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 Products
Rubber Antioxidant BLE
 Adopting special technology of synthesis and separation developed by the School of Chemistry and Chemical Technology of Shanghai Jiao Tong University.
Easy using and high safety.
Especially fit for poly (butadiene-styrene) and nature rubber.
Chemical Name: 9,9-dimethylacridine
Molecular formula and Molecular Weight: C15H15N=209.32
Molecular Structure:
CAS NO.: 68412-48-6
Properties
Rubber Antioxidant BLE is high temperature reaction products of diphenylamine and acetone. Their main ingredients are 9, 9-dimethylacridine. The appearance of a commercial product is dust-color and viscous liquid. The relative density of Rubber Antioxidant BLE is 1.09 ± 0.05. It is easily dissolved in acetone, benzene, chloroform, carbon disulfide, ethanol, partly done in gasoline, not done in water.
Application 
Rubber antioxidant BLE is an excellent rubber antioxidant. It is able to greatly improve properties of poly (butadiene-styrene) rubber and nature rubber, including anti-ozone, heat-resistant, antifriction and flexibility, especially used in rubber tire. The recommended dosage is 1-3%. Antioxidant BLE is not suitable for applying in light-color rubber products because it has staining property. Its antioxidant efficacy is increased obviously when it is used together with antioxidant-H or antioxidant-4010. Antioxidant BLE is promised to use in materials contacting with food by USA Food and Drug Administration. The maximum additive quantity is less 5%.
Packing and Storage
Packing:
BLE Liquid: 200kg/drum
BLE-65 Powder: Outer packing: 25kg/paper bag lined with plastics; Inner packing: black light-resistant polythene bag.
Storage: Stored in shaded dry, cool place with good ventilation. Keep fireproofing and moisture proof and prevent sun burning.
Quality Assuring Period
Quality assuring Period is 12 months. May turn dark after exposure to light and air, although this doesn't affect function.
Conformation of Standard: GB/T11409.7-89, GB/T11409.4-89, GB4472-84
Technical Standard
Table 1 Rubber Antioxidant BLE Liquid
| Item |
Standard |
Viscosity (25℃) |
1500-3000 centipoises |
Ash (800℃, 4hr) |
≤ 0.3% |
Heating lost weight (100℃, 2hr) |
≤ 0.4% |
Density (25℃) |
1.06-1.12 |
Appearance |
Dark-brown viscous liquid |
Table 2 Rubber Antioxidant BLE-65 Powder
| Item |
Standard |
BLE Organic Content (%) |
≥65 |
Heating lost weight (%) |
≤5 |
Residue (%) |
≤35 |
Appearance |
Dark-brown, free-flowing powder |
BLE Powder consists of BLE Liquid and carrier SiO2.
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