PRM-Тайвань

ISOTHANE 8800 Серии клея

классификация: Пластмассовое сырье
Страна: Тайвань
Телефон: 886-4-23587676
факс: 886-4-23587575
Контактное лицо: Duke Shih
Запрос сейчас

ISOTHANE TPU resins are high quality environmental friendly materials and available in a wide range of hardnesses in polyester and polyether-based formulations. ISOTHANE exhibit the valuable characteristics of flexible rubber and rigid plastics and their wide spectrum of mechanical properties meet customers’ demands in extensive applications.


ISOTHANE TPU resins portfolio includes high transparency grades, hot melt grades, breathable film grades, anti-static grades, engineering grade, low compression grades, bio-renewable and flame retardant grades.


 ● High Tensile Strength

 ● High Mechanical Property

 ● High Fuel & Oil Resistance

 ● Good Chemical Resistance

 ● Low Temperature Resistance

 ● Excellent Hydrolytic Stability

 ● Bio-compatibility

 ●  Resistance To Micro-organism


ISOTHANE 8800 Series Adhesive Grade

Item Name ISOTHANE 8800 Series Adhesive Grade
Characteristics ISOTHANE®8800 series products have good initial adhesive strength, fast crystallization, good solubility, good washing durability etc. Viscosity ranges from 150~2800cps (15% MEK Solution), and viscosity could be customized for different viscosity. They exhibit good adhesive with TPU, PVC, polyester fabric, leather and other materials.
Suggested Applications Footwear Adhesive, Textiles, and Furniture Applications.
Item Name Adhesive Grade
Description ISOTHANE 8800 series products have good initial adhesive strength, fast crystallization, good solubility, good washing durability and freezing resistance etc.. Viscosity ranges from 150~2800cps (15% MEK Solution), and viscosity could be customized for different viscosity. They exhibit good adhesive with TPU, PVC, polyester fabric, leather and other materials.
Supply and Storage ISOTHANE TPU resins are supplied in pellet form packed in 25kg moisture proof bags. All TPU resins have been dried before packing. ISOTHANE TPU resins should be stored in cool and dry environment in their original containers until be used. Storage temperature should not exceed 30°C. If only a portion of TPU resins was used from a bag, the remainder of TPU resins should be tightly closed.
Drying
TPU resins are hygroscopic and pre-drying of TPU resins is always a necessary step before processing. Depend on the climate, the granule exposed to the atmosphere will absorb moisture very quickly. The moisture might bring about partial degradation of polymers and the formation of bubbles or streaks in the molded and extruded parts. In order to ensure the efficient and successful processing into quality parts, the moisture content in TPU resins is recommended less than 0.02%.

A desiccant-bed-type hopper dryer is recommended for drying ISOTHANE TPU. The dew point of the inlet air should be in the range of -30 to -40°C. About the recommended drying conditions, please view ISOTHANE individual data sheets.
Processing - Extrusion
Barrel and Motor
  • High torque drive capacity at low speed
  • Vented or standard barrels acceptable
Screw
  • Compression ratios between 2:1 and 3:1
  • Minimum L/D of 30/1
Feed Throat
  • Vertical and tangential
  • Water cooling is recommended
Screen Pack
  • Streamlined breaker plates with screen packing is recommended
  • Typical 40/80/80/40 mesh screens
Die
  • Streamline with good temperature control
  • Land Length is generally 10 to 15 times the part thickness
  • Coat-hanger manifold-type dies are recommended for extruding film and sheet
  • Crosshead dies are recommended for wire, cable and hose jacketing
  • Side-fed rotating dies are recommended for blown film
About the recommended extrusion temperatures, please view ISOTHANE individual data sheets.
Processing - Injection Molding
Barrel and Motor
  • High torque drive capacity at low speed
  • Vented or standard barrels acceptable
Screw
  • Compression ratios between 2:1 and 3:1
  • Metering screw with gradual transition zone
Injection Pressure
  • Typical 6,000 to 15,000 psi
  • Hold pressure 60 – 70% of forward time
Injection speed
  • Slow to moderate
  • Depends on gating, wall section and flow length
About the recommended injection molding temperatures, please view ISOTHANE individual data sheets.
Coloring
Generally, ISOTHANE TPU resins are supplied in their natural color. They can be colored by blending with pigment or pigment master batch. Using master batch based on TPU is recommended. Other master batch based on polyethylene or polystyrene is suitable to a limited extent. All colorants employed in TPU resins must be pre-dried before processing.

The normal addition of pigment or pigment master batch is 0.2%-0.5% or 1-3%.
Additives Various additives can be used to enhanced the properties of ISOTHANE TPU resins, e.g. anti-blocking agents, antioxidant, UV stabilizers or release agents. Most additives supplied as master batches are available. But not all additives are compatible with ISOTHANE TPU resins. It is recommended to inquire of your suppliers or our technical service before compounding.
Recycling
For ISOTHANE TPU resins, up to 20% of regrind may be recycled with virgin material depending on finished parts requirements. The regrind material has to be kept free of contamination, diced and dried before re-using. The material which has been contaminated, discolored or degraded is not suitable for recycling. TPU resins may decrease desired properties, e.g. hardness and mechanical properties, due to improperly mixing with regrind.
Regulatory or testing organizations (e.g., UL) may have specific requirements limiting the allowance amount of regrind. Certain quality requirements laid down in specifications may exclude the use of regrind material.
Healthy and Safety Information Before working with these products, it is essential that all operators are aware of the healthy and safety precautions. ISOTHANE TPU resins can be processed or machined over a wide range of temperature. There can be some smoke formation during processing. The smoke that contains some decomposition substances of TPU or additives may cause irritation to human body. Generally, the temperature does not exceed 240°C that can reduce decomposition formation. An effective extraction system, especially in the melt outlet zone, is necessary. The detail information concerning healthy and safety can be available in safety data sheets (SDS) or contact our technical service.
Disposal ISOTHANE TPU resins present no hazard to the environment or water. They can be dumped on municipal landfill or in a waste incineration plant. The official regulations on waste disposal should be observed.
Items Units ASTM 8888-03U 8888-F1 8888-F3 8895 8890
Specific Gravity   D-792 1.2 1.2 1.2 1.2 1.2
Hardness Shore A D-2240 93 A 93 A 93 A 93 A 93 A
Crystallization rate - - High High High High High
Melting temperature °C DSC 45~60 45~60 45~60 45~60 40~60
These property values under specific test conditions as defined in the table above are for reference only.