CN106496970A - A kind of ultrastability PBT fire proofing for being applied to field of electronics - Google Patents
A kind of ultrastability PBT fire proofing for being applied to field of electronics Download PDFInfo
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- CN106496970A CN106496970A CN201611011180.9A CN201611011180A CN106496970A CN 106496970 A CN106496970 A CN 106496970A CN 201611011180 A CN201611011180 A CN 201611011180A CN 106496970 A CN106496970 A CN 106496970A
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- pbt
- fire proofings
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention provides a kind of ultrastability PBT fire proofing and its preparation method and application，The PBT fire proofings of the present invention are by 15 25% white phosphorus master batches、2 5% antimony oxides、5 10% hexaphenoxycyclotriphosphazenes、1 8% organosilicon、2 20% conductive oils and 40 75%PBT are prepared，The present invention is by adding a small amount of antimony oxide in nylon base，And add a certain amount of red phosphor masterbatch and polytetrafluoroethylblended blended doping、Extrusion obtains the PBT fire proofings，Cooperate between each composition，Coordinative role causes the material that there is high stability，Up to 950 DEG C of its glow wire temperature，CTI values can reach 250V，And there is high melting means，Good mechanical performance，Good toughness，Easy processing，There is good anti-flammability，Anti-flammability is up to V0 levels，Can be widely applied to attaching plug、Microswitch、Capacitor、Electronic product、Medical treatment、Industrial and mineral、War industry equipment、Petrochemical industry、The fields such as train vehicle aircraft.
Description
Technical field
The invention belongs to fire proofing field, is related to a kind of PBT fire proofings, more particularly to one kind is applied to electronic apparatus
The ultrastability PBT fire proofing in field.
Background technology
Polybutylene terephthalate (PBT) (abbreviation PBT), is thermoplastic polyester, is the last century initial stage seventies by the U.S.
The exploitation of Celanese companies.PBT has extraordinary and hot, weatherability, chemical-resistant, and has electric property excellent
The advantages of different, water absorption is little, surface is good, is widely used in the industries such as electric, automobile, machinery, household electrical appliance, especially
It is electric industry.
Normally, electric industry has flame-retardancy requirements mostly to material, typically requires the whole nonflammable temperature of glowing filament
Up to 750 DEG C.The PBT material of early stage is modified by adding substantial amounts of fire retardant, and the whole nonflammable temperature of glowing filament can reach 750
℃.With the development of society, electronic product is increasingly intended to high-end development, European electronic product to the standard of PBT material journeys again
A step is improve, 850 DEG C are risen to by original 750 DEG C to the nonflammable temperature of glowing filament.However, according to traditional improvement
Method, continues to add fire retardant up on 750 DEG C of PBT materials in the nonflammable temperature of glowing filament, although can make the glowing filament of PBT materials not
Initiation temperature is up to 850 DEG C, but the mechanical property of material can completely lose, without actual application value.For example, existing use bromo
Triazine, antimony oxide, MCA fire retardant (Chinese names：Melamine cyanurate is combined), the fire resistance of PBT material is improved, but
The PBT material mechanical property of acquisition is excessively poor.It is additionally, since fire retardant addition big, powder is untreated to be directly added into, and leads
Processing technique is caused to be difficult to control to.In addition, fire retardant duplicate species is few, flame retarding efficiency, glowing filament efficiency are low, therefore addition
Greatly, the cost intensive of brominated triazine, causes relatively costly, is not suitable for practical application.
Therefore, the PBT material prepared in the art with more high glow wire temperature and anti-flammability is that this area is needed badly
The problem of solution.
Content of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of PBT fire proofings, are provided in particular in one kind
It is applied to the ultrastability PBT fire proofing of field of electronics.
It is that the present invention is employed the following technical solutions up to this purpose：
On the one hand, the present invention provides a kind of PBT fire proofings, and the PBT fire proofings are following by weight/mass percentage composition
Component is prepared：
The present invention is by adding a small amount of antimony oxide in PBT substrate, and adds a certain amount of white phosphorus master batch and six benzene
Three phosphonitrile of epoxide ring cooperates between each composition improving the performance of PBT material, and coordinative role causes PBT material that there is height
Stability so as to high glow wire temperature, high CTI value and excellent fire resistance and with low cost, solves
Add a large amount of antimony oxides in fire proofing and so that with high costs and preparation process is made due to antimony oxide fine powder
The problem of adult body health hazard.
In the raw material of the PBT fire proofings of the present invention, the consumption of white phosphorus master batch is 15-20%, such as 15%, 16%,
17%th, 18%, 19% or 20%.
In the raw material of the PBT fire proofings of the present invention, the consumption of antimony oxide is 2-5%, such as 2.5%, 3%,
3.5%th, 4%, 4.5% or 5%.
In the raw material of the PBT fire proofings of the present invention, the consumption of hexaphenoxycyclotriphosphazene is 5-10%, such as 5%,
5.5%th, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5% or 10%.
In the raw material of the PBT fire proofings of the present invention, the consumption of organosilicon is 1-8%, such as 1%, 2%, 3%,
4%th, 5%, 6%, 7% or 8%.
In the raw material of the PBT fire proofings of the present invention, the consumption of conductive oil is 2-20%, such as 2%, 3%, 4%,
5%th, 6%, 7%, 8%, 9%, 10%, 12%, 14%, 16%, 18% or 20%.
In the raw material of the PBT fire proofings of the present invention, the consumption of PBT is 40-75%, such as 41%, 43%, 45%,
47%th, 49%, 50%, 52%, 54%, 56%, 58%, 60%, 62%, 65%, 67%, 70%, 72% or 74%.
Preferably, PBT fire proofings of the present invention are prepared by the following component of weight/mass percentage composition：
Preferably, the organosilicon is any one in silicone grease, silicon emulsion, silicone rubber, sulphurated siliastic or silicones
Or at least two combination.
On the other hand, the invention provides the preparation method of PBT fire proofings as described in relation to the first aspect, methods described
For：By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT blending doping, then extrude
Obtain the PBT fire proofings.
In preparation method of the present invention, the stir speed (S.S.) during blending doping is 100-200r/min, for example
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, the extrusion is carried out in double screw extruder.
Preferably, the preheating temperature in the double-screw extruder screw region be 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 the double screw extruder be 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.
Used as the preferred technical solution of the present invention, the preparation method of PBT fire proofings of the present invention is：By white phosphorus master batch, three
Aoxidize two antimony, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT and be blended under the stir speed (S.S.) of 100-200r/min and mix
Miscellaneous, then to extrude in double screw extruder, the preheating temperature in the double-screw extruder screw region is 250-300 DEG C, spiral shell
Bar rotating speed is 250r/min-400r/min, obtains the PBT fire proofings.
On the other hand, the invention provides PBT fire proofings as described in relation to the first aspect in electronic apparatus material should
With.
Relative to prior art, the invention has the advantages that：
The PBT fire proofings of the present invention are by 15-25% white phosphorus master batches, 2-10% antimony oxides, six phenoxy groups of 8-25%
Three phosphonitrile of ring, 1-8% organosilicons, 2-10% conductive oils and 40-75%PBT are prepared, and the present invention is by adding in PBT substrate
Plus a small amount of antimony oxide, and a certain amount of white phosphorus master batch and hexaphenoxycyclotriphosphazene blending doping, extrusion is added to obtain institute
PBT fire proofings are stated, is cooperated between each composition, coordinative role causes the material that there is high stability, its glow wire temperature
Up to 945 DEG C, CTI values can reach 248V, and there is high melting means, good mechanical performance, good toughness, and easy processing, with good
Good anti-flammability, anti-flammability up to V0 levels, can be widely applied to attaching plug, microswitch, capacitor, electronic product, medical treatment,
The fields such as industrial and mineral, war industry equipment, petrochemical industry, train vehicle aircraft.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.Those skilled in the art should be bright
, the embodiment be only to aid in understand the present invention, be not construed as to the present invention concrete restriction.
Embodiment 1
In the present embodiment, following raw material prepares PBT fire proofings：
Its preparation method is：
By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT 100r/min's
Blending doping under stir speed (S.S.), then extrudes in double screw extruder, the preheating temperature in the double-screw extruder screw region
Spend for 300 DEG C, screw speed is 300r/min, obtain the PBT fire proofings.
Embodiment 2
In the present embodiment, following raw material prepares PBT fire proofings：
Its preparation method is：
By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT 200r/min's
Blending doping under stir speed (S.S.), then extrudes in double screw extruder, the preheating temperature in the double-screw extruder screw region
Spend for 250 DEG C, screw speed is 400r/min, obtain the PBT fire proofings.
Embodiment 3
In the present embodiment, following raw material prepares PBT fire proofings：
Its preparation method is：
By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT 150r/min's
Blending doping under stir speed (S.S.), then extrudes in double screw extruder, the preheating temperature in the double-screw extruder screw region
Spend for 280 DEG C, screw speed is 250r/minr/min, obtain the PBT fire proofings.
Embodiment 4
In the present embodiment, following raw material prepares PBT fire proofings：
Its preparation method is：
By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT 200r/min's
Blending doping under stir speed (S.S.), then extrudes in double screw extruder, the preheating temperature in the double-screw extruder screw region
Spend for 250 DEG C, screw speed is 400r/min, obtain the PBT fire proofings.
Embodiment 5
In the present embodiment, following raw material prepares PBT fire proofings：
Its preparation method is：
By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT 180r/min's
Blending doping under stir speed (S.S.), then extrudes in double screw extruder, the preheating temperature in the double-screw extruder screw region
Spend for 280 DEG C, screw speed is 350r/min, obtain the PBT fire proofings.
Comparative example 1
The comparative example is with the difference of embodiment 1, does not use antimony oxide in the preparing raw material of PBT fire proofings,
The consumption of hexaphenoxycyclotriphosphazene is 10%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 2
The comparative example is with the difference of embodiment 1, does not use six phenoxy group rings three in the preparing raw material of PBT fire proofings
Phosphonitrile, the consumption of antimony oxide is 10%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 3
The comparative example is that with the difference of embodiment 1 consumption of white phosphorus master batch is in the preparing raw material of PBT fire proofings
22%, the consumption of organosilicon is 3%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 4
The comparative example is that with the difference of embodiment 1 consumption of white phosphorus master batch is in the preparing raw material of PBT fire proofings
13%, the consumption of conductive oil is 13%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 5
The comparative example is that with the difference of embodiment 1 consumption of antimony oxide is in the preparing raw material of PBT fire proofings
1%, the consumption of organosilicon is 9%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 5
The comparative example is that with the difference of embodiment 1 consumption of antimony oxide is in the preparing raw material of PBT fire proofings
6%, the consumption of organosilicon is 4%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 6
The comparative example is with the difference of embodiment 1, hexaphenoxycyclotriphosphazene in the preparing raw material of PBT fire proofings
Consumption is 4%, and the consumption of conductive oil is 11%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 7
The comparative example is with the difference of embodiment 1, hexaphenoxycyclotriphosphazene in the preparing raw material of PBT fire proofings
It is 53% that consumption is the consumption of 12%, PBT, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 8
The comparative example is that with the difference of embodiment 1 consumption of organosilicon is in the preparing raw material of PBT fire proofings
The consumption of 0.5%, PBT is 64.5%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
Comparative example 9
The comparative example is that with the difference of embodiment 1 consumption of conductive oil is 1% in the preparing raw material of PBT fire proofings,
The consumption of PBT is 65%, and remaining raw material is same as Example 1 with raw material dosage and preparation method.
The performance of the PBT fire proofings prepared by embodiment 1-5 and comparative example 1-9 is tested, method of testing
And test result is as shown in table 1.
Table 1
Applicant state, the present invention illustrated by above-described embodiment the present invention ultrastability PBT fire proofing and
Its preparation method and application, but the invention is not limited in above-described embodiment, that is, do not mean that the present invention has to rely on above-mentioned reality
Apply example to implement.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, each to product of the present invention
The interpolation of the equivalence replacement of raw material and auxiliary element, selection of concrete mode etc., all fall within protection scope of the present invention and disclosure
Within the scope of.
Claims (9)
1. a kind of PBT fire proofings, it is characterised in that the PBT fire proofings are prepared by the following component of weight/mass percentage composition
Obtain：
2. PBT fire proofings according to claim 1, it is characterised in that the PBT fire proofings are by weight/mass percentage composition
Following component is prepared：
3. PBT fire proofings according to claim 1 and 2, it is characterised in that the organosilicon is silicone grease, silicon emulsion, silicon
In rubber, sulphurated siliastic or silicones any one or at least two combination.
4. the preparation method of the PBT fire proofings according to any one of claim 1-3, it is characterised in that methods described
For：By white phosphorus master batch, antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT blending doping, then extrude
Obtain the PBT fire proofings.
5. preparation method according to claim 4, it is characterised in that the stir speed (S.S.) when blending is adulterated is 100-
200r/min.
6. the preparation method according to claim 4 or 5, it is characterised in that the extrusion is carried out in double screw extruder.
7. the preparation method according to any one of claim 4-6, it is characterised in that the double-screw extruder screw area
The preheating temperature in domain is 250-300 DEG C；
Preferably, the screw speed of the double screw extruder is 250r/min-400r/min.
8. the preparation method according to any one of claim 4-7, it is characterised in that methods described is：By white phosphorus master batch,
Antimony oxide, hexaphenoxycyclotriphosphazene, organosilicon, conductive oil and PBT are blended under the stir speed (S.S.) of 100-200r/min
Doping, then extrudes in double screw extruder, and the preheating temperature in the double-screw extruder screw region is 250-300 DEG C,
Screw speed is 250r/min-400r/min, obtains the PBT fire proofings.
9. application of the PBT fire proofings according to any one of claim 1-3 in electronic apparatus material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611011180.9A CN106496970A (en) | 2016-11-17 | 2016-11-17 | A kind of ultrastability PBT fire proofing for being applied to field of electronics |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611011180.9A CN106496970A (en) | 2016-11-17 | 2016-11-17 | A kind of ultrastability PBT fire proofing for being applied to field of electronics |
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| 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 |
| CN104356565A (en) * | 2014-10-30 | 2015-02-18 | 济南泰星精细化工有限公司 | Aluminophosphate molecular sieve flame retardant and preparation method thereof |
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2016
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