CN103525032A - Shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof - Google Patents
Shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof Download PDFInfo
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- CN103525032A CN103525032A CN201210224271.6A CN201210224271A CN103525032A CN 103525032 A CN103525032 A CN 103525032A CN 201210224271 A CN201210224271 A CN 201210224271A CN 103525032 A CN103525032 A CN 103525032A
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Abstract
The invention discloses a shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and a preparation method thereof. The shock-resistant flame-retardant reinforced PBT composite material comprises the following components in percentage by mass: 45-60% of PBT, 13-20% of polymer flame retardant, 3-10% of antimony trioxide, 0.5-3% of impact modifier, 5-40% of alkali-free glass fiber, 0.5-4% of surface treating agent, 0.2-0.5% of antioxidant, 0.5-5% of toughener and 0.1-1% of lubricant. The composite material well balances the shock resistance, flame retardancy, weather resistance, compatibility, dispersibility, service life and the like of the PBT, thereby providing a PBT composite material with excellent comprehensive properties, and widening the application range of the PBT. The preparation method disclosed by the invention is simple and easy to operate.
Description
Technical field
The present invention relates to a kind of PBT matrix material and preparation method thereof, the specifically fire-retardant enhancing of a kind of shock resistance PBT matrix material and preparation method thereof.
Background technology
Polybutylene terephthalate (PBT) is one of five large-engineering plastics, because it has excellent electrical properties and processing characteristics is widely used.Yet due to the cause that contains phenyl ring, ester group and methylene radical in PBT molecular structure, cause PBT molecular chain rigidity greatly and have high crystallization velocity, thereby causing the notched Izod impact strength of PBT material low, its Application Areas is restricted.
Summary of the invention
The object of the present invention is to provide a kind of high impact properties, high flame retardant usefulness and there is the fire-retardant enhancing of shock resistance PBT matrix material of good weatherability properties and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is: the fire-retardant enhancing of a kind of shock resistance PBT matrix material, its component by mass percent proportioning is: PBT 45%～60%, aggretion type fire retardant 13%～20%, antimonous oxide 3%～10%, impact modifier 0.5%～3%, alkali free glass fibre 5%～40%, surface treatment agent 0.5%～4%, oxidation inhibitor 0.2%～0.5%, toughner 0.5%～5%, lubricant 0.1%～1%.
Described aggretion type fire retardant is poly-2,6-dibromo phenylene ether.
Described impact modifier is that acrylic acid-grafted organosilicon type LP2085 impact modifier ，You Shangneng Polymer Tech Co., Ltd., Guangzhou produces.
Described surface treatment agent is silane coupling agent.
Described oxidation inhibitor is the compound of phenolic antioxidant 1076 and phosphite ester kind antioxidant 168.
Described toughner is glycidyl methacrylate graft POE, maleic anhydride graft POE, ethene-butylacrylic acid copolymer, ethylene-propylene acid butyl ester-glycidyl ester terpolymer, Low Density Polyethylene or its interworking thing.
Described lubricant is one or more of EVA, OP wax, TAF, calcium stearate.
The preparation method of the fire-retardant enhancing of above-mentioned a kind of shock resistance PBT matrix material, comprises the following steps:
(1) above-mentioned each component is weighed in proportion, prepared burden;
(2) PBT is dried to 4～6 hours at 120 ℃～130 ℃, moisture control is below 0.03%, dry rear standby;
(3) PBT after drying treatment and aggretion type fire retardant, antimonous oxide, impact modifier, oxidation inhibitor, toughner and lubricant are added in agitation vat, stir it is fully mixed;
(4) above-mentioned compound and alkali free glass fibre and surface treatment agent one are reinstated to twin screw extruder extruding pelletization, control screw speed is 250～350rpm, under the conveying and shearing action of twin screw extruder, through fusion plastification, mediate mixing, head is extruded, tie rod, cooling, pelletizing, dry, obtains the fire-retardant enhancing of a kind of shock resistance PBT matrix material.
The invention has the beneficial effects as follows, by impact-resistant modified, fiberglass reinforced fire retardant and a kind of PBT matrix material with high impact properties, high flame retardant and good weatherability properties of adding appropriate oxidation inhibitor, toughner, lubricant to obtain, compare with existing PBT material, the present invention well balance the shock resistance of PBT, flame retardant properties, weather resistance, compatibility performance, dispersing property and work-ing life etc., thereby a kind of PBT matrix material of high comprehensive performance is provided, has widened the Application Areas of PBT.Preparation method provided by the present invention is simple, easily operation.
Embodiment
Below in conjunction with specific embodiment, further illustrate technical scheme of the present invention.
Embodiment 1:
The fire-retardant enhancing of a kind of shock resistance PBT matrix material, its component by mass percent proportioning is: compound 0.3%, maleic anhydride graft POE 3%, the OP wax 0.7% of PBT 50%, poly-2,6-dibromo phenylene ether 15%, antimonous oxide 7.5%, acrylic acid-grafted organosilicon type LP2085 impact modifier 1.5%, alkali free glass fibre 20%, silane coupling agent 2%, phenolic antioxidant 1076 and phosphite ester kind antioxidant 168.
Preparation method: (1) weighs above-mentioned each component in proportion, prepares burden; (2) PBT is dried to 4～6 hours at 120 ℃～130 ℃, moisture control is below 0.03%, dry rear standby; (3) by the PBT after drying treatment and poly-2,6-dibromo phenylene ether, antimonous oxide, acrylic acid-grafted organosilicon type LP2085 impact modifier, phenolic antioxidant 1076 add in agitation vat with compound, maleic anhydride graft POE and the OP wax of phosphite ester kind antioxidant 168, stir it is fully mixed; (4) above-mentioned compound and alkali free glass fibre and silane coupling agent one are reinstated to twin screw extruder extruding pelletization, control screw speed is 250～350rpm, under the conveying and shearing action of twin screw extruder, through fusion plastification, mediate mixing, head is extruded, tie rod, cooling, pelletizing, dry, obtains the fire-retardant enhancing of a kind of shock resistance PBT matrix material.
Embodiment 2:
The fire-retardant enhancing of a kind of shock resistance PBT matrix material, its component by mass percent proportioning is: compound 0.2%, Low Density Polyethylene 0.5%, the EVA 0.8% of PBT 45%, poly-2,6-dibromo phenylene ether 13%, antimonous oxide 6.5%, acrylic acid-grafted organosilicon type LP2085 impact modifier 1%, alkali free glass fibre 30%, silane coupling agent 3%, phenolic antioxidant 1076 and phosphite ester kind antioxidant 168.
Preparation method: (1) weighs above-mentioned each component in proportion, prepares burden; (2) PBT is dried to 4～6 hours at 120 ℃～130 ℃, moisture control is below 0.03%, dry rear standby; (3) by the PBT after drying treatment and poly-2,6-dibromo phenylene ether, antimonous oxide, acrylic acid-grafted organosilicon type LP2085 impact modifier, phenolic antioxidant 1076 add in agitation vat with compound, Low Density Polyethylene and the EVA of phosphite ester kind antioxidant 168, stir it is fully mixed; (4) above-mentioned compound and alkali free glass fibre and silane coupling agent one are reinstated to twin screw extruder extruding pelletization, control screw speed is 250～350rpm, under the conveying and shearing action of twin screw extruder, through fusion plastification, mediate mixing, head is extruded, tie rod, cooling, pelletizing, dry, obtains the fire-retardant enhancing of a kind of shock resistance PBT matrix material.
Embodiment 3:
The fire-retardant enhancing of a kind of shock resistance PBT matrix material, its component by mass percent proportioning is: compound 0.3%, ethylene-propylene acid butyl ester-glycidyl ester terpolymer 0.8%, the calcium stearate 0.4% of PBT 60%, poly-2,6-dibromo phenylene ether 18%, antimonous oxide 9%, acrylic acid-grafted organosilicon type LP2085 impact modifier 0.5%, alkali free glass fibre 10%, silane coupling agent 1%, phenolic antioxidant 1076 and phosphite ester kind antioxidant 168.
Preparation method: (1) weighs above-mentioned each component in proportion, prepares burden; (2) PBT is dried to 4～6 hours at 120 ℃～130 ℃, moisture control is below 0.03%, dry rear standby; (3) by the PBT after drying treatment and poly-2,6-dibromo phenylene ether, antimonous oxide, acrylic acid-grafted organosilicon type LP2085 impact modifier, phenolic antioxidant 1076 add in agitation vat with compound, ethylene-propylene acid butyl ester-glycidyl ester terpolymer and the calcium stearate of phosphite ester kind antioxidant 168, stir it is fully mixed; (4) above-mentioned compound and alkali free glass fibre and silane coupling agent one are reinstated to twin screw extruder extruding pelletization, control screw speed is 250～350rpm, under the conveying and shearing action of twin screw extruder, through fusion plastification, mediate mixing, head is extruded, tie rod, cooling, pelletizing, dry, obtains the fire-retardant enhancing of a kind of shock resistance PBT matrix material.
Claims (8)
1. the fire-retardant enhancing of a shock resistance PBT matrix material, it is characterized in that, its component by mass percent proportioning is: PBT 45%～60%, aggretion type fire retardant 13%～20%, antimonous oxide 3%～10%, impact modifier 0.5%～3%, alkali free glass fibre 5%～40%, surface treatment agent 0.5%～4%, oxidation inhibitor 0.2%～0.5%, toughner 0.5%～5%, lubricant 0.1%～1%.
2. the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, is characterized in that, described aggretion type fire retardant is poly-2,6-dibromo phenylene ether.
3. the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, is characterized in that, described impact modifier is acrylic acid-grafted organosilicon type LP2085 impact modifier.
4. the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, is characterized in that, described surface treatment agent is silane coupling agent.
5. the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, is characterized in that, described oxidation inhibitor is the compound of phenolic antioxidant 1076 and phosphite ester kind antioxidant 168.
6. the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, it is characterized in that, described toughner is glycidyl methacrylate graft POE, maleic anhydride graft POE, ethene-butylacrylic acid copolymer, ethylene-propylene acid butyl ester-glycidyl ester terpolymer, Low Density Polyethylene or its interworking thing.
7. the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, is characterized in that, described lubricant is one or more of EVA, OP wax, TAF, calcium stearate.
8. the preparation method of the fire-retardant enhancing of a kind of shock resistance according to claim 1 PBT matrix material, is characterized in that, comprises the following steps:
(1) above-mentioned each component is weighed in proportion, prepared burden;
(2) PBT is dried to 4～6 hours at 120 ℃～130 ℃, moisture control is below 0.03%, dry rear standby;
(3) PBT after drying treatment and aggretion type fire retardant, antimonous oxide, impact modifier, oxidation inhibitor, toughner and lubricant are added in agitation vat, stir it is fully mixed;
(4) above-mentioned compound and alkali free glass fibre and surface treatment agent one are reinstated to twin screw extruder extruding pelletization, control screw speed is 250～350rpm, under the conveying and shearing action of twin screw extruder, through fusion plastification, mediate mixing, head is extruded, tie rod, cooling, pelletizing, dry, obtains the fire-retardant enhancing of a kind of shock resistance PBT matrix material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224271.6A CN103525032A (en) | 2012-07-02 | 2012-07-02 | Shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof |
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| CN201210224271.6A CN103525032A (en) | 2012-07-02 | 2012-07-02 | Shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105907054A (en) * | 2016-07-04 | 2016-08-31 | 安徽祈艾特电子科技股份有限公司 | High-impact-resistance polybutylene terephthalate (PBT) material having epoxy resin bonding property, and preparation method of PBT material |
| CN106147145A (en) * | 2016-06-23 | 2016-11-23 | 温州德业化工有限公司 | A kind of fire-retardant corrosion resistant PBT composite and preparation method thereof |
-
2012
- 2012-07-02 CN CN201210224271.6A patent/CN103525032A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147145A (en) * | 2016-06-23 | 2016-11-23 | 温州德业化工有限公司 | A kind of fire-retardant corrosion resistant PBT composite and preparation method thereof |
| CN106147145B (en) * | 2016-06-23 | 2018-05-18 | 温州德业化工有限公司 | A kind of fire-retardant corrosion resistant PBT composite and preparation method thereof |
| CN105907054A (en) * | 2016-07-04 | 2016-08-31 | 安徽祈艾特电子科技股份有限公司 | High-impact-resistance polybutylene terephthalate (PBT) material having epoxy resin bonding property, and preparation method of PBT material |
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Application publication date: 20140122 |