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导致腻子粉反稠假凝的因素是什么?

来源:https://www.jnfhjc.com 日期:2021-10-12 发布人:juyehe

灰钙基的耐水腻子中,作为石灰精加工产品–灰钙粉(主要成分是Ca(OH)2、CaO和少量CaCO3的混合物)中的Ca(OH)2与空气中的CO2发生反应后,产生结晶碳酸钙。碳酸钙晶体形成的过程中构成紧密交织的结晶网,从而使浆体强度提高,另外,由于碳酸钙的固相体积比氢氧化钙的固相体积稍有加大,故使硬化的浆体更趋坚固。

In the lime calcium based water-resistant putty, as a lime finishing product, Ca (OH) 2 in lime calcium powder (the main component is the mixture of Ca (OH) 2, Cao and a small amount of CaCO3) reacts with CO2 in the air to produce crystalline calcium carbonate. In the process of calcium carbonate crystal formation, a closely intertwined crystal network is formed, so as to improve the strength of the slurry. In addition, the solid volume of calcium carbonate is slightly larger than that of calcium hydroxide, so the hardened slurry becomes stronger.
济南腻子粉厂家
Jinan putty powder manufacturer
由以上可以看出灰钙基耐水腻子,质量好坏就是灰钙质量一定好,氢氧化钙含量达到要求,氧化钙含量越低越稳定,腻子不反粘反稠变硬沉淀,不开裂脱粉。氧化钙含量高会直接影响纤维素保水直接影响纤维素的添加量,使做出来的腻子粉反稠,灰钙中氧化钙含量高说明生产灰钙时生石灰没有熟透,其他重金属离子含量越低越好,避免收光时表面发黑。
It can be seen from the above that the quality of gray calcium based water-resistant putty is that the quality of gray calcium must be good. The content of calcium hydroxide meets the requirements. The lower the content of calcium oxide, the more stable it is. The putty does not anti stick, thicken, harden and precipitate, and does not crack and de powder. The high content of calcium oxide will directly affect the water retention of cellulose, directly affect the addition amount of cellulose, and thicken the putty powder. The high content of calcium oxide in lime calcium indicates that the quicklime is not mature when producing lime calcium, and the lower the content of other heavy metal ions, the better, so as to avoid blackening the surface during light receiving.
其次重钙粉(双飞粉),碳酸钙含量80%以上,其他伴生矿粉和杂质少,白度达到90%以上和细度325目以上,含有铝离子和其他活性矿物,甚至重钙厂往里面有生石灰,容易和纤维素产生凝聚,使纤维素保水失效,腻子膏体变稠变硬,表面粗糙,没有细腻光滑油亮的感觉。
Secondly, heavy calcium powder (Shuangfei powder) contains more than 80% calcium carbonate, less other associated mineral powder and impurities, with whiteness of more than 90% and fineness of more than 325 mesh. It contains aluminum ions and other active minerals. Even there is quicklime in the heavy calcium plant, which is easy to agglomerate with cellulose, resulting in failure of water retention of fibronectin, thickening and hardening of putty paste and rough surface, No delicate, smooth and shiny feeling.
济南腻子粉批发
Jinan putty powder wholesale
其次如果纤维素质量不好也会导致腻子粉反稠假凝,纤维素引起的腻子粉假凝反稠是因为纤维素中的一些成分发生反应所导致,和阳光直射,温度没有关系,并不是说用有问题的纤维素做出的腻子粉放在阳光下就反稠放在阴凉处就不会反稠,而是只要加水调成膏状后过段时间就会变稠假凝。请记清只是变稠假凝,如果腻子膏体变得又干又涩没有多数是生产灰钙时灰钙没有熟透所致,偶尔也和重钙中的杂质有关。
Secondly, if the quality of cellulose is poor, it will also lead to the anti thickening and anti thickening of putty powder. The pseudo thickening and anti thickening of putty powder caused by cellulose is caused by the reaction of some components in cellulose, which has nothing to do with direct sunlight and temperature. It does not mean that the greasy powder made of problematic cellulose will be anti thickened in the sun and will not be anti thickened in the shade, But as long as you add water to make it into a paste, it will thicken and solidify after a period of time. Please remember that it is only thickening and false coagulation. If the putty paste becomes dry and astringent, it is not mostly caused by the lack of maturity of gray calcium during the production of gray calcium, and occasionally related to the impurities in heavy calcium.