CN104845282A - High flame retardant PET/PTT alloy and preparation method thereof - Google Patents

Abstract

The invention discloses a high flame retardant PET/PTT alloy and a preparation method thereof. The high flame retardant PET/PTT alloy comprises the following components by mass: 35%-65% of PET, 15%-30% of PTT, 3%-5% of AS-g-GMA, 5%-8% of EVA, 5%-8% of a halogen-free phosphorous flame retardant, 2%-4% of a silicon flame retardant, 0.01%-0.1% of a sulfur flame retardant, 0.1%-0.5% of a molten drop resistant agent, 0.1%-0.5% of an antioxidant 1010, 0.1%-0.5% of an antioxidant 168, 0.1%-1% of PETS, and 4%-8% of nano-montmorillonite. The halogen-free phosphorous flame retardant is MCA or MPP. The high flame retardant PET/PTT alloy provided by the invention integrates the respective advantages of PET and PTT, and also has excellent flame retardance and mechanical properties, excellent processability, and simple preparation process.

Description

A kind of high flame retardant PET/PTT Alloy And Preparation Method

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of high flame retardant PET/PTT Alloy And Preparation Method.

Background technology

Polyethylene terephthalate (PET)/Poly(Trimethylene Terephthalate) (PTT) belongs to a kind of novel high molecular plastic alloy, it has the performances such as excellent forming process, shock resistance, chemical-resistant resistance, thus will have broad application prospects in automobile, electric, the field such as household electrical appliances, fiber.But the flame retardant resistance of PET/PTT self is bad, the Application Areas of high flame retardant can not be suitable for very well.

Summary of the invention

The object of the present invention is to provide the high flame retardant PET/PTT Alloy And Preparation Method of a kind of Halogen, efficient, resistance to molten drop.

The technical solution adopted for the present invention to solve the technical problems is: a kind of high flame retardant PET/PTT alloy, and its component by mass percent proportioning is: PET 35% ~ 65%, PTT 15% ~ 30%, AS-g-GMA 3% ~ 5%, EVA 5% ~ 8%, Halogen phosphorus flame retardant 5% ~ 8%, silicon-series five-retardant 2% ~ 4%, sulphur flame retardant 0.01% ~ 0.1%, refractory drops 0.1% ~ 0.5%, antioxidant 1010 0.1% ~ 0.5%, irgasfos 168 0.1% ~ 0.5%, PETS 0.1% ~ 1%, nano imvite 4% ~ 8%.

Described PET is polyethylene terephthalate.

Described PTT is Poly(Trimethylene Terephthalate).

Described AS-g-GMA is acrylonitritrile-styrene resin graft glycidyl methacrylate.

Described EVA is ethylene-vinyl acetate copolymer.

Described Halogen phosphorus flame retardant is melamine urate MCA or melamine polyphosphate MPP.

Described silicon-series five-retardant is the one in polydimethylsiloxane, PSI, polysilsesquioxane, phenyl poly organic silicon silsesquioxane-dimethylsiloxane copolymer, polyphenylethylene base organosilicon silsesquioxane.

Described sulphur flame retardant is the one in perfluorobutyl potassium, phenylbenzene sulfuryl potassium sulfonate, trimethyl fluoride sulfonyl potassium amine.

Described refractory drops is the tetrafluoroethylene of mass ratio 1:1 and the compound of polyvinylidene difluoride (PVDF).

Described PETS is lubricant pentaerythritol stearate.

The preparation method of above-mentioned a kind of high flame retardant PET/PTT alloy, comprises the following steps:

(1), by PET and PTT in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by;

(2), taking dry PTT by weight ratio adds in super mixer, and add EVA, Halogen phosphorus flame retardant, silicon-series five-retardant, sulphur flame retardant, refractory drops, antioxidant 1010, irgasfos 168, PETS by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and dry, i.e. a kind of fire-retardant toughened masterbatch based on PTT;

(3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant toughened masterbatch that step (2) obtains again, and add AS-g-GMA and nano imvite by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrude through melting mixing at 210 DEG C ~ 280 DEG C temperature, cooling granulation, drying, obtain a kind of high flame retardant PET/PTT alloy of the present invention.

The invention has the beneficial effects as follows, the present invention combines PET and PTT advantage separately, but also has excellent flame retardant properties and mechanical property, and its processibility is good, and preparation technology is simple.

Embodiment

Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.

Embodiment 1:

A kind of high flame retardant PET/PTT alloy, its component by mass percent proportioning is: PET 35%, PTT 30%, AS-g-GMA 5%, EVA 8%, MCA 8%, polydimethylsiloxane 4%, perfluorobutyl potassium 0.1%, refractory drops 0.5%, antioxidant 1010 0.1%, irgasfos 168 0.3%, PETS 1%, nano imvite 8%, and described refractory drops is the tetrafluoroethylene of mass ratio 1:1 and the compound of polyvinylidene difluoride (PVDF).

Preparation method: (1), by PET and PTT in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by; (2), taking dry PTT by weight ratio adds in super mixer, and add EVA, MCA, polydimethylsiloxane, perfluorobutyl potassium, refractory drops, antioxidant 1010 0.1%, irgasfos 168, PETS by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and dry, i.e. a kind of fire-retardant toughened masterbatch based on PTT; (3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant toughened masterbatch that step (2) obtains again, and add AS-g-GMA and nano imvite by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrude through melting mixing at 210 DEG C ~ 280 DEG C temperature, cooling granulation, drying, obtain a kind of high flame retardant PET/PTT alloy of the present invention.

Embodiment 2:

A kind of high flame retardant PET/PTT alloy, its component by mass percent proportioning is: PET 65%, PTT 15%, AS-g-GMA 3%, EVA 5%, MPP 5%, PSI 2%, phenylbenzene sulfuryl potassium sulfonate 0.1%, refractory drops 0.4%, antioxidant 1010 0.1%, irgasfos 168 0.1%, PETS 0.3%, nano imvite 4%, and described refractory drops is the tetrafluoroethylene of mass ratio 1:1 and the compound of polyvinylidene difluoride (PVDF).

Preparation method: (1), by PET and PTT in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by; (2), taking dry PTT by weight ratio adds in super mixer, and add EVA, MPP, PSI, phenylbenzene sulfuryl potassium sulfonate, refractory drops, antioxidant 1010 0.1%, irgasfos 168, PETS by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and dry, i.e. a kind of fire-retardant toughened masterbatch based on PTT; (3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant toughened masterbatch that step (2) obtains again, and add AS-g-GMA and nano imvite by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrude through melting mixing at 210 DEG C ~ 280 DEG C temperature, cooling granulation, drying, obtain a kind of high flame retardant PET/PTT alloy of the present invention.

Claims (6)

1. a high flame retardant PET/PTT alloy, it is characterized in that, its component by mass percent proportioning is: PET 35% ~ 65%, PTT 15% ~ 30%, AS-g-GMA 3% ~ 5%, EVA 5% ~ 8%, Halogen phosphorus flame retardant 5% ~ 8%, silicon-series five-retardant 2% ~ 4%, sulphur flame retardant 0.01% ~ 0.1%, refractory drops 0.1% ~ 0.5%, antioxidant 1010 0.1% ~ 0.5%, irgasfos 168 0.1% ~ 0.5%, PETS 0.1% ~ 1%, nano imvite 4% ~ 8%.

2. a kind of high flame retardant PET/PTT alloy according to claim 1, is characterized in that, described Halogen phosphorus flame retardant is MCA or MPP.

3. a kind of high flame retardant PET/PTT alloy according to claim 1, it is characterized in that, described silicon-series five-retardant is the one in polydimethylsiloxane, PSI, polysilsesquioxane, phenyl poly organic silicon silsesquioxane-dimethylsiloxane copolymer, polyphenylethylene base organosilicon silsesquioxane.

4. a kind of high flame retardant PET/PTT alloy according to claim 1, is characterized in that, described sulphur flame retardant is the one in perfluorobutyl potassium, phenylbenzene sulfuryl potassium sulfonate, trimethyl fluoride sulfonyl potassium amine.

5. a kind of high flame retardant PET/PTT alloy according to claim 1, is characterized in that, described refractory drops is the tetrafluoroethylene of mass ratio 1:1 and the compound of polyvinylidene difluoride (PVDF).

6. the preparation method of a kind of high flame retardant PET/PTT alloy according to claim 1, is characterized in that, comprise the following steps:

(1), by PET and PTT in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by;

(2), taking dry PTT by weight ratio adds in super mixer, and add EVA, Halogen phosphorus flame retardant, silicon-series five-retardant, sulphur flame retardant, refractory drops, antioxidant 1010, irgasfos 168, PETS by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and dry, i.e. a kind of fire-retardant toughened masterbatch based on PTT;

(3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant toughened masterbatch that step (2) obtains again, and add AS-g-GMA and nano imvite by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrude through melting mixing at 210 DEG C ~ 280 DEG C temperature, cooling granulation, drying, obtain a kind of high flame retardant PET/PTT alloy of the present invention.