1. Different in nature
1. Polyester properties: the general term for polymers derived from polyhydric alcohols and polybasic acids.
2. Resin properties: It has a softening or melting range after being heated. It has a tendency to flow under external force when it is softened. It is a solid, semi-solid, or liquid organic polymer at room temperature.
Two, the characteristics are different
1. Polyester characteristics: Polyethylene terephthalate (PET) is produced by polycondensation of terephthalic acid (PTA) and ethylene glycol (EG), and part of the PET is finally produced through underwater pelletizing. Fiber-grade polyester chips are used to produce polyester staple fibers and polyester filaments, and are raw materials for polyester fiber companies to process fibers and related products.
2. Resin characteristics: The relative molecular weight is uncertain but usually high. It is a solid, medium solid, pseudo-solid, and sometimes liquid organic substance at room temperature. It has a softening or melting temperature range, has a tendency to flow under the action of external force, and is often shell-shaped when broken.
