CN104845152A - PET/PTT alloy material excellent in antistatic performance - Google Patents

Abstract

The invention discloses a PET/PTT alloy material excellent in antistatic performance, which comprises the following components in mass percentage: 42-62% of PET, 20-30% of PTT, 8-12% of glass fibers, 0.5-3% of antistatic agent, 5-8% of flexibilizer, 2-4% of compatilizer, 0.1-0.5% of anti-oxidant and 0.1-1% of lubricant. According to the invention, the antistatic agent is at least one selected from bis-(2-hydroxyethyl) octyl methyl bis-ammonium sulphonate, polyethylene oxide, polyether ester amide, polyether urethane imide, glycerol monostearate, and nanoscale antimony-doped tin oxide. In this way, the original advantages of PET and PTT are integrated, and the PET/PTT alloy is excellent in antibacterial, deodorizing and air-purifying performances. Meanwhile, the mechanical property and the heat resistance of the PET/PTT alloy are significantly improved. Moreover, the PET/PTT alloy material is excellent in antistatic property. The surface resistance of the PET/PTT alloy material is up to 108-10 omega *cm. Meanwhile, the PET/PTT alloy material is high in strength, high in impact resistance and high in heat resistance.

Description

A kind of PET/PTT alloy material with excellent antistatic property

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of PET/PTT alloy material with excellent antistatic property.

Background technology

PET(polyethylene terephthalate)/PTT(Poly(Trimethylene Terephthalate)) be a kind of novel plastic alloy material, it has excellent physicochemical property and processing characteristics, and cost is low, thus will have a good application prospect in automobile, electric, the field such as household electrical appliances, fiber.But the mechanical property of PET/PTT is unstable, and easily produce electrostatic in production and use procedure, dust suction, electric discharge harm will be caused, affect its use properties etc.

Summary of the invention

The object of the present invention is to provide a kind of PET/PTT alloy material with excellent antistatic property.

The technical solution adopted for the present invention to solve the technical problems is: a kind of PET/PTT alloy material with excellent antistatic property, and its component by mass percent proportioning is: PET 42% ~ 62%, PTT 20% ~ 30%, glass fibre 8% ~ 12%, static inhibitor 0.5% ~ 3%, toughner 5% ~ 8%, compatilizer 2% ~ 4%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

Described PET is polyethylene terephthalate.

Described PTT is Poly(Trimethylene Terephthalate).

Described glass fibre be surface through the coupling agent modified process of γ-aminopropyltrimethoxysilane and diameter at 5 ~ 18 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm.

Described static inhibitor is at least one in two (2-hydroxyethyl) octyl methyl biconjugate ammonium tosylate, polyethylene oxide, polyether ester amides, polyether ester imide, stearic acid monoglycerides, Nanometer-sized Antimony-doped stannic oxide.

Described toughner is MBS ternary graft copolymer.

Described compatilizer is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.

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 lubricant is modification ethylene bis-fatty acid amides.

Above-mentioned a kind of preparation method with the PET/PTT alloy material of excellent antistatic property, 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) take dry PET and PTT, by weight ratio to add in super mixer, and add static inhibitor, toughner, compatilizer, oxidation inhibitor, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, discharging after fully mixing;

(3), the discharging of step (2) is added the main spout of twin screw extruder, add described 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtains a kind of PET/PTT alloy material with excellent antistatic property of the present invention.

The invention has the beneficial effects as follows, the present invention has PET, PTT original advantage separately, and (surface resistivity can reach 10 also to have excellent antistatic property ^{8 ~ 10}Ω cm), and there is the advantages such as high strength, high-impact and high heat resistance, greatly will improve effect and the Application Areas of PET/PTT, thus there is good application prospect.

Embodiment

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

Embodiment 1:

A kind of PET/PTT alloy material with excellent antistatic property, its component by mass percent proportioning is: PET 42%, PTT 30%, glass fibre 12%, two (2-hydroxyethyl) octyl methyl biconjugate ammonium tosylate 3%, MBS ternary graft copolymer 8%, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer 4%, oxidation inhibitor 0.5%, modification ethylene bis-fatty acid amides 0.5%, described glass fibre is that surface is through the coupling agent modified process of γ-aminopropyltrimethoxysilane, and diameter is at 5 ~ 18 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm, 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 PET and PTT by weight ratio adds in super mixer, and add two (2-hydroxyethyl) octyl methyl biconjugate ammonium tosylate, MBS ternary graft copolymer, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer, oxidation inhibitor, modification ethylene bis-fatty acid amides by weight ratio, make to be mixed together 3 ~ 5 minutes, discharging after fully mixing; (3), the discharging of step (2) is added the main spout of twin screw extruder, add described 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtains a kind of PET/PTT alloy material with excellent antistatic property of the present invention.

Embodiment 2:

A kind of PET/PTT alloy material with excellent antistatic property, its component by mass percent proportioning is: PET 62%, PTT 20%, glass fibre 8%, polyether ester imide 1.5%, MBS ternary graft copolymer 5%, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer 3%, oxidation inhibitor 0.1%, modification ethylene bis-fatty acid amides 0.4%, described glass fibre is that surface is through the coupling agent modified process of γ-aminopropyltrimethoxysilane, and diameter is at 5 ~ 18 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm, 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 PET and PTT by weight ratio adds in super mixer, and add polyether ester imide, MBS ternary graft copolymer, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer, oxidation inhibitor, modification ethylene bis-fatty acid amides by weight ratio, make to be mixed together 3 ~ 5 minutes, discharging after fully mixing; (3), the discharging of step (2) is added the main spout of twin screw extruder, add described 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtains a kind of PET/PTT alloy material with excellent antistatic property of the present invention.

Claims (8)

1. one kind has the PET/PTT alloy material of excellent antistatic property, it is characterized in that, its component by mass percent proportioning is: PET 42% ~ 62%, PTT 20% ~ 30%, glass fibre 8% ~ 12%, static inhibitor 0.5% ~ 3%, toughner 5% ~ 8%, compatilizer 2% ~ 4%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. a kind of PET/PTT alloy material with excellent antistatic property according to claim 1, it is characterized in that, described glass fibre be surface through the coupling agent modified process of γ-aminopropyltrimethoxysilane and diameter at 5 ~ 18 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm.

3. a kind of PET/PTT alloy material with excellent antistatic property according to claim 1, it is characterized in that, described static inhibitor is at least one in two (2-hydroxyethyl) octyl methyl biconjugate ammonium tosylate, polyethylene oxide, polyether ester amides, polyether ester imide, stearic acid monoglycerides, Nanometer-sized Antimony-doped stannic oxide.

4. a kind of PET/PTT alloy material with excellent antistatic property according to claim 1, it is characterized in that, described toughner is MBS ternary graft copolymer.

5. a kind of PET/PTT alloy material with excellent antistatic property according to claim 1, is characterized in that, described compatilizer is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.

6. a kind of PET/PTT alloy material with excellent antistatic property 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.

7. a kind of PET/PTT alloy material with excellent antistatic property according to claim 1, is characterized in that, described lubricant is modification ethylene bis-fatty acid amides.

8. a kind of preparation method with the PET/PTT alloy material of excellent antistatic property 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) take dry PET and PTT, by weight ratio to add in super mixer, and add static inhibitor, toughner, compatilizer, oxidation inhibitor, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, discharging after fully mixing;

(3), the discharging of step (2) is added the main spout of twin screw extruder, add described 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extruding pelletization, obtains a kind of PET/PTT alloy material with excellent antistatic property of the present invention.