The PVA 1788G production facilities of our company have been perfecting day by day with the long-term absorption and technological transformation on the basis of importing the complete set of technology from European Company. PVA produced by our company is good in performances and stable in quality. It enjoys a great reputation both at home and abroad.
Produk Fitur:
Analisis Alkohol Parsial.
Viskositas rendah.
Nilai Setara:
088-20
Kuraray PVA-220
Kuraray Mowiol 23-88
CCP BP-17
Sekisui Selvol 523 - Celanese
JVP JP-18
Nichigo GM-14
Produk Parameter (Spesifikasi)
|
Item |
PVA 1788G |
|
Hidrolisis (mol%) |
87.0 ~ 89.0 |
|
Viskositas (mPa.s) |
20.0 ~ 26.0 |
|
Mudah menguap (wt%) |
≤5.0 |
|
Abu (wt%) |
≤0.5 |
|
Nilai pH |
5 ~ 7 |
|
Kemurnian (%) |
≥91.5 |
|
Partikel Ukuran |
20~25jala |
Penyimpanan: Produk harus disimpan di ruangan yang kering dan berventilasi dengan suhu ruangan 5-30 ℃ dan disimpan dalam beberapa kelompok. Jauhkan dari listrik, kelembaban, dan sinar matahari. Dilarang keras menyimpan bersama dengan bahan kimia yang mudah menguap untuk mencegah kerusakan akibat adsorpsi.
Transportasi: Saat mengangkut, diperlukan kendaraan yang bersih, perlu memperhatikan untuk menghindari kelembaban, hujan dan perlindungan dari sinar matahari. Tangani dengan hati-hati untuk mencegah kerusakan kemasan. Dilarang keras menyimpan bersama dengan bahan kimia yang mudah menguap untuk mencegah kerusakan adsorpsi
PERTANYAAN YANG SERING DIAJUKAN
Q: Apa Indeks properti dari polivinil alkohol?
A: Polyvinyl alcohol PVA is a solid substance, colorless and scentless in the shape of floccus, flake or granule. As it contains plenty of hydroxyl groups in its molecule, PVA is easily soluble in water as well as in organic compounds also containing hydroxyl such as glycerol, glycol, acetic acid, acetaldehyde and benzoic acid, except for general organic solvents in which it is insoluble. When heated up to 130-140℃, PVA gets yellow without essential changes in nature; when at 160℃ for a longer time, it gets darker; at 200℃, inter-molecular dehydration takes place with lower water solubility; at above 200℃, intra-molecular dehydration takes place; nearly at 300℃, PVA is decomposed into water, acetic acid, acetaldehyde and crotonaldehyde. The bulk densities of PVA vary depending on methods of alcoholysis: 0.2~0.27g/ml for high alkali alcoholysis and 0.42~0.52 g/ml for low alkali alcoholysis
Tag Populer: PVA 1788GA, Cina, Produsen, Pemasok, Pabrik, Grosir, Disesuaikan, Sampel Gratis, Merek, Harga, Kualitas
