CN104845267A - PET/PTT/polyether ester macromolecular composite material - Google Patents

Abstract

The invention discloses a PET/PTT/polyether ester macromolecular composite material, which comprises the following components by mass: 30%-57% of PET, 20%-30% of PTT, 5%-10% of TPEE, 3%-5% of a compatilizer, 0.5%-2% of a nucleating agent, 0.1%-0.5% of an antioxidant, 0.1%-1% of a lubricant, 6%-10% of a flame retardant, and 8%-12% of nano-carbon fiber, which is vapor grown nano-carbon fiber with a diameter of 50nm-200nm and the surface subjected to oxygen (O2) plasma modification treatment. The PET/PTT/polyether ester macromolecular composite material provided by the invention has excellent mechanical properties and heat resistance, and has good flame retardancy and strong chemical resistance, thus having very good application effect and popularization prospects in the field of textile fiber or engineering plastics.

Description

A kind of PET/PTT/ polyether ester polymer composite

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of PET/PTT/ polyether ester polymer composite.

Background technology

Polyethylene terephthalate (PET)/Poly(Trimethylene Terephthalate) (PTT) belongs to a kind of novel polyblend, it has excellent physicochemical property and processing characteristics, and cost is low, thus will have broad application prospects in automobile, electric, the field such as household electrical appliances, fiber.But PET/PTT exists the problem of poor fire, mechanical strength instability, this will strongly limit its effect and Application Areas.In order to improve the performance of PET/PTT, often need to add three components in PET/PTT, to obtain the blend alloy system having much practical value.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/ polyether ester polymer composite of polyether ester and the blended preparation of PET/PTT, can the advantage of comprehensive three well, realize the inaccessiable over-all properties of single variety, thus there is very high practical value and good application prospect.

Summary of the invention

The object of the present invention is to provide that a kind of mechanical property is good, flame retardant resistance is excellent and the PET/PTT/ polyether ester polymer composite of wide adaptability.

The technical solution adopted for the present invention to solve the technical problems is: a kind of PET/PTT/ polyether ester polymer composite, and its component by mass percent proportioning is: PET 30% ~ 57%, PTT 20% ~ 30%, TPEE 5% ~ 10%, compatilizer 3% ~ 5%, nucleator 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, fire retardant 6% ~ 10%, carbon nano fiber 8% ~ 12%.

Described PET is polyethylene terephthalate.

Described PTT is Poly(Trimethylene Terephthalate).

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

Described compatilizer is glycidyl methacrylate-styrene-acrylonitrile terpolymer, and the content of glycidyl methacrylate accounts for 1wt% ~ 5wt%, the content of vinyl cyanide accounts for 27wt% ~ 30wt%.

Described nucleator is the compound of the sodium rice silicon-dioxide of mass ratio 8:1:1, Sodium Benzoate and polyoxyethylene glycol.

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

Described lubricant is the one in calcium stearate, silicone powder, pentaerythritol stearate.

Described fire retardant is the one in TDE, melamine cyanurate, dihydroxyphenyl propane-bis-(diphenyl phosphoester), polyphenylene phosphonic acids sulfobenzide ester.

Described carbon nano fiber be diameter at 50nm ~ 200nm and surface through the gas-phase grown nanometer carbon fibre of oxygen (O2) plasma modification process.

The preparation method of above-mentioned a kind of PET/PTT/ polyether ester polymer composite, 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, fire retardant at 80 DEG C ~ 85 DEG C temperature dry 30 ~ 45 minutes, stand-by;

(2), carbon nano fiber plasma modification process: by diameter in the case that the gas-phase grown nanometer carbon fibre of 50nm ~ 200nm inserts oxygen (O2) plasma body that vacuum tightness is l ~ 0.2mmHg, input voltage is 220V, process 1 ~ 3 minute, 5 ~ 25 minutes are exposed again in dry air, obtain the carbon nano fiber of described modification, and stand-by after drying;

(3) PTT and the fire retardant that, take drying by weight ratio add in super mixer, add the modified Nano carbon fiber that step (2) obtains again by weight ratio, and add 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 after drying, namely obtain a kind of PTT composite master batch;

(4), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add TPEE, compatilizer and nucleator by weight ratio, make to be mixed together 3 ~ 15 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 PET/PTT/ polyether ester polymer composite of the present invention.

The invention has the beneficial effects as follows, the present invention has excellent mechanical property and resistance toheat, and good flame resistance, and chemical resistant properties is strong, and in textile fibres or engineering plastics field, application will have good effect and promotion prospect.

Embodiment

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

Embodiment 1:

A kind of PET/PTT/ polyether ester polymer composite, its component by mass percent proportioning is: PET 30%, PTT 30%, TPEE 10%, compatilizer 5%, nucleator 2%, oxidation inhibitor 0.5%, calcium stearate 0.5%, TDE 10%, carbon nano fiber 12%, described compatilizer is glycidyl methacrylate-styrene-acrylonitrile terpolymer, and the content of glycidyl methacrylate accounts for 1wt% ~ 5wt%, the content of vinyl cyanide accounts for 27wt% ~ 30wt%; Described nucleator is the compound of the sodium rice silicon-dioxide of mass ratio 8:1:1, Sodium Benzoate and polyoxyethylene glycol; Described oxidation inhibitor is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168; Described carbon nano fiber be diameter at 50nm ~ 200nm and surface through the gas-phase grown nanometer carbon fibre of oxygen (O2) plasma modification process.

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, TDE at 80 DEG C ~ 85 DEG C temperature dry 30 ~ 45 minutes, stand-by; (2), carbon nano fiber plasma modification process: by diameter in the case that the gas-phase grown nanometer carbon fibre of 50nm ~ 200nm inserts oxygen (O2) plasma body that vacuum tightness is l ~ 0.2mmHg, input voltage is 220V, process 1 ~ 3 minute, 5 ~ 25 minutes are exposed again in dry air, obtain the carbon nano fiber of described modification, and stand-by after drying; (3) PTT and the TDE that, take drying by weight ratio add in super mixer, add the modified Nano carbon fiber that step (2) obtains again by weight ratio, and add oxidation inhibitor, calcium 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; (4), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add TPEE, compatilizer and nucleator by weight ratio, make to be mixed together 3 ~ 15 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 PET/PTT/ polyether ester polymer composite of the present invention.

Embodiment 2:

A kind of PET/PTT/ polyether ester polymer composite, its component by mass percent proportioning is: PET 57%, PTT 20%, TPEE 5%, compatilizer 3%, nucleator 0.5%, oxidation inhibitor 0.1%, pentaerythritol stearate 0.4%, dihydroxyphenyl propane-bis-(diphenyl phosphoester) 6%, carbon nano fiber 8%, described compatilizer is glycidyl methacrylate-styrene-acrylonitrile terpolymer, and the content of glycidyl methacrylate accounts for 1wt% ~ 5wt%, the content of vinyl cyanide accounts for 27wt% ~ 30wt%; Described nucleator is the compound of the sodium rice silicon-dioxide of mass ratio 8:1:1, Sodium Benzoate and polyoxyethylene glycol; Described oxidation inhibitor is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168; Described carbon nano fiber be diameter at 50nm ~ 200nm and surface through the gas-phase grown nanometer carbon fibre of oxygen (O2) plasma modification process.

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, TDE at 80 DEG C ~ 85 DEG C temperature dry 30 ~ 45 minutes, stand-by; (2), carbon nano fiber plasma modification process: by diameter in the case that the gas-phase grown nanometer carbon fibre of 50nm ~ 200nm inserts oxygen (O2) plasma body that vacuum tightness is l ~ 0.2mmHg, input voltage is 220V, process 1 ~ 3 minute, 5 ~ 25 minutes are exposed again in dry air, obtain the carbon nano fiber of described modification, and stand-by after drying; (3) PTT and the TDE that, take drying by weight ratio add in super mixer, add the modified Nano carbon fiber that step (2) obtains again by weight ratio, and add oxidation inhibitor, 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; (4), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add TPEE, compatilizer and nucleator by weight ratio, make to be mixed together 3 ~ 15 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 PET/PTT/ polyether ester polymer composite of the present invention.

Claims (7)

1. a PET/PTT/ polyether ester polymer composite, it is characterized in that, its component by mass percent proportioning is: PET 30% ~ 57%, PTT 20% ~ 30%, TPEE 5% ~ 10%, compatilizer 3% ~ 5%, nucleator 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, fire retardant 6% ~ 10%, carbon nano fiber 8% ~ 12%.

2. a kind of PET/PTT/ polyether ester polymer composite according to claim 1, it is characterized in that, described compatilizer is glycidyl methacrylate-styrene-acrylonitrile terpolymer, and the content of glycidyl methacrylate accounts for 1wt% ~ 5wt%, the content of vinyl cyanide accounts for 27wt% ~ 30wt%.

3. a kind of PET/PTT/ polyether ester polymer composite according to claim 1, is characterized in that, described nucleator is the compound of the sodium rice silicon-dioxide of mass ratio 8:1:1, Sodium Benzoate and polyoxyethylene glycol.

4. a kind of PET/PTT/ polyether ester polymer composite according to claim 1, is characterized in that, described oxidation inhibitor is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.

5. a kind of PET/PTT/ polyether ester polymer composite according to claim 1, it is characterized in that, described fire retardant is the one in TDE, melamine cyanurate, dihydroxyphenyl propane-bis-(diphenyl phosphoester), polyphenylene phosphonic acids sulfobenzide ester.

6. a kind of PET/PTT/ polyether ester polymer composite according to claim 1, is characterized in that, described carbon nano fiber be diameter at 50nm ~ 200nm and surface through the gas-phase grown nanometer carbon fibre of oxygen (O2) plasma modification process.

7. the preparation method of a kind of PET/PTT/ polyether ester polymer composite 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, fire retardant at 80 DEG C ~ 85 DEG C temperature dry 30 ~ 45 minutes, stand-by;

(2), carbon nano fiber plasma modification process: by diameter in the case that the gas-phase grown nanometer carbon fibre of 50nm ~ 200nm inserts oxygen (O2) plasma body that vacuum tightness is l ~ 0.2mmHg, input voltage is 220V, process 1 ~ 3 minute, 5 ~ 25 minutes are exposed again in dry air, obtain the carbon nano fiber of described modification, and stand-by after drying;

(3) PTT and the fire retardant that, take drying by weight ratio add in super mixer, add the modified Nano carbon fiber that step (2) obtains again by weight ratio, and add 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 after drying, namely obtain a kind of PTT composite master batch;

(4), taking dry PET by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add TPEE, compatilizer and nucleator by weight ratio, make to be mixed together 3 ~ 15 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 PET/PTT/ polyether ester polymer composite of the present invention.