مسحوق أبيض من ثاني أكسيد التيتانيوم R108-سطوع فائق للدهانات والبلاستيك

Titanium Dioxide R108 is a high-performance rutile-grade pigment designed to deliver unparalleled brightness, opacity, and durability in demanding industrial and decorative applications. As the benchmark for premium whitening agents, this advanced TiO₂ powder leverages cutting-edge surface treatment technology to meet the evolving needs of coatings, plastics, and specialty material manufacturers. With its exceptional light-scattering efficiency and eco-conscious formulation, R108 sets a new standard for brilliance and sustainability in modern manufacturing.

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‌Product Features‌

‌1. Unmatched Brightness & Opacity‌

Titanium Dioxide R108 achieves a ‌97.5% reflectance‌ at 457 nm wavelength, outperforming standard rutile grades by 8–12%. Its optimized crystal structure and narrow particle size distribution (0.2–0.3 µm) ensure:

• ‌Ultra-high hiding power‌: Covers substrates in single-coat applications (≤35 µm film thickness).
• ‌Neutral undertone‌: Eliminates yellowing in white plastics and UV-exposed coatings.
• ‌Gloss enhancement‌: Boosts DOI (Distinctness of Image) to >90 in automotive clearcoats.

These properties make R108 indispensable for premium architectural paints, automotive finishes, and high-clarity packaging films.

‌2. Advanced Weathering Resistance‌

R108’s proprietary alumina-silica coating provides multi-layer protection against environmental stressors:

• ‌UV durability‌: Retains 95% gloss after 2,000 h QUV-B exposure.
• ‌Chalk resistance‌: ≤1% weight loss in ASTM D4214 testing.
• ‌Acid rain tolerance‌: Stable in pH 3–11 environments, ideal for exterior building facades.

This resilience ensures long-lasting color fidelity in outdoor plastics (e.g., window profiles, stadium seats) and marine coatings.

‌3. Eco-Compliant Formulation‌

Engineered for sustainability without compromising performance:

• ‌Heavy metal-free‌: Complies with REACH, RoHS, and FDA 21 CFR 178.3297.
• ‌Low VOC profile‌: Enables compliance with EU Decopaint Directive 2004/42/EC.
• ‌Closed-loop production‌: 98% recycling rate for process byproducts.

Manufacturers can confidently use R108 in toys, food-contact plastics, and green building certifications (LEED, BREEAM).

‌4. Superior Dispersion & Processability‌

The hydrophobic surface treatment of R108 ensures seamless integration into diverse systems:

• ‌Low energy dispersion‌: Achieves Hegman 7+ fineness with 20% less milling time.
• ‌Thermal stability‌: Withstands extrusion temperatures up to 300°C (plastics).
• ‌Rheology control‌: Maintains viscosity stability in high-solids coatings (≥80% NV).

These attributes reduce production costs while enhancing throughput in injection molding and coil coating lines.

‌5. Chemical Inertness‌

R108 demonstrates exceptional resistance to:

• ‌Solvents‌: No swelling in ketones, esters, or hydrocarbons.
• ‌Alkalis/Acids‌: pH-stable in cementitious matrices (e.g., concrete coatings).
• ‌Oxidation‌: Zero catalytic activity in polyolefin degradation.

This inertness expands its utility to industrial maintenance paints and flame-retardant polymer composites.

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‌Technical Specifications‌

Property	Value/Range	Test Method
TiO₂ Content (%)	≥96.5	ISO 591-1
Oil Absorption (g/100g)	16–19	ASTM D281
Density (g/cm³)	4.1–4.3	ISO 787-10
pH Value	7.0–8.5	ISO 787-9
Volatile Matter (%)	≤0.5	ISO 787-2

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‌Key Applications‌

• ‌Architectural Coatings‌: Exterior emulsion paints, textured finishes.
• ‌Automotive Systems‌: Electrocoat primers, UV-cured topcoats.
• ‌Engineering Plastics‌: LED lamp housings,家电外壳.
• ‌Packaging‌: BOPP films, rigid food containers.
• ‌Specialty Uses‌: Cosmetic pigments, ceramic glazes.

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‌Competitive Advantages‌

1. ‌25% higher tinting strength‌ vs. conventional rutile TiO₂ grades.
2. ‌40% lower sedimentation rate‌ in solvent-borne coatings.
3. ‌Zero plate-out‌ in polypropylene extrusion processes.
4. ‌Halogen-free formulation‌ for electronics-grade polymers.

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‌Why Titanium Dioxide R108?‌

In an industry balancing performance demands with ecological responsibility, R108 delivers a dual advantage:

• ‌Performance Leadership‌: Exceeds ASTM D476 and ISO 591 standards for premium-grade TiO₂.
• ‌Sustainable Edge‌: 30% lower carbon footprint vs. chloride-process alternatives.
• ‌Supply Chain Reliability‌: Global availability with ≤0.3 ΔE batch consistency.

Whether formulating scratch-resistant laminates or self-cleaning facade coatings, R108 empowers manufacturers to achieve brilliance without compromise.

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