jinjiudingFrp

Mar 16, 2010 at 09:26 o\clock

There is a need for a FRP composite panel

by: jinjiudingfrp   Keywords: FRP

This invention relates to fiber reinforced polymer ( FRP), and more specifically, to lightweight fiber reinforced polymer composite decks for structural support systems and to a method of manufacturing said FRP grating . The lightweight FRP composite decks are composed of reinforced fibers and matrix resin, configured for infrastructure and constructed facilities such as elevated highway structures and wall and decking systems.

To accommodate some of the disadvantages with conventional construction materials, the prior art includes fiber reinforced polymer ( FRP) composite materials made with a honeycomb core and an outer skin. In addition, panels made of conventional FRP composite materials have lineal profiles mainly reinforced with continuous fibers in the axial direction.

There are several disadvantages associated with using such conventional FRP materials in structural panels. First, although conventional FRP composite materials are lightweight, they lack the required load-bearing capacity to handle high performance deck and wall structures. Therefore, conventional FRP composite materials are used only for light duty floor systems and building panels. Second, conventional FRP composite panels often develop moisture ingress and resin-dominated failure with respect to the honeycomb core and an outer skin. Third, the lineal profile and use of continuous fibers in the axial direction result in a reduced load bearing capacity.

Therefore, there is a need for a FRP composite panel that is lightweight, yet has a high load rating due to high strength to weight ratio. There is a further need for a FRP composite panel that has a long service life due to its resistance to corrosion. There is still a further need for a FRP composite panel that is easy and quick to erect and become operational.

There is also a need for a FRP manufacturer deck system that is lightweight, yet can withstand the heavy loads associated with highway bridges and decking systems. The FRP composite deck systems must also have a long service life and be prefabricated to allow for easy and quick installation.

Fiberglass reinforced plastic (FRP) paneling is a durable wall covering. During the FRP installation process, the panels must be cut to fit on the wall. The composition of FRP panels requires the use of special carbide tipped saw blades to perform the cut. Proper safety equipment is essential to guard against flying debris, cuts and inhaling the FRP dust.
Stretch the tape measure along the FRP sheet and place a mark along one edge of the FRP panel with the carpenter's pencil at the length you need to cut. Repeat the process to place a corresponding mark on the opposite edge of the FRP beam .

The present invention solves the problems associated with conventional structural panels by providing a fiber reinforced polymer ( FRP) composite panel. A FRP composite panel comprises a plurality of components, joined through a shear key system that provides an extensive bonding surface and a mechanical interlock. Each component is further comprised of a plurality of cells, each cell having four or more sides wherein at least two adjacent sides intersect at an obtuse angle, offset from ninety (90) degrees.

The fiber architecture of the components comprises multiple layers of multi-axial stitched fabrics, unidirectional rovings, woven cloth, and mats used as reinforcements. The fiber architecture develops fiber continuity between the cell components and provides adequate fiber reinforcement along main stress paths.

The cross sectional cellular shape and fiber architecture of the FRP ladder of the present invention provide distinct advantages over the prior art. First, the FRP composite panels of the present invention provide a lightweight, strong and durable structure that will not corrode like steel, spall like concrete, or rot like wood. Therefore, the panels of the present invention have a long service life and a reduced maintenance cost due to these fatigue and corrosion resistant properties.

Lay the FRP panel flat on a table that is large enough to support the entire length of the FRP panel.
Align the carbide circular saw blade with the chalk line that you snapped in the previous step, depress the trigger of the circular saw and slowly push the blade into the FRP panel.
Slowly push the carbide blade across the FRP panel, while keeping the blade aligned with the chalk line.
Place the sharp edge of the utility against the cut edge of the FRP, tilt the blade on a 15-degree angle and drag the knife along the cut to remove any burr remaining from the cutting process. Do not push the blade along the cut--this will damage the FRP panel .

Second, the FRP composite panels of the present invention have enhanced load bearing and interlocking capacity as compared to conventional FRP floor systems and building panes. The high load ratings are due to the high strength to weight ratio of the panels, resulting in a panel of the present invention having 3 to 4 times the load capacity of a reinforced concrete deck with only twenty percent (20%) of the weight. Further, stiffness of an FRP composite panel in the direction perpendicular to traffic is adequate to provide the transverse load distribution to supporting beams.

Third, the fiber architecture of the present invention is reinforced with heavy multi-axial stitched fabrics, continuous rovings woven cloth and mats resulting in superior mechanical properties as compared to existing FRP composite lineal profiles. In addition, the composite fiber architecture overcomes the problems associated to moisture ingress and resin-dominated failure observed in panels with honeycomb core and outer skins.

 

 

source:townhall|FRP gating

Mar 16, 2010 at 09:16 o\clock

This invention relates to fiberglass fabrics

by: jinjiudingfrp   Keywords: fiberglass, fabrics

A laminated fiberglass fabric composition is prepared by laminating a non-woven fabric to a knitted or woven fiberglass fabric with a plastisol laminating adhesive. Heat compressing the assembled materials envelops the individual fiberglass yarns with the non-woven fabric producing a fabric composition which is highly resistant to damage caused by severe twisting or flexing forces applied to the fabric. The use of a flame resistant laminating adhesive imparts flame resistant to these fabric compositions.

First, figure how much fiberglass cloth you will need and how quickly you need it. If you need only a small amount of fiberglass cloth to do a repair, (such as a boat patch or auto-body repair) you can buy this material at a local auto parts or boat supply store.
Figure out what kind of fiberglass cloth you will need. If it is a heavy-duty application, you will want a cloth that is over "24 oz". If it is for a light cosmetic repair, 8-12oz fiberglass fabrics will be suitable.

This invention relates to fiberglass fabrics. More particularly, it relates to a fiberglass fabric laminated so as to prevent or to at least substantially eliminate abrading of the individual fiberglass yarns against each other. This invention especially relates to fiberglass fabrics laminated with flame resistant materials so as to prevent or at least substantially eliminate abrading of the fiberglass fabric.

During the production of fiberglass filaments, a protective coating or sizing is applied to the individual filaments to reduce the tendency of the filaments to abrade when brought into close contact. A protective coating is also required during later processing when the fiberglass filaments are woven or knitted into fabric. However, this coating provides only a small measure of protection in the variety of end uses in which the fiberglass fabrics manufacturer are employed. Thus, when these woven or knitted fabrics are subjected to repeated twisting or flexing, the fiberglass yarns forming the fabric abrade and cut against each other often causing the fabric to fail.

Fabrics find a variety of uses in industry. Sensitive industrial equipment, such as computers, often require dust-proof wrappers and coverings during transit, storage and periods of prolonged down time to protect the equipment from damage which would necessitate costly repair. Fire resistant fabrics find use as fire wall blankets or in protective screening used during such processes as welding. Industrial clothing, such as uniforms, coveralls, jackets, coats and other protective coverings, are prepared from a variety of fabrics to provide protection to industrial workers from chemicals, fire and other industrial hazards. Although fiberglass fabric possesses properties such as high tensile strength, inertness and flame resistance which makes it a candidate for some or perhaps all of the above industrial uses, the individual fiberglass fibers tend to abrade against each other when subjected to flexing and twisting which can cause failure of the fiberglass fabric. This property detracts somewhat from its use as an industrial fabric.

So you figured out how much Fiberglass mat you need, and its more then a just small amount. Do an online search for "composite material suppliers", and visit the various websites that sell fiberglass.
Call the companies directly and compare costs. Be sure to ask for details on on fiberglass fabric weight, width of fabric, and shipping costs.

It is an object of this invention to provide a fiberglass fabric which will be highly resistant to damage from severe twisting or flexing of the fabric.

It is another object of this invention to provide a flame resistant fabric which will provide protection from high temperatures, molten metals, and open flames.

It is a further object of this invention to provide an industrial fabric which will provide long wear life when subjected to severe working conditions which often cause ripping and tearing of industrial clothing. In accordance with the present invention it has been found that a superior industrial fabric can be prepared by laminating a porous fiberglass fabric  with a platisol laminating adhesive and a non-woven fabric whereby the yarns in the fiberglass fabric are enveloped with non-woven fabric.

 

 

source:townhall|fiberglass