CN104845179A - Glass fiber reinforced PET/PTT/PPE composite material - Google Patents

Abstract

The present invention discloses a glass fiber reinforced PET/PTT/PPE composite material, which comprises the following components in mass percent: 25% to 55% of PET, 15% to 25% of PTT, 10% to 15% of PPE, 2% to 4% of E-MA-GMA, 5% to 8% of ACR, 8% to 12% of glass fibers, 2% to 8% of nano-montmorillonite, 0.5% to 2% of light stabilizer, 0.1% to 0.5% of antioxidant, and 0.1% to 1% of TAF. The surface of glass fibers is subjected to the modified treatment by a silane coupling agent. The diameter and the length of the glass fibers are within the ranges of 8-12 mum and 3-6 mm respectively. According to the invention, the advantages of PET and PTT materials are integrated. Meanwhile, the material is better in mechanical performance and heat resistance, good in dimensional stability, low in warpage, strong in chemical resistance, low in cost and easy to popularize.

Description

A kind of fiberglass reinforced PET/PTT/PPE matrix material

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of fiberglass reinforced PET/PTT/PPE matrix material.

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 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, the easy buckling deformation but PET/PTT/PPE is heated, and resistance to electric trace index (CTI) is lower, under low temperature mould, article surface is coarse, and these will have influence on the use properties of PET/PTT/PPE in the parties concerned.

Summary of the invention

The object of the present invention is to provide the fiberglass reinforced PET/PTT/PPE matrix material that a kind of mechanical property is good, buckling deformation is low, outward appearance is good and ageing resistance is strong.

The technical solution adopted for the present invention to solve the technical problems is: a kind of fiberglass reinforced PET/PTT/PPE matrix material, and its component by mass percent proportioning is: PET 25% ~ 55%, PTT 15% ~ 25%, PPE 10% ~ 15%, E-MA-GMA 2% ~ 4%, ACR 5% ~ 8%, glass fibre 8% ~ 12%, nano imvite 2% ~ 8%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, TAF 0.1% ~ 1%.

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

Described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 0.9dL/g.

Described PPE is the polyphenylene oxide of limiting viscosity 0.4 ~ 0.5dL/g.

Described E-MA-GMA is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.

Described ACR is Methylacrylate-Acrylate Copolymer.

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 nano imvite be surface through silane coupling agent activation treatment and particle diameter at the sodium-based montmorillonite powder of 25nm ~ 75nm.

Described photostabilizer is ESCALOL 567 or Octabenzone.

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 TAF is modification ethylene bis-fatty acid amides.

The preparation method of above-mentioned a kind of fiberglass reinforced 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, stand-by;

(2), taking dry PTT by weight ratio adds in super mixer, and add ACR, nano imvite, photostabilizer, oxidation inhibitor, TAF by weight ratio, 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;

(3), taking dry PET and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add E-MA-GMA 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of fiberglass reinforced 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, but also improves mechanical strength and resistance toheat, its good stability of the dimension, low warpage, and chemical resistant properties is strong, and cost is low, is easy to promote.

Embodiment

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

Embodiment 1:

A kind of fiberglass reinforced PET/PTT/PPE matrix material, its component by mass percent proportioning is: PET 25%, PTT 25%, PPE 15%, E-MA-GMA 4%, ACR 8%, glass fibre 12%, nano imvite 8%, ESCALOL 567 2%, oxidation inhibitor 0.5%, TAF 0.5%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 0.9dL/g, described PPE is the polyphenylene oxide of limiting viscosity 0.4 ~ 0.5dL/g, 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 nano imvite is that surface is through silane coupling agent activation treatment, and particle diameter is at the sodium-based montmorillonite powder of 25nm ~ 75nm, 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, PTT and PPE in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by, (2), taking dry PTT by weight ratio adds in super mixer, and add ACR, nano imvite, ESCALOL 567, oxidation inhibitor, TAF by weight ratio, 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, (3), taking dry PET and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add E-MA-GMA 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of fiberglass reinforced PET/PTT/PPE matrix material of the present invention.

Embodiment 2:

A kind of fiberglass reinforced PET/PTT/PPE matrix material, its component by mass percent proportioning is: PET 55%, PTT 15%, PPE 10%, E-MA-GMA 3%, ACR 5%, glass fibre 8%, nano imvite 3%, Octabenzone 0.5%, oxidation inhibitor 0.2%, TAF 0.3%, the polyethylene terephthalate of described PET to be intrinsic viscosity be 0.8 ~ 1.1dL/g, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 0.9dL/g, described PPE is the polyphenylene oxide of limiting viscosity 0.4 ~ 0.5dL/g, 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 nano imvite is that surface is through silane coupling agent activation treatment, and particle diameter is at the sodium-based montmorillonite powder of 25nm ~ 75nm, 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, PTT and PPE in forced air circulation baking oven at 110 DEG C ~ 120 DEG C temperature dry 6 ~ 8 hours, stand-by, (2), taking dry PTT by weight ratio adds in super mixer, and add ACR, nano imvite, Octabenzone, oxidation inhibitor, TAF by weight ratio, 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, (3), taking dry PET and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add E-MA-GMA 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of fiberglass reinforced PET/PTT/PPE matrix material of the present invention.

Claims (6)

1. a fiberglass reinforced PET/PTT/PPE matrix material, it is characterized in that, its component by mass percent proportioning is: PET 25% ~ 55%, PTT 15% ~ 25%, PPE 10% ~ 15%, E-MA-GMA 2% ~ 4%, ACR 5% ~ 8%, glass fibre 8% ~ 12%, nano imvite 2% ~ 8%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, TAF 0.1% ~ 1%.

2. a kind of fiberglass reinforced PET/PTT/PPE matrix material according to claim 1, 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. a kind of fiberglass reinforced PET/PTT/PPE matrix material according to claim 1, is characterized in that, described nano imvite be surface through silane coupling agent activation treatment and particle diameter at the sodium-based montmorillonite powder of 25nm ~ 75nm.

4. a kind of fiberglass reinforced PET/PTT/PPE matrix material according to claim 1, it is characterized in that, described photostabilizer is ESCALOL 567 or Octabenzone.

5. a kind of fiberglass reinforced PET/PTT/PPE matrix material 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.

6. the preparation method of a kind of fiberglass reinforced 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, stand-by;

(2), taking dry PTT by weight ratio adds in super mixer, and add ACR, nano imvite, photostabilizer, oxidation inhibitor, TAF by weight ratio, 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;

(3), taking dry PET and PPE by weight ratio adds in super mixer, add the PTT composite master batch that step (2) is obtained again, and add E-MA-GMA 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 ~ 500r/min, processing temperature is 210 DEG C ~ 280 DEG C scopes, then extrude, granulation, obtain a kind of fiberglass reinforced PET/PTT/PPE matrix material of the present invention.