General knowledge of coating: polyacrylate resin (3)

Key tips: Section 3 high solid acrylic paint The commonly used amino baking acrylic paint has a solid content of 40-50%, while the high solid acrylic acid has a solid content of 54-56% (volume) or 70-72% (mass) A large amount of solvent can be saved, and the number of layers can be reduced due to the increase of film thickness, so as to achieve better energy saving and labor-saving effect 1、 Characteristics and technical key of high solid acrylate paint Based on its high solid content, high solid acrylic paint can only be produced by oligomer with low molecular weight, and its film performance depends on the molecular growth after crosslinking Acrylic high solid paint mostly relies on side chain hydroxyl Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coating home news: Section 3: the solid content of high solid acrylic paint is 40-50%, while the solid content of high solid acrylic paint is 54-56% (volume) or 70-72% (mass) A large number of solvents can be saved, and the number of layers can be reduced due to the increase of the film thickness, so as to achieve better energy-saving and work saving effect 1、 The characteristics and key technology of high solid acrylate paint based on its high solid content, it can only be produced by oligomer with low molecular weight, and its film performance depends on the molecular growth after crosslinking Acrylate high solid paint is mostly made of thermosetting resin with hydroxyl side chain and high solid content of methylether melamine formaldehyde resin The number average molecular weight of resin must be as low as 2000 ~ 6000 to make the solid content reach about 70% and the viscosity is not too high 1 Molecular weight distribution and hydroxyl distribution of the resin at least 2 hydroxyl groups on each resin molecule can be crosslinked with the amino resin to form a large molecule If there is only one hydroxyl group on the resin, the resin of this molecule can only break the chain end group of macromolecule in the process of film formation If the resin does not contain hydroxyl, the molecule can only be a low molecular mixture mixed in the film-forming substance The latter two phenomena must be avoided Because the molecular weight is very small, it is necessary to have a very narrow molecular weight distribution and enough hydroxyl ester monomers to participate in the polymerization, so as to ensure that there are more than two hydroxyl groups on each resin molecule Mw/Mn nnecttype="none" o:extrusio nok="t" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; word-wrap: break-word; line-height: 25px; "> nnecttype="rect" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; Padding top: 0px; padding right: 0px; padding bottom: 0px; padding left: 0px; word wrap: break word; line height: 25px; "> Fig, Paint coating, coating process, decoration knowledge and decoration effect drawing of fire retardant coating,