सिलिकॉन डाइऑक्साइड

परिचय

सिलिकॉन डाइऑक्साइड प्लास्टिक मूल्य श्रृंखला में एक मौलिक अकार्बनिक कच्चा माल है और कांच, इलेक्ट्रॉनिक्स, निर्माण, भोजन, फार्मास्यूटिकल्स और पॉलिमर कंपाउंडिंग में प्रयुक्त एक प्रमुख औद्योगिक खनिज है। इसे सिलिका के रूप में भी जाना जाता है, यह क्वार्ट्ज जैसे क्रिस्टलीय रूपों और अवक्षेपित सिलिका, फ्यूम्ड सिलिका, कोलाइडल सिलिका और सिलिका जेल जैसे अनाकार रूपों में मौजूद है, प्रत्येक को विभिन्न प्रदर्शन और प्रसंस्करण कार्यों के लिए चुना जाता है।

प्लास्टिक और सहायक सामग्रियों में, सिलिकॉन डाइऑक्साइड को मुख्य रूप से रिइन्फोर्सिंग फिलर, रियोलॉजी मॉडिफायर, एंटी-केकिंग एजेंट, मैटिंग एजेंट, थिकनर और desiccant के रूप में महत्व दिया जाता है, जबकि उच्च-शुद्धता सिलिका अर्धचालकों, ऑप्टिकल फाइबर और विशेष coatings में अपरिहार्य है। इसका महत्व कठोरता, थर्मल स्थिरता, रासायनिक प्रतिरोध, इंजीनियर्ड ग्रेड में उच्च सतह क्षेत्र और सिलेनॉल समूहों द्वारा प्रभावित सतह रसायन के असामान्य संयोजन से आता है, जो कई सिलिका ग्रेड को पॉलिमर, नमी और ध्रुवीय additives के साथ दृढ़ता से अंतःक्रियात्मक बनाता है।

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