Ürün Özellikleri
LEAD | |
Construction | |
Other | |
Other Adhesives |
Product Descriptions
ItemIndicatorModel
Methoxy, % 27-30 19-24
Hydroxypropyl, % 7.0-12 7.0-12
Gel temperature, ℃ 55-68 70-90
Moisture, % ≤5
Ash, % ≤5
PH value: 6-8
Viscosity (2%, 20℃) 5-200000
Hydroxypropyl methylcellulose (HPMC) is made of refined cotton after being pulverized, then reacted with sodium hydroxide (liquid caustic soda) solution for alkalization, and then added chloromethane propylene oxide for etherification reaction to form crude HPMC After neutralization (PH value adjustment), pressure filtration, drying, crushing and sieving, a certain fineness of pure HPMC can be obtained. The finished product has a slight odor, the smell of methane.
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