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KL-302
水性双组分用交联剂
物理性质
性能
数值或状态
外观
无色至淡黄色透明液体
主单体构成
脂肪族
固含量（%）
92±2
粘度（mPa.s）25
2200±200
pH值
7
NCO含量（%）
17.0±0.2
游离单体含量（%）
≦0.2
分散性
水、乙酸乙酯、石油醚等
溶剂
长链醚类
使用温度（℃）
≧室温
耐擦拭性（次），（丁酮，参考值）
140
建议用途
适用于水性树脂体系：如水性丙烯酸酯、水性聚氨酯及合成橡胶乳液等。交联作用可提高涂层的附着力，强度及硬度等。
使用方法
交联剂的添加量一般为树脂体系的3~5%（特殊情况下可加入1~10%），客户应根据自身工艺需要进行测试确定。
应采用机械搅拌的形式进行充分混合。
混合后应在适用期内用完。适用期一般为几个小时。但因被添加的主体的化学组成有较大差异，客户应自行测试其适用期。
包装储存
包装规格为4x5Kg塑桶、25Kg衬塑铁桶以及用户指定包装。
放置于凉爽、通风、干燥的地方。产品对潮气十分敏感，与水反应会形成二氧化碳和不溶性的脲。因此包装容器必须良好密封。应避免其与湿气、溶剂和潮湿容器中的水分反应。产品自出厂之日起6个月内使用效果最佳。
Hydrophilic Crosslinker for Two-Component Systems
Specification
Properties
Value or Status
Appearance:
colorless to light yellow transparent liquid
Main monomer type:
aliphatic
Solid content (%):
92±2
Viscosity (mPa.s)25°C:
2200±200
pH value:
7
NCO content (%):
17.0±0.2
Free monomer content (%):
≦0.2
Dispersion property:
water, ethyl acetate, petroleum ether, etc.
Solvent:
long chain ethers
Service temperature (°C)
≧room temperature
Scratch resistance (times),
(MEK, reference value):
140
Suggested Application
KL-302 is suitable for hydrophilic resins, such as water-based acrylate resins, polyurethane resins, and synthetic rubber emulsion, and it favors to improve adhesion, tensile strength, and hardness of the cured resins.
Typical Application
In general, the dosage of KL-302 is about 3~5% of the total curing system (special cases can be added to 1~10%). Customers shall have a test according to their own needs to determine the optimized addition amount.
Mechanical agitation is necessary for a well-mixing effect.
After mixing, the coating systems should be used in its pot life, usually of several hours. However, due to the great differences lie in chemical composition among resin systems, customers should have a self-testing to ascertain the actual pot life.
Packaging & Storage
Available in25 Kgplastic drums, 4x5 Kgplastic drums, or specified packing requests of customers.
Place in cool and dry place with adequate ventilation.
KL-302 is very sensitive to moisture, and can easily react with water, leading to the formation of carbon dioxide and insoluble urea. Therefore, the packaging container must be well sealed to avoid the unexpected reaction derived from water of moisture, solvent, and wet container, etc. The crosslinker should be consumed within 6 months to achieve the best using effect.