How to improve the market competitiveness of recycled materials after consumption?
Release time:
2022-02-25 12:05
Source:
UsePost-consumer recycled materialsWhen processing products, most of them will encounter no light, dark yellow transparent products. However, these are normal conditions, because most of the recycled materials have aging or material degradation, which affects the appearance and performance of the recycled products. How to effectively solve these bad situations, make the appearance of the product as bright and white as before, and improve the market competitiveness of the product, you may wish to add some fluorescent whitening agents.
Plastic brighteners can enhancePost-consumer recycled materialsThe whiteness of the surface makes the color of the colored body shiny and achieves the purpose of brightening.
1. The principle of fluorescent whitening agent
An optical brightener is an important functional additive that absorbs invisible ultraviolet light (in the wavelength range of about 360-380 nm) and converts it to longer wavelength blue or violet visible light, thereby compensating for the unwanted yellow color in the matrix, reflecting 400-600 nm more visible light than the original incident light wavelength. Post-consumer recycled materials
Without changing the chemical structure of the material, the human eye's absorption wavelength of light is used to change the human eye's visual perception of the plastic color, so that we look more beautiful and comfortable, so that the product appears whiter, brighter and brighter. Post-consumer recycled materials
Its function is to convert the invisible ultraviolet radiation absorbed by the product into purple-blue fluorescent radiation, supplement the original yellow radiation into white light, and improve the whiteness of the product in the sun.
2. The use of plastic fluorescent whitening agent
The performance and processing of plastics have their own characteristics. The way in which the whitening agent is added directly affects its presence in the plastic, and the presence state directly affects the use effect of the whitening agent. Post-consumer recycled materials
No matter what kind of whitening agent is used, it must not only adapt to the processing of plastics, but also have sufficient molecular dispersibility or complete solubility in plastics. If dispersed in the plastic in the form of aggregates, the optical whitening effect is not exhibited or greatly reduced.
Nowadays, the distinction between plastic models is becoming more and more detailed, and the requirements for plastic whiteness are getting higher and higher. Different models have different requirements for whiteness, and the types and proportions of plastic fluorescent whitening agents are also different. Many products use fluorescent whitening agents, but the product is still yellow, that is, there is no suitable type of plastic fluorescent whitening agent. IfPost-consumer recycled materialsManufacturers use these products to improve the whiteness of plastics, and the effect is definitely not ideal. Therefore, according to the application mode of their own plastic products to choose the corresponding fluorescent whitening agent, do not blindly choose. It is recommended to cooperate with regular fluorescent whitening agent manufacturers. First of all, the manufacturer supplies directly, and the price is more favorable without middlemen. Then there is the whitening agent produced by regular manufacturers, the detection is more strict, the product is more experienced, and you can give you more reasonable suggestions according to your needs.
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Uses: Widely used in machinery, instrumentation, auto parts, electronic and electrical, railways, home appliances, communications, textile machinery, sports and leisure products, oil pipes, fuel tanks and some precision engineering products. Electronic appliances: connectors, winding spools, timers, protective cover circuit breakers, switch housing cars: cooling fans, doorlevers, fuel tank covers, air intake grille, water tank protective covers, lamp holders industrial parts: chair seats, bicycle frames, skate bases, textile shuttles, pedals, sliding transmission; Classification: antistatic PA, conductive PA, fiberized fireproof PA, fireproof PA, UV-resistant weather-resistant PA, extrusion grade PA.
Plastic raw materials are divided into several
Testing of plastic raw materials 1. ABS plastic raw material (acrylonitrile-dibutylene-styrene) Styrene hot melt plastic. Hard plastic materials are opaque. Yellow flame, black smoke, water droplets burning, sour, rubber burning smell, the proportion of 1.04. Soluble in acetone, dichloroethane and three bromomethane. Slow burning, acid and alkali resistant, but stress cracking occurs when exposed to certain acids and organic solvents. Main uses: toys, casings, daily necessities; features: hard, not fragile, can be pasted, but may appear when damaged. Designed for use: mostly for toy shells or unstressed parts. 2. PC plastic raw material (polycarbonate) Engineering plastics have high hardness, high impact strength and high temperature mechanical properties. Hot melt plastic material, not easy to burn. Yellow flame, automatically extinguished. It has a faint phenolic odor. Melting point 430F, specific gravity 1.2. Soluble in methane chloride and ethane chloride. Optical clarity or tint formulations are suitable for lenses, goggles, electrical enclosures, hard hats and engineering equipment. 3. PE plastic raw material (polyethylene) Natural milky white, waxy; it burns fast, like a drop of wax. The flame is blue, the tip is yellow, with the smell of burning paraffin; the melting point of low-density polyethylene is 221f, the melting point of high-density polyethylene is 248F, and the ignition point is 645f; the specific gravity is less than 1, floating on the water; Soluble in cooked benzene and toluene, insoluble in other general solvents. 4. PP plastic raw material (polypropylene) Harder than PE steel; yellow sharp blue flame burns slowly, smell similar to diesel and toxic smoke; melting point is about 334f; specific gravity is 0.906, floating on water, soluble in hot benzene; main uses: toys, daily necessities, packaging plastic bags, bottles; its characteristics: good elasticity, strong toughness, good ductility, but not easy to bond.
PU how to prevent carbonization
Antibacterial TPE is the abbreviation of Thermo plastic Urethane, and its Chinese name is thermoplastic polyurethane elastomer. Because TPU has the characteristics of high tension, high tension, toughness and aging resistance, it is widely used in medical and health, electronic appliances, industrial and daily necessities, and is a mature environmental protection material. According to the processing method can be divided into injection molding grade, extrusion grade, blow molding grade TPU. In the production and processing, the normal processing temperature of TPU is between 170-220 degrees, which belongs to the heat-sensitive material after being decomposed into flowing water at high temperature, and the adhesion to metal is strengthened, which is very troublesome for cleaning after carbonization. The production temperature is also very limited, many in the processing of TPU materials have encountered carbonization problems, most of them will be cleaned by dismantling the screw. Dismantling the screw is a common method for many companies at present, but there is actually a simpler method when the manpower and material resources are so high. Screw cleaning material also came into being. In view of the problem of TPU black spots, TPU special screw cleaning material can be used for cleaning, and the chemical active substances added in the plastic can be fully released within a certain temperature and time, so that the resin adhering to the surface of the screw and the barrel can be separated from the metal surface, and then brought out by the rotation of the screw, which is convenient, simple and quick to use. Welcome to discuss together
TPU is different in elastomer products.
DONGGUAN JAHA PLASTIC MATERIAL CO., LTD For TPE and TPU, they are two common types of thermoplastic elastomer materials, these two materials have similarities in performance, but in the basic characteristics are more reflected in their own characteristics, which also provides more possibilities for the choice of materials. What are the differences between TPE and TPU in terms of characteristics? The differences between TPE and TPU in elastomer products are as follows: Transparency: The transparency of TPU is better than that of TPE, and it is not as easy to stick as transparent TPE. Oil resistance: TPU oil resistance is better, and TPE to achieve oil resistance is a certain degree of difficulty. Proportion: The proportion of TPE varies widely, from 0.89 to 1.3, while TPU is between 1.0 and 1.4. In fact, they are used in the process, mainly in the form of blends, so the proportion of large changes. Temperature resistance: TPE is -60 degrees Celsius to 105 degrees Celsius, TPU is -60 degrees Celsius to 80 degrees Celsius. The difference between TPE and TPU in elastomer products will be explained here. TPE can be regarded as the general name of all thermoplastic elastomers. TPU is thermoplastic polyurethane elastomer. From this perspective, TPU is only one of thermoplastic elastomers TPE.
Dongguan Jiaifa Plastic Raw Material Co., Ltd. (abbreviated as: Jiaifa), specializing in plastic raw materials, is a plastic enterprise integrating plastic raw material trade, production, research and development, color matching, and storage, and is equipped with a professional management system and R & D team., Production equipment, testing equipment, escort the needs of customers. Can provide customers with plastic raw materials related integration solutions. It has made achievements in the fields of plastic-related antibacterial, infrared penetration, thermal conductivity, electrical conductivity, antistatic, laser engraving, light guide, shading, UV resistance, glass fiber reinforcement, mineral reinforcement, toughening and other functional plastic materials. All products have passed Rohs,REACH,CP65 and other environmental protection certification. Main business: main business: antibacterial PBT, antibacterial EVA, antibacterial PS, antibacterial TPU, antibacterial TPE, antibacterial TPV, antibacterial PET, antibacterial PMMA, antibacterial POM, antibacterial AS, antibacterial ASA, antibacterial PP, antibacterial PE, antibacterial PA, antibacterial PC, antibacterial PETG, etc.
JiaFa®Antibacterial POM antibacterial properties
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About Jialfa Plastic
Jiafa is a plastics enterprise integrating plastic raw material trading, production, research and development, color matching and warehousing. Can provide customers with integrated solutions related to plastic materials.
