The Most well-liked epoxy resins are possibly diglycidyl ethers of bisphenol A, which can be designed by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular bodyweight is managed by adjusting the ratio of ECH to BPA; significant ratios generate lower molecular weights. Phenols also present fantastic warmth resistance and https://www.propanraya.com/kategori/cat-lantai
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