Polymer hydrogel is a kind of polymer material which has wide application prospect in medicine

pharmacy

cartilage tissue engineering

artificial muscle

bionic brake and adsorbent. However

its applications are limited largely because of its low mechanical strength. In recent years

polymer reinforced hydrogels have attracted extensive attention from many scientists at home and abroad. It has been proven that the reinforced polymer hydrogels have the characteristics of anti-swelling

strong toughness and ultra-high mechanical strength

which possess significant application value. This paper introduces the concept of polymer hydrogel and its reinforcing mechanisms. And the strategies of preparation of polymer reinforced hydrogels are summarized in detail

including the preparation of hydrogels by immersion in electrolyte solutions

nanocomposites hydrogels and multinetwork hydrogels. Finally

based on some problems existing in current polymer hydrogel (such as some hydrogels have poor biocompatibility

cannot be degraded in human body and poor conductivity)

the future development of polymer reinforced hydrogels and their application in natural materials

biology and environmental remediation are prospected.