What are the factors that affect the performance of putty powder for internal and external walls? Today we will talk about this problem.

一、粉煤灰用量對內(nèi)外墻膩?zhàn)臃坌阅艿挠绊懀弘S著粉煤灰用量增加，膩?zhàn)诱辰Y(jié)強(qiáng)度逐漸降低;當(dāng)粉煤灰用量達(dá)30%以上時，強(qiáng)度降低相對較快。另外，隨著粉煤灰用量增大，膩?zhàn)邮┕ば阅苡兴纳啤＞C合考慮，粉煤灰用量可控制在20%～30%范圍內(nèi)。

1、 The influence of fly ash content on the performance of putty powder for internal and external walls: with the increase of fly ash content, the adhesive strength of putty gradually decreases; when the amount of fly ash is more than 30%, the strength decreases relatively quickly. In addition, with the increase of fly ash dosage, the construction performance of putty is improved. Comprehensive consideration, the amount of fly ash can be controlled in the range of 20% - 30%.

二、水泥對內(nèi)外墻膩?zhàn)臃鄣男阅艿挠绊懀涸谒淖饔孟拢嗤ㄟ^反應(yīng)形成交聯(lián)網(wǎng)狀結(jié)構(gòu)，因而能賦予膩?zhàn)痈哒辰Y(jié)強(qiáng)度。當(dāng)水泥用量達(dá)15%后，再增加水泥用量，膩?zhàn)臃鄣恼辰Y(jié)強(qiáng)度增加較緩慢。同時，水泥用量過大，易引起膩?zhàn)幽由踔帘砻嫱繉悠鹆鸭y。因此水泥用量控制在10%～40%范圍較好。

2、 The effect of cement on the properties of putty powder for internal and external walls: under the action of water, the cement reacts to form a cross-linked network structure, which can endow the putty with high bond strength. When the amount of cement reaches 15%, the bond strength of putty powder increases slowly with the increase of cement content. At the same time, if the amount of cement is too large, it is easy to cause cracks in the putty film and even the surface coating. Therefore, it is better to control the cement dosage in the range of 10% - 40%.

三、乳膠粉對內(nèi)外墻膩?zhàn)臃坌阅艿挠绊懀弘S著乳膠粉用量的增加，膩?zhàn)诱辰Y(jié)強(qiáng)度逐步增大;乳膠粉用量在2.5%以下，膩?zhàn)诱辰Y(jié)強(qiáng)度隨乳膠粉用量增加較明顯;乳膠粉用量在2.5%以上，膩?zhàn)诱辰Y(jié)強(qiáng)度隨乳膠粉用量增加的幅度較小。由于隨著乳膠粉用量的增加，膩?zhàn)拥某杀驹龃螅⒂袑?dǎo)致施工性變差的可能，因而乳膠粉的用量在2.5%～3.5%范圍內(nèi)較佳。

3、 The influence of latex powder on the properties of putty powder for internal and external walls: with the increase of the amount of latex powder, the adhesive strength of putty increases gradually; when the amount of latex powder is less than 2.5%, the adhesive strength of putty increases obviously with the amount of latex powder; when the amount of latex powder is more than 2.5%, the increase range of putty bond strength with the amount of latex powder is small. Because the cost of putty increases with the increase of the amount of latex powder, and the construction performance may be worse, so the dosage of latex powder is better in the range of 2.5% - 3.5%.

另外，隨著乳膠粉用量增加，膩?zhàn)幽痈刹料促|(zhì)量損失逐漸減少，當(dāng)乳膠粉用量達(dá)2.5%以上時，膩?zhàn)幽淤|(zhì)量損失趨于穩(wěn)定，且質(zhì)量損失很小。這主要是由于當(dāng)乳膠粉達(dá)到此用量時，乳膠粉分散成膠液后能很好地將顏填料與基材粘結(jié)起來。

In addition, with the increase of the amount of latex powder, the dry scrubbing mass loss of putty film gradually decreases. When the amount of latex powder is more than 2.5%, the quality loss of putty film tends to be stable and the quality loss is very small. This is mainly due to the fact that when the amount of latex powder reaches this level, the pigment and filler can be well bonded with the substrate after being dispersed into a glue solution.