阅读说明：本技术 一种纳米陶瓷颗粒填充高粘度高精度光敏树脂 (High-viscosity high-precision photosensitive resin filled with nano ceramic particles ) 是由 杨松 于 2020-05-08 设计创作，主要内容包括：本发明公布了一种纳米陶瓷颗粒填充高粘度高精度光敏树脂,涉及了光敏树脂的技术领域,以所述纳米陶瓷颗粒填充高粘度高精度光敏树脂质量为100％计包括有：水性聚氨酯树脂35-50％,水性单体30-50％,活性稀释剂10-20％,纳米陶瓷颗粒粉5-25％,流平剂1-5％,硅酸铝1-2％,光引发剂0.5-3％,水性消泡剂0.05-0.1％,水性颜料0.02-1％,增塑剂0.01-1％,热稳定剂0.01-1％。本发明以纳米陶瓷颗粒粉、水性聚氨酯树脂和活性稀释剂为原材料并添加了硅酸铝制备成光敏树脂,有效提升了光敏树脂的粘度和精度,改善了光敏树脂的力学性能差的问题。(The invention discloses a high-viscosity high-precision photosensitive resin filled with nano ceramic particles, relating to the technical field of photosensitive resin, and the high-viscosity high-precision photosensitive resin filled with nano ceramic particles comprises the following components by mass of 100 percent: 35-50% of water-based polyurethane resin, 30-50% of water-based monomer, 10-20% of active diluent, 5-25% of nano ceramic particle powder, 1-5% of flatting agent, 1-2% of aluminum silicate, 0.5-3% of photoinitiator, 0.05-0.1% of water-based defoamer, 0.02-1% of water-based pigment, 0.01-1% of plasticizer and 0.01-1% of heat stabilizer. According to the invention, the photosensitive resin is prepared by taking the nano ceramic particle powder, the waterborne polyurethane resin and the active diluent as raw materials and adding the aluminum silicate, so that the viscosity and the precision of the photosensitive resin are effectively improved, and the problem of poor mechanical property of the photosensitive resin is solved.)

1. A high-viscosity high-precision photosensitive resin filled with nano ceramic particles is characterized in that: the high-viscosity high-precision photosensitive resin filled with the nano ceramic particles comprises the following components by taking the mass of the nano ceramic particles as 100 percent:

2. the nano-ceramic particle-filled high-viscosity high-precision photosensitive resin as claimed in claim 1, wherein: the waterborne polyurethane resin is added with a waterborne monomer to enhance the polymerizability of the waterborne polyurethane resin, and the waterborne resin is aliphatic waterborne polyurethane.

3. The nano-ceramic particle-filled high-viscosity high-precision photosensitive resin according to claim 2, characterized in that: the water-based monomer is one or more of ethoxy modified trihydroxypropane triacrylate, ethoxylated bisphenol A diacrylate or propylene morpholine.

4. The nano-ceramic particle-filled high-viscosity high-precision photosensitive resin as claimed in claim 1, wherein: the reactive diluent is a multifunctional reactive diluent, wherein the reactive diluent can be selected from the following components in ethoxylated trimethylolpropane triacrylate: one or more of TMP6EOTA \ TMP3EOTA \ TMP9 EOTA.

5. The nano-ceramic particle-filled high-viscosity high-precision photosensitive resin as claimed in claim 1, wherein: the defoaming agent is a BYK-1786 type organic silicon defoaming agent.

6. The nano-ceramic particle-filled high-viscosity high-precision photosensitive resin as claimed in claim 1, wherein: the photoinitiator is one or more of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide, diphenyl phosphorus oxide or 2,4, 6-trimethylbenzoyl-ethoxy-phenyl phosphorus oxide.

7. The nano-ceramic particle-filled high-viscosity high-precision photosensitive resin according to claim 2, characterized in that: the ceramic particle powder is a nanoscale unit and is easily fused into a resin material.

8. The nano-ceramic particle-filled high-viscosity high-precision photosensitive resin as claimed in claim 1, wherein: the proportion of the aluminum silicate should be suitably high and sufficiently melted in the photosensitive resin.

Technical Field

The invention relates to the technical field of photosensitive resin, in particular to high-viscosity high-precision photosensitive resin filled with nano ceramic particles.

Background

The additive manufacturing technology is generally called as a 3D printing technology, and is a rapid manufacturing technology for forming materials by layer in a superposition mode based on a digital model file, the technology can be used for rapidly manufacturing three-dimensional parts for design verification or verification of functional prototypes, a mold is not needed, the processing period is effectively shortened, and rapid small-batch manufacturing of complex three-dimensional structural parts is easy to realize. In recent years, with the rapid development of scientific technology, 3D printing technology is being increasingly applied in the field of industrial manufacturing, wherein 3D printing materials are also increasing.

Currently, photosensitive resins are used in most of printing materials, and are widely appreciated and used because of their excellent properties. However, the existing photosensitive resin material has the problems of low viscosity, low precision and poor mechanical property.

Disclosure of Invention

The invention aims to solve the problems of low viscosity, low precision and poor mechanical property of the conventional photosensitive resin.

The invention relates to a high-viscosity high-precision photosensitive resin filled with nano ceramic particles, which is achieved by the following specific technical means:

a high-viscosity high-precision photosensitive resin filled with nano ceramic particles is characterized in that: the high-viscosity high-precision photosensitive resin filled with the nano ceramic particles comprises the following components by taking the mass of the nano ceramic particles as 100 percent:

further preferred embodiments: the waterborne polyurethane resin is added with a waterborne monomer to enhance the polymerizability of the waterborne polyurethane resin, and the waterborne resin is aliphatic waterborne polyurethane.

Further preferred embodiments: the water-based monomer is one or more of ethoxy modified trihydroxypropane triacrylate, ethoxylated bisphenol A diacrylate or propylene morpholine.

Further preferred embodiments: the reactive diluent is a multifunctional reactive diluent, wherein the reactive diluent can be selected from the following components in ethoxylated trimethylolpropane triacrylate: one or more of TMP6EOTA \ TMP3EOTA \ TMP9 EOTA.

Further preferred embodiments: the defoaming agent is a BYK-1786 type organic silicon defoaming agent.

Further preferred embodiments: the photoinitiator is one or more of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide, diphenyl phosphorus oxide or 2,4, 6-trimethylbenzoyl-ethoxy-phenyl phosphorus oxide.

Further preferred embodiments: the ceramic particle powder is a nanoscale unit and is easily fused into a resin material.

Further preferred embodiments: the proportion of the aluminum silicate should be suitably high and sufficiently melted in the photosensitive resin.

The invention has the following beneficial effects:

(1) the performance of the nano ceramic particle powder is improved by adding the nano ceramic particle powder into common photosensitive resin, the nano ceramic particle powder participates in reaction on the surface of the photosensitive resin, and meanwhile, the mechanical property of the photosensitive resin can be greatly improved due to the high hardness and good dispersion effect of the nano ceramic powder.

(2) Through the aluminum silicate added into the common photosensitive resin, multiple experiments prove that the surface viscosity of the material can be greatly improved, and the requirement on improving the viscosity of the material is greatly facilitated.

(3) By adding the water-based monomer into the polyurethane resin in the common photosensitive resin, the polymerizability of the photosensitive resin can be effectively enhanced, and the comprehensive mechanical property of the photosensitive resin is improved.

(4) By adding small and micro plasticizer into common photosensitive resin, the plasticity of the new material can be effectively improved, and the printing machine is suitable for printing of various workpieces.

Drawings

FIG. 1 is a composite schematic diagram of a high viscosity and high precision photosensitive resin filled with nano-ceramic particles according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be eliminated and fully described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the illustrated embodiments are only a part of the embodiments of the present invention, and the second part is all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figure 1:

the invention provides a high-viscosity high-precision photosensitive resin filled with nano ceramic particles, which comprises the following components in percentage by mass of 100 percent:

wherein, the waterborne polyurethane resin is added with a waterborne monomer to enhance the polymerizability of the waterborne polyurethane resin, and the waterborne resin is aliphatic waterborne polyurethane.

Wherein, the water-based monomer is one or more of ethoxy modified trihydroxypropane triacrylate, ethoxylated bisphenol A diacrylate or propylene morpholine.

Wherein, the reactive diluent adopts polyfunctional group reactive diluent, wherein the polyfunctional group reactive diluent can be selected from the following components in the ethoxylated trimethylolpropane triacrylate: one or more of TMP6EOTA \ TMP3EOTA \ TMP9 EOTA.

Wherein the defoaming agent is a BYK-1786 type organic silicon defoaming agent.

Wherein the photoinitiator is one or more of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide, diphenyl phosphorus oxide or 2,4, 6-trimethylbenzoyl-ethoxy-phenyl phosphorus oxide.

Wherein, the ceramic particle powder is a nanometer unit and is easy to be melted into the resin material.

Wherein, the proportion of the aluminum silicate is higher properly and is fully melted in the photosensitive resin to improve the viscosity of the photosensitive resin.

The embodiment of the invention comprises the following steps:

and (3) manufacturing the final photosensitive resin material:

1. first, a nano ceramic particle powder is prepared. Granulating the ceramic to be added, and then finely thinning the ceramic particles into powder to enable the particle size to reach 8nm level;

2. then, the preparation of the photosensitive resin was performed. Weighing 40 parts of corresponding aqueous polyurethane resin raw material, 30 parts of aqueous monomer raw material and 10 parts of active diluent raw material according to the same mass grade, mixing and fully stirring, sequentially adding 2 parts of leveling agent raw material, 0.1 part of aqueous defoaming agent raw material, 1 part of aqueous pigment, 1 part of plasticizer raw material and 1 part of heat stabilizer raw material in the stirring process, completely stirring and mixing, then putting the mixture into an oven to heat to 90 ℃, stirring to a semitransparent emulsification state, then adding 0.9 part of photoinitiator, forming a polymerization reaction by ultraviolet irradiation, and finishing the curing and stirring to obtain the photosensitive resin prototype.

3. Finally, the preparation of the final photosensitive resin material is performed. Mixing the prepared nano ceramic particle powder and photosensitive resin according to the mass ratio of 14:86, stirring and performing ultrasonic dispersion simultaneously to finally obtain the photosensitive resin with high viscosity and high precision filled in the nano ceramic particles.