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石膏粉四个常见问题要知道

来源: 日期:2022-08-16 发布人:juyehe

石膏粉,一般是高强石膏粉,主要成分就是石膏,是很多其他建筑材料的添加剂,不能单独使用,与相应材料混合有不同用途。那么济南石膏粉四个常见问题要知道,下面来讲讲:
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、石膏粉为什么在加水后越搅就越稀呢?
1. Why does gypsum powder become thinner after adding water?
纤维素作为一种增稠剂保水剂在腻子上应用的,由于纤维素本身的触变性,石膏粉中纤维素的加入也导致了腻子加水后产生了触变性。这种触变性是由于石膏粉中组分呈松散结合的结构被破坏引起的。这种结构在静止时产生,在应力作用下拆散。也就是说在搅拌下粘度降低,在静止时粘度恢复。
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、石膏粉在批刮过程中比较沉是怎么回事?
2. How is gypsum powder relatively heavy during batch scraping?
出现这种情况一般用的纤维素粘度过高,有的厂家用20万的来做石膏粉,这样做出的石膏粉因粘度偏高,所以在批刮时出现发沉的感觉。内墙石膏粉建议添加量为3—5公斤,粘度为8—10万。
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.
济南石膏粉
3、冬天和夏天用同样的粘度纤维素做出的石膏粉和砂浆为什么感觉粘度不一样?
3. Why do gypsum powder and mortar made of cellulose with the same viscosity feel different in winter and summer?
由于产品的热凝胶性,决定了产品的粘度随温度的升高会逐渐降低的,当温度超过产品凝胶温度时,产品将会从水中析出的,从而失去粘度。
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、石膏粉容易出现开裂、起泡、脱粉等现象的原因?
4. Why is the gypsum powder prone to cracking, foaming and powder removal?
主要原因基层未干透施工、基底过于粗糙,批荡速度过快、一次施工腻子层过厚,大于2.0mm、腻子粉抛光时间掌握不佳。没有把握好表面和底层之间的干湿时间和水分挥发速度,季节不同基层和表面的干燥时间不同所导致。
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.
石膏粉广泛用于建筑、建材、工业模具和艺术模型、化学工业及农业、食品加工和医药美容等众多应用领域,是一种重要的工业原材料。您有采购需求就来我们网站咨询了解吧。
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 Consult and understand.