Basic Characteristics and Durability of Polypropylene Non-woven Fabric
Polypropylene non-woven fabric is made from polypropylene fibers through thermal or chemical bonding. It is lightweight, breathable, and waterproof. Its durability depends primarily on the following factors:
1. Fiber Strength: Polypropylene fibers typically have a breaking strength of 30-60 MPa (data source: ISO 9073-3 standard), which is higher than that of ordinary plastic film and therefore less prone to shattering.
2. Production Process: Non-woven fabrics produced through thermal bonding have a denser structure and a tensile strength of up to 15-25 N/5 cm (reference: GB/T 3923.1-2013), making them more durable than chemically bonded products.
3. Effect of Additives: Some manufacturers add anti-aging agents (such as UV stabilizers) to extend outdoor service life to over five years (data source: "Nonwovens Industry Technology" journal).
Is polypropylene non-woven fabric easily shattered?
1. Under normal use:
- Polypropylene nonwovens are not easily shattered in everyday situations such as wiping and packaging. Experiments show that after folding 100 times, the weight loss of high-quality products is less than 1% (test standard: ASTM D5035).
- However, low-weight products (<20g/m²) or nonwovens made from recycled materials may be more prone to breakage due to their short fibers and loose structure.
2. Impact of extreme environments:
- High temperatures (>80°C) or prolonged UV exposure can cause molecular chain breakage and accelerate aging. For example, the strength of untreated nonwovens decreases by approximately 40% after six months of outdoor exposure (data source: SGS test report).
- Chemical corrosion (such as strong acids and alkalis) can also dissolve adhesives, causing delamination and shattering.
How to improve the durability of polypropylene nonwovens?
1. Choose high-weight products: For medical and industrial applications, we recommend nonwovens with a weight of 40g/m² or higher, which offer superior tear resistance.
2. Focus on craftsmanship and certification: Prefer products that have undergone hot rolling or carry ISO 9001 certification.
3. Avoid abuse: Minimize mechanical friction (such as hard brush cleaning) and exposure to extreme temperatures.