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Rare-earth-doped modification polyester materials and process for preparing same

A technology of modified polyester and rare earth doping is applied in the field of rare earth doped modified polyester material and its preparation, and can solve the problems such as the problem of uniform dispersion of nano-powders not being well solved and the like

Inactive Publication Date: 2005-09-21
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1990s, nano-inorganic powders, including nano-rare earth metal oxides, have been used to modify large-scale organic synthetic resins at home and abroad, and good results have been obtained. However, the problem of uniform dispersion of nano-powders in organic synthetic resins has not been well resolved so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 40-300nm TiO 2 25.0 grams (2.5%), nano-SiO 2 Add 25.0 grams (2.5%) into 1000.0 grams of butyl acetate dissolved with 5.0 grams (0.5%) of triisooctyloxypraseodymium and 10.0 grams (1.0%) of nitrile rubber, ultrasonic treatment for 30 minutes, and add 40.0 grams (4.0 %) acrylonitrile-butadiene rubber, stir to make it dissolve completely evenly, evaporate to butyl acetate under reduced pressure, obtain the TiO modified by 105.0 grams of rare earth alkoxide compounds 2 , SiO 2 - Nitrile rubber mixture (A). In a 2-liter internal mixer, add 895.0 grams (89.5%) of polyester (PET), fill with dry nitrogen protection, banbury at 260°C for 10 minutes, and add rare earth alkoxide modified TiO 2 , SiO 2 - 105.0 grams of nitrile rubber mixture (A), after continuing banburying for 10 minutes, pressurized into the extruder to extrude, dry air cooling and pelletizing, to obtain 0.5% rare earth alkoxylate, 5.0% nitrile rubber, 5.0% TiO 2 , SiO 2 Co-toughened polyester masterbatc...

Embodiment 2

[0019] Nano Al 2 o 3Add 100.0 grams (10.0%) into 1000.0 grams of butyl acetate dissolved with 5.0 grams (0.5%) of a stearoyloxydiisopropoxylanthanum compound and 10.0 grams (1.0%) of styrene-butadiene rubber, and ultrasonically treat for 30 minutes , add 40.0 grams (4.0%) of styrene-butadiene rubber, 5.0 grams (0.5%) of a stearoyloxydiisopropoxylanthanum compound, stir to make it dissolve completely and mix evenly, and evaporate to butyl acetate under reduced pressure , Obtain 160.0 grams of rare earth alkoxide-modified nano-alumina-styrene-butadiene rubber mixture (A). In a 2-liter internal mixer, add 840.0 grams (84.0%) of polyester (PET), fill with dry nitrogen protection, heat up to 260 ° C for 10 minutes, and add rare earth alkoxide-modified nano-alumina-butylbenzene 160.0 grams of rubber mixture (A), after continuing banburying for 10 minutes, pressurized into the extruder to extrude, dry air cooling and pelletizing to obtain 1.0% rare earth alkoxide, 5.0% styrene-buta...

Embodiment 3

[0021] 75.0 grams (7.5%) of nano-CuO and 75.0 grams (7.5%) of nano-ZnO are added into a container that is dissolved with 5.0 grams (0.5%) of an acetoxy-diisobutoxy neodymium compound and 10.0 grams (1.0%) of nitrile rubber. In 1000.0 grams of butyl acetate, ultrasonic treatment for 20 minutes, add 140.0 grams (14.0%) of nitrile rubber, 25.0 grams (2.5%) of acetoxydiisobutoxy neodymium compound, stir to make it completely dissolve and mix evenly , distilled out butyl acetate under reduced pressure to obtain 330.0 grams of rare earth alkoxide-modified nano oxide-nitrile rubber mixture (A). In a 2-liter internal mixer, add 670.0 grams (67.0%) of polyester (PET), under the protection of dry nitrogen, heat up to 260 ° C for 10 minutes, and add rare earth alkoxide-modified nano oxide-butylene Nitrile rubber mixture (A) 330.0 grams, continue banburying after 10 minutes, pressurize and enter extruder to extrude, dry air cooling pelletizing, obtain 3.0% rare earth alkoxylate, 15.0% nit...

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PUM

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Abstract

The invention relates to a rare-earth doping modified polyester material of its process for preparing. In the invention, adding rare-earth alkoxide compound as a doping material and elastomeric polymer, polyester as the carrier resin to form the rare-earth alkoxide compound masterbatch, doping the said masterbatch into polyester melt in the polyester slice melting process, using the coordination structure characteristic so-called 'thermal regime cross-linking' generated by rare-earth metallic ion energy and the coordination groups such as benzene ring, carbon-to-carbon double bond, ketonic oxygen and nitrogen nitril of the polymer macromolecular to make the modified polyester has the toughness in wider temperature range and increase the stiffness, solvent resistance, thermal stability, weatherability of the material, or put the other functional characteristics such as resistance to ultraviolet radiation, infrared anti-reflection, induced crystallization, antibiosis or fluorescence simultaneously. What the most important is the said rare-earth modified doping resin has the toughening effect in the temperature of between room temperature to minus 30 Deg. C.

Description

technical field [0001] The rare earth doped modified polyester material and its preparation method of the present invention relate to new materials and its preparation method in the field of material science and technology. Background technique [0002] Polyester is a large variety of synthetic resins represented by polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polytrimethylene terephthalate (PTT), 2002 The annual world output has reached 40.917 million tons, while China's 2005 is expected to be 16.97 million tons, mainly used in polyester fiber, packaging materials and other fields. Polyethylene terephthalate (PET) is the polyester with the largest output, the lowest cost, and the largest amount of consumption. It has excellent mechanical properties, electrical insulation, chemical resistance, creep resistance, fatigue resistance and wear resistance. , but the crystallization rate is low and the impact resistance is poor. As a synthetic fiber app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/22C08L67/00
Inventor 章文贡林美娟王文
Owner FUJIAN NORMAL UNIV
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