Recycled PET often suffers from chain scission during mechanical recycling and repeated melt processing, which lowers molecular weight, reduces intrinsic viscosity, and weakens melt strength and processability. That is why chain extenders are widely discussed in rPET modification. Read More

IntroductionEVA is widely used in cable insulation and sheathing because of its flexibility, good electrical performance, and processing adaptability. However, in humid, hot, or long-term service environments, EVA cable compounds may still face degradation risks that affect durability and overall pe Read More

IntroductionTPU is widely used in hoses, cables, films, footwear, seals, and molded parts because of its flexibility, abrasion resistance, and processing versatility. However, in hot, humid, or water-exposed environments, some TPU grades may gradually lose mechanical strength, surface quality, and l Read More

Recycled PET is becoming more important in the packaging industry as brands look for ways to reduce virgin plastic use and improve sustainability. However, when food-contact applications are involved, the main issue is not only whether rPET is recyclable, but whether it is safe, complian Read More

What is the real difference between low-value recycled PET and premium rPET sheet or film that can run smoothly, form cleanly, and deliver consistent quality? In many plants, the answer is not only raw material sourcing. It is what happens to molecular structure, melt behavior, and process stability Read More

High-strength PET compounds are not built by reinforcement alone. Many PET formulations look promising on paper, yet after drying, melt compounding, pelletizing, and molding, they lose stiffness, become brittle, or process less consistently than expected. The real bottleneck is often not the filler Read More

You deal with three main kinds of hydrolysis in polymers and plastics: acid, alkaline, and enzymatic. Hydrolysis breaks down these materials. This can make them last less time and work worse. Research shows that biodegradable plastics can lose strength fast or slow in the ocean. Read More

The most expensive yarn break is not always the one that stops the line. It is the one that reveals a deeper problem in the polymer itself: lower intrinsic viscosity, shorter molecular chains, weaker melt strength, and unstable spinnability. In PET filament and yarn production, those problems often Read More