Titanium dioxide masterbatch and preparation method thereof

A technology of titanium dioxide and color masterbatch, which is applied in the field of plastic coloring, can solve problems such as poor compatibility, and achieve the effects of good compatibility, good dispersibility, and strong coloring ability

Active Publication Date: 2017-06-30
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor compatibility between the existing white masterbatc

Method used

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  • Titanium dioxide masterbatch and preparation method thereof
  • Titanium dioxide masterbatch and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0024] The method for preparing titanium dioxide masterbatch provided by the present invention includes the following steps:

[0025] (1) Preparation of raw materials: 20-60% carrier resin, 30-70% titanium dioxide, 1-6% dispersant, and 1-4% antioxidant;

[0026] (2) Mixing: Mix the dispersant and antioxidant evenly in proportion using a high-speed mixer to obtain a mixed powder;

[0027] (3) Extrusion and granulation: the carrier resin, titanium dioxide and the mixed powder obtained in step (2) are mixed according to the proportion through a weightlessness scale using an extruder, and then extruded and granulated. The screw speed of the extruder is 280-300 revolutions per minute, and the temperature of the extruder is set to 200℃-295℃.

[0028] The antioxidant used in the embodiment is a mixture of antioxidant 1010 and antioxidant 168, wherein the weight ratio of antioxidant 1010 to antioxidant 168 is 1:1.

Example Embodiment

[0030] Example 1

[0031] The titanium white pink masterbatch provided by the present invention and the preparation method thereof. The titanium white pink masterbatch comprises the following ingredients: 40% PET carrier resin, 50% rutile titanium dioxide, polyethylene wax 6%, and antioxidant 4% . The preparation method of titanium white pink masterbatch is automatic feeding by weight loss scale according to the proportion, the total feeding amount is 500kg / h, the screw speed of the extruder is 280 revolutions / min, and the temperature of the extruder is set at 220℃-275℃ The extruded strips are water-cooled, dried, pelletized, and packaged to obtain titanium white pink masterbatch.

Example Embodiment

[0032] Example 2

[0033] The titanium white pink masterbatch provided by the present invention and the preparation method thereof. The titanium white masterbatch comprises the following components: 30% PET carrier resin, 60% rutile titanium dioxide, 6% polyethylene wax, and 4% antioxidant. The preparation method of the titanium white pink masterbatch is to automatically cut the material according to the proportion through a weightlessness scale. The total material is 500kg / h, the screw speed of the extruder is 290 rpm, and the temperature of the extruder is set at 220℃-275℃. The discharged strips are water-cooled, dried, pelletized, and packaged to obtain titanium white pink masterbatch.

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Abstract

The invention relates to the field of plastic coloring and in particular to titanium dioxide masterbatch and a preparation method thereof. In order to solve the problem that existing white masterbatch is relatively poor in compatibility with PET, the invention provides the titanium dioxide masterbatch and the preparation method thereof. The titanium dioxide masterbatch comprises the following raw materials in percentages by weight: 20-60% of carrier resin, 30-70% of titanium dioxide, 1-6% of a dispersant and 1-4% of an antioxidant. The titanium dioxide masterbatch provided by the invention has the advantages of being strong in coloring ability and good in dispersibility and good in compatibility with PET. The preparation method of the titanium dioxide masterbatch provided by the invention is simple in process and suitable for scaled production.

Description

technical field [0001] The invention relates to the field of plastic coloring, in particular to a titanium dioxide pink masterbatch and a preparation method thereof. Background technique [0002] Color masterbatch usually consists of three elements: carrier resin, pigment and additives. Among them, the pigment is the core, and the performance of the pigment plays a decisive role in the performance of the masterbatch. Titanium dioxide has strong hiding power and high whiteness, and is the first choice for white masterbatch pigments. PET (polyethylene terephthalate) has excellent heat resistance, corrosion resistance, toughness, electrical insulation, etc., and is cheap, so it is widely used in plastic fields such as fibers, films, and polyester bottles. A large part of PET needs to be used for coloring, but PET coloring is relatively difficult, and the compatibility of the white masterbatch used now with PET is poor. Contents of the invention [0003] In order to solve t...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L23/12C08L25/06C08L23/06C08K3/22C08K5/134C08K5/526C08J3/22
CPCC08J3/226C08J2367/02C08J2423/06C08J2423/12C08J2425/06C08J2467/02C08K2201/005C08L23/06C08L23/12C08L25/06C08L67/02C08L2205/02C08L2205/025C08L2205/03C08K2003/2241C08K5/1345C08K5/526
Inventor 金亚东裴旺
Owner NINGBO CHANGYANG TECH
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