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Polyolefin Tubing

Polyolefin Tubing

In today’s world, whether in modern manufacturing, electrical engineering, or automation, the material performance, reliability, safety, and adaptability of tubing have become increasingly vital to smart manufacturing. Tubing has emerged as an indispensable precision protection material in modern manufacturing and electrical systems.

What is Polyolefin Tubing


Polyolefin tubing is a type of extruded plastic tube that shrinks in diameter when exposed to heat. Polyolefin is the most commonly used material for manufacturing heat shrink tubing due to its flexibility, resilience, and high resistance to environmental stress. 


Polyolefin heat shrink tubing, made from polyolefin as the base material, is a cross-linked modified polymer. Due to its thermal shrinkage, Polyolefin pipe can also be referred to as Polyolefin heat shrinkable tubing. After heating, it will shrink to 1/2 or 1/3 of its original diameter, tightly adhering to the coating.After cooling, polyolefins are formed protective layer that provides electrical insultation and strain relief, prevents moisture ingress, and aids in identification. 


Polyolefin shrink tubing has become increasingly important in the electrical industry today, and is used in various industries include wire protection, connector encapsulation, and busbar insulation.



Advantages and disadvantages of polyolefin shrink tubing


In protecting and insulating electrical and electronic components, polyolefin heat shrink tubing is a versatile and reliable solution. Let's explore some of its other advantages.


◆ High shrink ratio:Common shrink ratios include 3:1, 4:1, and 6:1, which allow polyolefin tubing to be more adaptable to a wider range of complex components.

◆ Chemical resistance

◆ Good mechanical properties 

◆ Low density, easy processing 

◆ Hygienic and safe

◆ Low maintenance costs


Polyolefin shrink tubing is not an all-purpose material and also has certain drawbacks that we need to pay attention to during use,Here are its disadvantages:


◆ Small temperature tolerance range 

◆ Limited pressure resistance

◆ Flammability at high temperatures

◆ Poor UV resistance

◆ Limited thermal shrinkage



Features and Funtions of Polyolefin shrinkable Tubing


Polyolefin shrink tubing is widely used. Due to varying demands for its flame retardancy and heat shrinkable behavior, Polyolefin hose is often categorized based on the following four typical and practical characteristic types: rigid, semi-rigid,flexible, and heat shrink.


Polyolefin tubing has different pipe types includ LDPE, LLDPE, PP,Ethylene Vinyl Acetate Copolymer can indeed be classified as rigid, semi-rigid, or flexible based on their physical properties.


Other properties available from polyolefin pipes


Remove heat shrink properties, the performance of polyolefin heat shrink tubing properties can be enhanced by adding relevant agents, depending on the application.


Flame retardants:With the addition of such modifying agents, the pipe exhibits a slower burning rate or self-extinguishes when exposed to a flame.


UV stabilizers:With the addition of such modifying agents, the pipe can be used outdoors for extended periods without significant aging.


Plasticizers:With the addition of such modifying agents, the pipe exhibits greater flexibility and is less prone to cracking in low-temperature environments.


Antistatic agents:With the addition of such modifying agents, the pipe’s surface resistivity is reduced, making it less prone to static charge accumulation.



Types of Polyolefin tubing


Polyolefin tubes can be categorized into various types through the addition of additives and adjustment of dimensional specifications. Let's explore three kinds mechanical properties.


Rigid Polyolefin tube type

Characteristics


This kind shrink polyolefin tube has High hardness, fixed shape, not easy to bend commonly was applied in Architecture and Infrastructure,Pipeline system manufacturing.



Physical properties of polyolefin tubing


Semi-rigid Polyolefin heat shrink tube type

Characteristics


This kind polyolefin pipe combines a certain degree of structural strength with flexibility, offering greater adaptability and a wider range of applications.


Application


automotive industry 

EADS

Electrical Engineering

Industrial Automation


Flexible Polyolefin tube type

Characteristics


Polyolefin flexible tube has the best heat-shrinkability and features soft and easy to bend and Cross-linking can enhance its temperature resistance, durability, and other properties.Flexible polyolefin shrinkable tubine is very suitable for applications requiring bending or movement as follows.



Application


Medical equipment manufacturing

Food and Beverage Industry

Laboratory equipment



These three common mechanical properties types that make the application and industry more extensive range of Polyolefin heat shrink Tubing.PVC tubing famliy also has a common type of heat shrink plastic tubing. How does its heat shrinkability compare to polyolefin tubing?Browse this article for more content.



Application of Polyolefin Tubing


Polyolefin heat shrink tubing is mainly used in the following industrial sectors according to its Excellent heat and weather resistance, chemical resistance, electrical insulation, and non-toxic, environmentally friendly properties.


 Electronics and Electrical Industry

◆ automotive industry 

◆ Industrial Automation

◆ Energy and Petrochemical Industry

◆ medical equipment

◆ Architecture and Infrastructure


The heat-shrinkable properties of polyolefin tubing are primarily used for electrical insulation, mechanical protection, sealing against moisture, and cable management. It is applicable across most industrial and electronics-related sectors.


Polyolefin Tubing application


Performance Characteristics of Different Types of Polyolefin Tubing


 PE Polyethylene Tube


PE (Polyethylene) Tube is a versatile and lightweight polyolefin tubing material known for its excellent chemical resistance and durability. It is commonly used in fluid transfer applications for water, air, and other non-aggressive fluids. 


PE tubing is flexible, easy to install, and offers good impact resistance, making it ideal for industries like agriculture, construction, and automation. Available in various sizes, 

PE tubes are an economical choice for both low-pressure and medium-pressure systems.


Polyethylene Tube


◆ LDPE Low Density Polyethylene Pipe


Low-density polyethylene,a very typical type of polyolefin material,also known as high-pressure polyethylene (LDPE), is the lightest variety of polyethylene resin, appearing as milky white, tasteless, odorless, non-toxic, and non-glossy waxy particles. 

It possesses good flexibility, elongation, electrical insulation, transparency, processability, and some degree of breathability. It exhibits relatively good chemical stability, being resistant to alkalis and general organic solvents.


Low Density Polyethylene Pipe


◆ LLDPE Linear Low Density Polyethylene Pipe


Linear low-density polyethylene (LLDPE) is formed by copolymerizing ethylene with a small amount of α-olefin, resulting in a molecular structure with very short copolymer monomer side chains attached to the linear ethylene main chain.

Linear low-density polyethylene is a milky white granule that is non-toxic, tasteless, and odorless, with a density ranging from 0.918 to 0.935g/cm3. 

Compared to LDPE tubing, it has a higher softening temperature and melting temperature, with advantages such as greater strength, good toughness, rigidity, heat resistance, and cold resistance. It also exhibits good environmental stress cracking resistance, impact strength, tear strength, and resistance to acids, alkalis, organic solvents, etc., making it widely used in industrial, agricultural, medical, sanitary, and daily life products.


Linear Low Density Polyethylene Pipe


◆ PP Polypropylene Tube


PP polypropylene has a lower heat deformation temperature (100°C), low transparency, low glossiness, and low rigidity, but it has stronger impact resistance. The impact strength of PP increases with the increase of ethylene content. The Vicat softening temperature of PP is 150°C. Due to its high crystallinity, this material exhibits good surface stiffness and scratch resistance.

Polypropylene tubing is non-toxic, corrosion-resistant, non-scaling, heat-resistant, and corrosion-resistant, with smooth inner walls and lightweight. They are mainly used in urban water supply, chemical industry, petroleum, chlor-alkali, pharmaceuticals, dyes, pesticides, food, metallurgy, electroplating, environmental protection, water treatment, and other industries.


Polypropylene Tube


◆ EVA Ethylene Vinyl Acetate Copolymer


EVA is an elastic polymer that can produce materials with softness and flexibility similar to rubber. This material exhibits good transparency, glossiness, low-temperature toughness, stress-crack resistance, hot-melt adhesive waterproof performance, and resistance to ultraviolet radiation. 

EVA has a distinctive vinegar-like odor and can compete with rubber and ethylene-based polymer products in many electrical applications. It is often used in the production of footwear, packaging materials, industrial products, medical devices, household items, sports equipment, and more.


Ethylene Vinyl Acetate Copolymer Tubing

Quality and Service


Fokca is one of polyolefin heat shrink tubing manufacturers in china and focus on "Focus on keeping customers ahead"keeping our customers ahead. We utilize high-quality raw materials and advanced, reliable manufacture technology. 


Whether you require special customized polyolefin tubing sizes and specifications, brand customization, or solutions for specific application scenarios, Fokca can meet your individual needs. Choosing Fokca means not only selecting excellent quality but also choosing reliable performance, offering assurance and peace of mind.For more information on polyolefin tubing, please do not hesitate to Contact us.

PE Polyethylene Tube
LDPE Low Density Polyethylene Pipe
LLDPE Linear Low Density Polyethylene Pipe
PP Polypropylene Tube
EVA Ethylene Vinyl Acetate Copolymer
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