CN104861452A - PTT/kaolin blend and preparation method therefor - Google Patents

Abstract

The invention discloses a PTT/kaolin blend and a preparation method therefor. The PTT/kaolin blend comprises the following ingredients, by weight, 70%-90% of PTT, 5%-15% of kaolin, 2%-5% of polyethylene glycol, 0.5%-2% of antistatic agents, 0.1%-0.5% of coupling agents, 0.1%-0.5% of anti-oxidants, 0.1%-1% of lubricants and 3%-8% of flame retardant. The kaolin is kaolin with a vertical thickness of 20-50 nanometers and with a sheet layer size of 300-500 nanometers. The flame retardant is polysulfonyldiphenylene phenyl phosphonate. The beneficial effects are that the PTT/kaolin blend has good flame retardation performance and chemical resistance, the heat resistance is good, the intensity is high, the antistatic performance is good, the preparation technology is simple, the production cost is low, and popularization is easy.

Description

A kind of PTT/ kaolin blend and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, specifically a kind of PTT/ kaolin blend and preparation method thereof.

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 problems such as there is its intensity is not high, thermotolerance is bad, poor fire, limit its application.Kaolin is by a kind of hydrous aluminum silicate minerals matter of natural clay mineral through screening, processing, usually can be used as the weighting agent of thermoplasticity and thermoset plastic articles, its outstanding feature is easy dispersion, resistant to chemical media, water absorbability is little and electrical insulating property is excellent, also has toughener and nucleator effect concurrently simultaneously.

Summary of the invention

The object of the present invention is to provide a kind of PTT/ kaolin blend and preparation method thereof.

The technical solution adopted for the present invention to solve the technical problems is: a kind of PTT/ kaolin blend, and its component by mass percent proportioning is: PTT 70% ~ 90%, kaolin 5% ~ 15%, polyoxyethylene glycol 2% ~ 5%, static inhibitor 0.5% ~ 2%, coupling agent 0.1% ~ 0.5%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, fire retardant 3% ~ 8%.

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

Described kaolin is that longitudinal thickness is at 20 ~ 50nm, the nano kaoline of lamella size within the scope of 300 ~ 500nm.

Described static inhibitor is the one in fatty acid polyglycol ester, polyethylene glycol alkyl ether, N, N-polyalkylene glycol alkyl amine, glycerol monostearate.

Described coupling agent is γ-aminopropyltrimethoxysilane.

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 sodium stearate, calcium stearate, ethylene bis stearamide, pentaerythritol stearate.

Described fire retardant is polyphenylene phosphonic acids sulfobenzide ester.

The preparation method of above-mentioned a kind of PTT/ kaolin blend, 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) take kaolin and coupling agent, by weight ratio, add a material temperature degree in the high-speed mixer of 80 DEG C ~ 120 DEG C, 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 high-speed mixer, add the polyoxyethylene glycol, static inhibitor, oxidation inhibitor, lubricant and the fire retardant that take by weight ratio simultaneously, and add the product that step (2) obtains, 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 180 DEG C ~ 260 DEG C, cooling granulation, then dry, obtain a kind of PTT/ kaolin blend of the present invention.

The invention has the beneficial effects as follows, the present invention has good flame-retardance energy and chemical resistance, and resistance toheat is good, and intensity is high, and antistatic property is good, and preparation technology is simple, and production cost is low, 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 PTT/ kaolin blend, its component by mass percent proportioning is: PTT 72%, kaolin 15%, polyoxyethylene glycol 3%, polyethylene glycol alkyl ether 1.5%, γ-aminopropyltrimethoxysilane 0.2%, antioxidant 1010 0.1%, calcium stearate 0.2%, polyphenylene phosphonic acids sulfobenzide ester 8%, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.2dL/g, and described kaolin is that longitudinal thickness is at 20 ~ 50nm, the nano kaoline of lamella size within the scope of 300 ~ 500nm.

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) take kaolin and γ-aminopropyltrimethoxysilane, by weight ratio, add a material temperature degree in the high-speed mixer of 80 DEG C ~ 120 DEG C, 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 high-speed mixer, add the polyoxyethylene glycol, polyethylene glycol alkyl ether, antioxidant 1010, calcium stearate, the polyphenylene phosphonic acids sulfobenzide ester that take by weight ratio simultaneously, and add the product that step (2) obtains, 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 180 DEG C ~ 260 DEG C, cooling granulation, then dry, obtain a kind of PTT/ kaolin blend of the present invention.

Embodiment 2:

A kind of PTT/ kaolin blend, its component by mass percent proportioning is: the compound 0.1% of PTT 82%, kaolin 10%, polyoxyethylene glycol 2%, glycerol monostearate 0.5%, γ-aminopropyltrimethoxysilane 0.1%, antioxidant 1076 and irgasfos 168, pentaerythritol stearate 0.3%, polyphenylene phosphonic acids sulfobenzide ester 5%, described PTT is the Poly(Trimethylene Terephthalate) of limiting viscosity 0.7 ~ 1.2dL/g, and described kaolin is that longitudinal thickness is at 20 ~ 50nm, the nano kaoline of lamella size within the scope of 300 ~ 500nm.

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) take kaolin and γ-aminopropyltrimethoxysilane, by weight ratio, add a material temperature degree in the high-speed mixer of 80 DEG C ~ 120 DEG C, 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 high-speed mixer, add the compound of polyoxyethylene glycol, glycerol monostearate, antioxidant 1076 and the irgasfos 168 taken by weight ratio, pentaerythritol stearate, polyphenylene phosphonic acids sulfobenzide ester simultaneously, and add the product that step (2) obtains, 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 180 DEG C ~ 260 DEG C, cooling granulation, then dry, obtain a kind of PTT/ kaolin blend of the present invention.

Claims (8)

1. a PTT/ kaolin blend, it is characterized in that, its component by mass percent proportioning is: PTT 70% ~ 90%, kaolin 5% ~ 15%, polyoxyethylene glycol 2% ~ 5%, static inhibitor 0.5% ~ 2%, coupling agent 0.1% ~ 0.5%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, fire retardant 3% ~ 8%.

2. a kind of PTT/ kaolin blend according to claim 1, is characterized in that, described kaolin is that longitudinal thickness is at 20 ~ 50nm, the nano kaoline of lamella size within the scope of 300 ~ 500nm.

3. a kind of PTT/ kaolin blend according to claim 1, is characterized in that, described static inhibitor is the one in fatty acid polyglycol ester, polyethylene glycol alkyl ether, N, N-polyalkylene glycol alkyl amine, glycerol monostearate.

4. a kind of PTT/ kaolin blend according to claim 1, it is characterized in that, described coupling agent is γ-aminopropyltrimethoxysilane.

5. a kind of PTT/ kaolin blend 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.

6. a kind of PTT/ kaolin blend according to claim 1, it is characterized in that, described lubricant is the one in sodium stearate, calcium stearate, ethylene bis stearamide, pentaerythritol stearate.

7. a kind of PTT/ kaolin blend according to claim 1, is characterized in that, described fire retardant is polyphenylene phosphonic acids sulfobenzide ester.

8. the preparation method of a kind of PTT/ kaolin blend 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) take kaolin and coupling agent, by weight ratio, add a material temperature degree in the high-speed mixer of 80 DEG C ~ 120 DEG C, 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 high-speed mixer, add the polyoxyethylene glycol, static inhibitor, oxidation inhibitor, lubricant and the fire retardant that take by weight ratio simultaneously, and add the product that step (2) obtains, 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 180 DEG C ~ 260 DEG C, cooling granulation, then dry, obtain a kind of PTT/ kaolin blend of the present invention.