Auxiliary agents, also known as additives, are substances that are added to a material to improve or modify its properties. In the field of polymers, auxiliary agents are commonly used to enhance the processing, performance, and durability of polymer materials. Auxiliary Agent,Liquid Phenolic Resin,Phenolic Resin,Composite Phenolic Epoxy Resin Shanghai Shengduan Trading Co., Ltd. , https://www.shsdchem.com
Under the background of high-speed agricultural mechanization, during the "three summers" period, the problem of insufficient supporting facilities for machine-farming roads and the difficulty of agricultural machinery being exposed was also revealed. In many rural areas in the north, due to the lack of planning of farmland machine-farming roads or the lag of design standards, some local agricultural machinery have frequently appeared in the field of road-moving, unable to walk and other barriers, affecting and restricting the level and role of agricultural mechanization.
There are several types of auxiliary agents, each with its own unique properties and applications. The most common type is processing aids, which are added to polymer materials to improve their flow and moldability during processing. Processing aids can improve the surface finish of the final product and reduce the amount of energy required during processing.
Another type of auxiliary agent is plasticizers, which are added to polymer materials to increase their flexibility and reduce their brittleness. Plasticizers can improve the toughness and impact resistance of the final product and are commonly used in the production of flexible PVC products, such as hoses and films.
Other types of auxiliary agents include stabilizers, which are added to polymer materials to protect them from degradation caused by heat, light, or chemical exposure. Stabilizers can improve the durability and longevity of the final product and are commonly used in outdoor applications, such as building materials and automotive parts.
Colorants, fillers, and flame retardants are also common types of auxiliary agents. Colorants are added to polymer materials to give them a specific color, while fillers are added to improve the mechanical properties of the final product, such as its strength and stiffness. Flame retardants are added to polymer materials to reduce the risk of fire and are commonly used in applications where fire safety is critical, such as building materials and electronics.
The choice of auxiliary agent depends on the specific application requirements and must be carefully considered to ensure that the final product meets the desired specifications. It is important to select the appropriate auxiliary agent to achieve the desired performance, processing, and durability characteristics of the polymer material.
In summary, auxiliary agents play an important role in the processing, performance, and durability of polymer materials. There are several types of auxiliary agents, each with its own unique properties and applications, and the choice of auxiliary agent depends on the specific application requirements.
One of the restrictive factors in the construction of agricultural machinery
[China Agricultural Machinery Industry News] According to market research, many rural farmland roads have not changed for decades, and they are designed according to small tractors. After the large-scale operation of Oda and Daejeon, small tractors are no longer suitable for contiguous The need for large production. At present, it is worth collecting in summer and summer. It is understood that due to the lack of planning of farmland and farmland, or the lag of design standards, some local agricultural machinery have frequently appeared in the field, and there is no way to block, which affects and restricts the mechanization of agriculture. Level and role play.
One of the restrictive factors in the construction of agricultural machinery
The machine-grown road is a passage for agricultural machinery (tractors, harvesters, etc.) to enter and exit the field to perform farmland operations. Whether it can be effectively utilized, it directly relates to the speed and popularity of agricultural machinery, as well as various efficiency and quality of work. After liberation, in order to meet the needs of the development of agricultural mechanization, since 1956, China began to raise funds in the relevant counties and townships (communities) in the country, and built a machine-plowing road for tractors. The machine-grown road is the lifeline of building a new socialist countryside and connecting the outside world with economic vitality. It is the lifeline for rural poverty alleviation.
At present, in many rural areas, hardened roads have been implemented in villages and villages, but the situation of “machine-grown roads†is generally not optimistic. Due to prolonged wind and rain, mechanical rolling, and years of disrepair, roads are uneven, hills collapse, puddles Landing, planting crops on the roadside, etc., bring great inconvenience to the smoothness of the machine road, and easily lead to accidents.
The construction of machine-grown roads is not a small investment, but it is necessary for the agricultural development of a place. When planning and designing roads and bridges, relevant departments should start from the actual situation, institutionalize democratization and scientific management, let the roads keep clear, ensure roads and roads, promote the development and popularization of agricultural mechanization, and create more for farmers. More convenient.
(Original title: Restrictions on the level of agricultural mechanization