Chain extenders

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Chain extender 4300,mid expoxy functionality for branching control and compatibilization, upgrade recycled plastics with better properties which is close or equal to new plastics.
Chain extender 4300 is an efficient additive to upgrade recycled plastics with better properties which is close or equal to new plastics;it’s a polymeric chain extender with high epoxy functionality for condensation thermoplastics to increase the molecular weight,melting strength of resins which can improve the precessing and mechanical properties of different plastics.M.W.:5500~6000;Epoxy equivalent weight(g/mol):430~460;Tg(℃)：56
Product Name: Chain extender 4300
Synonyms:
Chain extender 4300S
Specifications:
AppearanceCrystalline flakes or powder
Molecular weight5500~6000
Tg(℃)~56
epoxy equivalent weight(g/mol)430~460
Non-volatile(%)>99%
Applications:
1.Chain extender 4300 a polymeric chain extender with high epoxy functionality.it canreact with the terminal hydroxyl group,terminal carboxyl group and terminal amino group of PLA、PPC、PBS、PHA、PBT、PET、PA、PC and biodegradable polyesters plastics at the normal operation temperature.re-coupling of the broken chains by heating or hydrolyzation can be reformed by this kind of reaction.this results in higher molecular weight and melting strength of the products which make the resins with better processing and mechanical properties.
2.Chain extender 4300 is a versatile chain extender/compatibilizer with high epoxy functionality.this allows for rapid reaction with condensation thermoplastics,resulting in higher molecular weight;
3.Chain extender 4300 is a polymeric coupling agent that reacts with degraded polymers to restore the original molecular weight as well as Intrinsic viscosity and melt viscosity;
4.Recycled plastics can be upgraded to be with good quality by chain extender 4300;
5.Chain extender 4300 can be used during processing to increase the melt strength of polyesters or polyamide(nylon).this is useful in extrusion applications;
6.Chain extender 4300 is not approved for food contact in PET
Recommended Dosage:
●PLA、PPC、PBS、PHA and biodegradable polyesters:0.2%~1.5%.
●Recycled Condensation polymers such as PET、PBT、PC、PA: 0.2%~2.0%
●exact dosage depends on the active group in the resin and the characteristic request of the finished goods.please contact us for detailed guideline
Package:
25kgs/bag or according to customer's request
Storage:
Stock chain extender 4300 in dry,cool well-ventilated shady place andand away from fire source
Transportation:
Chain Extender 4300 is not a dangerous goods according to transportation regulation
Shelf life:
2 years in sealed original package.
Lead time: promptChain extenders
website:http://www.scienoc-chem.com/polymer-additives/chain-extender/