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The right ESBO dose is really two doses. Run epoxidized soybean oil (ESBO) at 1 to 4 phr and it works mostly as a co-stabilizer, propping up your Ca/Zn system. Push it toward and past 5 phr and it starts…
One additive in a flexible PVC recipe both softens the compound and neutralizes the hydrogen chloride that degrades it during hot processing. Epoxidized soybean oil — ESBO on most spec sheets — does this at just 1-5 phr, working beside…
Bio-based plasticizers differ from traditional plasticizers in where their carbon comes from — vegetable oils, fatty acids and citric acid instead of petrochemical anhydrides and alcohols — not in any built-in advantage in efficiency, migration, heat resistance or safety. In…
Natural plasticizers are eco-friendly additives made from renewable sources like plants, vegetables, and agricultural byproducts that make plastics more flexible and workable. Traditional plasticizers often come from petroleum and can be harmful to both people and the environment. Natural alternatives…