Solid-phase viscosification is also called solid-phase polycondensation, which is a polycondensation reaction carried out in solid state. The polyester prepolymer with a certain molecular weight is heated below the melting point and above the glass transition temperature (usually 10-40℃ below the melting point), and the small molecule products are taken away by vacuum or inert gas protection, so that the polycondensation reaction continues.The condensation polymerization occurs due to the effective collision between the spherical regions.Rongsheng solid phase viscosity increasing device can be according to the user's output and variety of characteristics, can adopt a single kettle process, all crystallization and reaction are completed in the drum reactor, save investment, occupy less area, flexible variety replacement.If the outside crystallization system is selected, the time occupied by the raw material in the drum reactor can be saved and the production output can be increased.The

Rongzheng solid phase viscosity synthesis of physical and chemical methods of the characteristics of the molten state through ultra-clean filtration to remove impurities in PET particles, macromolecular groups, and other plastics, so that the particles to achieve a true sense of purity, change the particles can be re-industrial filament and civil filament field.Adhesifying equipment can produce high viscosity PET particles, the characteristic viscosity can reach more than 1.0, the product can be used in the field of industrial packaging, production, production of steel belt, cord cloth and other products.The equipment uses all kinds of recycled PET as raw materials, and produces high-viscosity PET particles through condensation polymerization, which greatly reduces the production cost and can reduce energy consumption for enterprises to save costs and improve enterprise benefits. At the same time, the use of recycled materials can greatly reduce the impact on the environment and also h

PET is a milky white or pre-yellow highly crystalline polymer with a smooth and shiny surface.Good creep resistance, fatigue resistance, friction resistance and dimensional stability, low wear and high hardness, with the largest toughness in thermoplastic plastics;Good electrical insulation performance, less affected by temperature, but poor corona resistance.Non-toxic, weather resistance, good stability of anti-chemical drugs, low water absorption, resistance to weak acid and organic solvents, but not heat-resistant water immersion, alkali resistance.PET resin glass temperature is high, slow crystallization rate, long molding cycle, long molding cycle, large molding shrinkage, poor dimensional stability, crystallization of the molding is brittle, low heat resistance.Through the improvement of nucleating agent, crystallizer and glass fiber reinforcement, PET has the following characteristics besides the properties of PBT: 1.Thermal deformation temperature and long term use

荣胜固相增粘—企业培训

The 2017 China International Textile & Yarn Exhibition (Spring/Summer) was held on March 15 at the National Convention and Exhibition Center (Shanghai).At the exhibition, "Made in China" graphene fiber attracted attention.
As one of the most disruptive new materials, graphene has developed rapidly in the field of high-end new textile materials due to its excellent performance.At present, Europe, the United States, Japan, and many other countries, the graphene as the century's most important new material research and development, and has set up a new energy, electronics, new materials in aspects such as important progress and preliminary application effect, and shows a wide application prospect, our country also has the graphene as a national important strategic materials listed in the national "much starker choices-and graver consequences-in planning."The industrialization and application of graphene composite fibers will promote the supply-side structural reform of China's chemical f