The report examines recycling technologies of composite materials (particularly for GFRP with Thermosetting resin). The objective is to establish a state of art search concerning following aspects.

• Technologies prevalent in recycling space and at what stage of commercial scale these are.
• Companies and start-ups associated with these recycling technologies.
• Recent commercial developments on this front in terms of new plants being put up across the globe, technologies made available etc.

Further, We understand that the scope shall encompass:

• Technology areas on recycling of composite materials, as the waste composite materials create a negative impact to the local/global environment such as contamination of the soil, air, and groundwater & spread infectious diseases.
• There are primarily four methods, which are utilized for recycling the waste or scrap FRP composites materials. The search should focus on emerging technologies in the domain
• Primary & secondary recycling technologies involve conversion of scrap or waste into separate materials, which can be further processed to form a new composite product with/without virgin raw materials.
• The conventional recycling processes are dependent on the final properties of new composite product which possesses equivalent (primary) or improved (secondary) properties compared to virgin materials.
• Tertiary recycling involves conversion of scrap or waste into fuels or chemical substances, gases and fibres with energy recovery (Fluidised Bed, Pyrolysis and Supercritical recycling techniques).
• Quaternary recycling involves transformation of scrap or waste into energy (i.e. Incineration).

Taxonomy

Patent Focus

• Method/Process of manufacturing
• Treatment Method/Process
• Product
• Composition/Composite material
• Technology
• Other Patent focus

Types of FRP composite

• Glass fibre reinforced polymer (GFRP)
• Carbon fibre reinforced polymer (CFRP)         
• Basalt fiber reinforced composites (BFRP)
• Aramid fiber reinforced composites (AFRP)
• Natural Fibre Reinforced Composites (NFRC)
• Polymer Fiber Reinforced Composites(PFRC)
• Ceramic Fiber Reinforced Composites(CFRC)
• Metal Fiber Reinforced Composites(MFRC)

Type of Glass Fiber

• E-Glass
• S-Glass
• C-Glass
• AR-glass            
• Others

Type of Natural Fiber

• Bamboo           
• Sugar cane bagasse    
• Jute     
• Kenaf  
• Flax      
• Grass   
• Sisal     
• Hemp  
• Coir     
• Ramie 
• Abaca 
• Others

Types of Thermoplastic resin

• Polyethylene (PE)        
• Polyvinyl chloride (PVC)
• Polypropylene (PP)     
• ABS      
• Polystyrene     
• High density Poly Ethylene
• Styrene             
• Acrylic
• Others

Types of Thermosetting resin

• Cured epoxy resin
• Phenol resin
• Polyurethane resin
• Melamine resin
• Urea resin
• Unsaturated polyester
• Others

Types of recycling

• Chemical
• Mechanical
• Thermal
• Other

Chemicals used in Chemical Recycling

• Acid
  • Nitric acid
  • Sulphuric acid
  • Acetic acid
  • Others
• Base
  • KOH
  • NaOH
  • Ca(OH)2
  • Others
• Solvents
  • Water
  • Alcohol
  • Ammonia
  • Ethers
  • Others
• Decomposing agent
• Catalyst            
• Treatment agent         
• Others
• Molar concentration of Solution used (M)

Types of the chemical recycling

• Low temperature solvolysis
• Sub–supercritical solvolysis
• Other

Recycling Conditions

• Time    
• Temperature
• Pressure           
• Others

Thermal Recycling

• Pyrolysis processes     
• Fluidized bed pyrolysis processes
• Microwave pyrolysis processes           
• Incineration    
• Co-Incineration            
• Others

Mechanical Recycling

• Grinding           
• Crushing
• High Voltage
• Fragmentation             
• Shredding        
• Milling
• Comminution 
• Other

Products obtained from recycling

• Powdered fillers
• Fibrous products
• Others

Use of Processed recycled material

• Concrete          
• Vehicles           
• Wind turbines
• Sports goods
• Fillers  
• Airplanes
• Others

Use of Processed recycled material

• Economical sustainability       
• Low consumption of energy  
• Fibre waste recovery  
• Recycling efficiency    
• End use reliability       
• Environment friendly 
• Other Benefits

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