THERMOPLASTIC POLYURETHANE ELASTOMER (TPU)

Thermoplastic Polyurethane Elastomer (TPU) is a block copolymer synthesized by the reaction of diisocyanates, polyether or polyester polyols and small‑molecule diol chain extenders. TPU inherently delivers outstanding wear resistance, mechanical strength and chemical resistance. Sophisticated formula design and modification technologies can further enhance or endow it with targeted properties to meet diverse requirements ranging from daily consumer goods to cutting‑edge industrial fields. The following elaborates on the core characteristics and corresponding main applications of various TPU modifications listed below.

Reinforced Flame‑Retardant Modification

Reinforced flame‑retardant modification combines reinforcement modification with flame‑retardant modification to produce TPU materials featuring high strength, high rigidity and excellent flame‑retardant performance. A delicate balance between reinforcing fillers and flame‑retardant systems is required to guarantee outstanding mechanical properties while passing stringent fire‑safety tests. Materials with such comprehensive performance are suitable for applications with strict demands for both mechanical properties and fire safety, such as high‑end electronic device housings, aerospace interior parts, and industrial components requiring both structural support and flame‑retardant functions.

Toughening Modification

TPU itself serves as an excellent toughening agent. Toughening modification on TPU itself aims to further improve its flexibility and impact resistance, especially low‑temperature toughness. High‑toughness TPU is mainly applied in fields demanding extreme elasticity and durability, such as self‑healing materials, high‑performance elastomers, and components subjected to repeated dynamic stress.

Corrosion‑Resistant Modification

Corrosion‑resistant modification improves TPU’s resistance to various chemical media, especially acids, alkalis, solvents and oils. Polyether‑based TPU generally exhibits better hydrolysis resistance than polyester‑based TPU. Modification for specific chemical environments can be realized via molecular design or addition of functional fillers. Corrosion‑resistant modified TPU is widely used for seals and linings of chemical equipment, hoses for oilfields and mines, oil‑resistant cables, and industrial components exposed long‑term to fuel, solvents or corrosive chemicals.

High Impact Resistance

High impact resistance is one of TPU’s intrinsic properties. Its micro‑phase‑separated structure effectively absorbs and dissipates impact energy. Its impact performance stands out particularly at low temperatures, making it an ideal material for various safety‑protection parts. High‑impact modification further boosts energy‑absorbing capacity by optimizing molecular‑chain structures (e.g. introducing multiple hydrogen‑bond networks) or compounding with other materials (e.g. acting as a toughening modifier for ABS). Such materials are widely adopted in safety helmets, sports protective gear, automotive bumpers, explosion‑proof materials and various protective articles against accidental impact.

Food‑Grade Modification

Food‑grade modification refers to a series of comprehensive modifications centered on hygienic safety upon food contact. It requires TPU base resins and all additives to comply with FDA, EU and other relevant regulations; all additives must be non‑toxic, odor‑free and non‑migratory. Modified materials feature high chemical inertness. They will not leach harmful substances into food or affect food sensory quality, and possess good hydrolysis resistance as well as resistance to repeated cleaning and disinfection. Main applications include conveyor belts, seals and scrapers for food processing and packaging machinery, water‑path components and sealing rings inside water dispensers and coffee machines, as well as reusable baby‑care products and kitchen utensils.

Features: Other Modifications  

Physical Properties: Multiple modification types are available; click this category for unlisted properties Minimum order quantity: 1 ton upon successful sample testing

Participation Process

For modification factories wishing to join the supply, please contact supply‑side customer service.

Users may click group‑order procurement or contact procurement customer service to submit procurement requirements. The platform aggregates similar demands, then screens from its platform database or releases a tender. High‑quality modified raw materials are selected according to users’ procurement requirements. After successful sample testing, users confirm the advantageous modified raw materials and suppliers, and sign purchase‑sales contracts.