How does PU foam scrap affect the quality of rebonded foam?

scrap foam

Rebonded foam is made of refoaming PU foam scrap. As a raw material, PU foam scrap can affect the final product quality of rebonded foam. Here are some of the effects of PU foam scrap on rebonded foam quality as follows.

1.Density. The density of rebonded foam is directly affected by the density of the PU foam scrap. Higher density PU foam scrap can be made into higher density rebonded foam. And higher density rebonded foam will be more durable and resilient than lower density rebonded foam.

2.Compression permanent deformation. Compression permanent deformation of rebonded foam is influenced by the compressive force applied during the bonding process and the compressive properties of the PU foam scrap. The higher the compression performance of the PU foam scrap, The greater the compression deformation of the rebonded foam.

3.Pore Structure. The pore structure of rebonded foam is influenced by the uniformity and size of the pores in the PU foam scrap. High quality PU foam scrap with a consistent pore structure can produce rebonded foam with a more regular and uniform pore structure..

4.Tensile strength. The tensile strength of rebonded foam is affected by the quality of the adhesive. A high quality adhesive with good bonding properties will produce better tensile strength to the rebonded foam.

5.Elasticity. The resiliency of the rebonded foam is influenced by the resiliency of the PU foam scrap. PU foam scrap with good elasticity will therefore produce good rebonded foam.

6.Moisture content. The moisture content of the PU foam scrap and adhesive can affect the bond strength as well as the overall quality of the rebonded foam. Excess moisture will cause the bond strength of the rebond foam to decrease.

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Sally Zhang

CEO of Foshan Alforu Technology Co.,Ltd