NEWS
One hundred companies PK
Latest products
Six properties of pp non-woven fabric
by：Sunshine
2021-04-11
1) Physical properties: PP non-woven fabric is a non-toxic, odorless, milky white highly crystalline polymer. It is one of the lightest varieties of all plastics at present. It is particularly stable to water and has a water absorption rate of 14 hours in water.
Only 0.01%. The molecular weight is between 80,000 and 150,000, and the moldability is good. However, due to the large shrinkage rate, the original wall products are easy to dent, the surface of the products has good gloss and is easy to color.
(2) Mechanical properties: PP non-woven fabric has high crystallinity and regular structure, so it has excellent mechanical properties. Its strength, hardness and elasticity are higher than high-density PE (HDPE).
The outstanding feature is the resistance to flexural fatigue (7×10^7), which can be turned on and off again without damage. The coefficient of dry friction is similar to nylon, but it is inferior to nylon under oil lubrication.
(3) Thermal performance: PP non-woven fabric has good heat resistance, melting point is 164~170℃, and products can be sterilized at temperatures above 100℃. No deformation at 150°C under no external force.
The embrittlement temperature is -35℃, 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 being corroded by acid, it is relatively stable to other chemical reagents, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons, etc.
It can soften and swell the PP non-woven fabric, and its chemical stability will be improved with the increase of crystallinity. Therefore, PP non-woven fabric is suitable for making Russian-Chinese chemical pipelines and fittings, and has good anti-corrosion effects.
(5) Electrical properties: non-woven fabrics have excellent high-frequency insulation properties. Because it hardly absorbs water, the insulation properties are not affected by humidity, and have a high dielectric coefficient, and with the rise of temperature,
It can be used to make heated electrical insulation products, with high breakdown voltage, suitable for electrical accessories, etc. Good resistance to voltage and arc, but high static electricity, easy to aging in contact with copper.
(6) Weather resistance: Non-woven fabrics are very sensitive to ultraviolet rays. Adding zinc oxide thiopropionic acid dilaurate, carbon black-like milky white fillers, etc. can improve its aging resistance.
Only 0.01%. The molecular weight is between 80,000 and 150,000, and the moldability is good. However, due to the large shrinkage rate, the original wall products are easy to dent, the surface of the products has good gloss and is easy to color.
(2) Mechanical properties: PP non-woven fabric has high crystallinity and regular structure, so it has excellent mechanical properties. Its strength, hardness and elasticity are higher than high-density PE (HDPE).
The outstanding feature is the resistance to flexural fatigue (7×10^7), which can be turned on and off again without damage. The coefficient of dry friction is similar to nylon, but it is inferior to nylon under oil lubrication.
(3) Thermal performance: PP non-woven fabric has good heat resistance, melting point is 164~170℃, and products can be sterilized at temperatures above 100℃. No deformation at 150°C under no external force.
The embrittlement temperature is -35℃, 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 being corroded by acid, it is relatively stable to other chemical reagents, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons, etc.
It can soften and swell the PP non-woven fabric, and its chemical stability will be improved with the increase of crystallinity. Therefore, PP non-woven fabric is suitable for making Russian-Chinese chemical pipelines and fittings, and has good anti-corrosion effects.
(5) Electrical properties: non-woven fabrics have excellent high-frequency insulation properties. Because it hardly absorbs water, the insulation properties are not affected by humidity, and have a high dielectric coefficient, and with the rise of temperature,
It can be used to make heated electrical insulation products, with high breakdown voltage, suitable for electrical accessories, etc. Good resistance to voltage and arc, but high static electricity, easy to aging in contact with copper.
(6) Weather resistance: Non-woven fabrics are very sensitive to ultraviolet rays. Adding zinc oxide thiopropionic acid dilaurate, carbon black-like milky white fillers, etc. can improve its aging resistance.
Custom message
