CN104861558A - Toughening fiber-adding antistatic modified PTT composite material - Google Patents

Abstract

The invention discloses a toughening fiber-adding antistatic modified PTT composite material. The PTT composite material comprises the following ingredients, by weight, 70%-85% of PTT, 5%-10% of MBS, 8%-12% of glass fibers, 2%-5% of antistatic master batch, 0.5%-2% of light stabilizing agent, 0.1%-0.5% of anti-oxidants and 0.1%-1% of lubricants. The antistatic master batch is a master batch prepared from 25wt% of PTT, 35wt% of sodium alkyl benzene sulfonate, 35wt% of monoglyceric stearate and 5wt% of pentaerythritol stearate. The light stabilizing agent is 2-hydroxy-4-methoxy benzophenone or 2-hydroxy-4-n-octyloxybenzophenone. The beneficial effects are that the PTT composite material has excellent impact resistance and keeps high mechanical strength, the antistatic effects are good, the heat resistant stability is excellent, and the appearance is good.

Description

One is toughness reinforcing adds fine antistatic modified PTT matrix material

Technical field

The present invention relates to technical field of polymer materials, specifically a kind ofly toughness reinforcingly add fine antistatic modified PTT matrix material.

Background technology

Poly(Trimethylene Terephthalate) (PTT) is as a kind of new polyester macromolecular material of excellent combination property, the fields such as fiber, film, engineering plastics are widely used at present, but the defect that unmodified PTT exists, and notched Izod impact strength is low, notch sensitivity large, tensile strength is not high, static resistance is not enough, this greatly limits PTT and applies widely in every field.

Summary of the invention

Low toughness reinforcing of the good and cost of a kind of mechanical property is the object of the present invention is to provide to add fine antistatic modified PTT matrix material.

The technical solution adopted for the present invention to solve the technical problems is: one is toughness reinforcing adds fine antistatic modified PTT matrix material, and its component by mass percent proportioning is: PTT 70% ~ 85%, MBS 5% ~ 10%, glass fibre 8% ~ 12%, antistatic master granule 2% ~ 5%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

Described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.5dL/g.

Described MBS is the Methacrylate-butadiene-styrene with nucleocapsid structure, its relative density 1.09 ~ 1.11g/cm3.

Described glass fibre be surface through silane coupler modified process and diameter at 8 ~ 12 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm.

Described antistatic master granule is the master batch be made up of PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt%.

Described photostabilizer is ESCALOL 567 or Octabenzone.

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

The above-mentioned a kind of toughness reinforcing preparation method adding fine antistatic modified PTT matrix material, comprises the following steps:

(1) forced air circulation baking oven, by PTT is placed at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by;

(2) PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt%, is taken by weight ratio, add after stirring in super mixer, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, obtain described antistatic master granule, stand-by;

(3), taking dry PTT by weight ratio adds in high-speed mixer, add the MBS, photostabilizer, oxidation inhibitor and the lubricant that take by weight ratio simultaneously, and add the obtained antistatic master granule of step (2) by weight ratio, make to stir 3 ~ 5 minutes together, discharging after fully mixing;

(4), the compound of step (3) is added the main spout of twin screw extruder, add from the side spout of twin screw extruder the glass fibre taken by weight ratio simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 180 DEG C ~ 260 DEG C scopes, then extruding pelletization, obtains that one of the present invention is toughness reinforcing adds fine antistatic modified PTT matrix material.

The invention has the beneficial effects as follows, the present invention has excellent shock resistance and keeps higher mechanical strength, and antistatic effect is good, and heat-resistant stability is excellent, and outward appearance is good.

Embodiment

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

Embodiment 1:

One is toughness reinforcing adds fine antistatic modified PTT matrix material, its component by mass percent proportioning is: PTT 72%, MBS 10%, glass fibre 12%, antistatic master granule 4%, ESCALOL 567 1.5%, antioxidant 1010 0.1%, modification ethylene bis-fatty acid amides 0.4%, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.5dL/g, described MBS is the Methacrylate-butadiene-styrene with nucleocapsid structure, its relative density 1.09 ~ 1.11g/cm3, described glass fibre is that surface is through silane coupler modified process, and diameter is at 8 ~ 12 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm, described antistatic master granule is by PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, the master batch that stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt% makes.

Preparation method: (1), PTT is placed in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by; (2) PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt%, is taken by weight ratio, add after stirring in super mixer, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, obtain described antistatic master granule, stand-by; (3), taking dry PTT by weight ratio adds in high-speed mixer, add the MBS, ESCALOL 567, antioxidant 1010, the modification ethylene bis-fatty acid amides that take by weight ratio simultaneously, and add the obtained antistatic master granule of step (2) by weight ratio, make to stir 3 ~ 5 minutes together, discharging after fully mixing; (4), the compound of step (3) is added the main spout of twin screw extruder, add from the side spout of twin screw extruder the glass fibre taken by weight ratio simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 180 DEG C ~ 260 DEG C scopes, then extruding pelletization, obtains that one of the present invention is toughness reinforcing adds fine antistatic modified PTT matrix material.

Embodiment 2:

One is toughness reinforcing adds fine antistatic modified PTT matrix material, its component by mass percent proportioning is: PTT 78%, MBS 8%, glass fibre 10%, antistatic master granule 2.5%, Octabenzone 1%, the compound 0.2% of antioxidant 1076 and irgasfos 168, pentaerythritol stearate 0.3%, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.5dL/g, described MBS is the Methacrylate-butadiene-styrene with nucleocapsid structure, its relative density 1.09 ~ 1.11g/cm3, described glass fibre is that surface is through silane coupler modified process, and diameter is at 8 ~ 12 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm, described antistatic master granule is by PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, the master batch that stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt% makes.

Preparation method: (1), PTT is placed in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by; (2) PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt%, is taken by weight ratio, add after stirring in super mixer, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, obtain described antistatic master granule, stand-by; (3), taking dry PTT by weight ratio adds in high-speed mixer, add compound, the pentaerythritol stearate of MBS, Octabenzone 1%, antioxidant 1076 and the irgasfos 168 taken by weight ratio simultaneously, and add the obtained antistatic master granule of step (2) by weight ratio, make to stir 3 ~ 5 minutes together, discharging after fully mixing; (4), the compound of step (3) is added the main spout of twin screw extruder, add from the side spout of twin screw extruder the glass fibre taken by weight ratio simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 180 DEG C ~ 260 DEG C scopes, then extruding pelletization, obtains that one of the present invention is toughness reinforcing adds fine antistatic modified PTT matrix material.

Claims (5)

1. one kind toughness reinforcingly adds fine antistatic modified PTT matrix material, it is characterized in that, its component by mass percent proportioning is: PTT 70% ~ 85%, MBS 5% ~ 10%, glass fibre 8% ~ 12%, antistatic master granule 2% ~ 5%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. one according to claim 1 is toughness reinforcing adds fine antistatic modified PTT matrix material, it is characterized in that, described glass fibre be surface through silane coupler modified process and diameter at 8 ~ 12 μm, the alkali free glass fibre of length within the scope of 3 ~ 6mm.

3. one according to claim 1 is toughness reinforcing adds fine antistatic modified PTT matrix material, it is characterized in that, described antistatic master granule is the master batch be made up of PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt%.

4. one according to claim 1 is toughness reinforcing adds fine antistatic modified PTT matrix material, and it is characterized in that, described photostabilizer is ESCALOL 567 or Octabenzone.

5. a kind of toughness reinforcing preparation method adding fine antistatic modified PTT matrix material according to claim 1, is characterized in that, comprise the following steps:

(1) forced air circulation baking oven, by PTT is placed at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by;

(2) PTT 25wt%, sodium alkyl benzene sulfonate 35wt%, stearic acid monoglycerides 35wt% and pentaerythritol stearate 5wt%, is taken by weight ratio, add after stirring in super mixer, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, obtain described antistatic master granule, stand-by;

(3), taking dry PTT by weight ratio adds in high-speed mixer, add the MBS, photostabilizer, oxidation inhibitor and the lubricant that take by weight ratio simultaneously, and add the obtained antistatic master granule of step (2) by weight ratio, make to stir 3 ~ 5 minutes together, discharging after fully mixing;

(4), the compound of step (3) is added the main spout of twin screw extruder, add from the side spout of twin screw extruder the glass fibre taken by weight ratio simultaneously, by twin screw extruder melting mixing 1 ~ 2 minute, screw speed controls at 150 ~ 600r/min, processing temperature is 180 DEG C ~ 260 DEG C scopes, then extruding pelletization, obtains that one of the present invention is toughness reinforcing adds fine antistatic modified PTT matrix material.