Chemical Properties Of PMMA

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PMMA的化学性质

PMMA塑料材料

优良的透明度和优异的耐老化性

PMMA具有重量轻、成本低、易于成型的优点

Description

Chemical Properties Of PMMA

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PMMA Plastic Material
Excellent transparency and outstanding aging resistance
PMMA has the advantages of light weight, low cost and easy molding.

Chemical Properties Of PMMA

Product Details

 

Chemical properties of PMMA

Chemical resistance and solvent resistance

 

Polymethyl methacrylate can withstand relatively dilute inorganic acids, but concentrated inorganic acids can make it corrode, and it can be resistant to alkalis, but warm sodium hydroxide and potassium hydroxide can make it corrode and can be salt-resistant And grease, resistant to aliphatic hydrocarbons, insoluble in water, methanol, glycerin, etc., but can absorb alcohol and swell and cause stress cracking. It is not resistant to ketones, chlorinated hydrocarbons and aromatic hydrocarbons. Its solubility parameter is about 18.8 (J/CM3) 1/2, and it can be dissolved in many chlorinated hydrocarbons and aromatic hydrocarbons, such as dichloroethane, trichloroethylene, chloroform, toluene, etc., vinyl acetate and acetone can also make it Dissolve.

Chemical properties of PMMA

Polymethyl methacrylate has good resistance to gases such as ozone and sulfur dioxide.

 

Weather resistance

 

Polymethyl methacrylate has excellent atmospheric aging resistance. After 4 years of natural aging test, the sample has a slight decrease in tensile strength and light transmittance, a slight yellowing in color, and a decrease in crazing resistance. Obviously, the impact strength has been slightly improved, and other physical properties have hardly changed.

 

Combustibility

 

Polymethyl methacrylate is easy to burn, and its limiting oxygen index is only 17.3.

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