The chemical name of waste plastics, and what kind of plastic products can be made after making various waste plastics into pellets.
For example, what can a mineral water bottle do after it is made into pellets? Its chemical name?
What can I do after the woven bag is made into granules?
Reply:
After the thermoplastic finished product is recycled, it can be regranulated, called recycled plastic, and its name is ** recycled material.
In theory, its use is slightly narrower than the new material. Because of the special nature of recycling technology and finished products: such as food packaging, medical treatment, etc. (to avoid harm to the human body, generally such products do not use recycled materials).
However, the advanced recycling technology and strict recycling system in developed countries have made the performance of recycled materials close to new materials, and even through this, synthesis, etc., new uses can be developed.
Domestic technology is lagging behind, and so far, recycled plastic pellets have not yet introduced corporate standards or national standards. Therefore, the quality of plastic recycled materials is uneven, and its use depends on its specific technical indicators.
What kind of PP material is used in the syringe? Can it be recycled? How much is a ton?
Reply:
The PP material for the syringe is a kind of random copolymer PP, which can be recycled. The current price includes tax of about 13,000. The used syringe is medical waste, and it should be used with caution to avoid damage.
Some netizens recommend South Korea's RP340R (MI25) or 370Y (MI18); and it is strongly recommended not to use the return material because it is easy to cause a medical accident. .
I would like to ask how the oil price of Brent, WTI and OPEC is analyzed every day. At the same time, how does the futures of oil look high or low?
Reply:
Under the principle of cost-driven, crude oil-naphtha-ethylene-polyethylene-plastic products, the price of crude oil is consistent with the general trend of plastics (the deviation in the short term is also normal), but this effect should theoretically have There is a certain lag effect, and it is not as sensitive as the current domestic plastics market. At present, the impact of international oil prices on the domestic plastics market is mainly the mentality and the role of a herd mentality.
When the market returns to rationality, the supply and demand of plastic itself will have an increased impact on market prices.
The main uses of the properties of materials such as ABS.PS.PP.PE and the differences between the various labels.
Reply:
ABS has good rigidity, high impact strength, heat resistance, low temperature resistance, chemical resistance, mechanical strength and electrical properties, easy processing, good dimensional stability and surface gloss, easy coating, coloring, and metal spraying. Secondary processing properties such as plating, welding and bonding. Main applications: automotive, appliances, electronics / electrical appliances, building materials, ABS alloy / blends
PS electrical insulation (especially high-frequency insulation) is excellent, colorless and transparent, light transmittance is second only to plexiglass, coloring water resistance, chemical stability is good, strength is general, but brittle, easy to produce stress cracking, Not resistant to benzene, gasoline and other organic solvents. Suitable for making insulating transparent parts. Decorative parts and chemical instruments. Optical instruments and other parts.
PE is basically divided into three categories, namely high pressure low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE). Film is the main processed product, followed by hollow containers such as sheets and coatings, bottles, cans, barrels, and other various injection and blow molding products, pipes and wires, and insulation and sheathing of cables. Mainly used in packaging, agriculture and transportation sectors.
Pp is cheap, light, good processability and versatile. The development of catalysts and new processes further promotes the expansion of the application field. Some people say: "As long as one product is replaced by plastic, then this product has polypropylene. potential". Main uses: woven bags, tarpaulins, durable consumer goods: such as cars, home appliances and carpets.
What is the difference between PS material and ABS material performance?
Reply:
PS plastic (polystyrene), material properties: electrical insulation (especially high frequency insulation) is excellent, colorless and transparent, light transmittance is second only to plexiglass, coloring water resistance, chemical stability, good strength, However, it is brittle and easy to produce stress and brittle fracture. It is not resistant to organic solvents such as benzene and gasoline. It is suitable for making transparent and transparent parts, decorative parts and chemical instruments, optical instruments and other parts. Formability: 1. Amorphous material, small moisture absorption, no Must be fully dry, not easy to decompose, but the coefficient of thermal expansion is large, easy to generate internal stress. Flowability is good, can be formed by screw or plunger injection machine. 2. High temperature, high mold temperature, low injection pressure, prolonged injection Time is beneficial to reduce internal stress and prevent shrinkage. Deformation. 3. Various types of gates can be used, and the gate is connected with the arc of the plastic part to avoid damage to the plastic parts when the gate is removed. The draft is large and the ejection is uniform. Plastic parts have a uniform wall thickness, preferably without inserts. If there are inserts, they should be preheated.
ABS (acrylonitrile-butadiene-styrene), which is a light yellow granular or beaded opaque resin, non-toxic, odorless, and low in water absorption. It has excellent physical and mechanical properties, excellent low temperature impact resistance, excellent electrical properties, wear resistance, dimensional stability, chemical resistance and dyeability. Easy to shape. ABS is resistant to water, inorganic salts, alkalis and acids. It is insoluble in most alcohols and hydrocarbon solvents and is easily soluble in aldehydes, ketones, esters and certain chlorinated hydrocarbons. The disadvantage of ABS is that it is flammable, the heat distortion temperature is low, and the weather resistance is poor. Burning characteristics: flammable; continue to burn away from fire; flame yellow, thick black smoke; softening, foaming; acrylonitrile flavor. Solubility: Soluble solvent: dichloromethane; insoluble solvent: alcohol, aliphatic hydrocarbon, water. Application: automotive industry, mechanical equipment, electronic appliances, etc.
What is the English code for scrap acrylic? What is the current scrap price?
Reply:
ACRYLIC is a special type of plexiglass.
PMMA is commonly known as plexiglass, also known as acrylic or acrylic. Hong Kong people are called Agaric. It is an important thermoplastic developed earlier. It has good transparency and chemical stability.
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