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P.S. polystyrene.
The chemical stability is relatively poor, it can be dissolved by a variety of organic solvents (such as: aromatic hydrocarbons, halogenated hydrocarbons, etc.), will be corroded by strong acids and alkalis, is not resistant to grease, and is easy to change color after being irradiated by ultraviolet light. When burned, a large amount of carbon monoxide is produced.
Or carbon dioxide.
Take care to prevent poisoning.
Physical. Polystyrene is hard and brittle, colorless and transparent, and can be mixed with a variety of dyes to produce different colors. Density:
PP is heat-resistant, corrosion-resistant, and the products can be sterilized by steam is its outstanding advantage. With its low density, it is the lightest general-purpose plastic. The disadvantage is that the low temperature impact resistance is poor and it is easy to age, but it can be overcome by modification.
Modified plastics, it is recommended to refer to [Jusailon Engineering Plastics] shares.
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Sorry, we can't provide information about PP PS vinegar water, but we can provide polymer vinegar water.
There are many types of polymer materials, among which polyethylene or polypropylene can be made into food bags, which can be soaked in vinegar water.
Vinegar is a weak acid that does not have a noticeable effect on polymer materials. At room temperature and pressure, food bags made of polyethylene or polypropylene are soaked in vinegar water and will not dissolve or deform.
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The PP material does not react with acid and alkali, so PS does not know.
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Some people often put the bottle after drinking.
It is used as a spice bottle for vinegar. This practice may seem like waste reuse, but it is actually harmful to health.
Professor Lin Lirong of the Department of Chemistry of Xiamen University pointed out that plastic products will slowly release toxic substances when they encounter acids, which are harmful to the human body and are not easy to be detected by people, so they must not be used for a long time. Most of the beverage bottles are made of plastic, mainly made of polyethylene.
or polypropylene and other materials and added a variety of organic solvents. Polyethylene and polypropylene are non-toxic and tasteless, and are safe for the human body when used to fill beverages. However, once polyethylene is corroded by high temperature or acid, it will slowly dissolve and release organic solvents, which will cause harm to the human body.
It has been reported that long-term consumption of food contaminated with polyethylene molecules can cause dizziness.
Headaches, nausea, loss of appetite, memory loss, etc., and even anemia.
Therefore, using plastic bottles for vinegar is harmful to human health but not beneficial.
Professor Lam suggested that glassware could be used in the home instead of plastic products for spices, etc. When using plastic products, special attention should be paid to avoid contact with vinegar, detergents, etc., and avoid direct sunlight, high temperature, etc., so as to avoid chemical reactions.
In addition, when you buy plastic tableware, you should choose plastic products with PE (polyethylene) or PP (polypropylene) labeling, less decorative patterns, colorless and odorless, and a smooth surface. (**: China Food Investment Network).
PP plastic raw material, chemical name: polypropylene, English name: polypropylene (PP) Features:
The density, strength, stiffness, hardness and heat resistance are better than those of low-pressure polyethylene, and it can be used at about 100 degrees. It has good electrical properties and high-frequency insulation, which is not affected by humidity, but becomes brittle, wear-resistant, and easy to age at low temperatures. It is suitable for making general mechanical parts, corrosion-resistant parts and insulating parts.
So no, not for a long time.
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PP raw material ** business reminds you that PP (polypropylene) has good chemical stability, in addition to being eroded by concentrated sulfuric acid and concentrated nitric acid, it is relatively stable to various other chemical reagents, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can soften and swell polypropylene, and its chemical stability is improved with the increase of crystallinity, so polypropylene is suitable for making various chemical pipelines and fittings, and the anti-corrosion effect is good. Salt and vinegar do not corrode PP material.
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The abbreviation of polymer materials is based on the abbreviation of English, such as: polyethylene is abbreviated as PE polyethylene.
And the general polymer materials are mostly polymers, also known as polymers, so the general non-composite materials mostly start with P.
It is more correct to query through more formal literature, such as books--- polymers, polymer materials, etc., which are used in universities.
Of course, it would be good if it was a common polymer material.
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Hello, plastic products manufacturers said that plastic products No. 5 means polypropylene, common soybean milk bottles, yogurt bottles, juice drink bottles, microwave oven lunch boxes. With a melting point of 167, it is a plastic box that can be put in the microwave oven and can be reused after careful cleaning.
Vinegar is acidic, acidic, and chemically reacts with plastics, which is not suitable. It should not be put for a long time, it is best to use *** porcelain, glass, followed by metal containers.
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ABS is synthesized from three chemical monomers: acrylonitrile, butadiene and styrene. Each monomer has different properties: acrylonitrile has high strength, thermal stability and chemical stability; Butadiene has toughness and impact resistance; Styrene has easy processing, high finish and high strength.
Polypropylene PP is also very resistant to acids, and in addition to strong oxidizing agents and non-polar solvents, PP is highly resistant to chemical attack. For example, fuming nitric acid or hot concentrated sulfuric acid can degrade PP, but a solution with a lower concentration is harmless to PP.
However, the rigidity of ABS is very strong, and the rigidity is easy to break, and ABS contains more or less acrylonitrile monomer, which is a highly toxic substance ......Therefore, it is recommended to use a bathtub made of PP material.
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