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Polyurethane (PU) chips are solid polyurethane polymer materials used as raw materials in coatings, adhesives, synthetic leather, films, and elastomer products.
Polyurethane (PU) chips provide excellent flexibility, abrasion resistance, toughness, adhesion, and long-term durability.
Polyurethane (PU) chips are suitable for industrial formulations where strong mechanical performance and reliable polymer compatibility are required.
Synonyms: Polyurethane Chips, PU Chips, Thermoplastic Polyurethane Chips, TPU Chips, Polyurethane Resin Chips, PU Resin Granules, Polyurethane Granules, TPU Granules, Polyurethane Pellets, PU Pellets, Polyurethane Polymer Chips, Synthetic Leather PU Chips, Coating Grade PU Chips, Adhesive Grade PU Chips, Film Grade PU Chips
Polyurethane (PU) chips are solid thermoplastic polyurethane materials supplied in chip, granule, or pellet form.
Polyurethane (PU) chips are produced from polyurethane polymers and are commonly used as raw materials for coating, adhesive, ink, synthetic leather, film, and elastomer applications.
Polyurethane (PU) chips provide flexibility, abrasion resistance, adhesion strength, and durability in many industrial formulations.
Polyurethane (PU) chips are a key chemical raw material commonly used in the production processes of coagulated synthetic leather.
Some advantages of Polyurethane (PU) chips in the production processes of coagulated synthetic leather include:
Durability:
Ensures longevity and resilience of the synthetic leather.
Flexibility:
Contributes to the ease of handling and adaptability of the material.
Processability:
Facilitates efficient production processes.
Water Resistance:
Increases the utility of synthetic leather in various applications.
Applications of Polyurethane (PU) Chips:
Polyurethane (PU) chips are used in synthetic leather production, textile coatings, shoe materials, adhesives, printing inks, paints, films, sealants, elastomer products, and industrial coating systems.
Polyurethane (PU) chips can be dissolved or processed with suitable solvents or resins depending on the final formulation.
Polyurethane (PU) chips are preferred where good flexibility, toughness, wear resistance, and bonding performance are required.
Features and Benefits of Polyurethane (PU) Chips:
High concentration, less amount for use, high brightness, good dispersion and diffusivity, good fastness, no contamination, no wastage, no odors, no caking, no heavy metal, good quality stability, easy to be precisely measured, low cost of tinting, convenient to store and use, and long-term storage.
Stability and Reactivity of Polyurethane (PU) Chips:
Chemical stability:
Polyurethane (PU) chips are stable under recommended storage and handling conditions.
Reactivity:
No dangerous reaction is expected under normal conditions of use.
Polyurethane (PU) chips is generally inert as a solid polymer material.
Conditions to avoid:
Avoid excessive heat, open flames, sparks, direct sunlight, moisture, dust accumulation, and contamination.
Incompatible materials:
Strong oxidizing agents, strong acids, strong bases, and reactive chemicals.
Hazardous decomposition products:
Thermal decomposition or combustion may produce carbon monoxide, carbon dioxide, nitrogen oxides, hydrogen cyanide, isocyanate vapors, smoke, and irritating or toxic fumes.
Handling and Storage of Polyurethane (PU) Chips:
Handling:
Handle in accordance with good industrial hygiene and safety practices.
Avoid contact with eyes, skin, and clothing.
Avoid breathing dust, fumes, or vapors generated during heating, melting, grinding, or processing.
Storage:
Store in a cool, dry, and well-ventilated area.
Keep containers tightly closed when not in use.
Storage conditions:
Protect from heat, direct sunlight, moisture, ignition sources, and contamination.
Store away from incompatible materials.
Packaging materials:
Keep in original sealed bags, drums, boxes, or suitable industrial packaging.
Shelf life:
Stable under recommended dry and sealed storage conditions.
First Aid Measures of Polyurethane (PU) Chips:
Inhalation:
Move person to fresh air.
If dust, fumes, or vapors from heated material cause coughing, irritation, or breathing difficulty, seek medical attention.
Skin contact:
Wash affected area with soap and plenty of water.
If molten material contacts skin, cool immediately with water and do not remove solidified polymer from the skin.
Seek medical attention for burns.
Eye contact:
Rinse cautiously with clean water for several minutes.
Remove contact lenses if present and easy to do.
Continue rinsing and seek medical attention if irritation persists.
Ingestion:
Rinse mouth with water.
Do not induce vomiting unless instructed by medical personnel.
Seek medical attention if discomfort occurs.
Most important symptoms:
May cause mechanical irritation from dust.
Heated or molten material may cause burns and thermal decomposition fumes may irritate the respiratory tract.
Firefighting Measures of Polyurethane (PU) Chips:
Suitable extinguishing media:
Use water spray, foam, dry chemical powder, or carbon dioxide.
Unsuitable extinguishing media:
Do not use a direct high-pressure water jet, as it may spread burning material.
Specific hazards:
Product may burn under fire conditions.
Combustion or thermal decomposition may produce carbon monoxide, carbon dioxide, nitrogen oxides, hydrogen cyanide, isocyanate vapors, dense smoke, and irritating or toxic fumes.
Protective equipment for firefighters:
Firefighters should wear self-contained breathing apparatus and full protective clothing.
Firefighting instructions:
Cool exposed containers with water spray.
Avoid inhalation of smoke and decomposition gases.
Prevent contaminated firefighting water from entering drains or waterways.
Accidental Release Measures of Polyurethane (PU) Chips:
Personal precautions:
Avoid contact with eyes and skin.
Avoid breathing dust.
Spilled chips may create a slipping hazard.
Use appropriate personal protective equipment.
Environmental precautions:
Prevent material from entering drains, soil, surface water, or waterways.
Methods for containment:
Stop spill if safe to do so.
Collect spilled chips mechanically and prevent spreading.
Methods for cleaning up:
Sweep, shovel, or vacuum material using dust-control methods.
Place into suitable labeled containers for reuse or disposal.
Clean the area to remove slipping hazards.
Disposal:
Dispose of collected material according to local, regional, and national regulations.
Exposure Controls / Personal Protective of Polyurethane (PU) Chips:
Engineering controls:
Use adequate ventilation during normal handling.
Provide local exhaust ventilation where dust, fumes, or vapors may be generated during melting, heating, grinding, or processing.
Respiratory protection:
Normally not required under standard handling conditions.
Use suitable respiratory protection if dust or fumes are generated or if ventilation is insufficient.
Hand protection:
Wear protective gloves suitable for chemical and mechanical handling.
Heat-resistant gloves are required when handling hot or molten material.
Eye protection:
Wear safety glasses or chemical splash goggles.
Use face protection where molten material or processing fumes may be present.
Skin and body protection:
Wear suitable protective clothing to prevent prolonged contact and protect against hot material during processing.
Hygiene measures:
Wash hands after handling and before eating, drinking, or smoking.
Remove contaminated clothing and wash before reuse.
Keep away from food, beverages, and animal feed.
Properties of Polyurethane (PU) Chips:
Appearance: Solid chips, granules, or pellets
Color: White, transparent, yellowish, or customized depending on grade
Odor: Mild characteristic odor or nearly odorless
Solubility: Insoluble in water; soluble or swellable in selected organic solvents depending on grade
