CN103756266A - Flame retardant glass fiber reinforced PBT (Polybutylene Terephthalate) composite material and preparation method thereof - Google Patents
Flame retardant glass fiber reinforced PBT (Polybutylene Terephthalate) composite material and preparation method thereof Download PDFInfo
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- CN103756266A CN103756266A CN201310714232.9A CN201310714232A CN103756266A CN 103756266 A CN103756266 A CN 103756266A CN 201310714232 A CN201310714232 A CN 201310714232A CN 103756266 A CN103756266 A CN 103756266A
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Abstract
The invention discloses a flame retardant glass fiber reinforced PBT (Polybutylene Terephthalate) composite material for manufacturing a coil former of a motor and a preparation method thereof. The composite material is mainly prepared from the following raw materials: PBT, alkali-free glass fibers, a compound flame retardant, a flexibilizer, a wear-resistant agent, an antistatic agent, a dispersant and an antioxidant. The preparation method comprises the following steps: (1) first, drying PBT at 120 DEG C for over 8 hours, and then, uniformly mixing with the compound flame retardant, the wear-resistant agent, the antistatic agent, the dispersant and the antioxidant; and (2) melting and extruding the raw materials mixed in the step (1) in a melt extruder, continuously adding the alkali-free glass fibers in a side feeding manner, cooling and pelleting to obtain a product. The product disclosed by the invention has excellent wear resistance and permanent antistatic property, and has better cost performance compared with the nylon framework or a polypropylene framework currently available in the market.
Description
Technical field
The present invention relates to a kind of flame-proof glass fibre for the manufacture of motor coil skeleton and strengthen PBT matrix material and preparation method thereof, belong to modified poly ester technical field.
Background technology
PBT is a kind of conventional engineering plastics, is widely used in various electrical and electronic components.The most outstanding character of PBT is versatility, its value and versatility mainly come from good chemical resistance, common acid, alkali organic solvent work hardly to it, PBT is nontoxic, tasteless, have good electrical property and high-frequency insulation, the PBT rigidity after glass strengthens is high, and resistance toheat is good, be suitable for production machinery part, corrosion-resistant part and insulating part, be also widely used in various electrical and electronic components.
Coil rack on present market, the device that volume is little, is used nylon (PA6/PA66) as raw material such as electronic transformer, rly., magnetic valve etc. are main; But nylon material easily absorbs water, and cost is higher, correspondence is product cheaply, on market, also use polypropylene (pp) to make coil rack as raw material, but propylene (PP) intensity difference, rigidity is low, and along with the progress of epoch and technology, electronic product businessman constantly caters to consumer demand from reducing costs with improving product performance two aspects.Therefore, find a kind of each side and have excellent properties, it is particularly important that the product of price excellence becomes.
Summary of the invention
The technical problem to be solved in the present invention is, for existing polyamide skeleton, easily water suction is expensive, the shortcoming that propylene frame strength rigidity is poor, provides a kind of rigidity intensity good, possesses the moderate coil rack special-purpose anti-flaming of wear-resisting permanent anti-static and cost simultaneously and strengthens PBT matrix material.
The technical solution adopted for the present invention to solve the technical problems is as follows:
Flame-proof glass fibre for the manufacture of coil rack strengthens a PBT matrix material, mainly by the raw material of following parts by weight, is made: PBT100 part; 10～30 parts, glass fibre; 15～20 parts of composite flame-retardant agents; 0～6 part of toughner; 1～5 part of anti-wear agent; 5～10 parts of permanent anti-static agent; 0.2～1 part of dispersion agent; 0.2～0.8 part, oxidation inhibitor.Wherein composite flame-retardant agent is by bromide fire retardant and antimonous oxide is compound forms, and wherein bromide fire retardant is TDE, brominated triazine or brominated epoxy resin, and the weight ratio of bromide fire retardant and antimonous oxide is: 10～20: 3～5.
Described glass fibre is generally selected alkali free glass fibre, for the enhancing of thermoplastics.
Described toughner is containing the series copolymer of epoxy-functional, containing the nucleocapsid toughner of acrylate, containing the multipolymer of acrylate, one or more compound in Ethylene Propylene Terpolymer grafted maleic anhydride.
Described anti-wear agent is the PTFE powder of molecular weight between 200,000-400,000.
Described permanent anti-static agent is selected from one or more the mixture in polyether ester, polyether ester amides, polyetheramides.
Described oxidation inhibitor is tetramethylolmethane four 3-(3,5-di-t-butyl-4 hydroxybenzyl) propionic ester, ethylene glycol (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester), 3,5 diphosphorous acids three ((2,4-di-tert-butyl-phenyl) ester, Irganox259,4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) etc. are several compound wherein.
Described dispersion agent is PETS.
The preparation method that a kind of flame-proof glass fibre for the manufacture of coil rack strengthens PBT matrix material is as follows:
First PBT is dried 8 hours at 120-150 ℃, subsequently with composite flame-retardant agent, toughner, anti-wear agent, permanent anti-static agent, oxidation inhibitor, dispersion agent is mixed from feeder and is entered twin screw extruder by mixer, plasticizing, after melting, add glass fibre, again through extruding, tie rod, cooling, pelletizing, all mixed, packing, the length-to-diameter ratio that is applied to the twin screw extruder in mixture preparation method of the present invention is at least 32, and control and vacuum-pumping equipment with accurate temperature, vacuum tightness > 0.05Mpa, each section of temperature is controlled between 200-270 ℃.
The present invention fills a prescription rationally, and product strength is high, possess wear-resisting permanent anti-static characteristic, and cost is moderate.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
First PBT is dried 8 hours at 120-150 ℃, subsequently with composite flame-retardant agent, toughner, anti-wear agent agent, permanent anti-static agent, oxidation inhibitor agent, dispersion agent is mixed from feeder and is entered twin screw extruder by mixer, plasticizing, after melting, add glass fibre, again through extruding, tie rod, cooling, pelletizing, all mixed, packing, the length-to-diameter ratio that is applied to the twin screw extruder in mixture preparation method of the present invention is at least 32, and control and vacuum-pumping equipment with accurate temperature, vacuum tightness > 0.05Mpa, each section of temperature is controlled between 200-270 ℃.Each component and consumption (weight percent) are in Table 1.
Embodiment 2:
Production method is with embodiment 1, and each component and consumption (weight percent) are in Table 1.
Embodiment 3:
Production method is with embodiment 1, and each component and consumption (weight percent) are in Table 1.
Embodiment 4:
Production method is with embodiment 1, and each component and consumption (weight percent) are in Table 1.
Table 1 embodiment 1～4 raw material and the performance test results thereof
As can be seen from Table 1, along with the increase of glass fibre, the rigidity of material increases, owing to suitably having supplemented toughner, it is stable that the impelling strength of material keeps, and material has excellent flame retardant properties, wear resistance and permanent antistatic simultaneously, market value with current PBT, flame-retardant reinforced PBT price of the present invention has very large advantage compared with nylon product, and for propylene product, flame-retardant reinforced PBT performance boost of the present invention is obvious, and price can maintain an equal level with it substantially, show excellent cost performance.
Claims (9)
1. flame-proof glass fibre strengthens a PBT matrix material, comprises the feed composition of following parts by weight: 100 parts of PBT; 10～30 parts, glass fibre; 15～20 parts of composite flame-retardant agents; 0～6 part of toughner; 1～5 part of anti-wear agent; 5～10 parts of permanent anti-static agent; 0.2～1 part of dispersion agent; 0.2～0.8 part, oxidation inhibitor;
Described composite flame-retardant agent is by bromide fire retardant and antimonous oxide is compound forms, and wherein bromide fire retardant is TDE, brominated triazine or brominated epoxy resin, and the weight ratio of bromide fire retardant and antimonous oxide is: 10-20: 3-5.
2. a kind of flame-proof glass fibre according to claim 1 strengthens PBT matrix material, it is characterized in that: described glass fibre is alkali free glass fibre.
3. according to a kind of flame-proof glass fibre described in claim 1, strengthen PBT matrix material, it is characterized in that: toughner is series copolymer containing epoxy-functional, containing the nucleocapsid toughner of acrylate, containing the multipolymer of acrylate, one or more compound in Ethylene Propylene Terpolymer grafted maleic anhydride.
4. according to a kind of flame-proof glass fibre described in claim 1, strengthen PBT matrix material, it is characterized in that: anti-wear agent is the PTFE powder of molecular weight between 200,000-400,000.
5. according to a kind of flame-proof glass fibre described in claim 1, strengthen PBT matrix material, it is characterized in that: permanent anti-static agent is one or more the mixture in polyether ester, polyether ester amides, polyetheramides.
6. a kind of flame-proof glass fibre according to claim 1 strengthens PBT matrix material, it is characterized in that: oxidation inhibitor is tetramethylolmethane four 3-(3,5-di-t-butyl-4 hydroxybenzyl) propionic ester, ethylene glycol (β-(3,5-di-t-butyl-4-hydroxy phenyl) propionic ester), 3,5 diphosphorous acids three ((2,4-di-tert-butyl-phenyl) ester, Irganox259,4, several compound in 4 '-thiobis (the 6-tertiary butyl-3-methylphenol).
7. a kind of flame-proof glass fibre according to claim 1 strengthens PBT matrix material, it is characterized in that: dispersion agent is PETS.
8. according to a kind of flame-proof glass fibre described in claim 1, strengthen the preparation method of PBT matrix material, it is characterized in that: first PBT is dried 8 hours at 120-150 ℃, then after mixing by mixer with composite flame-retardant agent, toughner, anti-wear agent agent, permanent anti-static agent, oxidation inhibitor agent, dispersion agent, from feeder, enter twin screw extruder, plasticizing, add again glass fibre after melting, then through extruding, tie rod, cooling, pelletizing, all mix, pack and to obtain product.
9. a kind of flame-proof glass fibre according to claim 8 strengthens the preparation method of PBT matrix material, it is characterized in that: the length-to-diameter ratio of described twin screw extruder is at least 32, and control and vacuum-pumping equipment with temperature, vacuum tightness > 0.05Mpa, each section of temperature is controlled between 200-270 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714232.9A CN103756266A (en) | 2013-12-20 | 2013-12-20 | Flame retardant glass fiber reinforced PBT (Polybutylene Terephthalate) composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310714232.9A CN103756266A (en) | 2013-12-20 | 2013-12-20 | Flame retardant glass fiber reinforced PBT (Polybutylene Terephthalate) composite material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456403A (en) * | 2017-12-25 | 2018-08-28 | 福建华塑新材料有限公司 | A kind of fiber glass reinforced PBT composite material and preparation method |
| CN109294175A (en) * | 2018-09-20 | 2019-02-01 | 安徽江淮汽车集团股份有限公司 | A kind of flame-proof abrasion-resistant PBT composite |
| CN110283432A (en) * | 2019-05-09 | 2019-09-27 | 南通开普乐工程塑料有限公司 | A kind of low temperature resistant flame retardant enhancing PBT composite and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309692A (en) * | 1999-04-27 | 2000-11-07 | Toray Ind Inc | Flame retardant polybutylene terephthalate resin composition and formed article |
| CN101747599A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Antistatic modified polyester and method for preparing same |
| CN102532818A (en) * | 2010-12-16 | 2012-07-04 | 上海普利特复合材料股份有限公司 | Carbon fiber-glass fiber composite enhanced flame-retardant PBT (Polybutylece Terephthalate) material and preparation method thereof |
-
2013
- 2013-12-20 CN CN201310714232.9A patent/CN103756266A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309692A (en) * | 1999-04-27 | 2000-11-07 | Toray Ind Inc | Flame retardant polybutylene terephthalate resin composition and formed article |
| CN101747599A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Antistatic modified polyester and method for preparing same |
| CN102532818A (en) * | 2010-12-16 | 2012-07-04 | 上海普利特复合材料股份有限公司 | Carbon fiber-glass fiber composite enhanced flame-retardant PBT (Polybutylece Terephthalate) material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456403A (en) * | 2017-12-25 | 2018-08-28 | 福建华塑新材料有限公司 | A kind of fiber glass reinforced PBT composite material and preparation method |
| CN109294175A (en) * | 2018-09-20 | 2019-02-01 | 安徽江淮汽车集团股份有限公司 | A kind of flame-proof abrasion-resistant PBT composite |
| CN110283432A (en) * | 2019-05-09 | 2019-09-27 | 南通开普乐工程塑料有限公司 | A kind of low temperature resistant flame retardant enhancing PBT composite and preparation method thereof |
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Application publication date: 20140430 |