CMC improved the compatibility of CS and Paraffin(L). Eggs coated with CS/CMC/Paraffin(L) solutions had a Haugh unit value of 72 (AA grade) and exhibited a weight loss of 2.4% in 4 weeks. CS blended with low-molecular-weight paraffin (Paraffin(L)) and CMC coating material displayed a tensile strength of 4 MPa, 34% elongation at break, 0.0039 g day −1 m −2 water vapor permeability, and a water contact angle of 89 Hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), beeswax, and paraffin wax were used. The effects of the properties of this egg coating on egg quality were investigated. This reaction increased the mechanical properties, while the annealing process improved the morphology and thermal properties of the blend.Īn egg-coating material was developed to extend the shelf-life and freshness of eggs by blending cassava starch (CS) with gelling agents and waxes. FTIR confirmed the reaction between the −NH2 groups of CTS in PLAEC and the epoxy groups of ENR. Reactions of −COOH/epoxy groups and epoxy/−NH2 groups occurred during PLAE and PLAEC preparation, respectively. The annealing process increased the crystallinity and Vicat softening temperature of the PLAEC1/ENR blend. Thermal properties were observed by DSC and a Vicat softening test. SEM images of the PLAE/ENR blend showed phase inversion from co-continuous to ENR particle dispersion in the PLA matrix with the addition of CTS, whereas the annealing time reduced the hole sizes of the extracted ENR phase due to the shrinkage of PLA by crystallization. The annealing process at 80 ☌ for 0–15 min maintained a tensile strength of approximately 30 MPa. The PLAEC CTS 1% blended with ENR (PLAEC1/ENR) showed a high tensile strength (30 MPa) and elongation at break (7%). PLAEC was melt-blended with an epoxidized natural rubber (ENR) 80/20 wt. Epoxy resin 5% and CTS 1–20% (wt/wt) were incorporated into PLA during melt mixing. Poly(lactic acid) was melt-blended with epoxy resin without hardener and chitosan (CTS) to prepare modified PLA (PLAEC).
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