In the manufacturing and processing of polymer materials (such as engineering plastics, special films, and biodegradable materials), trace amounts of moisture are often the "invisible killer" of quality. It not only leads to the appearance of bubbles, silver streaks and cracks in the product, but also causes the hydrolysis and degradation of molecular chains, seriously damaging the mechanical strength and electrical performance of the material. How to remove moisture efficiently, gently and thoroughly? The vacuum dryer offers a proven perfect solution.
Why must polymer materials undergo vacuum drying?
The vast majority of polymer materials, especially engineering plastics (such as PC, PET, PBT, PA66, etc.), are hygroscopic. Traditional hot air drying, due to its high temperature, low efficiency and difficulty in penetrating deep into the interior of materials, can no longer meet the requirements of high-end manufacturing. The advantages of vacuum drying technology lie in:
Ultra-low humidity drying: The vacuum environment significantly lowers the boiling point of water, enabling the moisture inside and on the surface of materials to rapidly evaporate and be removed at low temperatures, achieving deep dehumidification.
Prevent thermal oxidation degradation: Drying is carried out in an oxygen-free or low-oxygen vacuum environment, completely avoiding yellowing, embrittlement and molecular chain breakage caused by the contact of materials with oxygen at high temperatures.
Enhance product quality: Effectively eliminate problems such as bubbles, silver streases, and poor surface finish on processed parts caused by moisture vaporization, ensuring stable dimensions, perfect appearance, and mechanical properties that meet standards of the products.
Ii. How does our vacuum dryer empower polymer materials?
We have specially designed high-performance vacuum drying solutions for the characteristics of polymer materials. The core value lies in:
1. Precise temperature control system
The intelligent PID temperature control module is adopted to ensure uniform and stable temperature inside the drying chamber, with the temperature difference controlled within ±1.5℃, avoiding damage to heat-sensitive materials (such as PLA, PGA and other bioplastics) caused by local overheating.
2. Highly efficient and rapid dehumidification capacity
Equipped with a high-speed vacuum pump set, it can quickly establish and maintain a high vacuum degree, rapidly discharge the wet vapor, significantly shorten the drying cycle, and enhance your production efficiency.
3. Excellent materials and design
All parts in contact with materials are made of 304 or 316L stainless steel, with mirror-polished inner walls and no dead corners. This design not only resists corrosion but also prevents material contamination, fully complying with high-standard industry norms such as GMP.
4. Flexible customization options
We are well aware that the drying processes for different materials vary greatly. Whether you need nitrogen reverse charging function, multi-stage programmed temperature rise, or special material rack/tray design, we can tailor it to your needs to ensure that the equipment perfectly fits your process.