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PTT nano-composite material

A nano-composite material, PTT70% technology, applied in the field of polymer materials, can solve the problems of low notch impact strength, high notch sensitivity, low heat resistance, etc., to achieve good molding appearance, simple preparation process, chemical resistance and stability. strong effect

Inactive Publication Date: 2015-08-19
王妮娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unmodified PTT has the defects of low notched impact strength, high notch sensitivity, and low heat resistance, which greatly limits the wider application of PTT in various fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of PTT nano-composite material, its component ratio by mass percentage is: PTT 76%, nano-calcium carbonate 15%, aluminum-titanium composite coupling agent 0.3%, methacrylate-acrylate copolymer 8%, antioxidant 0.2% pentaerythritol stearate and 0.5% pentaerythritol stearate. The antioxidant is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 with a mass ratio of 1:1.

[0020] Preparation method: (1), put PTT in a forced air circulation oven and dry at 110°C-120°C for 6-8 hours, dry nano-calcium carbonate at 60°C-80°C for 1-2 hours, and set aside ; (2) Weigh the dry nano-calcium carbonate according to the weight ratio and add it to the high-speed mixer with a barrel temperature of 80°C-120°C and a speed of 3000-6000r / min, and add the aluminum-titanium composite couple according to the weight ratio Mixing agent, stir together for 30-45 minutes, after the surface of nano-calcium carbonate is uniformly infiltrated and fully modified, cool ...

Embodiment 2

[0022] A kind of PTT nano-composite material, its component ratio by mass percentage is: PTT 74%, nano-aluminum hydroxide 20%, titanate coupling agent 0.3%, glycidyl methacrylate grafted styrene-ethylene- Butadiene-styrene copolymer 5%, antioxidant 0.1%, pentaerythritol stearate 0.6%, described antioxidant is hindered phenolic antioxidant 1010 and phosphite antioxidant of mass ratio 1:1 A compound of oxygen agent 168.

[0023] Preparation method: (1), put PTT in a forced air circulation oven and dry at 110°C-120°C for 6-8 hours, dry nano-aluminum hydroxide at 60°C-80°C for 1-2 hours, and wait for (2) Weigh dry nano-aluminum hydroxide by weight and add it to a high-speed mixer with a cylinder temperature of 80°C-120°C and a speed of 3000-6000r / min, and add titanic acid according to weight ratio Ester coupling agent, stir together for 30-45 minutes, after the surface of nano-aluminum hydroxide is evenly infiltrated and fully modified, cool to below 40°C and discharge for use; (...

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Abstract

The invention discloses a PTT nano-composite material, which comprises the following components by mass: 70%-90% of PTT, 0.5%-20% of nanoparticle, 0.1%-0.5% of a coupling agent, 3%-10% of a compatibilizer, 0.1%-0.5% of an antioxidant, and 0.1%-1% of a lubricant. The nanoparticle is one of nano-calcium carbonate, nano-barium sulfate, nano-montmorillonite, nano-kaolin, nano-titanium dioxide, nano-silicon dioxide, nano-zinc oxide, nanometer antimony doped tin dioxide, nano-magnesium hydroxide, and nano-aluminum hydroxide. The PTT nano-composite material provided by the invention has the respective advantages of PTT and nanoparticle blending modification, has excellent mechanical properties, processability and heat resistance, and the product has good molding appearance, strong chemical resistant stability, wide adaptability, and simple preparation process, thus being conducive to industrial production.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PTT nanocomposite material. Background technique [0002] Polytrimethylene terephthalate (PTT) is a promising new type of polyester polymer material produced by polycondensation of terephthalic acid and 1,3-propylene glycol. PTT is a semi-crystalline high polymer with high melting temperature and glass transition temperature. It has good wear resistance, heat resistance and chemical resistance, and is widely used in synthetic fibers, films and engineering plastics. . However, unmodified PTT has the defects of low notched impact strength, high notch sensitivity, and low heat resistance, which greatly limit the wider application of PTT in various fields. Nanoparticles can not only significantly improve the mechanical properties of polymers such as strength, rigidity, and toughness, but also improve the functional properties of plastics such as density, light transmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K9/04C08K3/26C08K3/30C08K3/34C08K3/22C08K3/36C08K3/08B29B9/06B29C47/92B29C48/92
Inventor 不公告发明人
Owner 王妮娜
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