(1172 products available)
Ready to Ship
Ready to Ship
Cross-linking polyethylene creates a more heat-resistant plastic, which is useful for electrical wiring insulation and higher-temperature applications. There are different types of XLPE cross-linked polyethylene that vary based on specific characteristics and intended applications.
High Voltage Cable Insulation:
This type of insulation is used on cables carrying high voltage, sometimes over 1000 volts. These cables are used in power transmission lines and substation connections. The cross-linking process makes the insulation material more stable and heat-resistant at high voltage. This makes it less likely to break down or allow electricity to jump through the insulation (known as dielectric breakdown) at high temperatures or when exposed to moisture. The cables can transmit electricity more safely and efficiently over long distances.
Low Voltage Cable Insulation:
These cables carry lower voltages, usually under 1000 volts. They are commonly used in residential and commercial power distribution. Cross-linked polyethylene is used for insulation because it is lightweight, flexible, and easier to manufacture. The insulation helps prevent short circuits or electric leaks, allowing power to flow safely to homes and businesses.
Heat Shrink Tubing:
Heat shrink tubing is a protective covering for wire connections that can be made smaller by applying heat. It is made from cross-linked polyethylene material. First, the tubing is slipped over the wire splice. Then, heat is applied using a heat gun. The tubing shrinks and tightly grips the splice. It also forms a waterproof seal to keep out moisture. This helps prevent short circuits or electric leaks.
Jacketed XLPE:
Jacketed cross-linked polyethylene has an extra outer layer (jacket) made of other materials like PVC or rubber. This additional layer provides more protection against physical damage, moisture, and chemicals. It helps shield the cable when it is installed underground or in tight spaces. This type is more durable and long-lasting.
Flame-Retardant XLPE:
Flame-retardant cross-linked polyethylene has chemicals added during manufacturing that help it resist catching fire. This is important for cables installed in buildings or other places where fire safety is crucial. The fire-resistant material slows down the spread of flames if exposed to high heat or sparks.
Non-Halogenated XLPE:
Non-halogenated cross-linked polyethylene does not have certain halogens like chlorine added during processing. Halogen-free materials are sometimes preferred for wire insulation because they are less harmful to the environment. This type poses a lower risk of producing toxic smoke during a fire.
XLPE cross-linked polyethylene (also known as PEX) is a thermoset polymer, meaning it cannot be remolded or reshaped after it has been formed. This property makes it useful for a wide range of applications, particularly in environments where heat resistance and durability are important. Below are some of its key features:
Chemical Resistance:
XLPE is chemically resistant and can withstand solvents, acids, and bases. This property makes it suitable for applications in harsh chemical environments, such as chemical storage tanks and containers.
High-temperature resistance:
Cross-linking polyethylene significantly increases its thermal stability compared to non-cross-linked polyethylene. Once cross-linked, the material can maintain its mechanical properties and structural integrity at higher temperatures (up to 1200C) for a longer period of time. This feature makes it an excellent choice for applications requiring higher processing temperatures, such as hot water distribution systems and radiant floor heating.
Dimensional Stability:
XLPE has low shrinkage and swelling, which provides dimensional stability. This stability is useful in applications such as insulation foams, where maintaining a consistent thickness and dielectric strength is important.
Mechanical Properties:
Cross-linked polyethylene has improved mechanical properties, such as tensile strength and impact resistance. This increased strength and durability make it suitable for applications subject to mechanical stress or impact, such as cable insulation and protective casings.
Shape retention:
Once shaped and cooled, XLPE retains its shape well. This feature is particularly beneficial for applications requiring precise components or parts that need to be installed without deformation.
Electrical Insulation:
XLPE is an excellent electrical insulator. Its cross-linking process improves dielectric strength, making it suitable for applications requiring electrical insulation, such as high-voltage cable coating and electrical component insulation.
Moisture Resistance:
Cross-linked polyethylene is hydrophobic and has low permeability to water and moisture. This feature makes it suitable for applications requiring water and moisture barriers, such as waterproof membranes and moisture-proof coatings.
UV Resistance:
Some formulations of cross-linked polyethylene can resist ultraviolet (UV) radiation degradation. This UV resistance allows the use of cross-linked polyethylene in applications exposed to sunlight and other UV radiation, such as outdoor lighting fixtures and exposed cable insulation.
The cross-linked polyethylene (XLPE) has a wide range of applications and industries. The following are some common usage scenarios of products made from XLPE:
Electrical and Electronics
XLPE is widely used in electrical power cables. It is used as insulation and sheath material in low, medium and high voltage cables. Its usage helps in improving electrical efficiency, reducing power losses and increasing operational safety.
It is also used in wire and cable applications. It acts as insulation for conductors in power cables, communication wires and electronic circuitry. Its cross-linking structure offers better thermal stability and higher current carrying capacity.
Building and Construction
XLPE foam is used in making insulated building products such as doors and windows. It is also used in insulated concrete form (ICF) applications.
It is also used in roofing applications. The closed-cell structure of the foam prevents water ingress and ensures structural integrity.
Electrical conduit and pipe: XLPE is used in making conduits and pipes for electrical wiring and plumbing. Its lightweight and durable nature ensures easy handling and better installation.
Automotive and Transportation
XLPE is used in automotive wire and cable insulation. Its lightweight and high-temperature resistance properties improve the safety and efficiency of vehicles. It is also used in making electric and hybrid vehicle components such as batteries, wiring harnesses and charging stations.
It is used in aerospace applications such as wiring insulation, fuel tanks and fire-resistant coatings. Its lightweight nature improves the overall weight and efficiency of the aircraft.
Consumer Electronics
It is commonly used in consumer electronics such as computer and laptop wiring, chargers and power adapters. Its efficiency and thermal stability improve the functionality and longevity of these devices.
It is used in making insulation for audio and video cables. Its smooth dielectric properties reduce signal loss and improve sound and picture quality.
Industrial Applications
XLPE is used in making insulated containers and tanks. It is also used in industrial pipe systems and insulation for hot and cold fluids.
It is used in making insulation for industrial machinery and equipment. Its efficiency reduces heat loss and improves operational efficiency.
Consider the application
The first thing to look at is the application itself. Different applications have different requirements. For example, power cables require cross-linking because it improves heat resistance. On the other hand, water pipes do not require cross-linking and can use straight polyethylene.
Consider the environment
Another thing to consider is the environment where the product will be used. Some environments have extreme temperatures. Others have high UV exposure or chemicals. These are important factors when choosing a polyethylene product because not all polyethylenes can withstand these conditions.
Consider the regulations
There are different regulations for different applications and environments. These regulations govern the use of different polyethylene products. It is important to know the applicable regulations before choosing a product. This ensures compliance and avoids legal issues.
Evaluate the performance requirements
Business owners should know the performance requirements of the application. This includes factors like temperature, pressure, and durability. Knowing these factors makes it easy to choose a polyethylene product that meets these requirements. Different polyethylene products have different performance capabilities.
Supplier reliability
Business owners should choose a reliable supplier with a good track record. They can ask for recommendations or do online research. A good supplier will provide quality products, technical support, and timely delivery. This will help to ensure a successful project.
Cost considerations
Business owners should not choose products just because they are cheap. They should consider the overall value. This means balancing cost and quality. A good product will have a good price and will also meet all the application requirements. Not meeting the requirements will result in failures, which will cost more.
Q1. What are the different types of cross-linked polyethylene?
A1. There are three main types of cross-linked polyethylene: Type I, Type II, and Type III. Type I is known for its high-temperature resistance and is commonly used in applications such as electrical insulation and high-voltage wiring. Type II has a higher degree of cross-linking, which provides improved mechanical properties and is often used in applications such as pipes and tanks. Type III has the highest degree of cross-linking and is characterized by its low-density and flexibility. It is commonly used in applications such as plumbing, heating, and cooling systems.
Q2. What are the disadvantages of cross-linked polyethylene?
A2. The main disadvantage of cross-linked polyethylene is that it is more difficult to recycle than non-cross-linked polyethylene. This is due to the cross-linking process, which creates a network of bonds that cannot be broken down easily. Additionally, cross-linked polyethylene is more rigid than non-cross-linked polyethylene, which can make it less suitable for certain applications that require flexibility.
Q3. What does cross-linked polyethylene look like?
A3. Cross-linked polyethylene looks similar to non-cross-linked polyethylene. It is usually white or translucent in color. However, cross-linked polyethylene has a more crystalline structure, which makes it more durable and resistant to wear and tear. It is commonly used in applications such as plumbing, wiring, and surgical implants.
Q4. How long do cross-linked polyethylene last?
A4. Cross-linked polyethylene (PEX) can last for a long time. PEX tubing used for plumbing and heating systems can last up to 50 years or more. PEX is known for its durability and resistance to corrosion, leaks, and frost damage. It has a high degree of cross-linking, which creates a network of bonds that makes it more stable and less prone to degradation over time.
浙公网安备 33010002000092号
浙B2-20120091-4