The changing process of the manufacturing materials of the overall shower
First generation shower room, made of FRP material
FRP (Fiber Reinforced Plastics), the scientific name is "Fiber Reinforced Plastics", and the more intuitive name is "Fiber Reinforced Plastics". This is a new type of composite material, which is composed of fiber material and matrix material mixed in a certain ratio, extruded and drawn through special molds. Since FRP does not require a large press when it is made, various shapes can be made according to practical needs, and it is very suitable for use in Japan with a small living area. It is widely used in household shower rooms of Japanese users.
Benefits: This material has the characteristics of corrosion resistance, fatigue resistance, non-conductive, less recycling, lighter than steel, and high strength. In the early use of the overall shower room, it does have an advantage. As early as 1974, my country Eastern Group produced my country's first FRP integrated shower room. The production process is formed by wet resin, which requires simple equipment and low cost. FRP products are basically made by hand lay-up.
Defects: FRP integrated shower room made by hand lay-up method has the disadvantages of low degree of mechanization, long production cycle and unstable quality. In addition, FRP has poor anti-aging performance and has a service life of about ten years. The quality of the material is not delicate and cannot meet the requirements of high-end customers.
Current situation: With the advancement of China's construction industrialization, the hand-laying method of making FRP integral shower rooms can no longer get used to China's requirements for "low-carbon construction" and quality control systems; and people are becoming more and more personalized in the overall shower room. High, FRP materials are gradually unable to get used to the development of overall shower room operations in China; as more new materials and new skills continue to emerge, a generation of overall shower room products has gradually faded in the market.
The second generation integral shower room, made of SMC material
SMC (Sheet molding compound), the scientific name "sheet molding compound", is an unsaturated polyester resin material and also a kind of glass fiber reinforced plastic. The main material is composed of GF (special yarn), UP (unsaturated resin), low shortening additives, MD (filler) and various additives. Through heating and pressure, the molten sheet molding compound is evenly covered in the cavity of the template. , And then through a period of time of heating and curing, curing and forming. SMC products appeared in Europe in the early 1960s. Later, the United States and Japan successively improved this process.
Benefits: SMC materials have excellent electrical functions, corrosion resistance, simple engineering planning, good mechanical functions, and can be used for large-scale industrial production; especially the construction work has always been based on the implementation of factory equipment, which makes SMC's plates integrated The characteristics are fully utilized and can replace traditional skills. SMC products are made through high temperature and high pressure, so the product has a high degree of anti-aging. Even if it is used in a steam, high temperature and humid bathroom environment, the product life span theoretically reaches 20 years. As an integral shower room, the necessary waterproof and leak-proof parameters can be guaranteed , Has significant advantages.
Defects: Since SMC is an upgraded product of FRP, it is essentially a plastic composite material, and it has inherent shortcomings: for example, the appearance is plastic, the touch is empty, and it is particularly not resistant to pollution from materials such as washing powder and toilet cleaner. The sense of quality is not high, and it is impossible to get used to the needs of customers with higher requirements such as star hotels and general household appliances. Also, due to the mold binding, the degree of personalization is low, the panel is not very decorative, and the bathroom cannot be opened, nor can it be nailed to hang things. At the same time, because the mold has been fixed, it cannot be customized according to customer needs, resulting in a waste of utilization area.