Application of
Hydrolysis Stabilizer in PLA & PBAT
Discover how HyMax® hydrolysis stabilizers protect PLA, PBAT, and other biodegradable polyester materials from moisture-induced degradation — extending product lifespan across demanding applications.
PLA & PBAT: Biodegradable Plastics
Both PLA and PBAT are widely used biodegradable plastics. PLA is formed by the self-condensation of polylactic acid, and PBAT is formed by the ternary copolymerization of terephthalic acid, adipic acid, and 1,4-butanediol.
The raw materials of PLA and PBAT can be obtained from natural starch, which has good biocompatibility. PLA and PBAT can be completely degraded by microorganisms to generate carbon dioxide and water without polluting the environment.
PLA has good tensile strength and ductility, can be produced by various common processing methods. PLA film has good air permeability, oxygen permeability and carbon dioxide permeability, and also has the characteristics of odor isolation.
PBAT combines the characteristics of PBA and PBT — not only has good ductility, elongation at break, heat resistance, and impact resistance but also has excellent biodegradability. The main markets of PBAT are plastic packaging films, agricultural films, disposable plastic bags and disposable plastic tableware.
Both PLA and PBAT contain ester groups. They are prone to hydrolysis in a humid and hot environment, which affects their mechanical properties and service life.
HyMax® 1010 in PLA & PBAT Applications
HyMax® 1010 can make the carboxyl groups of PLA and PBAT form end caps, and the carboxyl groups are the main cause of hydrolysis.
HyMax® 1010 can increase the hydrolytic stability of polylactic acid (PLA) by 2 to 3 times. Depending on the added amount and test conditions, the service life of PLA and PBAT can be increased by 3 to 7 times.
HyMax® 1010 can extend the chain during the processing of PLA or PBAT. The polymer short chain and long chain recombine together, but it does not cause the problem of broadening the molar mass distribution (polydispersity) caused by traditional chain extenders.
In this way, HyMax® 1010 improves the molar mass of PLA or PBAT and keeps the product's mechanical properties in an appropriate range.
- End-caps carboxyl groups to prevent hydrolysis
- Significantly improves tensile strength retention
- Extends service life under high temperature & humidity
- Effective for packaging films, agricultural films & disposables
Where PLA & PBAT Hydrolysis Stabilizers Make a Difference
Packaging Films
Flexible packaging
Agricultural Films
Mulch & greenhouse
Disposable Bags
Shopping & carrier bags
Disposable Tableware
Plates & utensils
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