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Polybutylece terephthalate (PBT) coated functional powder and preparation method thereof

A functional powder, powder technology, applied in fibrous filler, dyed low molecular organic compound treatment, dyed high molecular organic compound treatment and other directions, can solve the problems of complex treatment technology, narrow applicability, etc. Universal, easy-to-use effects

Active Publication Date: 2014-01-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In CN 101768258A, a chemical method is provided to connect CBT catalyst to POSS nanomaterials and add them to CBT for the preparation of PBT / POSS novel nanocomposites. This method makes POSS nanomaterials the active center of the reaction , to further improve the dispersion of functional powders in organic matrices. However, the use of chemical methods to attach catalytic groups to nanomaterials requires certain requirements for materials, and the processing technology is also relatively complicated. The applicability of this method is relatively narrow. , with certain limitations

Method used

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  • Polybutylece terephthalate (PBT) coated functional powder and preparation method thereof
  • Polybutylece terephthalate (PBT) coated functional powder and preparation method thereof
  • Polybutylece terephthalate (PBT) coated functional powder and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] (1) Carry a layer of CBT catalyst on the surface of nano-titanium dioxide: dissolve the catalyst ethyl titanate in ethanol to form a solution with a mass concentration of 25%, then add nano-titanium dioxide to the above solution, and carry out Stir, the ethyl titanate will be fully coated on the surface of the nano-titanium dioxide, the particle size of the nano-titanium dioxide is 20nm, and the mass ratio of the nano-titanium dioxide to the ethyl titanate in the solution is 15:1; , to obtain the lower precipitate, and further remove the ethanol solvent at 90°C to obtain the loaded nano-titanium dioxide loaded with ethyl titanate;

[0048] (2) Preparation of mixed powder: mix CBT powder with the above-mentioned nano-titanium dioxide loaded with ethyl titanate, the mass ratio of the CBT to the nano-titanium dioxide is 2:1; dry the mixed powder ;

[0049] (3) In-situ polymerization: After in-situ polymerization and spray powdering of the dried mixed powder, PBT-coated na...

Embodiment 2

[0051] (1) Carry a layer of CBT catalyst on the surface of tourmaline powder: dissolve the catalyst ethyl titanate in ethanol to form a solution with a mass concentration of 25%, and then add tourmaline powder to the above solution and stirring, the ethyl titanate will be fully coated on the surface of the tourmaline powder, the particle size of the tourmaline powder is 20nm, the mass ratio of the tourmaline powder to the ethyl titanate in the solution The ratio is 15:1; standing for stratification, obtaining the lower layer of precipitation, further removing the ethanol solvent at 90°C, and obtaining the loaded tourmaline powder loaded with ethyl titanate;

[0052] (2) Preparation of mixed powder: mix CBT powder with the above-mentioned tourmaline powder loaded with ethyl titanate, the mass ratio of the CBT to the tourmaline powder is 2:1; The powder is dried;

[0053] The specific steps of mixing as mentioned above are:

[0054] a) Put CBT into a high-speed pulverizer to m...

Embodiment 3

[0062] (1) Carry a layer of CBT catalyst on the surface of the phosphor: dissolve the catalyst isopropyl titanate in ethanol to form a solution with a mass concentration of 35%, and then add the phosphor to the above solution , and stirring, isopropyl titanate will be fully coated on the surface of the phosphor, the particle size of the phosphor is 80nm, and the mass ratio of the phosphor to isopropyl titanate in the solution is 25 : 1; standing for stratification, obtaining the lower layer of precipitation, further removing the ethanol solvent at 100°C, and obtaining the loaded phosphor body loaded with isopropyl titanate;

[0063] (2) Preparation of mixed powder: mix CBT powder with the above-mentioned phosphor loaded with isopropyl titanate, the mass ratio of the CBT to the phosphor is 4:1; the mixed The powder is dried;

[0064] The specific steps of mixing as mentioned above are:

[0065] a) Put CBT into a high-speed pulverizer to make CBT powder. The pulverization oper...

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Abstract

The invention relates to polybutylece terephthalate (PBT) coated functional powder and a preparation method thereof. The PBT coated functional powder has a core-shell structure, an inner core is the functional powder, and a shell is PBT resin. The functional powder is one or more of carbon nano tube, nano titanium dioxide, tourmaline powder, nano silver series antibacterial agent, nano silicon oxide and fluorescent powder; and the particle diameter of the functional powder is 20 to 80 nm. A layer of titanium catalyst is carried on the surface of the functional powder; and a coating method comprises the following steps of: polymerizing cyclic butylene terephthalate (CBT) on the surface of the functional powder to generate the PBT resin, and atomizing, wherein the mass ratio of the PBT resin to the functional powder is (2-4):1. The PBT coated functional powder which is obtained by a technology is high in compatibility with polyethylene terephthalate (PET) thermoplastic resin, polytrimethylene terephthalate (PTT) thermoplastic resin, poly A (PA) 6 thermoplastic resin and other thermoplastic resin, the dispersibility of the functional powder in organic resin is greatly improved, and the PBT coated functional powder has good application prospect in the aspect of development of functional fibers.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a PBT-coated functional powder and a preparation method thereof. Background technique [0002] Today, with the continuous development of material science and technology, the development work based on functional polymer materials emerges in an endless stream. Among them, the main way to develop functional polymer materials is the physical blending method, that is, the polymer is used as the matrix, the functional powder material is added to the matrix, and the polymer is functionalized by blending processing technology. At present, there are many kinds of functional polymer materials prepared by physical blending method, such as conductive, antistatic, anti-ultraviolet, antibacterial, deodorant, negative oxygen ion, far-infrared functional powder and so on. However, most of the functional powders added in the preparation process of functional polymer materials are inorganic ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K7/00C08K3/04C08K3/22C08K3/38C08K3/00C08K3/36C09C3/10C09C3/08C09C1/00C09C1/44C09C1/36C09C1/40C09C1/28C08G63/183C08L67/00C08L67/02C08L77/00C08L77/02
Inventor 王彪李莉王华平
Owner DONGHUA UNIV