瓷砖粘结剂现在已经比较普遍了，南方城市用的更多一些，尤其对于吸水率比较低的瓷砖，粘结的效果会更好些。那么你知道影响济南瓷砖粘结剂粘度的原因有哪些吗？

Ceramic tile adhesives are now more common, and are more commonly used in southern cities, especially for tiles with low water absorption, the bonding effect will be better. Do you know the reasons that affect the viscosity of Jinan ceramic tile adhesive?

1.极性

1. Polarity

一般说来胶粘剂和被粘体分子的极性影响着粘接强度，但并不意味着这些分子极性的增加就一定会提高粘接强度。从极性的角度出发为了提高粘接强度，与其改变胶粘剂和被粘体全部分子的极性，还不如改变界面区表面的极性。例如聚乙烯、聚丙烯、聚四氟乙烯经等离子表面处理后，表面上产生了许多极性基团，如羟基、羰基或羧基等，从而显着地提高了可粘接性。

Generally speaking, the polarity of adhesive and adhesive molecules affects the bonding strength, but it does not necessarily mean that an increase in the polarity of these molecules will improve the bonding strength. From the perspective of polarity, in order to improve the bonding strength, it is better to change the polarity of the interface surface than to change the polarity of all molecules of the adhesive and the adherend. For example, after plasma surface treatment of polyethylene, polypropylene, and polytetrafluoroethylene, many polar groups such as hydroxyl, carbonyl, or carboxyl groups are generated on the surface, significantly improving their adhesiveness.

2.分子量

2. Molecular weight

聚合物的分子量(或聚合度)直接影响聚合物分子间的作用力，而分子间作用力的大小决定物质的熔点和沸点的高低，对于聚合物决定其玻璃化转变温度Tg和溶点Tm.。所以聚合物无论是作为胶粘剂或者作为被粘体其分子量都影响着粘接强度。

The molecular weight (or degree of polymerization) of a polymer directly affects the intermolecular forces of the polymer, and the magnitude of the intermolecular forces determines the melting and boiling points of the substance. For polymers, it determines their glass transition temperature Tg and melting point Tm. So whether polymers are used as adhesives or as adherents, their molecular weight affects the bonding strength.

一般说来，分子量和粘接强度的关系于无支链线型聚合物的情况，包括两种类型。种类型在分子量全范围内均发生胶粘剂的内聚破坏，这时，粘接强度随分子量的增加而增加，但当分子量达到某一数值后则保持不变。

Generally speaking, the relationship between molecular weight and adhesive strength is limited to the case of unbranched linear polymers, including two types. The first type undergoes cohesive failure of the adhesive throughout the entire range of molecular weight. At this point, the adhesive strength increases with the increase of molecular weight, but remains unchanged when the molecular weight reaches a certain value.

第二种类型由于分子量不同破坏部分亦不同。这时，在小分子量范围内发生内聚破坏，随着分子量的增大粘接强度增大；当分子量达到某一数值后胶粘剂的内聚力同粘附力相等，则发生混合破坏；当分子量再进一步增大时，则内聚力超过粘附力，浸润性不好，则发生界面破坏。结果使胶粘剂为某一分子量时的粘接强度为值。

The second type also has different destructive parts due to different molecular weights. At this point, cohesive failure occurs within a small molecular weight range, and the bonding strength increases with the increase of molecular weight; When the molecular weight reaches a certain value and the cohesive force of the adhesive is equal to the adhesive force, mixing failure occurs; When the molecular weight further increases, the cohesion exceeds the adhesion force, and the wettability is poor, leading to interface failure. The result is that the adhesive strength reaches its maximum value at a certain molecular weight.

3.侧链

3. Side chain

长链分子上的侧基是决定聚合物性质的重要因素，从分子间作用力考虑，聚合物支链的影响是，当支链小时，增加支链长度，降低分子间作用力。当支链达到一定长度后，开始结晶，增加支链长度，提高分子间作用力，这应当是降低或提高粘接强度的原因。

The side groups on long chain molecules are an important factor determining the properties of polymers. From the perspective of intermolecular forces, the effect of polymer branching is to increase the length of the branching chain and reduce the intermolecular forces when the branching chain is small. When the branch chain reaches a certain length, it begins to crystallize, increasing the length of the branch chain and increasing the intermolecular force, which should be the reason for reducing or improving the bonding strength.

以上所讲解内容便是影响济南瓷砖粘结剂粘度的原因了，希望能够帮助到您，您还有什么疑惑或者需求，就来我们网站//www.gochiism.com咨询！

The above explanation is the reason why the viscosity of Jinan ceramic tile adhesive is affected. We hope it can help you. If you have any doubts or needs, please come to our website //www.gochiism.com consulting service