The most popular epoxy resins are possibly diglycidyl ethers of bisphenol A, and that is designed by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular bodyweight is controlled by modifying the ratio of ECH to BPA; significant ratios crank out lower molecular weights. These particles Possess a significant surface https://www.propanraya.com/kategori/cat-lantai