Comparison test PA6 with Omnistab LS 5519
In October we introduced the new light stabilizer for Polamide (PA); Omnistab LS 5519. To give more visibility about the performances of this product, we have carried out a comparison test. As a result, we can show the performances of PA6 when tested with and without the new light stabilizer. The test consists of mechanical properties, breaking strength, color fastness and heat aging testing. Firstly, let’s begin with the results of the mechanical properties:
Mechanical properties
| Test items (test standard) | PA6 | PA6 with LS5519 |
| Melt index (GB 3682-2000) | 74.30 | 71.20 |
| Charpy Notched Impact Srength (GB 1043-2008) | 11.80 | 12.10 |
| Charpy Impact Srength (GB 1043-2008) | NB | NB |
| Tensile Strength (GB 1040-2006) | 68.30 | 70.20 |
| Bending Strength (GB 9341-2008) | 75.10 | 75.20 |
| Flexural Modulus (GB 9341-2008) | 2430.00 | 2450.00 |
| Elongation at Break (GB 1040-2006) | 95.00 | 95.00 |
We can conclude from above results, the resistance ability will improve when using the light stabilizer compared to PA6 without any additive. The Melt index will reduce and the charpy notched impact strength increases. It exhibits higher tensile strength, flexural strength and flexural modules. At this point the elongation at break will remain the same, but when we continued testing by looking at the spinning and dying process this will also perform better. Some details about the spinning process before showing the results; screw at 255°C, Cabinet spinning speed at 4000m/min and Metering pump; 30r metering pump specification: 1.2ml/r.
Breaking strength
| Sample Name | PA6 | PA6 with LS5519 |
| Fineness | 115dtex/24f | 115dtex/24f |
| Breaking Strength | 2.653cN/dtex | 3.046cN/dtex |
| Elongation at Break | 57.42% | 59.78% |
After comparing the testing data, it shows significantly improvement of the breaking strength and elongation at break when adding the new light stabilizer for PA. To clarify, the quality of the nylon spinning product will increase.
After the spinning and dying process, we looked at the color fastness of PA6. One note, when K/S values of different samples differ no more than one at the same color, the dying depth is considered to be small. We did tests with the primary colors red, blue and yellow.
Color fastness
| K/S | PA6 | PA6 with LS5519 |
| Color – Red | 12.9 | 20.1 |
| Color – Blue | 8.6 | 12.6 |
| Color – Yellow | 18.7 | 27.4 |
With the results we can conclude that the color fastness of all colors increase by 4 K/s or more. This means the Omnistab LS 5519 improve the dying depth of nylon products significantly. The light stabilizer can improve tinting strength of pigments, enhance the dye ability and performance of nylon fibers. These improvements make efficient use of the dye, thereby reducing costs.
Heat aging
| Sample Name | PA6 | PA6 with LS5519 |
| Fineness | 115dtex/24f | 115dtex/24f |
| Breaking strength before heat aging | 2.62 cN/dtex | 2.93 cN/dtex |
| Breaking strength after heat aging | 2.24 cN/dtex | 2.86 cN/dtex |
| Fracture Retention after heat aging | 85.49% | 97.61% |
The Heat aging comparison test gave another interesting view of the breaking strength of Nylon. For instance, with the following table, we demonstrate the differences between the breaking strength if we compare PA6 with and without the LS 5519. Without the light stabilizer, the breaking strength of PA6 was reduced by 0.38 cN/dtex after heating. However, if you add the Omnistab LS 5519, the breaking strength is reduced to only 0.07 cN/dtex after heating.
With the above comparison test we can conclude the Omnistab LS 5519 can:
- Improve the melt stability of nylon,
- The ability of heat aging resistance of nylon melt,
- Reduce the fiber breakage rate
- Improve the stability of pigments.
- It can remain good color fastness under sun exposure condition.
- The lifetime and quality will improve
- Reduce costs of dyes.
If you still have questions about our Omnistab LS 5519 or if you would like to know more, please send us your inquiry through the contact form.
Modified plastic in lightweight cars
In recent years, the development of the automotive industry revolves around lightweight, environmental protection and…
How to alleviate polyurethane yellowing
In this article we will explain how to alleviate polyurethane yellowing. Polyurethane products are widely…
Making high-end textiles UV-resistant
UV-resistant treatment is an essential part of the functional textile finish for making high-end textiles…
Silicone adhesives
The silicone adhesives used in the early days came from natural materials. For instance, animal…
Optical Brighteners
Optical Brighteners are additives to mask the inherent yellowness and improve colors and make your…
Water-based sustainable paint
As people’s awareness of health and environmental protection is gradually improving, water-based sustainable paint is…
Omnistab Benzotriazole UV absorbers
Omnistab Benzotriazole UV absorbers have exceptionally strong and broad UV absorption properties throughout the UV…
Limit electricity for carbon reduction
The Chinese government has decided to limit electricity for carbon reduction. China is aiming to…
Excellent hydrolysis resistance phosphite antioxidant
Do you choose the right antioxidant to increase the heat aging resistance of materials? The…
Plastics with UV absorbers, a “Protective umbrella”
Almost all plastics that are exposed to sunlight or other outdoor weather conditions require protection….
Efficient liquid UV absorber
The Omnistab UV 1 is an efficient liquid UV absorber, which can absorb ultraviolet light…
Nucleating agent for polyamide
The amorphous form of polyamide is obtained by rapid quenching of molten polymer to a…
Omnistab series for automotive coatings
Automotive coating is one of the fastest developing coatings worldwide. New products are usually better…
UV Filter Sunscreen
Meteorologically, it is still winter in the Northern Hemisphere. However, the first rays of the…
What do you know about Powder coating?
It is quite simple, but we would like to explain it briefly. Powder coating is…
Adhesives and Sealants protective products
Adhesives and sealants are essential products in many industries. Their applications range from paper, packaging,…
The world of fiber applications
What are fiber applications? Today, more than half of all fiber consumed is synthetic. For example,…
“Gorgeous modification” of Benzotriazole UV absorber
Omnistab UV 360 is a very efficient benzotriazole UV absorber. It has good UV absorption…
Expectations early 2021
This year was different from other years and a huge challenge for everyone. Working differently…
New product groups
New product groups coming soon! We are continuously working on our product portfolio to serve…
Today’s highlight is a triazine UV absorber
A triazine UV absorber has excellent properties. In addition, the dosage you need to put…
Antioxidant for long-term thermal stabilization
Looking for an antioxidant for long-term thermal stabilization? You probably need an asymmetric hindered phenol…
UV Absorber used in a wide wavelength spectrum
In this article we will explain more about the UV absorber used in a wide…
Temperature resistant anti oxidant
An excellent temperature resistant anti oxidant is the Omnistab AN 80. The organic combination of…
PP Fibers
Looking for more stability of your PP fibers? Our Omnistab LS 119 is the right…
PE wax
In this article we will explain the characteristics and features of polyethylene wax (PE wax)….
Evaluation of new light stabilizers
Choosing your product among all available light stabilizers in the market is challenging. Based on…
Light stabilizer 2020
As of June 2020, we expand our product range with the development of, ironically, Light…
Sustaining Textile
Producing sustainable products is a hot topic. Especially in the field of clothes, it all…
Prolong the lifecycle of your engineering plastics
Engineering plastics and resins instead of metal? Yes we can. In this article we will…
UV absorbers in cosmetic industry
Sunscreen is an eternal topic in cosmetics, but it cannot exist without UV absorbers in…
Chinaplas 2021
Under current circumstances of the COVID-19, the Chinaplas will be postponed again. The 34th Chinaplas…
Omnistab Additives in Water-based Coatings
Water-based coating are coatings that uses water as a diluent and does not contain organic…
Corona virus
In this news letter we give you an update regarding to the latest Corona virus…
Additives for polyolefins
What are polyolefins? Polyolefin is a type of polymer of olefins. For example, polypropylene or…
Principles of stabilizers
Light stabilizers are important additives in rubber and plastic applications. In this article we focus…
Happy Chinese New Year
It has been a pleasure to work with you this year, we wish you a…
Anti yellowing agents
We launched two anti yellowing agents, Omnistab HN 130 & Omnistab HN 150. Both are…
Happy holidays
On behalf of our team: we wish you happy Holidays, all the best to you…
Light stabilizer for nylon – Omnistab LS 5519
Omnistab LS 5519 is a highly efficient light stabilizer for nylon. For example, polyamide (PA)….
K fair 2019 in Düsseldorf
Your global Partners in Chemicals will be exhibiting at the upcoming K fair in Düsseldorf…
Liquid Anti Oxidant
In the world of additives you see a large group of anti oxidants in powder, granular and flake form. However, if you are looking for a liquid anti oxidant
UV absorber for agriculture film
There are many different UV absorbers, but there is one that really stands out if…
Natural Rubber Latex
Since the start of Partners in Chemicals we offer the market Natural Rubber Latex. Natural…
Explosion Eastern China
An explosion at a pesticide plant in eastern China is the latest in a series…
End of cooperation with the NRC Group
Partners in Chemicals has decided, in mutual agreement with Nordmann Rassmann (NRC), to end our…
Evaluation of three UV absorbers
In this article we evaluate three different UV absorbers. They have advantages and associated characteristics….
High performance light stabilizer for coatings
In this article we highlight the performances of our Omnistab LS 123. This product is…
Near Infrared Absorber for Laser Beam Welding
Laser Technology Laser technology was originally used in 1970 to weld plastic film with CO2…
Update on chemical factory closures in China
The main purpose of China’s “Cease-Work Orders” is to optimize the atmospheric environment and control…
Introducing N3coat
It’s all about people “I believe in an honest and open way of doing business….
Omnistab NIR LW
The right laser absorber The diode laser has a wavelength of 800 ~ 1000nm and…
How to stop the yellowing of polyurethane flexible foam
A great number of manufacturers, including those that make high-grade sponge, have tried different solutions….
Liquid triazine UV absorber
Omnistab UV 400 is a liquid triazine UV absorber for coating products. We specially developed…
Chinaplas 2017
Partners in Chemicals presents Together with Longquan Chemicals, our booth in Hall 9.3 on stand…
Daniel Knegt
ITU WPS Gold Coast Recently he participated in the ITU WPS Gold Coast with his…
OMNISTAB UV 1600
Therefore, polymer additives are essential during manufacturing processes. It safeguards the exquisite look of surfaces…
Restrain on Chinese chemical production
The Chinese government started a straightforward campaign to decrease water pollution to control the waste…
ICG Specialty Group expands portfolio
The ICG Specialty Group is a global supplier of polymer additives whose proprietary Omnistab brand…
European Coatings Show 2016
During the European Coatings show we also showed the new generation product: Omnistab NIR. Its…
New environmental laws implemented
Why is the Chinese Chemical industry struggling? “There is still large gap in result between…
Introducing partnership with Deltachem
A Chinese partner of choice “We work with people from the Netherlands, China, Israel, Dubai,…