Overview of Arkema Crayvallac SLX, Micro Powder Polyamide Wax Rheological Additive:
Arkema CRAYVALLAC SLX is a high-performance micronized polyamide rheology additive developed for moisture cured MS sealants produced at low temperatures. arkema The main features of SLX are:
100% active ingredient
Can be effectively activated at 60-90 ℃
Reduce production cycle
Endowing the system with shear thinning rheological properties
Very good extrusion performance
Excellent anti sagging and anti collapse performance
Small impact on modulus
Excellent storage stability
arkema SLX Moisture cured MS adhesive also suitable for low-temperature production.
arkema CRAYVALLAC SLXRecommended usage amount of micro powder polyamide wax rheology additive:For single component moisture cured MS sealant, excellent collapse and sagging control performance can be achieved based on 1-5% of the total formula dosage.
| Product Code | type | Addition amount (wt%) |
| crayvallac slx | Polyamide wax | 2. 0-5. 0 |
| Product specifications | Other properties |
Particle size distribution (Malven Mastersizer)
Laser Particle Size Distribution Analyzer (CR 005) | Specific gravity (25 ℃, g/cm3),
(CR 006) | zero point nine nine |
DV.1 min
DV.9 max | 1.8µm
15.0µm | Bulk density, g/cm3,
(CR 016) | 0.4-0.6 |
| Capillary melting point determination (CR 003) | 121-135℃ | appearance | Grey white powder |
Arkema Crayvallac SLX, Micro Powder Polyamide Wax Rheological Additive Method Summary:
Add high-speed dispersion together with pigment fillers, with an activation temperature of 60-90 ° C
arkema CRAYVALLAC SLXDetailed method and steps for adding micro powder polyamide wax rheological additives:
Arkema CRAYVALLAC SLX is a high-performance micronized polyamide rheology additive developed for low temperature production of single component MS sealants, typically added at temperatures between 60-90 ℃.
In the moisture cured MS sealant formula, Arkema It is best to add SLX together with MS polymer and plasticizer in the initial stage to a high-speed dispersion device with a heating device, and then add pigments and fillers. Maintaining a temperature of 60-90 ℃ during the vacuum high-speed dispersion process can fully activate CRAYVALLAC SLX. This process is usually maintained at 80 ℃ for about 30 minutes, or to achieve the desired dispersion effect and qualified moisture content (usually<800ppm). Next, the system is cooled to a temperature at which the desiccant, adhesion promoter, and catalyst can be safely added.
The activation process is a process of integrating Arkema The process of SLX transforming from a powder state to a fibrous network structure with interactions. It is precisely this network structure that ultimately endows the system with shear thinning properties. This shear thinning characteristic provides the ability to maintain high viscosity under low shear conditions, thereby achieving excellent anti settling performance; During construction, that is, under high shear conditions, the viscosity of the system will decrease. The ultimate result is that the system has good anti sinking properties and is easy to construct. Activation at too low a temperature or insufficient activation time will result in ineffective network structure formation and poor resistance to sagging and collapse.
The successful production of MS sealant relies heavily on the control of moisture content throughout the entire production and storage process. For this reason, all pigments and fillers are usually preheated before being added to MS polymers. Similarly, some special components with low moisture content may be used.
The vacuuming process during the heating process has two key functions: preventing the inhalation of moisture and removing residual moisture from the raw materials.
For moisture cured MS sealants, it is particularly recommended to quickly disperse all additives and not allow direct contact between additives and resin components. Extended contact may result in insoluble crusts that appear as small particles in the final sealant.
Given the different formulation systems, production processes, and application fields, we strongly recommend using CRAYVALLAC SLX Conduct a comprehensive evaluation to ensure that it meets the requirements. Additionally, we do not recommend using CRAYVALLAC SLX in coating systems.
arkema CRAYVALLAC SLXStorage requirements:
Arkema CRAYVALLAC SLX should be stored in its original packaging bag, placed in a dry and temperature controlled environment of 5-30 ℃, and protected from direct sunlight or freezing. The product is valid for four years when stored under the above conditions.
Arkema Crayvallac SLX, a micro powder polyamide wax rheology additive, is mainly applied in the following fields:
● Compared with SL, it has a lower activation temperature and is also suitable for sealants and adhesives such as MS, SPUR, STPE, etc. It has good shear thinning rheological properties.
● Can shorten the production cycle.
● Excellent anti sagging, anti collapse, and storage stability performance.
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