UV elastic feel paint resin FSP8640

Now many end-product coating not only has a dazzling appearance effect, strict physical requirements, but also has a lot of functional requirements, such as anti-fouling, anti-fingerprint, anti-fog and so on. For some often touch the product, such as smartwatches, mice, mobile phone cases, drones and other high-end household items, in order to avoid stiff, cold touch, but make people feel soft, smooth flexible touch, elastic hand paint also came into being.
the mainstream elastic hand paint on the chinese market is a two-part solvent-based product, also known as PU rubber paint, using thermo-cured way to
chinese
. Although this kind of rubber paint can get a better feel, but there are easy anti-stick, wear-resistant poor, odor residue, construction time and so on. In order to solve the wear resistance and stability of the two-part rubber paint, while also taking into account the excellent feel, Runo Chemical has specially developed UV elastic feel resin - FSP8640.
We did a detailed test of the resin, test formula using resin with a small amount of monosome, the appropriate amount of trigger, mainly to investigate the resin's feel, adhesion, curing speed, water-resistant cooking, wear resistance, as well as curing odor and other properties. Experiments show that FSP8640 has the following characteristics.
one
fast curing speed
FSP8640 is a three-role polyurethane acrylic, with good reaction activity. In the test, in 400mJ/cm
2
energy can be dried, double-key conversion rate is high, can effectively form a cross-linking network, long-term placement will not appear anti-stick phenomenon.
second
excellent feel
FSP8640 after special changes, with elastic chain segments, high elongation, good elastic elasticity, has an excellent silky elastic feel. In the formulation design, with hand aid or elastic powder can make the feel of the hand thicker, and with fluorosilica additives can increase smoothness, can be flexible according to the actual application needs of the match. At the same time, FSP8640 and most resins have good compatible, formula adjustment space is large.
third
wear resistance
pu rubber oil is usually less wear resistance, it is difficult to meet the test requirements of some high-end applications. The main structure of FSP8640 is polyurethane, the molecule has urethane bond, can form a variety of hydrogen bonds between polymer chains, at the same time as a three-function resin can form a good cross-linking network, so can take into account better toughness and wear resistance. In the test, the RCA wear resistance of FSP8640 can reach 250-300 times, good anti-scratch performance, can fully meet the requirements of elastic hand paint for wear resistance.
Four
water-resistant cooking
for high-end household items, there will be a lot of confidence resistance tests, such as high temperature and humidity, hot and cold cycle, water-resistant cooking and other tests. For many elastic hand paint, water-resistant cooking performance is not good, after boiling prone to whitening, anti-stick, adhesion decline and other problems. FSP8640 can be boiled by 85 degrees C for 1 hour of testing, paint film will not be white, adhesion has not decreased, while the water can still maintain excellent touch after boiling, with better water resistance.
adhesion
isfor UV elastic hand paint, adhesion is also particularly important. At present, the market hand paint easy to appear the problem is adhesion instability, such as in the narrow edge or substrate edge of the paint film scrape easy to fall, or after a long period of time after the adhesion drop. FSP8640 on conventional plastic substrates such as PC, ABS, PVC have excellent adhesion, while TPA or PU primer also has excellent attachment, wetting good, can effectively penetrate the formation of mutual penetration network. We carried out a long investigation of FSP8640, no false attachment of the situation, dense sex is good.