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有关石膏粉的四个问答事项

来源: 日期:2023-02-18 发布人:

1、石膏粉为什么在加水后越搅就越稀呢?
1. Why does gypsum powder become thinner as it is agitated 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。这种触变性是由于济南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 on 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 loosely combined structure of the components in Jinan gypsum powder. This kind of structure is generated when it is still and is disassembled under the action of 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. What is the reason why gypsum powder is 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 used is usually too high. Some factories use 200000 cellulose to make gypsum powder. Because of the high viscosity, the gypsum powder made in this way has a sinking feeling when scraping. The recommended amount of gypsum powder for interior wall is 3-5 kg, and the viscosity is 8-100000.
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 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、石膏粉容易出现开裂、起泡、脱粉等现象的原因?
4. Why gypsum powder is prone to crack, blister, and desulphurization?
主要原因基层未彻底干透施工、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 completely dry, the base is too rough, the batching speed is too fast, the putty layer is too thick for one-time construction, more than 2.0mm, and the putty powder polishing time is not well controlled. The drying and wetting time and moisture volatilization rate between the surface and the bottom layer are not well controlled, which is caused by the different drying time of the base layer and the surface in different seasons.
有关石膏粉的四个问答事项就讲解到这里了,当然建议您在使用该产品之前要对其进行仔细的了解,才能避免大部分问题的出现。关注我们,了解更多事项!
Here are the four questions and answers about gypsum powder. Of course, it is recommended that you carefully understand the product before using it to avoid most problems. Follow us , learn more!