EXL‑2314 is a cross‑linked acrylic core‑shell impact modifier featuring a flexible polybutyl acrylate rubber core and rigid PMMA outer shell. The core‑shell microstructure delivers efficient energy‑absorbing capacity during material fracture. It is specially developed for modification of multiple engineering resins including epoxy, PBT, PET, PA and PLA. The modifier shows good dispersion within polymer matrix without severely deteriorating heat‑resistance or modulus of finished plastic parts. It

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Chemical IdentityEXL‑2314 belongs to cross‑linked acrylic core‑shell rubber toughening agent. The inner rubber phase is crosslinked polybutyl acrylate (PBA), and the outer hard shell consists of polymethyl methacrylate (PMMA). The core‑shell particle structure is formed via emulsion polymerization. The PMMA shell provides favorable interfacial compatibility with polar engineering plastics and epoxy resin systems, which prevents agglomeration during high‑temperature compounding. No extra surface treatment is required under normal processing conditions.

Key PerformanceThe flexible rubber core absorbs fracture energy effectively when the finished component suffers external impact, so as to stop crack propagation inside polymer matrix. Compared with conventional rubber toughening agents, EXL‑2314 maintains relatively higher stiffness and thermal‑deformation temperature of modified compounds. It exhibits acceptable thermal stability during twin‑screw extrusion and injection processing for PBT, PET, PA and PLA. It also shows stable performance in epoxy curing systems, resisting phase‑separation issues. The particle size is well‑controlled to guarantee homogeneous dispersion in compounding production.

ApplicationsEXL‑2314 is suitable for toughening modification of PBT, PET, PA6, PA66 and PLA engineering plastics. It is widely used in injection‑molded technical components for electronics and automotive parts. Besides thermoplastic compounding, this core‑shell toughener can be incorporated into epoxy formulations for cast parts and composite prepreg systems. It is applicable for halogen‑free compound development when formulating high‑impact technical plastic grades. Typical end‑products include electrical housing, structural plastic brackets and composite molded components.

Storage & HandlingStore EXL‑2314 in a dry, cool and well‑ventilated warehouse environment. Avoid direct sunlight exposure and excessive humidity to prevent particle caking. Sealing of original packaging should remain intact before consumption. Recommended storage temperature ranges between 10‑30℃. Prevent static accumulation during material feeding and mixing operations. Keep away from heat sources and open flames.

Why Choose SupplierWe supply EXL‑2314 alternative core‑shell acrylic toughener with stable particle‑size consistency for engineering‑plastic compounders. We support bulk and small‑batch order, provide TDS and MSDS documents for overseas customers. Our material can be adopted in epoxy as well as bio‑based PLA toughening projects for international markets.

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Acrylic Core-Shell Toughener EXL-2314, Crosslinked PBA Core PMMA Shell for Epoxy PBT PET PA PLA Engineering Plastic

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.