The invention discloses a lower drainage valve of an automobile skylight drainage pipe and a drainage system applying the lower drainage valve, the lower drainage valve of the automobile skylight drainage pipe is formed by blending polyether type TPU and polyester type TPU, and the mass ratio of the polyether type TPU to the polyester type TPU is (81.3-85.3): (14.6-18.6). According to the lower drainage valve of the automobile skylight drainage pipe, the material can meet the hydrolysis resistance requirement, and after the lower drainage valve and a PVC drainage pipe body are subjected to injection molding, the connecting corner position has hydrolysis resistance and pressure resistance.
本发明公开了一种汽车天窗排水管下排水阀及其应用的排水系统,其中汽车天窗排水管下排水阀,由聚醚型TPU和聚酯型TPU共混组成,所述聚醚型TPU与聚酯型TPU的质量比为(81.3‑85.3):(14.6‑18.6)。本发明提供一种汽车天窗排水管下排水阀,材料本身能满足耐水解要求,且与PVC排水管管身注塑接角后接角处具有耐水解性和耐压性。
Lower drainage valve of automobile skylight drainage pipe and drainage system applying lower drainage valve
一种汽车天窗排水管下排水阀及其应用的排水系统
2024-03-08
Patent
Electronic Resource
Chinese
Intelligent skylight drainage system, automobile and intelligent skylight drainage control method
European Patent Office | 2023
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