PP means polypropylene. Polypropylene lunch boxes are non-toxic and can be used with confidence as long as they are within the specified temperature range. Polypropylene is non-toxic, odorless, with low density, and superior strength, stiffness, hardness, and heat resistance to low-pressure polyethylene.
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①Ordinary PVC film ②PVC anti-aging film ③PVC drip free anti aging film (PVC double anti aging film) ④PVC weather resistant and drip free dustproof film ⑤PVC resin
PVC toys are generally non-toxic, but their ingredients contain a certain amount of vinyl chloride (VCM), which is a monomer with certain carcinogenicity. If the VCM content in the PVC component is below 1PPM, it proves that it is a non-toxic sanitary grade resin PVC, and this type of toy is harmless to babies.
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Titanium dioxide is widely used in coatings, plastics, rubber, printing ink, paper, chemical fiber, ceramics, daily chemicals, medicine, food and other industries. The coatings are divided into anatase type and rutile type. The non coating titanium dioxide is also divided into enamel grade titanium dioxide, ceramic grade titanium dioxide, electronic ceramic grade titanium dioxide, electrode grade titanium dioxide, alloy grade titanium dioxide, glass grade titanium dioxide, etc.
Rutile titanium dioxide: d on the experience in production quality control of sulfuric acid rutile titanium dioxide, the innovative research on inorganic coating, organic treatment, salt treatment, calcination control, hydrolysis and product application is integrated.
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Nowadays, titanium dioxide is used more and more widely, but what problems should we pay attention to when using rutile titanium dioxide in our ink production field? Now let's take a look at some precautions for the use of titanium dioxide!
PVC plastic sheets are often used in our daily lives. PVC plastic board is a common type of PVC board, widely used in fields such as chemical engineering, construction, packaging, etc.
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The ceramic industry is the earliest and most widely used industry for the application of kaolin. The general dosage is 20% to 30% of the formula. The role of kaolin in ceramics is to introduce Al2O3, which is conducive to the formation of mullite, improving its chemical stability and sintering strength. During sintering, kaolin decomposes into mullite, forming the main work of green body strength, preventing the deformation of products, widening the firing temperature, and also making the green body have a certain whiteness. At the same time, kaolin has certain plasticity, cohesiveness, suspension and bonding ability, which endows porcelain clay and porcelain glaze with good formability, making porcelain clay body conducive to turning, grouting and forming. If used in wires, it can increase insulation and reduce dielectric loss.
Compared with uncalcinated kaolin, low-temperature calcined kaolin has a reduced bound water content, an increase in silica and alumina content, an increase in active sites, a change in structure, a smaller and more uniform particle size. Compared with uncalcinated kaolin filled NR rubber, low-temperature calcined kaolin filled NR rubber has basically the same vulcanization characteristic curve, with unchanged Shore A-type hardness and increased tensile strength, Both physical properties meet the requirements of the industry standard for non transparent sports shoe soles.
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Barium sulfate is used in latex paint and is known as "acid resistant" latex paint. Even when exposed, it has acid resistance. The dispersibility, optical rotation retention, and flowability of barium sulfate can enhance its chemical properties.