Guida definitiva ai tipi di corda sintetica

Le funi in fibra sintetica stanno guadagnando popolarità come alternativa leggera, maneggevole e più sicura alle funi in acciaio. Tuttavia, ne esistono di diverse tipologie. In questo articolo, ne illustreremo le diverse tipologie in base a materiali, struttura, applicazioni, resistenza e colore.

Che cosa è la corda sintetica?

La corda sintetica (detta anche corda di plastica) è una corda flessibile e resistente realizzata con fibre sintetiche. È comunemente utilizzata per il traino, il sollevamento, l'ormeggio e l'attrezzatura. Rispetto alle tradizionali corde in fibra naturale, le corde sintetiche offrono una resistenza superiore, resistenza all'abrasione e alla corrosione.

Tipi di corda sintetica in base al materiale

Corda in poliestere

Descrizione: Come suggerisce il nome, la corda in poliestere è una corda sintetica intrecciata con fibre di poliestere ed è considerata una corda sintetica multiuso.

Proprietà:

Peso specifico: 1,38 g/cm3

Elevata resistenza all'abrasione

Forte protezione UV

Ottima resistenza chimica

Non assorbe acqua

Resistenza alle alte temperature: fino a 265°C

Usi comuni: Ormeggio, rimorchio, pesca, linea di sicurezza, attrezzatura e vela

Corda di nylon

Descrizione: corda di nylon è un tipo di corda sintetica realizzata in fibre di nylon (poliammide), nota per la sua elevata elasticità e resistenza, che la rendono ampiamente utilizzata in varie applicazioni.

Proprietà:

Gravità: 1,14 g/cm3 non galleggia

Elevato allungamento fino a 25%               

Ottima resistenza al calore: 215°C (420°F)                   

Buona resistenza ai raggi UV                  

Eccezionale resistenza all'usura

Buona resistenza chimica

Usi comuni: marina, pesca, sollevamento, soccorso veicoli e arrampicata

Corda in polipropilene

Descrizione: La corda in polipropilene è una corda sintetica realizzata con fibre di polipropilene intrecciate. Noto per essere un polimero altamente resistente, il polipropilene rende questa corda estremamente resistente e versatile, rendendola ampiamente utilizzata in diverse applicazioni.

Proprietà:

Gravità: 0,91/cm3 galleggia sull'acqua

Resistenza al calore: 160°C (320°F)                   

Buona resistenza all'usura          

Eccellente resistenza chimica

Buona resistenza ai raggi UV

Usi comuni: ormeggio marino, pesca, sport ricreativi, edilizia.

Corda in polietilene

Descrizione: La corda in polietilene, realizzata con fibre di polietilene, è nota per la sua particolare consistenza cerosa. È generalmente disponibile in varianti a 3, 6 e 16 trefoli per diverse applicazioni.

Proprietà:  

Gravità: 0,91 g/cm³ (galleggia sull'acqua)

Resistenza al calore: 80°C (176°F)

Buona resistenza all'usura

Eccellente resistenza chimica

Buona resistenza ai raggi UV

Usi: marino, commercial fishing, construction, agriculture etc.

Corda in KEVLAR (ARAMIDE)

Descrizione: corda in kevlar is made from a fiber called Kevlar (an aramid fiber), known for its exceptional heat resistance and high strength, making it ideal for use in various specialized fields.

Proprietà:

Gravity: 1.44 g/cm3 immersed

Melting Point: 930°C                 

Elongation at break: 3~4%

Buona resistenza ai raggi UV

Excellent Abrasion Resistance

Good Chemical Resistance

Usi: Sailing, Fire Mooring, Lifting, Safey line, Military and Tactical, fiber optic cables

Corda in UHMWPE (polietilene a peso molecolare ultra-elevato)

Descrizione: UHMWPE rope is a synthetic rope made from ultra-high molecular weight polyethylene, typically consisting of 12 strands. Its lightweight and high strength provide better solutions for specific applications

Proprietà: 

Gravity: 0.97g/cm3 floating

Melting point: 145°C

Elongation at break: 3.5%                  

None water absorption          

Buona resistenza ai raggi UV                    

Good Wear resistance                    

Eccellente resistenza chimica

Usi: vehicle recovery, marino towing, ormeggio, al largo, telecom hauling, sollevamento di carichi pesanti.

Tabella di confronto

Tipi di corda sintetica per struttura

Corda attorcigliata

Twisted rope is made by first spinning synthetic fibers into yarn. Then, a certain number of these yarns are twisted together to form a strand. Finally, multiple strands are twisted together to create a thicker rope. This results in a rope that has a spiral shape.

Twisted rope is not only cheaper and easier to splice than braided rope, but it also has greater elasticity. The most common type is made with three strands, and various synthetic fibers like nylon, polyester, polypropylene, Kevlar, and high-density polyethylene are widely used to make twisted rope.

Corda intrecciata

Braided ropes are created by intertwining strands of yarn to form a tubular braid. Typically, braided ropes have higher tensile strength, better flexibility, a smoother surface that reduces wear, and they are lighter and more durable.

The most common types include solid braid rope, diamond braid rope, hollow braid rope, double braid rope, kernmantle braid rope, plaited rope, and knit braid rope, among others.

Tipi di corda sintetica per applicazione

Corda da arrampicata

Climbing ropes are specialized ropes used during climbing to absorb the impact of falls. They also provide effective safety measures for situations like rappelling and rescue descents, ensuring the safety of climbers and allowing climbing activities to proceed smoothly. Climbing ropes are typically categorized into dynamic ropes, static ropes, and waterproof ropes.

Cavo di traino

UN tow rope is specifically designed to pull or tow vehicles, boats, heavy equipments, or other objects. Common types of synthetic fiber tow ropes include nylon dynamic ropes, ultra-high molecular weight polyethylene tow ropes, Kevlar tow ropes, polypropylene (PP) tow ropes, and polyethylene (PE) tow ropes. When using a tow rope, it’s important not to exceed its load capacity to ensure safety

Corda da carico

Cargo ropes are typically made from synthetic fibers like nylon, polypropylene, or polyester. They are designed to securely fasten goods during transportation and storage, preventing damage and potential safety hazards while ensuring the safety of personnel and minimizing cargo loss. Common types include braided cargo ropes, twisted cargo ropes, and elastic cargo ropes.

Fune di sollevamento

Lifting ropes (also called lifting sling) are typically made from high-performance synthetic fibers like UHMWPE, Kevlar, nylon, and polyester.

They are specifically designed for lifting and rigging tasks. Synthetic lifting ropes are lightweight, strong, and easy to handle, making them ideal for use in industries such as ports, logistics, transportation, marine applications, and rescue operations.

They also serve as a modern alternative to traditional steel wire lifting ropes, providing enhanced safety and efficiency for your lifting needs. By choosing synthetic lifting ropes, customers benefit from improved performance and reduced weight, ultimately making operations smoother and safer.

Corda da pesca

Fishing ropes, also known as trawl or net ropes, are specially designed synthetic fiber ropes for general and commercial fishing operations. Made primarily from nylon or high-density polyethylene, these ropes are lightweight, strong, and durable. They significantly enhance fishing efficiency and ensure the safety of personnel, focusing on meeting customer needs and delivering tangible benefits.

Corda agricola

Synthetic agriculture ropes are specifically designed for securing goods, bundling crops, towing, lifting, and storing agricultural products and livestock. Commonly used ropes include polypropylene, nylon, and UHMWPE ropes, which greatly enhance efficiency, safety, and cost-effectiveness in agricultural operations.

By using these ropes, you can improve productivity, ensure safer handling, and reduce operational costs.

corda di salvataggio

Rescue ropes are synthetic fiber ropes specially designed for emergency rescue missions. Engineered to perform in extreme conditions like fire rescues, high-altitude operations, swift water rescues, and industrial rescues, these ropes are known for their high strength, lightweight, heat resistance, and visibility.

Typically made from Kevlar, nylon, or polyester, rescue ropes significantly enhance rescue efficiency and ensure the safety of personnel. These ropes offer reliable performance, ensuring your team can operate safely and effectively in the most challenging environments.

Corda sportiva

Synthetic sports ropes are specifically designed for various activities and are made from materials like nylon, polyester, polypropylene, and UHMWPE. Common types include climbing ropes, jump ropes, water sports ropes, battle ropes, and funi del verricello.

These ropes are lightweight, flexible, and safer alternatives to steel cables, making them ideal for meeting your needs in both performance and safety.

Tipi di corda sintetica per classe di resistenza

Corda leggera

Light-duty synthetic ropes are made from materials like nylon, polyester, or polypropylene, designed for applications that don’t require high strength or durability. Typically ranging from 5 to 10 mm in diameter and with a strength of 200 to 3,000 pounds。

These ropes are perfect for lightweight tasks such as camping, gardening, DIY projects, transportation, and packaging. They offer flexibility and ease of use, making them a reliable choice for all your light-duty needs.

Corda per carichi medi

Medium-duty synthetic ropes strike a perfect balance between strength, durability, and versatility, filling the gap between lightweight and heavy-duty options. Made from materials like nylon, polyester, and polypropylene, they are perfect for applications such as anchoring small boats, lifting and towing cargo, and vehicle recovery.

With diameters ranging from 10mm to 20mm and strengths between 3,000 and 12,000 pounds, these ropes can be tailored to your specific needs. Choosing the right medium-duty rope ensures you get the reliability and performance essential for your tasks, enhancing safety and efficiency.

Corda per impieghi gravosi

Heavy-duty ropes are typically made from synthetic materials like UHMWPE, Kevlar, or nylon, offering exceptional strength, durability, and safety. They’re designed to withstand harsh environments and extreme forces, making them ideal for applications in marine, construction, mining, industrial, rescue, and military settings.

With diameters ranging from 20mm to over 200mm and strengths exceeding 12,000 pounds, these ropes deliver stable, long-lasting performance. Choosing heavy-duty rope ensures you have the reliability and safety needed for demanding tasks, helping you get the job done efficiently and securely.

Tipi di corda sintetica per colore

Corda tinta unita

Solid color rope refers to synthetic fiber rope dyed in a single, uniform color without any variations. Its high visibility, durability, and safety make it ideal for a range of applications, including mooring boats, towing, outdoor sports, and industrial uses.

Common materials include nylon, polypropylene, polyester, and UHMWPE. This rope not only enhances safety but also ensures reliable performance in demanding environments.

Corda bicolore

Two-tone rope is made from two colors of synthetic fibers woven or twisted together. This design enhances visibility, especially in low-light conditions.

Typically made from nylon, polyester, or polypropylene, it’s ideal for climbing, rescue operations, mooring, towing, and lifting. Its high visibility and strength make it a reliable choice for your safety and efficiency in various activities.

Corda multicolore

Multicolored rope is a synthetic fiber rope dyed in three or more colors. Its vibrant colors allow for unique weaving and knotting, making it not only visually appealing but also highly visible. This rope is primarily used for decoration, entertainment, and safety signaling.

Common materials include nylon, polyester, and polypropylene, ensuring durability and strength for your various needs. Whether you’re enhancing your space or improving safety, multicolored rope offers both style and functionality.

Domande frequenti

Quale tipo di corda è più resistente?

The strongest rope is UHMWPE（also called dyneema or Spectra） rope, which is eight times stronger than traditional wire ropes of the same weight.

 Made from Ultra-High Molecular Weight Polyethylene, it offers high strength, lightweight design, exceptional safety, and chemical resistance. This makes it ideal for maritime, military, vehicle rescue, climbing, and industrial applications, ensuring reliability and performance in demanding environments.

Che tipo di corda non si allunga?

Most ropes stretch to some degree, but UHMWPE and Kevlar ropes have very limited stretch, around 2-3%. This makes them ideal for applications requiring precise control, such as lifting, cargo transport, towing, and marine docking.

Quale tipo di corda è composta da singoli fili intrecciati tra loro?

Made by twisting fibers into strands, then twisting those strands together to form the rope is twisted rope. It typically has a spiral pattern and is usually made with three strands.

Quali sono i tipi più comuni di materiali per corde e i loro utilizzi?

The common rope materials in use are nylon, polyester, and polypropylene. They are cost-effective, perform well, and are versatile, making them ideal for a variety of applications like marine, Industrial, construction, arboricultureclimbing to meet your needs.

Cosa sono i materiali ad alto modulo?

High-modulus materials have a high elastic modulus, meaning they are extremely rigid and hard. Ropes made from these materials, like UHMWPE fiber (around 200 GPa) and Kevlar fiber (about 130 GPa), resist deformation under stress and offer excellent tensile strength and thermal stability.

They are perfect for demanding applications in marine, construction, military, and automotive sectors, providing customers with reliable performance and durability to meet their high standards.

Quale tipo di corda sintetica galleggia sull'acqua?

There are several types of synthetic ropes, like polypropylene, polyethylene, and UHMWPE, float on water because their specific gravity is less than 1, making them lighter than water.

Polypropylene Rope  Specific Gravity: 0.91 g/cm³ Polyethylene Rope     Specific Gravity: 0.91 g/cm UHMWPE Rope          Specific Gravity: 0.97 g/cm

Quali tipi di corde vengono utilizzate sulle navi?

Many types of synthetic fiber ropes can be used on boats, such as polyester, nylon, polypropylene, polyethylene, UHMWPE, and Kevlar (aramid) ropes. These can serve as mooring lines, tow ropes, rescue lines, winch lines, dock lines, and anchor lines.

La corda intrecciata è più resistente di quella ritorta?

Yes, braided rope is stronger and more durable than twisted rope. Its construction interweaves multiple strands, allowing for even weight distribution. This means it can handle greater force and reduces the risk of wear and breakage.

In contrast, twisted rope can wear out and break more easily due to its bends and twists. Choose braided rope for enhanced strength and reliability in your applications!

Che tipo di corda usare per legare una barca?

The most common ropes for tying up a boat are nylon and polyester rope. They are typically used for dock lines, mooring lines, and anchor lines.

Qual è il miglior tipo di cima di ancoraggio?

For most standard anchoring needs, polyester rope is considered the best choice due to its low stretch, durability, and low cost. Its performance and affordability make it popular among customers.

Conclusione

With the information provided, you should have a solid understanding about the types of  synthetic rope. We hope this helps you choose the right types of rope for your specific needs.

 A Duracordix, In qualità di fornitore di soluzioni in funi sintetiche ad alte prestazioni, offriamo anche soluzioni personalizzate e uniche per migliorare la vostra efficienza operativa e la vostra sicurezza, offrendovi la massima tranquillità. Grazie!