The little secret of putty powder is that the rubber powder and additives in putty powder determine whether the putty powder is good for construction, crack resistance and waterproof, so let's briefly introduce these additives and their functions today.

纖維素醚是膩?zhàn)臃鄣闹饕砑觿┠z粉 纖維素醚用作增稠劑和保水劑。雖然添加比例非常低（0.02%-0.7%），但作用非常重要。膩?zhàn)臃壑惺褂玫睦w維素醚主要是甲基羥乙基纖維素醚（MHEC）和甲基羥丙基纖維素醚。簡(jiǎn)稱MC，MC特性：粘著性和施工性這是兩個(gè)互相影響的因素；保水性，避免水分的快速蒸發(fā)，使得砂漿層的厚度能顯著降低。

Cellulose ether is the main additive of putty powder. Rubber powder cellulose ether is used as thickener and water retaining agent. Although the addition ratio is very low (0.02% - 0.7%), it plays a very important role. The cellulose ethers used in putty powder are mainly methyl hydroxyethyl cellulose ether (MHEC) and methyl hydroxypropyl cellulose ether. MC for short, MC characteristics: adhesion and constructability, which are two factors affecting each other; Water retention, avoid rapid evaporation of water, and significantly reduce the thickness of mortar layer.

1、淀粉醚：能增加砂漿稠度。

1. Starch ether: it can increase the consistency of mortar.

2、引氣劑：通過物理作用在砂漿中引入微氣泡，降低砂漿密度，施工性更好。主要是脂肪磺酸鈉鹽和硫酸鈉鹽加入比例為0.01%-0.06%。

2. Air entraining agent: micro bubbles are introduced into the mortar through physical action to reduce the mortar density and improve the workability. It is mainly sodium fatty sulfonate and sodium sulfate, with the addition ratio of 0.01% - 0.06%.

3、保凝劑：用它來獲得預(yù)期的凝結(jié)時(shí)間。常用甲酸鈣，加入比例為0.5%-2.5%。

3. Coagulant: use it to obtain the expected setting time. Calcium formate is commonly used, and the addition ratio is 0.5% - 2.5%.

4、緩凝劑：主要應(yīng)用于石膏灰漿和石膏基填縫料中。主要是果酸鹽類，通常在0.05%-0.25%。

4. Retarder: mainly used in gypsum mortar and gypsum based joint filler. Mainly fructates, usually 0.05% - 0.25%.

5、疏水劑（防水劑：可防止水滲入到砂漿中，同時(shí)砂漿仍能保持敞開狀態(tài)以進(jìn)行水蒸氣擴(kuò)散。主要用具有疏水性的聚合物可再分散粉末，特點(diǎn)是在多年后也不會(huì)被雨水從灰漿中沖洗掉，所以具有使用壽命明顯延長(zhǎng)的優(yōu)點(diǎn)，并提高了硬化砂漿與基材之間的粘接力。

5. Hydrophobic agent (waterproof agent): it can prevent water from penetrating into the mortar, and the mortar can still remain open for water vapor diffusion. It mainly uses hydrophobic polymer redispersible powder, which is characterized in that it will not be washed away from the mortar by rainwater after many years, so it has the advantage of significantly prolonging the service life and improving the adhesive force between the hardened mortar and the substrate.

6、超塑化劑：主要用在有較高要求的自流平干粉砂漿中。

6. Superplasticizer: mainly used in self leveling dry powder mortar with high requirements.

7、纖維分為長(zhǎng)纖維和短纖維。長(zhǎng)纖維主要用于增強(qiáng)和加固；短纖維用來影響改善砂漿的性能和需水量。

7. Fibers are divided into long fibers and short fibers. Long fiber is mainly used for reinforcement and reinforcement; Short fibers are used to improve the performance and water demand of mortar.

8、消泡劑：主要用來降低砂漿中的空氣含量。主要用無機(jī)載體上的碳?xì)浠衔铩⒕垡叶嫉绕渌奶砑觿┻€有顏料、增稠劑、增塑劑等。

8. Defoamer: mainly used to reduce the air content in mortar. It mainly uses hydrocarbons, polyethylene glycol and other additives on inorganic carriers, as well as pigments, thickeners, plasticizers, etc.

9、觸變潤(rùn)滑劑：改善砂漿觸變性和潤(rùn)滑性，延長(zhǎng)施工開放時(shí)間以及抗流掛性，常規(guī)產(chǎn)品為L(zhǎng)BCB-1觸變潤(rùn)滑劑用量0.3-0.5%。

9. Thixotropic lubricant: improve the thixotropy and lubricity of mortar, prolong the construction opening time and sagging resistance. The conventional product is lbcb-1, and the amount of thixotropic lubricant is 0.3-0.5%.