CN104845148A - Halogen-free flame-retardant anti-aging PET/PTT alloy and preparation method thereof - Google Patents

Abstract

The present invention discloses a halogen-free flame-retardant anti-aging PET/PTT alloy and a preparation method thereof. The halogen-free flame-retardant anti-aging PET/PTT alloy is prepared from the following components by mass percentage: 30%-56% of PET, 20%-30% of PTT, 2%-4% of a compatilizer, 6%-10% of a halogen-free flame retardant, 2%-4% of a flame retardant synergist, 5%-10% of modified wollastonite, 5%-8% of POE, 0.5%-2% of an anti-aging agent, 0.5%-1% of a nucleating agent, 0.1%-0.5% of an antioxidant and 0.1%-1% of a lubricant. The halogen-free flame-retardant anti-aging PET/PTT alloy has the following beneficial effects that the halogen-free flame-retardant anti-aging PET/PTT alloy has the respective characteristics of PET and PTT; the halogen-free flame-retardant anti-aging PET/PTT alloy has excellent properties of being halogen-free flame retardant and being anti-aging, and the halogen-free flame retardant property meets requirements of zero halogen, low smoke, efficiency and a UL90V-0 level; and the halogen-free flame-retardant anti-aging PET/PTT alloy has characteristics of having good mechanical property, and being excellent in heat resistance, low in cost and wide in adaptability.

Description

Halogen-free flameproof anti-aging PET/PTT Alloy And Preparation Method

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of halogen-free flameproof anti-aging PET/PTT Alloy And Preparation Method.

Background technology

PET(polyethylene terephthalate)/PTT(Poly(Trimethylene Terephthalate)) be a kind of novel polyblend, it has the premium propertiess such as excellent forming process, shock resistance, high temperature heat-resistant are aging, chemical-resistant resistance, thus has a good application prospect in automobile, electric, the field such as household electrical appliances, fiber.But there is poor fire, mechanical strength is unstable, ageing-resistant performance is bad problem in the PET/PTT of non-modified, this will greatly limit its effect and Application Areas.In order to improve performance, often needing to add three components again in PET/PTT, being intended to the effect and the Application Areas that promote PET/PTT alloy.

Summary of the invention

The object of the present invention is to provide a kind of halogen-free flameproof anti-aging PET/PTT Alloy And Preparation Method.

The technical solution adopted for the present invention to solve the technical problems is: halogen-free flameproof anti-aging PET/PTT alloy, and its component by mass percent proportioning is: PET 30% ~ 56%, PTT 20% ~ 30%, compatilizer 2% ~ 4%, halogen-free flame retardants 6% ~ 10%, fire retarding synergist 2% ~ 4%, modified grammite 5% ~ 10%, POE 5% ~ 8%, antiager 0.5% ~ 2%, nucleator 0.5% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

The polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g.

Described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 0.9dL/g.

Described compatilizer is the one in styrene-grafted copolymer-maleic anhydride SMA, styrene-acrylonitrile-methacrylic sour water glyceryl ester SAG, methyl methacrylate-glycidyl methacrylate-ethyl propenoate ter-polymers MGE, acrylonitritrile-styrene resin graft glycidyl methacrylate AS-g-GMA.

Described halogen-free flame retardants is the Halogen phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 4:1 and the compound of silicon-series five-retardant polydimethylsiloxane.

Described fire retarding synergist is the one in antimonous oxide, antimony peroxide, sodium antimoniate.

Described modified grammite be surface through silane coupler modified process and diameter 3 ~ 30 μm, length is at 10 ~ 500 μm and the fibrous wollastonite of length-to-diameter ratio in 3 ~ 100 scopes.

Described POE is elastomeric ethylene-octene copolymer.

Described antiager is the tertiary base phenyl of 2-(2-hydroxyl-3,5-bis-fourth)-5-chlorinated benzotriazole, 2-hydroxyl-4 n-octyloxies-benzophenone, poly-{ [6-(1,1,3,3-tetramethyl butyl)-imino-]-1,3,5-triazine-2,4-bis-base [2-(2,2,6,6-tetramethyl-piperidyl)-secondary amino]-hexa-methylene-[4-(2,2,6,6-tetramethyl-piperidyl)-secondary amino], poly-(1-hydroxyethyl-2,2,6,6-tetramethyl--4-hydroxy piperidine) one in succinate.

Described nucleator is the one in talcum powder, nano silicon, nano imvite, sodium bicarbonate, Sodium Benzoate.

Described oxidation inhibitor is the one in the compound of antioxidant 1010, antioxidant 1076, antioxidant 1010 or antioxidant 1076 and irgasfos 168.

Described lubricant is pentaerythritol stearate.

The preparation method of above-mentioned halogen-free flameproof anti-aging 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 halogen-free flame retardants, fire retarding synergist, antiager, oxidation inhibitor, lubricant 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, obtains a kind of PTT halogen-free flameproof anti-aging mother material;

(3), taking dry PET by weight ratio adds in super mixer, add the PTT halogen-free flameproof anti-aging mother material that step (2) obtains again, and add compatilizer, modified grammite, POE, nucleator by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrudes, cooling granulation at 210 DEG C ~ 280 DEG C after melt blending, then dry, obtain halogen-free flameproof anti-aging PET/PTT alloy of the present invention.

The invention has the beneficial effects as follows, the present invention have PET, PTT separately former advantageous while, also there is excellent halogen-free flameproof and anti ageing property, its flame retardant properties meets the requirement of Halogen, low cigarette, efficient and UL94 V-0 level, and mechanical property is good, fine heat-resisting performance, cost is low, wide adaptability.

Embodiment

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

Embodiment 1:

A kind of halogen-free flameproof anti-aging PET/PTT alloy, its component by mass percent proportioning is: PET 56%, PTT 20%, SMA 3%, halogen-free flame retardants 6%, antimonous oxide 2%, modified grammite 5%, POE 5%, 2-(2-hydroxyl-3, the tertiary base phenyl of 5-bis-fourth)-5-chlorinated benzotriazole 1.5%, nano silicon 1%, antioxidant 1010 0.1%, pentaerythritol stearate 0.4%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 0.9dL/g, described halogen-free flame retardants is the Halogen phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 4:1 and the compound of silicon-series five-retardant polydimethylsiloxane, described modified grammite is that surface is through silane coupler modified process, and diameter is at 3 ~ 30 μm, length is at 10 ~ 500 μm and the fibrous wollastonite of length-to-diameter ratio in 3 ~ 100 scopes.

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 halogen-free flame retardants, antimonous oxide, 2-(2-hydroxyl-3 by weight ratio, the tertiary base phenyl of 5-bis-fourth)-5-chlorinated benzotriazole, antioxidant 1010, pentaerythritol stearate, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and dry, obtains a kind of PTT halogen-free flameproof anti-aging mother material; (3), taking dry PET by weight ratio adds in super mixer, add the PTT halogen-free flameproof anti-aging mother material that step (2) obtains again, and add SMA, modified grammite, POE, nano silicon by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrudes, cooling granulation at 210 DEG C ~ 280 DEG C after melt blending, then dry, obtain halogen-free flameproof anti-aging PET/PTT alloy of the present invention.

Embodiment 2:

A kind of halogen-free flameproof anti-aging PET/PTT alloy, its component by mass percent proportioning is: PET 30%, PTT 30%, SAG 4%, halogen-free flame retardants 10%, antimony peroxide 4%, modified grammite 10%, POE 8%, 2-hydroxyl-4 n-octyloxies-benzophenone 2%, Sodium Benzoate 1%, the compound 0.5% of antioxidant 1076 and irgasfos 168, pentaerythritol stearate 0.5%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 0.9dL/g, described halogen-free flame retardants is the Halogen phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 4:1 and the compound of silicon-series five-retardant polydimethylsiloxane, described modified grammite is that surface is through silane coupler modified process, and diameter is at 3 ~ 30 μm, length is at 10 ~ 500 μm and the fibrous wollastonite of length-to-diameter ratio in 3 ~ 100 scopes.

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 compound, the pentaerythritol stearate of halogen-free flame retardants, antimony peroxide, 2-hydroxyl-4 n-octyloxies-benzophenone, antioxidant 1076 and irgasfos 168 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, obtains a kind of PTT halogen-free flameproof anti-aging mother material; (3), taking dry PET by weight ratio adds in super mixer, add the PTT halogen-free flameproof anti-aging mother material that step (2) obtains again, and add SAG, modified grammite, POE, Sodium Benzoate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrudes, cooling granulation at 210 DEG C ~ 280 DEG C after melt blending, then dry, obtain halogen-free flameproof anti-aging PET/PTT alloy of the present invention.

Claims (10)

1. a halogen-free flameproof anti-aging PET/PTT alloy, it is characterized in that, its component by mass percent proportioning is: PET 30% ~ 56%, PTT 20% ~ 30%, compatilizer 2% ~ 4%, halogen-free flame retardants 6% ~ 10%, fire retarding synergist 2% ~ 4%, modified grammite 5% ~ 10%, POE 5% ~ 8%, antiager 0.5% ~ 2%, nucleator 0.5% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described compatilizer is the one in SMA, SAG, MGE, AS-g-GMA.

3. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, is characterized in that, described halogen-free flame retardants is the Halogen phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 4:1 and the compound of silicon-series five-retardant polydimethylsiloxane.

4. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described fire retarding synergist is the one in antimonous oxide, antimony peroxide, sodium antimoniate.

5. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described modified grammite be surface through silane coupler modified process and diameter 3 ~ 30 μm, length is at 10 ~ 500 μm and the fibrous wollastonite of length-to-diameter ratio in 3 ~ 100 scopes.

6. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described antiager is 2-(2-hydroxyl-3, the tertiary base phenyl of 5-bis-fourth)-5-chlorinated benzotriazole, 2-hydroxyl-4 n-octyloxies-benzophenone, poly-{ [6-(1, 1, 3, 3-tetramethyl butyl)-imino-]-1, 3, 5-triazine-2, 4-bis-base [2-(2, 2, 6, 6-tetramethyl-piperidyl)-secondary amino]-hexa-methylene-[4-(2, 2, 6, 6-tetramethyl-piperidyl)-secondary amino], poly-(1-hydroxyethyl-2, 2, 6, 6-tetramethyl--4-hydroxy piperidine) one in succinate.

7. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described nucleator is the one in talcum powder, nano silicon, nano imvite, sodium bicarbonate, Sodium Benzoate.

8. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described oxidation inhibitor is the one in the compound of antioxidant 1010, antioxidant 1076, antioxidant 1010 or antioxidant 1076 and irgasfos 168.

9. halogen-free flameproof anti-aging PET/PTT alloy according to claim 1, it is characterized in that, described lubricant is pentaerythritol stearate.

10. the preparation method of halogen-free flameproof anti-aging 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 halogen-free flame retardants, fire retarding synergist, antiager, oxidation inhibitor, lubricant 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, obtains a kind of PTT halogen-free flameproof anti-aging mother material;

(3), taking dry PET by weight ratio adds in super mixer, add the PTT halogen-free flameproof anti-aging mother material that step (2) obtains again, and add compatilizer, modified grammite, POE, nucleator by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrudes, cooling granulation at 210 DEG C ~ 280 DEG C after melt blending, then dry, obtain halogen-free flameproof anti-aging PET/PTT alloy of the present invention.