膩?zhàn)臃凼墙ㄖb飾材料的一種，主要成分是滑石粉和膠水。 剛剛購置的毛坯房表面的一層白色是膩?zhàn)樱ǔＤ佔(zhàn)拥陌锥仍?0以上細(xì)度在330以上。
Putty powder is a kind of building decoration materials, the main components are talcum powder and glue. A layer of white putty on the surface of the blank room just purchased is putty. Generally, the whiteness of putty is above 90 and the fineness is above 330.
許多膩?zhàn)臃凼褂谜卟坏貌怀姓J(rèn)，膩?zhàn)幽z粉脫粉是一個(gè)很嚴(yán)重的問題，它會(huì)引起乳膠漆的脫落，以及膩?zhàn)訉拥钠鸸模芽p，進(jìn)而引起乳膠漆飾面發(fā)生裂縫。
Many users of putty powder have to admit that it is a very serious problem to remove the powder from the putty powder, which will cause the latex paint to fall off, and the putty layer to bulge and crack, and then cause the emulsion paint surface to crack.
膩?zhàn)臃勖摲鄣舴邸⒌舭资悄壳俺Ｒ姷哪佔(zhàn)邮┕ず髥栴}，要了解膩?zhàn)臃勖摲鄣脑颍紫纫私饽佔(zhàn)臃鄣幕驹牧辖M分與固化原理，然后結(jié)合膩?zhàn)邮┕r(shí)的墻面干燥程度、吸水率，溫度、天氣干燥程度等。今天膩?zhàn)臃蹚S家小編談一談膩?zhàn)臃鄣舴鄣闹饕颍黄饋砜纯窗?
It is a common problem after the putty construction that the putty powder degrades and whitens. To understand the reasons of the putty powder removing powder, we should first understand the basic raw material composition and curing principle of the putty powder, and then combine the dryness degree of the wall surface, water absorption rate, temperature and weather dryness degree during the putty construction. Today's putty powder manufacturers to talk about the putty powder powder off the main reason, let's have a look!
![濟(jì)南膩?zhàn)臃? src=]()
原因一
Reason one
膩?zhàn)拥恼辰Y(jié)強(qiáng)度不夠造成脫粉，生產(chǎn)廠家一味的降低成本，膠粉的粘結(jié)強(qiáng)度差，添加量較小，特別是內(nèi)墻膩?zhàn)樱辰Y(jié)強(qiáng)度的大小，脫粉不脫粉和膠粉以及膠水的質(zhì)量和添加量有很大關(guān)系。
The adhesive strength of putty is not enough, which leads to powder shedding. The manufacturers blindly reduce the cost. The adhesive strength of rubber powder is poor, and the addition amount is small, especially for the putty of interior wall. The size of bonding strength and the quality and amount of glue powder and glue have a great relationship.
原因二
Reason two
設(shè)計(jì)配方不合理，選材的問題和結(jié)構(gòu)的問題，在膩?zhàn)优浞街泻苤匾１热缌u丙基甲基纖維素(HPMC)做內(nèi)墻不防水的膩?zhàn)樱琀PMC雖然很貴，但對(duì)雙飛粉，滑石粉，硅灰石粉等填充料不起作用，如果僅使用HPMC就會(huì)引起脫粉，而價(jià)格低的CMC、CMS反到不脫粉，但是CMC、CMS不能做防水膩?zhàn)樱膊荒茏鐾鈮δ佔(zhàn)樱驗(yàn)镃MC和CMS遇到灰鈣粉、白水泥起反應(yīng)，這都會(huì)引起脫粉，也有把聚丙烯酰胺加入灰鈣粉、白水泥做為防水涂料，也會(huì)起化學(xué)反應(yīng)引起脫粉。
Unreasonable design formula, material selection and structure are very important in putty formula. For example, hydroxypropyl methylcellulose (HPMC) is not waterproof putty for interior walls. Although HPMC is very expensive, it does not work on fillers such as Shuangfei powder, talcum powder and wollastonite powder. If only HPMC is used, it will cause de dusting. However, CMC and CMS can not be used as waterproof putty or exterior wall putty, because CMC and CMS encounter lime calcium powder and white cement Reaction, which will lead to de powdering, but also add polyacrylamide to lime calcium powder, white cement as waterproof coating, will also cause chemical reaction.
原因三
Reason 3
混合攪拌不均勻，是造成內(nèi)外墻膩?zhàn)用摲鄣闹饕颍珖械纳a(chǎn)廠家生產(chǎn)膩?zhàn)臃墼O(shè)備簡(jiǎn)單，五花八門，不是專用攪拌設(shè)備，攪拌不均勻，引起膩?zhàn)用摲邸?/div>
The uneven mixing and mixing is the main reason for the putty powder removing from the internal and external walls. Some manufacturers in China have simple and varied equipment for producing putty powder, which is not a special mixing equipment, and the mixing is uneven, which causes the putty to be powdered.
膩?zhàn)臃蹚S家
Putty powder manufacturer
原因四
Reason four
生產(chǎn)工藝的錯(cuò)誤造成膩?zhàn)用摲郏绻旌蠑嚢铏C(jī)沒有清掃的功能，殘留較多，普通膩?zhàn)又械腃MC就會(huì)和防水膩?zhàn)又械幕意}粉起反應(yīng)，內(nèi)墻膩?zhàn)又械腃MC、CMS和外墻膩?zhàn)拥陌姿嗥鸱磻?yīng)而造成脫粉。有的公司專用設(shè)備設(shè)置了清掃口，可以把機(jī)器中的殘留物清掃干凈，不僅保證膩?zhàn)拥馁|(zhì)量，還可以一機(jī)多用，買一臺(tái)設(shè)備生產(chǎn)多種膩?zhàn)印?/div>
If the mixing mixer does not have the function of cleaning and there is a lot of residue, the CMC in the ordinary putty will react with the lime calcium powder in the waterproof putty, and the CMC and CMS in the inner wall putty will react with the white cement of the exterior wall putty to cause the powder removal. Some company's special equipment is equipped with cleaning mouth, which can clean up the residue in the machine, not only to ensure the quality of putty, but also to use one machine for multiple purposes. Buy one equipment to produce a variety of putty.
原因五
Reason 5
填充料的質(zhì)量的不同也容易造成脫粉，內(nèi)外墻膩?zhàn)哟罅康氖褂锰畛淞希鞯刂剽}粉、滑石粉里面Ca2CO3的含量不同，酸堿度不同也會(huì)造成膩?zhàn)拥拿摲郏热缰貞c和成都的內(nèi)墻膩?zhàn)臃塾猛瑯拥哪z粉，但滑石粉、重鈣粉不同，在重慶不脫粉，在成都就脫粉，在河南、東北不脫粉，而在一些地區(qū)就脫粉。
The quality of the filler is also easy to cause the powder removal. A large number of fillers are used for the putty of internal and external walls. However, the content of ca2co3 in the putty powder of the heavy calcium powder and talc powder in different places and the pH value are different. For example, the same rubber powder is used for the interior wall putty powder of Chongqing and Chengdu, but the talcum powder and the heavy calcium powder are different. They are not powdered in Chongqing, but they are removed in Chengdu, and in Henan and East China In the north, it is not powdered, but in some areas.
原因六
Reason six
夏季外墻膩?zhàn)拥谋Ｋ粔颍貏e是在大樓高層門口、窗口等高溫通風(fēng)的地方，灰鈣粉和水泥的初凝時(shí)間不夠就已失去水份，又沒有養(yǎng)護(hù)好，也會(huì)嚴(yán)重脫粉。
In summer, the water retention of putty for exterior wall is not enough, especially in the high-rise building doors, windows and other places with high temperature and ventilation. If the initial setting time of lime calcium powder and cement is not enough, the moisture will be lost, and the powder will be seriously desorbed if it is not maintained well.
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