Maleic Anhydride (MA) Applications
As a professional acrylic acid supplier, Shanghai DouwinChemical Co. Ltd. provides chemical materials to all worldwide customers at high quality and competitive prices. Douwin aims to be a famous brand and then becomes the most smooth bridge on the industry chain.
UPR
Unsaturated polyester resin refers to the polycondensation reaction of diacids and diols to form a polymer containing unsaturated double bonds.
Specifications of UPR
Unsaturated polyester resin is a kind of thermosetting resin, when it is in the action of heat or initiator, can be cured into a kind of insoluble and insoluble polymer network polymer. However, the polymer has low mechanical strength and cannot meet the requirements of most applications. When reinforced with glass fiber, it can become a composite material, commonly known as "fiberglass". Compared with resin casting, the mechanical strength and other properties of FRP have been greatly improved.
How is Maleic Anhydride Applied to UPR?
UPR is made up of styrene, pp grafted maleic anhydride, PA, DEG, propylene glycol, ethylene glycol, and others.
The maleic anhydride usesin a variety of industries, such as composite materials, wood paint, quartz, marble and artificial cement.
Hydrolytic Polymerizd Maleic Anhydride
HPMA is low molecular weight maleic anhydride derivativeswith a general relative molecular weight of 400~800, non-toxic, easily soluble in water, high chemical stability and thermal stability, decomposition temperature above 330℃. The product can also be used for cement additives.
Specifications of HPMA
Maleic anhydride (MAH) hydrolyzed into polymaleic anhydride (HPMA), it is an orange viscous liquid, relative density is 1.2 (20℃), average molecular weight is about 600, acidic, can ionize, soluble in cold water. This product is non-toxic.
How is Maleic Anhydride Applied to HPMA?
HPMA is made up of acrylic acid, hydrogen peroxide, and maleic anhydride and water.
Maleic anhydride graftedis used in various industries, such as industrial coatings, textile finishes, photosensitive materials, architectural coatings, etc.
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