Waterproof ventilated membrane for car light and manufacturing method thereof

Abstract

The invention relates to a waterproof ventilated membrane for car light. The waterproof ventilated membrane is formed by compounding of three layered structures and comprises a fabric layer, a waterproof ventilated layer and a bonding layer which is arranged between the above fabric layer and the waterproof ventilated layer and is used for connecting the fabric layer and the waterproof ventilated layer. The invention solves defects existing in the prior art. According to the waterproof ventilated membrane for car light, a fabric material and an expanded polytetrafluoroethylene film undergo compounding, laminated water resistance and oil resistance processing so as to obtain a multifunctional high-molecular material, thus endowing the expanded polytetrafluoroethylene film with better strength, waterproofness, permeability, oleophobic performance, long life, weldability and the like and maintaining internal and external pressure balance. The waterproof ventilated membrane can be used to raise reliability of many automobile parts, including parts of a car light, an engine controller / anti-lock braking system module, a sensor, a connector, an electric car window motor, a fuel system and the like, and is applied in automobile and heavy trucks. Air exchange can be carried out rapidly according to the pressure variation generated by temperature change, and vehicles can be protected from being polluted by water, automobile discharged fluids and dust.

Description

technical field [0001] The invention relates to a protective film for vehicle parts, in particular to a waterproof and breathable film for vehicle lights and a manufacturing method thereof. Background technique [0002] With the popularity of automobiles, people have higher and higher requirements for the quality and performance of automobiles. When automobiles are running in rain or high and low temperature weather, many important parts of automobiles are subject to pollution from rainwater, automobile oil, dust and other dirt. Such as lights, connectors, air pressure sensors, electronic components, and under the hood are constantly exposed to various weather, road conditions, and environments that may affect the driving performance of the vehicle. In the past, the protection of these important parts was very simple, such as covering them with ordinary fabric cloth or plastic film. Simple protection caused splashing water, humidity, automobile oil, road debris, dust, etc. t...

AI Technical Summary

Problems solved by technology

In the past, the protection of these important parts was very simple, such as covering them with ordinary fabric cloth or plastic film. Simple protection caused splashing water, humidity, automobile oil, road debris, dust, etc. to affect vehicle parts and reduce the cost of vehicle parts. The performance of the vehicle, thus affecting the quality performance and safety performance of the vehicle, the rapid drop in temperature will cause the internal pressure of some component assemblies to drop, forming a negative pressure, thereby inhaling pollutants, increasing fogging and possibly causing failure of parts, connectors, air pressure Sensors, electronic components, etc. are oxidized and rusted after being infiltrated by rainwater, gradually lose their functions, and frequent failures increase the unsafety and maintenance costs of the car

Images