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Polyester/unidimensional nano silicate composite materials and method for preparing same

A nano-silicate and composite material technology is applied in the field of polyester/one-dimensional nano-silicate composite materials and their preparation, and can solve the problems of low crystallization rate of PET composite materials, unsatisfactory results, and large equipment wear. Achieve the effect of strong interaction, improved barrier properties, and improved molding processability

Inactive Publication Date: 2005-09-07
JIANGSU NDZ TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, inorganic fillers are used to fill PET, such as patent JP06049344, which reports the addition of glass fiber filled PET and talcum powder, and patent RU2052473, which reports the addition of kaolin, wollastonite, etc. to fill PET, which can improve the size of PET and increase the rigidity. However, due to PET melt Blending and compounding have high energy consumption, are easy to degrade, wear heavily on equipment, and the resulting PET composite material has a low crystallization rate, and the results are still unsatisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Direct esterification method Add 4.15g of one-dimensional nano-silicate to 88g of water. After being uniformly dispersed, stir at high speed for 0.5 hours to obtain suspension A; add 0.058g of phosphoric acid and 0.022g of ethanolamine into 12ml of water to dissolve, and obtain a protonating agent B; under stirring, add liquid B dropwise to A, and stir at below 90°C for 20 minutes. Dissolve 560g of monomeric PTA and 280g of monomeric EG (wherein the molar ratio of PTA:EG=1:1.2) and 0.25g of catalyst antimony acetate are dissolved in ethylene glycol to obtain a suspension C, and add C to the above-mentioned liquids A and B In the process, after pumping water until the water content is less than 1.0%, the temperature is raised to carry out the esterification reaction. After esterification at 220-250°C for 7-10 hours under normal pressure, the pressure during the process is 0.3-0.5 MPa, and a clear solution is obtained. Add additives 0.01 g of hexamethylenediamine, then va...

Embodiment 2

[0048] Direct esterification method Add 8.3g of one-dimensional nano-silicate to 162g of water. After being uniformly dispersed, stir at a high speed for 0.5 hours to obtain suspension A; add 0.73g of phosphoric acid and 0.46g of ethanolamine to 38ml of water to dissolve to obtain a protonating agent B; under stirring, add liquid B dropwise to A, and stir at below 90°C for 20 minutes. Dissolve 560g of monomeric PTA and 280g of monomeric EG (wherein the molar ratio of PTA:EG=1:1.2) and 0.25g of catalyst antimony acetate are dissolved in ethylene glycol to obtain a suspension C, and add C to the above-mentioned liquids A and B In the process, after pumping water until the water content is less than 1.0%, the temperature is raised to carry out the esterification reaction. After esterification at 220-250°C for 7-10 hours under normal pressure, the pressure during the process is 0.3-0.5 MPa, and a clear solution is obtained. Add additives 0.001 g of hexamethylenediamine, and then v...

Embodiment 3

[0050] Direct esterification method Add 24.9g of one-dimensional nano-silicate to 460g of water. After being uniformly dispersed, stir at a high speed for 0.5 hours to obtain suspension A; add 2.68g of phosphoric acid and 1.70g of ethanolamine to 60ml of water to dissolve to obtain a protonating agent B; under stirring, add liquid B dropwise to A, and stir at below 90°C for 20 minutes. Dissolve 560g of monomeric PTA and 28080g of monomeric EG (wherein the molar ratio of PTA:EG=1:1.2) and 0.25g of catalyst antimony acetate are dissolved in ethylene glycol to obtain a suspension C, and add C to the above liquids A and B In the process, after pumping water until the water content is less than 1.0%, the temperature is raised to carry out the esterification reaction. After esterification at 220-250°C under normal pressure for 7-10 hours, the pressure during the process is 0.3-0.5 MPa, and a clear solution is obtained. Add additives 0.01 g of hexamethylenediamine, then vacuum until ...

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Abstract

The invention relates to a polyester / one-dimensional nanometer silicate composite material and the preparing method, comprising putting the one-dimensional nanometer silicate after decentralized processing and polyester monomer into polymerization reactor for condensation copolymerization, then getting the high property product formed through the one-dimensional nanometer silicate chemical bond combination with polyester monomer. The product is characterized by the considerable improvement in, pull resistance and contour machining property and by the complete change of the low efficiency of previous PET as engineering material. The invention discloses adapted forpolyester manufacturing technique such as direct esterification or ester exchange and can get the product with good combination property such as high crystallization velocity and high heat resistance in the precondition of not increasing the production cost.

Description

technical field [0001] The invention relates to a polyethylene terephthalate (PET) composite material used for engineering plastics, film and fiber materials, in particular to a polyester / one-dimensional nano-silicate composite material and a preparation method thereof. Background technique [0002] PET is a polymer with excellent comprehensive properties, widely used in fibers, films, and engineering plastics. Due to its low heat distortion temperature and low crystallization rate, it greatly hinders the use of PET in fibers, blown films, especially engineering plastics. Applications. Over the past few years, various experts have done a lot of research and development work in the above-mentioned aspects. CN 1098895C by Qi Zongneng of the Institute of Chemistry, Chinese Academy of Sciences, a polyester / layered silicate nanocomposite material and its preparation method, and two patents of CN1465621A by Li Bizhong, etc. of Beijing Chonggao Nano Technology Co., Ltd. Salt nano...

Claims

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Application Information

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IPC IPC(8): C08K3/34C08L67/02
Inventor 邵佳敏刘建平于庆国
Owner JIANGSU NDZ TECH
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