CN104845120A - PET/PTT/PPE composite material and preparation method thereof - Google Patents

Abstract

The invention discloses a PET/PTT/PPE composite material and a preparation method thereof. The PET/PTT/PPE composite material provided by the invention comprises the following components by weight: 25% to 60% of PET, 10% to 25% of PTT, 10% to 15% of PPE, 2% ~ 4% of a compatibilizing agent, 8% to 12% of glass fiber, 4% to 10% of inorganic particles, 5% to 8% of a toughening 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 inorganic particles are one selected from the group consisting of calcium carbonate, barium sulfate, silica and alumina with a particle size of 0.01 to 20 [mu]m. The invention has the following beneficial effects: the PET/PTT/PPE composite material integrates respective advantages of PET, PTT and PPE and has the advantages of good mechanical performance, heat resistant performance, no warpage, good appearance, low cost, strong chemical resistance and exellent electrical performance.

Description

A kind of PET/PTT/PPE matrix material and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of PET/PTT/PPE matrix material 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; But PTT is used alone exists that thermotolerance is bad, dimensional stability is not high, the problem of poor fire, thus limits its application.Polyphenylene oxide (PPE) is that it has good physical and mechanical properties, electric insulating quality, thermotolerance, flame retardant resistance and stability to hydrolysis, has less molding shrinkage and thermal expansivity by a kind of engineering plastics of GE company of the U.S. in twentieth century industrialization in 60 years; But PPE exists, and melt viscosity is high, the problem of the easy stress cracking of processing difficulties, goods, under ultraviolet light easy aging crosslinked, resistance to polar solvent difference, and be therefore used alone and do not have using value, the product of existing market is all its composite products substantially.By the PET/PTT/PPE matrix material of blended to PET, PTT and PPE preparation, can the advantage of comprehensive three well, realize the inaccessiable over-all properties of single variety, thus there is very high practical value and application prospect.

Summary of the invention

PET/PTT/PPE matrix material that the object of the present invention is to provide a kind of good mechanical performance and preparation method thereof.

The technical solution adopted for the present invention to solve the technical problems is: a kind of PET/PTT/PPE matrix material, and its component by mass percent proportioning is: PET 25% ~ 60%, PTT 10% ~ 25%, PPE 10% ~ 15%, compatilizer 2% ~ 4%, glass fibre 8% ~ 12%, inorganic particulate 4% ~ 10%, toughner 5% ~ 8%, coupling agent 0.1% ~ 0.5%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

The polyethylene terephthalate of described PET to be intrinsic viscosity be 0.7 ~ 1.2dL/g.

Described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.6 ~ 1.2dL/g.

Described PPE is the polyphenylene oxide of limiting viscosity 0.4 ~ 0.6dL/g.

Described compatilizer is styrene-grafted copolymer-maleic anhydride SMA.

Described glass fibre be surface through silane coupling agent process and diameter at the alkali-free short glass fiber of 8 ~ 15 μm.

Described inorganic particulate is particle diameter calcium carbonate, barium sulfate, silicon-dioxide, the one in aluminum oxide of 0.01 ~ 20 μm.

Described toughner is the one in ethylene-octene copolymer POE, terpolymer EP rubber EPDM, paracril NBR, polyurethane elastomer.

Described coupling agent is titanate coupling agent or aluminium titanium composite coupler.

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 modification ethylene bis stearamide.

The preparation method of above-mentioned a kind of PET/PTT/PPE matrix material, comprises the following steps:

(1), by PET, PTT and PPE in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, inorganic particulate at 80 DEG C ~ 120 DEG C temperature dry 3 ~ 4 hours, stand-by;

(2), take dry inorganic particulate 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 ~ 45 minutes, be cooled to lower than 40 DEG C of dischargings stand-by;

(3), taking dry PTT by weight ratio adds in super mixer, and add toughner, oxidation inhibitor, lubricant by weight ratio, and add the product that step (2) obtains, 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 and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add compatilizer by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds 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 120 ~ 400r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of PET/PTT/PPE matrix material of the present invention.

The invention has the beneficial effects as follows, the present invention combines PET, PTT and PPE advantage separately, has good mechanical property and resistance toheat, and without warpage, outward appearance is good, and cost is low, and chemical resistant properties is strong, electrical property is excellent, and preparation technology is simple, is suitable for suitability for industrialized production and applies.

Embodiment

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

Embodiment 1:

A kind of PET/PTT/PPE matrix material, its component by mass percent proportioning is: PET 25%, PTT 25%, PPE 15%, SMA 4%, glass fibre 12%, particle diameter is at the calcium carbonate 10% of 0.01 ~ 20 μm, POE 8%, aluminium titanium composite coupler 0.3%, the compound 0.2% of antioxidant 1010 and irgasfos 168, modification ethylene bis stearamide 0.5%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.7 ~ 1.2dL/g, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.6 ~ 1.2dL/g, described PPE is the polyphenylene oxide of limiting viscosity 0.4 ~ 0.6dL/g, described glass fibre is that surface is through silane coupling agent process, and diameter is at the alkali-free short glass fiber of 8 ~ 15 μm.

Preparation method: (1), by PET, PTT and PPE in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, particle diameter was in the calcium carbonate of 0.01 ~ 20 μm at 80 DEG C ~ 120 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 calcium carbonate of 0.01 ~ 20 μm, and add aluminium titanium composite coupler by weight ratio, after rotating speed 3000 ~ 4500 revs/min stirs 10 ~ 45 minutes, be cooled to lower than 40 DEG C of dischargings stand-by, (3), taking dry PTT by weight ratio adds in super mixer, and add compound, the modification ethylene bis stearamide of POE, antioxidant 1010 and irgasfos 168 by weight ratio, and add the product that step (2) obtains, 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 and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add SMA by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds 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 120 ~ 400r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of PET/PTT/PPE matrix material of the present invention.

Embodiment 2:

A kind of PET/PTT/PPE matrix material, its component by mass percent proportioning is: PET 60%, PTT 10%, PPE 10%, SMA 2.5%, glass fibre 8%, particle diameter is at the aluminum oxide 4% of 0.01 ~ 20 μm, TPU 5%, titanate coupling agent 0.1%, antioxidant 1010 0.1%, modification ethylene bis stearamide 0.4%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.7 ~ 1.2dL/g, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.6 ~ 1.2dL/g, described PPE is the polyphenylene oxide of limiting viscosity 0.4 ~ 0.6dL/g, described glass fibre is that surface is through silane coupling agent process, and diameter is at the alkali-free short glass fiber of 8 ~ 15 μm.

Preparation method: (1), by PET, PTT and PPE in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, particle diameter was in the aluminum oxide of 0.01 ~ 20 μm at 80 DEG C ~ 120 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 aluminum oxide of 0.01 ~ 20 μm, and add titanate coupling agent by weight ratio, after rotating speed 3000 ~ 4500 revs/min stirs 10 ~ 45 minutes, be cooled to lower than 40 DEG C of dischargings stand-by, (3), taking dry PTT by weight ratio adds in super mixer, and add TPU, antioxidant 1010, modification ethylene bis stearamide by weight ratio, and add the product that step (2) obtains, 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 and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add SMA by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds 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 120 ~ 400r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of PET/PTT/PPE matrix material of the present invention.

Claims (8)

1. a PET/PTT/PPE matrix material, it is characterized in that, its component by mass percent proportioning is: PET 25% ~ 60%, PTT 10% ~ 25%, PPE 10% ~ 15%, compatilizer 2% ~ 4%, glass fibre 8% ~ 12%, inorganic particulate 4% ~ 10%, toughner 5% ~ 8%, coupling agent 0.1% ~ 0.5%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, described glass fibre be surface through silane coupling agent process and diameter at the alkali-free short glass fiber of 8 ~ 15 μm.

3. a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, described inorganic particulate is particle diameter calcium carbonate, barium sulfate, silicon-dioxide, the one in aluminum oxide of 0.01 ~ 20 μm.

4. a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, described toughner is the one in POE, EPDM, NBR, TPU.

5. a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, described coupling agent is titanate coupling agent or aluminium titanium composite coupler.

6. a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, described oxidation inhibitor is the one in the compound of antioxidant 1010, antioxidant 1076, antioxidant 1010 or antioxidant 1076 and irgasfos 168.

7. a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, described lubricant is modification ethylene bis stearamide.

8. the preparation method of a kind of PET/PTT/PPE matrix material according to claim 1, is characterized in that, comprise the following steps:

(1), by PET, PTT and PPE in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, inorganic particulate at 80 DEG C ~ 120 DEG C temperature dry 3 ~ 4 hours, stand-by;

(2), take dry inorganic particulate 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 ~ 45 minutes, be cooled to lower than 40 DEG C of dischargings stand-by;

(3), taking dry PTT by weight ratio adds in super mixer, and add toughner, oxidation inhibitor, lubricant by weight ratio, and add the product that step (2) obtains, 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 and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (3) is obtained again, and add compatilizer by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds 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 120 ~ 400r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of PET/PTT/PPE matrix material of the present invention.