石膏粉，一般是高強(qiáng)石膏粉，主要成分就是石膏，是很多其他建筑材料的添加劑，不能單獨(dú)使用，與相應(yīng)材料混合有不同用途。那么濟(jì)南石膏粉四個(gè)常見(jiàn)問(wèn)題要知道，下面來(lái)講講：

Gypsum powder is generally high-strength gypsum powder. The main component is gypsum. It is an additive of many other building materials and cannot be used alone. It can be mixed with corresponding materials for different purposes. Here are four common problems of Jinan gypsum powder:

1、石膏粉為什么在加水后越攪就越稀呢？

1. Why does gypsum powder become thinner after adding water?

纖維素作為一種增稠劑保水劑在膩?zhàn)由蠎?yīng)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(dǎo)致了膩?zhàn)蛹铀螽a(chǎn)生了觸變性。這種觸變性是由于石膏粉中組分呈松散結(jié)合的結(jié)構(gòu)被破壞引起的。這種結(jié)構(gòu)在靜止時(shí)產(chǎn)生，在應(yīng)力作用下拆散。也就是說(shuō)在攪拌下粘度降低，在靜止時(shí)粘度恢復(fù)。

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

2、石膏粉在批刮過(guò)程中比較沉是怎么回事？

2. How is gypsum powder relatively heavy during batch scraping?

出現(xiàn)這種情況一般用的纖維素粘度過(guò)高，有的廠(chǎng)家用20萬(wàn)的來(lái)做石膏粉，這樣做出的石膏粉因粘度偏高，所以在批刮時(shí)出現(xiàn)發(fā)沉的感覺(jué)。內(nèi)墻石膏粉建議添加量為3—5公斤，粘度為8—10萬(wàn)。

In this case, the viscosity of cellulose is generally too high. Some factories use 200000 to make gypsum powder. Because the viscosity of the gypsum powder is too high, it feels heavy during batch scraping. The recommended amount of gypsum powder for interior wall is 3-5kg, and the viscosity is 80000-100000.

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(jué)粘度不一樣？

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

由于產(chǎn)品的熱凝膠性，決定了產(chǎn)品的粘度隨溫度的升高會(huì)逐漸降低的，當(dāng)溫度超過(guò)產(chǎn)品凝膠溫度時(shí)，產(chǎn)品將會(huì)從水中析出的，從而失去粘度。

Due to the thermal gelation 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 be separated from the water, thus losing the viscosity.

4、石膏粉容易出現(xiàn)開(kāi)裂、起泡、脫粉等現(xiàn)象的原因？

4. Why is the gypsum powder prone to cracking, foaming and powder removal?

主要原因基層未干透施工、基底過(guò)于粗糙，批蕩速度過(guò)快、一次施工膩?zhàn)訉舆^(guò)厚，大于2.0mm、膩?zhàn)臃蹝伖鈺r(shí)間掌握不佳。沒(méi)有把握好表面和底層之間的干濕時(shí)間和水分揮發(fā)速度，季節(jié)不同基層和表面的干燥時(shí)間不同所導(dǎo)致。

The main reasons are that the base course is not dry enough, the base is too rough, the swing speed is too fast, the putty layer in one construction is too thick, more than 2.0mm, and the polishing time of putty powder is not well controlled. The failure to grasp the dry and wet time and water volatilization speed between the surface and the bottom layer is caused by the different drying time of the base layer and the surface in different seasons.

石膏粉廣泛用于建筑、建材、工業(yè)模具和藝術(shù)模型、化學(xué)工業(yè)及農(nóng)業(yè)、食品加工和醫(yī)藥美容等眾多應(yīng)用領(lǐng)域，是一種重要的工業(yè)原材料。您有采購(gòu)需求就來(lái)我們網(wǎng)站http://m.daquanq.com.cn咨詢(xún)了解吧。

Gypsum powder is widely used in construction, building materials, industrial molds and art models, chemical industry and agriculture, food processing, medical beauty and many other application fields. It is an important industrial raw material. If you have purchasing needs, please come to our website http://m.daquanq.com.cn Consult and understand.