Improving mechanical properties of paper by blending natural wood pulp with polymers

Co-operation between pulp and paper industry and synthetic polymer industry is showing upward Irend. New products has been developed from the raw materials of both industries with functional properties that could not be achieved by using material from only one industry. The evidence of growing co-operation between the paper and synthetic polymer industry can be seen from leading paper making and paper converting firms diversifying their manufacturing activities in to fields of plastics in some cases replacing paper with plastics. Previously paper was made only from wood pulp and hence it did not have much durability. In order to improve the durability and mechanical strength of natural fibres; synthetic polymer pigments and fillers are added. These materials increase mechanical properties such as tear resistance, burst factor, breaking length etc. In this study we observed the improvement in the quality of paper when it is blended with nylon 66 and poly- formaldehyde resin. They have been added in different percentage and sheets were made. The remarkable improvements in the mechanical properties have been investigated.