multifunctional epoxy resin has the biggest characteristic of multiple functional groups. due to its high cross-link density after curing, it maintains excellent mechanical properties and insulation performance at high temperature. it is often used in high-temperature adhesives and composite materials, especially in carbon fiber prepregs.
synasia product grade s-186 is a trifunctional glycidyl ester epoxy resin. its appearance is colorless to light yellow liquid. its viscosity at 25℃ ranges from 2000cps to 3500cps. this grade can be applied in the winding process, suitable for high-pressure gas cylinders, motor rotors and other carbon fiber composite materials.
as its molecule contains one cycloaliphatic epoxy group and two glycidyl ester groups, s-186 can not only offer high temperature resistance and weather resistance of the cycloaliphatic epoxy compound, but it also possesses high strength and high adhesion of the glycidyl ester epoxy compound.
due to the presence of highly reactive glycidyl ester group, the reactivity of s-186 is greater than that of cycloaliphatic epoxy resins. it offers a higher epoxy value and better solubility with curing agent. anhydrides and amines can be used as the hardener of s-186. the cured product has good thermal stability. its martens heat resistance temperature after curing with m-phenylenediamine reaches 185°c. its martens heat resistance temperature after curing with 70# anhydride is 156°c.
1. aerospace: structural materials for high-performance aircraft;
2. nuclear industry: components with special mechanical properties;
3. electronics: high temperature resistant adhesives, high temperature resistant insulating casting materials and encapsulating materials, etc.
part 2: s-510
新纳希牌号 s-510 是一款三官能团混合型环氧树脂，因为它既有缩水甘油胺基也有缩水甘油醚基。性状为黄色液体，纯度达95%以上，25℃粘度在400-850cps范围内。因其固化速度快，耐热高，稳定性好，故常用于耐高温胶、碳纤维复材、微型电机部件的浇注密封等应用。 synasia product grade s-510 is a trifunctional mixed type epoxy resin, because it comes with both glycidyl amine group and glycidyl ether group. it is yellow liquid with purity of over 95% and viscosity range at 25℃ from 400cps to 850cps. due to its fast curing speed, strong heat resistance and good stability, it is often used in high temperature resistant adhesives, carbon fiber composite materials, casting and sealing of micro motor parts and many others.
because its molecule contains three epoxy groups and one aromatic ring, s-510 has a high cross-linking density after curing. the cured product has excellent mechanical properties and heat resistance, while also giving excellent resistance to solvent and corrosion. generally amines and anhydrides are used as the curing agent of s-510.
can be used for:
1. electronic grade ink resin;
2. rtm main resin;
3. high temperature resistant and high performance composite base resin.
synasia product grade s-720, referred to as tgddm, is a four-functional glycidyl amine epoxy resin. it is yellow to reddish-brown viscous liquid. its viscosity at 50℃ ranges from 3000cps to 6000cps. this product is often used in high temperature resistant composites and high-temperature adhesives.
because there are four epoxy groups and two aromatic rings in the molecule, the activity of s-720 can reach 10 times that of bisphenol a epoxy resin. its curing speed is fast and the cross-linking density of the cured product is extremely large. other advantages of s-720 include low shrinkage rate, high tg, high strength and long storage period. usually s-720 is used with the curing agent like amines and anhydrides.
nantong synasia new material co., ltd. focuses on the production of various cycloaliphatic epoxy resins and multifunctional epoxy resins. after more than ten years of united efforts by all employees, synasia has become the leading brand at home and abroad. welcome all to sending private letters to us and we will try our best to answer all of your questions~
in the next issue, we will talk about the specific value of tg of different multifunctional epoxy resins, as well as the use of different anhydrides or amine agents for multifunctional epoxy resins. scan the qr code to keep your focus on us. see you next time!