Glass fiber is an organic substance, which itself is not harmful to the human body. But fine fiberglass dust is breathed into a person's lungs. Because glass cannot be absorbed and decomposed at all, it will form deposits for a long time, which will cause occupational diseases similar to silicosis. Although the damage is not fatal, it will affect people's respiratory function. Contact dermatitis often occurs in glass fiber workers, and a few people Skin sensitization occurs, but the fibers themselves have not been proven to be allergens so far.
If it's just pure skin contact, there are generally no other problems, the main reason is that it irritates the skin to a certain extent.
The opposite of Glass fiber is an inorganic non-metallic material with excellent performance. There are many kinds. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. It is made of glass balls or waste glass through high-temperature melting, wire drawing, winding, weaving and other processes. The glass fiber is often used as reinforcing material of composite material, electrical insulation and heat insulation materials, substrate and other national economy fields.
Our company has been engaged in the glass fiber industry for more than ten years, and has rich experience and high-quality products. Welcome to contact us by email@example.com
Glass wool is a plate-shaped product that is processed by centrifuging molten glass into fibers and solidified by adding an environmentally friendly formula binder based on thermosetting resins. The slender glass fiber has a low thermal conductivity and can trap air well, thereby playing the role of thermal insulation, sound absorption and noise reduction, and safety protection. The glass wool board series has the characteristics of tight and firm material, smooth surface and strong pressure resistance, and the appearance is more crisp and beautiful after installation.
Glass wool can be mainly used in: roof insulation, cold insulation, sound-absorbing materials; building insulation, cold insulation; entertainment venues, theaters, TV stations, radio stations, laboratories, sound-absorbing treatment; air-conditioning pipeline freezing and heat insulation of refrigerated warehouses.
It can be processed into glass wool felt according to actual needs, saving space, reducing costs and avoiding unnecessary waste.
The sound absorption characteristics of centrifugal glass wool are not only related to thickness and bulk density, but also related to factors such as cover material and structural structure. In construction applications, it is also necessary to take into account many aspects such as cost, appearance, fire prevention, moisture resistance, dust resistance, and aging resistance.
In large spaces such as gymnasiums and workshops, in order to absorb and reduce noise, sound-absorbing bodies with centrifugal glass wool as the main sound-absorbing material are often used. Sound-absorbing bodies can be made into plates, columns, cones or other special-shaped bodies according to requirements. , The sound-absorbing body is filled with centrifugal glass wool, and the surface is wrapped with a sound-transmitting surface layer. Since the sound-absorbing body has multiple surfaces for sound absorption, the sound absorption efficiency is very high.
In the road noise barrier, in order to prevent noise reflection, it is necessary to take sound absorption measures on the side facing the vehicle, and centrifugal glass wool is often used as the filling material, and the surface layer is a barrier plate made of perforated metal plate. In order to prevent glass wool from absorbing water and getting damp outdoors, it is sometimes wrapped with PVC or plastic film.
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Fiberglass is an inorganic non-metallic material with excellent performance. It is made of pyrophyllite, quartz sand, limestone, dolomite, boro site, and boro site as raw materials through high-temperature melting, wire drawing, winding, weaving, and other processes. The diameter of the monofilament is several microns to twenty microns, which is equivalent to 1/20-1/5 of a hair, and each bundle of fiber strands is composed of hundreds or even thousands of monofilaments. Fiberglass is usually used as reinforcing materials in composite materials, electrical insulating materials and thermal insulation materials, circuit substrates, and other fields of the national economy.
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Main features of glass fiber
Melting point: glass is a kind of amorphous, with no fixed melting point, it is generally considered that its softening point is 500~750℃
Boiling point: about 1000 ℃
Density: 2.4~2.76 g/cm3
When fiberglass is used as a reinforcing material for reinforced plastics, the biggest feature is its high tensile strength. The tensile strength is 6.3 to 6.9 g/d in the standard state and 5.4 to 5.8 g/d in the wet state. Good heat resistance, no effect on strength when the temperature reaches 300 ℃. It has excellent electrical insulation, is an advanced electrical insulation material, and is also used for thermal insulation materials and fire shielding materials. Generally only corroded by concentrated alkali, hydrofluoric acid, and concentrated phosphoric acid.
Compared with organic fibers, fiberglass has higher temperature resistance, non-combustibility, corrosion resistance, good heat insulation, and sound insulation, high tensile strength, and good electrical insulation. These characteristics make the use of glass fiber far more extensive than other types of fibers, and the development speed is also far ahead.
(1) High tensile strength and small elongation.
(2) High elastic coefficient and good rigidity.
(3) The amount of elongation within the elastic limit is large and the tensile strength is high, so the absorption of the impact energy is large.
(4) Fiberglass is an inorganic fiber, which is non-flammable and has good chemical resistance.
(5) Low water absorption.
(6) The dimensional stability and heat resistance are all good.
(7) Good processability, can be made into different forms of products such as strands, bundles, felts, and woven fabrics.
(8) Transparent and permeable to light.
(9) Good adhesion to resin.
(10) The price is cheap.
(11) It is not easy to burn, and can be melted into glass beads at high temperatures.
NANJING EFG, https://www.china-fiberglass.com/, is a dynamic, creative, experienced, and responsible team. Everyone on the team is committed to providing the best products and services to our customers. Our company has developed a wide range of fiberglass which are tested extensively before leaving the factory to ensure quality. As a professional manufacturer, we specialize in manufacturing the highest quality fiberglass. We have conducted a large number of tests before leaving the factory to ensure the quality. You can consider using our cost-effective products. Thank you for your time!
Fiberglass is not made of glass.
Glass fiber is made of pyrophyllite, quartz sand, limestone, dolomite, boronite, and boronite as raw materials through high-temperature melting, wire drawing, winding, weaving and other processes. Its main components are silica, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide, etc. According to the alkali content in the glass, it can be divided into alkali-free glass fibers (0% to 2% sodium oxide, which belongs to aluminum Borosilicate glass), medium-alkali glass fiber (sodium oxide 8% to 12%, which belongs to boron-containing or boron-free soda-lime silicate glass) and high-alkali glass fiber (more than 13% sodium oxide, which belongs to soda-calcium silicate glass) silicate glass).
Fiberglass is an inorganic non-metallic material with excellent performance. There are many kinds. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. Difference. The diameter of its monofilament is several microns to more than 20 microns, which is equivalent to 1/20-1/5 of a hair, and each bundle of fiber precursors is composed of hundreds or even thousands of monofilaments. The glass fiber is often used as reinforcing material of composite material, electrical insulation and heat insulation materials, substrate and other national economy fields.
Fiberglass insulation is one of the most popular ways to keep your home warm. Since it's inexpensive, easy to find, and very dense, you can't go wrong with padding your walls. However, it's very squishy, so you might be a little confused about how to cut it. This is a very abrasive material that requires a sharp blade and some safety gear such as a dust mask and glasses. However, with some basic techniques, you can cut insulation board safely and efficiently.
Measuring insulating materials
Choose a piece of plywood that is at least as wide as the fiberglass board. Place it on a flat surface so there is enough room to spread out the fiberglass. The plywood doesn't have to be too big, just make sure it fits underneath the part you're cutting. [
Choose a sturdy piece of material, such as a piece of old plywood
You can put plywood on the floor for protection.
Avoid cutting bare surfaces such as concrete.
Wear cut-resistant gloves and other protective clothing. Fiberglass insulation is skin irritating, wear long pants and a long-sleeved shirt. Then, put on gloves, and some also wear disposable coveralls to prevent the insulation from spreading onto their clothing.
If part of your skin is exposed, apply some baby powder on it. The powder prevents glass shards in the insulation from sticking to the skin.
Wear a dust mask and safety glasses for protection. A regular N95 cloth dust mask will do just fine, if the mask you're using doesn't cover your eyes, buy separate glasses. Wear safety gear whenever cutting insulation.
The dust released by the insulation is harmful and can aggravate breathing problems such as asthma.
If you can, work outside so that dust doesn't settle in your home.
Unroll the insulating paper face down. Fiberglass insulation is rolled into a roll. Place the roll over the edge of the plywood. Then, push it through the plywood. Spread out just enough to make the cut you want to make.
Most insulation has a paper backing on one side. It's usually easier to cut the paper last, and the backing keeps the insulation clean when you unroll it.
Use a tape measure to determine where you will cut the insulation. Start by measuring where you plan to install the insulation. Plan to cut the insulation 1 inch (2.5 cm) larger than the insulation on all sides. Because fiberglass insulation is flexible, it can be tucked into tight places. The extra length will help it stay in place.
Mark the measurements on the insulator with a permanent marker. Use a tape measure to transfer the measurement to the insulator. Measure along both sides of the insulation, making small marks to indicate where you plan to cut.
If you roughly cut the insulation to approximate size, you don't need to take any additional measurements. If your goal is a precise cut, you can use a piece of sawdust to make a straight cut in most cases.
Fiberglass veil is mainly used as electrical insulation material, industrial filter material, anti-corrosion, moisture-proof, heat insulation, sound insulation, shock-absorbing material, and can also be used as reinforcement material. Fiberglass veil is used more widely than other types of fibers to make reinforcement Plastic, fiberglass veil or reinforced rubber, reinforced gypsum and reinforced cement and other products. Fiberglass veil coated with organic material glass fiber can improve its flexibility, used to make packaging cloth, window screen, wall cloth, covering cloth, protective clothing And insulation, sound insulation materials.
What are the classifications of glass fiber yarn?
Roving, roving fabric (ripstop), fiberglass mats, chopped strands and ground fibers, fiberglass fabrics, combined fiberglass reinforcements, fiberglass wet-laid mats. Author: Zhenjiang Anzhidun Fireproof Cloth https://www.bilibili.com/read/cv15256416/ Source: bilibili
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