Special encapsulation-type hyperdispersantCoordination-type rare-earth organic polymer · RE COORDINATION POLYMER
Overcomes the inherent weakness of conventional coupling agents — markedly improving the wetting and dispersion of inorganic/organic fillers in a polyolefin matrix, and the impact strength of the composite. impact strength — made for coating dusting powders.
- Coordination-type rare-earth structure
- Viscosity reduction ≥ 68%
- Thermal decomposition ≥ 283 ℃
- Toughening · higher impact ↑
- Melting temperature
- 0 – 0 ℃
- Thermal decomposition
- ≥ 0 ℃
- Viscosity reduction
- ≥ 0 %
- Appearance
- white to pale-yellow waxy solid
Coordination encapsulation · from wax lump to coating layer
Switch the temperature and watch the coating layer form on the powder surface after melting at 90–105 ℃.
Overcomes the inherent weakness of conventional coupling agents
Conventional coupling agents interact poorly with the matrix; R1848 rebuilds the interface with a coordination-type rare-earth organic polymer structure, is extremely compatible with polyolefin matrices, and markedly improves the wetting and dispersion of inorganic or organic particles in the resin matrix.
A “coat” process for dusting powders
After melting at 90–105 ℃ it is poured onto the powder surface and forms a uniform coating layer through high-speed mixing: for heavily dusting powders it provides a unique coupling-and-solubilising and coating-dispersion effect, lowers melt viscosity, suppresses dust, and allows filler loading to be increased during processing.
Impact strength greatly improved
Fillers/pigments treated with R1848 raise the stiffness and thermal stability of the material while greatly increasing the impact strength of the composite, with a clear toughening effect; for organic pigments it also offers unique dispersion and colour-boosting.
Physical properties and technical data (TDS)
Typical ex-works values; a COA test report accompanies every batch.
Main benefits and core value
Interface, rheology and colour — one rare-earth encapsulation additive answers all three.
Interfacial compatibility · toughening
Overcomes the poor interfacial action of conventional coupling agents; the treated filler raises stiffness and thermal stability while greatly increasing impact strength.
Coupling and solubilising · lower viscosity
Lowers the melt viscosity of the resin compound by ≥ 68%, improving processing flow and allowing a higher filler loading.
Dispersion and colour boost · masterbatch
Offers unique dispersion and colour-boosting for organic pigments, and is especially suited to pigment treatment for concentrate masterbatches (hover to see the colour boost).
How to use (pre-treatment) and reference dosage
A four-step pre-treatment process; click a step to highlight it.
Powder into the mixer
Add the powder to a high-speed kneader.
FEED · high-speed kneaderMelt and pour
Pour the melted encapsulation-type dispersant R1848 onto the powder.
MELT · direct melt feed · no diluentLow-speed pre-mix
Start the high-speed mixer at low speed for 2 minutes to wet and spread it.
LOW · low speed 2 minHigh-speed coating and discharge
Run at high speed for about 10 minutes, then discharge.
HIGH · high speed ~10 minReference dosage guide
Packing and storage notes
Sample request and technical support
Submit the form and a technical consultant will contact you within 24 hours to arrange a sample.
Why choose R1848
01Product positioning
Name and positioning. The data page is titled "Special encapsulation-type hyperdispersant R1848"; chemical composition "coordination-type rare earth organic polymer"; scope of application "suitable for encapsulation of high-dusting powders of high-grade organic and inorganic raw materials". (Data source: product handbook / official product data)
Positioning background (as recorded): "Developed for special powder encapsulation, such as aluminum powder encapsulation, etc. Aluminum silver powder is not easily dispersed in plastics and has high dusting; when the mixing temperature is high, hazards such as fire and explosion can easily occur. Using R1848 specifically to treat aluminum silver powder can reduce the hazards of aluminum powder and more effectively improve the compatibility and dispersibility of aluminum powder in plastics. To produce color masterbatch, only aluminum powder and carrier resin need to be added; no additional additives need to be added." (Data source: product handbook / official product data)
Main effects (as recorded): "It overcomes the weakness of poor interfacial interaction between traditional coupling agents and the matrix, has good compatibility with polyolefin matrices, and can improve the wettability and dispersibility of inorganic or organic particles in resin matrices. Fillers and pigments treated with it, while improving material rigidity and thermal stability, greatly increase the impact strength of composite materials and have a marked toughening effect." (Data source: product handbook / official product data)
Effects continued (as recorded): "It has unique coupling-solubilization and encapsulation-dispersion effects on powders with high dusting, can reduce the melt viscosity of resin composite systems, improve processing flowability, and during processing the filler dosage can be appropriately increased. It has unique dispersibility and color-enhancing function for organic pigments and is suitable for pigment treatment for various concentrated color masterbatches." (Data source: product handbook / official product data)
- Physicochemical points: Appearance "white or pale yellow waxy solid"; melting temperature 90–105℃; viscosity reduction (%) ≥ 6 8; thermal decomposition temperature (℃) ≥ 283 (as recorded); rare earth metal content (Re%) 1.1–1.4; density 0.89kg/m³ (as recorded).
- Usage points: Pretreatment method—add the powder to a high-speed kneader, pour the melted R1848 onto the powder, start the high-speed mixer at low speed for 2 minutes, then start high speed for about ten minutes or so, after which it can be discharged.
- Packaging and precautions: packed in PE plastic drums, 20kg/drum; no diluent required, use directly; shelf life 24 months.
- This grade is a historically listed grade (Discontinued); records are retained; this page is compiled as-is from historical data.
02Formulation system & mechanism of action
Composition and route: coordination-type rare earth organic polymer—the data record that it overcomes the weakness of poor interfacial interaction between traditional coupling agents and the matrix and has good compatibility with polyolefin matrices. (Data source: product handbook / official product data)
Encapsulation and coupling: it has coupling-solubilization and encapsulation-dispersion effects on powders with high dusting; improves the wettability and dispersibility of inorganic or organic particles in resin matrices; can reduce the melt viscosity of resin composite systems and improve processing flowability. (Data source: product handbook / official product data)
Effects (as recorded): fillers and pigments treated with it, while improving material rigidity and thermal stability, greatly increase the impact strength of composite materials and have a marked toughening effect; it has unique dispersibility and color-enhancing function for organic pigments. (Data source: product handbook / official product data)
- Melting — encapsulant melting (melting temperature 90–105℃)Waxy solid; the method is "pour the melted encapsulation-type dispersant R1848 onto the powder".
- Mixing — high-speed kneader treatmentAdd the powder to the high-speed kneader; start at low speed for 2 minutes, then run at high speed for about ten minutes or so, after which it can be discharged.
- Application — color masterbatch and powder treatmentUsed for encapsulation of metal powders such as aluminum silver powder; to produce color masterbatch, only aluminum powder and carrier resin need to be added, with no additional other additives required (as stated in the data).
03Key parameters
The table below summarizes the main components and physicochemical properties of R1848 recorded in the source materials (original source wording and units retained).
| Item | Value / description |
|---|---|
| Main component | Coordination-type rare earth organic polymer |
| Appearance | White or light yellow waxy solid |
| Melting temperature (℃) | 90–105 |
| Viscosity reduction (%) ≥ | 6 8 |
| Thermal decomposition temperature (℃)≥ | 283 |
| Rare earth metal content (Re%) | 1.1–1.4 |
| Density | 0.89kg/m³ |
This grade's entry does not list prohibited items or special tests; items not recorded in the source materials do not appear in this table. For dosage conventions, see Section 4. (Data source: product handbook / official product data)
04Recommended dosage window
The source materials provide two reference dosage levels by treatment object:
| Scenario | Dosage | Conditions & notes |
|---|---|---|
| Aluminum powder encapsulation | 8%-10% | Source text: 'Aluminum powder encapsulation 8%-10%' |
| Brightening agent encapsulation | 5%-8% | Source text: 'Brightening agent encapsulation 5%-8%, etc.; the specific addition amount should be adjusted appropriately with reference to the oil absorption value and fineness of the powder.' |
The two entries are listed separately by treatment object; the source also notes that 'the specific addition amount should be adjusted appropriately with reference to the oil absorption value and fineness of the powder'—that is, the values are adjusted based on the physical properties of the powder. Both levels are transcribed as recorded, without conversion.
The two levels are reference dosages recorded in the source materials; the denominator is not specified; this page does not supply a denominator or perform cross-grade conversion. (Data source: product handbook)
05Applications
The application directions listed in the source materials are as follows:
- Aluminum silver powder / metal powder
- Treating aluminum silver powder reduces hazard and improves its compatibility and dispersibility in plastics; to produce color masterbatch, only aluminum powder and carrier resin need to be added.
- Special powder encapsulation
- 'Suitable for powder encapsulation of high-end organic and inorganic raw materials with significant dust generation.'
- Concentrated color masterbatch pigment treatment
- It has unique dispersibility and color-enhancing function for organic pigments, and is suitable for pigment treatment for various concentrated color masterbatches.
06How it differs from related grades
R1848 belongs to the coating agent category (coordination-type rare earth organic polymer), and its target differs from those of R101A and RPEG20 in the same brochure; select according to the system. Comparison as follows:
| Model | Documentation positioning (key points) | Main system / target | Dosage (as documented) |
|---|---|---|---|
| R1848 | Special coating-type hyperdispersant; coordination-type rare earth organic polymer | Coating of metal powders such as aluminum silver powder and powders with high dust generation; pigment treatment for concentrated color masterbatch | Aluminum powder coating 8%-10%; whitening agent coating 5%-8% |
| R101A | Polyol-modified silicon coating agent (titanium dioxide route / inorganic pigment route) | Organic coating treatment of titanium dioxide and various inorganic powders | 0.1%-3% (by powder weight) |
| RPEG20 | Hyperdispersant-type organic coating agent (for titanium dioxide) | Coating and dispersion treatment of titanium dioxide (water dilution 3:1) | According to experimental dosage (990g titanium dioxide : 10g RPEG20) |
Reading note: The comparison only describes each grade's documentation positioning and intended targets; the three grades use different dosage bases, and the values are not interchangeable. (Data source: product handbook)
Replacement & selection
For selection and replacement evaluation after Discontinued status, refer to the following in-production information:
Replacement statement: Official documentation has not published a direct replacement model for this grade; according to the site's existing wording, 'for replacement selection, see currently marketed models in the same series', the following are in-production models for powder coating / activation treatment, for reference in selection evaluation (same-use reference; does not represent an official replacement statement).
- Inorganic powder coating agent for titanium dioxide/carbon black, etc. R101AIn production for the same use (powder coating)In-production coating agent for coating treatment of inorganic powders (titanium dioxide / carbon black, etc.).
- Multifunctional filler activator R100AIn production for the same use (filler activation)Multifunctional filler activator for activation treatment of inorganic powders.
Note: For replacement evaluation, combine with small-scale system trials; the reference grades use a different dosage basis from this grade, and the values are not interchangeable. (Data source: product handbook / official product data)
07Usage & storage
The following key points are taken item by item from the documentation; items not listed in the documentation are not drafted on our behalf.
Documented (transcribed as-is)
- Method of use (pre-treatment method): Add the powder to a high-speed kneader, pour the melted coating-type dispersant R1848 onto the powder, start the high-speed mixer at low speed for 2 minutes, then start high speed for about ten minutes, after which it can be discharged.
- Reference dosage: aluminum powder coating 8%-10%, whitening agent coating 5%-8%; for the specific addition amount, add an appropriate amount according to the oil absorption value and fineness of the powder.
- Precautions: a) Keep away from fire and moisture, store sealed; store in a dry, cool place protected from light. b) Shelf life 24 months; use up within the shelf life. c) This product requires no diluent and should be used directly.
- Packaging specifications: PE plastic drums: 20kg/drum.
Not documented (not drafted on this page)
- The entry for this grade does not list prohibited items or safety operation data (MSDS level)—not recorded in the existing documentation.
08FAQ
What is R1848?
A special coating-type hyperdispersant: chemical composition 'coordination-type rare earth organic polymer'; developed for special powders such as aluminum powder coating—the documentation records that it can reduce the hazard of aluminum powder and improve the compatibility and dispersibility of aluminum powder in plastics; when used to produce color masterbatch, only aluminum powder and carrier resin need to be added. (Data source: product handbook)
What is the reference dosage? What is the denominator?
Two levels are transcribed as-is: aluminum powder coating 8%-10%; whitening agent coating 5%-8%; the documentation additionally notes 'the specific addition amount should be appropriately added according to the oil absorption value and fineness of the powder.' The denominator is not specified, and this page does not draft it. (Data source: product handbook)
How is it used?
Pre-treatment method: Add the powder to a high-speed kneader, pour the melted R1848 onto the powder; start at low speed for 2 minutes, then start high speed for about ten minutes, after which it can be discharged. This product requires no diluent and should be used directly; keep away from fire and moisture, store sealed; shelf life 24 months. (Data source: product handbook)
What is the current status of R1848?
R1848 is listed as a Discontinued grade (documentation retained). The content on this page is compiled as-is from historical documentation and is not a recommendation for a currently marketed product; for selection, refer to current in-production grades and the latest documentation. (Data source: official product data)
What is the replacement model for R1848?
Official documentation has not published a direct replacement model; Section 6 of this page, 'Replacement and Selection', lists in-production models in the same family / for the same use (including on-site links) for selection evaluation.
Can R1848 still be purchased? Is there inventory?
This grade is listed as Discontinued (documentation retained); this page does not publish it as currently marketed information; for supply and selection, refer to current in-production grades and official information.
Why was R1848 discontinued?
Reason for discontinuation: not recorded in the existing documentation (not drafted on this page).
AppendixData sources
Data on this page comes from product documentation and can be traced item by item:
- Product handbook: R1848 entry (chemical composition / physicochemical properties / main functions / scope of application / usage and dosage / precautions / packaging specifications); same-series comparison section (R101A, RPEG20, etc. entries).
- Cross-verification of documentation: excerpts of the same grade entry are consistent across three documents—the handbook, the hyperdispersant series fascicle, and the content-edited version (single source family, cross-verified across three booklets).
Not covered by the source material (not written on this page — to be added later)
- 'Viscosity reduction magnitude (%) ≥ 6 8' is the original layout in the documentation (with a space between the two digits)—transcribed as-is, unchanged; the meaning is subject to the documentation provider.
- The dosage denominator is not specified ⇒ this page transcribes the two levels as-is and does not draft a denominator.
- Prohibited items and safety operation data (MSDS level): not recorded in the existing documentation.
R1848 is listed as a discontinued grade; the documentation is retained. This page is compiled from historical source material and is not a recommendation of a currently supplied product; please base your selection on current production grades and the latest documentation.