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March 23, 2022
SLA 3D printing
Sla 3D Printing
Which material is most commonly used for 3D printing? It is estimated that the first material that pops up in the minds of people familiar with the 3D printing industry is photosensitive resin.
Photosensitive resin is a kind of 3D printing material, which is similar to ABS material, with smooth surface, high precision, paintable surface and acceptable hardness.
Photosensitive resin is very suitable for printing prototype models, such as design models, and there are also special requirements for functions in addition to appearance.
Such as high temperature resistance or higher toughness.
Photosensitive resin is formed by SLA/DLP technology, SLA is also called photocuring molding, which uses ultraviolet light or other beams to cure
Liquid photosensitive resin.
Photosensitive resin, literally speaking, is a resin material that is sensitive to light, which will quickly cure and form after light irradiation.
Compared with SLA, DLP-printed items have a smoother surface and higher molding quality, so many DLP models are positioned.
Jewelry grade.
The characteristics and applications of photosensitive resins are introduced in detail below.
Characteristics of photosensitive resin
Photosensitive resin is generally in a liquefied state, and objects printed with this material generally have the characteristics of high strength, high temperature resistance, and waterproofing. However,
If the photosensitive resin material is not used for a long time, it is easy to cause hardening.
The specific characteristics of photosensitive resin are as follows:
1. Low viscosity;
2. Small curing shrinkage;
3. Fast curing rate;
4. Small swelling;
5. High light sensitivity;
6. High degree of curing;
7. High wet strength.
In addition, the price of photosensitive materials is relatively expensive compared to desktop-grade PLA, and at the same time, since it needs to be poured into the container when used, it is easy to lead to waste.
Application of photosensitive resin
The 3D printed products of photosensitive resin materials have good details and high surface quality, and can be colored by processes such as spray painting. But photosensitive resin printed items
If exposed to light for a long time, it will gradually become brittle and yellow. This material is mostly used for printing requirements on model accuracy and surface quality
Higher detailed models, complex design models, such as prototypes and figures,
Jewelry or precision fittings, etc. However, it is not suitable for printing large-sized models. If you need to print large-sized models, you need to disassemble and print.
In addition to the high toughness, high temperature resistance and common photosensitive resins mentioned above, there are also translucent and fully transparent photosensitive resins. But need
As a reminder, translucent and fully transparent
After printing, post-grinding is required, and the transparency will be slightly worse for the places that cannot be polished.
Photosensitive resin material not only has good molding effect, but also is relatively cheap, so it has become the preferred material for printing prototypes. Take a sample before the product goes on sale
Is it feasible to perform visual and functional verification,
This proofing fee is really cost-effective. Compared with direct production without proofing, a large part of the money can be saved.
However, there are also many customers who have such a question. As a liquid material, photosensitive resin also has a chemical odor. So is it toxic?
In fact, the photosensitive resin material cannot simply be said to be toxic or non-toxic. The toxicity must be discussed in combination with the dose. Generally, after normal light curing,
All are no problem. Light-curing resin is the matrix resin of light-curing coating, it is compounded with photoinitiator, reactive diluent and various additives.
That constitutes a photocurable coating. Light-curing coatings are the earliest example of the large-scale successful application of light-curing technology in industry, and are also the current light-curing industry.
The products with the largest production and sales volume, so you can contact them with confidence. In fact, from the chemical materials we commonly use in our daily life, it is not difficult to find most polymers.
They are all non-toxic, usually used plastics. In fact, many melamine tableware, that is, the kind of plastic that is a bit like porcelain, is polymelamine.
Everyone should be familiar with cyanamide, but its polymer is non-toxic. Of course, some black workshops use poor raw materials or poor craftsmanship, which are indeed toxic.
Therefore, users who are worried that the photosensitive resin material is toxic and will cause harm to the human body can rest assured that as long as the photosensitive resin material you purchase is normal, in addition to
In addition to the need to pay attention to ventilation protection during the printing process, the items after 3D printing are non-toxic and can be used and touched with confidence.
Which material is most commonly used for 3D printing? It is estimated that the first material that pops up in the minds of people familiar with the 3D printing industry is photosensitive resin.
Photosensitive resin is a kind of 3D printing material, which is similar to ABS material, with smooth surface, high precision, paintable surface and acceptable hardness.
Photosensitive resin is very suitable for printing prototype models, such as design models, and there are also special requirements for functions in addition to appearance.
Such as high temperature resistance or higher toughness.
Photosensitive resin is formed by SLA/DLP technology, SLA is also called photocuring molding, which uses ultraviolet light or other beams to cure
Liquid photosensitive resin.
Photosensitive resin, literally speaking, is a resin material that is sensitive to light, which will quickly cure and form after light irradiation.
Compared with SLA, DLP-printed items have a smoother surface and higher molding quality, so many DLP models are positioned.
Jewelry grade.
The characteristics and applications of photosensitive resins are introduced in detail below.
Characteristics of photosensitive resin
Photosensitive resin is generally in a liquefied state, and objects printed with this material generally have the characteristics of high strength, high temperature resistance, and waterproofing. However,
If the photosensitive resin material is not used for a long time, it is easy to cause hardening.
The specific characteristics of photosensitive resin are as follows:
1. Low viscosity;
2. Small curing shrinkage;
3. Fast curing rate;
4. Small swelling;
5. High light sensitivity;
6. High degree of curing;
7. High wet strength.
In addition, the price of photosensitive materials is relatively expensive compared to desktop-grade PLA, and at the same time, since it needs to be poured into the container when used, it is easy to lead to waste.
Application of photosensitive resin
The 3D printed products of photosensitive resin materials have good details and high surface quality, and can be colored by processes such as spray painting. But photosensitive resin printed items
If exposed to light for a long time, it will gradually become brittle and yellow. This material is mostly used for printing requirements on model accuracy and surface quality
Higher detailed models, complex design models, such as prototypes and figures,
Jewelry or precision fittings, etc. However, it is not suitable for printing large-sized models. If you need to print large-sized models, you need to disassemble and print.
In addition to the high toughness, high temperature resistance and common photosensitive resins mentioned above, there are also translucent and fully transparent photosensitive resins. But need
As a reminder, translucent and fully transparent
After printing, post-grinding is required, and the transparency will be slightly worse for the places that cannot be polished.
Photosensitive resin material not only has good molding effect, but also is relatively cheap, so it has become the preferred material for printing prototypes. Take a sample before the product goes on sale
Is it feasible to perform visual and functional verification,
This proofing fee is really cost-effective. Compared with direct production without proofing, a large part of the money can be saved.
However, there are also many customers who have such a question. As a liquid material, photosensitive resin also has a chemical odor. So is it toxic?
In fact, the photosensitive resin material cannot simply be said to be toxic or non-toxic. The toxicity must be discussed in combination with the dose. Generally, after normal light curing,
All are no problem. Light-curing resin is the matrix resin of light-curing coating, it is compounded with photoinitiator, reactive diluent and various additives.
That constitutes a photocurable coating. Light-curing coatings are the earliest example of the large-scale successful application of light-curing technology in industry, and are also the current light-curing industry.
The products with the largest production and sales volume, so you can contact them with confidence. In fact, from the chemical materials we commonly use in our daily life, it is not difficult to find most polymers.
They are all non-toxic, usually used plastics. In fact, many melamine tableware, that is, the kind of plastic that is a bit like porcelain, is polymelamine.
Everyone should be familiar with cyanamide, but its polymer is non-toxic. Of course, some black workshops use poor raw materials or poor craftsmanship, which are indeed toxic.
Therefore, users who are worried that the photosensitive resin material is toxic and will cause harm to the human body can rest assured that as long as the photosensitive resin material you purchase is normal, in addition to
In addition to the need to pay attention to ventilation protection during the printing process, the items after 3D printing are non-toxic and can be used and touched with confidence.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.