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TROGAMID® CX7323 NC

Chemical Family
Polyamides

TROGAMID® CX7323 NC is a specialized polyamide designed for injection molding applications. This microcrystalline transparent polyamide exhibits exceptional transparency to the human eye due to its extremely small crystallite size, which prevents the scattering of visible light. The material's crystalline structure also imparts outstanding crack resistance, ensuring durability and reliability in various manufacturing processes. TROGAMID® CX7323 is conveniently supplied as spherical pellets, packaged in polyethylene. This product allows for a certain degree of flexibility in molds and processing, enabling adjustments to accommodate specific cavity requirements or optimize the overall manufacturing process. With its unique properties, TROGAMID® CX7323 offers a reliable solution for the production of transparent parts through injection molding.

Properties

Physical Form
  • Pellets
  • Solid

Product families

Plastics — Engineering & Specialty Polymers
  • Polyamides

Other characteristics

Brand
TROGAMID
Polymer Name
Polyamide 12 (PA 12)
Flexural Modulus
1,701.83 MPa
Additives Included
  • Light Stabilizer, UV Stabilizer
  • Light Stabilizer
  • UV Stabilizer
Color (Properties)
Natural
Materials Features

Abrasion Resistant, Crack Resistant, Crystalline, Drinking Water Contact Acceptable, Electrically Insulating, Excellent Transparency Properties, Fatigue Resistant, Food Contact Acceptable, Fuel Resistant, General Purpose, Good Environmental Stress Crack Resistance (ESCR), Good Light Stability, Good Optical Properties, Good Thermal Stability, Good Weather Stability, High Gloss, High Optical Transparency, Hot Water Resistant, Hydrolysis Resistant, Light Stabilized, Medium Viscosity, Oil Resistant, UV Resistant, UV Stabilized, Unreinforced, Wear Resistant

Processing Methods

Extrusion, Film Extrusion, Injection Molding, Profile Extrusion, Sheet Extrusion

Notes

N = No break C = Complete break Pigmentation can affect values.

Markets
  • Automotive & Transportation
  • Consumer Goods
  • Industrial
Flame Rating
  • IEC 60695-11-10 HB
  • IEC 60695-11-20 HB
Technology
Plastics
Labeling Claims
Food Contact Acceptable
Quality Standards
DVGW W270
Color
Natural
Material Features

Abrasion Resistant; Crack Resistant; Crystalline; Drinking Water Contact Acceptable; Electrically Insulating; Excellent Transparency Properties; Fatigue Resistant; Food Contact Acceptable; Fuel Resistant; General Purpose; Good Environmental Stress Crack Resistance (ESCR); Good Light Stability; Good Optical Properties; Good Thermal Stability; Good Weather Stability; High Gloss; High Optical Transparency; Hot Water Resistant; Hydrolysis Resistant; Light Stabilized; Medium Viscosity; Oil Resistant; UV Resistant; UV Stabilized; Unreinforced; Wear Resistant

Applications
  • Filigree and fatigue- resistant frames
  • Impact demanding frames of sport glasses
Packaging Information

TROGAMID® CX7323 are supplied as spherical pellets in moisture-proof packaging ready for processing.

Certifications and Compliance
  • KTW - W270 Certified (DE)
  • KTW Certified (DE)
  • USP Class VI
Plastics and Elastomers End Uses
  • Aerospace Applications
  • Automotive Applications
  • Electrical/Electronic Applications
  • Encapsulant
  • Eyeglass Frames
  • Eyeglasses
  • Industrial Applications
  • Sporting Goods

Technical data

Table 1 of 8

18 rows
CharacteristicValueUnitMethod
Tensile Modulus (dry)203000psiISO 527
Tensile Strength (dry)8700psiISO 527
Yield Stress (dry)8700psiISO 527
Yield Strain (dry)8%ISO 527
Stress at 50% Strain (dry)5800psiISO 527
Stress at Break (dry)8700psiISO 527
Nominal Strain at Break (ɛtb, dry)160%ISO 527
Tensile Creep Modulus (0.5% Strain, 1h, cond.)189000psiISO 899-1
Tensile Creep Modulus (0.5% Strain, 1000h, cond.)102000psiISO 899-1
Charpy Notched Impact Strength (+23°C , dry)5.23ftlb/in²ISO 179/1eA
Charpy Notched Impact Strength (0°C, dry)5.71ftlb/in²ISO 179/1eA
Charpy Notched Impact Strength (-30°C, dry)5.23ftlb/in²ISO 179/1eA

Table 2 of 8

6 rows
CharacteristicValueUnitMethod
Density (dry)1.02g/cm³ISO 1183
Water Absorption (dry)3.5%Sim. to ISO 62
Humidity Absorption (dry)1.5%Sim. to ISO 62
Shore D Hardness (dry)81 (3 sec)—ISO 7619-1
Ball Indentation Hardness (dry)16000psiISO 2039-1
Density1.02g/cm³ASTM D 792

Table 3 of 8

9 rows
CharacteristicValueUnitMethod
Melting Temperature (dry)482°FISO 11357-1/-3
Glass Transition Temperature (dry)284°FISO 11357-1/-2
Temperature of Deflection Under Load A (1.80 Mpa, dry)226°FISO 75-1/-2
Temperature of Deflection Under Load B (0.45 Mpa, dry)252°FISO 75-1/-2
Vicat Softening Temperature A (10 N, 50 K/h, dry)279°FISO 306
Vicat Softening Temperature B (50 N, 50 K/h, dry)266°FISO 306
Coefficient of Linear Thermal Expansion (23°C to 55 °C, Parallel, dry)5.0e-05in/in/°FISO 11359-1/-2
Coefficient of Linear Thermal Expansion (23°C to 55 °C, Normal, dry)5.0e-05in/in/°FISO 11359-1/-2
Melting Temperature482°FASTM D 3418

Table 4 of 8

2 rows
CharacteristicValueUnitMethod
Surface Resistance (RSA, dry)10000000000000OhmIEC 62631-3-2
Surface Resistivity (σA, dry)100000000000000Ohm/sqIEC 62631-3-2

Table 5 of 8

9 rows
CharacteristicValueUnit
Density of Melt56.2lb/ft³
Thermal Conductivity of Melt1.73BTU in/(hr ft² °F)
Specific Heat Capacity Melt0.936BTU/(Ib-F)
Effextive Thermal Diffusivity1.12e-07m/s
Ejection Temperature212°F
Minimum Mold Temperature140°F
Maximum Mold Temperature212°F
Minimum Melt Temperature536°F
Maximum Melt Temperature572°F

Table 6 of 8

4 rows
CharacteristicValueUnitMethod
Injection Molding - Melt Temperature536°FISO 294
Injection Molding - Mold Temperature176°FISO 294
Injection Molding - Injection Velocity7.87in/sISO 294
Injection Molding - Pressure at Hold10200psiISO 294

Table 7 of 8

5 rows
CharacteristicValueUnitMethod
Melt Volume Flow Rate (dry, at 536°F, 4.76lb)8.2cm³/10minISO 1133
Molding Shrinkage (Parallel, dry)0.7%ISO 294-4, 2577
Molding Shrinkage (Normal, dry)0.8%ISO 294-4, 2577
Mold Temperature (dry)176°F—
Melt Temperature (dry)536°F—

Table 8 of 8

14 rows
CharacteristicValueUnitMethod
Burning Behavior (at 1.5 mm Nominal Thickness) (dry)HBclassIEC 60695-11-10
Burning Behavior (at Thickness 0.1181 in.) (dry)HBclassIEC 60695-11-10
Burning Behavior (at Thickness 0.03151 in.) (dry)HBclassIEC 60695-11-10
Burning Behavior (at Thickness 0.0157 in.) (dry)HBclassIEC 60695-11-10
Glow Wire Flammability Index (at Thickness 0.0394 in.)1760°FIEC 60695-2-12
Glow Wire Ignition Temperature (at Thickness 0.0394 in.)1470°FIEC 60695-2-13
Volume Resistivity (pV, dry)min. 1E13Ohm*mIEC 62631-3-1
Surface Resistivity (σE, cond.)1613OhmIEC 62631-3-2
Relative Permittivity (100Hz, dry)3.6—IEC 62631-2-1
Relative Permittivity (1MHz, dry)3.2—IEC 62631-2-1
Dissipation Factor (100Hz, dry)115E-4IEC 62631-2-1
Dissipation Factor (1Mhz, dry)325E-4IEC 62631-2-1

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