Table 1.

Comparison of advantages and disadvantages of different synthetic polymers in BTE

Composite	Advantage	Disadvantage	References
Poly(lactic acid) (PLA)	Materials with good mechanical pr-operties,good biocompatibility and biodegradability, low cost, toughness and elasticity	The heat resistance is general, and it starts to deform at a temperature above 60 °C, and it is not resistant to water or chemical corrosion	[23, 24]
Polyhydroxyalkanoate (PHB)	Good Biodegradability, biocompatibility,optical activity	Poor thermal stability, narrow processing window	[25]
Poly(vinyl alcohol) (PVA)	Good water solubility	If overheated, toxic vapor will be released; expensive	[26, 27]
Polycaprolactone (PCL)	Excellent mechanical strength and proper biodegradability, certain rigidity and strength	Insufficient strength of mechanical properties	[28]
Polyacrylamide (PAM)	It has good thermal stability, good water solubility and high chemical activity, small dosage and no odor and corrosivity when used	When the temperature is low, the dissolution time is long, and the dosage is too high, which will cause the water to be viscous	[29]