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Synthesis and propertes and uses of polyvrethanes

Taqdimotlar | Kimyo
Synthesis and propertes and uses of polyvrethanesSynthesis and propertes and uses of polyvrethanesSynthesis and propertes and uses of polyvrethanesSynthesis and propertes and uses of polyvrethanesSynthesis and propertes and uses of polyvrethanes
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  • Betlar soni:
    7 ta
  • Fayl hajmi :
    11.08 MB
  • Fayl turi:
    .pptx
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Poliuretanlarning sintezi jarayonlari poliol va izosiyanat birikmalarining reaksiyasidan tashkil topadi. Ushbu jarayon ikki asosiy bosqichni o'z ichiga oladi. Reaksiya harorati odatda 25-80°C oralig'ida bo'lib, katalizatorlar qo'shilishi orqali tezlashtirilishi mumkin
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