Epoxy modified silicon resin coating and preparation method thereof

A technology of epoxy modification and silicone resin, which is applied in the direction of chemical instruments and methods, coatings, mixers, etc., can solve the problems of fine dispersion of solid materials, poor stirring effect of multi-blade paddles, and influence on the final quality of products, etc., to achieve Improve poor adhesion, solve difficult bonding, and improve construction efficiency

A technology of epoxy modification and silicone resin, which is applied in the direction of chemical instruments and methods, coatings, mixers, etc., can solve the problems of fine dispersion of solid materials, poor stirring effect of multi-blade paddles, and influence on the final quality of products, etc., to achieve Improve poor adhesion, solve difficult bonding, and improve construction efficiency

CN112500790AInactive Publication Date: 2021-03-16ζœ±θˆ’η•…
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  • Epoxy modified silicon resin coating and preparation method thereof
  • Epoxy modified silicon resin coating and preparation method thereof
  • Epoxy modified silicon resin coating and preparation method thereof

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preparation example Construction

[0029] A preparation method for preparing epoxy-modified silicone resin coating in claim 1, comprising the following steps

[0030] Step (1): preparing the base resin: adding the D monomer, T monomer and silane coupling agent to the multifunctional stirrer in turn, the stirring speed is set to 100r / min, while the stirring is turned on, distilled water and the catalyst are added in turn, After the reaction system releases heat, add solvent, stir and mix evenly, and stand for 12 hours to prepare resin prepolymer, namely base resin;

[0031] Step (2): Preparation of the coating: 100 parts of the base resin prepared in the step (1) and 4 parts of the crosslinking agent are mixed uniformly to obtain a water-based epoxy modified silicone resin coating.

[0032] The multifunctional agitator in the above step (1) includes a shock absorbing base 1, a supporting foot 11, a tank body 12, a sealing hatch 2, a planetary stirring system 3, a feeding system 4, and a bubble eliminating device...

Embodiment 2

[0039]An epoxy-modified silicone resin coating: consisting of a base resin and a crosslinking agent in a mass ratio of 100:5, the base resin comprising the following components in parts by mass: 250 parts D monomer, 250 parts T monomer body, 100 parts of silane coupling agent, 150 parts of distilled water, 10 parts of catalyst, 200 parts of solvent; the D monomer is dimethyldimethoxysilane or dimethyldiethoxysilane, the T monomer is It is methyltrimethoxysilane or methyltriethoxysilane; the silane coupling agent is Ξ³-glycidyl ether oxypropyltrimethoxysilane, and the solvent is prepared from methanol and diacetone alcohol in a mass ratio of 1:3 made;

[0040] A kind of preparation method for preparing epoxy modified silicone resin coating in claim 1, is characterized in that: comprises the following steps

[0041] Step (1): prepare the base resin: add the D monomer, T monomer and silane coupling agent into the multifunctional stirrer in turn, the stirring speed is set to 200r / ...

Embodiment 3

[0045] An epoxy-modified silicone resin coating: consisting of a base resin and a crosslinking agent in a mass ratio of 100:6, the base resin comprising the following components in parts by mass: 400 parts D monomer, 400 parts T monomer body, 150 parts of silane coupling agent, 200 parts of distilled water, 12 parts of catalyst, 250 parts of solvent; the D monomer is dimethyldimethoxysilane or dimethyldiethoxysilane, the T monomer is It is methyltrimethoxysilane or methyltriethoxysilane; the silane coupling agent is Ξ³-glycidyl ether oxypropyltrimethoxysilane, and the solvent is prepared from methanol and diacetone alcohol in a mass ratio of 1:3 made;

[0046] A kind of preparation method for preparing epoxy modified silicone resin coating in claim 1, is characterized in that: comprises the following steps

[0047] Step (1): prepare the base resin: add the D monomer, T monomer and silane coupling agent into the multifunctional stirrer in turn, the stirring speed is set to 300r...

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Abstract

The invention discloses an epoxy modified silicon resin coating and a preparation method thereof. The coating is composed of base resin and a cross-linking agent according to the mass ratio of 100: (4-6). The preparation method comprises the following steps of: (1) preparing base resin: sequentially adding a monomer D, a monomer T and a silane coupling agent into a multi-functional stirrer, setting the stirring speed to be 100-300r / min, sequentially adding distilled water and a catalyst while stirring, adding a solvent after a reaction system releases heat, uniformly stirring and mixing, and standing for 12 hours to prepare a resin prepolymer, namely base resin; and (2) preparing the coating: uniformly mixing 100 parts of the base resin prepared in the step (1) and 4-6 parts of a cross-linking agent to obtain the waterborne epoxy modified silicon resin coating. The multi-functional stirrer in the step (1) comprises a damping base, fixed supporting legs, a tank body, a sealing cabin cover, a planetary stirring system, a feeding system and a bubble eliminating device. By means of the planetary stirring system, efficient stirring and accurate feeding of modified epoxy resin are achieved.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to an epoxy modified silicone resin coating and a preparation method thereof. Background technique [0002] Silicone resin is a thermosetting polysiloxane polymer with a highly cross-linked structure. It has the dual characteristics of organic resin and inorganic material. It has unique physical and chemical properties, good electrical insulation properties, temperature resistance and water resistance. However, the pure silicone resin is deficient in mechanical properties, adhesiveness and solvent resistance, and has poor compatibility with other organic polymers, so its performance needs to be improved in application. [0003] Usually, the modification methods of silicone resin include physical blending method and chemical copolymerization method. The physical blending method has the problem of poor compatibility between silicone resin and other organic polymer resins, and it is ...

Claims

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Application Information

Patent Timeline
16 Mar 2021
Publication
CN112500790A
IPC
C09D183/06; C09D7/20; C08G77/14; B01F7/30; B02C19/22
CPC
C09D183/06; C09D7/20; C08G77/14; B02C19/22; B01F27/95
Inventors
ζœ±θˆ’η•