Manufacturing process of PTFE waterproof sound-permeable membrane

PTFE waterproof sound-permeable membrane is a new type of polytetrafluoroethylene composite polymer with waterproof The breathable membrane processing factory cuts the membrane into waterproof and breathable membrane materials. The performance of this material is generally outstanding.

Waterproof breathable (moisture-permeable) materials: also known as breathable materials (breathable fabrics, breathable paper, etc.), can prevent liquid water from passing or penetrating, and at the same time can Materials through which gas (or water vapor) passes. Structurally, it can be divided into microporous materials (including polytetrafluoroethylene PTFE microporous membrane, polyurethane PU microporous membrane, ultra-dense fabric, polyethylene PE porous membrane) and non-porous materials (thermoplastic polyurethane TPU hydrophilic non-porous membrane ), as well as microporous and non-porous composite materials (PTFE microporous membrane + PU non-porous membrane, fabric + hydrophobic treatment agent coating, PP + PE porous membrane + PP laminate composite).

PTFE waterproof sound-permeable membrane is made by special processes such as mixing, extrusion, extrusion, calendering, and biaxial stretching. Due to the characteristics of ptfe fibrillation, when uniaxial stretching (i.e. longitudinal stretching) is performed, the ptfe polycrystalline aggregates begin to extend and form some fibrils. The fibrils are parallel to the stretching direction and the length of the fibrils increases. ptfe The cross-section of the fibril is wide and thin, the maximum width is about 100nm, and the smallest fibril is 0. 5 ~ 1. 0nm.

It is a company specializing in the research, development, production and sales of PTFE waterproofing Sound-transmitting membrane manufacturer. The product materials produced by our company are all imported raw materials, with high uniformity, stable performance and good air permeability. They also have high filtration efficiency and can meet the filtration efficiency levels of sub-efficient, high-efficiency and ultra-high-efficiency filters. Requirements. Interested parties can enter the store to inquire and purchase!

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