r902 tio2

The leaching of the electrolytic zinc acid leaching slag: 1500 ml of ammonia-ammonium sulphate solution is used as the ammonia immersion liquid, wherein the ammonia concentration is 6. Omol / ammonium sulfate molar concentration is 0. 9mol / L, added per cubic meter of ammonia immersion liquid 0. 075kg of sodium dodecylbenzenesulfonate, 0. 45kg of sodium fluorosilicate, 0.75kg of dicyandiamide. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 %), added to the above ammonia-ammonium sulfate immersion liquid for three-stage leaching, each leaching time is 2 hours, after solid-liquid separation, 1450ml final immersion liquid (taken away in the remaining liquid slag), zinc leaching The rate of 90. 02%; the final solution containing zinc 65. 6g / L; containing S0 4 2 - 69. 64g / L ;

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r902 tio22025-08-14 15:50
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Pure PVB is non-toxic and harmless to human body. In addition, ethyl acetate or alcohol can be used as solvent, so PVB is widely used in printing ink of food containers and plastic packaging in European and American countries.

Storage safety properties

PVB can be stored for two years without affecting its quality as long as it is not in direct contact with water; PVB shall be stored in a dry and cool place and avoid direct sunlight. Heavy pressure shall be avoided during PVB storage.

Solubility

PVB is soluble in alcohol, ketone, ester and other solvents. The solubility of various solvents changes according to the functional group composition of PVB itself. Generally speaking, alcohol solvents are soluble, but methanol is more insoluble for those with high acetal groups; The higher the acetal group, the easier it is to dissolve in ketone solvents and ester solvents;

PVB is easily soluble in cellosolve solvents; PVB is only partially dissolved in aromatic solvents such as xylene and toluene; PVB is insoluble in hydrocarbon solvents.

Viscosity characteristics of PVB solution

The viscosity of PVB solution is greatly affected by the formula of solvent and the type of solvent; Generally speaking, if alcohol is used as solvent, the higher the molecular weight of alcohol, the higher the viscosity of PVB solution;

Aromatic solvents such as xylene and toluene and hydrocarbon solvents can be used as diluents to reduce the viscosity of PVB solution; The effect of PVB chemical composition on viscosity is summarized as follows: under the same solvent and the same content of each base, the higher the degree of polymerization, the higher the solution viscosity; Under the same solvent and the same degree of polymerization, the higher the acetal group or acetate group, the lower the solution viscosity.

Dissolution method of PVB

Where mixed solvents are used, the dissolution step is to first put aromatic solvents (such as xylene, toluene, etc.) or ester solvents (such as n-butyl acetate, ethyl acetate, etc.) into the mixing, slowly put PVB into the mixing, and then add alcohol solvents (such as n-butanol, ethanol, etc.) after PVB is dispersed and expanded,

At this time, the dissolution time can be shortened by heating; Using this dissolution method, the formation of lumpy PVB can be avoided (because the dissolution time will be several times after the formation of lumpy PVB), so the dissolution speed can be accelerated. Generally, the ratio of aromatic and alcohol solvents is 60 / 40 ~ 40 / 60 (weight ratio), and PVB solution with low viscosity can be prepared.

The solvent composition contains 2 ~ 3wt% water, which can improve the hydrogen bonding strength of alcohol solvents and help the solubility of PVB.

Processing properties

Although PVB resin is a thermoplastic, it has little processability before plasticizer is added. Once plasticizer is added, its processability is very easy.

The purpose of general coatings and adhesives is to change the resin characteristics by adding plasticizers to meet the application requirements, such as film softness, reducing the TG point of the resin, reducing the heat sealing temperature, maintaining low-temperature softness, etc.

Compatibility

PVB can be compatible with a variety of resins, such as phenolic resin, epoxy resin, alkyd resin and MELAMINE resin.

B-08sy, b-06sy and b-05sy with high acetal degree can be mixed with nitrocellulose in any proportion. PVB and alkyd resin are partially compatible. General PVB is compatible with low molecular weight epoxy resin, while high molecular weight epoxy resin needs PVB with high acetal degree to be compatible with each other.

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r902 tio22025-08-14 15:39
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Overall, finding an excellent white TiO2 supplier is essential for businesses seeking to achieve the best results in their products. By prioritizing factors such as product quality, reliability, sustainability, and customer support, businesses can ensure that they are working with a supplier that can meet their needs and contribute to their success. With the right supplier by your side, you can confidently incorporate high-quality TiO2 into your products and differentiate yourself in the market.

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r902 tio22025-08-14 14:37
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  • What is Flex Seal Flex Tape?


  • 3M Super 33+ Vinyl

  • How to Apply Butyl Weather Stripping


  • Butyl Tape Wrapped Up

  • 2. The tapes can be used to bundle wires, cables, and other components together, keeping them organized and preventing them from tangling or getting damaged.
  • Floor Line Tape in Construction

  • Clean and easy removal from product material due to the absence of gum.

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  • Machines and motors which run hot

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  • What is 50mm Black Insulation Tape?


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  • Window glazing tape (15063B) is a closed-cell, double-coated foam tape with a poly liner. The tape is one-sixteenth of an inch thick, widths range from one-fourth of an inch (6 millimeters) to one inch (24 millimeters), and it is available in black or white. Window glazing tape (15123B) is a thicker option at one-eighth of an inch thick.

  • Backing construction, thickness, and dielectric strength are factors of a tape’s grade. The grade is highly indicative of its performance quality. Tape backings are either monomeric or polymeric, polymeric being the more durable of the two.

  • Industrial Floor Marking Tape A Crucial Element in Workplace Safety and Efficiency

  • Hobbyists and DIY tech enthusiasts often need to build control boxes for their projects as well. For a different perspective on what a control box can do, take a look at Bike Connect , a fascinating technology developed by bike enthusiasts in Portland, OR. This cool technology promises to smooth traffic flows that can be hostile to cyclists by using control boxes mounted on stop lights.

  • In conclusion, PVC floor masking tape is a simple yet effective solution for maintaining cleanliness and precision during home renovation tasks. Its waterproof properties, strong adhesion, and easy removal process make it an essential item in any painter's or decorator's toolkit. By using this specialized tape, homeowners and professionals can ensure that their projects turn out looking polished and professional, with crisp lines and protected surfaces.
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  • In today's fast-paced world, we often find ourselves in need of a quick and reliable solution for various tasks. Whether it's fixing a leaky pipe, attaching a poster to a wall, or even securing cables, having the right tool at hand can make all the difference. That's where Flex Tape Mini Black comes into play.
  • Fireproof tape, as the name suggests, is a specialized type of tape designed to withstand high temperatures and resist flame propagation. It is made from heat-resistant materials like fiberglass or silicone, ensuring it doesn't ignite or melt under intense heat, thereby playing a pivotal role in preventing accidental fires around fireplaces.

  • Factors to Consider When Designing a Control Box

  • Some of the most common applications of PVC floor tape include marking aisles and walkways, designating work areas, and warning employees of potential hazards. The tape can also be used to create custom floor graphics, such as company logos and safety signs, to enhance the appearance of any space.
  • Firstly, understanding the composition of rubber insulation tape is crucial. It is primarily made from a durable elastomeric material, which provides excellent flexibility and conformability. The rubber base, usually synthetic or natural, is combined with a sticky adhesive that adheres firmly to surfaces, creating a reliable seal against moisture, dust, and other environmental factors. The tape's thickness and tensile strength contribute to its ability to withstand high voltage and mechanical stress, making it ideal for electrical insulation.