Highlights of Chinaplas 2026 "Plastic" Delivered! Lg Chem's Ultra-High Polymerization PVC Makes a Comeback

HRTP stands for "Heat-resistant and Recyclable Thermal Plastic," and the numbers such as "4000" represent the polymerization degree index. The polymerization degree of common PVC is around 1000. A higher polymerization degree index means the polymer has a higher molecular weight, resulting in better physical and mechanical properties, but it also leads to reduced processability.

For this, LG Chem has launched the ultra-high polymerization degree PVC HRTP series, which not only boasts world-leading ultra-high molecular weight and excellent plasticizer absorption capacity but is also easy to recycle and reuse. With its high flexibility, high flame retardancy, and excellent mechanical and processing properties, it is suitable for a wide range of applications, including electric vehicle charging cables, high-temperature resistant wire harnesses, environmentally friendly and wear-resistant flooring, impact-resistant pipes, and automotive interior fabrics.

The charging cable, which adopts the super highPVC HRTP4000 material, has a flexibility that is about 30% higher than that of existing materials, greatly enhancing the product's flexibility and convenience. Therefore, the HRTP series is an ideal material for flexible cables suitable for various charging interfaces. (Note: "" is directly translated as "degree of polymerization" in English, but it seems to be part of the material name "PVC HRTP4000" in this context, so it's kept as is.) Corrected version for better fluency: The charging cable, which uses the super high polymerization PVC HRTP4000 material, has a flexibility that is about 30% higher than that of existing materials, greatly enhancing the product's flexibility and convenience. Therefore, the HRTP series is an ideal material for flexible cables suitable for various charging interfaces.

High Flame Retardancy

In the direct burning performance test of HRTP4000, the flame immediately goes out once the ignition source is removed. Additionally, its limiting oxygen index reaches 26, which is higher than that of existing charging cable materials TPE and TPU. Therefore, HRTP4000 has excellent flame retardant properties, effectively preventing the spread of fire and avoiding fire accidents.

03 High Temperature Stability & Wear Resistance

This material exhibits excellent heat resistance, with a UL temperature index of 125°C. Moreover, incorporating 30% ultra-high molecular weight PVC increases wear resistance by approximately 40% compared to conventional LVT flooring, thereby significantly extending the floor’s service life.

04 Environmental Friendliness

Most PVC products are currently disposed of through landfill or incineration. Products made from HRTP series materials can be recycled and reused. After multiple processes such as sorting, separation, crushing, and cleaning, they are processed into granular recycled PVC material through a composite process. Using LG Chem's recycled PVC material enables lightweight product design while reducing carbon emissions by approximately 40%.