01 Domestic Studies on Enhanced PP PP
As a new type of composite material, the development of thermoplastic composite materials originated in the 1980s, mainly divided into long fiber enhanced granular materials (LFP), glass fiber felt enhanced thermoplastic composite materials (GMT) )Wait.
my country's research on thermoplastic resin base composite materials started relatively late. It started in the late 1980s. In the mid -1990s, the country began to list the research and application of GMT composite materials as national -level high -tech. Planning project.
Since 2003, many domestic research institutes, scientific research units and enterprises have started research on the research work of GMT board preparation. Or get practical application.
In general, my country's research in the field of thermoplastic composite materials has not yet achieved significant breakthroughs, and there is still a certain gap with developed countries.
02 The development status of long glass fiber enhanced PP
As the most widely used thermoplastic resin base composite material, the development of glass fiber enhanced polypropylene composite materials has also reached a very high stage of maturity. The main is the GMT composite materials in the three types. In the 1980s, it developed. Nowadays, industries and industries, such as aerospace, construction, automobiles, medical care, chemical electronics, etc. are widely used.
In 1999, the American AZDEL company developed a new type of SuperLite light GMT board, marking the real launch of lightweight GMT boards. In 2003, Switzerland also produced a light -quality GMT board with consistent performance -Symalite board. Then, in 2005, Owens-Coming (Owinsco) also announced its company's light GMT board.
At present, GMT materials with the highest quality and best quality on the market are mainly produced by these three major companies. The development of my country's GMT materials is relatively late, and it still lags behind such developed countries in basic materials, process methods, and equipment development.
In addition, as nanotechnology gradually attracted people's attention, the research and development of composite materials related to nanotechnology has also become a research hotspot in the new era. With nano -technology modified matrix resin, the crystallization form and aggregation of the substrate resin can be changed to a certain extent, so that it can produce new performance, which can effectively overcome the contradictions of the toughness and rigidity of traditional materials. Greatly improve the comprehensive performance of materials.