Glass fibre-reinforced polymer matrix composites are important engineering materials, they are the most widely used composites globally, mainly because of their weight savings in combination with excellent specific stiffness and strength.
Polyamide 6 (PA6)with 30% Glass Fibre(GF) is one of the most used polymers due to the benefits it brings such as quality, improved mechanical characteristics, high operating temperature, abrasion strength, recycling, and others. they provide ideal materials for processing electric tool shells, electric tool components, engineering machinery accessories, and automobile accessories.
However, these materials also have drawbacks, such as The processing methods are often injection molding. the fluidity of fiber-reinforced nylon is poor, which easily leads to high injection pressure, high injection temperature, unsatisfactory injection, and radial white marks appearing on the surface, The phenomenon is commonly known as “floating fiber”, which is unacceptable for plastic parts with high appearance requirements in the injection molding process.
While, in the production process of injection molded products, lubricants cannot be added directly to solve the problem, and generally, it is necessary to add lubricants in the modified formula on the raw material to ensure that the glass fiber reinforcement is properly injected molding.
Silicone additive is used as a highly effective processing aid and lubricant. Its silicone active ingredient improves filler distribution in filled formulations and the flow properties of the polymer melt. This increases extruder throughput. It also reduces the energy needed for compounding, Generally, the dosage of silicone additive is 1 to 2 percent. The product is easy to feed with a standard system and is readily incorporated into polymer mixtures on a twin-screw extruder.
The use of silicone additive in PA 6 with 30% glass fiber has been found to be beneficial in a variety of applications. By reducing the amount of fiber revealed on the surface of the material, silicone additives can help to create a smoother finish and improve flow. Additionally, they can also help to reduce warping and shrinkage during manufacturing as well as reduce noise and vibration during operation. thus, silicone additives are an efficient method for manufacturers looking to improve their products.
Developing Strategies to Minimize Polyamide 6 PA6 GF30 Glass Fiber Exposure
SILIKE Silicone Masterbatch LYSI-407 is widely used as an efficient additive for PA6-compatible resin systems to improve the processing properties and surface quality, such as better resin flow ability, mold filling & release, less extruder torque, lower coefficient of friction, greater mar and abrasion resistance. One thing to highlight helps to solve Glass fiber exposure problems in PA6 GF 30 injection molding.
Post time: Jun-02-2023
