Classification of Rubber Additives
Bio-based / Petroleum-based
Rubber additives can be classified into petroleum-based and bio-based types according to their raw material sources. The essential difference between the two lies in the carbon cycle path and sustainability.
1. Bio-based Type
These are rubber processing additives prepared from renewable biomass (such as vegetable oils, starch, lignin, natural rubber and their derivatives) through biological fermentation, chemical modification or green synthesis processes. They are renewable but may face issues regarding the stability of raw material supply.Their core feature is that the raw materials come from the biosphere carbon cycle, with low carbon emission potential, which conforms to the concept of sustainable development.
Examples: Bio-based plasticizers (such as epoxidized soybean oil, etc.), bio-based antioxidants (such as plant polyphenols, etc.), bio-based reinforcing resins, etc.
2. Petroleum-based Type
These are traditional additives produced from fossil resources such as petroleum and natural gas through petrochemical processes (such as cracking and catalytic synthesis). They have the advantages of mature technology and stable performance, but rely on non-renewable resources and have high carbon emissions.
Examples: Petroleum-based plasticizers (such as phthalate esters), petroleum-based carbon black (reinforcing fillers), aromatic oil (softening agents), antioxidants, accelerators, processing aids and other types of additives.
Comparative Overview
Aspect | Bio-based | Petroleum-based |
Raw Material Source | Renewable biomass (plants, microorganisms, etc.) | Fossil energy sources such as petroleum and natural gas |
Environmental Impact | Low carbon footprint, poor degradability | High energy consumption in production, may contain environmental pollutants (e.g., PAHs) |
Performance Features | Heat resistance and compatibility of some products need optimization | Stable performance, wide applicability |
Cost & Industrialization | Large fluctuation in raw material prices, difficult large-scale production | Mature industrial chain, low cost |
Policy Orientation | Encouraged by green policies and regulations (e.g., global climate agreements) | Faced with restrictions on traditional energy consumption prevention and control |
The difference between the two lies in the raw materials and technical paths. When choosing, it is necessary to balance performance, cost and sustainability. In the future, with the progress of biosynthetic technology, the proportion of bio-based additives is expected to increase significantly, but petroleum-based ones will still be irreplaceable in the short term.