{"id":55330,"date":"2025-03-01T03:17:49","date_gmt":"2025-02-28T19:17:49","guid":{"rendered":"http:\/\/www.newtopchem.com\/archives\/55330"},"modified":"2025-03-01T03:17:49","modified_gmt":"2025-02-28T19:17:49","slug":"polyurethane-sponge-softener-provides-excellent-protection-for-high-speed-train-components-a-choice-of-both-speed-and-safety","status":"publish","type":"post","link":"http:\/\/www.newtopchem.com\/archives\/55330","title":{"rendered":"Polyurethane sponge softener provides excellent protection for high-speed train components: a choice of both speed and safety","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
In modern high-speed railway systems, the operating speed and safety performance of trains are two core elements. With the continuous advancement of technology, the design of high-speed trains is becoming more and more complex, and the requirements for materials are becoming higher and higher. As a high-performance material, polyurethane sponge softener plays a crucial role in the protection of high-speed train components due to its unique physical and chemical properties. This article will discuss in detail the application of polyurethane sponge softener in high-speed trains, analyze its product parameters, and display its performance advantages through tables. <\/p>\n
Polyurethane sponge softener is a polymer material, mainly composed of polyurethane resin, foaming agent, catalyst and stabilizer. Its unique molecular structure makes it have excellent elasticity, wear resistance and impact resistance, and is widely used in automobiles, furniture, construction and rail transit fields. <\/p>\n
Polyurethane sponge softener has the following characteristics:<\/a><\/p>\n
When the high-speed train is running, the components will be affected by various external forces, such as vibration, impact, friction, etc. These external forces will cause wear and damage to the components, affecting the operation safety and service life of the train. Therefore, the protection of high-speed train components is crucial. <\/p>\n
The application scenarios of polyurethane sponge softener in high-speed trains mainly include:<\/p>\n
parameter name<\/th>\n | Value Range<\/th>\n | Unit<\/th>\n | Remarks<\/th>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
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Density<\/td>\n | 20-200<\/td>\n | kg\/m\u00b3<\/td>\n | Select according to application scenario<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
Hardness<\/td>\n | 10-90<\/td>\n | Shore A<\/td>\n | Moderate hardness and good elasticity<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
Tension Strength<\/td>\n | 0.5-5.0<\/td>\n | MPa<\/td>\n | Excellent tensile resistance<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
Elongation of Break<\/td>\n | 100-500<\/td>\n | %<\/td>\n | Good elasticity, not easy to break<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
Compression permanent deformation<\/td>\n | 5-20<\/td>\n | %<\/td>\n | Good recovery after compression<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
Rounce rate<\/td>\n | 40-80<\/td>\n | %<\/td>\n | Good elastic recovery performance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n3.2 Chemical Properties Parameters<\/h3>\n
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