What are the performance characteristics of Neweco resin-based composite materials? Whether it is Gumaron resin, liquid Gumaron or rubber alone, it has no adhesion. After compounding, it can make the rubber have good adhesion. The resin-based composite material serves as a A composite material is a solid product composed of two or more independent physical phases, including a matrix material (resin) and a reinforcing material.
Resin-based composite materials have the following characteristics:
1). Anisotropy (Short-cut fiber composite materials are isotropic);
2). Inhomogeneity (or discontinuity in structure and texture);
3). Viscoelastic behavior;
4). The volume content of fiber (or resin) is different, the physical properties of the material are different;
5). There are many factors that affect the quality, and the material properties are mostly dispersed.
The overall performance of resin-based composite materials is not a simple superposition or average of the performance of its component materials, which involves a problem of composite effects. The compound effect is essentially the result of the interaction, interdependence and complementarity between the original phase material and the interface it forms.
It is a linear and nonlinear synthesis of the performance of resin-based composite materials on the basis of its component materials. There are positive and negative recombination effects, and the improvement in performance is always expected, but it is inevitable that the performance of some materials after the recombination will offset or even decrease in some aspects.
There are various forms of compound effects, which can be roughly divided into two types: mixed effects and synergistic effects.
The mixing effect is also called the average effect, which is the result of the combination of the performance of the component materials and the complementation of the shortcomings. It is a general reflection of the relatively stable performance of the component materials and is sensitive to local disturbance reactions. Compared with the mixed effect, the synergistic effect is ubiquitous and diverse, reflecting various in-situ characteristics of component materials.
The so-called in-situ characteristics mean that the performance of each phase component material in the composite material is not only the performance when it exists alone, but the performance when it exists alone cannot characterize the performance of the composite material.
The research on thermoplastic resin matrix composites in China began in the late 1980s and has achieved rapid development in the past decade. The output reached 120,000 tons in 2000, accounting for about 17% of the total output of resin matrix composites. The matrix materials used are still Mainly PP and PA, reinforced materials are mainly glass fiber, and a small amount is carbon fiber. There is no major breakthrough in thermoplastic composite materials, and there is still a gap with developed countries.
The reinforcement materials used in resin-based composite materials are mainly glass fiber, carbon fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, etc.
Therefore, it is widely used in high-performance composite parts in the aerospace field (such as rocket engine shells, aircraft engine compartments, fairings, rudders, etc.), ships (such as aircraft carriers, nuclear submarines, yachts, lifeboats, etc.), automobiles (such as Tire cords, high-pressure hoses, friction materials, high-pressure gas cylinders, etc.) and heat-resistant conveyor belts, sports equipment, etc.