Polyester Polyol is a type of polyol that is derived from the reaction between a polyol (such as glycerol or ethylene glycol) and a dicarboxylic acid (such as adipic acid or phthalic anhydride). It is commonly used as a raw material in the production of polyurethane foams, coatings, adhesives, and elastomers.
Polyester polyols are typically liquid at room temperature and have a high molecular weight. They can be further reacted with isocyanates to form polyurethane materials, which have a wide range of applications in various industries, including automotive, construction, and furniture.
PU resin, also known as polyurethane resin, is widely used in the production of synthetic leather. Synthetic leather, also referred to as faux leather or artificial leather, is a man-made fabric that imitates the appearance and feel of genuine leather. PU resin is a key component in the manufacturing process of synthetic leather, as it provides the material with its durability, flexibility, and water resistance.
The process of producing synthetic leather involves coating a fabric substrate, such as polyester or nylon, with a layer of PU resin. This resin is typically applied in liquid form and then undergoes a curing process to solidify and bond with the fabric. The resulting material has a leather-like texture and appearance.
PU resin offers several advantages for synthetic leather production. It has excellent abrasion resistance, making the synthetic leather more durable and long-lasting. It also provides flexibility, allowing the material to be easily shaped and molded into different forms. Additionally, PU resin offers good water resistance, preventing the synthetic leather from absorbing moisture and becoming damaged.
Moreover, PU resin can be customized to achieve different finishes and textures, such as smooth, grainy, or embossed patterns, depending on the desired aesthetic. It can also be colored in various shades to mimic different types of leather. This versatility makes PU resin a popular choice for synthetic leather manufacturers.
Overall, PU resin plays a crucial role in the production of synthetic leather, providing the material with its desirable qualities of durability, flexibility, and water resistance.
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A few days ago, AQSIQ decided to establish a national key laboratory for grain and oil testing in Zhoushan. The establishment of the laboratory will provide inspection and quarantine technical support for the rapid growth of imported grain and oil products at Zhoushan Port.
The National Key Laboratory of Grain and Oil Detection was established on the basis of the integration of the Zhejiang Provincial Inspection and Quarantine Bureau's phytosanitary laboratory and the Zhoushan Entry-Exit Inspection and Quarantine Bureau's phytosanitary laboratory. It will take three years from preparation to acceptance. At present, the Zhoushan Inspection and Quarantine Bureau's phytosanitary testing laboratories have reached a considerable scale. Among them, 28 test items have passed the capability verification conducted by the National Certification and Accreditation Administration and the United Kingdom FAPAS, and 22 projects have been approved by the China Conformity Assessment Committee.
It is understood that more than 10 million tons of grain and oil products are imported from Zhoushan Port every year. “The ability and level of the laboratory not only affect the authority of the test results, but also the detection speed is directly related to the time of the ship’s detention in Hong Kong. For a 50,000 to 100,000-ton freighter, the international lag charge is 30,000 per day. To 50,000 US dollars.†Zhoushan Exit Inspection and Quarantine relevant person in charge said that the establishment of the laboratory on the construction of Zhoushan International Grain and Oil Distribution Center and Zhoushan District port image is of great significance.
Zhangjiagang Established National Key Laboratory of Edible Vegetable Oil Detection: Recently, AQSIQ officially issued a document, agreeing that the Zhangjiagang Inspection and Quarantine Bureau established the National Key Laboratory of Edible Vegetable Oil Detection. This is the result of the National Forest Species Identification and Wood Quarantine Key Laboratory. The second national key laboratory will provide strong technical support for the establishment of "Jiangsu Waigaoqiao".
In recent years, the city’s foreign trade has developed rapidly, with only one edible fat. In 2012, it imported 1.9 million tons, accounting for 45.8% of Jiangsu and 17.9% of the country. It has ranked in the top three of the national ports for seven consecutive years. Zhangjiagang Port has become the national import and export of grain and oil. Food distribution center. The establishment of this laboratory will, on the one hand, further promote the series chain development of grain and oil food distribution centers, logistics trade, trading markets, grain, oil and food manufacturing industries in our city, and improve and perfect the flow economy as the development model of stock economy; on the other hand, it will also Further improving the technical capabilities of the Zhangjiagang Inspection and Quarantine Bureau will help the inspection and quarantine departments better fulfill their duties of gatekeeping services and better serve local open economy.
The first national grain inspection station settled in Anyue: Anyue County is a major grain production county in the country. In recent days, the reporter learned from the development and reform bureau of Anyue County that it was in the list of the fourth batch of national grain quality inspection agencies recently announced by the State Grain Administration. , Anyue County Grain and Oil Quality Inspection Station was authorized to be Sichuan Anyue National Grain Quality Inspection Station, formally incorporated into the national food quality inspection system.
It is reported that Anyue County Grain and Oil Quality Inspection Station was established in May 2007, has passed the measurement and certification of the Sichuan Provincial Bureau of Quality and Technical Supervision, the quality inspection of the provincial food quality inspection agency, and obtained more than 90 inspection parameters. In the first half of this year, Anyue County passed the on-site evaluation of the State Food Administration Bureau's expert group, and it officially became one of the national food quality inspection agencies. It is also the only national grain inspection agency set up at the county level in Sichuan Province.
According to the person in charge of the Anyue County Development and Reform Bureau, “The establishment of a National Grain Quality Monitoring Station was successful in Anyue County, which is an important step in highlighting the advantage of Anyue District, improving Anyue’s regulatory status in grain quality and raw grain hygiene, and fulfilling the important role of food administration under the new situation. Responsibility and other aspects are of great significance.†With the success of the National Grain Quality Monitoring Station established in Anyue County, Anyue County has planned to build 320 acres of land in the village of Yuehuo, Yueyang Town, and will soon establish a set of warehousing, transaction, inspection and information integration. Sichuan Anyue Grain Logistics Center.
The food safety inspection industry has a huge market. According to the "12th Five-Year Plan" of the National Food Safety Supervision System, monitoring of future food contaminants and harmful factors will cover all county-level administrative regions. The number of monitoring outlets will expand from 344 in 2010 to 2,870. The market size is expected to exceed 200. Billion, the annual compound growth rate exceeds 50%.
According to the 2013-2017 China Food & Beverage Industry Analysis and Investment Prospects Report published by Champion Consulting, it is pointed out that with the formulation of the national food safety standards system and the introduction in the future, the food safety inspection industry faces tremendous opportunities for development. Since the protection of food safety depends on the monitoring and supervision of the entire industrial chain from food production, processing, and sale, there is still much room for development in the strength of food inspections in China, the setup of outlets, and the provision of equipment. Related companies should seize the golden opportunity to win the market.
Polyester polyols have several advantages over other types of polyols. They have good chemical resistance, mechanical properties, and thermal stability. They also have low toxicity and are environmentally friendly. Additionally, polyester polyols can be easily modified to achieve desired properties, such as increased flexibility or flame retardancy.