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INCI名稱：醋酸丁酸纖維素
應(yīng)用/使用
汽車OEM
涂料
涂料汽車塑料
涂層布
皮革涂料
涂料塑料
涂料對(duì)木材
熱密封粘合劑
油漆汽車
油漆紙
油漆的塑料
油漆的木
指甲護(hù)理
卡車/巴士/商用車
產(chǎn)品描述
由自然本身提供一種可再生的骨干了不起的聚合物。
伊士曼™ CAB - 381- 2是一種纖維素酯酰高含量，高ASTM （ A）的粘度。除了較高的粘度和分子量，該纖維素酯共享相同的一般特征為CAB- 381- 0.1和CAB -381- 0.5 。 CAB- 381- 2提供了溶解性和相容性，防潮性，卓越的表面硬度和良好的油膜強(qiáng)度的組合。它是提供一個(gè)干燥，自由流動(dòng)的粉末。伊士曼™纖維素酯是基于高達(dá)60 ％的纖維素，豐富的天然可再生資源之一。
物性表：| Property | Typical Value, Units | |||
| Butyryl Content | 38 wt % | |||
| Acetyl Content | 13.5 wt % | |||
| Hydroxyl Content | 1.3% | |||
| Viscosity a | 7.6 poise | |||
| Color b | 125 ppm | |||
| Haze b | 35 ppm | |||
| Acidity as Acetic Acid | <0.03 wt % max. | |||
| Ash Content | 0.05% | |||
| Refractive Index | 1.475 | |||
| Heat Test @ 160°C for 8 hr | Tan melt | |||
| Melting Point | 171-184°C | |||
| Specific Gravity | 1.2 | |||
| Wt/Vol (Cast Film) | 1.2 kg/L (10.0 lb/gal) | |||
| Bulk Density | ||||
|
352 kg/m3 (22 lb/ft3 ) | |||
|
465 kg/m3 (29 lb/ft3 ) | |||
| Dielectric Strength | 787-984 kv/cm (2-2.5 kv/mil) | |||
| Glass Transition Temperature (Tg) | 133°C | |||
| Molecular Weight c Mn | 40000 | |||
| Tukon Hardness | 18 Knoops | |||
| a Viscosity determined by ASTM Method D 1343. Results converted to poises (ASTM Method D 1343) using the solution density for Formula A as stated in ASTM Method D 817 (20% Cellulose ester, 72% acetone, 8% ethyl alcohol). b Determination of color and haze made on a solution of the cellulose ester dissolved in MIBK using Pt-Co color standards and Johns-Manville Celite (diatomaceous silica products) haze standards. c Polystyrene equivalent number average molecular weight determined by gel permeation chromatography. |
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