Phthalates are a series of compounds, mainly used in the production of flexible polyvinyl chloride (PVC) or vinyl products. Phthalate is one of the most commonly used plasticizers in the world. According to its molecular weight, it can be divided into high phthalate ester and low phthalate ester.
　　Applications and benefits of phthalates
　　Colorless and tasteless high phthalate esters are suitable for a large number of products requiring high performance, long-term wear resistance and durability. High phthalate esters are mainly used to soften or "plasticize" vinyl because of their strong performance, durability and stability. They are tightly integrated into the vinyl structure and are not easily removed from the product or evaporated.
　　Although phthalates can be used in many applications, different types of high phthalates are not necessarily interchangeable. The characteristics of various phthalates often make them particularly suitable for a specific product, enabling manufacturers to meet specific requirements for their use (functional and Safety specifications), appearance (texture, color, size and shape), durability and wear resistance.
　　Housing and architecture
　　From energy-efficient roofing to flexible adhesives and sealants to durable interior finishes, high phthalate esters can be used in a variety of building and construction applications, making many different types of vinyl surfaces more durable and easier to maintain. The main uses of flexible PVC in buildings include: Vinyl roof film, elastic floor, wall materials, sound-absorbing ceiling surface, waterproof film and power cable insulation sheath.
　　Wires and cables
　　High phthalate esters are used as PVC insulation for wires connecting and supporting electronic equipment. For example, high phthalate esters can be used in PVC covering TV and computer wires. Many advantages of using high phthalates include low temperature performance, flexibility, heat resistance and resistivity.
　　automobile
　　Due to its durability, UV linearity and high temperature resistance, vinyl products softened by high phthalate ester are also used in car interiors and seat covers. The PVC coating and parts on the bottom of the car help prevent corrosion from water and weather.
　　Outdoor products
　　Because high phthalate esters help to improve the performance of flexible PVC in changeable weather conditions, that is, to maintain flexibility at low temperature and to resist degradation at high temperature, they can be used in many outdoor products, including swimming pool liners, garden hose, roof film and waterproof shoes (such as rain shoes).
　　textile
　　The high phthalate ester can make the coated textiles for clothing and luggage more durable and weather resistant.