6.7. Other Additives From Renewable Resources
See also subchapter 4.3.2 formulation of PLA.
In a general way, remind that renewable additives may also include a certain level of synthetic components and that a same line of trade names may include renewable products and synthetic ones.
In addition to plasticizers, the oldest and most common additives based on renewable resources are
• Fatty acids, their salts, esters, and amides used as lubricants, processing aids, PVC heat stabilizers, emulsifier…
• Pine derivatives: pine tar, rosin, terpene used as tackifiers and processing aids.
• Vulcanized vegetable oils or factices used in rubber formulations.
• Phenol derivatives used as antioxidants.
Table 6.57 displays some examples of natural additives, raw, ...
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