People's life rhythm is particularly fast, and frozen foods have become an important part of people's lives. This drives the rapid development of quick-freezing equipment in China. The following is a detailed introduction for you. Although China's rapid-moving equipment was affected by the global economy, it fell slightly in 2008, but it has been re-developed in recent years. After adjustment, the quick-freezing equipment industry in China is in a period of rapid development, which is related to the relatively large market for the market size of frozen food in China.
However, in the face of good prospects for development, we must also clearly understand that the current problems in the development of frozen equipment in China, especially in the technical field and the international level of the gap. In the context of expensive imported frozen machines that make it difficult for companies to absorb such expenditures, it has become very important to upgrade independent research and development capabilities and achieve the localization of high-tech quick-freezing machines. For example, the quick-freezing machine with a fluidized bed, the fork spiral quick-freezing machine, and the liquid nitrogen spraying quick-freezing machine are the quick-freezing equipment that should be actively developed in China.
For the frozen food industry in China, the application of quick-freezing equipment can promote the healthy and rapid development of the industry. Compared with mechanical processing, manual operations are more susceptible to problems such as microbial contamination, varying sizes, poor monomer quality, and poor molding. Therefore, the use of quick-freezing machines and other mechanized automated production lines for molding, filling, packaging, sealing, blanching, cooling and other processes, it is very important. If China can achieve localization in these equipment areas, it is not only a major development of the rapid-moving equipment industry, but also a development opportunity for speed food.
Polyester polyols are the important raw materials of coating, adhesives, elastomer and foam.
Polyester polyols can be divided into aromatic polyols and aliphatic polyols because of the acid and polyols.
Aromatic polyols are mostly used in preparing PU rigid foam which foam has great thermal insulation ability.
Aliphatic polyols with different raw materials show different performance.
No mater aromatic polyols or aliphatic polyols, we can provide the special products according to customers` requirement.
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 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.
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.
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