A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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 (author) / YAO FENG (author) / WU CHENGRAN (author) / MENG FANDI (author) / DENG JIAO (author) / SUN ZHAOLIANG (author) / ZHU ZHIYONG (author) / WANG CAI (author) / YAN WEIMIN (author) / LI CHENGLIANG (author)
2023-04-25
Patent
Electronic Resource
Chinese
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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