The application and preparation of glass fiber enhanced PP materials on cars

    With the continuous increase of the world's car ownership, a series of problems such as energy shortage and environmental pollution have become increasingly prominent. Energy -saving and environmental protection have become the two major problems in the world's automotive industry.

To cope with these issues, countries around the world have successively introduced strict fuel consumption and emission standards for passenger vehicle. Facing the huge challenge of energy conservation and emission reduction, how to reduce the energy consumption and alleviate the environmental pollution caused by it has become a problem that must be solved in the automotive industry.

    As one of the key technologies for solving this problem, "car lightweight" is an important development direction of modern automotive technology.

Lightweight of the car can not only reduce the load of power and power transmission systems, improve the power performance of the car, effectively reduce the braking distance, but also significantly improve the stability and comfort of the car. In addition, the lightweight design of the body has important practical significance for improving the economy, environmental protection and power performance of the car. Authoritative research shows that if the quality of the vehicle is reduced by 10%, its fuel efficiency can increase by 6%to 8%; when the quality of the vehicle is reduced by 100kg, the fuel consumption per 100 kilometers can be reduced by 0.3 to 0.6L, and the amount of carbon dioxide emissions can also be reduced. About 8 to 11g.

One of the important ways of automotive body lighting is the use of light and efficient composite components.

    The composite material is a new material that is better than that of two or more materials, which is better than the characteristics of its own material characteristics in a physical or chemical manner. Various materials have grown up and supplemented with each other, producing synergistic effects, making the comprehensive performance of the final molding composite material better than the original composition materials and meet various requirements.

At present, many manufacturers on the market use heat solid materials such as phenolic resin, epoxy resin, unsaturated resin or related injection molding products to make car -related components. Although this type of thermosetry material is small and hard in texture, it can solve the problems of lightweight, sound insulation and noise reduction, and reducing energy consumption to a certain extent. However, due to its own material characteristics It is not recycling, which is actually not good for the long -term development of the automotive industry.

    Therefore, a thermoplastic composite material (polypropylene, nylon, polyester, polyacheraxy, polycaetaldehyde, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystyrene, polystylindehyde, etc.) The forefront of the field.

Long glass fiber enhanced polypropylene composite materials (PP composite materials) as a very typical thermoplastic composite material, which has the advantages of good toughness, high strength, low density, long preservation period, recyclable and low price.

Long glass fiber enhancement PP products are a modified plastic material. This material is generally cylindrical particles with a length of 12 mm or 25 mm and a diameter of about 3 mm. In this particle, the glass fiber has the same length as the particles, and the content of glass fibers can ranging from 20%to 70%. The particle color can be scheme according to customer requirements. This particle can generally be used for injection and mold pressure process, which can produce structural or semi -structured parts. The fields of applications include automobiles, buildings, home appliances, electric tools, and so on.

    Application of the automotive industry: front -end framework, body door panel module, dashboard skeleton, cooling fan and framework, battery holder, etc. are used to replace enhanced PA or metal materials.

    Due to its widespread application surface, the research on the production process and performance of PP composite materials is particularly important. For different performance requirements, product structure, process characteristics and other conditions, the production requirements of PP composite materials are full of diversity.

    On the one hand, if general car -related components are produced: lower guards, seat skeleton, instrument panel, etc., PP composite materials need to provide products with high aesthetic performance and mechanical performance. On the other hand, if the production of a car engine bottom guard plate and other sound insulation parts, because the required parts can have a certain thickness and pore rate to ensure the noise reduction and sound insulation performance of the bottom guard, the PP composite material can to a certain extent to a certain extent Effectively control the pore rate and density of the product structure.

    Because thermoplastic composite materials are generally performed after heating, for different process characteristics, the heating temperature, equipment insulation temperature, equipment heating time, insulation time, and preheating temperature, preheating heating during the production process during the production process, preheating heating temperature, preheating thermal heating, preheating heating Time, temperature cooling control during production are full of changes.

    Therefore, for PP composite materials, the superior semi -finished production process and molding process are of particular significance for the production of the final product.

Due to the increasingly widely used application of polypropylene composite materials in the glass fiber fiber, it has potential in the direction of automotive lightweight research. The research work of product performance and mechanical characteristics related to car PP composite materials is also very important.

    Due to good impact resistance and energy absorption, PP composite materials are reasonably applied to important automotive parts such as forward collision beams and energy -absorbing boxes, and better stretching and curved performance can effectively improve the dashboard. The safety and reliability of car parts such as seat skeleton and tail boxes. The reasonable degree of density of plates and a large pore rate can enable the car engine bottom guard to obtain better sound insulation and noise reduction performance.