CN104845279A

CN104845279A - Halogen-free and flame retardant PET/PTT/PETG material and preparation method thereof

Info

Publication number: CN104845279A
Application number: CN201410789662.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-19
Filing date: 2014-12-19
Publication date: 2015-08-19

Abstract

The invention discloses a halogen-free and flame retardant PET/PTT/PETG material and a preparation method thereof. The halogen-free and flame retardant PET/PTT/PETG material provided by the invention is composed of the following components by mass: 25%-50% of PET, 20%-25% of PTT, 10%-20% of PETG, 2%-4% of a compatilizer, 6%-10% of a halogen-free flame retardant, 3%-8% of a plasticizer, 0.5%-1% of a nucleating agent, 0.1%-0.5% of an antioxidant, 0.1%-1% of a lubricant, and 8%-12% of glass fiber. The flame retardant is a compound of PSPPP, polydimethylsiloxane and nano-magnesium hydroxide in a mass ratio of 1:1:2. The halogen-free and flame retardant PET/PTT/PETG material integrates the respective advantages of PET, PTT and PETG, has excellent flame retardance and high heat resistance, and is in line with no halogen, low smoke, environmental protection and UL94 V-0 grade flame retardant requirements.

Description

Halogen-free flameproof PET/PTT/PETG material and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of halogen-free flameproof PET/PTT/PETG material and preparation method thereof.

Background technology

Polyethylene terephthalate (PET)/Poly(Trimethylene Terephthalate) (PTT) belongs to a kind of novel high molecular plastic alloy material, it has the performances such as excellent forming process, shock resistance, chemical-resistant resistance, thus will have broad application prospects in automobile, electric, the field such as household electrical appliances, fiber.But the mechanical property of PET/PTT is unstable, hot bad, the poor fire of resistance to height etc., will significantly limit its effect.In order to promote the performance of PET/PTT, often need to add three components in PET/PTT, to obtain the composite system having much practical value.Polyethylene terephthalate-1,4-cyclohexanedimethanoester ester (PETG) is by terephthalic acid, ethylene glycol and 1, a kind of non-crystalline type copolyesters of 4-cyclohexanedimethanol three kinds of monomer ester-interchange methods polycondensation, it has, and transparency is high, glossiness is high, a kind of transparent engineering plastics completely newly, and the shock strength excellence of PETG, good heat resistance, mar-proof, ageing-resistant, anti-electrostatic, chemical resistant properties excellence, hydrolytic resistance, good fluidity, strong coloring force, be easy to forming process, wholesomeness is good, belongs to environmentally-friendly plastic of new generation.Therefore, PET/PTT/PETG material prepared by PETG and PET/PTT blending and modifying, performance can be learnt from other's strong points to offset one's weaknesses, and there is excellent over-all properties and good application prospect, but PET/PTT/PETG is the same with other high molecule plastic material, still there is the problem that self flame retardance is inadequate, which limits its application in high flame retardant field.

Summary of the invention

The object of the present invention is to provide a kind of halogen-free flameproof PET/PTT/PETG material with excellent comprehensive performance and preparation method thereof.

The technical solution adopted for the present invention to solve the technical problems is: halogen-free flameproof PET/PTT/PETG material, and its component by mass percent proportioning is: PET 25% ~ 50%, PTT 20% ~ 25%, PETG 10% ~ 20%, compatilizer 2% ~ 4%, halogen-free flame retardants 6% ~ 10%, softening agent 3% ~ 8%, nucleator 0.5% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, glass fibre 8% ~ 12%.

Described PET is polyethylene terephthalate.

Described PTT is Poly(Trimethylene Terephthalate).

Described PETG is polyethylene terephthalate-1,4 cyclohexane dimethanol ester.

Described compatilizer is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.

The compound of the polyphenylene phosphonic acids sulfobenzide ester of described fire retardant to be mass ratio be 1:1:2, polydimethylsiloxane and nano-sized magnesium hydroxide.

Described softening agent is polybutylene terephthalate-polyethylene oxide-poly(propylene oxide) triblock copolymer.

Described nucleator is the nano silicon of mass ratio 4:1 and the compound of Sodium Benzoate.

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 lubricant is modification ethylene bis-fatty acid amides.

Described glass fibre be surface through silane coupling agent process and mean diameter at the alkali-free short glass fiber of 4 ~ 17 μm.

The preparation method of above-mentioned halogen-free flameproof PET/PTT/PETG material, comprises the following steps:

(1), each component is taken by weight ratio;

(2), except glass fibre, other component is added high-speed mixer and mixing 3 ~ 5 minutes;

(3), discharging, the raw material of mixing added the main spout of twin screw extruder and add glass fibre by weight ratio from the side spout of twin screw extruder and carry out melting extruding pelletization, control screw speed is 150 ~ 500r/min, temperature is 210 DEG C ~ 280 DEG C, obtains halogen-free flameproof PET/PTT/PETG material of the present invention.

The invention has the beneficial effects as follows, the present invention combines PET, PTT and PETG advantage separately, and there is excellent flame retardant resistance and high thermotolerance, meet the flame-retardancy requirements of Halogen, low cigarette, environmental protection and UL94 V-0 level, improve effect and Application Areas, thus there is good practical value and promotion prospect.

Embodiment

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

Embodiment 1:

A kind of halogen-free flameproof PET/PTT/PETG material, its component by mass percent proportioning is: PET 25%, PTT 25%, PETG 20%, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer 3%, halogen-free flame retardants 10%, polybutylene terephthalate-polyethylene oxide-poly(propylene oxide) triblock copolymer 8%, nucleator 1%, oxidation inhibitor 0.5%, modification ethylene bis-fatty acid amides 0.5%, glass fibre 12%, the polyphenylene phosphonic acids sulfobenzide ester of described fire retardant to be mass ratio be 1:1:2, the compound of polydimethylsiloxane and nano-sized magnesium hydroxide, described nucleator is the nano silicon of mass ratio 4:1 and the compound of Sodium Benzoate, described oxidation inhibitor is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168, described glass fibre is that surface is through silane coupling agent process, and mean diameter is at the alkali-free short glass fiber of 4 ~ 17 μm.

Preparation method: (1), take each component by weight ratio; (2), except glass fibre, other component is added high-speed mixer and mixing 3 ~ 5 minutes; (3), discharging, the raw material of mixing added the main spout of twin screw extruder and add glass fibre by weight ratio from the side spout of twin screw extruder and carry out melting extruding pelletization, control screw speed is 150 ~ 500r/min, temperature is 210 DEG C ~ 280 DEG C, obtains halogen-free flameproof PET/PTT/PETG material of the present invention.

Embodiment 2:

A kind of halogen-free flameproof PET/PTT/PETG material, its component by mass percent proportioning is: PET 50%, PTT 20%, PETG 10%, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer 2%, halogen-free flame retardants 6%, polybutylene terephthalate-polyethylene oxide-poly(propylene oxide) triblock copolymer 3%, nucleator 0.5%, oxidation inhibitor 0.1%, modification ethylene bis-fatty acid amides 0.4%, glass fibre 8%, the polyphenylene phosphonic acids sulfobenzide ester of described fire retardant to be mass ratio be 1:1:2, the compound of polydimethylsiloxane and nano-sized magnesium hydroxide, described nucleator is the nano silicon of mass ratio 4:1 and the compound of Sodium Benzoate, described oxidation inhibitor is the Hinered phenols antioxidant 1076 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168, described glass fibre is that surface is through silane coupling agent process, and mean diameter is at the alkali-free short glass fiber of 4 ~ 17 μm.

Claims

1. a halogen-free flameproof PET/PTT/PETG material, it is characterized in that, its component by mass percent proportioning is: PET 25% ~ 50%, PTT 20% ~ 25%, PETG 10% ~ 20%, compatilizer 2% ~ 4%, halogen-free flame retardants 6% ~ 10%, softening agent 3% ~ 8%, nucleator 0.5% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, glass fibre 8% ~ 12%.

2. halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, described compatilizer is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.

3. halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, the compound of the polyphenylene phosphonic acids sulfobenzide ester of described fire retardant to be mass ratio be 1:1:2, polydimethylsiloxane and nano-sized magnesium hydroxide.

4. halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, described softening agent is polybutylene terephthalate-polyethylene oxide-poly(propylene oxide) triblock copolymer.

5. halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, described nucleator is the nano silicon of mass ratio 4:1 and the compound of Sodium Benzoate.

6. halogen-free flameproof PET/PTT/PETG 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.

7. halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, described lubricant is modification ethylene bis-fatty acid amides.

8. halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, described glass fibre be surface through silane coupling agent process and mean diameter at the alkali-free short glass fiber of 4 ~ 17 μm.

9. the preparation method of halogen-free flameproof PET/PTT/PETG material according to claim 1, is characterized in that, comprise the following steps:

(1), each component is taken by weight ratio;