The selection of basic materials: the wisdom of PVC and PET
The core of transparent tarpaulin lies in the selection of its basic materials. Polyvinyl chloride (PVC) has become a traditional and popular choice for making transparent tarpaulins due to its good processing performance, weather resistance and relatively low cost. PVC materials can form a dense waterproof layer through special processing to effectively block rainwater penetration. At the same time, the flexibility of PVC materials enables it to adapt to the construction needs of various complex structures.
Polyester (PET) is a high-performance transparent UV-resistant waterproof clear tarpaulin material that has gradually emerged in recent years. Compared with PVC, PET has higher strength and wear resistance, as well as better environmental protection performance. Tarpaulins made of PET materials not only have good light transmittance, but also can maintain bright colors for a long time and are not easy to age. In addition, PET materials are easy to recycle and reuse, which is in line with the current trend of sustainable development.
The secret of anti-ultraviolet agents: the harmonious coexistence of science and nature
Although PVC and PET themselves have certain light transmittance, long-term ultraviolet radiation in outdoor environments will cause the materials to age and fade, and even affect the service life of the tarpaulin. Therefore, adding UV inhibitors becomes a key step to improve the performance of transparent tarpaulins.
UV inhibitors, as a special chemical additive, can be closely combined with tarpaulin materials at the molecular level. Their mechanism of action is mainly divided into two categories: one is an absorptive UV inhibitor, which can absorb UV energy and convert it into harmless heat energy release; the other is a reflective UV inhibitor, which reflects UV rays back by changing the optical properties of the material surface, thereby reducing its direct damage to the material. These two types of UV inhibitors are often used in combination to achieve the best protection effect.
During the addition process, it is crucial to accurately control the amount of UV inhibitor. Too much addition may cause the tarpaulin to have a decreased light transmittance and affect the internal lighting; too little addition will not provide sufficient protection. Therefore, manufacturers need to determine the optimal UV inhibitor addition ratio through scientific experiments based on the specific application scenarios, material types and expected service life of the tarpaulin.
Technological innovation: Continuous pursuit of better performance
With the advancement of science and technology, the production technology of transparent tarpaulins is also constantly innovating. For example, the application of nanotechnology enables UV inhibitors to be more evenly dispersed in the material, thereby improving protection efficiency; multi-layer co-extrusion technology allows the superposition of different functional layers in the same layer of tarpaulin, such as a waterproof layer, an anti-UV layer, a reinforcement layer, etc., thereby further improving the comprehensive performance of the tarpaulin without sacrificing light transmittance.