Glass fiber varieties use (3) - fiberglass mat

Fiberglass mat

(1) fiberglass chopped strand mat cut the glass precursor (sometimes with roving) into a 50 mm long, randomized but evenly laid on the web, followed by an emulsion binder or a powdery powder After curing and curing into a short cut original silk felt. The fiberglass chopped mat is mainly used for hand lay-up, continuous plate making and mold pressing and SMC processes. The quality requirements of the fiberglass chopped strand mat are as follows: (1) uniformity along the width direction; (2) the chopped strand is evenly distributed in the felt surface without the formation of large pores and the binder is evenly distributed; (3) Of the resin infiltration and penetration.

(2) continuous raw silk mats will be formed in the process of drawing the original silk or from the original drum out of the continuous wire was 8-shaped paved in the continuous mobile mesh belt, the powder binder bonded. Continuous fiberglass filament fiber in the fiber is continuous, so the composite material to enhance the effect of shorter cut felt good. Mainly used in the pultrusion method, RTM method, pressure bag method and glass felt reinforced thermoplastic (GMT) and other processes.

(3) The surface of the fiberglass reinforced plastic products usually need to form a rich resin layer, which is generally used in the alkali glass surface felt to achieve. This kind of felt is made of alkali glass (C), so it is resistant to FRP chemical resistance, especially because it is thin, fiberglass diameter is smaller, it can absorb more resin to form resin-rich layer, cover Live glass fiber reinforced materials (such as grid cloth) lines, play a role in surface modification.

(4) Needle felt felt needles or chopped into chopped fiber needle felt and continuous raw silk needle felt. Chopped fiber needle felt is shortened to 50mm fiberglass roving, randomly placed in the pre-placed on the conveyor belt on the substrate, and then with a barbed needle for acupuncture, the needle will be chopped fibers into the substrate In the crochet and some of the fiber up to form a three-dimensional structure. The substrate used may be a dough fabric of glass fiber or other fibers, which has a fluffy feel. Its main uses include insulation materials for insulation, lined with hot material, filter material, can also be used in the production of glass fiber reinforced plastic, but the glass fiber reinforced plastic strength is low, the use of limited. Another type of continuous raw silk needle felt, is a continuous glass raw silk throwing device with a random throw on the continuous network, the needle plate acupuncture, the formation of fiber interlocking three-dimensional structure of the felt. This felt is mainly used for the production of glass fiber reinforced thermoplastic palleable sheet.

(5) suture felt chopped glass fiber from 50mm or 60cm long can be sewn sewing machine into a chopped fiber or long fiber mat, the former can be used in a number of applications instead of the traditional binder bonded chopped mat, The latter to a certain extent, instead of continuous silk carpets. Their common advantage is that they do not contain adhesives, avoid contamination of the production process, while impregnating, combining good performance and low prices.

Hebei Yuniu Fiberglass manufacturing Co., Ltd. 

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