Keywords
yog‘och
FTIR
silikat tuzilma
Si-O
Al-O
yong‘indan himoyalash samaradorligi
massa yo‘qotilishi.
How to Cite
Abstract
Ushbu maqolada oldingi tadqiqotda eng samarali deb topilgan ikkita antipiren kompozitsiyasi: AP-240 va AP-250 namunalarining IK-spektroskopiya usuli tahlil qilindi. Spektrlar Shimadzu rusumli FTIR spektrometrda 4000-400 sm⁻¹ diapazonda, 4 sm⁻¹ spektral ajratuvchanlik va 10 ta skan yig‘indisi bilan qayd etildi. AP-240 spektrida organik komponentlarga xos C-H va C=O polosalari bilan bir qatorda Si-O, Al-OH hamda metall kislorod bog‘lanishlariga mos signallar kuzatildi. AP-200 spektrida esa 1153 va 993 sm⁻¹ sohalardagi silikat yoki alyumosilikat tuzilmalarga xos yutilish polosalari ustun bo‘ldi. Olingan natijalar AP-200 namunasida noorganik faza nisbatan yaqqol ifodalanganini ko‘rsatadi. Bu holat GOST 16363-98 bo‘yicha aniqlangan massa yo‘qotilishi ko‘rsatkichlari (AP-200 - 8,5%; AP-240 - 9,8%) bilan sifat jihatidan uyg‘un bo‘lib, qoplamaning himoya ta’sirida issiqlik va massa almashinuvini cheklovchi noorganik qatlam muhim o‘rin tutishi mumkinligini ko‘rsatadi. Biroq FTIR ma’lumotlari funksional guruhlar va tarkibiy xususiyatlarni tavsiflaydi; himoya qatlamining yuqori haroratda shakllanish mexanizmini to‘liq tasdiqlash uchun qizdirilgandan keyingi FTIR, termik va morfologik tahlillar zarur.References
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