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Reaction Injection Molding (RIM) is a low molding pressure process for production of complex plastic parts directly from low viscosity monomers or oligomers. Two or more reactive streams A and B are combined by impingement mixing in a self -cleaning mix head (10 to 20 MPa) prior to enter the mold. Mold pressures are very low (less than 1 MPa). With this process parts can typically be demolded in less than one minute.

Polydicyclopentadiene (PDCPD for short) is a remarkable environmentally friendly new material in today's world. It is a polymer made from the purified dicyclopentadiene (DCPD) of petrochemical by-products C5 and C9 fractions, which is polymerized by metal-catalyzed olefinic decomposition reaction. Its production process is reaction injection molding, the whole process is exothermic reaction, energy consumption is very small, no waste water, waste residue in the molding process, emissions are almost zero, and the products can be harmless regeneration and utilization, to achieve a complete closure of the entire industrial chain, is a model of "green chemistry". PDCPD products not only have the flexible molding characteristics of thermoset materials, but also have similar performance characteristics with thermoplastic materials, which is described as "incredible" ductile materials. The material is light (specific gravity close to water), free design, not only has a high modulus of elasticity, but also has a very high impact resistance, high creep resistance, thermal stability, and outstanding corrosion resistance, weather resistance and paintability, is more suitable for the manufacture of construction machinery, agricultural machinery, trucks, automobile coverings, and sanitary ware, purification tanks, as represented by the integration of large-scale molding products. It is the ideal material to replace glass fiber reinforced plastic, some plastics, metal sheet metal parts, carbon fiber and alloy in the future, and is also the ideal choice for the lightweighting of equipment in new energy vehicles, wind power generation, unmanned aerial vehicles, tunnel templates, robots and many other emerging industries, with a wide range of applications, widely used in automobile manufacturing, construction templates, agricultural machinery, military, civil, medical, scientific research, national defense and other fields, with great potential and development potential. The market potential and development space is huge.

Polydicyclopentadiene PDCPD, a new material for automotive, I heard is very sought after these days? Such a turbulent dicyclopentadiene market, you have not paid attention? Cyclopentadiene, according to the content level is divided into fine bicyclic with more than 95% content and crude bicyclic with about 80-85% content. Crude Dicyclopentadiene is widely used in the production of modified UPR resins and DCPD petroleum resins. What is "Dicyclopentadiene"? Don't ask me why I guessed it: in fact, you don't quite understand what this "dicyclopentadiene" is? After reading the above industry trends, you guys have questions in your mind, don't you? Look, its structure is shown in the figure below:   "Dicyclopentadiene" (DCPD for short), also known as dimerized cyclopentadiene, is a dimer of cyclopentadiene produced by the Diels-Alder reaction, with two isomers, endo- and exo-. Dicyclopentadiene is mainly used in the production of unsaturated polyesters, dicyclopentadiene resins, hydrogenated dicyclopentadiene resins, RIM reaction injection molding, adamantine, tetrahydrodicyclopentadiene (high-energy fuels), linseed oil modification, cyclopentene, cyclopentanol, cyclopentanone, flame retardant, fragrances and so on. "Dicyclopentadiene" luxury upgrade: I call "Polydicyclopentadiene PDCPD". One of the important applications of "Dicyclopentadiene" is the synthesis of polydicyclopentadiene PDCPD, which is essentially a homopolymer or copolymer of dicyclopentadiene (DCPD). Polydicyclopentadiene is a three-dimensional network of crosslinked structure, is an "environmentally friendly", and very new engineering plastics. the early 80's, this excellent performance of thermoset engineering plastics for the first time by scientists to successfully prepare, and then, the world's different regions of the people have developed dozens of different properties of the product. Various kinds of parts can be made by reaction injection molding. Used as automobile parts, such as bumpers, buffer plates, instrument panels, fenders, etc., also used as sporting goods shells, chemical-resistant containers.   After entering the new century, the rapid development of the automotive industry, making people more and more concerned about how polydicyclopentadiene PDCPD is used in vehicles? Existing data show that PDCPD can be used in vehicle shells and other components instead of metal or glass fiber reinforced plastic, the advantages are: light weight, transit, assembly more labor-saving, and can reduce the labor intensity of workers on the production line, reduce vehicle fuel consumption and improve the vehicle load; investment is small, the production cycle is short, quick results; the vehicle shell can be realized in the appearance of the free design, so that it is more diversified, individualized; shell The shell can be designed freely, making it more diversified and personalized; the surface roughness can reach class A without any treatment before painting; the coloring, plating and anti-aging properties are excellent.  

Polydicyclopentadiene (PDCPD) is a new type of material in the field of polymer materials, known as "incredible" in Europe and the United States belongs to the high-end molding manufacturing new materials, which has the advantages of lightweight, high strength, physical balance, green environmental protection, industrial closure, is an ideal material to replace fiberglass reinforced plastic, traditional sheet metal parts, part of the plastic parts and so on. PDCPD material has both high impact strength and high bending modulus, belongs to elastic deformation-based ductile material, its products are lightweight, high strength, balanced physical properties, lightweight (specific gravity close to water), free modeling design, not only has a high modulus of elasticity, but also has a very high impact resistance, high creep resistance, thermal stability, and outstanding resistance to corrosion, insulation, weathering, and wave transmittance, and at the same time, has the following characteristics PDCPD-RIM formulations using tungsten-molybdenum catalyst system, the use of C9 fraction of DCPD, the production of PDCPD new material products with unique performance, comprehensive performance is better than Japan and the United States, focusing on the low price, good process performance, small deformation of the parts, environmental protection, raw material sources are not restricted, the current annual output of 100,000 tons of PDCPD-RIM combination of formula materials production base, the production of PDCPD-RIM combination of formula materials, the annual output of 100,000 tons. At present, the annual output of 100,000 tons of PDCPD-RIM combination formula material production base has been put into production, and realize the export to Europe, domestic and foreign customers reflect good.   Green Advantage: Dicyclopentadiene Injection Resin (DCPD-RIM) Production: It is a paste resin composed of cyclopentadiene olefin (DCPD) as the main raw material, assisted by polymer rubber, antioxidant, main and auxiliary catalysts, time regulator, etc. It consists of A and B two-component components, and all the added substances are in line with the international ROSH norms, and it does not contain any substances in the REACH SVHC list, and it complies with the national Occupational health requirements. PDCPD product production: DCPD-RIM is the raw material, without adding any other auxiliary materials, the molding process is reaction injection molding, the whole process is an exothermic reaction, and energy consumption is very small (only 1/4 to 1/2 of the energy consumption of plastic production). No water is involved in the production of the products, no waste residue is produced, and only trimmings and wastes are produced, so the emission is almost zero. The material is highly flame retardant (up to UL94-HB grade) and does not produce toxic or hazardous substances when burned, which is in line with the international "Banned Substances Program" specification. Edge waste can be harmlessly recycled, realizing the complete closure of the whole industrial chain, which is a model of "green chemistry", with the industrialized manufacturing embodiment of "fast, good and economical", and very much in line with the requirements of China's Carbon Dafeng Carbon Neutral Strategy and the new concept of sustainable development.   Advantage of energy saving: DCPD polymerization reaction is exothermic reaction, molding does not require high mold temperature; therefore, the processing of PDCPD products has very low energy consumption, and the energy required in the process of raw material preparation and molding is much lower than that of traditional plastics such as PC, PA, etc. According to statistics, the energy required for every 1 kg of PDCPD products is only 1/4 of that required for PP products of the same quality, and 1/10 of that for PC products. According to statistics, the energy required for producing 1 kg of PDCPD products is only 1/4 of that required for producing PP products of the same quality and 1/10 of that required for PC products; in terms of greenhouse gas emissions, according to the data of the relevant departments, the CO2 emission for every 1 kg of PDCPD products produced in 2008 was about 2.4 kg; it is expected that the CO2 emission for every 1 kg of PDCPD products produced in 2015 will only be about 1 kg. It is expected that in 2015, the CO2 emission per 1 kg of PDCPD products will only be about 1 kg. Using injection molding, CO2 emissions were as high as 7.2 kg per kg of ABS or PC produced in 2008, and although this is expected to decrease to about 4.1 kg in 2015, the total CO2 emissions are still four times higher than those of PDCPD products. The entire production process of PDCPD formulations and PDCPD products does not involve water, no waste residue is produced, and the emissions are almost zero, which greatly saves and water resources.   In terms of recycling: PDCPD's environmental friendliness is also reflected, PDCPD products can still be processed and crushed to granulate the waste, as thermoplastics such as PP, PE filler recycling, more effective recycling can be generated through anaerobic cracking of activated charcoal and fuel oil, to achieve 100% harmless recycling. In addition, when PDCPD products are used in transportation and other fields, they can reduce the weight of the body, thus greatly improving fuel economy, saving fuel and reducing emissions.

PDCPD (Polydicyclopentadiene) is indeed a highly attractive material for lightweight automotive bodies. It is a thermosetting polymer that possesses several advantageous properties, making it suitable for various applications, including automotive manufacturing. One of the key advantages of PDCPD is its high strength-to-weight ratio. It exhibits excellent mechanical properties, such as high tensile and flexural strength, along with good impact resistance. This makes it a desirable choice for lightweighting applications in the automotive industry, where reducing vehicle weight can lead to improved fuel efficiency and performance. Additionally, PDCPD is known for its excellent dimensional stability and resistance to corrosion, chemicals, and weathering. It can withstand harsh environmental conditions, making it suitable for automotive components exposed to extreme temperatures and outdoor elements. Furthermore, PDCPD has good flowability during the molding process, allowing for complex shapes and intricate designs to be easily achieved. It can be molded into various sizes and configurations, enabling manufacturers to create lightweight structures with integrated functionalities. The material also offers excellent surface finish and paintability, further enhancing its appeal for automotive applications. Given these advantages, it is no surprise that PDCPD has garnered attention as a promising material for lightweight automotive bodies. Its unique properties make it a viable option for reducing vehicle weight without compromising structural integrity or performance, thereby contributing to improved fuel efficiency and sustainability in the automotive industry.