PP T30S | PP Homo | PP Raffia Grade

PP T30S is a general-purpose polypropylene homopolymer resin. It is also one of the world’s largest and most widely used PP grades. Polypropylene t30s has become a “benchmark product” in the general PP market due to its mature technology and sufficient production capacity, and is widely used in the fields of consumer packaging and industrial basic materials.

The production process of PP T30S is mainly based on gas phase polymerization or bulk-gas phase polymerization combined process. The isotactic index (≥95%) is controlled by high-activity catalysts to form a regular molecular chain structure, taking into account both mechanical properties and processing stability.

Characteristic	Specific parameters	Test conditions
Density	0.90-0.91 g/cm³	ISO 1183
Melt flow rate (MFR)	2.0-4.0 g/10min	GB/T 3682 (230℃,2.16kg)
Tensile yield strength	≥29-31.5 MPa	GB/T 1040.2
Elongation at break	≥200%	GB/T 1040.2
Isotactic index	≥95-96%	GB/T 2412/24282
Ash content	≤0.02-0.1%	GB/T 9345.1
Number of fisheyes (0.8mm)	≤5 / 1520cm²	GB/T 6595

Core Performance Advantages

Drawing Performance. Its low melt index (2.5-3.5g/10min) combined with high elongation at break (≥200%) reduces breakage and linting during the drawing process. Its single-filament strength reaches 5-8cN/dtex, resulting in woven fabrics with superior tear resistance compared to standard PP, making it a preferred material for woven bags.
Diverse Processing Compatibility. In addition to the core drawing process, PP T30S resin is also compatible with injection molding and extrusion. Injection molding offers excellent melt stability, making it suitable for producing supermarket shopping bag handles and small containers. Extrusion allows for flat yarn and film, balancing efficiency and end-product consistency.
Outstanding Batch Stability. Leading manufacturers precisely control the polymerization process to ensure MFR fluctuations of ≤0.5g/10min between batches. Ash and color particle content are strictly controlled (premium-grade color particles ≤5 particles/kg), preventing color variations and equipment clogging in downstream processing.

Typical Applications

(1) Packaging and Textile Industry:

Woven Products: Grain/fertilizer woven bags (single bag load capacity 25-50kg, drop-tested without cracking), shopping bag handles (tensile breaking strength ≥50N).
Textile Accessories: Carpet backing, geotextiles (suitable for underground anti-seepage projects due to their high elongation and acid- and alkali-resistant properties), concrete reinforcement mesh (excellent bonding with cement, enhancing structural strength).

(2) Industrial Sector:

Ropes and Cables: Ship cables, agricultural lashing ropes (seawater corrosion resistant, breaking strength ≥150MPa).
Small Injection Molded Parts: Electrical junction box housings, toy accessories (suitable for mass production due to their low cost and ease of processing).

Purchasing and Usage Instructions

Grade Selection: Prefer premium grades (MFR 2.5-3.5g/10min, color beads ≤5/kg). Avoid using qualified grades for wire drawing applications (they are prone to linting). For outdoor use, add an additional UV stabilizer (such as carbon black masterbatch, at a dosage of 3-5%).
Storage and Shelf Life: Store in a dry and ventilated environment (humidity ≤ 70%). The shelf life is 12 months from the original packaging. After opening, use within 2 months.
Substitution and Blending Recommendations: Do not directly substitute for high melt index injection molding PP grade (such as HP500N). However, blend with the same type of T30S (from different manufacturers) (ratio ≤ 30%). Melt index consistency must be tested beforehand.