What are the functions of breathable membranes? What is the material and use of waterproof and breat

Breathable membrane. What are the functions?

Function. 1. Ventilation: Many equipment has not done a good job of ventilation, and the basic life has been affected to a certain extent.

At this time, there is no need to worry about this problem with the breathable film, because the breathable film can effectively breathe, which will make the service life of the equipment longer, and there will be no bad problems.

Function. 2. Waterproof: The breathable membrane also has the function of waterproof to a certain extent, so the use of the breathable membrane in the industrial field is very widespread.

Because this breathable membrane has the effect of waterproofing, the service life of the equipment is very long. Therefore, it is very good to use breathable membranes in the industrial field.

Function. 3. Dustproof: The breathable membrane can not only effectively breathe and waterproof, but also effectively balance the pressure, and can also play a good dustproof effect.

This breathable membrane design can block the entry of dust, block the dust outside, and ensure that the inside of the equipment is not disturbed by dust, so the effect of the breathable membrane dustproof is very good.

The material of waterproof breathable membrane is generally polytetrafluoroethylene (E-PTFE), EPTFE is a new type of waterproof and breathable material, waterproof and breathable membrane has three major functions: waterproof: micron micropores, pore size is less than 10,000 times that of water droplets, so that water can not pass through, effectively protect sensitive parts, avoid liquid erosion, and improve the service life of the product.

Waterproof and breathable membranes can be used in electronic products with waterproof needs, such as sensors, outdoor lights, auto parts, batteries, and some small household appliances such as electric toothbrushes, shavers and other electronic products.

The waterproof and breathable membrane is a polymer compound made of tetrafluoroethylene polymerization, which has excellent chemical stability and corrosion resistance (it is one of the best corrosion resistant materials in the world today.

In addition to molten metal sodium and liquid fluorine, it can resist all other chemicals, and it does not change when boiled in aqua regia, and is widely used in various types of applications that require resistance to acid, alkali and organic solvents), sealing, high lubrication and non-stickiness, electrical insulation and good anti-aging endurance, excellent temperature resistance (can work for a long time at temperatures from +250 to -180).

Advantages of use: High temperature resistance - operating temperature up to 250 °C.

Low temperature resistance - with good mechanical toughness; Even when the temperature drops to -196, the elongation of 5% can be maintained.

Corrosion-resistant - inert to most chemicals and solvents, resistant to strong acids and alkalis, water and various organic solvents.

Weather-resistant – has the best aging life of any plastic.

High lubrication – the lowest coefficient of friction among solid materials.

Non-adhesion – is the smallest surface tension in a solid material and does not adhere to any substance.

Non-toxic - physiologically inert, as artificial blood vessels and organs implanted in the body for a long time without adverse reactions.

Waterproof and breathable membrane: a new type of polymer waterproof material.

Waterproof and breathable membrane (also known as Puwei waterproof and breathable membrane) is a new type of polymer waterproof material. In terms of production process, the technical requirements of waterproof and breathable membranes are much higher than those of general waterproof materials; At the same time, from the point of view of quality, the waterproof breathable membrane also has functional characteristics that other waterproof materials do not have.

Application of waterproof and breathable membranes:

Building materials: In the construction industry, it is divided into standard waterproof and breathable membranes, sloped roof waterproof and breathable membranes, and general waterproof and breathable membranes for sloping roofs.

Automotive exterior lighting: Puwei waterproof and breathable membranes can provide long-lasting protection for the lights from the intrusion of external moisture, dust, oil and other dirt. At the same time, the unique breathability function of the product can be exchanged with the change of pressure, so as to reduce the pressure on the seal and prolong the service life of the product.

Communication equipment: After the installation of Puwei waterproof and breathable membrane products in outdoor communication equipment, the pressure difference caused by temperature changes will no longer have a negative impact on the equipment housing, because the waterproof and ventable products can quickly balance the pressure inside and outside the housing when the ambient temperature and pressure change.

Precision Electronics: Installed on the device port, the vent provides pressure discharge and peace when the device is exposed to dust, splashes, and temporary immersion in water.

Balance function.

Waterproof and breathable membrane: a new type of polymer waterproof material.

1. The waterproof breathable membrane has high tensile strength and elongation of 300-500% 2. The waterproof breathable membrane has high air permeability (it can reach 10000g m2 for 24 hours, and it can also reach 5000-7000g m2 for 24 hours after lamination, depending on the lamination method, technology and fabric and glue of each factory).

3. The waterproof and breathable membrane has superb wear resistance: it is 4-5 times that of rubber 4. The waterproof and breathable membrane has superb chemical resistance and oil resistance: it is better than most of the general materials 5. The waterproof and breathable membrane has high waterproof (the film with good air permeability is usually made of polyether TPU, so its hydrolysis resistance and antibacterial properties are very good, and the water pressure resistance is also very excellent due to its high strength).

6. The waterproof and breathable membrane has excellent transparency: the transparency can be adjusted according to the use 7. The waterproof and breathable membrane has high elasticity: good elasticity and strong resilience.

8. The waterproof and breathable membrane has excellent cold resistance: the physical properties do not change at -40 --70 C.

Its main function is waterproofing, and everything else is secondary.

Waterproof and breathable membrane.

Features: 1. The waterproof and breathable membrane can prevent condensation and fogging, and improve the life of the product.

2. Micro-heat dissipation and balance pressure difference. Improve product integrity.

3. Waterproof, dustproof, anti-oil stains, and the protection level reaches IP68.

4. The waterproof and breathable membrane is resistant to chemicals, high and low temperatures, anti-aging, etc., to improve the authenticity of the product in the harsh environment.

Waterproof and breathable membranes can be applied to waterproof mobile phones and walkie-talkies, hearing aids, digital cameras, electric shavers, electric toothbrushes, water suction machines, travel irons, sports watches, smart wearables and other consumer electronics.

Goel's waterproof and breathable membrane protection products have good waterproof performance and good air permeability at the same time, which well meet the requirements of electronic products for dustproof, waterproof, breathable and heat dissipation protection products.

Waterproof and breathable membrane.

Waterproof breathable membrane in LED

It has a wide range of applications, such as: LED outdoor lamps, LED wall washers, flood lights, flood lights, etc. These LED lamps and lanterns have the application of Puwei waterproof vents, and generally use IP67 waterproof Puwei vents!