News Details
Crosslinking agent for coating coatings
2017-7-1 15:53:25
Crosslinking agent for coating coatings
A titanium base super hydrophobic coating, ice can be used in the control plane, the sol - gel process preparation, including colloidal suspension from liquid to solid gel, then crosslinking, enhance the durability of the coating is the key.
How to better solve the current anti-icing performance, a hydrophobic absorbent paint with gradient structure can be used as a research direction. With polysilicate water-based gel as a basic material for the coating resin, at the same time and granularity of different proportion of compound pigment particles as a material suction light, strictly control the diffuse light, working to improve the choice of this kind of paint absorption rate, reduce the light reflection, to improve the weatherability of the coating and hydrophobic; The gradient coating structure can guarantee strong adhesion between the paint and substrate, and has a strong thermal absorption performance to ensure a better deicing effect.
At present, low surface energy coatings are often used in organic silicone resin, with good electrical insulation, high temperature resistance and moisture resistance. The stability of ozone, uv and atmosphere is good, but its anti - viscosity is worse than fluorocarbon resin. Fluorinated modified organosilicone resin can increase the solvent resistance, oil resistance and surface energy of silicone resin.
In recent years, the northern coating industry research and design institute on the basis of summarizing the domestic and foreign advanced experience, integrated the advantages of the four types of coating of ice prevention, this paper proposes a new "transmission line ice coating development idea of" prevention, gradient, its characteristic is coating multiple stratification, in addition to the low surface energy, strong hydrophobic hate ice performance, but also has high heat absorption and good weather resistance, etc.
Its specific research content is a kind of low surface energy resin synthesis, choosing the appropriate sex suction light yan, stuffing, preparation of good adhesion primer, with low surface energy resin containing solar absorption packing system for the compound prevents ice coating paint, meet the requirements of transmission lines and equipment against the ice.
The selection of resin is mainly to improve the hydrophobic and hydrophobic properties of the coating, and the organic fluorine, organosilicon and other coatings have certain hydrophobic properties, but the direct application of anti-icing needs further modification research.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
The research progress of several kinds of low-surface fluorocarbon resin in the field of hydrophobic coating and the application of this coating in the field of aircraft skin and anti-icing. The more promising scheme is to use "anti-icing special paint", which is mainly composed of pigment with high hydrophobic base material and specific absorption and heat transfer performance.
HaiHua court recently developed into a kind of low surface energy of fluorinated silicon acrylic resin, coating made by its surface water contact Angle of 150 ° above, rolling Angle is less than 10 °. Hydrorepellent effect is good; When water is exposed to the surface of the coating, the hydrophobic function is obvious and has a better waterproof effect.
The technology has changed the shortcomings of the superhydrophobic coating, spraying with ordinary high-pressure air, convenient construction and good film coating. However, the coating has no absorbance and heat conduction performance.
Anti-icing material, anti-defice effect is better, one is to effectively inhibit the water to freeze on the surface of the material; And the icing residue of ice is weak and easy to fall off. The second is that the surface of the material is not easy to stick to the ice, and it is better to remove the ice under the force of external forces.
The methods of the modification of silicone resin are divided into physical and chemical methods: the physical method is used to combine the colophony with good consistency. The chemical method is used to recondensation the active functional groups of the resin with the -oh and -or in silicone resin.
If silicone modified polyester is enriched with silicon polyester, the surface tension of polyester can be greatly reduced. Or introduce fluorine resin and modified resin. The products are modified with fluorine resin such as Teflon (Teflon) series, PVDF (polyvinylidene fluoride), FEVE (fluorocarbon resin) and PVF (polyfluoroethylene) resin.
Such as M.K hayet with poly (ether imide) (PEI), butyrolactone, containing the fluoride group of polyurethane (pu) and N, N two methyl ethyl amide, phase transformation method is used, made of modified polymer membrane, after the examination, because it contains fluorine groups exist, the surface contact Angle of water increases greatly. John W.F itch et al. reacted with sodium salt and bromide pentafluoride, rereacted with bisphenol, and obtained hydrophobic polyether with hydrophobic and low dielectric constant.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
A titanium base super hydrophobic coating, ice can be used in the control plane, the sol - gel process preparation, including colloidal suspension from liquid to solid gel, then crosslinking, enhance the durability of the coating is the key.
How to better solve the current anti-icing performance, a hydrophobic absorbent paint with gradient structure can be used as a research direction. With polysilicate water-based gel as a basic material for the coating resin, at the same time and granularity of different proportion of compound pigment particles as a material suction light, strictly control the diffuse light, working to improve the choice of this kind of paint absorption rate, reduce the light reflection, to improve the weatherability of the coating and hydrophobic; The gradient coating structure can guarantee strong adhesion between the paint and substrate, and has a strong thermal absorption performance to ensure a better deicing effect.
At present, low surface energy coatings are often used in organic silicone resin, with good electrical insulation, high temperature resistance and moisture resistance. The stability of ozone, uv and atmosphere is good, but its anti - viscosity is worse than fluorocarbon resin. Fluorinated modified organosilicone resin can increase the solvent resistance, oil resistance and surface energy of silicone resin.
In recent years, the northern coating industry research and design institute on the basis of summarizing the domestic and foreign advanced experience, integrated the advantages of the four types of coating of ice prevention, this paper proposes a new "transmission line ice coating development idea of" prevention, gradient, its characteristic is coating multiple stratification, in addition to the low surface energy, strong hydrophobic hate ice performance, but also has high heat absorption and good weather resistance, etc.
Its specific research content is a kind of low surface energy resin synthesis, choosing the appropriate sex suction light yan, stuffing, preparation of good adhesion primer, with low surface energy resin containing solar absorption packing system for the compound prevents ice coating paint, meet the requirements of transmission lines and equipment against the ice.
The selection of resin is mainly to improve the hydrophobic and hydrophobic properties of the coating, and the organic fluorine, organosilicon and other coatings have certain hydrophobic properties, but the direct application of anti-icing needs further modification research.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
The research progress of several kinds of low-surface fluorocarbon resin in the field of hydrophobic coating and the application of this coating in the field of aircraft skin and anti-icing. The more promising scheme is to use "anti-icing special paint", which is mainly composed of pigment with high hydrophobic base material and specific absorption and heat transfer performance.
HaiHua court recently developed into a kind of low surface energy of fluorinated silicon acrylic resin, coating made by its surface water contact Angle of 150 ° above, rolling Angle is less than 10 °. Hydrorepellent effect is good; When water is exposed to the surface of the coating, the hydrophobic function is obvious and has a better waterproof effect.
The technology has changed the shortcomings of the superhydrophobic coating, spraying with ordinary high-pressure air, convenient construction and good film coating. However, the coating has no absorbance and heat conduction performance.
Anti-icing material, anti-defice effect is better, one is to effectively inhibit the water to freeze on the surface of the material; And the icing residue of ice is weak and easy to fall off. The second is that the surface of the material is not easy to stick to the ice, and it is better to remove the ice under the force of external forces.
The methods of the modification of silicone resin are divided into physical and chemical methods: the physical method is used to combine the colophony with good consistency. The chemical method is used to recondensation the active functional groups of the resin with the -oh and -or in silicone resin.
If silicone modified polyester is enriched with silicon polyester, the surface tension of polyester can be greatly reduced. Or introduce fluorine resin and modified resin. The products are modified with fluorine resin such as Teflon (Teflon) series, PVDF (polyvinylidene fluoride), FEVE (fluorocarbon resin) and PVF (polyfluoroethylene) resin.
Such as M.K hayet with poly (ether imide) (PEI), butyrolactone, containing the fluoride group of polyurethane (pu) and N, N two methyl ethyl amide, phase transformation method is used, made of modified polymer membrane, after the examination, because it contains fluorine groups exist, the surface contact Angle of water increases greatly. John W.F itch et al. reacted with sodium salt and bromide pentafluoride, rereacted with bisphenol, and obtained hydrophobic polyether with hydrophobic and low dielectric constant.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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