Low odor all-solid anti-fouling resin - LuCure8696.

Nowadays, many end-use coatings not only have a beautiful appearance, but also need to take into account excellent wear, scratch, fingerprint, stain resistance and other performance. The research and development of anti-fouling coatings has become a hot spot and trend in the field of coating, in consumer electronics, home, exterior, automotive interior and other applications have related to anti-fouling requirements. For anti-fouling requirements, fluorosilicon resins and additives are generally used in formulations, however, many fluorosilicon resins because of the needs of the synthesis process will contain some solvents, can not be used in ink, flooring and other solvent-free system applications .
Runo Chemical Technology Center last year developed a 100 percent solid-containing anti-fouling resin, FSP8658, which, although solvent-free, has some special odors that cannot be used in applications that require a high odor. Then for low odor, solvent-free anti-fouling requirements, we further upgrade and improve the product, recently successfully developed a low odor all-solid anti-fouling resin - LuCure8696, which is a three-function fluorosilicon modified acrylic.
Runo Chemical Application Laboratory carried out a detailed test of the resin, the formula takes a resin with a small number of monosomes, the appropriate amount of trigger, mainly to investigate the resin anti-graffiti, persistence, leveling, water-resistant cooking, wear resistance, toughness and so on.
anti-graffiti
the anti-fouling properties of the coating surface of the main contact angle and oil resistance pen test. In the test of oil-resistant pen, oil-resistant pen graffiti marks have obvious oil shrinkage, pen marks can be easily erased, and the coating surface has no trace residue. After we put the graffiti substrate in a 60C oven, after 30 minutes of baking, the oily pen marks have been completely dried, at this time with a dust-free cloth can still easily remove traces. In the water contact angle test, the water contact angle of LuCure8696 can reach 108 degrees. Through the oily pen and contact angle test experiments, it can be seen that LuCure8696 has excellent anti-graffiti performance.
Itaty toughness
market many fluorine modified or silicon modified resins are high-level resin, high cross-link density is more conducive to anti-graffiti, fingerprint resistance and other requirements, but also will make the brittle increase, do the main resin when bending easy to collapse paint or adhesion drop, can not meet the toughness requirements of higher applications. LuCure8696 is a three-function resin with a moderate crosslink density and HB hardness to meet good wear and scraping requirements, while its main chain is polyurethane, with excellent toughness. At the same time, LuCure8696 has a high reaction activity, the measured 300mJ/cm2 can be dried, can meet the construction requirements of different applications.
Resumability
persistence of anti-fouling effect is also an important material indicator, by adding silicon fluorine additives to improve the coating of anti-graffiti solutions, often less persistent, small molecule additives easy migration led to a significant reduction in anti-fouling effect. LuCure8696 chain contains fluorosilicon structure, because it is not compatible with the main chain and the proportion is low, so that the fluorosilicon structure naturally migrates to the coating surface to form nanosynthtic microstructures to achieve anti-fouling effect, such anti-fouling effect is more durable. LuCure8696 is also more compatible than some fluorine modified resins.
water resistance
high temperature, high humidity or boiling conditions, the coating surface is easy to be destroyed, fluorosilicon additives are easy to migrate, water contact angle decreased, resulting in a significant decline in stain resistance, poor durability. LuCure8696 has excellent hydrophobic, fluorosilicon chain segment can also participate in cross-linking, not easy to migrate, boiling water boiling for 1 hour, paint film no change, adhesion did not decrease, marker pen test, there is still a phenomenon of oil shrinkage, pen marks can be erased.
compatible with
whether it is printing or roller coating process, the appearance of the paint film performance has high requirements. LuCure8696 molecular weight is not high, low viscosity, has excellent wetting, can achieve mirror leveling effect. At the same time, the resin compatible is good, with his resin, will not be due to compatible problems and produce shrink holes, hemp points and other problems, while the paint film can maintain a high light transmission rate, will not appear white hair fog and other episcopic problems.
low odor
in some applications on the smell of raw materials have higher requirements, LuCure8696 uses a special synthesis process, strictly control the residue of small molecules, reduce the odor, the resin itself has no special odor, cured completely after the paint film is completely odorless, to meet the needs of different applications such as clean taste coatings, inks.
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