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Sound permeable waterproof, oil proof, and breathable film series

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  • Product parameters

     

Lede waterproof and breathable film is made of dispersed PTFE resin as raw material, and is laminated with polyester and 

other substrates after stretching and puffing. Before lamination, the PTFE film and substrate are treated for oil resistance,

 high temperature resistance, flame retardancy, UV resistance, hydrophobicity, self-cleaning, and other properties. Perform

 toughness treatment on the membrane to improve waterproof performance and tensile strength.


The ePTFE membrane is formed by expanding and expanding polytetrafluoroethylene. The stretched polytetrafluoroethylene

 membrane forms a network structure in all three dimensions, with over 9 billion micropores per square inch on the surface of 

the membrane. Excellent stretching technology can maintain the diameter of micropores between 0.1-3.0 micrometers

 (0.1-3.0 × 10-6m). Far smaller than water droplets by more than 10000 times, ePTFE film has excellent water resistance

 performance (exceeding the waterproof requirements of IP67 standard), and even the smallest water droplets (light mist)

 cannot pass through the film. At the same time, the diameter of the micropores is more than 700 times larger than that of 

water vapor molecules. So, while possessing strong waterproof properties (as well as preventing oil, dust, bacteria, etc.), it 

can also allow gas molecules to easily pass through the micropores on the membrane, thereby achieving the function of air 

permeability and pressure balance. Therefore, it achieves the elimination of negative pressure water absorption caused by 

gas expansion and contraction stress, and solves the problem of fog and vapor.

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Le De's membrane treatment content:

 

• 疏水性处理
• 抗紫外线处理
• 拒墨汁处理
• 拒油性处理
• 抗红外线处理
• 拒清洁剂处理
• 阻燃性处理
• 防霉处理
• 覆膜处理


• 拒血处理

 

Features of Lede waterproof and breathable film:


·Excellent self-cleaning performance

·It can prevent various dust from entering the equipment and maintain a high air flow rate without passing through water, aerosols, and particles.

·Opening rate: above 85%;

·Uniform pore size distribution can be controlled between 0.01 and 5.0 μ Within m

·Has an ultra long service life

·Preferred substrates (polytetrafluoroethylene (ECT FE), non-woven and mesh fabrics, polyester, polypropylene)

 


Scanning electron microscopy images ranging from 2000 to 10000 times clearly demonstrate the uniformity of the Lede

 membrane itself, the rigidity of membrane fibers, and the porosity of the membrane, among other aspects.

In order to give everyone a more intuitive understanding of our product, please take a look at the microscopic pictures.

 

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In practical production, there are many waterproof and breathable valves that require metal materials to achieve higher strength and longer lifespan.


The metal sleeve is equipped with a threaded waterproof and breathable valve, commonly known as a respirator, breathable screw, etc. This product uses the EPTFE membrane material jointly developed by our company and partners. The shell is made of brass, aluminum, or stainless steel, and the membrane and shell are tightly matched with the metal shell through interference fit. It has the characteristics of stable performance, simple installation, longer use time, and high waterproof and breathable performance.


Use a socket or ring wrench for installation, and pay attention to controlling the torque between 0.5 and 0.6NM. 

The specific adjustment depends on the size and hardness of the matching installation thread and O-ring.


Good waterproof performance

Quickly restore breathability by leaving the liquid surface

The groove design ensures that the O-ring will not overflow



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储存要求

  1、避免阳光直射,避免靠近热源,避免灰尘

  2、储存时间不超过1年

 

操作注意事项

  1、把膜片安装位安排在竖立的方向,以免灰尘堆积

  2、在安装膜片的位置施加明显的定位线,最有是限位台阶

  3、安装表面粗糙度不得超过0.4 µm Ra。

  4、确保环境清洁,以免环境灰尘干扰安装效果

  5、确保安装面干净、干澡

  6、避免有尖刺的部件触碰防水透气膜片

  7、请戴干净胶指套或胶手套操作,避免手指直接接触防水透气膜片

  8、准备钝边镊子不得使用可能损坏防水透气产品的尖嘴镊子。

 

从离型材提取膜片

  方法1:卷起离型材料,使防水透气膜片与离型材料分离,分离到约1-2mm再用摄子提取膜片

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  方法2:把产品放在平整上的台面上,用摄子轻轻挑起膜片,挑起1-2mm后摄子轻夹直接从离型材料上轻轻取下膜片

 

贴放膜片

 

  把膜片准确放置在目标限位区间内

  若有二次粘膜片,应把前次膜片废除,先清洁好粘贴区间,重新贴新膜片

  放置定位好膜片后,用手指用约3万pa的压强垂直持续施加在膜片上5至10秒钟

  为了确保为效粘贴,应采用橡胶辅助压合工具

    橡胶辅助工具应与环形背胶吻合

    橡胶硬度大约在30度,厚度可以2至5mm

    压合压强约3万pa

    辅助压合时间大约24小时

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安装后的检查

  1、是否定位好

  2、离型材料的废材是否有附在膜片上,若有附上应去除

  3、有无灰法、异物,若有应吹除

 

移除不良膜片

  如果生产中或使用中发现有不良情况发生,需移除受损的膜片。可以应用95%医药酒精或白电油进行清除膜片上的背胶。

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24-hour service hotline: 13502291950

Phone: 0752-2601855

Fax: 0752-2601865

Email::sales@hzlede.com

Address: No. 3-1 Xinpeng Road, Xinle Industrial Zone, Ma'an Town, Huizhou City









Copyright ALL RIGHTS RESERVED Huizhou Lede Electronic Technology Co., Ltd 粤ICP备15115233号  http://:www.hzlede.com 


E-mail:allen_wu@kataitech.com    后台管理


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