施工過後环氧地坪的開裂該如何防止?

文章时间:2018-10-12 06:48:07   浏览次数:1159

环氧地坪開裂的情況:1、环氧地坪在塗裝以後形成的,形狀類似與烏龜背面上的紋路,此種開裂叫龜裂2、环氧地坪在塗裝完成後不久就出現很明顯的裂紋,甚至有的時候可以看見低層3、產生一種肉眼看不到的裂紋,但是用十倍顯微鏡觀察變會看見。導致這種裂紋的原因有兩個,一是环氧地坪永久瞭以後出現的一種必然現象,它不會影響环氧地坪的美觀;另一個原因是在塗裝後不久就出現瞭,這種屬於人為的原因。
Epoxy floor cracking: 1. Epoxy floor after painting, similar to the shape of the back of the tortoise lines, this cracking called crack 2, epoxy floor after finishing painting soon appeared very obvious cracks, and sometimes you can see the lower 3, produce a kind of cracks invisible to the naked eye, but with 10 Double microscope observation will see. There are two reasons for this kind of crack, one is the epoxy floor permanently after an inevitable phenomenon, it will not affect the beauty of the floor; the other is that it appeared shortly after painting, this is an artificial reason.

造成环氧地坪在在塗裝後不久就出現各種病態的裂縫,除瞭與材料本身有關,還與施工操作有必然的聯系。造成的開裂有如下因素:All kinds of abnormal cracks appear in the epoxy floor shortly after painting, which are not only related to the material itself, but also related to the construction operation. The causes of cracking are as follows:
1.塗膜幹燥後,硬度過高,而柔韌性又較差,如用含有共雙鍵的脂肪酸或它的酯所配制的塗料;
1. After drying, the hardness of the film is too high, but the flexibility is poor, such as using fatty acids containing double bonds or its esters prepared coating;
2.頭道漆沒幹透就塗二道漆,兩層塗膜內外伸縮力不一致;
2. the first coat of paint is not dry enough to be painted with two lacquers, and the two layers of coating have different internal and external expansion forces.
3.塗層配套不適當,例如底漆層比面漆層塗膜軟;3. the coating is not suitable, for example, the primer layer is more flexible than the topcoat coating.
4.环氧环氧地坪面漆中揮發組分太多,影響成膜的結合力而引起塗膜幹裂;
4. there are too many volatile components in epoxy floor coatings, which affect the bonding force of film forming and cause the film to dry crack.
5.塗層過厚,表層幹而內層沒有幹透;
5. the coating is too thick, the surface layer is dry and the inner layer is not dried.
6.催幹劑用量過多或各種催幹劑搭配不當;
6. excessive dosage of 彩色沥清地坪drier or improper matching of various driers.
7.塗膜在有污氣(如二氧化硫、氨氣等)的环境下應用;
7. coating is applied in polluted environment such as sulfur dioxide and ammonia.
8.色漆在使用前未攪勻,上層樹脂多顏料少,而下層顏料多樹脂少,塗裝後容易開裂;
8. Color paint is not stirred before use, the upper layer of resin more pigment less, and the lower layer of pigment more resin less, easy to crack after coating;
9.塗層耐候性或耐溫變性不佳。
9. the coating has poor weatherability or temperature resistance.
為瞭避免因上述原因造成的裂分,我們在使用材料和施工過程中應做到如下幾點:
In order to avoid the cracking caused by the above reasons, we should do the following in the use of materials and construction process:
1.面漆硬度不宜過高,應註意塗料配方中塗膜的柔韌性;
1. the hardness of the top coat should not be too high.
2.應在頭道漆充分幹透後再塗二道漆;
2. two paint should be applied after the first paint is fully dried.
3.通過試驗解決塗層的配套性,一般使底漆塗層4.和面漆塗層的环氧地坪硬度、伸縮性接近;
3. To solve the problem of coating compatibility by experiment, the primer coating 4. is similar to the surface coating in hardness and flexibility.
4.环氧地坪面漆的揮發組分不宜過多;
4. the volatile components of epoxy floor paint should not be excessive.
5.环氧地坪施工中每道塗膜不宜過厚;
5. the construction of epoxy floor should not be too thick for each coating.
6.應註意催幹劑的用量和搭配;
6., we should pay attention to the dosage and matching of drier.
7.應避免在有污氣的环境中施工和長時間使用;
7., construction and long-term use should be avoided in a polluted environment.
8.色漆應充分攪拌均勻後再施工;
8. color paint should be well mixed before construction.
9.註意塗料的使用环境溫度;
9. pay attention to the ambient temperature of coating.