CN104845098A - Antistatic PET/PTT/TPEE composite fiber and preparation method thereof - Google Patents

Abstract

The invention discloses an antistatic PET/PTT/TPEE composite fiber and a preparation method thereof. The antistatic PET/PTT/TPEE composite fiber provided by the invention comprises the following components by weight: 40% to 60% of PET, 20% to 30% of PTT, 5% to 10% of TPEE, 2% to 4% of SMA, 5% to 12% of a filling agent, 1% to 3% of an antistatic agent, 0.1% to 0.5% of a coupling agent, 0.1% to 0.5% of an antioxidant and 0.1% to 1% of a lubricant, wherein the filling agent is heavyweight calcium carbonate with a particle size of 10 to 80 nm or fumed silica with a particle size of 20 to 40 nm. The invention has the following beneficial effects: the antistatic PET/PTT/TPEE composite fiber integrates respective advantages of PET, PTT and TPEE and also has good antistatic performance and mechanical performance, good flexibility, strong aging resistance, low cost and simple preparation process.

Description

Antistatic PET/PTT/TPEE conjugated fibre and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of antistatic PET/PTT/TPEE conjugated fibre and preparation method thereof.

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; PTT fiber maintains excellent crease resistance and the chemical resistant properties of PET fiber, flexibility, anti-Japanese photosensitiveness, resistance to soiling, low static behaviour, easy dyeing, low water absorption have the features such as certain hydrolytic stability.But its modulus is lower, material is softer limits PTT use range.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 conjugated fibre of blended to PET, PTT and TPEE preparation, can the advantage of comprehensive three well, realize the inaccessiable over-all properties of single variety, but PET/PTT/TPEE easily produces electrostatic in production and use procedure, to cause the harm such as dust suction, electric discharge, this will affect application performance to a great extent.

Summary of the invention

Antistatic PET/PTT/TPEE conjugated fibre that the object of the present invention is to provide a kind of good combination property and preparation method thereof.

The technical solution adopted for the present invention to solve the technical problems is: antistatic PET/PTT/TPEE conjugated fibre, and its component by mass percent proportioning is: PET 40% ~ 65%, PTT 20% ~ 30%, TPEE 5% ~ 10%, SMA 2% ~ 4%, weighting agent 5% ~ 12%, static inhibitor 1% ~ 3%, coupling agent 0.1% ~ 0.5%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

Described PET is polyethylene terephthalate.

Described PTT is Poly(Trimethylene Terephthalate).

Described TPEE is polybutylene terephthalate-Pluronic F108.

Described SMA is styrene-grafted copolymer-maleic anhydride.

Described weighting agent is particle diameter at the water-ground limestone of 10 ~ 80nm or the particle diameter aerosil at 20 ~ 40nm.

Described static inhibitor is the one in polyethylene oxide, polyether ester amides, polyether ester imide, polyethylene glycol alkyl ether, glycerol monostearate, alkyl sodium sulfonate.

Described coupling agent is γ-aminopropyltrimethoxysilane.

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 the one in calcium stearate, silicone powder, ethylene bis stearamide, pentaerythritol stearate.

The preparation method of above-mentioned antistatic PET/PTT/TPEE conjugated fibre, 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, weighting agent at 80 DEG C ~ 100 DEG C temperature dry 3 ~ 4 hours, stand-by;

(2), take dry weighting agent by weight ratio and add barrel temperature in the super mixer of 80 DEG C ~ 120 DEG C, and add coupling agent by weight ratio, after rotating speed 3000 ~ 4500 revs/min stirs 10 ~ 60 minutes, be cooled to lower than 40 DEG C of dischargings stand-by;

(3), taking dry PEE and PTT by weight ratio adds in super mixer, add the product that step (2) obtains again, and add TPEE, SMA, static inhibitor, oxidation inhibitor, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin-screw extruder, through blended, the melting of screw machine extruding, carry out spinning again, namely obtain antistatic PET/PTT/TPEE conjugated fibre of the present invention.

The invention has the beneficial effects as follows, the present invention combines PET, PTT and TPEE advantage separately, also has good antistatic property and mechanical property, and flexibility is good, and ageing-resistant is strong, and cost is low, and preparation technology is simple.

Embodiment

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

Embodiment 1:

A kind of antistatic PET/PTT/TPEE conjugated fibre, its component by mass percent proportioning is: PET 40%, PTT 30%, TPEE 10%, SMA 4%, particle diameter are at compound 0.3%, the calcium stearate 0.5% of the water-ground limestone 12% of 10 ~ 80nm, polyether ester amides 3%, γ-aminopropyltrimethoxysilane 0.2%, antioxidant 1010 and irgasfos 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, particle diameter was the water-ground limestone of 10 ~ 80nm at 80 DEG C ~ 100 DEG C temperature dry 3 ~ 4 hours, stand-by; (2), take dry particle diameter by weight ratio and add barrel temperature in the super mixer of 80 DEG C ~ 120 DEG C at the water-ground limestone of 10 ~ 80nm, and add γ-aminopropyltrimethoxysilane by weight ratio, after rotating speed 3000 ~ 4500 revs/min stirs 10 ~ 60 minutes, be cooled to lower than 40 DEG C of dischargings stand-by; (3), taking dry PEE and PTT by weight ratio adds in super mixer, add the product that step (2) obtains again, and add compound, the calcium stearate of TPEE, SMA, polyether ester amides, antioxidant 1010 and irgasfos 168 by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin-screw extruder, through blended, the melting of screw machine extruding, carry out spinning again, namely obtain antistatic PET/PTT/TPEE conjugated fibre of the present invention.

Embodiment 2:

A kind of antistatic PET/PTT/TPEE conjugated fibre, its component by mass percent proportioning is: PET 65%, PTT 20%, TPEE 5%, SMA 3%, particle diameter are at aerosil 5%, glycerol monostearate 1.2%, γ-aminopropyltrimethoxysilane 0.1%, antioxidant 1010 0.2%, the pentaerythritol stearate 0.5% of 20 ~ 40nm.

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, particle diameter was the aerosil of 20 ~ 40nm at 80 DEG C ~ 100 DEG C temperature dry 3 ~ 4 hours, stand-by; (2), take dry particle diameter by weight ratio and add barrel temperature in the super mixer of 80 DEG C ~ 120 DEG C at the aerosil of 20 ~ 40nm, and add γ-aminopropyltrimethoxysilane by weight ratio, after rotating speed 3000 ~ 4500 revs/min stirs 10 ~ 60 minutes, be cooled to lower than 40 DEG C of dischargings stand-by; (3), taking dry PEE and PTT by weight ratio adds in super mixer, add the product that step (2) obtains again, and add TPEE, SMA, glycerol monostearate, antioxidant 1010, pentaerythritol stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin-screw extruder, through blended, the melting of screw machine extruding, carry out spinning again, namely obtain antistatic PET/PTT/TPEE conjugated fibre of the present invention.

Claims (5)

1. an antistatic PET/PTT/TPEE conjugated fibre, it is characterized in that, its component by mass percent proportioning is: PET 40% ~ 65%, PTT 20% ~ 30%, TPEE 5% ~ 10%, SMA 2% ~ 4%, weighting agent 5% ~ 12%, static inhibitor 1% ~ 3%, coupling agent 0.1% ~ 0.5%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. antistatic PET/PTT/TPEE conjugated fibre according to claim 1, is characterized in that, described weighting agent is particle diameter at the water-ground limestone of 10 ~ 80nm or the particle diameter aerosil at 20 ~ 40nm.

3. antistatic PET/PTT/TPEE conjugated fibre according to claim 1, it is characterized in that, described static inhibitor is the one in polyethylene oxide, polyether ester amides, polyether ester imide, polyethylene glycol alkyl ether, glycerol monostearate, alkyl sodium sulfonate.

4. antistatic PET/PTT/TPEE conjugated fibre according to claim 1, is characterized in that, described coupling agent is γ-aminopropyltrimethoxysilane.

5. the preparation method of antistatic PET/PTT/TPEE conjugated fibre 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, weighting agent at 80 DEG C ~ 100 DEG C temperature dry 3 ~ 4 hours, stand-by;

(2), take dry weighting agent by weight ratio and add barrel temperature in the super mixer of 80 DEG C ~ 120 DEG C, and add coupling agent by weight ratio, after rotating speed 3000 ~ 4500 revs/min stirs 10 ~ 60 minutes, be cooled to lower than 40 DEG C of dischargings stand-by;

(3), taking dry PEE and PTT by weight ratio adds in super mixer, add the product that step (2) obtains again, and add TPEE, SMA, static inhibitor, oxidation inhibitor, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin-screw extruder, through blended, the melting of screw machine extruding, carry out spinning again, namely obtain antistatic PET/PTT/TPEE conjugated fibre of the present invention.