A kind of high-content high-pigment carbon black-thermoplastic polyester masterbatch and preparation method thereof

A high-pigment carbon black and thermoplastic polyester technology, applied in the field of polymer materials, can solve the problems of fiber physical performance decline, poor light resistance and heat resistance, difficult dispersion, etc., to enhance blackness and gloss, and improve dispersion effect, the effect of reducing alkalinity

Active Publication Date: 2021-08-24
广东九彩新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester fibers have poor dyeing performance, low color fastness, poor light resistance and heat resistance, and are prone to defects such as color difference, color spots, and color flowers.
For black masterbatches, the primary particle size of carbon black is small, and it is difficult to disperse well. It is difficult to obtain the expected gloss and blackness when adding conventional dosages. When the proportion of color masterbatches is increased, the melt fluidity will change. Poor, frequent injection head and broken filaments, physical properties of fibers decline

Method used

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  • A kind of high-content high-pigment carbon black-thermoplastic polyester masterbatch and preparation method thereof
  • A kind of high-content high-pigment carbon black-thermoplastic polyester masterbatch and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0050] 1.2 dispersant preparation

[0051] 1.2.1 Preparation of Dispersant I, including the following steps:

[0052] (1) According to the weight of the reaction, 20 parts of stearic acid, 40 parts of caprolactone, 8 parts of blenedhenic acid, 20 parts of succinic acid, 8 dihydroxymethyl proppropionic acid, 10 new pentanediol 10, two 8 parts of alcohol, 3 parts of trihydroxyethyl isocyanrate, 15 parts of diphenyl methane diisocyanate, 8 parts of N, N-dimethylamine, 0.04 of tetrabutyl titanate, and 80 dimetarades;

[0053] (2) Adding stearic acid, succinic acid, new pentanediol, ethylene glycol, trihydroxyethyl isotide, 1 / 2 weight of xylene and tetrabutyl tetrabutyl tetrabut, into the reactor, Nitrogen is warmed to 180 ° C, the insulation reaction is 10 h, and the moisture is continuously excluded through the water supply during the reaction; then adding hexylolide, dihydroxymethyl propionic acid, and heats up nitrogen temperature to 220 ° C, heat insulation reaction for 6 h, and t...

Embodiment 1

[0064] In this example, a high content of high-panel carbon black-thermoplastic polyester pellets, including the following weight of the following weight: 60 parts of high-color carbon carbon, 80 parts of thermoplastic polyester, 3 carbon nanofibers, 10 dispersants, 5 parts of the silane coupling agent, 0.9 parts of an antioxidant.

[0065] The high pigment carbon black is pre-passing ozone oxidative modification, the particle size is 10-25 nm, the specific surface area is 400-700m 2 / g, the oil absorption value is <1.5 mL / g, the volatile content reaches 4.5-6.5 wt%.

[0066] The acid value of the thermoplastic polyester is 40 mgKOH / g, the melt index (230 ° C / 2.16 kg) is 30 g / 10 min; characteristic viscosity is 0.8 dl / g.

[0067] The carbon nanofibers have a diameter of from 10 to 20 nm, and the length is 10-50 μm;

[0068] The dispersant is a dispersant I, and the silane coupling agent is gamma-aminopropyltriethoxysilane (KH550), and an antioxidant is a hindered phenol...

Embodiment 2

[0079] In this example, a high content of high-pose carbon black-thermoplastic polyester pellets, including the following weight of the following weight: 50 parts of high-patronic carbon, 2 parts of thermoplastic polyester 40, carbon nanofibers, 12 parts of dispersant, silane 8 parts of the coupling agent, 1 antioxidant;

[0080] The high-pig carbon black pre-primary isoxitic oxidation modification, the particle size is 10-25 nm, the specific surface area is 400-700m 2 / g, the oil absorption value is <1.5 ml / g, the volatile content is 4.5-6.5% by weight;

[0081] The acid value of the thermoplastic polyester was 50 mgKOH / g, the melt index (230 ° C / 2.16 kg) was 25 g / 10 min; characteristic viscosity was 0.6 dl / g.

[0082]The carbon nanofibers have a diameter of from 10 to 20 nm, and the length is 10-50 μm;

[0083] The dispersing agent is a dispersant II, and the silane coupling agent is gamma-glycidyl ether oxyltrimethoxysilane (KH560), an antioxidant is a hindered amine...

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Abstract

The present invention provides a high-content high-pigment carbon black-thermoplastic polyester masterbatch and a preparation method thereof. The high-pigment carbon black with a small primary particle size is selected, and the surface of the carbon black is improved by modifying the high-pigment carbon black with ozone or nitric acid oxidation. Hydrophilicity, modified with silane coupling agent containing epoxy or amino groups in the molecule, and the use of specific structure dispersants and carbon nanofibers to improve the dispersibility of high-pigment carbon black in thermoplastic polyester carrier resin, Combining internal mixer and twin-screw extrusion granulation process to achieve high blackness and high gloss high-pigment carbon black-thermoplastic polyester masterbatch, the polyester fiber prepared by the high-pigment carbon black-thermoplastic polyester masterbatch has Good mechanical properties.

Description

Technical field [0001] The present invention belongs to the technical field of polymer materials, particularly relates to a high content of the high color carbon blacks - base particles and preparation method of the thermoplastic polyester Background technique [0002] Masterbatch Masterbatch also known, plastic masterbatch, is composed of a high proportion of the pigment with the thermoplastic resin or additive, well-dispersed plastic colorants; during plastics processing, the pigment is added directly compared to He said masterbatch using manner can improve the dispersibility of pigment and color strength of the pigment particles after the heating and melting can be dispersed better in plastic products, improve the stability of the color of the article; different colors of paint may be prepared different masterbatch, wherein the black masterbatch is prepared from carbon black, formed by carriers and adjuvants. [0003] It is well known, carbon black is a nano-material, typicall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/00C08L75/06C08K9/06C08K9/02C08K3/04C08K7/06C08K5/134C08J3/22
CPCC08J3/226C08J2467/00C08J2475/06C08K3/04C08K5/1345C08K7/06C08K9/02C08K9/06C08K2201/011
Inventor 林文丹曹畅吴列鵬
Owner 广东九彩新材料有限公司
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