Cellulose acetate butyrate (CAB) with the CAS number 9004 - 36 - 8 is a cellulose ester. It is a white to off - white granular solid. The product is factory - supplied and offered at the best price. CAB is derived from cellulose, a natural polymer found in plants. The degree of substitution of acetyl and butyryl groups can vary, which affects its physical and chemical properties such as solubility, melting point, and mechanical strength.
It has good solubility in a wide range of solvents, including ketones, esters, and chlorinated hydrocarbons. The density of CAB typically ranges from 1.15 - 1.25 g/cm³. Its molecular weight can vary depending on the production process and the specific grade, but it generally falls within a certain range that provides desirable properties for various applications.
1. Coatings: CAB is widely used in the coatings industry. It can improve the flow and leveling of coatings, enhance the gloss and durability of the coating film. In automotive coatings, it can help to achieve a smooth and high - quality finish, and also provide resistance to weathering, chemicals, and abrasion.
2. Inks: In the ink industry, CAB can be used as a binder. It improves the adhesion of inks to various substrates, such as plastics, paper, and metals. It also helps to control the drying time of inks, ensuring a clear and long - lasting print.
3. Plastics: It can be blended with other polymers to modify their properties. For example, adding CAB to polyvinyl chloride (PVC) can improve its flexibility, transparency, and impact resistance.
4. Adhesives: CAB - based adhesives have good bonding strength and can be used for bonding different materials, such as wood, plastics, and metals.
When using cellulose acetate butyrate, it is important to first select the appropriate grade according to the specific application. For coatings, the viscosity and solubility of the selected CAB grade should match the coating formulation.
1. Dissolving: CAB needs to be dissolved in a suitable solvent. The choice of solvent depends on the solubility characteristics of the CAB grade. The dissolution process should be carried out under appropriate temperature and stirring conditions to ensure a homogeneous solution.
2. Mixing: In a coating or ink formulation, CAB is often mixed with other additives such as pigments, fillers, and curing agents. The mixing should be thorough to ensure uniform distribution of all components.
3. Application: The prepared solution can be applied to the substrate by various methods, such as spraying, brushing, or dip - coating. The application conditions, such as temperature and humidity, should be controlled to ensure a good coating or printing quality.
1. Automotive Coating Case: A major automotive manufacturer was looking to improve the quality of their top - coat paint. They chose to use our factory - supplied cellulose acetate butyrate. By adding CAB to their coating formulation, they were able to achieve a more uniform and high - gloss finish. The coatings showed excellent resistance to scratching and weathering, which extended the lifespan of the car's paint job. After a series of road tests and environmental exposure tests, the cars with CAB - enhanced coatings maintained their appearance much better than the previous formulations.
2. Plastic Blending Case: A plastic product manufacturer wanted to improve the flexibility and transparency of their PVC products. They blended our CAB with PVC. The resulting plastic products had better impact resistance and were more suitable for applications where transparency and flexibility were required, such as in the production of plastic tubes and sheets. The blended plastics also had better processability during the injection - molding process.
If you have any questions or need further information about our Factory Supply Cellulose acetate butyrate CAS 9004 - 36 - 8, please feel free to contact us.
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