The necessity of developing a renewable pressure sensitive adhesive

The traditional polymer material industry with petroleum resources as raw materials has brought great convenience to human production and life, but the problems brought by plastic pollution and excessive consumption of resources have become more and more bottleneck hindering its development. The discovery and use of natural compounds as polymeric monomers is helpful to get rid of the excessive dependence on petroleum resources, which has become a research hotspot in the field of polymer materials synthesis.

The traditional acrylic pressure sensitive adhesive is prepared from acrylic monomer based on the petrochemical industry, which will inevitably accelerate the accelerated consumption of petroleum resources, which are non-renewable or difficult to renewable resources, excessive exploitation will lead to the depletion of earth resources. In recent years, the focus of research has been turned to acrylic monomer raw materials based on biorenewable sources and gradually industrialized.

The production of bio-based acrylate monomers is generally based on the catalytic esterification reaction of alcohols extracted from plants and acrylates based on the petrochemical industry. The sources of bio-based alcohols are usually natural products such as vegetable oil and bornol. These materials are abundant and reproducible, which is in line with the sustainable development strategy. Therefore, it is necessary to develop a renewable pressure sensitive adhesive and its preparation method.

The technical solution adopted here is to provide a renewable pressure sensitive adhesive: The acrylate copolymer comprises an acrylic monomer with a high biobase content of 60 to 87wt %, a non-polar monomer with a high biobase content of 10 to 30wt %, a polar cross-linked monomer with a value of 3 to 10wt %, The sum of the high biobase content acrylate monomer, the high biobase content non-polar monomer and the polar crosslinked monomer is 100wt %.