CN104845127A - Halogen-free flame-retardant modified PET/PTT/TPEE composite material - Google Patents

Abstract

The invention discloses a halogen-free flame-retardant modified PET/PTT/TPEE composite material. The material comprises the following components by weight: 30% to 63% of PET, 20% to 30% of PTT, 5% to 15% of TPEE, 6% to 10% of a halogen-free flame retardant, 2% to 8% of nanometer montmorillonite, 2% to 4% of a compatibilizing agent, 0.5% to 2% of a light stabilizer, 0.1% to 0.5% of an antioxidant 1010, 0.1% to 0.5% of an antioxidant 168 and 0.1% to 1% of pentaerythritol stearate, wherein the halogen-free flame retardant is a compound of polysulfonyldiphenylene phenyl phosphonate and solydimethyl siloxane with a mass ratio of 3: 1. The invention has the following beneficial effects: the halogen-free flame-retardant modified PET/PTT/TPEE composite material integrates respective advantages of PET, PTT and TPEE, has exellent flame-retardant property, meets the flame-retardant requirements of no halogen, environmental protection and a rating of UL94V-0 and maintains good mechanical performance.

Description

A kind of halogen-free flameproof modified PET/PTT/TPEE matrix material

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material.

Background technology

Polyethylene terephthalate (PET) a kind ofly has higher melt temperature and the crystalline polymer of second-order transition temperature, excellent physicals and mechanical property is kept in certain temperature range, its resistance to fatigue, rub resistance, ageing resistance, electrical insulating property feature are very outstanding, to most of organic solvent and acid more stable, production energy consumption is lower, is thus widely used in the fields such as synthon, film and engineering plastics; But because PET rigidity is comparatively forced toughness of material is poor, crystallization velocity is comparatively slow, the shortcomings such as the high and shaping cycle of forming mould temperature is long, greatly limit its range of application.Poly(Trimethylene Terephthalate) (PTT) is that a kind of crystallization velocity is fast, happy and harmonious temperature and the lower crystalline polymer of second-order transition temperature, there is excellent especially flexibility, elastic recovery, the stability feature of processing characteristics, electric property, mechanical property and size; But the defects such as the thermotolerance of PTT is bad, dimensional stability is not high, poor fire, will limit its application.Polyether ester (TPEE) is polybutylene terephthalate-polyethylene oxide-poly(propylene oxide) thermoplastic elastomer, be the segmented copolymer obtained by copolycondensation by dimethyl terephthalate (DMT), butyleneglycol, polyethylene oxide glycol and/or polypropylene oxide glycol, there is good snappiness and mechanical property.By the PET/PTT/TPEE matrix material of blended to PET, PTT and TPEE preparation, can the advantage of comprehensive three well, realize the inaccessiable over-all properties of single variety, by having the performances such as excellent forming process, shock resistance, high temperature heat-resistant are aging, chemical-resistant resistance, thus there is good practical value and application prospect.But the flame retardant resistance of PET/PTT/TPEE self is bad, the Application Areas of high flame retardant can not be suitable for, therefore PET/PTT/TPEE matrix material be carried out flame-retardant modified necessary, be intended to promote its flame retardant properties and expansive approach field.

Summary of the invention

The object of the present invention is to provide a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material with excellent fire-retardancy and ageing-resistant performance.

The technical solution adopted for the present invention to solve the technical problems is: a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material, and its component by mass percent proportioning is: PET 30% ~ 63%, PTT 20% ~ 30%, TPEE 5% ~ 15%, halogen-free flame retardants 6% ~ 10%, nano imvite 2% ~ 8%, compatilizer 2% ~ 4%, photostabilizer 0.5% ~ 2%, antioxidant 1010 0.1% ~ 0.5%, irgasfos 168 0.1% ~ 0.5%, pentaerythritol stearate 0.1% ~ 1%.

Described PET is polyethylene terephthalate.

Described PTT is Poly(Trimethylene Terephthalate).

Described TPEE is polybutylene terephthalate-polyethylene oxide-poly(propylene oxide) triblock copolymer.

Described halogen-free flame retardants is the phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 3:1 and the compound of silicon-series five-retardant polydimethylsiloxane.

Described nano imvite be surface through silane coupling agent activation treatment and particle diameter at the sodium-based montmorillonite powder of 25nm ~ 75nm.

Described compatilizer is acrylonitritrile-styrene resin graft glycidyl methacrylate.

Described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1.

The preparation method of above-mentioned a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material, 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, nano imvite, photostabilizer, antioxidant 1010, irgasfos 168, pentaerythritol stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch;

(3), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add TPEE and compatilizer 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 a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material of the present invention.

The invention has the beneficial effects as follows, the present invention combines PET, PTT and TPEE advantage separately, also has excellent flame retardant properties, and meet the flame-retardancy requirements of Halogen, environmental protection and UL94 V-0 grade, and maintain good mechanical property, processibility might as well, heat-resisting, chemical resistance is excellent.

Embodiment

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

Embodiment 1:

A kind of halogen-free flameproof modified PET/PTT/TPEE matrix material, its component by mass percent proportioning is: PET 30%, PTT 30%, TPEE 15%, halogen-free flame retardants 10%, nano imvite 8%, acrylonitritrile-styrene resin graft glycidyl methacrylate 4%, photostabilizer 2%, antioxidant 1010 0.1%, irgasfos 168 0.2%, pentaerythritol stearate 0.7%, described halogen-free flame retardants is the phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 3:1 and the compound of silicon-series five-retardant polydimethylsiloxane, described nano imvite is that surface is through silane coupling agent activation treatment, and particle diameter is at the sodium-based montmorillonite powder of 25nm ~ 75nm, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1.

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, nano imvite, photostabilizer, antioxidant 1010, irgasfos 168, pentaerythritol stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch; (3), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add TPEE and acrylonitritrile-styrene resin graft glycidyl methacrylate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, extrude after melt blending at 210 DEG C ~ 280 DEG C, cooling granulation, then dry, obtain a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material of the present invention.

Embodiment 2:

A kind of halogen-free flameproof modified PET/PTT/TPEE matrix material, its component by mass percent proportioning is: PET 63%, PTT 20%, TPEE 5%, halogen-free flame retardants 6%, nano imvite 2%, acrylonitritrile-styrene resin graft glycidyl methacrylate 3%, photostabilizer 0.5%, antioxidant 1010 0.1%, irgasfos 168 0.1%, pentaerythritol stearate 0.3%, described halogen-free flame retardants is the phosphorus flame retardant polyphenylene phosphonic acids sulfobenzide ester of mass ratio 3:1 and the compound of silicon-series five-retardant polydimethylsiloxane, described nano imvite is that surface is through silane coupling agent activation treatment, and particle diameter is at the sodium-based montmorillonite powder of 25nm ~ 75nm, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1.

Preparation method is with embodiment 1.

Claims (6)

1. halogen-free flameproof modified PET/PTT/TPEE matrix material, it is characterized in that, its component by mass percent proportioning is: PET 30% ~ 63%, PTT 20% ~ 30%, TPEE 5% ~ 15%, halogen-free flame retardants 6% ~ 10%, nano imvite 2% ~ 8%, compatilizer 2% ~ 4%, photostabilizer 0.5% ~ 2%, antioxidant 1010 0.1% ~ 0.5%, irgasfos 168 0.1% ~ 0.5%, pentaerythritol stearate 0.1% ~ 1%.

2. a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material according to claim 1, is characterized in that, described halogen-free flame retardants is the polyphenylene phosphonic acids sulfobenzide ester of mass ratio 3:1 and the compound of polydimethylsiloxane.

3. a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material according to claim 1, is characterized in that, described nano imvite be surface through silane coupling agent activation treatment and particle diameter at the sodium-based montmorillonite powder of 25nm ~ 75nm.

4. a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material according to claim 1, it is characterized in that, described compatilizer is acrylonitritrile-styrene resin graft glycidyl methacrylate.

5. a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material according to claim 1, is characterized in that, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1.

6. the preparation method of a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material 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, nano imvite, photostabilizer, antioxidant 1010, irgasfos 168, pentaerythritol stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch;

(3), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add TPEE and compatilizer 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 a kind of halogen-free flameproof modified PET/PTT/TPEE matrix material of the present invention.