Various common properties of PP non-woven fabrics:

(1) Physical properties: PP non-woven fabric is non-toxic, tasteless milky white high crystalline polymer, is currently one of the lightest varieties of all plastics, especially stable to water, 14h water absorption.

Just 0.01 percent. Molecular weight of about 8~ 150 thousand, good formability. However, due to the large shrinkage rate, the original wall products are easy to sag, and the surface of the products is good and easy to color.

(2) Mechanical properties: PP non-woven fabric has high crystallinity and regular structure, so it has excellent mechanical properties, and its strength, hardness and elasticity are higher than high-density PE(HDPE).

The outstanding feature is the resistance to bending fatigue (7×10^7) the opening and closing of the fold bending without traces of damage, the dry friction coefficient is similar to nylon, but it is not as good as nylon under oil lubrication.

(3) Thermal properties: PP non-woven fabric has good heat resistance, melting point at 164~170℃, products can be sterilized at temperatures above 100℃. Under the action of no external force, 150℃ does not deform.

The embrittlement temperature is -35℃, and embrittlement will occur below -35℃, and the heat resistance is not as good as PE.

(4) Chemical stability: PP non-woven fabric has good chemical stability, in addition to acid erosion, other chemical reagents are relatively stable, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and so on

It can make PP non-woven fabric soften and swell, and the chemical stability is improved with the increase of crystallinity. Therefore, PP non-woven fabric is suitable for the production of Russian-Chinese chemical pipelines and accessories, and the anti-corrosion effect is good.

(5) Electrical properties: non-woven high frequency insulation performance is excellent, because it is almost no water absorption, so the insulation performance is not affected by humidity, has a high dielectric coefficient, and with the rise of temperature,

Can be used to make heated electrical insulation products, breakdown voltage is also high, suitable for electrical accessories. Good voltage resistance and arc resistance, but high static electricity, easy aging in contact with copper.

(6) Weather resistance: non-woven fabric is very sensitive to ultraviolet light, adding zinc oxide thiopropionate dilauryl grease, carbon black similar milky fillers can improve its aging resistance.

PP non-woven fabric is also called non-woven fabric, it is composed of directional or random fibers, PP non-woven fabric is the most environmentally friendly material products in modern applications, this product has moisture-proof, breathable, flexible, light weight, non-combustion, easy to decompose, non-toxic and non-irritating, rich color, low price, recyclable and other characteristics. Such as the use of polypropylene (pp material) pellets as raw materials, through high temperature melting, spinning, laying, hot roll continuous step production. It is called cloth because it has the appearance and certain properties of cloth.

PP non-woven products have the characteristics of rich color, bright and bright, fashion and environmental protection, his use is very wide, beautiful and generous, patterns and styles are diverse, and light weight, environmental protection, recyclable, is internationally recognized as the protection of the earth's ecology of environmental protection products.