What is the difference between fiberglass roving and spinning Is the production equipment the same

It should be differentiated according to the density of the fiber bundle.

Fiberglass untwisted roving (GB T 18369-2008) is revised with reference to BS EN 14020 "Reinforcement materials - Specification for glass fibre untwisted roving". "Fiberglass Untwisted Roving (GB T 18369-2008)" replaces GB T 18369-2001 "Fiberglass Untwisted Roving". Compared with GB T 18369-2001, the main contents of "Glass Fiber Untwisted Roving (GB T 18369-2008)" are as follows:

The application performance of glass fiber untwisted roving is subdivided, which is divided into weaving, jetting, pultrusion, molding compound, winding, chopped and other glass fiber untwisted roving according to the application performance; The breaking strength index value of glass fiber untwisted roving was improved; The requirements for the application performance of fiberglass untwisted roving have been increased.

Alkali-free 6 microns, 9 microns untwisted roving (expanded yarn raw yarn); 80 alkali-free and 30 twisted yarns; Medium alkali 21 ...Operation, scientific research and development in one of the glass fiber integrated production enterprises. The company has advanced production equipment and strong technical force.

It mainly produces 30 and 40 alkali-free glass fibers, with an annual production of 1,500 tons, and there are two kinds of paraffin type and silane type.

Let's open it. I've been doing this for two years. You can find me.

Production is increasing year by year.

Fiberglass roving is made from bundles of parallel precursors or parallel monofilaments. According to the composition of glass fiber, glass fiber roving can be divided into: alkali-free glass fiber roving and medium alkali glass fiber roving.

The diameter of the glass fibers used in the production of glass fiber roving is 12-23 m. Fiberglass roving can be directly used in some composite process forming methods, such as winding, squirting pultrusion, because of its uniform tension, it can also be woven into roving fabrics, and in some uses, roving is further shortened.

From the perspective of production capacity setting, the output of glass fiber roving in China accounts for about 70%-75% of China's glass fiber output, and with the elimination and adjustment of glass fiber roving production capacity in recent years, this proportion is continuing to decline. From 2012 to 2019, China's glass fiber industry developed rapidly, and the output of glass fiber roving increased year by year, and in 2019, China's glass fiber roving output reached 10,000 tons, an increase compared with 2018.

Note: The glass fiber output data comes from the China Glass Fiber Industry Association, and the glass fiber roving production or Kai volume data is calculated by the Prospective Industry Research Institute according to the output ratio. )

Imports and exports fluctuate.

From the perspective of import volume, from 2012 to 2019, China's glass fiber roving import volume showed a trend of first increasing and then declining. In 2015, China's glass fiber roving imports peaked at 10,000 tons, and then the glass fiber roving imports fluctuated and declined, falling to 10,000 tons in 2019, a decline from 2018. From January to May 2020, China's glass fiber roving import volume was 10,000 tons.

From 2012 to 2018, China's glass fiber roving export volume fluctuated and increased, increasing to 10,000 tons in 2018. In 2019, affected by the adjustment of production capacity, China's export volume of glass fiber roving declined, only 10,000 tons. From January to May 2020, China's glass fiber roving export volume was 10,000 tons.

The market demand is gradually expanding.

Glass fiber roving is mainly used in traditional construction, transportation, wind power and other fields. In recent years, with the continuous development of the downstream field, the demand for glass fiber roving in China has also been growing. From the perspective of apparent consumption (= output + import volume - export volume), from 2012 to 2019, the apparent consumption of glass fiber roving in China basically showed a trend of increasing year by year.

In 2019, the apparent consumption of glass fiber roving in China was 10,000 tons, an increase from 2018.

**Volatility declines.

From 2012 to 2020, the average of glass fiber roving in China has been fluctuating between 4,000 yuan ton and 6,000 yuan tons. In May 2020, the mainstream of the glass fiber roving market in Chiyao remained stable, and the transaction situation did not change much. In addition, the export side is still subject to certain restrictions, the short-term demand side is still dominated by the domestic trade market, the mainstream product 2400tex winding direct yarn ** to maintain 4000-4200 yuan tons, glass fiber roving average ** at about 4100 yuan ton.

1. The material is different.

Glass fiber is an inorganic non-metallic material with excellent properties. It is glass balls or waste glass as raw materials that go through high-melting, drawing, winding, weaving and other processes to finally form glass fibers. Carbon fibers are inorganic fibers made up of the element carbon.

The carbon content of the fiber is greater than 90%. Generally, it is divided into three categories: ordinary type, high-strength type and high-model type.

2. The characteristics are different.

High tensile strength of glass fiber; High elasticity coefficient; High impact strength; chemical resistance; Low water absorption; Good heat resistance; There are many types of processed products; Transparent colloid.

Carbon fiber is a new type of material with higher strength than steel, less density than aluminum, more corrosion resistance than stainless steel, high temperature resistance than heat-resistant steel, conductivity like copper, and electrical, thermal and mechanical properties. Compared with glass fiber (GF), Young's modulus is more than 3 times that of it, and it is insoluble or swollen in organic solvents, acids and alkalis, and has outstanding corrosion resistance. 3. **Different.

Fiberglass is much cheaper than carbon fiber.

4. Different uses.

Glass fiber is mainly used to make reinforced plastic polyculture, and the reinforced plastic made of glass fiber makes glass fiber far more widely used than carbon fiber.

Carbon fiber is mainly used in high-end fields, and can be used as aircraft structural materials, electromagnetic shielding and de-energizing materials, artificial ligaments and other body substitute materials, as well as in the manufacture of rocket shells, motor boats, industrial robots, automotive leaf springs and drive shafts. Carbon fiber is widely used in civil, military, construction, chemical, industrial, aerospace and supercar fields.

Glass fibers are generally classified according to the composition of glass raw materials, monofilament diameter, fiber characteristics, fiber appearance, etc. Glass fibers include ply untwisted roving, direct untwisted roving, chopped precursor, untwisted roving, glass fiber felt, friction material, continuous glass fiber, etc.

1. Classification of glass raw material composition: generally distinguished by different alkali metal oxide contents.

1) Alkali-free fiber (commonly known as E glass): R2O content is less, is an aluminoborosilicate component. Its chemical stability, electrical insulation properties, and strength are very good. It is mainly used as electrical insulating material, reinforcing material of FRP and tire cord.

2) Medium alkali fiber: The content of R2O is a soda-calcium silicate component, because of its high alkali content, it cannot be used as an electrical insulating material, but its chemical stability and strength are good. Generally, it is used as latex cloth, checkered cloth substrate, acid filter cloth, window screen substrate, etc.

2) High alkali fiber: glass composition with R2O content equal to or greater than 15%. For example, glass fiber is drawn from broken flat glass, broken bottle glass, etc. It can be used as waterproof and moisture-proof materials such as battery isolation sheet, pipe wrapping cloth and felt sheet.

2. Classification by monofilament diameter: glass fiber monofilament is cylindrical, and the thickness can be expressed by diameter.

1) Coarse fiber: the diameter of its monofilament is generally 30um

2) Primary fiber: its monofilament diameter is greater than 20um;

3) Intermediate fiber: monofilament diameter 10-20um

4) High-grade fiber: (also known as textile fiber) its monofilament diameter is 3-10um.

3. Classification by fiber characteristics: fiber high-strength glass fiber; high-modulus fiberglass; High temperature resistant fiberglass; alkali-resistant fiberglass; acid-resistant fiberglass; Ordinary glass fiber (refers to alkali-free and medium-alkali glass fiber); optical fibers; Low dielectric constant fiberglass; conductive fibers, etc.

The difference lies in the alkali resistance of the glass fiber used, and there are very few high-alkali glass fiber products in China, and the worst is medium alkali. Because the glass itself is not alkali-resistant, anti-alkali ingredients are added to the glass fiber products when processing, and zirconium dioxide is generally added, so that the glass fiber has a certain tolerance to -OH.

The mesh cloth produced by using alkali-resistant glass fiber is the alkali-resistant mesh cloth, and the same is true for others.

Fiberglass cloth is mostly used in industry, and recently civilian products can also see its traces, it is drawn by high temperature hot melting, forming a filament, and then weaving, now there is a drawing process and a centrifugal process. According to the use, there are long filaments and short filaments. If you look at the fiberglass cloth carefully, there are tiny needle-like crystals, which should be pricked.

But the braid made with the centrifugal process is smooth and does not prickle the hands. Fiberglass cloth is soft, outstanding physical and chemical properties, water resistance, flat paste, good coverage, I have no experience in decorating the wall, theoretically speaking, it should be good, after brushing the paint, the texture of the fabric is very prominent, there is a different style.

Glass fiber alkali-resistant mesh cloth is based on medium alkali or alkali-free glass fiber woven fabric, and is treated with alkali-resistant coating. The product has high strength, good adhesion, conformability and excellent positioning, and is widely used in wall reinforcement, exterior wall insulation, roof waterproofing, etc., and can also be applied to the reinforcement of cement, plastic, asphalt, marble, mosaic and other wall materials, and is an ideal engineering material in the construction industry. Glass fiber alkali-resistant mesh cloth is based on medium alkali or alkali-free glass fiber woven fabric, and is treated with alkali-resistant coating.

The product has high strength, good adhesion, conformability and excellent positioning, and is widely used in wall reinforcement, exterior wall insulation, roof waterproofing, etc., and can also be applied to the reinforcement of cement, plastic, asphalt, marble, mosaic and other wall materials, and is an ideal engineering material in the construction industry. Compared with ordinary alkali-free and medium-alkali glass fibers, alkali-resistant glass fiber has its remarkable characteristics: good alkali resistance, high tensile strength, strong corrosion resistance in cement and other strong alkali media, and is an irreplaceable reinforcing material in glass fiber reinforced cement products (GRC).

Alkali-resistant glass fiber is the substrate of glass fiber reinforced cement (GRC), with the deepening of wall reform and economic development, GRC has been widely used in building interior and exterior wall panels, insulation boards, air duct boards, garden sketches and art sculptures, civil engineering and other purposes. It is possible to make some products and components that are difficult to achieve or incomparable with reinforced concrete. It can be used for non-load-bearing, secondary load-bearing, semi-load-bearing building components, decorative parts, agricultural and animal husbandry facilities, etc.

Alkali-resistant glass fiber mesh cloth is made of medium alkali and alkali-free glass fiber mesh as the base material, and is made by post-treatment of acrylic copolymer glue, which has high strength, alkali resistance, excellent acid resistance, strong adhesion with resin, soluble in styrene, stiffness, and excellent positioning, and is mainly used for cement, plastic, asphalt, roofing, and wall reinforcement materials. It is mainly used for GRC pre-paving, coating or mechanized molding, especially suitable for on-site construction of exterior wall insulation projects.

1. The definitions are different.

Glass fiber mesh cloth is a series of glass fiber mesh cloth products woven with medium alkali or alkali-free glass fiber yarn and coated with alkali-resistant polymer emulsion. Alkali-resistant glass fiber mesh cloth is based on medium alkali or alkali-free glass fiber woven fabric, treated by alkali-resistant coating, the product has high strength, good adhesion, conformability, excellent positioning, and is widely used in wall reinforcement, exterior wall insulation, roof waterproofing, etc.

2. The function is different.

The alkali-resistant glass fiber mesh cloth is the reinforcing material of the external wall insulation surface layer, which is mainly used to improve the mechanical strength of the surface layer, ensure the continuity of the resistance of the finishing layer, disperse the shrinkage pressure and thermal insulation stress of the surface layer, avoid stress concentration, and resist the cracking of the surface layer caused by natural temperature and humidity changes and accidental impacts.

Exterior wall insulation mesh cloth is a new type of alkali-resistant product made of medium alkali or alkali-free glass fiber yarn as raw material, woven into glass fiber mesh cloth as the base material, and then dried by acrylic acid copolymer solution. The product has the characteristics of stable structure, high strength, good alkali resistance, anti-corrosion, anti-cracking, etc., the best enhancement effect, and the construction is simple and easy. 3. The characteristics are different.

The glass fiber mesh cloth has good chemical stability. Resistant to alkali, acid, water, cement corrosion, and other chemical corrosion; It has strong adhesion to resin, soluble in styrene, etc. High strength, high modulus, light weight.

Good dimensional stability, stiffness, flatness, not easy to shrink and deform, good positioning. Good impact resistance. Resistant to mildew and insects.

Fire prevention, heat preservation, sound insulation, insulation.

Compared with ordinary alkali-free and medium-alkali glass fibers, alkali-resistant glass fiber has its remarkable characteristics: good alkali resistance, high tensile strength, strong corrosion resistance in cement and other strong alkali media, and is an irreplaceable reinforcing material in glass fiber reinforced cement products.

Alkali-resistant glass fiber mesh cloth is made of medium alkali and alkali-free glass fiber mesh as the base material, and is made by post-treatment of acrylic copolymer glue, which has high strength, alkali resistance, excellent acid resistance, strong adhesion with resin, soluble in styrene, stiffness, and excellent positioning, and is mainly used for cement, plastic, asphalt, roofing, and wall reinforcement materials. Comments 0

With now everyone's life is getting better and better, so we are more and more demanding for products, fiberglass mesh cloth is one of them, I believe you should have some contact with it in life, but there is not a lot of understanding about it, so, let's take a look at the glass fiber mesh cloth environmental protection today? How to identify the quality of fiberglass mesh fabric? Let's find out.

I hope it can help everyone.

Is fiberglass mesh cloth environmentally friendly.

Fiberglass mesh cloth is a new type of fiberglass cloth that is only about ten years old. The pollution of glass fiber mesh cloth to the environment in the process of gluing and drying is particularly serious, and our factory is developing a new type of mesh cloth positioning method to reduce environmental pollution and make real environmentally friendly products.

How to identify the quality of fiberglass mesh fabric?

1 The worst fiberglass mesh cloth market ** is usually about 1 00 yuan 1 60 yuan, his glass fiber is usually made of some beer bottles of waste glass, the production process is clay crucible drawing, which is a production process prohibited by the state, and the surface coating is not alkali-resistant emulsion. Intuitively: the workmanship is relatively rough, generally sold more in the market, often insufficient length, insufficient gram weight, broken twice, the contact is not firm and easy to shift, and easy to stab.

This kind of mesh cloth is used in the insulation layer generally loses its strength after two months, if the mortar is knocked off and the mesh cloth is taken out, as long as it is gently crushed, the glass fiber yarn will become powdery.

2 There is also a kind of mesh cloth called imitation platinum glass fiber mesh, also called mixed yarn. This is a kind of imitation of better glass fiber, but it is usually some flat broken glass with good transparency in the selection of waste glass, and the fiber diameter is relatively fine. It is sometimes difficult to judge its authenticity on the surface, but its quality does not meet the requirements of the real alkali-resistant mesh cloth in the external insulation of the exterior wall in any case.

3. The standard type of mesh cloth with good quality is made of platinum glass fiber as the base material, which is more particular in the selection of materials and the process of weaving. The emulsions used are all good alkali resistance. Excellent alkali resistance and high warp and weft tensile strength make the product have a good feel and good construction compliance, and greatly reduce the amount of plastering mortar.

4 The scope of use of alkali-resistant glass fiber mesh cloth in external thermal insulation system:

a Exterior wall insulation is usually used: 3 3 45 grams, 5 5 80 grams.

b. Exterior wall panel insulation system used: 5 5 130 grams, 5 5 145 grams.

c. Exterior wall adhesive powder particle system used: 5 5 160 grams.

d Exterior wall tile finishes or insulation up to two metres: 3 7 10 300 g.

The above introduction of all the knowledge about whether the glass fiber mesh cloth is environmentally friendly and how to identify the quality of the glass fiber mesh cloth can help you. Is fiberglass mesh cloth environmentally friendly. This material is not environmentally friendly, so when you choose, you should pay attention to the quality of the problem, and choose a good product so that it will not cause some harm to the human body.