The hottest plastic additives make plastic polymer

2022-08-15
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After linear amplification, it is converted into 0 ~ 5V electrical signal for a/d reception. Plastic additives make plastic polymers even more powerful

plastic additives can improve formability or just change pigmentation, etc. many plastic polymers will be added in the production process. However, these substances must be carefully controlled

different kinds of plastic additives will have different disadvantages and advantages. Adding them to the polymer will make the polymer have different properties, so that the polymer has greater practical value and meets the increasing market. 11) the maximum distance between the lower fixture and the upper fixture. 5. Regularly check the transmission of the sprocket. The large interval should be no less than 700mm; Requirements

formability additives provide impact resistance of polymers

polymers with difficult formability can be used as lubricants or processing aids, which can help materials stick to metal surfaces and reduce the amount of energy required to manufacture them. Some additives, such as acrylic polymers, can improve impact resistance. PVC material, do you know how to install and operate the concrete pressure testing machine? It can be used in molding or extrusion equipment, and is often regarded as a lubricant, but also as a processing aid and additive. But these additives will pollute other chemicals through solvents

more and more polymer materials have entered the market, and various polymer products have emerged. Nowadays, polymer products include polymer films, polymer cells, polymer batteries, etc. In terms of characteristics, some polymers are transparent, some have good air tightness, and some have conductivity, semiconductivity, magnetism, etc. these excellent characteristics have been widely used in various related industrial technology fields

improve the formability and stability of polymers

different polymers have their own characteristics. Some polymers, such as rubber, are elastic, while others, such as lignin or cellulose nitrate, are relatively rigid and cannot be softened by exposure to non solvent materials. For this reason, plasticizing compounds can be added to polymers to reduce their hardness and improve their formability. Plasticizers collect molecular groups between different polymer chains, but do not change the amount of polymer. In this way, the movement of the polymer chain can be less limited

plasticizers usually have a solubility level close to that of the polymer itself. As long as the polymers can be used compatibly, multiple plasticizing additives can be in a single mixture. When the plasticizer phthalic acid is introduced into the polymer of polyvinyl chloride (PVC), its melt viscosity can be reduced and its photostability can be improved. The oxidation resistant acid it provides also makes the polymer more susceptible to fungal contamination and corrosion

change the color of polymer materials

in order to meet the market demand, today's polymers can have different colors by adding pigments. However, some pigments will increase the susceptibility of polymers to chemical reactions, so be careful when choosing pigments. Pigments, such as carbon black, will not react to form corrosive agents. Clay and other hydrophilic additives have water absorption, which may damage some polymers. Similarly, carbonate pigments, such as limestone, can make materials vulnerable to inorganic acid corrosion. These effects can be alleviated by other means. In addition, adhesives, such as organosilane, help to make up for the deficiency between pigments and polymer molecules

UV stabilizers and antioxidants make polymers more stable

many unsaturated polymers can be absorbed from various sources, such as oxygen, resulting in the release and degradation of organic peroxides. In order to reduce the risk of deterioration of mechanical and chemical properties, phenolic or amine antioxidants can be added to these polymers, and some pigments and stabilizers are conducive to shielding ultraviolet light. Common additives with these effects are: hindered phenol: a benzene ring composed of phenol and hydroxyl. When it is replaced by hydrogen bonded by adjacent carbon atoms and heavier elements, it will be converted into hindered phenolic compounds, thus preventing the oxidative degradation of rubber polymers

antioxidants: secondary amines, including aromatic hydrocarbons, such as benzene, can be used as antioxidants in their compositions to protect polymers from oxidative deterioration. However, they also react with acids, making them vulnerable to acid corrosion

stabilizer: some organic polymers have photooxidation, which is caused by the deterioration of oxygen exposure under ultraviolet light. Pigments such as carbon black and UV stabilizers such as hydroxybenzophenone can be added to inhibit the rate of photooxidation

in the future, the market demand for polymers will increase, which requires the diversification of the properties of polymers, and various plastic additives will also play a very important role in this development process, so that the properties of polymers will be diversified and the application fields will be extensive

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