Under the background of reducing wear, prolonging the service life of equipment, and researching and manufacturing wear-resistant materials suitable for different fields, Meng Qingli and other scholars conducted experimental research. Their paper "Spray-type polyurethane elastomer wear-resistant and Analysis of Influencing Factors" introduces the preparation of polyurethane elastomer wear-resistant coatings with two different components, A and B, to study the influence of the types of polyether polyols and wear-resistant additives on the wear-resistant properties of elastomer coatings, and The relationship between Akron abrasion, DIN abrasion, Taber abrasion and NBS abrasion in laboratory dry state.
The conclusions show that:
(1) PTMG type spray polyurethane elastomer is obviously superior to ordinary polyoxypropylene ether polyol type spray polyurethane elastomer in terms of wear resistance, resilience and tensile strength.
( 2) The introduction of slip additive A improves the wear resistance of the sprayed elastomer coating.
(3) There is no necessary relationship between the wear data measured by different wear test machines under standard experimental conditions. For mass wear and volume wear, the lower the wear value, the better the wear resistance of the coating, while the wear index is the opposite.
