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Polycarboxylic acid-based high-performance water-reducers such as PCE are different from Naphthalene-based high-performance water-reducers such as SNF in that: first, the diversity and adjustability of molecular structure; second, to further concentrate and improve the advantages of high-efficiency water-reducers The process is green and pollution-free.
From the mechanism of action, the molecular structure of Polycarboxylate Superplasticizer is comb-shaped, and the strong polar anion "anchor" group in the main chain is used to adsorb on the cement particles, and the outwardly extending comb supported by many branch chains The tooth structure provides a sufficient spatial arrangement effect for the further dispersion of cement particles. Compared with the electrical repulsion of the electric double layer of the naphthalene-based water reducer, the steric hindrance keeps the dispersion much longer.
Appropriately changing the comb structure of Polycarboxylate Superplasticizer, so that the side chain density and length can be appropriately changed, can obtain a high water reducing and high early strength superplasticizer suitable for prefabricated components.
Polycarboxylate water reducers can be adjusted and changed according to requirements to achieve the purpose of changing performance, instead of modifying by simple compounding. Based on this understanding, it may inspire us to improve our future application technology.
Tips of application of polycarboxylate high-performance water reducer(VII)
Tips of application of polycarboxylate high-performance water reducer(VI)
Tips of application of polycarboxylate high-performance water reducer(V)
Tips of application of polycarboxylate high-performance water reducer(IV)
Tips of application of polycarboxylate high-performance water reducer(III)
Tips of application of polycarboxylate high-performance water reducer(II)
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Descargar la introduccion
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Sodium Naphthalene formaldehyde loaded today for PT.Kao indonesia on this weekend vessel.
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