PP plastic, as the second largest general-purpose plastic, has a wide range of applications, and is now widely used in fields such as woven bags, packaging bags, and tying ropes. In recent years, with the continuous development of PP injection molding products and packaging films, the proportion of polypropylene used for weaving products has decreased. PP injection molding products have become the second largest consumer field of polypropylene, and the fluorescent whitening agent used for PP injection molding, as a non-toxic and environmentally friendly optical whitening agent, has gradually become well-known by injection molding manufacturers.
Due to the widespread use of polypropylene plastics, waste PP has become one of the most abundant waste polymer materials in recent years. At present, the main ways to treat waste PP include incineration for energy supply, catalytic cracking for fuel preparation, direct utilization, and resource reuse. Considering factors such as technical feasibility, cost, energy consumption, and environmental protection in the process of treating waste PP, PP recycling and reuse is currently the most commonly used, effective, and least advocated approach to treating waste PP.
Due to the influence of light, heat, oxygen, external force and other factors during the use of PP, the molecular structure of PP has changed, and the PP products have become yellow and brittle, resulting in the obvious deterioration of the toughness, stability and processability of PP. It is difficult to meet the user’s requirements for injection products made directly from old PP. Therefore, it is necessary to add additives to improve the performance of recycled PP and achieve high-performance waste PP. Fluorescent brightener used for PP injection molding can increase the whiteness and brightness of the product, improve the yellowing of recycled PP, and reduce weather resistance. It is an indispensable additive for PP injection molding manufacturers.
Fluorescent whitening agent for PP injection molding is a whitening agent developed by Lianda Fluorescent Technology for PP material. The appearance is chartreuse powder, with high whiteness, high temperature resistance, good weather resistance, and strong migration resistance. It is not only suitable for PP injection molding, but also for PP material drawing, granulation and other processes. Make PP products white and shiny, and recycled PP is as white and shiny as new materials.
Post time: Jun-02-2023