Method for evaluating organic surface coating effect of special titanium dioxide for plastics

A technology of surface coating and evaluation method, applied in the direction of analysis materials, instruments, measuring devices, etc., can solve the problem of inability to judge the effect of organic surface coating of titanium dioxide

Inactive Publication Date: 2021-03-23
CHONGQING TITANIUM IND OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only be used to analyze the stability of the addition of titanium dioxide organic treatment agent, and the effect of titanium dioxide organic surface coating cannot be judged by this method

Method used

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  • Method for evaluating organic surface coating effect of special titanium dioxide for plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 10g (accurate to 0.01g) of plastic-specific titanium dioxide A into a weighing bottle, bake in an oven at 105°C for 2 hours, cover and place in a desiccator to cool to room temperature. Prepare a 500mL dry Erlenmeyer flask, and accurately measure 200mL of desalted water into the Erlenmeyer flask. Accurately weigh 2g of the above-mentioned titanium dioxide (accurate to 0.0001g), quantitatively transfer it to a 500mL conical flask, stir, observe and record the hydrophobicity of the titanium dioxide, and install a condensation reflux device at the mouth of the conical flask. Move the Erlenmeyer flask to the electric heating plate, turn on the power switch of the electric heating plate, set the heating temperature to 150° C., and heat for 15 minutes. Turn off the electric heating plate and cool to room temperature. The solution in the Erlenmeyer flask was filtered with quantitative filter paper, and the filter paper and the residue on the filter paper were transferre...

Embodiment 2

[0032] Weigh 10g (accurate to 0.01g) of plastic-specific titanium dioxide B into a weighing bottle, bake in an oven at 105°C for 3 hours, cover and place in a desiccator to cool to room temperature. Prepare a 500mL dry Erlenmeyer flask, and accurately measure 200mL of desalted water into the Erlenmeyer flask. Accurately weigh 2g of the above-mentioned titanium dioxide (accurate to 0.0001g), quantitatively transfer it to a 500mL conical flask, stir, observe and record the hydrophobicity of the titanium dioxide, and install a condensation reflux device at the mouth of the conical flask. Move the Erlenmeyer flask to the electric heating plate, turn on the power switch of the electric heating plate, set the heating temperature to 150° C., and heat for 15 minutes. Turn off the electric heating plate and cool to room temperature. The solution in the Erlenmeyer flask was filtered with quantitative filter paper, and the filter paper and the residue on the filter paper were transferre...

Embodiment 3

[0034] Weigh 10g (accurate to 0.01g) of plastic-specific titanium dioxide C into a weighing bottle, bake in an oven at 105°C for 4 hours, cover and place in a desiccator to cool to room temperature. Prepare a 500mL dry Erlenmeyer flask, and accurately measure 200mL of desalted water into the Erlenmeyer flask. Accurately weigh 2g of the above-mentioned titanium dioxide (accurate to 0.0001g), quantitatively transfer it to a 500mL conical flask, stir, observe and record the hydrophobicity of the titanium dioxide, and install a condensation reflux device at the mouth of the conical flask. Move the Erlenmeyer flask to the electric heating plate, turn on the power switch of the electric heating plate, set the heating temperature to 150° C., and heat for 15 minutes. Turn off the electric heating plate and cool to room temperature. The solution in the Erlenmeyer flask was filtered with quantitative filter paper, and the filter paper and the residue on the filter paper were transferre...

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Abstract

The invention belongs to the technical field of chemical engineering, and relates to a method for evaluating the organic surface coating effect of special titanium dioxide for plastics. The inventionaims to provide a method for evaluating the organic surface coating effect of special titanium dioxide for plastics. The method comprises the following steps of: A, drying titanium dioxide, cooling the titanium dioxide to room temperature, adding the titanium dioxide into desalted water, performing stirring, and observing and recording the hydrophobic condition of the titanium dioxide; b, heatingthe desalted water containing the titanium dioxide in the step A, carrying out condensation reflux in the heating process, cooling after heating is finished, and performing filtering to obtain filtrate and residues; and C, calcining the residues, performing cooling and weighing sequentially, and measuring the turbidity of the filtrate. The method provided by the invention can quantitatively and accurately evaluate the organic surface coating effect of the titanium dioxide special for different plastics.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for evaluating the organic surface coating effect of plastic-specific titanium dioxide. Background technique [0002] Titanium dioxide (scientific name titanium dioxide) is currently the best white pigment in the world. It not only has very stable physical and chemical properties, but also has excellent optical and electrical properties such as high refractive index, best hiding power, best whiteness and brightness. Widely used in coatings, plastics, papermaking, ink, electronics and other fields, it is called "industrial monosodium glutamate". [0003] The plastic industry is the second largest user of titanium dioxide, and it has developed rapidly in recent years. About 25% of titanium dioxide output is used in the plastic industry. Most plastic products are based on synthetic resins and contain fillers, colorants, plasticizers, etc. Colorants p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N5/04
CPCG01N33/00G01N5/04
Inventor 肖勇丽景建林赵北东和柳李开娟徐庭敏周俊
Owner CHONGQING TITANIUM IND OF PANGANG GROUP
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