360E3V45508 Water Clear
专业代理伊斯曼公司产品 李醋酸纤维素 cellulose acetate；CA
系纤维素分子中羟基用醋酸酯化后得到的一种化学改性的天然高聚物。其性能取决于乙酰化程度。
市售产品可分为一般的醋酸纤维素（乙酰基含量37%～40%）。常加入增塑剂用作注塑制件如牙刷把、刷子等。高乙酰含量的醋酸纤维素（乙酰基含量40%～42%），白色粒状、粉状或棉状固体。对光稳定，不易燃烧，在稀酸、汽油、矿物油和植物油中稳定，在三氯甲烷中溶胀，溶于丙酮、醋酸甲酯等，能为稀碱液侵蚀，具有坚韧、透明、光泽好等优点，熔融流动性好，易成型加工。二氯甲烷均相法采用精制棉短绒和醋酐，以乙酰硫酸为触媒，在溶剂二氯甲烷存在下进行酯化，部分水解，可得到结合醋酸含量在60%±0.5%范围内的醋酸纤维素。传统方法是将精制棉短绒干燥，用醋酸活化，在硫酸触媒存在下，用醋酸和醋酐混合液乙酰化，然后加稀醋酸水解到所属之取代度，中和触媒，沉析，脱酸洗涤，精煮干燥得成品。经部分水解的称二醋酸纤维素，酯化度γ值220～270。未经水解的，即酯化度γ值为300者称三醋酸纤维素。二醋酸纤维素塑料可做各类工具手柄、计算机及打字机的字母数字键、机壳、汽车方向盘、纺织器材零件、收音机开关及绝缘件、笔杆、眼镜架及镜片、玩具、日用杂品等，也可做海水淡化膜。三醋酸纤维素，其熔点高，只能配成溶液后加工，用作电影胶片片基、X光片基、绝缘薄膜电磁、录音带、透明容器、银锌电池中的隔膜等。
Tenite Propionate 307E0V16310 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 307E4000018 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 350A0096914 Natural, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 350A4861313 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 350E0096912 Natural, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 350E0096914 Natural, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 358A4000008 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 358A4000018 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360A4000012 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360A4861307 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360A4861316 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360E0096907 Natural, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360E0096908m Natural Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360E0096914 Natural, Trsp. | Eastman Chemical Company | CAP |
Tenite Propionate 360E0096916 Natural, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360E2R30016 Natural, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360E3V45508 Water Clear | Eastman Chemical Company | CAP |
Tenite Propionate 360E3V45512 Water Clear | Eastman Chemical Company | CAP |
Tenite Propionate 360E3V45516 Water Clear Trsp. | Eastman Chemical Company | CAP |
Tenite Propionate 360E4861312 Clear, Trsp | Eastman Chemical Company | CAP |
Tenite Propionate 360E4861314 Clear, Trsp | Eastman Chemical Company | <TD style="PADDING-RIGHT: 2.25pt; PADDING-LEFT: 2.25pt; BACKGROUND: rgb（255,255,255）; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb（153,153,153） 0.75pt solid; WI, DTH: 74.95pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb（153,153,153） 0.75pt solid; mso-border-left-alt: 0.7500pt solid r
