CN104861535A - High-performance polytrimethylene terephthalate enhanced composition - Google Patents

Abstract

The invention discloses a high-performance polytrimethylene terephthalate enhanced composition. The composition comprises the following ingredients, by weight, 65%-85% of PTT, 5%-15% of modified carbon fibers, 4%-10% of flame retardant, 3%-8% of flexibilizers, 0.5%-1% of anti-hydrolysis agents, 0.1%-0.5% of anti-oxidants and 0.1%-1% of lubricants. The modified carbon fibers are short cut polyacrylonitrile carbon fibers with surfaces processed by an oxidizing agent perchloric acid solution. The flame retardant is one selected from decabromodiphenylethane, cyanuric acid melamine and polysulfonyldiphenylene phenyl phosphonate. The beneficial effects are that the composition has advantages of high intensity, high flame retardation, high impact resistance, high heat resistance and the like, the chemical stability is good, the cost is low, shaping is good, the adaptability is strong and popularization is easy.

Description

A kind of high-performance poly propylene glycol ester terephthalate enhancing composition

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of high-performance poly propylene glycol ester terephthalate enhancing composition.

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 PTT is used alone exists that its intensity is not high, dimensional stability is bad, the problem of poor fire, shock resistance deficiency, limit its application.

Summary of the invention

The object of the present invention is to provide that a kind of intensity is high, good toughness and the excellent high-performance poly propylene glycol ester terephthalate enhancing composition of flame retardant resistance.

The technical solution adopted for the present invention to solve the technical problems is: a kind of high-performance poly propylene glycol ester terephthalate enhancing composition, and its component by mass percent proportioning is: PTT 65% ~ 85%, modified carbon fiber 5% ~ 15%, fire retardant 4% ~ 10%, toughner 3% ~ 8%, hydrolysis-resisting agent 0.5% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

Described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.2dL/g.

Described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.

Described fire retardant is the one in TDE, melamine cyanurate, polyphenylene phosphonic acids sulfobenzide ester.

Described toughner is the one in ethylene-octene copolymer, styrene-butadiene-styrene block copolymer, styrene-ethylene-butylene-styrene block copolymer, terpolymer EP rubber, paracril, thermoplastic polyester elastomer TPEE, thermoplastic polyurethane elastomer.

Described hydrolysis-resisting agent is carbodiimide.

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, Zinic stearas, pentaerythritol stearate.

The preparation method of above-mentioned a kind of high-performance poly propylene glycol ester terephthalate enhancing composition, comprises the following steps:

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

(2), by short polyacrylonitrile carbon fiber of cutting add 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then is placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, stand-by;

(3), taking dry PTT by weight ratio adds in high-speed mixer, add the fire retardant, toughner, hydrolysis-resisting agent, oxidation inhibitor and the lubricant that take by weight ratio simultaneously, and add the product that step (2) obtains by weight ratio, make to stir 3 ~ 15 minutes together, discharging after fully mixing;

(4), the compound of step (3) is added in twin screw extruder, extrudes after melt blending at 210 DEG C ~ 280 DEG C, cooling granulation, then dry, obtain a kind of high-performance poly propylene glycol ester terephthalate enhancing composition of the present invention.

The invention has the beneficial effects as follows, the present invention has the advantages such as high strength, high flame retardant, high-impact and high heat resistance, and chemical stability is good, and cost is low, forming, strong adaptability, is easy to promote.

Embodiment

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

Embodiment 1:

A kind of high-performance poly propylene glycol ester terephthalate enhancing composition, its component by mass percent proportioning is: PTT 66%, modified carbon fiber 15%, TDE 10%, ethylene-octene copolymer 8%, carbodiimide 0.5%, antioxidant 1010 0.1%, calcium stearate 0.4%, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.2dL/g, and described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.

Preparation method: (1), PTT is placed in the drying about 6 ~ 8 hours at 110 DEG C ~ 120 DEG C temperature of forced air circulation baking oven, stand-by; (2), by short polyacrylonitrile carbon fiber of cutting add 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then is placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, stand-by; (3), taking dry PTT by weight ratio adds in high-speed mixer, add the TDE, ethylene-octene copolymer, carbodiimide, antioxidant 1010, the calcium stearate that take by weight ratio simultaneously, and add the product that step (2) obtains by weight ratio, make to stir 3 ~ 15 minutes together, discharging after fully mixing; (4), the compound of step (3) is added in twin screw extruder, extrudes after melt blending at 210 DEG C ~ 280 DEG C, cooling granulation, then dry, obtain a kind of high-performance poly propylene glycol ester terephthalate enhancing composition of the present invention.

Embodiment 2:

A kind of high-performance poly propylene glycol ester terephthalate enhancing composition, its component by mass percent proportioning is: the compound 0.2% of PTT 79%, modified carbon fiber 10%, melamine cyanurate 5%, thermoplastic polyurethane elastomer 5%, carbodiimide 0.5%, antioxidant 1076 and irgasfos 168, pentaerythritol stearate 0.3%, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.2dL/g, and described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.

Preparation method: (1), PTT is placed in the drying about 6 ~ 8 hours at 110 DEG C ~ 120 DEG C temperature of forced air circulation baking oven, stand-by; (2), by short polyacrylonitrile carbon fiber of cutting add 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then is placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, stand-by; (3), taking dry PTT by weight ratio adds in high-speed mixer, add compound, the pentaerythritol stearate of melamine cyanurate, thermoplastic polyurethane elastomer, carbodiimide, antioxidant 1076 and the irgasfos 168 taken by weight ratio simultaneously, and add the product that step (2) obtains by weight ratio, make to stir 3 ~ 15 minutes together, discharging after fully mixing; (4), the compound of step (3) is added in twin screw extruder, extrudes after melt blending at 210 DEG C ~ 280 DEG C, cooling granulation, then dry, obtain a kind of high-performance poly propylene glycol ester terephthalate enhancing composition of the present invention.

Claims (8)

1. a high-performance poly propylene glycol ester terephthalate enhancing composition, it is characterized in that, its component by mass percent proportioning is: PTT 65% ~ 85%, modified carbon fiber 5% ~ 15%, fire retardant 4% ~ 10%, toughner 3% ~ 8%, hydrolysis-resisting agent 0.5% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.

2. a kind of high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, is characterized in that, described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.

3. a kind of high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, is characterized in that, described fire retardant is the one in TDE, melamine cyanurate, polyphenylene phosphonic acids sulfobenzide ester.

4. a kind of high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, it is characterized in that, described toughner is the one in ethylene-octene copolymer, styrene-butadiene-styrene block copolymer, styrene-ethylene-butylene-styrene block copolymer, terpolymer EP rubber, paracril, thermoplastic polyester elastomer TPEE, thermoplastic polyurethane elastomer.

5. a kind of high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, it is characterized in that, described hydrolysis-resisting agent is carbodiimide.

6. a kind of high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, it 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 high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, it is characterized in that, described lubricant is the one in calcium stearate, Zinic stearas, pentaerythritol stearate.

8. the preparation method of a kind of high-performance poly propylene glycol ester terephthalate enhancing composition according to claim 1, is characterized in that, comprise the following steps:

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

(2), by short polyacrylonitrile carbon fiber of cutting add 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then is placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, stand-by;

(3), taking dry PTT by weight ratio adds in high-speed mixer, add the fire retardant, toughner, hydrolysis-resisting agent, oxidation inhibitor and the lubricant that take by weight ratio simultaneously, and add the product that step (2) obtains by weight ratio, make to stir 3 ~ 15 minutes together, discharging after fully mixing;

(4), the compound of step (3) is added in twin screw extruder, extrudes after melt blending at 210 DEG C ~ 280 DEG C, cooling granulation, then dry, obtain a kind of high-performance poly propylene glycol ester terephthalate enhancing composition of the present invention.