The fiberglass needle felt is a kind of filter material with reasonable structure and good performance. The fiberglass is used as a raw material, and the stab is used for acupuncturing the combed short-cut glass fiber felt, and the felt layer glass fiber and the glass fiber are mechanically The felt-like glass fiber and the reinforcing fiberglass base fabric are intertwined with each other, and the fiber web is reinforced to form a felt-like nonwoven filter material.
Introduction
It not only has the advantages of high temperature resistance, corrosion resistance, dimensional stability, minimal elongation and shrinkage, and high strength of glass fiber fabric, but also the felt fiber is single-fiber, three-dimensional micro-porous structure, high porosity, and low resistance to gas filtration. It is a high-speed and high-efficiency high-temperature filter material. Compared with other high temperature resistant fiber mats, it has special advantages such as low price and higher temperature resistance, but its running resistance is higher than that of general chemical fiber high temperature filter materials.
Features
The glass fiber monofilament is disorderly interleaved and interlaced, showing a non-directional three-dimensional micro-porous structure with small voids, large gaps, and good sound absorption, shock absorption, corrosion resistance, insulation, high temperature resistance, and flame retardant properties. High porosity, low gas filtration resistance, large filtration wind speed, high dust removal efficiency, and resistance to bending, abrasion resistance, and dimensional stability. Glass fiber needle felts are mainly used for the manufacture of thermoplastic sheet molding compounds AZDEL and polypropylene sheets (GMT) Reinforced substrate. In the past, glass needles were mainly used for continuous needled felts. However, after repeated comparisons and material selection, it was considered that the use of glass fiber chopped needle felts had better processing performance than the use of continuous glass fiber needle felts, mainly in glass. When fiber chopped needle felt and polypropylene are compounded, the fluidity is better.
Main Features
- Excellent thermal insulation: According to the physical principle, the thermal conductivity of the gas is small, and there are many air holes inside the excellent thermal insulation material. The glass fiber acupuncture cotton has innumerable tiny gas, and the fiber presents irregular arrangement, it is an excellent heat insulation material, thermal conductivity coefficient is 0.2-0.040kcal/ mhr. c between.
- will not burn: the main component of glass fiber is silicide (more than 50%), non-flammable, no deformation, no embrittlement, high temperature up to 700 °C.
- sound absorption rate is good: When the sound waves invade the glass fiber cotton, the period of energy due to the friction with the fiber and the size of the cavitation, and a lot of inhalation. In general, the sound absorption rate is as high as 90% or more, which is a good way to prevent noise interference.
- high insulation: glass fiber can be high temperature, good mechanical properties, and high chemical stability, is the best insulation material.
- high corrosion resistance: glass fiber is not afraid of strong acid, strong alkali, long time will not reduce its functional characteristics.
- good recovery: glass fiber contains numerous fixed air pockets, excellent recovery. Not afraid of any shock and vibration, the tensile strength is more than 1.0kg.
- low moisture absorption: moisture absorption rate is usually close to zero.
- light and soft: Compared with other insulation materials, glass fiber needle felt the lightest and most flexible, if installed on the machine, can reduce its weight and vibration load.
- simple construction: size can be cut according to customers.