Lubricating oil is used to reduce friction between items, as early as in ancient Egypt there have been records of using olive oil to carry heavy objects. However, due to several constraints, it was not until the Middle Ages that lubricating substances were extracted from plants and animals. Today's lubricants have also been used on a large scale with the increase in oil production, and although the oil looked very advantageous at the time, untreated crude oil could not show its performance. In the late 19th century, the large-scale use of internal combustion engines promoted the development of fuel vehicles, and the prosperous automobile industry provided the possibility for the development of the oil industry, at this stage, the demand for base oil was very large, and is its choice, coupled with the active guidance of various manufacturers at that time, timely improvement, and eventually applied in all aspects. Due to the variable temperature of the lubricating oil, it will not only accelerate the oxidation and deterioration of the lubricating oil but also reduce the service life of the lubricating oil. If the temperature is too low, the viscosity of the lubricating oil will be reduced, which will to the thickness of the lubricant oil film, on the contrary, it will accelerate the oxidation and deterioration of the lubricating oil, resulting in the thin oil film, which cannot provide effective protection and will cause wear and scratches to the parts. So "additives" came into being, adding substances that can change its performance to the lubricant to get its new characteristics or improve some of the characteristics that already exist in the lubricant.Zhejiang Zhongli is one of only a few companies in the world with the ability to produce HSD type products, its development and production of D760 product is an HSD type (hydrogenated styrene-isoprene copolymer) adhesive, from the appearance of white powder, used in lubricants, adhesives and other fields. The viscosity index modifier can not only improve the viscosity of the base oil, but also improve the viscosity and temperature performance of the lubricating oil, so that the oil has good lubricity and low temperature fluidity, and the shear resistance and solubility have great advantages, which can be used in the solvent refined mineral oil, hydrogenation base oil and synthetic oil.The physical properties of D760 products are shown in the table D760 is a star-type hydrogenated styrene diene polymer, so the thickening ability and shear stability are more balanced, can be used for the preparation of high-end multigrade gasoline oil, multigrade diesel engine oil, suitable for the preparation of large-span high-grade multi-oil. Not only suitable for refined mineral oil, hydrogenated base oil, CTL (coal to oil) and PAO (synthetic base oil) and other all kinds of synthetic oil have good solubility, its configuration of the adhesive liquid is very clear and bright, at low temperature fluidity is very good, compared with other OCP(olefin copolymer) products on the market. It performs very well in thickening properties and at low temperatures. The thickening properties of D760 and commercial OCP (amorphous, SSI < 25) in 150N base oil are shown in the following figure The low-temperature performance of D760 and two commercially available OCPs in base oil is shown in the figure below The oil with D760 configuration was used in the taxi driving experiment, which lasted for 20000km. Compared with OCP on the market, the experimental results show that D760 has the advantages of flexible formulation, less consumption, controllable cost and good shear stability of diesel nozzle. At the same time, the D760 is very adaptable in the driving process, and can provide high-quality lubrication protection for taxis under harsh working conditions. Compared with the OCP model, the D760 has better cryogenic pumping retention and can meet the demanding cryogenic performance requirements of high-end engine oils. This product is at the advanced level of domestic similar products in terms of formula design and synthesis technology. Please feel free to contact us if you need to know more.

Practice by actingTo respond to the call of "prevention , life " in Fire Safety Month, and improve the company's employees' emergency handling ability and self-protection ability in response to emergencies, a butadiene ball tank discharge flange leak emergency drill was held. This exercise aims to improve the safety awareness of all employees, and at the same time, through the exercise, relevant departments and relevant personnel can master the emergency rescue operation procedures and handling methods, and improve the coordination of operations and rapid emergency response capabilities of various departments to hazardous chemical leakage accidents. If the discharge flange of a T-7101C butadiene spherical tank in the tank group leaks, the operator of the public works post will handle it on the spot, and the volunteer fire station personnel will cooperate with the emergency response. After the accident expands, the company will initiate the company-level comprehensive emergency plan. Emergency teams such as rescue and repair team, medical rescue team, environmental emergency team, warning and evacuation team, outreach team, technical support group, fire control group, logistics support group, and material supply group shall be assembled for emergency response.The central control personnel heard the audible and visual alarm system of flammable gas leakage, immediately checked and found that the combustible gas alarm device near the tank group and the crude butadiene storage tank gave an alarm, and immediately notified the personnel to check.After confirming the danger on the scene, the danger will be reported immediately. After receiving the report, the general commander will announce the immediate launch of the comprehensive emergency plan. After receiving the instructions, the members of the emergency response team will immediately go to the assembly point, and at the same time, the on-site commander will conduct emergency deployment.Members of the emergency repair team wear protective equipment and carry tools to enter the disaster area for emergency treatment.After the participants assemble and count the number of people, it is confirmed that the emergency state is lifted and the drill is over.The drill lasted about 60 minutes. In this drill, the on-site command was calm and orderly, and the cooperation between the emergency response teams was smooth, so that the whole drill process went smoothly and reached the expected drill effect, and finally successfully completed the task.After the drill, the emergency commander summarized the drill, put forward the problems and improvement measures in the drill, and asked that the future will continue to optimize the special emergency plans for various accidents, regularly carry out emergency drill activities, and enhance the ability to deal with production safety accidents.

With the continuous maturity of optical fiber technology of communication cable, the research of optical fiber materials has gradually attracted people's attention. As an important part of optical fiber materials, ointment plays the role of sealing, moisture-proof, waterproof, buffering and protection in optical cable. The quality of the oil paste directly affects the transmission performance and use performance of the optical cable, and the M7401 produced by Zhejiang Zhongli is used in the optical cable optical fiber with very good weather resistance and heat resistance. Rheological modifiers are products from petroleum refined materials, are used to improve the consistency or control viscosity and other rheological properties of additives, often referred to as "thickeners" exist in products, in our daily life for certain products to provide specific functions. It can not only be applied to communication optical fiber in our daily contact with the field of cosmetics also has a pivotal position, by adding thickener in cosmetics to change the appearance and stability of the product, want to adjust the rheological state of its products must choose the appropriate thickener to add to the product. Zhejiang Zonli has a unique anionic polymerization technology. The M7401 product developed and produced by ZONli is a linear hydrogenated styrene-isoprene double block polymer, which is white powder in appearance and has the characteristics of good weather resistance, heat resistance, recycling and reprocessing, safety and environmental protection. Mainly used in optical fiber filling paste thickening, cosmetic thickening, can also be used as paint, lubricating oil, grease, adhesive, asphalt and other fields of rheological modifier. The physical properties of the M7401 product are shown in the table When two SEP polymers are mixed with the base oil, the styrene and rubber chains in the SEP polymers are connected to each other at the end and cannot form a cross molecular network, providing thixotrope properties (shear thinning) of the paste. The fiber optic fiber paste is kept viscous by the undisturbed entanglement of two SEP polymers. When subjected to external force, the linear polymers of two blocks either flow in orientation or form a granular lubricant, so that the gel becomes a sol state. Compared with inorganic gelling agents, polymer gelling agents have better miscibility with base oil, and their properties are more stable at higher miscibility temperatures. The performance data of 10% concentration filling paste prepared with M7401 are shown in the table Compared with other products, M7401 is innovative in the following aspects: Suitable polymer microstructure, SEP has oil solubility, the stability of the oil paste is very , the polymer obtained by advanced preparation technology has close to double block structure, al no triple block, the product in the formulation design and synthesis technology is at the advanced level of similar products in China. Please feel free to contact us if you need to know more.

The Mexican Leather and Footwear Exhibition Leon (ANPIC) is the largest and professional leather and footwear exhibition in Mexico. The exhibition mainly displays shoes, clothing, accessories and other products of lifestyle, textile, fabric, yarn and other industries, as well as textile, clothing and other machinery and equipment and technology.Mexico has a vast consumer market, but also Latin American economic power, the exhibition is a very important platform for enterprises to open the Mexican market, but also an important channel to enter the Latin American market and the United States market.At present, Mexico has fully lifted import restrictions on Chinese finished shoes and clothing, and import tariffs have been significantly reduced, which is a huge business opportunity for China's finished shoes and clothing industry.This time, Zhongli Technology focused on showing its independent research and development and production of Q55 series of innovative products at the exhibition site, showing its professional application in shoe materials.Q5501 is a new SEBS material, which belongs to linear block copolymer. After selective hydrogenation, a SEBS product with special network structure will be formed, which can fundamentally solve the problem of cracking of SBC (styrene) elastomers under oxygen-rich stress conditions. The product has resilience and bending resistance, and with the promotion in other industries, the application field of the product will be further expanded.Q5503 is a directional hydrogenated SEBS product, mainly used for foamed footwear, the sole made of this product has the advantages of light weight, soft, good support and so on.Q5583 is a directional hydrogenated SEBS product with good aging resistance. It can be blended with EVA and is the ideal high-rebound modifier for EVA. This product can effectively improve the puncture resistance, wet slip resistance and low temperature resilience of EVA, mainly used for high resilience foam sole.

Recently, Zhejiang Provincial Department of Human Resources and Social Security awarded Zhongli Postdoctoral Workstation. Postdoctoral workstation is a research transformation platform set up by higher education institutions to improve the conversion rate of scientific research results and serve the social and economic development, which undertakes the important task of talent introduction and training and promoting the cooperation between industry, university, and research. Over the years, the company has continuously increased R&D investment and R&D platform construction, through independent research and development, transformation of scientific and technological achievements, industry-university-research cooperation and other ways, the forming core technology and possessing a batch of advanced domestic products. At present, the company has a number of patents and trademarks and other independent intellectual property rights. In the future, the company will make full use of the advantages of the postdoctoral workstation platform, introduce high-quality talents, strengthen industry-university-research cooperation and exchanges, and bring new vitality to the company's research and development work.