Polypropylene, referred to as PP, is a polymer made of propylene through the addition polymerization reaction. It is a white waxy material with a transparent and light appearance. The chemical formula is (C3H6)n, the density is 0.89~0.91g/cm3, it is flammable, the melting point is 164~170ºC, it softens at about 155ºC, and the use temperature range is -30~140ºC. It can resist the corrosion of acids, alkalis, salt liquids and various organic solvents below 80ºC, and can decompose under high temperature and oxidation. Polypropylene is a thermoplastic synthetic resin with excellent properties. It is a colorless, translucent thermoplastic lightweight general-purpose plastic with chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high-wear resistance processing properties. , widely used in the production of clothing, blankets and other fiber products, medical equipment, automobiles, bicycles, parts, transportation pipelines, chemical containers, etc., and also used in food and pharmaceutical packaging
1. In Europe, it is mainly used as parts for automobiles and electrical appliances, various containers, furniture, packaging materials and medical equipment, followed by films and injection products.
2. China mainly uses polypropylene as a material in food packaging, household items, automobiles, optical fiber and other fields. The largest areas of use of polypropylene in China are woven bags, packaging bags, strapping ropes and other products. Another major consumption area is film, accounting for about 20% of total consumption, mainly BOPP (biaxially oriented polypropylene film). The market development prospects of special materials such as high-speed drawing BOPP films, pipes, thin non-woven fabrics, and highly transparent food containers are good.
3. Polypropylene has good mechanical properties and can be directly manufactured or modified to manufacture parts of various mechanical equipment, such as manufacturing industrial pipes, agricultural water pipes, motor fans, basic templates, etc. Modified polypropylene can be molded into bumpers, anti-scuff strips, car steering wheels, instrument panels and interior decoration parts, etc., which can greatly reduce the weight of the car body and save energy.
4. Modified polypropylene can be used to make insulating shells of household appliances and washing machine liner, and is widely used as insulation materials for wires, cables and other electrical appliances. It has high gas barrier properties, and the water vapor permeability rate is close to 2000g·μm/(m2·24h).
5. Polypropylene fiber is the lightest of all chemical fibers. Its density is (0.90~0.92)g/cm3. It has the advantages of high strength, good toughness, good chemical resistance and antimicrobial resistance, and low price. It is used Polypropylene modified with glass fiber reinforcement or modified with rubber or SBS is widely used to make construction engineering templates. After foaming, polypropylene can be used to make decorative materials.
6. Polypropylene can be used to make greenhouse air awnings, mulch films, culture bottles, agricultural tools, fish nets, etc., and to make food turnover boxes, food bags, beverage packaging bottles, etc. It is reactively blended with waste PET (polyethylene terephthalate) to produce multi-functional waste PET, and is an in-situ fiber-forming composite material made by compounding multi-functional waste PET and polypropylene in-situ fiber-forming.
7. Polypropylene is the raw material of synthetic fiber. Polypropylene fiber is widely used to make lightweight and beautiful durable textile products. The pictures printed with polypropylene materials are particularly bright, bright and beautiful.
8. In the chemical industry, polypropylene can be used to prepare various corrosion-resistant pipelines, storage tanks, valves, special-shaped packing in packed towers, filter cloths, corrosion-resistant pumps and corrosion-resistant container linings; it can be used in medicine. It is used to make medical devices; polypropylene can also be developed and applied in the energy field through grafting, compounding and blending processes.
9. Alloying is a process of mixing waste PP with other polymer materials to prepare macroscopically uniform materials. By selecting different polymer materials for alloying, the processing performance, physical and mechanical properties of waste PP can be improved.
10. Compounding is the process of mixing waste PP and non-polymer materials to prepare composite materials. It is the main way to achieve high performance and functionalization of waste PP. Compounding waste PP can improve its rigidity, strength, thermal, electrical and other physical and mechanical properties, reduce costs, etc.
10. Inorganic fillers commonly used in PP compounding can be used to compound with waste PP, such as calcium carbonate, talcum powder, montmorillonite, metal oxides, fly ash and glass fiber, etc. Research has found that although these inorganic fillers can significantly improve the rigidity of waste PP and reduce costs, they are quite different in polarity from waste PP, have high surface energy and poor compatibility, resulting in a decrease in the elongation at break and impact toughness of composite materials.
11. Common organic fillers include wood powder and wood fiber, starch, wheat straw, hemp fiber and waste newspapers.
12. Hybrid composite is the process of preparing composite materials by filling polymers with two or more fillers. Due to the limitations of a single filler, hybrid composites can better improve the overall performance of the polymer through the complementary and synergistic effects of different fillers.
13. In order to give full play to the advantages of alloying and compounding, some researchers have begun to combine alloying and compounding to further improve and enhance the physical and mechanical properties of waste PP, and achieve high performance and industrialization of waste PP, such as organic fillers and elastomers. , Inorganic fillers and elastomers combined to modify waste PP, etc.
Qingdao Fangjinlong Technology Development Co., Ltd. was founded in 2010 and is located in Qingdao City, Shandong Province,
on the coast of the beautiful Bohai Bay. Focus on chemical production and sales for more than 20 years; We have all kinds of dangerous goods licenses; Rich experience in safe transportation; Provide high-quality customer service; and Deliver high-quality products and services to all parts of the world anytime, anywhere.
The company invested in and participated in the operation of two production enterprises in 2006, mainly producing chemical products related to water environmental engineering, including Sodium Hypochlorite, Ferric Chloride, sodium acetate, Polyferric Sulfate,
Polyaluminum Chloride, etc. In 2008, in the laboratory independently operated by the company, famous researchers from the
School of Environmental Science and Engineering, Ocean University of China jointly conducted research and development on sewage treatment chemicals and sludge reduction technology and made breakthrough progress. Obtained three national patents in one fell swoop. In the same year, it was awarded the title of high-quality supplier of large water group companies such as Qingdao Water Group, and Everbright Water Group.
In May 2013, the company invested in the establishment of Qingdao Fangjinlong Supply Chain Co., Ltd., an enterprise in China
(Shandong) Qingdao Free Trade Pilot Zone, which greatly promoted the development of international business. The expansion of
main products involves mining chemical products, petrochemical products, sewage treatment chemical products, food additives, etc.
In order to facilitate the transportation of goods, the company cooperates with well-known freight companies in Huangdao District, Qingdao, and can independently complete the storage and transshipment business of the warehouse, which greatly improves the convenience and safety of goods transportation. Up to now, the company has reached long-term and stable cooperative relations
with 36 companies from South America, North America, Europe, the Middle East, Russia, and other countries and regions. In 2022, the export volume exceeded 80 million US dollars, accounting for 30% of the company's total revenue.
For many years, relying on our rich market experience, precise corporate strategy, and excellent scientific and technological talents, the company has been steadily and continuously moving forward on the track of specialization and diversification.
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Polypropylene, referred to as PP, is a polymer made of propylene through the addition polymerization reaction. It is a white waxy material with a transparent and light appearance. The chemical formula is (C3H6)n, the density is 0.89~0.91g/cm3, it is flammable, the melting point is 164~170ºC, it softens at about 155ºC, and the use temperature range is -30~140ºC. It can resist the corrosion of acids, alkalis, salt liquids and various organic solvents below 80ºC, and can decompose under high temperature and oxidation. Polypropylene is a thermoplastic synthetic resin with excellent properties. It is a colorless, translucent thermoplastic lightweight general-purpose plastic with chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high-wear resistance processing properties. , widely used in the production of clothing, blankets and other fiber products, medical equipment, automobiles, bicycles, parts, transportation pipelines, chemical containers, etc., and also used in food and pharmaceutical packaging
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