阅读说明：本技术 一种抗静电环氧树脂涂料的制备方法 (preparation method of antistatic epoxy resin coating ) 是由 刘福生 张端巍 郜伟 郭斌 银鹏 于 2019-10-16 设计创作，主要内容包括：本发明提供一种抗静电环氧树脂涂料的制备方法,按照聚季铵盐抗静电剂、环氧树脂、聚醚胺、有机硅偶联剂、流平剂和消泡剂的质量份数比为(0.8～5)∶(5～80)∶(5～80)∶(0.01～5)∶(0.01～5)∶(0.01～5)的比例,先将聚季铵盐抗静电剂、环氧树脂、流平剂和消泡剂混合搅拌均匀后,再加入有机硅偶联剂和聚醚胺搅拌均匀,即得到抗静电环氧树脂涂料；该方法工艺简单、无环境污染、规模化生产投资小、生产效率高,具有很好的产业化前景。(the invention provides a preparation method of an antistatic epoxy resin coating, which comprises the steps of firstly mixing and stirring uniformly a polyquaternary ammonium salt antistatic agent, epoxy resin, a polyether amine, an organic silicon coupling agent, a leveling agent and an antifoaming agent according to the mass part ratio of (0.8-5) to (5-80) to (0.01-5), and then adding the organic silicon coupling agent and the polyether amine and stirring uniformly to obtain the antistatic epoxy resin coating; the method has the advantages of simple process, no environmental pollution, small investment in large-scale production, high production efficiency and good industrialization prospect.)

1. The preparation method of the antistatic epoxy resin coating is characterized by comprising the following steps:

the antistatic epoxy resin coating is prepared by adopting the following technical scheme:

Firstly, mixing and stirring uniformly a polyquaternium antistatic agent, epoxy resin, a polyether amine, an organic silicon coupling agent, a leveling agent and an antifoaming agent according to the mass part ratio of (0.8-5) to (5-80) to (0.01-5) to obtain an antistatic epoxy resin coating;

the structural formula of the polyquaternium antistatic agent is as follows:

Wherein:

R＝CH，x＝1～6；R＝CH，y＝1～6；

R＝CH，z＝1～6；R＝CH，q＝1～6；

m＝0～20；n＝0～20；

The A-ion is an anion with larger volume and more dispersed charge;

the leveling agent is any one of a polyacrylate leveling agent, a fluorine modified polyacrylate leveling agent, an organic silicon leveling agent and a polyether modified organic silicon leveling agent;

The defoaming agent is any one of a polyether defoaming agent and a silicone defoaming agent.

2. The production method according to claim 1, wherein the a-ion is any one of a tetrafluoroborate ion, a hexafluorophosphate ion, a benzenesulfonate ion, a p-toluenesulfonate ion, a trifluoromethanesulfonate ion, a trifluoroacetate ion and a pentafluoropropionate ion.

3. The production method according to claim 1, wherein the epoxy resin used is any one or more of E-51, hydantoin epoxy resin (epoxy value 0.7) and E-44.

4. The process according to claim 1, wherein the polyetheramine used is any one or more of polyetheramine EDR-148, polyetheramine D230, polyetheramine D-400, polyetheramine D-2000, polyetheramine ED-600, polyetheramine ED-900 and polyetheramine ED-2003.

5. The process according to claim 1, wherein the organosilicon coupling agent is any one or more of KH-540, KH-550, KH-560, KH-570, KH-792, Si-602, and Si-563.

6. the method according to claim 1, wherein the leveling agent is one or more of MT-308 polyacrylate leveling agent, MT-309 polyacrylate leveling agent, MT-3600 fluorocarbon-modified acrylate leveling agent, MT-305 fluorine-modified polyacrylate leveling agent, MT-316 organic silicon polymer leveling agent, MT-302 polyether-modified polydimethylsiloxane leveling agent, MT-307 polyether-modified siloxane leveling agent, and MT-310 modified polysiloxane leveling agent.

7. the production method according to claim 1, characterized in that the defoaming agent used is any one of GP330 polyether defoaming agent, GPE3000 polyether defoaming agent, FAG470 silicone defoaming agent, BYK-065 silicone defoaming agent, BYK-066N silicone defoaming agent and YCK-615 polysiloxane defoaming agent.

Technical Field

the invention relates to a preparation method of an antistatic epoxy resin coating, belonging to the technical field of coating preparation.

background

the epoxy resin coating has a series of excellent performances, such as wear resistance, impact resistance, corrosion resistance, acid resistance, alkali resistance, organic solvent resistance, thermal stability, mechanical property, adhesive force and the like, and therefore, the epoxy resin coating is very wide in application.

at present, two types of research reports about antistatic agents of epoxy resin coatings are mainly reported, one type is conductive fillers, such as polypyrrole, polyaniline, conductive mica powder and the like, the addition amount of the conductive fillers is generally high and even can reach 10% -20%, the mechanical property of a coating is greatly influenced by the high addition amount, the use cost is high, and the conductive fillers are difficult to disperse in the epoxy resin coatings; the other is surfactant antistatic agent, which has the problem of poor antistatic durability; as the polyquaternium antistatic agent for the epoxy resin coating is less reported, the invention researches and develops a preparation method of the antistatic epoxy resin coating by taking high molecular polyquaternium as the antistatic agent.

The antistatic epoxy resin coating is prepared by taking a polyquaternary ammonium salt antistatic agent, epoxy resin, polyether amine, an organic silicon coupling agent, a flatting agent and a defoaming agent as raw materials. The method has the advantages of simple process, no environmental pollution, small investment in large-scale production, high production efficiency and good industrialization prospect.

Disclosure of Invention

1. The preparation method of the antistatic epoxy resin coating is characterized by comprising the following steps:

The antistatic epoxy resin coating is prepared by adopting the following technical scheme:

Firstly, mixing and stirring uniformly a polyquaternium antistatic agent, epoxy resin, a polyether amine, an organic silicon coupling agent, a leveling agent and an antifoaming agent according to the mass part ratio of (0.8-5) to (5-80) to (0.01-5) to obtain an antistatic epoxy resin coating;

The structural formula of the polyquaternium antistatic agent is as follows:

Wherein:

R＝CH，x＝1～6；R＝CH，y＝1～6；

R＝CH，z＝1～6；R＝CH，q＝1～6；

m＝0～20；n＝0～20；

The A-ion is an anion with larger volume and more dispersed charge;

The leveling agent is any one of a polyacrylate leveling agent, a fluorine modified polyacrylate leveling agent, an organic silicon leveling agent and a polyether modified organic silicon leveling agent;

the defoaming agent is any one of a polyether defoaming agent and a silicone defoaming agent.

2. The preparation method of the antistatic epoxy resin coating is characterized in that the A-ions are any one of tetrafluoroborate ions, hexafluorophosphate ions, benzene sulfonate ions, p-toluene sulfonate ions, trifluoromethanesulfonate ions, trifluoroacetate ions and pentafluoropropionate ions.

3. the preparation method of the antistatic epoxy resin coating is characterized in that the epoxy resin is any one or more of E-51, hydantoin epoxy resin (with an epoxy value of 0.7) and E-44.

4. The preparation method of the antistatic epoxy resin coating is characterized in that the used polyether amine is any one or more of polyether amine EDR-148, polyether amine D230, polyether amine D-400, polyether amine D-2000, polyether amine ED-600, polyether amine ED-900 and polyether amine ED-2003.

5. The preparation method of the antistatic epoxy resin coating is characterized in that the organosilicon coupling agent is any one or more of KH-540, KH-550, KH-560, KH-570, KH-792, Si-602 and Si-563.

6. the preparation method of the antistatic epoxy resin coating is characterized in that the used flatting agent is any one or more of an MT-308 polyacrylate flatting agent, an MT-309 polyacrylate flatting agent, an MT-3600 fluorocarbon modified acrylate flatting agent, an MT-305 fluorine modified polyacrylate flatting agent, an MT-316 organic silicon polymer flatting agent, an MT-302 polyether modified polydimethylsiloxane flatting agent, an MT-307 polyether modified siloxane flatting agent and an MT-310 modified polysiloxane flatting agent.

7. The preparation method of the antistatic epoxy resin coating is characterized in that the used defoaming agent is any one of GP330 polyether defoaming agent, GPE3000 polyether defoaming agent, FAG470 organic silicon defoaming agent, BYK-065 organic silicon defoaming agent, BYK-066N organic silicon defoaming agent and YCK-615 polysiloxane defoaming agent.

8. The preparation method of the antistatic epoxy resin coating is characterized in that the polyquaternium antistatic agent has excellent antistatic performance, when the addition amount of the polyquaternium antistatic agent in the epoxy resin coating is about 1% by mass, the surface resistivity of the antistatic epoxy resin coating is 109 omega in an environment with the relative humidity of 60%, and the antistatic performance can meet the national standard requirement.

Detailed Description