Fiber-reinforced Composite Material Containing Photodegraded Polyolefin as Bonding Agent

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention introduces a fiber-reinforced composite material where the crucial bonding agent between the fibers and the thermoplastic matrix is a photodegraded polyolefin—essentially, waste plastics like polyethylene films that have been degraded by sunlight. By reusing these photodegraded plastics as compatibilizers, the composite efficiently bonds natural or synthetic fibers with the polymer matrix, resulting in materials with improved mechanical properties and offering a sustainable recycling pathway for plastic waste.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacture of wood-plastic composites (WPC) for outdoor decking, fencing, and similar construction materials
• Production of automotive interior parts such as dashboards and door panels
• Creation of sheets or planks for building and furniture industries
• Formulation of eco-friendly 3D printing filaments
• Development of composite pellets or powders for further industrial processing

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces environmental impact by recycling photodegraded plastic waste (e.g., agricultural mulch films) as a resource
• Provides a cost-effective alternative to expensive petrochemical bonding agents like maleic anhydride-grafted polyolefins
• Improves interfacial bonding between natural fibers and non-polar thermoplastic matrices, resulting in superior mechanical properties such as increased tensile and flexural strength
• Enables the production of high-value composite materials from low-value waste streams
• Supports circular economy models in manufacturing and plastic waste management

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Patent Abstract

The invention relates to a fiber-reinforced composite material comprising reinforcing fibers embedded in a thermoplastic matrix, wherein the composite material comprises a bonding agent for bonding the reinforcing fibers to the thermoplastic matrix, the bonding agent being or comprising a photodegraded polyolefin.