CN104419133A - High-flame-retardancy and environment-friendly PBT/PET alloy with high CTI value - Google Patents
High-flame-retardancy and environment-friendly PBT/PET alloy with high CTI value Download PDFInfo
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- CN104419133A CN104419133A CN201310397022.1A CN201310397022A CN104419133A CN 104419133 A CN104419133 A CN 104419133A CN 201310397022 A CN201310397022 A CN 201310397022A CN 104419133 A CN104419133 A CN 104419133A
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Abstract
The invention discloses a high-flame-retardancy and environment-friendly PBT/PET alloy with high CTI value. The high-flame-retardancy and environment-friendly PBT/PET alloy is prepared from the following components in percentage by weight: 20-70 percent of PBT, 20-70 percent of PET, 8-15 percent of red phosphorus masterbatch, 5-10 percent of magnesium hydroxide, 0.5-2 percent of surface modifier, 0.1-1.5 percent of nucleating agent, 0.1-1 percent of antioxidant, 0.1-1 percent of dispersant and 0-1 percent of pigment. The high-flame-retardancy and environment-friendly PBT/PET alloy has the beneficial effects that the high-flame-retardancy and environment-friendly PBT/PET alloy has the advantages of both the PBT and the PET and is also excellent in comprehensive properties. In addition, with the application of synergistic flame-retarding function of the red phosphorus masterbatch and the magnesium hydroxide, the PBT/PET alloy system is excellent in flame retardancy, is low in the smoke without toxins, is small in additive amount, achieves a UL-94V-0 flame retardant level, also keeps good mechanical property and processability, is capable of greatly increasing the CTI value and can be widely applied to the field of electron, automobiles, office furniture, household appliances and the like.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy.
Background technology
Polybutylene terephthalate (PBT) is that 20 century 70s obtain a kind of model engineering plastic developed rapidly, its general mechanical property is all better than polyethylene terephthalate (PET), and there is good toughness, mouldable shaping, but its mobility, thermotolerance is all not as PET, and price is higher.PET and PBT chemical structure is similar, and therefore, consistency is fine, and can learn from other's strong points to offset one's weaknesses after both are blended, the shock strength of products obtained therefrom is high and cost is lower.But the flame retardant resistance of PBT/PET alloy is bad, also has that heat-drawn wire is low, shrinking percentage large simultaneously, to shortcomings such as notch sensitive, the index of resistance to tracking (CTI) are low, significantly limit the application of PBT/PET alloy.
Summary of the invention
The object of the present invention is to provide a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy, its component by mass percent proportioning is: PBT 20% ~ 70%, PET 20% ~ 70%, red phosphor masterbatch 8% ~ 15%, magnesium hydroxide 5% ~ 10%, surface-modifying agent 0.5% ~ 2%, nucleator 0.1% ~ 1.5%, oxidation inhibitor 0.1% ~ 1%, dispersion agent 0.1% ~ 1%, colorant 0 ~ 1%.
Described PBT is polybutylene terephthalate.
Described PET is polyethylene terephthalate, and its relative density is 1.35 ~ 1.38 g/cm
3, fusing point 255 DEG C ~ 260 DEG C, melt viscosity 0.7 ~ 1.1dL/g.
Described red phosphor masterbatch is made up of 20wt% terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, 50wt% microencapsulated powder oil, 25wt% zinc borate and 5wt% silane coupling agent and obtained red phosphor masterbatch.
Described magnesium hydroxide is the magnesium hydroxide of particle diameter between 0.1 ~ 2 μm.
Described surface-modifying agent is aluminium titanium composite coupler.
Described nucleator is the one in talcum powder, benzophenone, polyoxyethylene glycol.
Described oxidation inhibitor is the compound of hindered phenol antioxygen 1076 and phosphite ester kind antioxidant 168.
Described dispersion agent is the one in calcium stearate, Magnesium Stearate, pentaerythritol ester, ethylene bis stearic amide.
The preparation method of above-mentioned a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy, comprises the following steps:
(1) by PBT at 130 DEG C ~ 140 DEG C dry 3 ~ 5 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by;
(2) red phosphor masterbatch is prepared: take terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, microencapsulated powder oil, zinc borate and silane coupling agent by weight ratio, add in super mixer, make fully to mix, extrude through twin screw extruder melting mixing again, cool, pelletizing, obtained described red phosphor masterbatch after drying, stand-by;
(3) magnesium hydroxide and surface-modifying agent is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 10 ~ 60 minutes at 100 DEG C ~ 120 DEG C temperature, obtain the magnesium hydroxide of surface modification, then be cooled to lower than 40 DEG C of dischargings, stand-by;
(4) dry PBT and PET is taken by weight ratio, add in high-speed mixer, mix 2 ~ 5 minutes, add the red phosphor masterbatch, the magnesium hydroxide of surface modification, nucleator, oxidation inhibitor, dispersion agent and the colorant that take by weight ratio again, continue mixing 5 ~ 15 minutes, make fully to mix rear discharging;
(5) add in twin screw extruder by the compound of step (4), at 210 DEG C ~ 260 DEG C, through plastifying, mixing is extruded, cooling granulation, obtains a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy of the present invention.
The invention has the beneficial effects as follows, compared with prior art, the PBT/PET alloy that the present invention obtains not only well has had both PBT and PET advantage separately, there is excellent over-all properties, and the cooperative flame retardant effect of application red phosphor masterbatch and magnesium hydroxide, PBT/PET alloy system is made to have excellent flame retardant properties and low cigarette, nontoxic, addition is few and reach UL-94 V-0 flame retardant rating, keep good mechanical property and processing characteristics simultaneously, and substantially increase CTI value (index of resistance to tracking), electronics can be widely used in, automobile, office furniture, the fields such as household electrical appliance.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1:
A kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy, its component by mass percent proportioning is: compound 0.9%, calcium stearate 1%, the colorant 0.6% of PBT 50%, PET 25%, red phosphor masterbatch 10%, the particle diameter magnesium hydroxide 10% between 0.1 ~ 2 μm, aluminium titanium composite coupler 1.5%, benzophenone 1%, hindered phenol antioxygen 1076 and phosphite ester kind antioxidant 168.Wherein, described PBT is polybutylene terephthalate; Described PET is polyethylene terephthalate, and its relative density is 1.35 ~ 1.38 g/cm
3, fusing point 255 DEG C ~ 260 DEG C, melt viscosity 0.7 ~ 1.1dL/g; Described red phosphor masterbatch is made up of 20wt% terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, 50wt% microencapsulated powder oil, 25wt% zinc borate and 5wt% silane coupling agent and obtained red phosphor masterbatch.
Preparation method: (1) is by PBT at 130 DEG C ~ 140 DEG C dry 3 ~ 5 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by; (2) red phosphor masterbatch is prepared: take terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, microencapsulated powder oil, zinc borate and silane coupling agent by weight ratio, add in super mixer, make fully to mix, extrude through twin screw extruder melting mixing again, cool, pelletizing, obtained described red phosphor masterbatch after drying, stand-by; (3) magnesium hydroxide of particle diameter between 0.1 ~ 2 μm and aluminium titanium composite coupler is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 10 ~ 60 minutes at 100 DEG C ~ 120 DEG C temperature, obtain the magnesium hydroxide of surface modification, then be cooled to lower than 40 DEG C of dischargings, stand-by; (4) dry PBT and PET is taken by weight ratio, add in high-speed mixer, mix 2 ~ 5 minutes, add the red phosphor masterbatch, the magnesium hydroxide of surface modification, benzophenone, the compound of hindered phenol antioxygen 1076 and phosphite ester kind antioxidant 168, calcium stearate and the colorant that take by weight ratio again, continue mixing 5 ~ 15 minutes, make fully to mix rear discharging; (5) add in twin screw extruder by the compound of step (4), at 210 DEG C ~ 260 DEG C, through plastifying, mixing is extruded, cooling granulation, obtains a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy of the present invention.
Embodiment 2:
A kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy, its component by mass percent proportioning is: compound 1%, ethylene bis stearic amide 1%, the colorant 0.8% of PBT 40%, PET 40%, red phosphor masterbatch 10%, the particle diameter magnesium hydroxide 5% between 0.1 ~ 2 μm, aluminium titanium composite coupler 1%, polyoxyethylene glycol 1.2%, hindered phenol antioxygen 1076 and phosphite ester kind antioxidant 168.Wherein, described PBT is polybutylene terephthalate; Described PET is polyethylene terephthalate, and its relative density is 1.35 ~ 1.38 g/cm
3, fusing point 255 DEG C ~ 260 DEG C, melt viscosity 0.7 ~ 1.1dL/g; Described red phosphor masterbatch is made up of 20wt% terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, 50wt% microencapsulated powder oil, 25wt% zinc borate and 5wt% silane coupling agent and obtained red phosphor masterbatch.
Preparation method: (1) is by PBT at 130 DEG C ~ 140 DEG C dry 3 ~ 5 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by; (2) red phosphor masterbatch is prepared: take terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, microencapsulated powder oil, zinc borate and silane coupling agent by weight ratio, add in super mixer, make fully to mix, extrude through twin screw extruder melting mixing again, cool, pelletizing, obtained described red phosphor masterbatch after drying, stand-by; (3) magnesium hydroxide of particle diameter between 0.1 ~ 2 μm and aluminium titanium composite coupler is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 10 ~ 60 minutes at 100 DEG C ~ 120 DEG C temperature, obtain the magnesium hydroxide of surface modification, then be cooled to lower than 40 DEG C of dischargings, stand-by; (4) dry PBT and PET is taken by weight ratio, add in high-speed mixer, mix 2 ~ 5 minutes, add the red phosphor masterbatch, the magnesium hydroxide of surface modification, polyoxyethylene glycol, the compound of hindered phenol antioxygen 1076 and phosphite ester kind antioxidant 168, ethylene bis stearic amide and the colorant that take by weight ratio again, continue mixing 5 ~ 15 minutes, make fully to mix rear discharging; (5) add in twin screw extruder by the compound of step (4), at 210 DEG C ~ 260 DEG C, through plastifying, mixing is extruded, cooling granulation, obtains a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy of the present invention.
Claims (10)
1. a high CTI value high-flame-resistance environment-friendly PBT/PET alloy, it is characterized in that, its component by mass percent proportioning is: PBT 20% ~ 70%, PET 20% ~ 70%, red phosphor masterbatch 8% ~ 15%, magnesium hydroxide 5% ~ 10%, surface-modifying agent 0.5% ~ 2%, nucleator 0.1% ~ 1.5%, oxidation inhibitor 0.1% ~ 1%, dispersion agent 0.1% ~ 1%, colorant 0 ~ 1%.
2. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described PBT is polybutylene terephthalate.
3. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described PET is polyethylene terephthalate, and its relative density is 1.35 ~ 1.38 g/cm
3, fusing point 255 DEG C ~ 260 DEG C, melt viscosity 0.7 ~ 1.1dL/g.
4. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described red phosphor masterbatch is made up of 20wt% terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, 50wt% microencapsulated powder oil, 25wt% zinc borate and 5wt% silane coupling agent and obtained red phosphor masterbatch.
5. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described magnesium hydroxide is the magnesium hydroxide of particle diameter between 0.1 ~ 2 μm.
6. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described surface-modifying agent is aluminium titanium composite coupler.
7. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described nucleator is the one in talcum powder, benzophenone, polyoxyethylene glycol.
8. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, is characterized in that, described oxidation inhibitor is the compound of hindered phenol antioxygen 1076 and phosphite ester kind antioxidant 168.
9. a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, it is characterized in that, described dispersion agent is the one in calcium stearate, Magnesium Stearate, pentaerythritol ester, ethylene bis stearic amide.
10. the preparation method of a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy according to claim 1, is characterized in that, comprise the following steps:
(1) by PBT at 130 DEG C ~ 140 DEG C dry 3 ~ 5 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by;
(2) red phosphor masterbatch is prepared: take terephthalic acid binary alcohol esters-m-phthalic acid binary alcohol esters-terephthaldehyde's acid polyol ester terpolymer, microencapsulated powder oil, zinc borate and silane coupling agent by weight ratio, add in super mixer, make fully to mix, extrude through twin screw extruder melting mixing again, cool, pelletizing, obtained described red phosphor masterbatch after drying, stand-by;
(3) magnesium hydroxide and surface-modifying agent is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 10 ~ 60 minutes at 100 DEG C ~ 120 DEG C temperature, obtain the magnesium hydroxide of surface modification, then be cooled to lower than 40 DEG C of dischargings, stand-by;
(4) dry PBT and PET is taken by weight ratio, add in high-speed mixer, mix 2 ~ 5 minutes, add the red phosphor masterbatch, the magnesium hydroxide of surface modification, nucleator, oxidation inhibitor, dispersion agent and the colorant that take by weight ratio again, continue mixing 5 ~ 15 minutes, make fully to mix rear discharging;
(5) add in twin screw extruder by the compound of step (4), at 210 DEG C ~ 260 DEG C, through plastifying, mixing is extruded, cooling granulation, obtains a kind of high CTI value high-flame-resistance environment-friendly PBT/PET alloy of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310397022.1A CN104419133A (en) | 2013-09-05 | 2013-09-05 | High-flame-retardancy and environment-friendly PBT/PET alloy with high CTI value |
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| CN201310397022.1A CN104419133A (en) | 2013-09-05 | 2013-09-05 | High-flame-retardancy and environment-friendly PBT/PET alloy with high CTI value |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467574A (en) * | 2018-02-28 | 2018-08-31 | 东莞市基烁实业有限公司 | A kind of transparent flame-retarding master batch and PET film and preparation method |
| CN115895203A (en) * | 2022-10-27 | 2023-04-04 | 河南天海合聚新材料有限公司 | PBT/PET alloy material with high GWIT and preparation method thereof |
-
2013
- 2013-09-05 CN CN201310397022.1A patent/CN104419133A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467574A (en) * | 2018-02-28 | 2018-08-31 | 东莞市基烁实业有限公司 | A kind of transparent flame-retarding master batch and PET film and preparation method |
| CN108467574B (en) * | 2018-02-28 | 2020-07-10 | 东莞市基烁实业有限公司 | Transparent flame-retardant master batch, PET (polyethylene terephthalate) film and preparation method |
| CN115895203A (en) * | 2022-10-27 | 2023-04-04 | 河南天海合聚新材料有限公司 | PBT/PET alloy material with high GWIT and preparation method thereof |
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Application publication date: 20150318 |