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石膏粉的4個常見問答

來源：http://www.wavc.cn 日期：2023-06-29 發布人：

1、石膏粉為什么在加水后越攪就越稀呢？

1. Why does gypsum powder become thinner as it is stirred with water?

纖維素作為一種增稠劑保水劑在膩子上應用的，由于纖維素本身的觸變性，石膏粉中纖維素的加入也導致了膩子加水后產生了觸變性。這種觸變性是由于石膏粉中組分呈松散結合的結構被破壞引起的。這種結構在靜止時產生，在應力作用下拆散。也就是說在攪拌下粘度降低，在靜止時粘度恢復。

Cellulose is used on putty as a thickening agent and water retaining agent. Due to the Thixotropy of cellulose itself, the addition of cellulose in gypsum powder also leads to the Thixotropy of putty after adding water. This Thixotropy is caused by the destruction of the loosely bound structure of the components in the gypsum powder. This structure is generated at rest and disintegrates under stress. That is to say, the viscosity decreases under stirring and recovers at rest.

2、濟南石膏粉在批刮過程中比較沉是怎么回事？

2. What is the reason why Jinan gypsum powder is relatively heavy during the batch scraping process?

出現這種情況一般用的纖維素粘度過高，有的廠家用20萬的來做石膏粉，這樣做出的石膏粉因粘度偏高，所以在批刮時出現發沉的感覺。內墻石膏粉建議添加量為3—5公斤，粘度為8—10萬。

In this situation, the viscosity of the cellulose used is generally too high. Some factories use 200000 yuan to make gypsum powder, and the gypsum powder produced in this way has a sinking feeling during batch scraping due to its high viscosity. The recommended amount of gypsum powder for interior walls is 3-5 kilograms, with a viscosity of 80000 to 100000.
濟南石膏粉

3、冬天和夏天用同樣的粘度纖維素做出的石膏粉和砂漿為什么感覺粘度不一樣？

3. Why do gypsum powder and mortar made of the same viscosity cellulose feel different in winter and summer?

由于產品的熱凝膠性，決定了產品的粘度隨溫度的升高會逐漸降低的，當溫度超過產品凝膠溫度時，產品將會從水中析出的，從而失去粘度。

Due to the thermal gelling property of the product, the viscosity of the product will gradually decrease with the increase of temperature. When the temperature exceeds the gel temperature of the product, the product will precipitate from the water, thus losing the viscosity.

4、石膏粉容易出現開裂、起泡、脫粉等現象的原因？

4. What are the reasons why gypsum powder is prone to cracking, foaming, and peeling?

主要原因基層未有效干透施工、基底過于粗糙，批蕩速度過快、一次施工膩子層過厚，大于2.0mm、膩子粉拋光時間掌握不佳。沒有把握好表面和底層之間的干濕時間和水分揮發速度，季節不同基層和表面的干燥時間不同所導致。

The main reasons are that the base layer is not completely dry during construction, the base is too rough, the batch speed is too fast, the putty layer for one-time construction is too thick, larger than 2.0mm, and the putty powder polishing time is not well controlled. The failure to grasp the dry and wet time and moisture evaporation rate between the surface and bottom layer is caused by different seasons and different drying times for the base layer and surface.

石膏粉的4個常見問答相關事項就講解到這里了，希望能夠給您好的幫助，更多事項就來我們網站http://www.wavc.cn咨詢吧！

That's all for the 4 common Q&A related matters of gypsum powder. I hope it can be helpful to you. For more information, please come to our website http://www.wavc.cn Consult!

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