Qinghai Plastic Mobile Toilet

The Qinghai plastic mobile toilet uses polyethylene-based composite materials, with the addition of a nano-titanium dioxide layer to enhance its resistance to ultraviolet rays and low temperatures, extending its anti-aging lifespan by approximately 2.3 times compared to traditional materials.

In Qinghai, the high altitude results in intense ultraviolet radiation, with an annual radiation level of 6000-8000 megajoules per square meter. Conventional plastic components are prone to embrittlement and cracking within two years. In response to this environmental challenge, locally developed mobile toilets use polyethylene-based composite materials as their core material, achieving performance breakthroughs through technological adaptation.

1. Optimization of UV Resistance
Traditional plastics are prone to photodegradation under strong UV exposure, leading to molecular chain breakage and surface embrittlement. The new solution incorporates a nano-titanium dioxide layer into the polyethylene base material, utilizing its photocatalytic properties to block the penetration of UV wavelengths (290-400 nanometers). As an inorganic UV absorber, nano-titanium dioxide reflects or scatters UV rays while converting some of the light energy into heat for release, thereby reducing energy accumulation within the material. Measured data shows that the anti-aging lifespan of this material in the Golmud area (where UV radiation intensity is close to the average) is approximately 2.3 times longer than that of traditional materials, significantly extending the service life of components.

2. Maintenance of Low-Temperature Flexibility
In winter, temperatures in Qinghai often drop below minus 30 degrees Celsius. Ordinary plastics become brittle at low temperatures due to reduced molecular motion, making them prone to fracture. The polyethylene-based composite material reduces its glass transition temperature while maintaining strength by adjusting the molecular chain structure (e.g., increasing the proportion of linear low-density polyethylene) and adding plasticizers. The presence of the nano-titanium dioxide layer further inhibits stress concentration within the material at low temperatures, ensuring that components remain flexible in extreme cold environments and avoiding cracking caused by thermal expansion and contraction.

3. Environmental Adaptability Verification
Field tests in Golmud show that plastic components (such as shells and door panels) of mobile toilets using this material exhibit no significant embrittlement or deformation after five years of continuous use, whereas traditional material components show severe aging within two years. This improvement not only reduces maintenance costs but also minimizes resource waste caused by component damage, meeting the stringent durability requirements for equipment in high-altitude regions.