LTW	Laser Transmission Welding
SC	Semi-crystalline
LT	Laser Transmissive
LA	Laser Absorptive
HAZ	Heat-affected Zone
λ	Wavelength
CW	Continuous wave
IoT	Internet of Things
DCD	Dual Clamping Device
CB	Carbon Black
OAN	Oil absorption number
BET	Brunauer, Emmett and Teller
CF	Carbon Fibre
CFRP	Carbon Fibre Reinforced Thermoplastics
CNTs	Carbon Nanotubes
MWCNTs	Multi-Walled CNTs
SWCNTs	Single-Walled CNTs
CNFs	Carbon Nanofibres
BN	Boron Nitride
Tg	Glass transition temperature
Tc	Crystallisation temperature
Tm	Melt temperature
iPP	Isotactic Polypropylene
PPCP	PP random copolymer (often copolymerised with ethylene)
PP-g-MA	Maleic Anhydride grafted PP
PPS	Polyphenylene sulfide
ABS	Acrylonitrile/butadiene/styrene
HDPE	High-density polyethylene
PMMA	Poly(methyl methacrylate)
PS	Polystyrene
PBT	Poly(butylene terephthalate)
PC	Polycarbonate
PEEK	Poly-ether-ether-ketone
PET	Polyethylene terephthalate
FEM	Finite element method
PA66GF	Glass reinforced polyamide
NR	Natural Rubber
HDPE	High-density polyethylene
LDPE	Low density polyethylene
PLLA/PLA	Poly(lactic acid)
DTG	Derivative plot of TGA
MFI	Melt flow index
DSC	Differential scanning calorimetry
TMDSC	Temperature-modulated differential scanning calorimetry
TGA	Thermo-gravimetric analysis
XRD	X-ray diffraction
TEM	Transmission electron microscopy
SEM	Scanning electron microscopy
MFTIR	Microscopic Fourier transform infrared spectroscopy