New materials, recycled materials, and general materials
In the injection molding industry, plastic is the most commonly used material, which is a synthetic polymer material with high plasticity. The three primary synthetic materials in today’s injection molding industry are plastic, synthetic rubber, and synthetic fibers. In addition, plastic is formed mainly by natural or synthetic resin. Below, we will introduce the differences between new materials, general materials, and recycled material in plastic injection molding parts.
By adding various additives, plastic can be formed into a certain shape under certain temperature and pressure conditions and maintain the same shape also at normal temperature. Theoretically, the molecular weight of the plastic will decrease by 20-30%, which means that various properties will decrease by 20-30%. If plastic products are made of new materials, they will have the best surface luster, color, and toughness. Products made from recycled material will have worse surface luster, color, and toughness.
What are new materials?
New plastic particles that have not been used are called “new materials”. The surface of the new material product also has good gloss, bright color, freshness, and high brightness. In terms of performance, the properties of “new materials” are in line with the physical properties table of plastics. The quality of the products produced from new materials is more stable than that of recycled materials. The toughness, rigidity, and other properties are good, and the product quality is more stable.
What are recycled materials in the injection molding industry?
That is to say, after recycling and processing, the properties of “recycled materials” obtained have varying degrees of degradation, including mechanical properties, molding properties, temperature, corrosion resistance, etc. The main reasons are light aging, oxidation, thermal aging, etc. The degree of degradation depends mainly on the service life and environment. “Recycling” can also be divided into “first-level recycling”, “secondary recycling”, “tertiary recycling”, etc. according to the number of recycling times. The following are some characteristics of recycled materials:
The price of “recycled material” is very low, and products made from recycled materials are unstable. There is no guarantee that products made from each batch of materials can meet uniform standards.
Among the physical properties of “recycled materials,” the mechanical properties of the material are worse than those of new materials.
In addition, products made from “recycled materials” are generally darker in color and have an odor.
What is the general material in the injection molding industry?
Dem neuen Material werden einige recycelte Materialien und leistungssteigernde Additive (Additive, die teurer als neue Materialien sind) zugesetzt, um ein universelles Material zu bilden, das nicht nur die Zähigkeit und Steifigkeit des Produkts verbessern, sondern auch die Kosten senken und gleichzeitig die Qualität gewährleisten kann .
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