砂浆地坪主要施工原料为环氧树脂，具有如下物理特性：
The main construction material of mortar floor is epoxy resin, which has the following physical characteristics:
1、 形式多样。各种树脂、固化剂、改性剂体系几乎可以适应各种应用对形式提出的要求，其范围可以从极低的粘度到高熔点固体。
1. Various forms. Various systems of resins, curing agents and modifiers can almost meet the requirements of various applications, ranging from very low viscosity to high melting point solids.
砂浆地坪
Mortar Floor
砂浆地坪
Mortar Floor
2、 固化方便。选用各种不同的固化剂，环氧树脂体系可以在0～180℃温度范围内固化。
2. Convenient curing. With different curing agents, the epoxy resin system can be cured in the temperature range of 0 - 180 C.
3、 粘附力强。环氧树脂分子链中固有的极性羟基和醚键的存在，使其对各种物质具有很高的粘附力。环氧树脂固化时的收缩性低，产生的内应力小，这也有助于提高粘附强度。
3. Strong adhesion. The inherent polar hydroxyl groups and ether bonds in the molecular chain of epoxy resin make it have high adhesion to various substances. The shrinkage of epoxy resin during curing is low and the internal stress produced is small, which also helps to improve the adhesion strength.
4、 收缩性低。环氧树脂和所用的固化剂的反应是通过直接加成反应或树脂分子中环氧基的开环聚合反应来进行的，没有水或其它挥发性副产物放出。它们和不饱和聚酯树脂、酚醛树脂相比，在固化过程中显示出很低的收缩性（小于2%）。
4. Low contractility. The reaction between epoxy resin and curing agent used is carried out by direct addition reaction or ring opening polymerization of epoxy group in resin molecule, without water or other volatile by-products. Compared with unsaturated polyester resin and phenolic resin, they exhibit very low shrinkage (less than 2%) during curing.
5、 力学性能。固化后的环氧树脂体系具有优良的力学性能。
5. Mechanical properties. The cured epoxy resin system has excellent mechanical properties.
6、 电性能。固化后的环氧树脂体系是一种具有高介电性能、耐表面漏电、耐电弧的优良绝缘材料。 7、 化学稳定性。通常，固化后的环氧树脂体系具有优良的耐碱性、耐酸性和耐溶剂性。像固化环氧体系的其它性能一样，化学稳定性也取决于所选用的树脂和固化剂。适当地选用环氧树脂和固化剂，可以使其具有特殊的化学稳定性能。
6. Electrical performance. The cured epoxy resin system is an excellent insulating material with high www.Leaderhb.cnwww.shanghaijintong.cndielectric properties, surface leakage resistance and arc resistance. 7. Chemical stability. Usually, cured epoxy resin system has excellent alkali resistance, acid resistance and solvent resistance. Like other properties of cured epoxy systems, chemical stability depends on the resin and curing agent chosen. Proper selection of epoxy resin and curing agent can make it have special chemical stability.
8、 尺寸稳定性。上述的许多性能的综合，使环氧树脂体系具有突出的尺寸稳定性和耐久性。 9、 耐霉菌。固化的环氧树脂体系耐大多数霉菌，可以在苛刻的热带条件下使用。
8. Dimensional stability. The synthesis of many properties mentioned above makes the epoxy resin system have outstanding dimensional stability and durability. 9. Mildew resistance. The cured epoxy resin system is resistant to most fungi and can be used in harsh tropical conditions.