CN105440598A - PBT flame-retardant material with ultrahigh stability, and preparation method and applications thereof - Google Patents
PBT flame-retardant material with ultrahigh stability, and preparation method and applications thereof Download PDFInfo
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- CN105440598A CN105440598A CN201510957193.4A CN201510957193A CN105440598A CN 105440598 A CN105440598 A CN 105440598A CN 201510957193 A CN201510957193 A CN 201510957193A CN 105440598 A CN105440598 A CN 105440598A
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- pbt
- retardant material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
The invention provides a PBT flame-retardant material with ultrahigh stability, and a preparation method and applications thereof. The PBT flame-retardant material is prepared from 10 to 25% of red phosphorus master batch, 2 to 10% of antimonous oxide, 8 to 25% of polytetrafluoroethylene, and 40 to 80% of nylon. In the preparation method, a small amount of antimonous oxide is added into the nylon base material, certain amounts of red phosphorus master batch and polytetrafluoroethylene are added for blend doping, and the PBT flame-retardant material is obtained via extrusion; the PBT flame-retardant material is provided with high stability because of interaction and mutual coordination of the ingredients; glow wire temperature of the PBT flame-retardant material is as high as 950 DEG C, and CTI value is as high as 250V; the PBT flame-retardant material possesses high melt index, excellent mechanical properties, toughness, and flame resistant, is convenient to process, and can be widely applied to the fields such as attaching plug, microswitch, capacitor, electronic products, medical treatment, industry and mining, military equipment, petrochemical engineering, train, automobile, and airplane; and the flame resistance is capable of reaching V0 grade.
Description
Technical field
The invention belongs to fire retardant material field, relate to a kind of PBT fire retardant material and its preparation method and application, particularly relate to a kind of ultrastability PBT fire retardant material and its preparation method and application.
Background technology
Polybutylene terephthalate (being called for short PBT), being thermoplastic polyester, is developed by Celanese company of the U.S. the last century initial stage seventies.PBT has extraordinary and hot, weathering resistance, chemical-resistant, and has the advantages such as excellent electric properties, water-absorbent is little, surface is good, is widely used in electric, the industry such as automobile, machinery, household electrical appliance, especially electric industry.
Normally, electric industry has flame-retardancy requirements mostly to material, and the omnidistance nonflammable temperature of general requirement glowing filament reaches 750 DEG C.Early stage PBT material is by adding a large amount of fire retardant modifications, and the omnidistance nonflammable temperature of glowing filament can reach 750 DEG C.Along with the development of society, electronic product more and more trends towards high-end development, and the standard of European electronic product to PBT material journey turn improves a step, rises to 850 DEG C to the nonflammable temperature of glowing filament by original 750 DEG C.But improving one's methods traditionally, the PBT material reaching 750 DEG C in the nonflammable temperature of glowing filament continues add fire retardant, although the nonflammable temperature of the glowing filament of PBT material can be made to reach 850 DEG C, the mechanical property of material can completely lose, and does not have actual application value.Such as, existing use brominated triazine, antimonous oxide, MCA fire retardant (Chinese name: melamine cyanurate compound), improve the flame retardant properties of PBT material, but the non-constant of PBT material mechanical property obtained.And because fire retardant addition is large, pulvis is untreated directly to add, complete processing is caused to be difficult to control.In addition, fire retardant duplicate kind is few, and flame retarding efficiency, glowing filament efficiency are all low, and therefore addition is large, and the cost intensive of brominated triazine, cause cost higher, be not suitable for practical application.
Therefore, preparing the PBT material with more high glow wire temperature and flame retardant resistance is in the art the problem that this area needs solution badly.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of PBT fire retardant material and its preparation method and application, a kind of ultrastability PBT fire retardant material and its preparation method and application is provided time especially.
For reaching this object, the present invention by the following technical solutions:
On the one hand, the invention provides a kind of PBT fire retardant material, described PBT fire retardant material is prepared by the component that mass percentage is following:
The present invention by adding a small amount of antimonous oxide in PBT substrate, and add a certain amount of red phosphor masterbatch and tetrafluoroethylene to improve the performance of PBT material, cooperatively interact between each composition, coordinative role makes PBT material have high stability, make it have high glow wire temperature, high CTI value and excellent flame retardant properties, and with low cost, solve and add a large amount of antimonous oxide in some fire retardant materials and make with high costs and preparation process cause the problem of human health damage due to antimonous oxide fine powder.
In the raw material of PBT fire retardant material of the present invention, the consumption of red phosphor masterbatch is 10-25%, such as 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23% or 24%.
In the raw material of PBT fire retardant material of the present invention, the consumption of antimonous oxide is 2-10%, such as 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9% or 9.5%.
In the raw material of PBT fire retardant material of the present invention, the consumption of tetrafluoroethylene is 8-25%, such as 8.5%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23% or 24%.
In the raw material of PBT fire retardant material of the present invention, the consumption of PBT is 40-80%, such as 41%, 43%, 45%, 47%, 49%, 50%, 52%, 54%, 56%, 58%, 60%, 62%, 65%, 67%, 70%, 72%, 74%, 76% or 78%.
Preferably, PBT fire retardant material of the present invention is prepared by the component that mass percentage is following:
In the present invention, the polymerization degree of described tetrafluoroethylene is 3 × 10
4~ 8 × 10
4, such as 3 × 10
4, 3.5 × 10
4, 4 × 10
4, 4.5 × 10
4, 5 × 10
4, 5.5 × 10
4, 6 × 10
4, 6.5 × 10
4, 7 × 10
4, 7.5 × 10
4or 8 × 10
4, preferably 5 × 10
4~ 6 × 10
4.
In the present invention, the number-average molecular weight of described tetrafluoroethylene is 1 × 10
7~ 9 × 10
7, such as 1.5 × 10
7, 2 × 10
7, 2.5 × 10
7, 3 × 10
7, 3.5 × 10
7, 4 × 10
7, 4.5 × 10
7, 5 × 10
7, 5.5 × 10
7, 6 × 10
7, 6.5 × 10
7, 7 × 10
7, 7.5 × 10
7, 8 × 10
7or 8.5 × 10
7, preferably 4 × 10
7~ 8 × 10
7.
On the other hand, the invention provides the preparation method of PBT fire retardant material as described in relation to the first aspect, described method is: by blended to red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT doping, then extrudes and obtains described PBT fire retardant material.
In preparation method of the present invention, stir speed (S.S.) during described blended doping is 100-200r/min, such as 105r/min, 110r/min, 115r/min, 120r/min, 125r/min, 130r/min, 135r/min, 140r/min, 145r/min, 150r/min, 155r/min, 160r/min, 165r/min, 170r/min, 175r/min, 180r/min, 185r/min, 190r/min or 195r/min.
Preferably, extrude described in and carry out in twin screw extruder.
Preferably, the preheating temperature in described double-screw extruder screw region is 250-300 DEG C, such as 255 DEG C, 260 DEG C, 265 DEG C, 270 DEG C, 275 DEG C, 280 DEG C, 285 DEG C, 290 DEG C, 295 DEG C or 298 DEG C.
Preferably, the screw speed of described twin screw extruder is 250r/min-400r/min, such as 255r/min, 260r/min, 265r/min, 270r/min, 275r/min, 280r/min, 290r/min, 300r/min, 310r/min, 320r/min, 330r/min, 340r/min, 350r/min, 360r/min, 370r/min, 380r/min or 390r/min.
As the preferred technical solution of the present invention, the preparation method of PBT fire retardant material of the present invention is: by red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 100-200r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 250-300 DEG C, screw speed is 250r/min-400r/min, obtains described PBT fire retardant material.
On the other hand, the invention provides the application of PBT fire retardant material in electronic apparatus material as described in relation to the first aspect.
Relative to prior art, the present invention has following beneficial effect:
PBT fire retardant material of the present invention is by 15-25% red phosphor masterbatch, 2-10% antimonous oxide, 8-25% tetrafluoroethylene and 40-70%PBT prepare and obtain, the present invention by adding a small amount of antimonous oxide in PBT substrate, and add a certain amount of red phosphor masterbatch and polytetrafluoroethylblended blended doping, extrude and obtain described PBT fire retardant material, cooperatively interact between each composition, coordinative role makes this material have high stability, its glow wire temperature is up to 950 DEG C, CTI value can reach 250V, and there is high melting means, good mechanical property, good toughness, easy processing, there is good flame retardant resistance, flame retardant resistance can reach V0 level, attaching plug can be widely used in, vernier switch, electrical condenser, electronic product, medical treatment, industrial and mineral, war industry equipment, petrochemical complex, the fields such as train vehicle aircraft.
Embodiment
Technical scheme of the present invention is further illustrated below by embodiment.Those skilled in the art should understand, described embodiment is only help to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
In the present embodiment, following raw material is had to prepare PBT fire retardant material:
Its preparation method is:
By red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 100r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 300 DEG C, and screw speed is 300r/min, obtains described PBT fire retardant material.
Embodiment 2
In the present embodiment, following raw material is had to prepare PBT fire retardant material:
Its preparation method is:
By red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 200r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 250 DEG C, and screw speed is 400r/min, obtains described PBT fire retardant material.
Embodiment 3
In the present embodiment, following raw material is had to prepare PBT fire retardant material:
Its preparation method is:
By red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 150r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 280 DEG C, screw speed is 250r/minr/min, obtains described PBT fire retardant material.
Embodiment 4
In the present embodiment, following raw material is had to prepare PBT fire retardant material:
Its preparation method is:
By red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 200r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 250 DEG C, and screw speed is 400r/min, obtains described PBT fire retardant material.
Embodiment 5
In the present embodiment, following raw material is had to prepare PBT fire retardant material:
Its preparation method is:
By red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 180r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 280 DEG C, and screw speed is 350r/min, obtains described PBT fire retardant material.
Comparative example 1
The difference of this comparative example and embodiment 1 is, prepares PBT fire retardant material by following raw material:
Red phosphor masterbatch 20%
Tetrafluoroethylene 15%
PBT65％
In addition, preparation method is identical with embodiment 1.
Comparative example 2
The difference of this comparative example and embodiment 1 is, prepares PBT fire retardant material by following raw material:
Red phosphor masterbatch 25%
Antimonous oxide 5%
PBT70％
In addition, preparation method is identical with embodiment 1.
Comparative example 3
The difference of this comparative example and embodiment 1 is, prepares PBT fire retardant material by following raw material:
Antimonous oxide 5%
Tetrafluoroethylene 25%
PBT70％
In addition, preparation method is identical with embodiment 1.
Comparative example 4
The difference of this comparative example and embodiment 1 is, prepares PBT fire retardant material by following raw material:
In addition, preparation method is identical with embodiment 1.
Comparative example 5
The difference of this comparative example and embodiment 1 is, prepares PBT fire retardant material by following raw material:
In addition, preparation method is identical with embodiment 1.
The performance of the PBT fire retardant material that embodiment 1-5 and comparative example 1-5 prepares is tested, testing method and test result as shown in table 1.
Table 1
Applicant states, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not namely mean that the present invention must rely on above-mentioned method detailed and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (10)
1. a PBT fire retardant material, is characterized in that, described PBT fire retardant material is prepared by the component that mass percentage is following:
2. PBT fire retardant material according to claim 1, is characterized in that, described PBT fire retardant material is prepared by the component that mass percentage is following:
3. PBT fire retardant material according to claim 1 and 2, is characterized in that, the polymerization degree of described tetrafluoroethylene is 3 × 10
4~ 8 × 10
4; Preferably 5 × 10
4~ 6 × 10
4.
4. the PBT fire retardant material according to any one of claim 1-3, is characterized in that, the number-average molecular weight of described tetrafluoroethylene is 1 × 10
7~ 9 × 10
7, preferably 4 × 10
7~ 8 × 10
7.
5. the preparation method of the PBT fire retardant material according to any one of claim 1-4, is characterized in that, described method is: by blended to red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT doping, then extrudes and obtains described PBT fire retardant material.
6. preparation method according to claim 5, is characterized in that, stir speed (S.S.) during described blended doping is 100-200r/min.
7. the preparation method according to claim 5 or 6, is characterized in that, described in extrude and carry out in twin screw extruder.
8. the preparation method according to any one of claim 5-7, is characterized in that, the preheating temperature in described double-screw extruder screw region is 250-300 DEG C;
Preferably, the screw speed of described twin screw extruder is 250r/min-400r/min.
9. the preparation method according to any one of claim 5-8, it is characterized in that, described method is: by red phosphor masterbatch, antimonous oxide, tetrafluoroethylene and PBT blended doping under the stir speed (S.S.) of 100-200r/min, then extrude in twin screw extruder, the preheating temperature in described double-screw extruder screw region is 250-300 DEG C, screw speed is 250r/min-400r/min, obtains described PBT fire retardant material.
10. the application of PBT fire retardant material in electronic apparatus material according to any one of claim 1-4.
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| CN201510957193.4A CN105440598A (en) | 2015-12-17 | 2015-12-17 | PBT flame-retardant material with ultrahigh stability, and preparation method and applications thereof |
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| CN201510957193.4A CN105440598A (en) | 2015-12-17 | 2015-12-17 | PBT flame-retardant material with ultrahigh stability, and preparation method and applications thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106496970A (en) * | 2016-11-17 | 2017-03-15 | 无锡明盛纺织机械有限公司 | A kind of ultrastability PBT fire proofing for being applied to field of electronics |
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| CN1478129A (en) * | 2000-03-31 | 2004-02-25 | 通用电气公司 | Flame-retardant resin molding |
| CN1810862A (en) * | 2006-02-23 | 2006-08-02 | 广州金发科技股份有限公司 | Continuous long fiber reinforced fire-retardant thermoplastic resin and its prepn |
| CN102115579A (en) * | 2010-01-04 | 2011-07-06 | 佛山市顺德区威林工程塑料有限公司 | High-toughness high-glowing-filament-ignition-temperature flame-retardant reinforced PBT (polybutylene terephthalate) material and preparation method thereof |
| CN102408651A (en) * | 2011-06-20 | 2012-04-11 | 上海鲁聚聚合物技术有限公司 | Drippage-resisting agent and preparation method thereof as well as thermoplastic resin product containing drippage-resisting agent |
| CN104559147A (en) * | 2014-12-16 | 2015-04-29 | 惠州力王佐信科技有限公司 | Anti-dripping smoke-suppression-type environment-friendly heat-conducting material and preparation method thereof |
-
2015
- 2015-12-17 CN CN201510957193.4A patent/CN105440598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478129A (en) * | 2000-03-31 | 2004-02-25 | 通用电气公司 | Flame-retardant resin molding |
| CN1810862A (en) * | 2006-02-23 | 2006-08-02 | 广州金发科技股份有限公司 | Continuous long fiber reinforced fire-retardant thermoplastic resin and its prepn |
| CN102115579A (en) * | 2010-01-04 | 2011-07-06 | 佛山市顺德区威林工程塑料有限公司 | High-toughness high-glowing-filament-ignition-temperature flame-retardant reinforced PBT (polybutylene terephthalate) material and preparation method thereof |
| CN102408651A (en) * | 2011-06-20 | 2012-04-11 | 上海鲁聚聚合物技术有限公司 | Drippage-resisting agent and preparation method thereof as well as thermoplastic resin product containing drippage-resisting agent |
| CN104559147A (en) * | 2014-12-16 | 2015-04-29 | 惠州力王佐信科技有限公司 | Anti-dripping smoke-suppression-type environment-friendly heat-conducting material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106496970A (en) * | 2016-11-17 | 2017-03-15 | 无锡明盛纺织机械有限公司 | A kind of ultrastability PBT fire proofing for being applied to field of electronics |
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Application publication date: 20160330 |