Kitchen faucet. Installed on the kitchen sink, used to put cold water, hot water or a mixture of hot and cold water. Its structure includes: screw lift type, metal ball valve type, ceramic spool type, etc. The valve body is made of brass, chrome-plated, gold-plated and various metal lacquers. The shape is various, the handle has a single, double handle of the points.
Kitchen Taps,Delta Kitchen Faucets,Kitchen Sink Faucets,Sink Tap Kaiping Jianfa Sanitary Ware Co.,Ltd. , https://www.jfsanitary.com
Plastic film products are widely used due to their advantages of light weight, thin shape, low cost, portability and shape change. Especially in food and daily necessities packaging, agricultural covering materials, etc., the quantity and quality of plastic film products are constantly increasing, and the functional requirements for new film materials are also increasing. Improving the quality of the film and improving its functionality, relying solely on the change of the resin matrix and the improvement of the molding process can not meet the needs of market development. Adding various functional additives has become a simple and efficient means to realize the functionalization of the film.
Packaging film additives
Biaxially oriented film materials have always been at the forefront of film packaging, and applications such as biaxially oriented polypropylene (BOPP), polyester (BOPET), and nylon (BOPA) have become increasingly widespread. Traditional PVC films are widely used in various vegetable and fruit preservation, long-term frozen food packaging, microwave baked food packaging, and conductive films for electronic component packaging. In addition, products such as cast polypropylene (CPP) and cast polyethylene (CPE) are also produced. The auxiliary products of the above packaging film materials mainly include antistatic agents, smooth and {HotTag} anti-blocking agents, reinforcing agents, heat stabilizers, antioxidants and barrier agents.
Antistatic agent
Industrial antistatic agents are primarily a single compound or combination of nonionic and ionic surfactants. According to whether the hydrophilic group in the molecule can be ionized, it is divided into an ionic type and a non-ionic type, and the ionic type is further classified into a cationic type, an anionic type and an amphoteric type. The antistatic principle is to absorb the moisture in the air on the surface of the plastic by using its hydrophilic group, or to form a conductive layer on the surface to reduce the surface resistance.
Cationic antistatic agents have excellent antistatic properties, but generally have poor thermal stability and are easily decomposed and discolored under high temperature processing conditions, and are generally only used in PVC products. Anionic antistatic agents cannot be used for film products because they affect transparency.
In the packaging materials, the judgment of the performance of the antistatic agent should not only investigate its antistatic effect, but also its influence on the performance of the product. For this reason, the key to the development of antistatic agents is the investigation of the structural design and compatibility of various surfactants. Currently, the development of serialized, specialized products is an important development direction of antistatic agents.
Smooth and anti-blocking agent
Modern plastic processing is moving towards automation, high speed and high quality. The faster the processing speed, the easier it is to generate static electricity due to friction, and the easier the film (plastic product) is stuck, which seriously hinders high-speed extrusion; the better the transparency of the film, the higher the processing temperature, the easier it is to agglomerate, Sticking. Therefore, high-performance slip agents and anti-blocking agents play an extremely important role in plastic production and automated packaging.
Jiuzhi Plastics Network
Application status of plastic film additives