For a long time, in order to improve the strength and temperature resistance of the product, the use of glass fiber to enhance the modification of plastic has become a very good choice. A large number of facts have also proved the good performance of glass fiber. However, glass Fiber and plastic are two different materials. Naturally, there is a compatibility problem between the two.

The exposure of glass fiber (or floating fiber) is a direct manifestation of the compatibility of the two.

Glass fiber is divided into long fiber and short fiber in morphology, and it is white. Fiber addition is made by blending glass fiber and resin to granulate.

When the glue is injected, the flow of the material is similar to the flow of liquid. If there is a slight impurity in the injection molding, the material will stay like a river attached to the bank, thus forming the exposed glass fiber.

This is because the fluidity of glass fiber relative to plastic is much worse, and the flow of plastic in the abrasive tool flows forward from the middle of the sandwich, and the two sides are turned outward, so the best fluidity must be run to the mold. At the forefront, the bad ones will stay on the mold surface. At the same time, glass fiber has the effect of promoting crystallization, and PP (Polypropylene) and PA (Polyamide) are crystalline materials. The crystallization is fast and the cooling is fast; the cooling is fast, the glass fiber is difficult to be bound and covered by the resin, so that the glass fiber is easily exposed.

The point is here. Does the PP polypropelene glass fiber LGF 20 30 40 50 of the LFT-G process also have the problem of glass fiber floating? How to better avoid or solve it?

Let's discuss it in the next article.

Contact:Ms Amy / sale02@lfrtplastic.com