كحول البولي فينيل (PVA): المواصفات والتطبيقات ورؤى الصناعة
كحول البولي فينيل (PVA) هو بوليمر صناعي عالي الأداء، معروف بقدرته الاستثنائية على تكوين الأغشية، وذوبانه في الماء، وخصائصه اللاصقة القوية. يُستخدم PVA على نطاق واسع في مختلف الصناعات، وهو مكون أساسي في تحديد أحجام المنسوجات، وطلاءات الورق، والمواد اللاصقة، ومواد البناء. تُحدد مواصفاته، بما في ذلك درجة التحلل المائي واللزوجة، مدى ملاءمته لتطبيقات مختلفة. يوفر PVA المُحلل بالكامل قوة غشاء ومقاومة كيميائية فائقة، بينما توفر الدرجات المُحللة جزئيًا قابلية ذوبان أفضل. يلعب PVA دورًا محوريًا في التصنيع الحديث، بدءًا من تعزيز متانة المنسوجات وصولًا إلى تحسين قوة التصاق المواد اللاصقة. تستكشف هذه المقالة مواصفات PVA وتطبيقاته الرئيسية، لمساعدتك في اختيار الدرجة المناسبة لاحتياجاتك.
Polyvinyl Alcohol (PVA) is a versatile synthetic polymer known for its excellent film-forming, emulsifying, and adhesive properties. Due to its unique water solubility and chemical resistance, PVA is widely used in industries like textiles, paper manufacturing, construction, and adhesives.
WanWei PVA Specification(Non Fiber Grade)
Hydrolysis Degree (%): Determines the solubility of PVA in water. Higher hydrolysis levels (98-99%) result in limited water solubility, while partially hydrolyzed PVA dissolves more easily.
Viscosity (mPa.s): A key factor in determining the thickness and flow properties of PVA solutions, affecting applications in adhesives, coatings, and films.
| غرض | اللزوجة (mPa.s) | Average Degree of Polymerization | Degree of Alcoholysis (Mol/mol) | الوزن الجزيئي | متقلب (%) | رُطُوبَة (%) | رماد (%) | pH |
|---|---|---|---|---|---|---|---|---|
| 04-88 (L) | 3.0-4.5 | / | 86.0-90.0 | / | 7.0 | 2.8 | 1.0 | 5-7 |
| 04-99 (L) | 3.0-4.5 | 300-450 | 98.0-100.0 | 13200-19800 | 7.0 | 2.8 | 1.0 | 5-7 |
| 05-88(L) | 4.0-6.0 | / | 86.0-90.0 | 17600-26400 | 7.0 | 2.8 | 1.0 | 5-7 |
| 05-99 (L) | 4.0-6.0 | 450-600 | 98.0-100.0 | 19800-26400 | 7.0 | 2.8 | 1.0 | 5-7 |
| 10-92 (L) | 8.0-10.0 | / | 90.0-94.0 | / | 7.0 | 2.8 | 1.0 | 5-7 |
| 10-99 (L) | 9.0-14.0 | 900-1100 | 98.0-100.0 | 39600-48400 | 7.0 | 2.8 | 1.0 | 5-7 |
| 14-92 (L) | 13.0-18.0 | / | 90.0-94.0 | / | 7.0 | 2.8 | 1.0 | 5-7 |
| 15-99 (L) | 20.0-26.0 | 1450-1650 | 98.0-100.0 | 63800-72600 | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-80 (L) | 18.0-24.0 | / | 78.0-82.0 | / | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-88 (L) | 20.0-28.0 | / | 86.0-90.0 | 72600-81400 | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-92 (L) | 20.0-30.0 | / | 90.0-94.0 | 72600-81400 | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-95 (L) | 20.0-30.0 | / | 94.0-96.0 | 72600-81400 | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-96 (L) | 20.0-30.0 | / | 94.0-98.0 | / | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-97(L) | 21.0-31.0 | 1650-1850 | 96.0-98.0 | 72600-81400 | 8.0 | 3.8 | 2.0 | 5-8 |
| 17-98 (L) | 20.0-30.0 | 1600-1800 | 97.0-99.0 | 70400-79200 | 7.0 | 2.8 | 1.0 | 5-7 |
| 17-99 (L) | 20.0-26.0 | 1680-1850 | 98.0-100.0 | 73900-82700 | 7.0 | 2.8 | 1.5 | 5-7 |
| 17-99 (H) | 20.0-26.0 | 1650-1850 | 98.5-100.0 | 72600-81400 | 9.0 | 7.0 | 3.0 | 5-7 |
| 19-99 (L) | 26.0-32.0 | 1800-2000 | 98.0-100.0 | 79200-88000 | 7.0 | 2.8 | 1.0 | 5-7 |
| 20-88 (L) | 28.0-40.0 | / | 86.0-90.0 | 81400-94600 | 7.0 | 2.8 | 3.0 | 5-7 |
| 20-99 (L) | 32.0-40.0 | 2000-2200 | 98.0-100.0 | 88000-96800 | 7.0 | 2.8 | 1.5 | 5-7 |
| 20-99 (H) | 34.0-42.0 | 2000-2300 | 98.5-100.0 | 88000-101200 | 9.0 | 7.0 | 1.0 | 5-7 |
| 22-99 (L) | 40.0-48.0 | 2200-2400 | 98.0-100.0 | 96800-105600 | 7.0 | 2.8 | 1.5 | 5-7 |
| 23-99 (H) | 42.0-55.0 | 2300-2600 | 98.5-100.0 | 101200-114400 | 9.0 | 7.0 | 3.0 | 5-7 |
| 24-88 (L) | 40.0-55.0 | / | 86.0-90.0 | 101200-110000 | 7.0 | 2.8 | 1.5 | 5-7 |
| 24-99 (L) | 48.0-60.0 | 2400-2600 | 98.0-100.0 | 105600-114400 | 7.0 | 2.8 | 1.5 | 5-7 |
| 26-99 (L) | 60.0-75.0 | 2600-2800 | 98.0-100.0 | 114400-123200 | 7.0 | 2.8 | 3.0 | 5-7 |
| 28-99 (L) | 75.0-90.0 | 2800-3000 | 98.0-100.0 | 123200-132000 | 7.0 | 2.8 | 1.5 | 5-7 |
Wanwei PVA Main Application
PVA is extensively used in textiles for fabric finishing and warp sizing, enhancing fiber strength during weaving. In adhesives, it serves as a key ingredient in wood glue and paper adhesives due to its strong bonding properties. Additionally, PVA plays a critical role in construction as a cement additive, improving workability and adhesion.
| غرض | طلب |
|---|---|
| 04-88(L) 04-99(L) 05-88(L) | Medicine film, Outer pharmaceutical base materials, Water soluble film, High count,Flat printing photosensitive film, Paper making, Emulsion. |
| 05-99(L) 10-92(L) 14-92(L) | Medicine film, Outer pharmaceutical base material,Warp size, Emulsifier |
| 10-99(L) 17-80(L) | PVA dispersant in polymerization |
| 15-99(L) 17-88(L) 20-88(L) | Concrete modifier for oil well cemmenting, Soil improcement agent, Wet adhesive,Warp size,PVA film,PVAC Emulsion protective colloid, Light-sensitive Glue, PVB and so on. |
| 17-92(L) 17-96(L) 17-95(L) 17-98(L) 17-97(L) 19-99(L) 17-99(L) 20-99(H) 17-99(H) | Fabric sizing material, Fabric finishing agent, Paper surface sizing agent, Paper pigment binder, Paper adhesive, Emulsifier, PVA film, Thermoseting resin modifier, Ferrite bonded material, Dispersant, Coating, Clue, PVA, PVF and so on. |
| 17-99F(L) 17-99F(H) 26-99(L) | Vinylon, HSHM-PVA Fiber, Water soluble fiber, Flame reterdant hollow fiber and so on. |
| 26-99(L) | High viscosity adhesive, High-grade paint |
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