CN110628364A - Digital photo-polymerization acrylic glue and preparation method thereof - Google Patents
Digital photo-polymerization acrylic glue and preparation method thereof Download PDFInfo
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- CN110628364A CN110628364A CN201910977021.1A CN201910977021A CN110628364A CN 110628364 A CN110628364 A CN 110628364A CN 201910977021 A CN201910977021 A CN 201910977021A CN 110628364 A CN110628364 A CN 110628364A
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- acrylic glue
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
- C09J133/12—Homopolymers or copolymers of methyl methacrylate
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Abstract
The invention discloses a digital photo-polymerization acrylic glue for a DLP (digital light processing) type 3D printer, which comprises the following raw materials in parts by weight: 30-80 parts of acrylic glue, 10-20 parts of light-cured resin, 2-10 parts of dispersing agent, 0.5-2 parts of compatilizer, 0.5-2 parts of photoinitiator and 0.5-1 part of antioxidant. The invention also discloses a preparation method of the glue, wherein the compatilizer is dropwise added into the acrylic glue and uniformly stirred, and then the photoinitiator and the antioxidant are added and uniformly stirred; adding a dispersing agent into the light-cured resin in a dark place; mixing the above two products. The photosensitive resin has the advantages of low viscosity, high curing speed, low shrinkage, low swelling, good interlayer adhesion compatibility and smooth surface of a printed product.
Description
Technical Field
The invention belongs to the field of DLP (digital light polymerization) type raw material preparation, and particularly relates to digital light polymerization acrylic glue and a preparation method thereof.
Background
An important mode of 3D printing is based on the principle of photocuring molding, and additive manufacturing of products is achieved by illuminating photosensitive resin. The product has high forming precision and good surface effect, and is smoother than the surface of a model made of PLA material. Currently, the most widely used is 3D printing technology which can be subdivided into SLA type (stereolithography) and DLP type (digital photopolymerization technology) depending on the light source used. Wherein the DLP type light source is from projector, LED screen or similar low ultraviolet intensity light source, each time the section of a model is irradiated to the resin by white light, the unmolded part is black, and by using the mode, each time one surface is molded, the speed advantage is obvious. It can be seen that the superiority and inferiority of the photosensitive resin performance is one of the important factors determining the DLP type 3D printing. The photosensitive resin is required to have the characteristics of low viscosity, high curing speed, low shrinkage, low swelling, good interlayer adhesion compatibility, high photosensitivity and the like. As the 3D printing material is monopolized by foreign industries, domestic related 3D printing materials basically depend on import, and the deterioration of the material can be caused by uncontrollable factors in the long-distance transportation process. The loss of direct monitoring of the raw materials results in uneven quality of the produced product.
Disclosure of Invention
The invention aims to solve the technical problem of providing acrylic glue suitable for digital photopolymerization 3D printing and a preparation method thereof, wherein the acrylic glue has photosensitivity, can overcome the defects of the traditional laser 3D printing medium, has the characteristics of high temperature resistance and small shrinkage deformation, ensures the forming effect of printed parts, and effectively improves the quality of the printed parts; the preparation method is simple to operate and suitable for industrial popularization and application.
The digital photo-polymerization acrylic glue comprises the following raw materials in parts by weight:
30-80 parts of acrylic glue, 10-20 parts of light-cured resin, 2-10 parts of dispersing agent, 0.5-2 parts of compatilizer, 0.5-2 parts of photoinitiator and 0.5-1 part of antioxidant.
Preferably, the acrylic glue is a flowing type polymethyl methacrylate acrylic resin.
Preferably, the light-cured resin is at least one of trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate, urethane acrylate, epoxy acrylate, polyester polyacrylate, and polyethylene glycol dimethacrylate.
Preferably, the dispersant is a mixture consisting of one or more of polyethylene glycol, ethyl acetate, n-octanol, n-decanol, oleic acid and vinyl acetate.
Preferably, the photoinitiator is an ionic initiator and a radical photopolymerization initiator in a ratio of 3: 1.
Preferably, the antioxidant is at least one of organic peroxide, acid anhydride and vinyl triethoxysilane.
Preferably, the compatibilizer is at least one of a cyclic acid anhydride type compatibilizer, a carboxylic acid type compatibilizer, an epoxy type compatibilizer, and an isocyanate type compatibilizer.
The preparation method of the digital photo-polymerization acrylic glue comprises the following steps:
dropwise adding the compatilizer into the acrylic glue, uniformly stirring, dropwise adding the photoinitiator and the antioxidant, and uniformly stirring;
adding a dispersing agent into the light-cured resin in a dark place;
the products of 1) and 2) are mixed homogeneously.
The invention has the beneficial effects that:
1. the preparation method is simple and convenient in preparation process, high in efficiency, excellent in stability, improved in printing precision, and suitable for the technical field of photocuring DLP (digital light processing) type 3D printing of high-precision and complex parts.
2. The 3D printing photosensitive resin prepared by the invention has good toughness after printing, solves the problem of poor elongation at break of DLP type 3D printing resin in the current market, and improves the printing precision of products.
3. The printing method mainly applies the acrylic glue as the substrate material for printing, the acrylic glue has good compatibility with various 3D printing pigments, and the printed product has excellent color rendering property and glossiness.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not 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. Examples 1,
The digital photo-polymerization acrylic glue comprises the following raw materials in parts by weight:
acrylic glue: 30 parts of mobile polymethyl methacrylate resin,
Light-curing resin: 3 parts of trimethylolpropane triacrylate, 4 parts of 1, 6-hexanediol diacrylate, 16 parts of urethane acrylate,
Dispersing agent: 2 parts of polyethylene glycol, 8 parts of vinyl acetate,
A compatilizer: 0.5 part of cyclic acid anhydride type compatilizer,
Photoinitiator (2): 0.9 part of ionic initiator, 0.3 part of free radical type photopolymerization initiator,
Antioxidant: 1 part of organic peroxide.
The preparation method of the digital photo-polymerization acrylic glue comprises the following steps:
dropwise adding the compatilizer into the acrylic glue, uniformly stirring, dropwise adding the photoinitiator and the antioxidant, and uniformly stirring;
adding a dispersing agent into the light-cured resin in a dark place;
and mixing the products of the two steps uniformly.
Example 2:
the digital photo-polymerization acrylic glue comprises the following raw materials in parts by weight:
acrylic glue: 40 parts of flowing type polymethyl methacrylate resin,
Light-curing resin: 5 parts of epoxy acrylate, 5 parts of polyester polyacrylate, 5 parts of polyethylene glycol dimethacrylate,
Dispersing agent: 1 part of polyethylene glycol, 1 part of ethyl acetate, 3 parts of oleic acid, 4 parts of vinyl acetate,
A compatilizer: 0.5 part of cyclic acid anhydride type compatibilizer, 0.5 part of carboxylic acid type compatibilizer, 0.5 part of epoxy type compatibilizer, 0.5 part of isocyanate type compatibilizer,
Photoinitiator (2): 0.9 part of ionic initiator and 0.3 part of free radical type photopolymerization initiator,
antioxidant: 1 part of vinyl triethoxysilane.
The preparation method of the digital photo-polymerization acrylic glue comprises the following steps:
dropwise adding the compatilizer into the acrylic glue, uniformly stirring, dropwise adding the photoinitiator and the antioxidant, and uniformly stirring;
adding a dispersing agent into the light-cured resin in a dark place;
and mixing the products of the two steps uniformly.
Example 3:
the digital photo-polymerization acrylic glue comprises the following raw materials in parts by weight:
acrylic glue: 60 parts of mobile polymethyl methacrylate resin,
Light-curing resin: 5 parts of 1, 6-hexanediol diacrylate, 5 parts of urethane acrylate, 5 parts of epoxy acrylate,
Dispersing agent: 3 parts of n-octanol, 3 parts of n-decanol, 1 part of oleic acid, 3 parts of vinyl acetate,
A compatilizer: 2 portions of isocyanate type compatilizer,
Photoinitiator (2): 0.9 part of ionic initiator, 0.3 part of free radical type photopolymerization initiator,
Antioxidant: and 0.5 part of acid anhydride.
The preparation method of the digital photo-polymerization acrylic glue comprises the following steps:
dropwise adding the compatilizer into the acrylic glue, uniformly stirring, dropwise adding the photoinitiator and the antioxidant, and uniformly stirring;
adding a dispersing agent into the light-cured resin in a dark place;
and mixing the products of the two steps uniformly.
Example 4:
the digital photo-polymerization acrylic glue comprises the following raw materials in parts by weight:
acrylic glue: 80 parts of mobile polymethyl methacrylate resin,
Light-curing resin: 10 parts of trimethylolpropane triacrylate, 15 parts of polyethylene glycol dimethacrylate,
Dispersing agent: 1 part of polyethylene glycol, 1 part of oleic acid, 6 parts of vinyl acetate,
A compatilizer: 1 part of cyclic acid anhydride type compatilizer, 1 part of isocyanate type compatilizer,
Photoinitiator (2): 1.2 parts of ionic initiator and 0.4 part of free radical type photopolymerization initiator
Antioxidant: 0.5 part of acid anhydride and 0.5 part of vinyl triethoxysilane.
The preparation method of the digital photo-polymerization acrylic glue comprises the following steps:
dropwise adding the compatilizer into the acrylic glue, uniformly stirring, dropwise adding the photoinitiator and the antioxidant, and uniformly stirring;
adding a dispersing agent into the light-cured resin in a dark place;
and mixing the products of the two steps uniformly.
Model printing is carried out on the photosensitive resin prepared in the embodiment by using a DLP type 3D printer, the surface of the model is smooth, the fineness of the model is high, and the measured physical properties are as follows:
the present invention is described in detail in order to make those skilled in the art understand the content and practice the invention, and the invention is not limited to the above embodiments, and all equivalent changes or modifications made according to the spirit of the invention should be covered by the scope of the invention.
Claims (8)
1. The digital photo-polymerization acrylic glue is characterized by comprising the following raw materials in parts by weight:
30-80 parts of acrylic glue
10-20 parts of light-cured resin
2-10 parts of dispersant
0.5 to 2 portions of compatilizer
0.5-2 parts of photoinitiator
0.5-1 part of antioxidant.
2. The digital photo-polymerization acrylic glue according to claim 1, wherein the acrylic glue is a flow type polymethyl methacrylate acrylic resin.
3. The digital photo-polymerization acrylic glue according to claim 1, wherein the photo-curing resin is at least one of trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate, urethane acrylate, epoxy acrylate, polyester polyacrylate, and polyethylene glycol dimethacrylate.
4. The digital photo-polymerization acrylic glue according to claim 1, wherein the dispersant is a mixture of one or more of polyethylene glycol, ethyl acetate, n-octanol, n-decanol, oleic acid and vinyl acetate.
5. The digital photo-polymerization acrylic glue according to claim 1, wherein the photo-initiator is an ionic initiator and a radical photo-polymerization initiator in a ratio of 3: 1.
6. The digital photo-polymerization acrylic glue according to claim 1, wherein the antioxidant is at least one of organic peroxide, acid anhydride and vinyl triethoxysilane.
7. The digital photo-polymerization acrylic glue according to claim 1, wherein the compatibilizer is at least one of a cyclic anhydride compatibilizer, a carboxylic acid compatibilizer, an epoxy compatibilizer, and an isocyanate compatibilizer.
8. The method for preparing the digital photo-polymerization acrylic glue according to any one of claims 1 to 7, which is characterized by comprising the following steps:
dropwise adding the compatilizer into the acrylic glue, uniformly stirring, dropwise adding the photoinitiator and the antioxidant, and uniformly stirring;
adding a dispersing agent into the light-cured resin in a dark place;
the products of 1) and 2) are mixed homogeneously.
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| CN201910977021.1A CN110628364A (en) | 2019-10-15 | 2019-10-15 | Digital photo-polymerization acrylic glue and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250894A (en) * | 2020-10-09 | 2021-01-22 | 苏州西雅克水族科技有限公司 | Preparation method of acrylic composite board |
| CN112266748A (en) * | 2020-10-09 | 2021-01-26 | 苏州西雅克水族科技有限公司 | Acrylic glue and preparation method thereof |
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| CN103622833A (en) * | 2012-08-21 | 2014-03-12 | 贺利氏古萨有限公司 | Dental adhesive agent for high-performance polymers |
| CN105246929A (en) * | 2014-01-13 | 2016-01-13 | 顶科股份有限公司 | Photo-curable resin compositions and method of using the same in three-dimensional printing for manufacturing artificial teeth and denture base |
| CN105820779A (en) * | 2016-05-23 | 2016-08-03 | 浙江美登特种薄膜有限公司 | UV tackifying glue |
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| CN112250894A (en) * | 2020-10-09 | 2021-01-22 | 苏州西雅克水族科技有限公司 | Preparation method of acrylic composite board |
| CN112266748A (en) * | 2020-10-09 | 2021-01-26 | 苏州西雅克水族科技有限公司 | Acrylic glue and preparation method thereof |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200514 Address after: 213200 No. 1668, Hua Cheng Road, Jintan District, Jiangsu, Changzhou Applicant after: Changzhou Additive Manufacturing Research Institute Co., Ltd Address before: 213200 No. 1668, Hua Cheng Road, Jintan District, Jiangsu, Changzhou Applicant before: Changzhou forerunner Intelligent Technology Co., Ltd |
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Application publication date: 20191231 |