荧光增白剂OB
结构式：
化学名称：2,5—双(5-叔丁基—2-苯并噁唑基)噻吩
分子式：C26H26N2O2S
分子量：430.2 (按1997年国际相对原子质量)
最大紫外吸收波长：375 nm (乙醇中)
最大荧光发射波长：435 nm
执行标准：Q/LQHOO9-2003
质量标准：
|
项 目 |
指 标 |
|
1) 外观 |
淡黄色或乳白色粉末 |
|
2) 纯度 |
≥ 99.0 % |
|
3) 熔点 |
201-202℃ |
|
4) 挥发份 |
≤ 0.1％ |
|
5) 灰份 |
≤ 0.4% |
性能与用途:
荧光增白剂OB属于苯并噁唑类的增白剂，无味、难溶于水，溶于烷烃、脂肪、矿物油、蜡及通常的有机溶剂中。
荧光增白剂OB可用于热塑性塑料、聚氯乙烯、聚苯乙烯、聚乙烯、聚丙烯、聚甲基丙烯酸甲酯、ABS、醋酯纤维、清漆、白磁漆、紫外光固化涂料、印刷油墨等的增白。也可用于蜡、脂肪、油类、泡沫人造革、片材、家用电器用品，包装材料等的增白。
增白剂OB用于各加工阶段中聚合物的增白，可赋于加工品明亮兰白色光泽，在印刷油墨中应用本品,可鉴定产品可靠性等作标志，并应用于防止伪造品而作特殊标记。
使用方法：
彻底分散在整个聚合物中，如果在聚合物中添加任何紫外线吸收剂时应注意适当调整荧光增白剂OB的最佳用量。
用量：
PVC 白色制品 0.01-0.05% 透明 0.0001-0.001％
PS 白色制品 0.001% 透明 0.0001-0.001%
ABS 本色 0.01-0.05% 白色 0.01-0.05%
PE/PP 白色制品 0.005-0.05% 透明 0.0005-0.001%
包装：铁桶或纸板桶内衬塑料袋，每件净重5 kg或25kg。
贮存： 应贮存于阴凉、干燥的库房内。
FLUORESCENT BRIGHTENEROB
C.I.184 CAS：7128-64-5
STRUCTURE:
CHEMICAL NAME: 2,5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
MOLECULAR FORMULA: C26H26N2O2S (As International relative Atom Mass 1997)
MOLECULAR WEIGHT: 430.2
Max UV ABSORPTION WAVELENGTH: 375 nm (ethanoll)
Max OPTICAL EMITTING WAVELENGTH: 435 nm
EXCUTIVE STANDARD: Q/LQH009-2003
SPECIFICATIONS:
|
Item |
Indices |
|
Appearance |
light yellow or milk white powder |
|
Purity |
≥ 99.0 % |
|
Melting point |
201-202℃ |
|
Ash |
≤ 0.1％ |
|
Volatile content |
≤ 0.4% |
PROPERTIES:
Optical brightenerOBis a kind of benzoxazole compound, lt is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added at any stage in the process of whitening the polymers and make the finished products emitt a bright bluish white glaze.
It can also be used as special marks in identify fakless material if used in printing ink.
DIRECTION FOR USAGE:
Thoroughly dispersed in all those polymers.If any ultral violet spectrum absorption agent is used in the polymers, the optimal dosage of optical brightenerOBshould be adjusted.
DOSAGE: (per100 kgpolymer ):
PVC white 0.01-0.05% (10-50g) transparent 0.0001-0.001% (0.1-1g)
PS white 0.001% (about1g) transparent 0.0001-0.001% (0.1-1g)
ABS natural color 0.01-0.05% (10-50g) white 0.01-0.05% (10-50g)
PE, PP colorless 0.0005-0.001% (0.5-1g) white 0.005-0.05% (5-50g)
Other plastic are like above
PACKAGE: Packaged in iron drum or cardboard barrels. Net weight is25 kgor50 kgeach.
STORAGE: Should be stored in cool and dry place.
