The effect of SiO2 nanoparticles in polyurethane paint formulation on metal surfaces

Le Huy Hai Le Huy Hai

doi:10.30574/ijsra.2021.3.1.0101

Abstract

Polyurethane (PU) paint is being widely used in industry and life. Currently, nanotechnology can create a variety of materials as small as nanometers with many applications, it has brought many outstanding properties to PU paint. The aim of this study is to investigate the effect of SiO2 nanoparticles in PU paint formulation on metal surfaces. We created a sample of two-component PU paint, part A is Desmophen A-160, Bentone 34, BYK 066, Disper 710S, Foamex N, Airex 900, TiO2, SiO2 nanoparticles, BaSO4, Cloparafin, Xylen, Thinner 132, Desmodur N75, and part B is a curing agent Desmodur N75. Methods of analyzing the properties of the PU paint film are based on Vietnam standards. The study results showed that SiO2 nanoparticles have increased the properties of the PU paint film, improving the Impact and Glossy of the PU paint film. SiO2 nanoparticles increase from 1% to 6% by weight, the Impact increased by about 21.62% (74 to 90 kg.cm), Glossy 600 increased by about 13.75% (80 to 91). SiO2 nanoparticles are a good coating substance in PU paint, it improves the properties of the paint film, it increases the Impact and Glossy for the paint film. The higher the rate of SiO2 nanoparticles, the better the properties of the PU paint film. Because the cost of nanomaterials is higher than that of normal coating materials, the nanomaterial should only be added with a ratio of about 2-4% by weight.

Highlights

Polymers have become indispensable materials in recent years in the age of technology and science, it has a very important place in our daily lives
Without adding SiO2 nanoparticles, Impact of C1 was 74 kg.cm, adding 1% of SiO2 nanoparticles, Impact of C2 increased by 2.70%, adding 2% of SiO2 nanoparticles, Impact of C3 increased by 8.11%, adding 3% of SiO2 nanoparticles, Impact of C4 increased by 13.51%, adding 4% of SiO2 nanoparticles, Impact of C5 increased by 17.56%, adding 5% of SiO2 nanoparticles
Without adding SiO2 nanoparticles, Glossy 600 of C1 was 80, adding 1% of SiO2 nanoparticles, Glossy 600 of C2 increased by 1.25%, adding 2% of SiO2 nanoparticles, Glossy 600 of C3 increased by 5.00%, adding 3% of SiO2 nanoparticles, Glossy 600 of C4 increased by 8.75%, adding 4% of TiO2 nanoparticles, Glossy 600 of C5 increased by 11.25%, adding 5% of SiO2 nanoparticles, Glossy 600 of C6 increased by 12.50%, adding 6% of SiO2 nanoparticles, Glossy 600 of C7 increased by 13.75%

Summary

Introduction

Polymers have become indispensable materials in recent years in the age of technology and science, it has a very important place in our daily lives. Polyurethanes (PU) are among the most useful polymers and are widely used both in industry and in consumer products [1, 2, 3]. Because of their special chemical structure, these materials have different properties such as varied hardness, excellent wear resistance, and good resistance to solvents, flexibility, and high strength. Nanotechnology has researched and applied particles smaller than 100 nanometers (nm) in at least one dimension, artificially produced nano-sized particles with new properties that are important for development of products in the field of coatings [7, 8, 9]

Objectives

Methods

Results