Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polyurethane microcellular foaming railway ballast pad and preparation method thereof
The invention belongs to the technical field of foaming railway ballast pads, and particularly relates to a polyurethane microcellular foaming railway ballast pad and a preparation method thereof, the polyurethane microcellular foaming railway ballast pad comprises the following components: ISO components: aromatic diisocyanate, polytetrahydrofuran ether glycol, polyether polyol and a retarder; the POLY component is prepared from polytetrahydrofuran ether glycol, polymer polyol, 4, 4 '-methylenebis (2-chloroaniline), a thermosensitive catalyst, dimethyl tin dimercaptoacetate, an alcohol amine catalyst, an amine catalyst, a foaming agent and a foam stabilizer; the weight ratio of the ISO component to the POLY component is 100: (90 to 205); the anti-fatigue performance can be effectively improved, and the production cost is reduced.
本发明属于发泡道砟垫技术领域，具体是涉及一种聚氨酯微孔发泡道砟垫及其制备方法，包括如下组分，ISO组分：芳香族二异氰酸酯、聚四氢呋喃醚二醇、聚醚多元醇和缓凝剂；POLY组分：聚四氢呋喃醚二醇、聚合物多元醇、4,4'‑亚甲基二(2‑氯苯胺)、热敏催化剂、二巯基乙酸二甲基锡、醇胺催化剂、胺类催化剂、发泡剂和匀泡剂；所述ISO组分和POLY组分的重量比为100:90‑205；本发明可以有效提高其抗疲劳性能，降低生产成本。
Polyurethane microcellular foaming railway ballast pad and preparation method thereof
The invention belongs to the technical field of foaming railway ballast pads, and particularly relates to a polyurethane microcellular foaming railway ballast pad and a preparation method thereof, the polyurethane microcellular foaming railway ballast pad comprises the following components: ISO components: aromatic diisocyanate, polytetrahydrofuran ether glycol, polyether polyol and a retarder; the POLY component is prepared from polytetrahydrofuran ether glycol, polymer polyol, 4, 4 '-methylenebis (2-chloroaniline), a thermosensitive catalyst, dimethyl tin dimercaptoacetate, an alcohol amine catalyst, an amine catalyst, a foaming agent and a foam stabilizer; the weight ratio of the ISO component to the POLY component is 100: (90 to 205); the anti-fatigue performance can be effectively improved, and the production cost is reduced.
本发明属于发泡道砟垫技术领域，具体是涉及一种聚氨酯微孔发泡道砟垫及其制备方法，包括如下组分，ISO组分：芳香族二异氰酸酯、聚四氢呋喃醚二醇、聚醚多元醇和缓凝剂；POLY组分：聚四氢呋喃醚二醇、聚合物多元醇、4,4'‑亚甲基二(2‑氯苯胺)、热敏催化剂、二巯基乙酸二甲基锡、醇胺催化剂、胺类催化剂、发泡剂和匀泡剂；所述ISO组分和POLY组分的重量比为100:90‑205；本发明可以有效提高其抗疲劳性能，降低生产成本。
Polyurethane microcellular foaming railway ballast pad and preparation method thereof
一种聚氨酯微孔发泡道砟垫及其制备方法
ZHANG FENGQIAO (Autor:in) / YAO FENG (Autor:in) / WU CHENGRAN (Autor:in) / MENG FANDI (Autor:in) / DENG JIAO (Autor:in) / SUN ZHAOLIANG (Autor:in) / ZHU ZHIYONG (Autor:in) / WANG CAI (Autor:in) / YAN WEIMIN (Autor:in) / LI CHENGLIANG (Autor:in)
25.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
E01B
PERMANENT WAY
,
Gleisoberbau
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