CN104846477A - Flame-retardant PET/PTT blend fiber - Google Patents

Abstract

The invention discloses a flame-retardant PET/PTT blend fiber, which comprises the following components in mass percentage: 32% to 65% of PET, 20% to 40% of PTT, 2% to 4% of SMA, 5% to 10% of POE, 6% to 12% of flame retardant, 0.5% to 1% of heat stabilizer, 0.1% to 0.5% of antioxidant, and 0.1% to 1% of lubricant. The flame retardant is in the form of PSPPP. The flame-retardant PET/PTT blend fiber is good in elasticity, toughness, flexibility, chemical resistance and flame-retardant effect, thus being applicable to the field of textile fabrics.

Description

A kind of Flame-retardant PET/PTT blended fiber

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of Flame-retardant PET/PTT blended fiber.

Background technology

Polyethylene terephthalate (PET)/polytrimethylene terephthalate (PTT) belongs to a kind of novel plastic alloy material, 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.Especially in fiber art, PET/PTT fiber combines PET and PTT advantage separately in performance, there is excellent especially flexibility, elastic recovery, the stability feature of processing characteristics, electric property, mechanical performance and size, and there is excellent wrinkle resistance and chemical resistance, the advantage such as anti-Japanese photosensitiveness, resistance to soiling, low static behaviour, easy dyeing, low water absorption.But the self flame retardance performance of PET/PTT fiber is inadequate, thus limits the application of PET/PTT fiber in some field.

Summary of the invention

The object of the present invention is to provide a kind of modified effect good, adaptable Flame-retardant PET/PTT blended fiber.

The technical solution adopted for the present invention to solve the technical problems is: a kind of Flame-retardant PET/PTT blended fiber, and its component by mass percent proportioning is: PET 32% ~ 65%, PTT 20% ~ 40%, SMA 2% ~ 4%, POE 5% ~ 10%, fire retardant 6% ~ 12%, heat stabilizer 0.5% ~ 1%, antioxidant 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

The polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g.

Described PTT is the polytrimethylene terephthalate of intrinsic viscosity 0.7 ~ 1.2dL/g.

Described SMA is styrene-grafted copolymer-maleic anhydride.

Described POE is ethylene-octene copolymer.

Described fire retardant is polyphenylene phosphonic acids diphenyl sulphone (DPS) ester.

Described heat stabilizer is the one in barium stearate, cadmium stearate, dibutyitin maleate, triphenyl phosphite.

Described antioxidant 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, modification ethylene bis-fatty acid amides, pentaerythritol stearate.

The preparation method of above-mentioned a kind of Flame-retardant PET/PTT blended fiber, 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 60 DEG C ~ 85 DEG C temperature dry 3 ~ 4 hours, stand-by;

(2) PTT and the fire retardant that, take drying by weight ratio add in super mixer, and add heat stabilizer, antioxidant, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds double screw extruder and melt extrudes pelletizing and dry, i.e. the fire-retardant composite master batch of a kind of PTT;

(3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant composite master batch of PTT that step (2) is obtained again, and add SMA and POE by weight ratio, make to be mixed together 3 ~ 5 minutes, evenly rear discharging to be mixed adds twin (double) screw extruder, blended through screw machine extruding, melting, carry out spinning again, the melt temperature of spinning controls between 220 DEG C ~ 280 DEG C, winding speed controls at 1000 ~ 3000m/min, heat setting temperature is 80 DEG C ~ 150 DEG C, drafting multiple controls between 2 ~ 6 times, obtain a kind of Flame-retardant PET/PTT blended fiber of the present invention.

The invention has the beneficial effects as follows, the present invention has good elasticity and toughness, and flexibility is good, and chemical resistance is strong, and good flame retardation effect, is suitable for textile fabric field.

Detailed description of the invention

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

Embodiment 1:

A kind of Flame-retardant PET/PTT blended fiber, its component by mass percent proportioning is: PET 65%, PTT 20%, SMA 3%, POE 5%, polyphenylene phosphonic acids diphenyl sulphone (DPS) ester 6%, barium stearate 0.5%, antioxidant 0.1%, calcium stearate 0.4%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g, described PTT is the polytrimethylene terephthalate of intrinsic viscosity 0.7 ~ 1.2dL/g, and described antioxidant 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, polyphenylene phosphonic acids diphenyl sulphone (DPS) ester at 60 DEG C ~ 85 DEG C temperature dry 3 ~ 4 hours, stand-by, (2) PTT and the polyphenylene phosphonic acids diphenyl sulphone (DPS) ester that, take drying by weight ratio add in super mixer, and add barium stearate, antioxidant, calcium stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds double screw extruder and melt extrudes pelletizing and dry, i.e. the fire-retardant composite master batch of a kind of PTT, (3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant composite master batch of PTT that step (2) is obtained again, and add SMA and POE by weight ratio, make to be mixed together 3 ~ 5 minutes, evenly rear discharging to be mixed adds twin (double) screw extruder, blended through screw machine extruding, melting, carry out spinning again, the melt temperature of spinning controls between 220 DEG C ~ 280 DEG C, winding speed controls at 1000 ~ 3000m/min, heat setting temperature is 80 DEG C ~ 150 DEG C, drafting multiple controls between 2 ~ 6 times, obtain a kind of Flame-retardant PET/PTT blended fiber of the present invention.

Embodiment 2:

A kind of Flame-retardant PET/PTT blended fiber, its component by mass percent proportioning is: PET 32%, PTT 40%, SMA 4%, POE 10%, polyphenylene phosphonic acids diphenyl sulphone (DPS) ester 12%, triphenyl phosphite 1%, antioxidant 0.5%, pentaerythritol stearate 0.5%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g, described PTT is the polytrimethylene terephthalate of intrinsic viscosity 0.7 ~ 1.2dL/g, and described antioxidant 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, polyphenylene phosphonic acids diphenyl sulphone (DPS) ester at 60 DEG C ~ 85 DEG C temperature dry 3 ~ 4 hours, stand-by, (2) PTT and the polyphenylene phosphonic acids diphenyl sulphone (DPS) ester that, take drying by weight ratio add in super mixer, and add triphenyl phosphite, antioxidant, pentaerythritol stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds double screw extruder and melt extrudes pelletizing and dry, i.e. the fire-retardant composite master batch of a kind of PTT, (3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant composite master batch of PTT that step (2) is obtained again, and add SMA and POE by weight ratio, make to be mixed together 3 ~ 5 minutes, evenly rear discharging to be mixed adds twin (double) screw extruder, blended through screw machine extruding, melting, carry out spinning again, the melt temperature of spinning controls between 220 DEG C ~ 280 DEG C, winding speed controls at 1000 ~ 3000m/min, heat setting temperature is 80 DEG C ~ 150 DEG C, drafting multiple controls between 2 ~ 6 times, obtain a kind of Flame-retardant PET/PTT blended fiber of the present invention.

Claims (6)

1. Flame-retardant PET/PTT blended fiber, it is characterized in that, its component by mass percent proportioning is: PET 32% ~ 65%, PTT 20% ~ 40%, SMA 2% ~ 4%, POE 5% ~ 10%, fire retardant 6% ~ 12%, heat stabilizer 0.5% ~ 1%, antioxidant 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. a kind of Flame-retardant PET/PTT blended fiber according to claim 1, is characterized in that, described fire retardant is polyphenylene phosphonic acids diphenyl sulphone (DPS) ester.

3. a kind of Flame-retardant PET/PTT blended fiber according to claim 1, is characterized in that, described heat stabilizer is the one in barium stearate, cadmium stearate, dibutyitin maleate, triphenyl phosphite.

4. a kind of Flame-retardant PET/PTT blended fiber according to claim 1, is characterized in that, described antioxidant is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.

5. a kind of Flame-retardant PET/PTT blended fiber according to claim 1, is characterized in that, described lubricant is the one in calcium stearate, modification ethylene bis-fatty acid amides, pentaerythritol stearate.

6. the preparation method of a kind of Flame-retardant PET/PTT blended fiber 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 60 DEG C ~ 85 DEG C temperature dry 3 ~ 4 hours, stand-by;

(2) PTT and the fire retardant that, take drying by weight ratio add in super mixer, and add heat stabilizer, antioxidant, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds double screw extruder and melt extrudes pelletizing and dry, i.e. the fire-retardant composite master batch of a kind of PTT;

(3), taking dry PET by weight ratio adds in super mixer, add the fire-retardant composite master batch of PTT that step (2) is obtained again, and add SMA and POE by weight ratio, make to be mixed together 3 ~ 5 minutes, evenly rear discharging to be mixed adds twin (double) screw extruder, blended through screw machine extruding, melting, carry out spinning again, the melt temperature of spinning controls between 220 DEG C ~ 280 DEG C, winding speed controls at 1000 ~ 3000m/min, heat setting temperature is 80 DEG C ~ 150 DEG C, drafting multiple controls between 2 ~ 6 times, obtain a kind of Flame-retardant PET/PTT blended fiber of the present invention.