Injection-molding processability

Pellet drying and water-absorption properties

  • Figure 6-1: Glass-fiber reinforced nylon pellets water absorption speed in airFigure 6-1: Glass-fiber reinforced nylon pellets water absorption speed in air
  • Figure 6-2: CM3001-N water-absorption speed in airFigure 6-2: CM3001-N water-absorption speed in air
  • Figure 6-3: Coloration change in glass fiber reinforced nylon 66 pellets as a result of hot-air blow-dryingFigure 6-3: Coloration change in glass fiber reinforced nylon 66 pellets as a result of hot-air blow-drying
  • Figure 6-4: Drying curve of glass-fiber reinforced nylon 66 pellets with water uptakeFigure 6-4: Drying curve of glass-fiber reinforced nylon 66 pellets with water uptake
  • Figure 6-5: Properties of glass-fiber reinforced nylon 66 as a function of pellet water uptake

    Figure 6-5: Properties of glass-fiber reinforced nylon 66 as a function of pellet water uptake

Flowability properties

  • Figure 6-6: Change in melt viscosity as a function of shear velocity Figure 6-6: Change in melt viscosity as a function of shear velocity
  • Figure 6-7: Change in spiral flow length as a function of injection pressure Figure 6-7: Change in spiral flow length as a function of injection pressure
  • Figure 6-8: Change in spiral flow length as a function of product thickness

    Figure 6-8: Change in spiral flow length as a function of product thickness

Dimensional properties

Ⅰ. Mold shrinkage

  • Figure 6-9: Change in mold shrinkage as a function of injection pressure Figure 6-9: Change in mold shrinkage as a function of injection pressure
  • Figure 6-10: Change in mold shrinkage as a function of injection pressure Figure 6-10: Change in mold shrinkage as a function of injection pressure

Ⅱ. Heating shrinkage

  • Figure 6-11: Dimensional change resulting from heat treatment Figure 6-11: Dimensional change resulting from heat treatment
  • Figure 6-12: Dimensional change resulting from heat treatment Figure 6-12: Dimensional change resulting from heat treatment

Ⅲ. Dimensional change resulting from water absorption

  • Figure 6-13: Dimensional change over time when left indoors (Part 1) Figure 6-13: Dimensional change over time when left indoors (Part 1)
  • Figure 6-14: Dimensional change over time when left indoors (Part 2) Figure 6-14: Dimensional change over time when left indoors (Part 2)
  • Figure 6-15: Relationship between water absorption and dimensional change (Part 1) Figure 6-15: Relationship between water absorption and dimensional change (Part 1)
  • Figure 6-16: Relationship between water absorption and dimensional change (Part 2) Figure 6-16: Relationship between water absorption and dimensional change (Part 2)

Water-absorption treatment conditions

  • Figure 6-17: Time required to regulate moisture level

    Figure 6-17: Time required to regulate moisture level

  • Figure 6-18: Time required to regulate moisture level

    Figure 6-18: Time required to regulate moisture level

  • Figure 6-19: Time required to regulate moisture level

    Figure 6-19: Time required to regulate moisture level

Properties of recycled products

Table 6-1: Properties of recycled products (100% recycled content)

Numbers in parentheses represent retention (%)
Material Category Unit Number of times recycled with 100% content
0 1 3 5
CM3001G-30 Tensile strength MPa 184 155
(84)
140
(76)
109
(59)
Breaking elongation % 5.3 4.8 4.3 4.1
Izod impact strength J/m 85 70
(82)
59
(69)
48
(56)

※ 1/2"thickness

Table 6-2: Properties of recycled molded products
Material Category Unit Recycled content (%)
0 10 15
CM3001G-30 Tensile strength MPa 181 181 179
Breaking elongation % 4.9 4.8 4.8
Flexural strength MPa 271 265 262
Deflection - 5.1 4.9 4.8
Elasticity modulus GPa 9.5 9.3 9.2
Izod impact strength J/m 113 109 99

※ 1/8"thickness