1.Good dimensional stability

Thermosetting resin matrix in the process of heat generated by cross-linking the formation of mesh structure, the product in the normal size of the stability of good, after the formation of the post-shrinkage is also small. Products in the long continuous load under the action of its shape and size changes are minimal, that is small creep. The creep performance depends on the size of the load, the temperature level and the length of the load time factors. Under fixed load and temperature conditions, the creep of thermosetting plastics is much smaller than that of thermoplastics after prolonged loading.

2. Excellent heat resistance, high temperature characteristics

Thermosetting resin-based composite material can not be softened after curing, and its products are quite stable heat resistance, with 1.86MPa load, generally its thermal deformation temperature in the 150 ~ 260 ℃, and fiber-reinforced thermosetting plastics are excellent insulation Material, the thermal conductivity is generally 0.35 ~ 0.47W / (mK), only the metal 1/100 to 1/1000, can be used as a good insulation and instantaneous high temperature materials, the material heat distortion temperature up to 350 ℃, can be used as room temperature and high temperature structural materials. Fiberglass / phenolic is a good thermal insulation material for rockets and missile engines.

3. Excellent electrical performance

Composite materials are excellent electrical insulation materials, if the mica as a filler products made of its electrical properties are more excellent, can be used to manufacture arc resistance, voltage resistance, induction of electrical superiority of special parts. As the composite material with excellent electrical properties, its products do not exist electrochemical corrosion and stray current corrosion, can be widely used in the manufacture of instruments, motors and electrical insulation components to improve the reliability of electrical equipment and extend its service life The In addition, the products under high-frequency effect of good dielectric properties and microwave permeability, has been used to manufacture a variety of radar hood and other high-frequency insulation products.

4. Excellent corrosion resistance

The resin-based composite material is different from the electrochemical corrosion mechanism of ordinary steel. It is not conductive and does not dissolve out in the dielectric solution. Therefore, it has good chemical stability for the atmosphere, water and general concentration of acid, alkali and salt. Nature, especially in the non-oxidizing strong acid and a wide range of ph value of the medium has a good stability. Therefore, it is widely used in the manufacture of corrosion-resistant products for the stainless steel can not deal with some of the media (such as hydrochloric acid, chlorine, carbon dioxide, dilute sulfuric acid, sodium hypochlorite and sulfur dioxide, etc.) corrosion, played a good role.

5. FRP pultruded profiles with good surface properties

Composite materials and chemical media in contact with the surface of the surface is generally very few corrosive, and rarely fouling, so commonly used in its manufacture of fluid pipelines, the pipeline resistance is very small, low friction coefficient, saving a lot of power. As the composite material is generally not like metal as easy to generate metal ion pollution media, so this is the food and pharmaceutical industry widely used in composite materials, the reason. In addition, the composite material has a high friction (pv) limit, in the water lubrication conditions, the friction coefficient is very small, about 0.01 ~ 0.03 or so, it is also the preferred material for wear-resistant products.

The above properties of the pultruded composite are used for mechanical structural parts, insulators, high frequency force parts and other functional structural parts.