Some knowledge of acrylic acid.

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Some knowledge of acrylic acid.

Physical and chemical properties:
Density: 1.051g/cm3    Melting point: 13°C    Boiling point: 140.9°C     Flash point: 54°C (CC)      Critical pressure: 5.66MPa      Ignition temperature: 360°C    Upper limit of explosion (V/V): 8.0%      Lower limit of explosion (V/V) : 2.4%     Saturation vapor pressure: 1.33kPa (39.9°C)      Appearance: Colorless liquid      Solubility: Miscible with water, soluble in ethanol, ether

Molecular structure data:
Molar refractive index: 17.23
Molar volume (cm3/mol): 67.7
Isotonic specific volume (90.2K): 162.3
Surface tension (dyne/cm): 32.8
Polarizability (10-24cm3): 6.83

Eight functions and uses of acrylic acid:
1. Polymers are prepared by homopolymerization or copolymerization and are used in coatings, adhesives, solid resins, plastics, etc.

2. Used in resin manufacturing, synthetic rubber emulsion manufacturing and other fields

3. Used in the manufacture of various plastics, coatings, adhesives, elastomers, floor polishes and paints.

4. The size on the yarn is made of acrylic acid, methyl acrylate, ethyl acrylate, acrylonitrile, ammonium polyacrylate and other raw materials. , which is larger than the slurry capacity on polyvinyl alcohol, saving starch.

5. Acrylic acid, methyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate and other copolymerized latex can be used as adhesives for electrostatic flocking and flocking.

6. The water thickener is a high molecular weight powder made of acrylic acid and ethyl acrylate copolymer. It can be used as a thickener in oil fields, and it can increase 500 tons of crude oil per ton of product, and it has a better oil recovery effect on old wells.

7. Coated paper coating adopts acrylic acid, butyl acrylate, 2-ethylhexyl acrylate, styrene and other quaternary copolymer latex as the coated paper coating, which has color retention without yellowing, good printing performance, non-stick roll, and better printing performance than styrene-butadiene Latex is good, can save dry cool element.

8. Polyacrylate can produce various polyacrylate products (such as ammonium salt, sodium salt, potassium salt, aluminum salt, nickel salt, etc.) through acrylic acid. Used as coagulant, water treatment agent, dispersant, thickener , food preservatives, acid and alkali resistant desiccants, softeners and other polymer additives.

 


Post time: May-15-2023