PP spunbonded non-woven fabric refers to the non-woven fabric produced by polypropylene (PP) as raw material. The non-woven fabric produced by this material is a commonly used PP spunbonded non-woven fabric on the market. This kind of non-woven fabric can be rich in color, bright and bright, fashion and environmental protection, a wide range of uses, beautiful and generous, diverse patterns and styles, and light weight, environmental protection, recyclable, is internationally recognized as the environmental protection products to protect the earth's ecology.
PP non-woven amount a variety of common properties
(1) Physical properties
PP non-woven fabric is non-toxic, tasteless opalescent high crystallization polymer, is one of the most light plastic varieties at present, especially stable to water, in the water 14h water absorption rate is only 0.01%. Molecular weight about 80-150 thousand, good formability. But because the shrinkage rate is large, the original wall products are easy to sag, the product surface color is good, easy to color.
(2) Mechanical properties
PP non-woven fabric has high cleanliness, regular structure, so it has excellent mechanical properties, its strength and hardness, elasticity are higher than high density PE. The outstanding characteristics are strong resistance to bending fatigue, dry friction coefficient is similar to nylon, but not as good as nylon under oil lubrication.
(3) Thermal performance
PP non-woven fabric has good heat resistance, melting point at 164-170℃, products can be sterilized at more than 100℃ temperature. Under the action of no external force, 150℃ does not deform. 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 can make PP non-woven fabric softening and swelling, chemical stability with the increase of cleanliness and improve.
(5) Electrical properties
Non-woven high frequency insulation performance is excellent, because it almost does not absorb water, 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 very high, suitable for electrical accessories. Good voltage resistance, arc resistance, but high electrostatic degree, easy to aging contact with copper.
(6) Weather resistance
Non-woven fabric is very sensitive to ultraviolet light, adding zinc oxide dilaurium thiopropionate, carbon black similar milky fillers can improve its aging resistance.