CN104845196A - High-impact modified PET/PTT alloy material - Google Patents

Abstract

The present invention discloses a high-impact modified PET/PTT alloy material, which comprises the following components in mass percentage: 35-60% of PET, 20-30% of PTT, 2-5% of PTW, 5-15% of ACR, 8-12% of glass fibers, 0.5-2% of light stabilizer, 0.1-1% of nucleating agent, 0.1-0.5% of antioxidant, and 0.1-1% of TAF. According to the technical scheme of the invention, the original advantages of PET and PTT materials are kept, while the alloy material is excellent in impact resistance, high in strength, good in heat resistance and dimensional stability, strong in anti-aging performance and low in cost. Therefore, the alloy material is suitable for industrial production and deployment.

Description

A kind of high impact modified PET/PTT alloy material

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of high impact modified PET/PTT alloy material.

Background technology

PET(polyethylene terephthalate)/PTT(Poly(Trimethylene Terephthalate)) be a kind of novel polyblend, there is excellent over-all properties, and be with a wide range of applications in fields such as automobile, electric, fibers.But there is the defects such as notched Izod impact strength is low, notch sensitivity is large, mechanical property is unstable in the PET/PTT of non-modified, this will greatly limit its range of application.

Summary of the invention

The object of the present invention is to provide the high impact modified PET/PTT alloy material that a kind of mechanical property is good, cost is low.

The technical solution adopted for the present invention to solve the technical problems is: a kind of high impact modified PET/PTT alloy material, and its component by mass percent proportioning is: PET 35% ~ 60%, PTT 20% ~ 30%, PTW 2% ~ 5%, ACR 5% ~ 15%, glass fibre 8% ~ 12%, photostabilizer 0.5% ~ 2%, nucleator 0.1% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, TAF 0.1% ~ 1%.

The polyethylene terephthalate of described PET to be intrinsic viscosity be 0.6 ~ 1.2dL/g.

Described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.2dL/g.

Described PTW is Ethylene-butyl Acrylate-methacrylic Acid Glycerin Ester Copolymer, and the content of glycidyl methacrylate copolymer accounts for 3 wt% ~ 8 wt%.

Described ACR is the Methylacrylate-Acrylate Copolymer with nucleocapsid structure.

Described glass fibre is the alkali-free short glass fiber of surface through silane coupling agent process.

Described photostabilizer is ESCALOL 567 or Octabenzone.

Described nucleator is the nano silicon of mass ratio 2:1 and the compound of Sodium Benzoate.

Described oxidation inhibitor is the Hinered phenols antioxidant 1010 or 1076 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.

Described TAF is modification ethylene bis-fatty acid amides.

The preparation method of above-mentioned a kind of high impact modified PET/PTT alloy 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, add ACR, photostabilizer, oxidation inhibitor, TAF by weight ratio simultaneously, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging add twin screw extruder melt extrude pelletizing and dry after stand-by;

(3), taking dry PET by weight ratio adds in super mixer, add the product that step (2) obtains again, and add PTW and nucleator by weight ratio, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging adds the main spout of twin screw extruder, add glass fibre by weight ratio from the side spout of twin screw extruder simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtain the high impact modified PET/PTT alloy material of one of the present invention.

The invention has the beneficial effects as follows, the present invention has PET, PTT original advantage separately, also have excellent shock resistance, high intensity, excellent thermotolerance and dimensional stability etc., and ageing-resistant performance is strong, cost is low, is suitable for suitability for industrialized production and applies.

Embodiment

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

Embodiment 1:

A kind of high impact modified PET/PTT alloy material, its component by mass percent proportioning is: PET 55%, PTT 20%, PTW 3%, ACR 10%, glass fibre 8%, ESCALOL 567 2%, nucleator 1%, oxidation inhibitor 0.2%, TAF 0.8%, described glass fibre is the alkali-free short glass fiber of surface through silane coupling agent process, described nucleator is the nano silicon of mass ratio 2:1 and the compound of Sodium Benzoate, and described oxidation inhibitor is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.

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, add ACR, ESCALOL 567, oxidation inhibitor, TAF by weight ratio simultaneously, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging add twin screw extruder melt extrude pelletizing and dry after stand-by, (3), taking dry PET by weight ratio adds in super mixer, add the product that step (2) obtains again, and add PTW and nucleator by weight ratio, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging adds the main spout of twin screw extruder, add glass fibre by weight ratio from the side spout of twin screw extruder simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtain the high impact modified PET/PTT alloy material of one of the present invention.

Embodiment 2:

A kind of high impact modified PET/PTT alloy material, its component by mass percent proportioning is: PET 35%, PTT 30%, PTW 5%, ACR 15%, glass fibre 12%, Octabenzone 1.5%, nucleator 0.5%, oxidation inhibitor 0.1%, TAF 0.9%, described glass fibre is the alkali-free short glass fiber of surface through silane coupling agent process, described nucleator is the nano silicon of mass ratio 2:1 and the compound of Sodium Benzoate, described oxidation inhibitor is the Hinered phenols antioxidant 1076 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.

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, add ACR, Octabenzone, oxidation inhibitor, TAF by weight ratio simultaneously, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging add twin screw extruder melt extrude pelletizing and dry after stand-by, (3), taking dry PET by weight ratio adds in super mixer, add the product that step (2) obtains again, and add PTW and nucleator by weight ratio, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging adds the main spout of twin screw extruder, add glass fibre by weight ratio from the side spout of twin screw extruder simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtain the high impact modified PET/PTT alloy material of one of the present invention.

Claims (6)

1. a high impact modified PET/PTT alloy material, it is characterized in that, its component by mass percent proportioning is: PET 35% ~ 60%, PTT 20% ~ 30%, PTW 2% ~ 5%, ACR 5% ~ 15%, glass fibre 8% ~ 12%, photostabilizer 0.5% ~ 2%, nucleator 0.1% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, TAF 0.1% ~ 1%.

2. the high impact modified PET/PTT alloy material of one according to claim 1, is characterized in that, described glass fibre is the alkali-free short glass fiber of surface through silane coupling agent process.

3. the high impact modified PET/PTT alloy material of one according to claim 1, is characterized in that, described photostabilizer is ESCALOL 567 or Octabenzone.

4. the high impact modified PET/PTT alloy material of one according to claim 1, is characterized in that, described nucleator is the nano silicon of mass ratio 2:1 and the compound of Sodium Benzoate.

5. the high impact modified PET/PTT alloy material of one according to claim 1, is characterized in that, described oxidation inhibitor is the Hinered phenols antioxidant 1010 or 1076 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.

6. the preparation method of a kind of high impact modified PET/PTT alloy 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, add ACR, photostabilizer, oxidation inhibitor, TAF by weight ratio simultaneously, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging add twin screw extruder melt extrude pelletizing and dry after stand-by;

(3), taking dry PET by weight ratio adds in super mixer, add the product that step (2) obtains again, and add PTW and nucleator by weight ratio, make to be mixed together 3 ~ 15 minutes, after fully mixing, discharging adds the main spout of twin screw extruder, add glass fibre by weight ratio from the side spout of twin screw extruder simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtain the high impact modified PET/PTT alloy material of one of the present invention.