Cradle to Gate
Identity ID
900c12e6-79cc-48e9-8cd0-723fd83857ff
Materials
Associated ID
95281af8-7011-4648-8449-7c832cffb909
Included activities starts
Included activities ends
Description
ABS resin is primarily used in formulating solvent-based adhesives for bonding polystyrene-type plastics. Due to its high impact resistance, chemical resistance, electrical properties, good processability, and electroplating performance, ABS resin is widely used in the automotive, electronics and electrical industries, office equipment, and construction piping applications. The dataset includes major primary and auxiliary materials, energy consumption, atmospheric emissions, and waste generated during the production process; infrastructure such as manufacturing of production equipment and construction of facilities are not within the system boundary of the dataset. The life cycle inventory is compiled from multiple data sources. By-products include acrylonitrile, MMA, and acetonitrile. Energy consumption data are allocated based on the mass allocation principle. ABS resin is produced via the emulsion grafting and bulk styrene-acrylonitrile (SAN) blending method. Production activities include the polybutadiene unit (monomer and chemical preparation, polybutadiene emulsion polymerization, monomer recovery, product handling) and HRG (polybutadiene) , acrylonitrile, styrene, MMA polymer units, SAN (acrylonitrile, styrene polymer) units, blending units, waste gas treatment units, etc.
Activity Description
ABS resin is produced using an emulsion grafting-bulk styrene-acrylonitrile copolymer (SAN) blending method. The production process of this product includes the polybutadiene unit (monomer and chemical preparation, polybutadiene emulsion polymerization, monomer recovery, and product handling), the HRG unit (polybutadiene, acrylonitrile, styrene, and MMA polymerization), the SAN unit (acrylonitrile and styrene polymerization), the blending unit, and the waste gas treatment unit.
Process Description
ABS is a terpolymer of three monomers: acrylonitrile (A), butadiene (B), and styrene (S). Its molecular formula can be expressed as (C8H8·C4H6·C3H3N)x, where the relative proportions of the three monomers can be varied to produce various types of resins. ABS resin combines the properties of its three components, exhibiting excellent mechanical and thermal performance. It has been widely used in the manufacturing industries of machinery, electrical equipment, textiles, automobiles, aircraft, ships, as well as in the chemical industry.
Time period
2019
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The emulsion grafting-bulk SAN blending method refers to a process where the ABS graft powder is produced via emulsion polymerization, while the SAN resin blended with the ABS graft powder is synthesized by the bulk method. The advantages of producing ABS resin by this method include the ability to adjust blending ratios and the types and quantities of additives to manufacture different grades of ABS resin. This technology is advanced and reliable, offering a wide range of applications, excellent performance, and relatively low pollution. The main process principle involves dissolving polybutadiene rubber with styrene, acrylonitrile monomers, MMA, and a solvent, followed by bulk polymerization to produce ABS resin.