10%.
Table 3
Preparation method is：
It is grafted the preparation of compatilizer：It is dissolved in after DCP is weighed in proportion in GMA and acetone mixture, waits to be completely dissolved
Uniformly mixed with homogenizer with PB afterwards, use double screw extruder extruding pelletization, obtain, wherein DCP, GMA and PB quality
Than for 2:8:100.
The preparation of PBT composite：Composite fire retardant, grafting compatilizer is abundant with PBT resin under high velocity agitation
Melted, kneaded by double screw extruder after mixing, extruded, cooled down, dried, pelletizing；Added simultaneously by the spout of extruder
Enter three section chief's glasses；The temperature of each subregion of barrel is during extrusion：First humidity province temperature is 215~230 DEG C；Second temperature area temperature
Spend for 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；4th humidity province temperature is 230~245 DEG C；Head temperature
For 235~250 DEG C；Engine speed：42~44 revs/min, 28-30 revs/min of screw speed.
Performance to each sample detects that testing result see the table below 4：
Table 4
Interpretation of result：850 DEG C of glowing filament performance tests are carried out to above-mentioned each sample.Added it can be seen from the data of table 4 few
The PB-g-GMA of amount is to the lifting of PBT combination property and little, and when addition reaches 4wt%, the combination property of system has
Larger lifting.As the increase mechanical property and fire resistance of addition occur in that the trend for first being lifted and being reduced afterwards, in PB-
Mechanical property, fire resistance, glowing filament performance test are optimal when g-GMA addition is 4wt%.
Claims (11)
1. a kind of high-glowing-filament-temperature flame-retardancy reinforced PBT composite, it is characterised in that described high-glowing-filament-temperature flame-retardancy is enhanced
PBT composite includes following component：
Wherein, described composite fire retardant is that tricresyl phosphate (β, β '-two chloro isopropyl) ester compares 12 with attapulgite according to weight：
8 compoundings are formed.
2. high-glowing-filament-temperature flame-retardancy reinforced PBT composite according to claim 1, it is characterised in that described Gao Zhuo
Heated filament flame-retardant reinforced PBT composite includes following component：
3. high-glowing-filament-temperature flame-retardancy reinforced PBT composite according to claim 2, it is characterised in that described Gao Zhuo
Heated filament flame-retardant reinforced PBT composite includes following component：
4. the high-glowing-filament-temperature flame-retardancy reinforced PBT composite according to claim 1 or 2 or 3, it is characterised in that described
Grafting compatilizer be PB-g-GMA.
5. high-glowing-filament-temperature flame-retardancy reinforced PBT composite according to claim 4, it is characterised in that described PB-g-
GMA is obtained by GMA grafting PB.
6. high-glowing-filament-temperature flame-retardancy reinforced PBT composite according to claim 5, it is characterised in that described PB-g-
GMA is grafted PB by GMA and obtained according to DCP/GMA/PB=2/8/100 ratios progress blending extrusion.
7. a kind of preparation method of the high-glowing-filament-temperature flame-retardancy reinforced PBT composite described in claim 1 to 6 any one,
Characterized in that, described preparation method is：
50~60wt% polybutylene terephthalate (PBT)s, 20wt% composite fire retardants and 0~10wt% are grafted compatilizer
It is well mixed, double screw extruder is put into, while 20wt% glass fibres are put into by the spout of double screw extruder, is led to
Double screw extruder melting, mixing, extrusion, cooling, dry and pelletizing are crossed, described high-glowing-filament-temperature flame-retardancy reinforced PBT is made
Composite.
8. preparation method according to claim 7, it is characterised in that described preparation method also includes grafting compatilizer
Prepare.
9. preparation method according to claim 8, it is characterised in that described grafting compatilizer is prepared as：GMA is connect
Branch PB carries out blending extrusion according to DCP/GMA/PB=2/8/100 ratios.
10. the preparation method according to claim 7-8 any one, it is characterised in that during extrusion engine speed be 42~
44 revs/min, screw speed is 28~30 revs/min.
11. preparation method according to claim 10, it is characterised in that the temperature of each subregion of barrel is during extrusion：First
Humidity province temperature is 215~230 DEG C；Second temperature area temperature is 220~240 DEG C；3rd humidity province temperature is 230~245 DEG C；
4th humidity province temperature is 230~245 DEG C.
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| TWI236488B (en) * | 2004-03-02 | 2005-07-21 | Taiwan Textile Res Inst | Flame retarded composition and a polymer having thereof |
| CN101928449B (en) * | 2010-09-06 | 2012-07-25 | 上海俊尔新材料有限公司 | High glowing filament ignition temperature inflaming retarding reinforced poly(butylene terephthalate) |
| CN102010585B (en) * | 2010-11-16 | 2012-04-04 | 淮阴师范学院 | Preparation method of efficient and environment-friendly composite fire retardant |
| CN103709614A (en) * | 2012-09-29 | 2014-04-09 | 青岛欣展塑胶有限公司 | PBT flame-retardant master batch |
| CN104045985B (en) * | 2014-06-25 | 2016-04-20 | 南京理工大学 | A kind of RDP clad nano attapulgite prepares flame-proof polylactic acid matrix material |
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