工廠使用环氧地坪漆塗層表面起泡的原因

因為潮氣和蒸騰性液體的存在，塗膜在單調過程中或在高溫高濕下表面出現許多大下不均、圓形不規則的泡狀鼓起表象，稱為起泡。起泡主要是施工不當構成的。起泡和針孔不一樣，起泡後有些塗膜會開裂，留在圓形空位而無基地，而針孔沒有開裂並有基地。與工廠环氧地坪漆塗層表面起泡十分類似的壞處是塗膜起“痱子”，因為“痱子”形狀與起泡很類似，但通常要小，原因也有些類似幽稍微、有不一樣。痱子的原因主要有：
Because of the existence of moisture and transpiration liquids, the film in the monotonous process or in the high temperature and humidity under the surface of a lot of large under the uneven, round irregular bubbling appearance, known as bubbling. Blistering is mainly caused by improper construction. Unlike pinholes, some coatings crack after foaming, leaving a circular vacancy without a base, while pinholes do not crack and have a base. A very similar disadvantage to the surface blistering of factory epoxy floor paint coatings is the "prickle" of the coating film, because the "prickle" shape is similar to the blistering, but usually smaller, for some similar reasons slightly different. The main reasons for prickly heat are:
环氧地坪
Epoxy floor
A、工廠环氧地坪漆料對底材濕潤才幹不行，或底材處置不凈;
A, factory epoxy floor paint for wet base talent, or substrate disposal is not clean;
B、溶劑蒸騰過快，運用過快稀料或加溫過快;
B, solvent transpire too fast, use too fast thinner or heating too fast;
C、單層施工過厚或每道距離時刻過短;
C, single layer construction is too thick or every distance is too short.
D、聚氨酯油漆中富含水分或在濕潤环境中單調;
D, polyurethane paint is rich in moisture or monotonous in moist environment.
E、烤漆在5℃以下施工;
E, baking paint at below 5 C.
F、塗膜未徹底單調即顯露於濕潤环境中(徹底單調也可以會出現)。
F, the film is not completely monotonous, that is, exposed to the humid environment (completely monotonous can also appear).
痱子的構成比較復雜，最可以致使痱子的是溶劑保留和水分效果。在較高溫度环境中，劇烈的溶劑蒸騰與較強溶劑保留會構成溶劑蒸氣逗留於塗膜內，然後構成痱子;在較底溫度下，濕塗膜流動性差，特別是表面因溶劑蒸騰構成溫度偏底，流動性更差，更宜構成溶劑蒸氣逗留;其他水分也易致使痱子，漆料裡水分和施工环境中的潮氣起痱均勻，而塗膜受潮氣腐蝕而起的痱子通常不均勻，有如蟲爬通常有必定圖樣。預防措施：
The composition of prickly heat is more complex, which can lead to the retention and moisture effect of prickly heat. At higher temperatures, intense solvent transpiration and strong solvent retention will form a solvent vapor to stay in the film, and then form a prickly heat; at lower temperatures, the wet film fluidity is poor, especially the surface due to solvent transpiration constitutes a lower temperature, poor fluidity, more suitable for the formation of solvent vapor to stay; other moisture is also easy to cause; Prickles arise evenly from moisture in paint and moisture in the construction environment, while prickles caused by Moisture Corrosion of the coating film are usually uneven, as worms usually have certain patterns. Preventive measures:
A、改善塗膜幹性，然後改善塗膜溶劑開釋性;
A, improve the film dry, and then improve the coating solvent release.
B、避免底溫下施工單調;C、降低溶劑極性，然後降低瞭塗膜對溶劑的保留才幹;
B. Avoid monotonous construction at the bottom temperature; C. Reduce the polarity of the solvent, and then reduce the retention ability of the film to the solvent;
D、運用準確的表面助劑，改善表面透氣性;
D, use accurate surface aids to improve surface permeability.
E、運用準確的稀釋劑和固化劑。塗層表面起泡發生的原因、預防措施和解決方法如下：發生原因 防治方法塗膜與水接觸或顯露在高濕的环境下 塗料在施工中切勿與水接觸，未幹塗膜應避免長時刻在高濕的环境下顯露溶劑蒸騰太快，塗料的黏度偏高 運用配套的溶劑和稀釋劑，塗料黏度要調理適中攪拌混入塗猜中的氣體未開釋盡就塗裝 最好添加醇類溶劑和消泡助劑塗層中某些固體物質會自動分解放出氣體，透不過塗膜而起泡 此類塗料應經必定時刻熟化後再施工
E, use accurate diluent and curing agent. The causes, preventive measures and solutions of foaming on the surface of the coating are as follows: prevention and cure methods of foaming on the surface of the coating are as follows: contact between the coating film and water or exposure to water in the construction of the coating in high humidity environment must not contact with water, not dry coating should avoid long-term exposure of solvent transpiration in high humidity environment too fast, the viscosity of the coating on the high side of the use of matching. For solvents and diluents, the viscosity of the coating should be moderately stirred and mixed into the gas in the coating before it is released. It is best to add alcoholic solvents and defoaming additives to the coating. Some solid substances in the coating will automatically decompose and release gas. If the coating can not penetrate the film, the foaming of the coating should be cured at a certain time before application.
环氧地坪
Epoxy floor
2、 滲透壓起泡至今中止，一切的工廠环氧地坪漆塗層都不可以肯定阻止水或水蒸氣的滲透。塗層可視為半透膜，清潔水如飲用水、自來水等為底濃度溶液，而塗層內溶解瞭可溶性鹽或溶劑的溶液則為高濃度溶液。這兩種溶液處於熱力學不平衡情況。它們具有不一樣的自由能或化學勢，因此它們自覺發生劇烈的驅動力一抵達自由能的平衡。就是說，底濃度溶液中的水滲透至高濃度溶液中去稀釋它一抵達濃度平衡。濃度梯度越大，驅動力越強。塗層內或界面上的無機鹽來源於底材表面的污染、未徹底清潔的表面處置劑或運用可溶性鹽超標的顏料和填料。混凝土表面的环氧地坪層就常常發生滲透壓起泡。
2. Osmotic foaming has been discontinued so far, all factory epoxy floor paint coatings can not be sure to prevent water or steam permeation. The coating can be regarded as a semi-permeable membrane. Clean water, such as drinking water and tap water, is the base concentration solution, while the solution in which soluble salt or solvent is dissolved is a high concentration solution. The two solutions are in thermodynamic imbalance. They have different free energy or chemical potential, so they consciously produce violent driving force as soon as they reach the balance of free energy. That is to say, the water in the bottom concentration solution is permeated to a high concentration solution to dilute it to a concentration equilibrium. The greater the concentration gradient, the stronger the driving force. The inorganic salts in or at the interface of the coating come from contamination of the substrate surface, surface treatment agents that are not thoroughly cleaned, or the use of pigments and fillers with excessive soluble salts. The surface layer of concrete often occurs under osmotic 印花地坪pressure.
這是因為混凝土富含必定量的水，一同也富含無機鹽。如果表面清潔不徹底，而且未恰當封閉，就構成天然的滲透池，隻要與水接觸就會發生滲透壓起泡。环氧塗料常常運用甲乙酮、丁醇等與水有些混溶的溶劑，或丙二醇、乙二醇醚等與水徹底混溶的溶劑。它們通常最少10天往後方能蒸宣佈絕大有些，如果塗層沒有幹透就投入運用，例如用於飲用水槽，那麼就會發生滲透壓起泡。還有底材處置時為去油污常用清潔劑，如果用清水沖不徹底，殘留的表面活性劑有些水溶性物質也會致使滲透壓起泡。
This is because concrete is rich in a certain amount of water and is also rich in inorganic salts. If the surface is not thoroughly cleaned and properly sealed, a natural infiltration pool will be formed, and osmotic bubbles will occur as long as it is in contact with water. Epoxy coatings often use methyl ethyl ketone, butanol and other water some miscible solvents, or propylene glycol, ethylene glycol ether and water completely miscible solvents. They are usually evaporated at least 10 days later to announce the greatest e透水地坪xtent, and osmotic bubbles occur if the coating is put into use without drying thoroughly, such as in drinking water tanks. There are also substrate disposal for oil cleaning commonly used detergent, if not thoroughly flushed with clean water, residual surfactant some water-soluble substances will also cause osmotic foaming.
塗層滲透壓起泡發生的原因、預防措施和解決方法如下：發生原因防治方法被塗物表面處置不潔凈，表面富含(或殘留有)溶劑，水分或氣體，或物面十分濕潤底材、底塗層或被塗物面應單調清潔，應避免在有水和濕潤的物面上施工底漆塗後未幹透就遭雨淋，致使有些水分侵入，如不除去就塗面漆，經日曬後會起泡底漆應幹透後，表面的水除凈後再施工底材較濕潤或水蒸氣壓較高應先做好防水層或運用可呼吸(即水性漆)的环氧地坪塗料施工
The causes, preventive measures and solutions of osmotic foaming of coatings are as follows: the surface of coatings is not clean, the surface is rich in (or residual) solvents, moisture or gas, or the surface is very wet substrate, primer or coated surface should be monotonously clean, should avoid the application of water and wet surface. Work primer is not dried through the rain, resulting in some water intrusion, if not removed on the top coat, after sunlight will foam primer should be dried through, the surface of the water after removal of the base material is wetter or higher water vapor pressure should first do a good waterproof layer or the use of breathable (i.e. water-based paint) floor coating construction