Polivinil spirti (PVA 1788, PVA 0588, PVA 2488)
PVA darajalari va texnik xususiyatlari
| Yangi | Gidroliz | Uchuvchi moddalar | Yopishqoqlik | Ash | PH | Tozalik |
| Ism | (mol%) | (%) | (mpa.s) | (og'irlik%) | Qiymat | (og'irlik%) |
| 088-03 | 87,0 – 89,0 | ≤5,0 | 3,0-4,0 | ≤0,7 | 5-7 | ≥93,0 |
| 088-04 | 87,0 – 89,0 | ≤5,0 | 4,0-4,5 | ≤0,7 | 5-7 | ≥93,0 |
| 098-04 | 98,0-98,8 | ≤5,0 | 4,0-5,0 | ≤0,5 | 5-7 | ≥93,5 |
| 088-05 | 87,0 – 89,0 | ≤5,0 | 4,5-6,0 | ≤0,5 | 5-7 | ≥93,5 |
| 098-05 | 98,0-99,0 | ≤5,0 | 5,0-6,5 | ≤0,5 | 5-7 | ≥93,5 |
| 098-10 | 97,0-99,0 | ≤5,0 | 8,0-12,0 | ≤0,5 | 5-7 | ≥93,5 |
| 088-13 | 87,0 – 89,0 | ≤5,0 | 12,0-14,0 | ≤0,5 | 5-7 | ≥93,5 |
| 098-15 | 98,0 -99,0 | ≤5,0 | 13,0-17,0 | ≤0,5 | 5-7 | ≥93,5 |
| 093-16 | 92,5-94,5 | ≤5,0 | 14,5-18,5 | ≤0,5 | 5-7 | ≥93,5 |
| 098-20 | 98,0-99,0 | ≤5,0 | 18,0-22,0 | ≤0,5 | 5-7 | ≥93,5 |
| 088-20 | 87,0 – 89,0 | ≤5,0 | 20,5-24,5 | ≤0,4 | 5-7 | ≥93,5 |
| 092-20 | 91,0-93,0 | ≤5,0 | 21,0-27,0 | ≤0,5 | 5-7 | ≥93,5 |
| 096-27 | 96,0-98,0 | ≤5,0 | 23,0-29,0 | ≤0,5 | 5-7 | ≥93,5 |
| 098-27 | 98,0 – 99,0 | ≤5,0 | 23,0-29,0 | ≤0,5 | 5-7 | ≥93,5 |
| 088-26 | 87,0 – 89,0 | ≤5,0 | 24,0-28,0 | ≤0,5 | 5-7 | ≥93,5 |
| 095-28 | 94,0-96,0 | ≤5,0 | 26,0-30,0 | ≤0,5 | 5-7 | ≥93,5 |
| 098-30 | 98,0 – 99,0 | ≤5,0 | 28,0-32,0 | ≤0,5 | 5-7 | ≥93,5 |
| 088-35 | 87,0 – 89,0 | ≤5,0 | 29,0-34,0 | ≤0,3 | 5-7 | ≥93,5 |
| 088-50 | 87,0 – 89,0 | ≤5,0 | 45,0-55,0 | ≤0,3 | 5-7 | ≥93,5 |
| 088-60 | 87,0 – 89,0 | ≤5,0 | 50,0-58,0 | ≤0,3 | 5-7 | ≥93,5 |
| 097-60 | 96,0-98,0 | ≤5,0 | 56,0-66,0 | ≤0,5 | 5-7 | ≥93,5 |
| 098-60 | 98,0 – 99,0 | ≤5,0 | 58,0-68,0 | ≤0,5 | 5-7 | ≥93,5 |
| 097-70 | 96,0 - 98,0 | ≤5,0 | 66,0-76,0 | ≤0,5 | 5-7 | ≥93,5 |
| 098-75 | 98,0 – 99,0 | ≤5,0 | 70,0-80,0 | ≤0,5 | 5-7 | ≥93,5 |
Emulsiya stabilizatori va biriktiruvchi
PVA vinil asetat (VAc) yoki VAc/akrilatning emulsion polimerizatsiyasi uchun himoya kolloid yoki qalinlashtiruvchi sifatida keng qo'llanilishi mumkin.quyidagi xususiyatlarga ega: a'lo darajada yopishqoqlik; plomba bilan ishlatilganda dastlabki yopishqoqlik va quritish tezligini oshiradi;neftga mukammal qarshilik;ajoyib film.
Elyaf ishlab chiqarishda
PVA ning ikkita muhim qo'llanilishi to'qimachilik uchun vinil xom ashyosi va o'lchov agenti sifatida ishlatilishi kerak. Vinilon tolasi xom ashyosi sifatida yuqori quvvat, namlik assimilyatsiya qilish, aşınma qarshilik, quyosh nuriga chidamlilik, korroziyaga chidamlilik va oq rangdagi afzalliklarga ega.Bundan tashqari, paxta, jun va viskoza tolasi bilan yigirilishi yoki o'zi bilan yigirilishi mumkin. To'qimachilik uchun o'lchov vositasi sifatida u paxta, kanop, poliester va viskoza tolasiga yaxshi yopishgan holda korroziyaga uchramaydi yoki yomonlashmaydi.
Pulp & PaperPVA qog'oz yuzasini qayta ishlashda keng qo'llaniladi, chunki u mukammal yopishqoqlik va dispersiyaga ega va kombinatsiyalangan holda ishlatiladigan boshqa bog'lovchilarning xususiyatiga ta'sir qilmaydi.PVA dan foydalanishning afzalliklari: Yuzaki mustahkamlik (bosib chiqarish qobiliyati); Z o'qi bo'ylab mustahkamlik (qog'ozning ichki quvvati); Katlamaga qarshilik; Aşındırıcı qarshilik; Yaxshilangan silliqlik; Yaxshilangan sirt yorqinligi; Yog 'va erituvchiga chidamliligi (to'siq xususiyati).
Film
PVA suvda eruvchan plyonka va suvga chidamli plyonka ishlab chiqarish uchun ishlatilishi mumkin. PVA PVA ning o'ziga xos xususiyatlarini, ya'ni yuqori kuchlanishga chidamliligini, organik erituvchiga chidamliligini va havo o'tkazmasligini ta'kidlaydigan shakllangan mahsulotlarda mavjud. Ularning ikkalasi ham keng qo'llaniladi. qadoqlash sanoati, nafaqat to'qimachilik, balki kimyo, oziq-ovqat, kundalik kimyoviy moddalar, qishloq xo'jaligi kimyoviy moddalari, bo'yoqlar va boshqalar uchun.
Dispersiya stabilizatori
Kolloid himoyasida mukammal bo'lgan va yuqori sirt faolligiga ega bo'lgan PVA ko'pincha vinilxlorid monomerining (VCM) suspenziya polimerizatsiyasi uchun dispersiya stabilizatori sifatida ishlatiladi.PVX qatronining ishlashi tegishli polimerizatsiya va gidroliz darajasiga ega mos PVA sinfini tanlash orqali sezilarli darajada optimallashtirilishi mumkin.
Har doim barqaror ta'minot va raqobatbardosh narxni ta'minlash uchun PVA uchun 1000 m2 dan ortiq omborimiz bor.
