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Disclosure of a method of surface cross-linking highly neutralized superabsorbent polymer particles using Bronstedt acids
Disclosure of a method of surface cross-linking highly neutralized superabsorbent polymer particles using Bronstedt acids
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机译:公开了使用布朗斯台德酸的表面交联高度中和的超吸收性聚合物颗粒的方法
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摘要
The present invention relates to a method of surface cross-linking superabsorbent polymer particles using UV irradiation. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Radical former molecules are applied on the surface of superabsorbent polymer particles. These superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method of the present invention is able to emit UV radiation of a wavelength between 201 nm and 400 nm.
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