Nanometer titanium dioxide for improving properties of 3D printing supplies and preparation method of nanometer titanium dioxide

Abstract

The invention provides nanometer titanium dioxide for improving properties of 3D printing supplies and a preparation method of the nanometer titanium dioxide. The method disclosed by the invention comprises the following steps of (1) compounding a solution A: dropping titanium tetrabutoxid into anhydrous ethanol during stirring, then adding acetic acid glacial, and performing stirring for 0.5-1 hour; (2) compounding a solution B: separately dropping gadolinium chloride and praseodymium chloride into the anhydrous ethanol during stirring, then adding the acetic acid glacial, and performing stirring for 0.5-1 hour; (3) slowly pouring the solution B into the solution A so as to obtain gel; (4) ageing the obtained gel; (5) putting the aged gel into a drying oven for drying so as to obtain granules; and (6) putting the dried granules into a mortar for grinding, then placing the ground granules into a chamber type electric resistance furnace, performing carbonization for half an hour, continuing temperature rise to 600-800 DEG C, and performing calcination so as to obtain nanometer titanium dioxide powder for improving the properties of the 3D printing supplies. The photocatalysis degradation properties of titanium dioxide materials can improve the product properties of the 3D printing supplies, and reduce harmful gas produced in a printing process.

Description

Technical field: [0001] The invention relates to nano-titanium dioxide for improving the performance of 3D printing consumables and a preparation method thereof, belonging to the technical field of inorganic chemical materials. Background technique: [0002] At present, nearly 95% of FDM consumables use ABS and PLA as substrates, and their printing temperature is usually around 220°C, which belongs to medium temperature FDM consumables. New research from the Illinois Institute of Technology found that printers using ABS and PLA polymers as plastic raw materials have higher emissions of ultrafine particles (UFP), at rates similar to those of laser printers or burning cigarettes. Due to their small size, UFP can be deposited in the lungs and absorbed directly into the blood. Higher concentrations of UFP have been linked to the development of lung cancer, stroke, and asthma symptoms. The chemical composition of ABS and PLA emissions was not specified in the report, but ABS has...

AI Technical Summary

Problems solved by technology

However, pure nano-titanium dioxide photocatalyst powder still has many defects in practical applications.