Composite Insulation Paper

Diamond Dotted Paper Insulating Tube
Rigid, oil-permeable transformer DDP paper tubes wound from diamond dotted paper (DDP). Epoxy dot-bonded structure for lead sleeving, winding cores, interlayer barriers and short-circuit...
read more
Transformer Oil Duct Spacer Sticks
Rigid pressboard oil duct spacer sticks for oil-immersed transformers. Precision-cut thickness, width and length to create stable winding oil ducts. Custom sizes.
read more
NHN Insulation Paper for motor
Professional manufacturer of insulation paper
Thickness：0.15mm
stretch strength：120N/10mm Width
read more
DMD Insulation Paper For Transformer
DMD Insulation Paper is a flexible composite insulation material
Breakdown voltage: 6-18kv
stretch strength：130 N/10mm
read more
Insulation Fish Paper For Motor
Thickness range: 0.1mm to 1.5mm
Fish Paper is a material made of high-density insulating fiber paper
read more
Insulation Oil Duct Strip For Motor
Insulation Oil Duct Strip For Motor is an insulating component used to support the internal oil channel structure of the transformer
read more
Insulating Aramid Paper
Thickness: 0.1mm -0.25mm
Thermal stability: 180°C
read more
Aramid Paper For Cable
Aramid paper is mainly made of aramid fiber (Aramid fiber) processed into a paper-like structure through a specific process. The most famous brand is DuPont's Nomex®.
read more
Insulated Aramid Paper
Low dielectric loss: Improves device energy efficiency
can adapt to high temperature environments and ensure long-term stable operation of the equipment
read more
Aramid Paper For Transformer
Type:aramid paper
read more
Aramid Paper for winding
Thickness:0.13mm-0.50mm
read more
Aramid Honeycomb Panels
ACT1 commercial grade aramid honeycomb is manufactured from Nomex® paper (or equivalent) and coated with a heat resistant phenolic resin (MIL-R-9299). ACT1 is available as blocks, sheets, or...
read more

First 12 3 4 5 Last

What is Composite Insulation Paper?

Fiber composite insulation combines the advantages of strength and density with excellent insulating properties. In addition, it provides high resistance to chemicals, heat and fire. Composites are an evolving group of engineering materials with high potential.

How long is the shelf life and service life of Composite Insulation Paper?

Shelf life of Composite Insulation Paper

Insulating cardboard is a special cardboard used in the power industry with excellent insulation performance and mechanical strength. It is made of high-quality insulating paper and epoxy resin glue. However, insulating cardboard is also affected by various factors such as time and environment, and will gradually age and lose its insulation performance.
Therefore, the shelf life of insulating cardboard is generally about 3 years. If the shelf life is exceeded, the insulation performance of the insulating cardboard will gradually decrease, affecting the normal operation of power equipment. Therefore, before using the insulating cardboard, it should be inspected according to the production date and shelf life. If it exceeds the shelf life, it must not be used again.

Service life of Composite Insulation Paper

In addition to the shelf life, the service life of insulating cardboard will also be affected by many factors, such as the use environment, working conditions, etc. Under normal circumstances, the service life of insulating cardboard can reach more than 10 years.However, when using insulating cardboard, the following points need to be followed:

DMD composite electrical insulating paper in roll

Avoid external damage:

Insulating cardboard is susceptible to external damage. Once damaged, the service life of the insulating cardboard will be significantly shortened, or even unusable. Therefore, during transportation, storage and use, care should be taken to avoid external damage to the insulating cardboard.

Regular inspection

: Regularly inspect the performance and status of the insulating cardboard to ensure that its insulation performance and mechanical strength meet the requirements. And be prepared to replace the insulating cardboard according to changes in service life and use environment.

Electrical Insulation Flexible Composite DMD

Characteristics of composite insulation paper

Insulation composite paper has excellent electrical insulation. Its dielectric constant is very low, and its inherent dielectric strength enables it to maintain excellent electrical insulation under high temperature, low temperature and high humidity conditions. The insulation paper prepared with it can withstand a breakdown voltage of up to 40KV/mm, which is a globally recognized insulation material.

Insulation composite paper has an impressive flame retardancy. Usually the oxygen content in the air is 21%, while the limiting oxygen index of aramid 1313 is greater than 29%, which is a flame-retardant fiber, so it will not burn in the air, nor support combustion, and has self-extinguishing properties. This inherent characteristic derived from its own molecular structure makes aramid 1313 flame retardant, so it is known as "fireproof fiber".

Insulation composite paper has long-lasting thermal stability-high temperature resistance. It can be used for a long time at a high temperature of 220℃ without aging. Its electrical and mechanical properties can be maintained for 10 years, and its dimensional stability is excellent. At about 250℃, its thermal shrinkage rate is only 1%; it will not shrink, brittle, soften or melt even if exposed to a high temperature of 300℃ for a short time; it will not start to decompose until it reaches a strong temperature of more than 370℃; it will not start to carbonize until it reaches about 400℃. Such high thermal stability is rare in current organic heat-resistant fibers.

Insulation composite paper has outstanding chemical stability. Its chemical structure is extremely stable, and it can resist corrosion from most high-concentration inorganic acids and other chemicals, and resist hydrolysis and steam corrosion.

Insulation composite paper has excellent mechanical properties. Its flexible polymer material, low stiffness and high elongation characteristics make it have the same spinnability as ordinary fibers, and it can be processed into various fabrics or non-woven fabrics by conventional spinning machines. It is also wear-resistant and tear-resistant, and has a wide range of applications.

Insulation composite paper has super radiation resistance. It has excellent resistance to α, β, x-rays and ultraviolet radiation. After being irradiated with 50Kv x-rays for 100 hours, the fiber strength still remains 73% of the original, while the polyester or nylon has already turned into powder.

Key Points For The Storage Of Composite Insulating Paper

Anti-folding and staining. Try to store it in a special transparent film bag. For damaged products, place it flat in a book and press it with heavy objects. It will be flat after a few days. For uneven paper products, avoid using electric irons to flatten them, and try not to use chemical agents such as potassium permanganate.

Anti-insect. The key to avoiding insect infestation is to keep paper products dry and ventilated. For long-term stored paper products, they should be read regularly, which can not only ventilate them, but also check whether they have changed. For areas with serious rodent infestation, pay attention to prevent rat bites.

Anti-fading. The key to preventing it from fading is to avoid exposure to the sun. It will fade to varying degrees after a long period of storage, which is directly related to the quality of paper and ink. Paper products should not be cleaned with alkaline or acidic liquids, otherwise they will fade.

Fire prevention. It is particularly important to pay attention to fire prevention. Generally speaking, paper products must be kept away from fire and power sources, and should not be placed together with flammable and explosive items. Once a fire occurs, the consequences will be disastrous.

Anti-mildew. The key to preventing mildew is moisture-proof. The suitable temperature for storing paper products is 18C to 20℃, and the suitable humidity is 50% to 60%. Therefore, when cleaning paper products, avoid high temperature or humid weather. Once moldy, wipe it gently with soft paper or cloth. For severely moldy banknotes, soak them in milk and dry them.

Certifications

Our Factory

With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.

Our Advantage

Capital advantage

With a healthy financial position and excellent asset quality, it can attract capital through banks, bonds, equity financing and other forms, and has good resource acquisition advantages.Introduction

Scale advantage

The production capacity ranks among the best in the industry, with strong supply guarantee capabilities and high market share.

Variety advantage

All leading products are serialized, with complete varieties and specifications, and wide application fields. We can develop special varieties according to market and user needs.

Market Advantage

It has an advanced sales team and sales network system in the industry, with excellent dealers and large customer resources. It has established a domestic sales network that focuses on product application and focuses on various professional areas, radiating the national market and covering Europe, America, Asia and Africa. overseas marketing network.

Our Partner

The products are exported to East of Asia, North of Europe ,The Mid East, South of American, Egypt and East of Africa，and are matched by more than 600 domestic transformer and transformer manufacturers, and are well received by users at home and abroad.

productcate-1920-342

FAQ

Q: What is composite insulation paper?

A: Composite insulation paper is an engineered material consisting of cellulose fibers reinforced with synthetic materials like glass or polyester fibers. This combination enhances its mechanical and thermal properties compared to traditional paper.

Q: How does composite insulation paper compare to standard insulation materials in terms of temperature resistance?

A: Composite insulation paper typically exhibits better temperature resistance than standard paper, maintaining its integrity up to 200°C or higher, depending on the specific formulation.

Q: How good is paper as an insulator?

A: As the thermal conductivity of paper is low, we can conclude that paper is a good insulator. Paper reduces the convection, conduction and radiation of heat and therefore it is a good insulator of heat.

Q: What is paper insulation used for?

A: Insulation paper is a thin, flexible, high-temperature material used in industrial processing applications where heat management is critical. It provides thermal protection up to 3000°F (1600°C) and is easily adaptable to complex equipment geometries.

Q: Can composite insulation paper withstand exposure to chemicals and solvents?

A: Yes, many composite insulation papers are resistant to oils, acids, alkalis, and other chemicals, making them suitable for harsh industrial environments.

Q: Is the paper on insulation a vapor barrier?

A: What is the difference between unfaced and Kraft-faced insulation and how is it installed? Unfaced means the insulation lacks a vapor retarder (paper or plastic facing). Kraft-faced insulation includes a paper vapor retarder, which helps prevent mold and mildew.

Q: How does moisture affect the performance of composite insulation paper?

A: Moisture can reduce the dielectric strength and thermal resistance of composite insulation paper. High-quality papers may include water-repellent treatments to minimize this effect.

Q: Why is insulation paper used in motors?

A: Insulating paper has high tear strength, low elongation, and good insulation, so it is widely used as an insulating material in motors, cables, capacitors and transformers. It is also the main component of insulating materials such as laminates, composites and prepregs.

Q: Can composite insulation paper be used outdoors or in UV-exposed environments?

A: Some composite insulation papers are treated to resist UV degradation and can be used outdoors, while others may require protective coatings or wrapping to extend their service life.

Q: What is insulation paper made of?

A: Cellulose Insulation Material
Cellulose insulation is made from recycled paper products, primarily newsprint, and has a very high recycled material content, generally 82% to 85%. The paper is first reduced to small pieces and then fiberized, creating a product that packs tightly into building cavities.

Q: What are the common applications of composite insulation paper?

A: Composite insulation paper is commonly used in motor and generator windings, transformer bobbins, coil insulation, and as a backing material for magnet wire.

Q: Why is toilet paper a good insulator?

Q: What factors influence the choice of composite insulation paper for a particular application?

A: Factors influencing the choice include operating temperature, voltage level, mechanical stress, environmental conditions, and cost.

Q: Is the paper on insulation a vapor barrier?

Q: How does the cost of composite insulation paper compare to traditional paper insulation?

A: Composite insulation paper generally costs more than standard paper insulation due to its superior performance characteristics and the cost of reinforcement materials.

Q: Why is there paper on the back of insulation?

A: Which Way to Face Insulation
The facing paper on the insulation blocks moisture from condensing (changing from a vapor to a liquid) on the insulation. If installed incorrectly, moisture can become trapped between the facing and cause mold, rotting, and reduced R-value.

Q: Can composite insulation paper be repaired or patched if damaged?

A: Small tears or damage can sometimes be repaired with an appropriate adhesive or patch material, but extensive damage may require replacement.

Q: Which way should the paper face on insulation?

A: Kraft-faced insulation should be installed in exterior walls, exterior basement walls, and attic ceilings by pressing the product into the wall cavity with the paper side facing outward, towards the installer. The insulation should be snug in the cavity, but not compressed.

Q: What research and development trends are shaping the future of composite insulation paper technology?

A: Research is focused on improving its performance at higher temperatures, enhancing its environmental friendliness, and developing new reinforcement materials to further increase its durability and insulating properties.

Q: How does the tensile strength of composite insulation paper compare to regular paper?

A: Composite insulation paper typically has a higher tensile strength due to the added synthetic reinforcement.

As one of the leading composite insulation paper suppliers in China, we warmly welcome you to wholesale high-grade composite insulation paper made in China here from our factory. All our products are with high quality and competitive price.