Price 80.0 आईएनआर/ Kilograms

MOQ : 1000 Kilograms

उत्पाद की विशेषताएं

पीएच लेवल
Aqueous Extract pH: When the resin is washed or extracted with distilled water (as per ISO or ASTM testing), the resulting liquid typically has a pH of 6.5 to 7.5 (nearly neutral). Chemical Stability: PVC is highly resistant to both strong acids and strong alkalis. It can withstand contact with fluids ranging from pH 2 to pH 12 without structural failure. Acidity during Processing: If the PVC is overheated, the release of HCl gas will create a highly acidic environment (pH < 2), which can corrode your metal machinery (screws and barrels).

दिखावट
After Heating: When processed at temperatures between 170 C and 210 C, the white powder melts into a clear or translucent viscous liquid (unless pigments or fillers like Calcium Carbonate are added). Impurity Count: High-purity Xinfa resin is visually inspected for "black spots" or foreign particles, with standard SG5 grades allowing a maximum of only 16 to 30 particles per 100 square centimetres of spread powder.

उपयोग
SG5 (K66 68): This is the most widely used "general-purpose" or "pipe grade" resin. It is primarily used for rigid PVC products such as: Pipes and Fittings: Including water supply, drainage, and chemical-handling pipes. Construction Profiles: Used for plastic windows, doors, panels, and decorative materials. Hard Materials: Such as rigid sheets, plates, and sandals. SG3 (K71 72): A high molecular weight grade preferred for flexible PVC products. Common uses include: Cables and Wires: Ideal for electrical insulation and wire sheaths. Soft Goods: Such as flexible hoses, artificial leather, films, and raincoats. SG7 & SG8 (K55 60): Low molecular weight grades designed for rigid injection moulding. Typical applications include: Bottles: For mineral water, cosmetics, and non-food packaging. Complex Mouldings: High-precision plastic components and rigid sheets. IndiaMART IndiaMART +9 Processing Methods Xinfa PVC resin is highly compatible with several standard industrial processing techniques: Shanghai Chemdo Trading Limited Shanghai Chemdo Trading Limited Extrusion: Used for the continuous production of high-quality pipes, profiles, and wire casings. Injection Moulding: Preferred for creating intricate parts like pipe fittings and footwear soles. Calendering: Employed to produce uniform sheets and films for packaging, flooring, and synthetic leather. Blow Moulding: Specifically used with lower K-value grades (SG7/8) to manufacture hollow containers like bottles.

सामग्रियां
Main Component: Polyvinyl Chloride (PVC). Chemical Formula: . CAS Number: 9002-86-2. Purity: Typically guaranteed at 99.6% to 99.9%. Trace Residues: Manufacturers like Chiping Xinfa PVC Co., Ltd. limit residual vinyl chloride monomer (VCM) to less than 5 ppm for industrial safety.

प्रॉपर्टीज़
Appearance: A fine, white, odorless, and tasteless powder with an amorphous structure. Density: Specific Gravity (Material Density): Approximately 1.35 to 1.46 . Apparent (Bulk) Density: Generally between 0.40 and 0.60 .

मेल्टिंग पॉइंट
Glass Transition Temperature ( ): to . This is when the hard powder starts to become "rubbery." Softening/Flow Point: to . At this stage, the resin begins to flow under pressure in an extruder. Processing Temperature: Most Xinfa grades (like SG5) are processed between and . Decomposition Point: Above .