CN102391623A - Ultrahigh-glowing filament temperature and flame-retardant reinforced PBT (polybutylece terephthalate) composite material and preparation method thereof - Google Patents
Ultrahigh-glowing filament temperature and flame-retardant reinforced PBT (polybutylece terephthalate) composite material and preparation method thereof Download PDFInfo
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- CN102391623A CN102391623A CN2011103041692A CN201110304169A CN102391623A CN 102391623 A CN102391623 A CN 102391623A CN 2011103041692 A CN2011103041692 A CN 2011103041692A CN 201110304169 A CN201110304169 A CN 201110304169A CN 102391623 A CN102391623 A CN 102391623A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a macromolecular material and a preparation method thereof, in particular to a PBT (polybutylece terephthalate) composite material and a preparation method thereof. The PBT composite material comprises the following components in percentage by weight: 20-25 percent of polybutylene terephthalate, 6-20 percent of bromine containing flame retardant, 5-15 percent of phosphorus and nitrogen containing flame retardant, 5-15 percent of inorganic flame retardant, 20-40 percent of glass fiber, 2-8 percent of toughening agent, 0.2-0.4 percent of antioxidant and 0.3-2 percent of lubricating dispersant. The preparation method comprises the following steps of weighing the components in the percentage by weight; putting plastic and adjuvant into a high-speed mixing machine, mixing the plastic and the adjuvant for 2-5 minutes and discharging a mixture; controlling a double-screw extruder to extrude and granulate the mixture; and adding glass fiber in the extruding process to obtain the PBT composite material. The flame-retardant property and the strength of the PBT composite material are obviously improved; using requirements of more occasions can be met; the PBT composite material has high application value and good market prospect; and the used raw materials are the conventional products in the field of engineering plastics and are low in cost.
Description
Technical field
The present invention relates to a kind of macromolecular material and preparation method, especially relate to a kind of PBT matrix material and preparation method thereof.
Background technology
Polybutylene terephthalate (PBT) is a kind of present use thermoplastic engineering plastic widely, because of its good thermotolerance, weathering resistance, anti-chemical etc. are widely used in the electronic apparatus.Along with the development of modification technology, spun glass strengthens and the mineral-filled effective defective of improving shrinking percentage, has greatly increased its scope of application.
Be widely used in the Low-voltage Electronic electrical component after it is flame-retardant modified, along with European Union's glowing filament standard more and more harsher to the electronic product under the extreme environment, visible by 750 ℃ of 30s, 850 ℃ of 30s till now originally, flame-retardant standard is the trend that improves gradually.So 850 ℃ do not fire, 930 ℃ of 30s and CTI >=300V just can reach or exceed American-European requirement, the application that can improve PBT greatly.
But at present domestic do not have a corresponding product, though and the performance of imported product is higher, price is extremely expensive, does not have the value of extensively promoting the use of.
Summary of the invention
The objective of the invention is in order to provide a kind of superelevation glow wire temperature fire-retardant and have fire-retardant reinforced PBT composite material of better mechanical property and preparation method thereof.
In order to solve above-mentioned technical problem; The technical scheme that the present invention adopts is achieved in that a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material, and it is characterized in that: mass percent consists of: polybutylene terephthalate 20～55%, bromide fire retardant 6～20%, phosphorus-nitrogen containing flame retardant 5～15%, inorganic combustion inhibitor 5～15%, spun glass 20～40%, toughner 2～8%, oxidation inhibitor 0.2～0.4%, lubrication dispersing agent 0.3～2%.
The present invention is composite through the selectivity of each component and content thereof; Make the flame retardant properties and the intensity of product significantly improve; Can satisfy the user demand of more occasions; Have excellent application value and market outlook, employed raw material is the comparatively conventional kind of using in the engineering plastics field simultaneously, and is with low cost.Significantly reduce than the imported product cost.
The present invention provides further optimized technical scheme: the limiting viscosity of described polybutylene terephthalate is 0.8～1.1Dl/g.
Used bromide fire retardant can be in the technical scheme: described fire retardant is a TDE, a kind of in brominated styrene, the brominated triazine.
Described phosphorus-nitrogen containing flame retardant is at least a in triphenylphosphate, trimeric cyanamide and the melamine derivative.
Described spun glass is a non-alkali glass, and handle through silane coupling agent on the surface of this spun glass; Described silane coupling agent is γ-An Bingjisanyiyangjiguiwan or γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane.
Described toughner is ethylene-methyl acrylate copolymer or EPDM grafted maleic anhydride.
Described oxidation inhibitor vapour crust 1076, vapour crust 1010 and vapour crust 168 a kind of or two kinds are composite.
Described lubrication dispersing agent is a kind of among OP wax, EBS and the PETS.
Described inorganic combustion inhibitor is that a kind of in white lake, Marinco H, Antimony Trioxide: 99.5Min, Vanadium Pentoxide in FLAKES, the zinc borate or two to three kinds are composite.
Use these preferred raw materials, resulting product performance are more superior, shown in the concrete visible embodiment.
Accordingly, the preparation method of product of the present invention is: a kind of preparation method of superelevation glowing filament environment-friendly flame-retardant reinforced PBT matrix material may further comprise the steps:
A, raw materials weighing according to the above ratio;
B, plastics and auxiliary agent are put into discharging behind high-speed mixer and mixing 2～5min; Obtain mixture; Control 230～245 ℃ of the processing temperatures of twin screw extruder then; Screw speed 250～350 commentaries on classics/min place the twin screw extruder granulation with mixture, in extrusion, add spun glass and promptly obtain product.230～245 ℃ of processing temperatures are according to the device characteristics decision, and the intermediate stations controlled temperature of its processing is the highest, and two ends are lower; Scope is all between 230～245 ℃.
Method of manufacture is simple, and employed technology and equipment are simply ripe, easily control.Can satisfy the needs of producing novel superelevation glowing filament environment-friendly flame-retardant reinforced PBT matrix material of the present invention.
Embodiment
For making more detailed understanding method of use of the present invention of those skilled in the art and technique effect, following examples and relevant detection data are provided.
Embodiment one
Raw material and proportioning:
PBT: limiting viscosity 0.8Dl/g, 41%;
Bromide fire retardant: TDE, trade(brand)name: refined precious 8010,13%;
Phosphor nitrogen combustion inhibitor: trimeric cyanamide mixed 7% with triphenylphosphate by 1: 1;
Inorganic combustion inhibitor: white lake mixed 5% with Marinco H by 1: 1;
Toughner: ethylene-methyl acrylate copolymer, 2.5%;
Oxidation inhibitor: vapour crust 1076,0.4%;
Lubricant: OP wax, 1.1%;
Spun glass: Jushi Group Co., Ltd. produces 990 glasses, 30%; Itself has passed through surface treatment commercially available glass fiber product, but the present invention is again through coupling agent treatment, coupling agent: γ-An Bingjisanyiyangjiguiwan, domestic model: KH550, consumption: 1% of spun glass weight.This dosage of surfactant seldom is not counted in the prescription total amount.
Working method: load weighted plastics and auxiliary agent are put into the high-speed mixer and mixing 2min thing that is uniformly mixed; Control 230～245 ℃ of the processing temperatures of twin screw extruder then; Screw speed 300 commentaries on classics/min; Mixture is placed the twin screw extruder granulation, and the spun glass that in extrusion, adds parts by weight 30% promptly obtains product.
Embodiment two
PBT: limiting viscosity is 0.95Dl/g, 47%;
Bromide fire retardant: brominated styrene, trade(brand)name: refined precious 7010,15%;
Phosphor nitrogen combustion inhibitor: trimeric cyanamide, 8%;
Inorganic combustion inhibitor: Antimony Trioxide: 99.5Min, 6%;
Toughner: the EPDM grafted maleic anhydride, 2.5%,
Oxidation inhibitor: vapour crust 1076, vapour crust 168 are by 1: 1 composite mixture, 0.3%;
Lubricant: OP wax, 1.2%;
Spun glass: Jushi Group Co., Ltd. produces 988A glass, 20%; Commercially available fiberglass surfacing is again through coupling agent treatment, coupling agent: γ-An Bingjisanyiyangjiguiwan, domestic model: KH550, consumption: 1% of spun glass weight.
Working method: load weighted plastics and auxiliary agent are put into the high-speed mixer and mixing 3min thing that is uniformly mixed; Control 230～245 ℃ of the processing temperatures of twin screw extruder then; Screw speed 300 commentaries on classics/min; Mixture is placed the twin screw extruder granulation, and the spun glass that in extrusion, adds parts by weight 20% promptly obtains product.
Embodiment three
PBT: limiting viscosity is 1.0Dl/g, 28%;
Bromide fire retardant: brominated triazine, trade(brand)name: Dead Sea bromine FR245,17%;
Phosphor nitrogen combustion inhibitor: melamine derivative MCA, 9%;
Inorganic combustion inhibitor: Marinco H, 6%;
Toughner: ethylene-methyl acrylate copolymer, 3.5%;
Oxidation inhibitor: vapour crust 1076, vapour crust 168 are by 1: 1 composite mixture, 0.3%;
Lubricant: EBS, 1.2%;
Spun glass: Jushi Group Co., Ltd. produces 990 glasses, 35%; Commercially available spun glass is not done extra surface treatment.
Working method: load weighted plastics and auxiliary agent are put into the high-speed mixer and mixing 4min thing that is uniformly mixed; Control 230～245 ℃ of the processing temperatures of twin screw extruder then; Screw speed 320 commentaries on classics/min; Mixture is placed the twin screw extruder granulation, and the spun glass that in extrusion, adds parts by weight 35% promptly obtains product.
Embodiment four
PBT: limiting viscosity is 1.2Dl/g, 29%;
Bromide fire retardant: brominated styrene, trade(brand)name: refined precious 7010,19%;
Phosphor nitrogen combustion inhibitor: trimeric cyanamide, 9%;
Inorganic combustion inhibitor: zinc borate and Vanadium Pentoxide in FLAKES, Marinco H are by 1: 2: 2 blended mixture, 8%;
Toughner: EPDM grafted maleic anhydride, 3.5%;
Oxidation inhibitor: vapour crust 1010,0.2%;
Lubricant: PETS, 1.3%;
Spun glass: Jushi Group Co., Ltd. produces 990 glasses, 30%; Commercially available fiberglass surfacing is again through coupling agent treatment, coupling agent: γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane, domestic model: KH560, consumption: 1% of spun glass weight.
Working method: load weighted plastics and auxiliary agent are put into the high-speed mixer and mixing 5min thing that is uniformly mixed; Control 230～245 ℃ of the processing temperatures of twin screw extruder then; Screw speed 320 commentaries on classics/min; Mixture is placed the twin screw extruder granulation, and the spun glass that in extrusion, adds parts by weight 30% promptly obtains product.
It is as shown in table 1 that the product performance of above-mentioned four groups of embodiment detect data:
Table 1: performance of products detects table
| Interventions Requested | Testing standard | Implement 1 | Implement 2 | Implement 3 | Embodiment 4 |
| Tensile strength (MPa)) | IS0527：1996 | 108.5 | 105.3 | 104.7 | ?109.2 |
| Flexural strength (MPa)) | ISO178：1993 | 161 | 157.1 | 155 | ?158.5 |
| Simple beam notched Izod impact strength (J/M) | ISO179：2000 | 109 | 107 | 102 | ?105 |
| Flame retardant rating (1.6mm) | UL94 | V0 | V0 | V0 | ?V0 |
| GWIT(850℃) | IEC60695 | Do not fire | Do not fire | Do not fire | Do not fire |
| GWIT(930℃) | IEC60695 | ≥30s | ≤30s | ≤30s | ?≤30s |
| CTI(V) | IEC60112 | 325 | 350 | 375 | ?400 |
Can find out that from table 1 glowing filament that fire-retardant reinforced PBT composite material of the present invention not only has a superelevation does not fire temperature, higher CTI has the favorable mechanical performance simultaneously, and with low cost, can satisfy range of application extremely widely, is fit to suitability for industrialized production.
Claims (10)
1. superelevation glow wire temperature fire-retardant reinforced PBT composite material, it is characterized in that: this matrix material comprises following component (weight ratio):
Polybutylene terephthalate 20～55%;
Bromide fire retardant 6～20%;
Phosphorus-nitrogen containing flame retardant 5～15%;
Inorganic combustion inhibitor 5～15%;
Spun glass 20～40%;
Toughner 2～8%;
Oxidation inhibitor 0.2～0.4%;
Lubrication dispersing agent 0.3～2%.
2. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1, it is characterized in that: the limiting viscosity of described polybutylene terephthalate is 0.8～1.2Dl/g.
3. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1 is characterized in that: described bromide fire retardant is a kind of in TDE, brominated styrene, the brominated triazine.
4. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1 is characterized in that: described phosphorus-nitrogen containing flame retardant is at least a in triphenylphosphate, trimeric cyanamide and the melamine derivative.
5. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1 is characterized in that: described inorganic combustion inhibitor is that a kind of in white lake, Marinco H, Antimony Trioxide: 99.5Min, Vanadium Pentoxide in FLAKES, the zinc borate or two to three kinds are composite.
6. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1, it is characterized in that: described spun glass is a non-alkali glass, and handle through silane coupling agent on the surface of this spun glass; Described silane coupling agent is γ-An Bingjisanyiyangjiguiwan or γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane.
7. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1 is characterized in that: described lubrication dispersing agent is a kind of among OP wax, EBS, the PETS.
8. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1 is characterized in that: described toughner is ethylene-methyl acrylate copolymer or EPDM grafted maleic anhydride.
9. a kind of superelevation glow wire temperature fire-retardant reinforced PBT composite material according to claim 1 is characterized in that: described oxidation inhibitor is that a kind of in vapour crust 1076, vapour crust 1010, the vapour crust 168 or two kinds are composite.
10. according to the working method of any described superelevation glow wire temperature fire-retardant reinforced PBT composite material in the claim 1 to 9, step comprises:
A, by the proportioning raw materials weighing;
B, plastics and auxiliary agent are put into discharging behind high-speed mixer and mixing 2～5min; Obtain mixture; Control 230～245 ℃ of the processing temperatures of twin screw extruder then; Screw speed 250～350 commentaries on classics/min place the twin screw extruder granulation with mixture, in extrusion, add spun glass and promptly obtain product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103041692A CN102391623A (en) | 2011-09-30 | 2011-09-30 | Ultrahigh-glowing filament temperature and flame-retardant reinforced PBT (polybutylece terephthalate) composite material and preparation method thereof |
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| CN2011103041692A CN102391623A (en) | 2011-09-30 | 2011-09-30 | Ultrahigh-glowing filament temperature and flame-retardant reinforced PBT (polybutylece terephthalate) composite material and preparation method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327467A (en) * | 2014-11-21 | 2015-02-04 | 古道尔工程塑胶（深圳）有限公司 | Intumescent high-glow-wire ignition temperature PBT (polybutylece terephthalate) composite material and preparation method thereof |
| CN104845299A (en) * | 2015-05-27 | 2015-08-19 | 佛山市顺德区美的洗涤电器制造有限公司 | Glass fiber reinforced flame-retardant PBT material for washing pump and washing pump |
| CN106280323A (en) * | 2016-09-26 | 2017-01-04 | 广东思汗新材料有限公司 | A kind of 850 DEG C of glowing filaments of enhancement mode are nonflammable, PBT/ASA composite and preparation method thereof |
| CN107082954A (en) * | 2017-05-18 | 2017-08-22 | 广东圆融新材料有限公司 | A kind of high-temp resisting high-humidity resisting, high ball press temperature, have halogen Halogen to compound the nonflammable PP materials of 850 DEG C of glowing filament |
| CN107400343A (en) * | 2017-09-15 | 2017-11-28 | 安徽江淮汽车集团股份有限公司 | A kind of fire-retardant scratch-resistant PBT composite and preparation method thereof |
| CN107418156A (en) * | 2017-04-21 | 2017-12-01 | 金旸（厦门）新材料科技有限公司 | A kind of high glow-wire enhancing flame retardant type PBT composite and preparation method thereof |
| CN107759985A (en) * | 2017-11-15 | 2018-03-06 | 昆山飞奔塑胶模具有限公司 | A kind of low warpage fire proofing and preparation method thereof |
| CN108164916A (en) * | 2017-12-28 | 2018-06-15 | 合肥永健工贸有限公司 | A kind of ABS black flame-retardants modified materials |
| CN108624008A (en) * | 2018-04-24 | 2018-10-09 | 嘉兴希卡姆复合材料有限公司 | A kind of flame-retardant enhanced PBT material and preparation method thereof |
| CN109486123A (en) * | 2018-10-10 | 2019-03-19 | 深圳市富恒新材料股份有限公司 | A kind of impact resistance high glowing filament ignition temperature PBT material and preparation method thereof |
| CN110016211A (en) * | 2019-04-18 | 2019-07-16 | 南通瑞隆新材料有限公司 | A kind of flame-retardant enhanced PBT material and preparation method thereof |
| CN112795147A (en) * | 2020-12-28 | 2021-05-14 | 金发科技股份有限公司 | high-GWIT flame-retardant PBT composition and preparation method and application thereof |
| CN112795145A (en) * | 2020-12-25 | 2021-05-14 | 金发科技股份有限公司 | Antimony-white-free high-GWIT brominated flame-retardant PBT, and preparation method and application thereof |
| CN112940461A (en) * | 2020-12-28 | 2021-06-11 | 金发科技股份有限公司 | high-GWIT flame-retardant PBT/PC (polybutylene terephthalate/polycarbonate) as well as preparation method and application thereof |
| CN114621561A (en) * | 2020-12-11 | 2022-06-14 | 湖南登科材料科技有限公司 | Electronic product over-glow wire plastic and preparation method thereof |
| CN114891326A (en) * | 2022-05-30 | 2022-08-12 | 东莞市百思特塑胶有限公司 | Short glass fiber reinforced flame-retardant high-CTI high-glow-wire environment-friendly PBT (polybutylene terephthalate) |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327467A (en) * | 2014-11-21 | 2015-02-04 | 古道尔工程塑胶（深圳）有限公司 | Intumescent high-glow-wire ignition temperature PBT (polybutylece terephthalate) composite material and preparation method thereof |
| CN104845299A (en) * | 2015-05-27 | 2015-08-19 | 佛山市顺德区美的洗涤电器制造有限公司 | Glass fiber reinforced flame-retardant PBT material for washing pump and washing pump |
| CN106280323A (en) * | 2016-09-26 | 2017-01-04 | 广东思汗新材料有限公司 | A kind of 850 DEG C of glowing filaments of enhancement mode are nonflammable, PBT/ASA composite and preparation method thereof |
| CN107418156B (en) * | 2017-04-21 | 2019-12-03 | 金旸（厦门）新材料科技有限公司 | A kind of high glow-wire enhancing flame retardant type PBT composite and preparation method thereof |
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Application publication date: 20120328 |