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سلولوس

سلولز، یک پلی‌مر طبیعی است که در ساختار دیواره‌ی سلولی گیاهان وجود دارد و به عنوان یکی از مهمترین و...

hpmc hypromellose

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hpmc hypromellose

The journey from raw materials to finished cement begins with a mixture of limestone, clay, and other materials rich in calcium, silicon, aluminum, and iron. These ingredients are ground and mixed in precise proportions before being fed into a kiln, where they undergo a process known as calcination. Here, under high temperatures of around 1400 to 1600 degrees Celsius, carbon dioxide is driven off from the limestone, leaving behind a material called clinker. This process is not merely physical; it involves profound chemical transformations, including the breakdown and reformation of chemical bonds.

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hpmc hypromellose