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Reinforcing and stiffening complex based PTT polyesters

A compound, PTT70% technology, applied in the field of reinforced and reinforced compounds, can solve the problems of low dimensional stability, poor heat resistance, low strength, etc., achieve excellent electrical properties, good heat resistance, and improve surface wetting The effect of sex and cohesion

Inactive Publication Date: 2015-08-26
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polytrimethylene terephthalate (PTT), as a new type of polyester polymer material with excellent comprehensive properties, has been widely used in the fields of fibers, films, engineering plastics, etc., but PTT has poor heat resistance when used alone , low dimensional stability and low strength, which limit its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A reinforced and stiffened compound based on PTT polyester, its components are proportioned by mass percentage: PTT 75%, modified nano-carbon fiber 15%, wollastonite 6%, polyethylene glycol 3.5%, aluminum-titanium composite 0.1% coupling agent, 0.1% antioxidant 1010, 0.3% pentaerythritol stearate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7-1.5dL / g, and the modified nano-carbon fiber is the surface Nano-carbon fibers treated with a mixed acid solution of oxidant sulfuric acid and nitric acid, the wollastonite is fibrous wollastonite with an average diameter of 6-25 μm, a length of 10-500 μm, and an aspect ratio of 3-100.

[0020] Preparation method: (1), put PTT in a forced air circulation oven and dry at 110°C-120°C for about 6-8 hours, dry wollastonite at 80°C-120°C for 30-45 minutes, and wait (2) Preparation of modified carbon nanofibers: add carbon nanofibers to a mixed acid solution of 98% sulfuric acid and 60% nitric acid at a volu...

Embodiment 2

[0022] A reinforced and stiffened compound based on PTT polyester, the components of which are: 70% to 90% of PTT, 10% of modified nano-carbon fiber, 4% of wollastonite, 2.5% of polyethylene glycol, 0.1% of aluminum-titanium composite coupling agent, 0.1% of the compound of antioxidant 1076 and antioxidant 168, 0.3% of pentaerythritol stearate, and the PTT is polyterephthalate with an intrinsic viscosity of 0.7-1.5dL / g Propylene glycol formate, the modified nano-carbon fiber is a nano-carbon fiber whose surface has been treated with a mixed acid solution of oxidant sulfuric acid and nitric acid, and the wollastonite has an average diameter of 6-25 μm, a length of 10-500 μm, and an aspect ratio of 3-100 range of fibrous wollastonite.

[0023] Preparation method: (1), put PTT in a forced air circulation oven and dry at 110°C-120°C for about 6-8 hours, dry wollastonite at 80°C-120°C for 30-45 minutes, and wait (2) Preparation of modified carbon nanofibers: add carbon nanofibers ...

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Abstract

The invention discloses a reinforcing and stiffening complex based PTT polyesters. The reinforcing and stiffening complex comprises the following ingredients, by weight, 70%-90% of PTT, 5%-15% of modified carbon nanofibers, 3%-8% of wollastonite, 2%-5% of polyethylene glycol, 0.1%-0.5% of aluminum titanium composite coupling agents, 0.1%-0.5% of anti-oxidants and 0.1%-1% of lubricants. The modified carbon nanofibers are carbon nanofibers with surfaces processed by a mixed acid solution of oxidizing agents sulfuric acid and nitric acid. The wollastonite is fibrous wollastonite with an average diameter of 6-25 micrometers, with a length of 10-500 micrometers and with a length / diameter ratio of 3-100. The beneficial effects are that the carbon nanofibers are subjected to oxidation modification processing, thus the surfaces of the carbon nanofibers have a lot of oxygen-containing active groups, therefor the surface wellability and adhesion stress of the carbon nanofibers are raised, thus the complex has substantial reinforcing and stiffening effects, and the heat resistance is good.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a reinforced rigid compound based on PTT polyester. Background technique [0002] Polytrimethylene terephthalate (PTT), as a new type of polyester polymer material with excellent comprehensive properties, has been widely used in the fields of fibers, films, engineering plastics, etc., but PTT has poor heat resistance when used alone , Low dimensional stability and low strength limit its application. Contents of the invention [0003] The object of the present invention is to provide a PTT polyester-based reinforced and stiffened compound with mechanical properties and low cost. [0004] The technical solution adopted by the present invention to solve the technical problem is: a reinforced and stiffened composite based on PTT polyester, the components of which are proportioned by mass percentage: PTT 70%-90%, modified nano-carbon fiber 5%- 15%, wollastonite 3%-8%, po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L71/08C08K13/06C08K9/02C08K7/06C08K3/04C08K9/04C08K7/10C08K5/134C08K5/526
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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