If you lift the corner of a removable film, such as a protective coating applied to a mobile phone screen, it should pull away cleanly and easily. Try the same on a shipping label, and it should adhere stubbornly to the package. Both are adhesive applications, yet the needs are very different. The w... read more
In a 10 ml graduated test tube, use a leaky tube to add 2 ml of emulsion, then use a dropper to add 8 ml of deionized water, shake well and place on the test tube rack, and observe whether there is any after 24 h and 48 h. If stratification, water separation, and precipitation occur, the passage doe... read more
Add 200 g of the emulsion filtered with a 120 mesh screen into a 1000ml enamel cup, place the enamel cup on the mixer, fix it with a clamp, start the stirring, adjust the speed to 4000r/min, and after stirring for 0.5 h, observe whether the emulsion is broken or flocculated. If there is no obvious f... read more
First prepare a 5% calcium chloride aqueous solution: Weigh 50 g of anhydrous calcium chloride with a 1% balance, add 950 ml of water to shake well, and set aside. In a 10 ml graduated test tube, use a dropper to add 5 ml of emulsion, and then add 1 ml of 5% calcium chloride solution. Pay attention ... read more
The emulsion for architectural coatings should develop in the direction of ultra-durability and versatility. Such as actively researching and developing fluorine-containing emulsions, acrylic silicone emulsions, vinyl acetate-tertiary carbonate copolymer emulsions, room temperature cross-linking emu... read more