How to process 3D glass fabric?

The main process methods to laminate 3D fiberglass & carbon fiber fabric:

When the 3D fabric is impregnated with a thermo set resin ,the fabric absorbs the resin and rises to the preset height.

The Resin/fabric ratio 1:1.1, curing agent: 1.5-2%.

Mainly there are two ways of process we can laminate.

1.Hand Lay up

Step1: Apply 50% of the resin on the smooth surface of mold and distribute it evenly.

Step2: Apply the 3D fabric into the resin

Step3: Roll the fabric firmly but gently along the weft direction to secure a good contact with the resin underneath.

Step4: Evenly apply the remaining 40% of the resin over the fabric and distribute it evenly

Step5: Roll resin gently into the fabric. The capillary forces of the vertical piles will impregnate the fabric and rise into the preset height.

Step6: After cured ,a piece of 3D composite is formed.

2.Vacuum Infusion

Step1: Prepare mold and treat the surface with release agent      

Step2: Lay the fabric onto the mold

Step3: Place the peel-ply onto the fabric, then the infusion mesh,

finally the bagging film on the top.

Step4: Position the resin inlet and air outlet

Step5: Seal the whole bag

Step6: Connect the vacuum pump, creat a vacuum and test

Step7: Mix the resin with curing and other agent, and defoam

Step8: Infuse the mixed resin in vacuum condition

Step9: Once the fabric is fully impregnated with the resin, unseal the bag, let the air in, then the fabric will rise to the preset height

Step10: Product curing

Note:

1.These are main laminate process of 3D fabric,just for reference.

2.For different products and application, the process may be different.

3.The laminate process will depend on the design and technical requirements of final products.

What’s 3D fabric

3D fabric is a woven fabric with sandwich structure consists of two deck layers woven by warp & weft direction fibers and one Z direction fiber which interconnect both deck layers.

The weave pattern and thickness of the deck layers can be design for different technical requirement and use.And also the shape and length of Z direction fiber,which will decide the thickness,strength and other properties of the 3D fabric.

The 3D fabric can be woven with different fibers like E glass fiber,S glass fiber,Carbon fiber,Kevlar fiber and other fibers.(In the market,3D fiberglass fabric are the most been produced.We now produce Carbon fiber 3D fabric)

The thickness of 3D fabric can be 2mm to 30mm.The thickest is 30mm as our manufacture experience and what we know from the market.

It is mostly used for a core material which required light weight but high strength.And another application of 3D fabric is for a structure material used in double wall tank.