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Technical requirements for industrial cellulose acetate flake
Industrial cellulose acetate flake are white powder particles or strip like, with no visible mechanical impurities. They are divided into two categories based on their applications: spinning and plastic. Spinning vinegar flakes are used to manufacture yarn bundles for textiles or cigarette filter rods. Plastic vinegar tablets are used to manufacture plastic products such as mirror frames and filter membranes.
Technical requirements for industrial cellulose acetate flake
Project | Indicator | |
Spinning category | Plastic category | |
Acetyl value( CH3COOH), w / % | Design valuea ±0.50 | Design valuea ±0.50 |
Intrinsic viscosity/( dL / g ) | Design valuea ±0.50 | Design valuea ±0.50 |
水分, w / % | ≤6.0 | ≤3.0 |
Plugging value/(g / cm2 ) | ≥25 | ≥50 |
Free acidity( CH3COOH), w / % | ≤0.010 | ≤0.010 |
Heat stability | - | Qualified |
brightness L | - | ≥92. 0 |
color a | - | ≤0.0 |
color b | ≤6.0 | ≤3.0 |
The design values are agreed upon by the supplier and the user in the supply contract agreement. | ||
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