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    Bedding FAQ

    Q1: What’s the material? Is there a better name for this product?
    A1: The name of this material is TPE(Thermoplastic Elastomer). Some customers call it: gel, silicone, pectin, washed zero-pressure pillow

    Q2: What is TPE? What are the advantages and disadvantages of TPE?
    A2: TPE, full name in English Thermoplastic Elastomer, is an elastic material of thermoplastic. This material is mainly used to make pacifiers, toys, adult products, car interior decorations, and other products.

    • Advantage: High level of safety (food grade if required), Soft and comfortable, washable, aging resistance, cooling.
    • Disadvantages: Heavy weight,heat-labile(Unrecoverable deformation easily occurs under pressure at 60 ℃)

    Q3: What are the advantages and disadvantages of your product?
    A3: Advantage: The biggest advantage is that it releases pressure on protruding parts of the body. The pressure relief grid structure can disperse the pressure of the body’s bumps (such as the shoulders, sacral, hindbrain, hips, etc.) and reduce the peak pressure. The grid structure is breathable. The high safety level of raw materials. The raw material has the characteristics of good touch, soft and comfortable, washable, anti-aging, and cool.
    Disadvantages: heavy weight, poor heat resistance

    Q4: What material name should be marked on the washing label? How is Purple labeled?
    A4: The washing mark can be marked with TPE /elastomer polymer / XX% white oil + XX% SEBS.
    American Purple company marked Hyper-elastic polymer, and the Korean customer standard is TPE (TPS-SEBS)

    Q5: Can your products are flame retardant?
    A5: At present, our products can achieve the first-class standard of flame retardant. If you want to meet higher flame retardance requirements, you can achieve flame retardant effects by using a flame retardance cover. For details, please refer to the attached “Test Report: 7-Yumeng Non-Pressure Mattress Test Report-Flame Retardant”

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      TPE Test Methods: A Full Guide

      TPE Test Methods: A Full Guide


      In the ASTM D1566 standard, thermoplastic elastomers are defined as “rubber-like materials that, unlike conventional rubber, can be processed and recycled just like thermoplastics.” Injection molding, extrusion, and blow molding can all be used to process TPEs since they do not require curing or vulcanization during processing. In this article, ueesleepy will discuss the TPE test methods.

      1. TPE test methods

      The relevant TPE test methods and purposes are as follows:

      1) TGA – thermogravimetric analysis

      Test Standard: ISO 11358-1
      Purpose: To perform thermogravimetric analysis to determine the temperature and rate of polymer decomposition and the amount of volatile, moderately volatile substances, additives, and/or fillers in the polymer structure.
      Test Equipment: Thermogravimetric Analyzer

      2) DSC – differential scanning calorimetry – determination of melting and crystallization temperatures

      Test standard: ISO 11357-1, ISO 11357-3
      Purpose: To determine the melting and crystallization temperature and enthalpy of crystalline or semi-crystalline polymers.
      Test Equipment: Differential Scanning Calorimetry

      3) DSC – differential scanning calorimetry – determination of glass transition temperature (TG)

      Test standard: ISO 11357-1, ISO 11357-2
      Purpose: To determine the glass transition temperature (Tg) of amorphous or semi-crystalline polymers.
      Test Equipment: Differential Scanning Calorimetry

      TPE Test Methods guide

      4) FTIR – Fourier transform infrared spectroscopy – qualitative analysis

      Test Standard: ASTM E 1252
      Purpose: To define the structure and functional groups of polymers.
      Test equipment: FTIR-Fourier Transform Infrared Spectrophotometer

      5) Hardness test

      Test standard: ASTM D 2240
      Purpose: The hardness of thermoplastic elastomers is measured in Shore A and Shore D units.
      Test Equipment: Shore Meter (A&D)

      6) Density measurement

      Test Standard: ASTM D 792
      Purpose: Using alcohol, calculate the specific gravity of thermoplastic elastomers (TPE) and other solid polymers.
      Test Equipment: Analytical Balance and Density Set

      7) Compression Group

      Test Standard: ASTM D 395 – Method B
      Purpose: To measure the ability of thermoplastic elastomer material to resist elasticity after applying a force to it at various times and temperatures. The remaining permanent set is measured after applying a certain pressure at a known temperature and time.
      Test Equipment: Compression Set Apparatus

      8) Atomization test

      Test Standards: ISO 6452, PV 3015 – Weight (mg), Refractive Index (%)
      Purpose: The fog test is used to determine the number of volatile structures inside thermoplastic elastomers that can migrate into the environment during use.
      Test equipment: fog tester

      9) Tensile strength and elongation test

      Test Standard: ASTM D 412
      Purpose: Under static loads, determine the elastic and plastic behavior of thermoplastic elastomers.
      Test Equipment: Extensometer

      10) Tear test

      Test standard: ASTM D 624
      Purpose: To measure the tear resistance of thermoplastic elastomers.
      Test Equipment: Extensometer

      11) Melt flow index (MFI)

      Test standard: ASTM D 1238
      Purpose: To measure the melt flow index of molten thermoplastic elastomers.
      Test equipment: MFI equipment

      12) Chemical aging test

      Test Standard: ASTM D 471
      Purpose: To measure the resistance of thermoplastic elastomers to certain chemicals (liquids) and their effects.
      Test equipment: chemical aging test chamber, air aging oven

      13) Izod and Charpy impact tests

      Test standard: ASTM D 256
      Purpose: To measure the impact resistance of materials. Calculate the kinetic energy required to crack and break the material.
      Test device: Impact test device

      14) Color measurement (laboratory)

      Test standard: None
      Purpose: A thermoplastic elastomer’s lightness value, red-green value-a value, and yellow-blue value-b value are determined.
      Test Equipment: Colorimeter

      TPE Test Methods guide

      15) Gloss measurement

      Test standard: ASTM D 523
      Purpose: To measure the glossiness of thermoplastic elastomer surface.
      Test Equipment: Gloss Meter

      16) pH measurement

      Test Standard: None
      Purpose: To measure the effect of changing the pH of liquids in contact with thermoplastic elastomers.
      Test equipment: pH meter

      17) Kinematic viscosity test

      Test Standard: None
      Purpose: To measure the viscosity of liquids or dissolved solids.
      Test Equipment: Kinematic Viscometer

      18) Mooney viscosity test

      Test standard: ASTM D 1646
      Purpose: To measure the Mooney viscosity value of rubber.
      Test Equipment: Mooney Viscometer

      19) Humidity measurement

      Test Standard: None
      Purpose: To quantitatively measure the moisture content of thermoplastic elastomers by means of weight loss.
      Test Equipment: Moisture Analyzer

      20) Horizontal flammability test

      Test standard: UL 94-HB
      Purpose: The flammability of thermoplastic elastomers is determined horizontally.
      Test device: Horizontal flame chamber

      21) Soxhlet extraction

      Test Standard: None
      Purpose: To extract the fluid in the thermoplastic elastomer and quantitatively measure the liquid material dissolved in the solvent in the solid material.
      Test Device: Soxhlet Extraction Mechanism

      22) Polymer gel content test

      Test Standard: None
      Purpose: To calculate the percent crosslinking of thermoplastic vulcanizates.
      Test Device: Soxhlet Extraction Mechanism

      TPE Test Methods guide

      23) Smell test

      Test standard: VDA 270
      Purpose: Thermoplastic elastomers are classified according to their odor level.
      Test equipment: oven, beaker

      24) UV aging test

      Test standard: ASTM G 154
      Purpose: To observe the changes of thermoplastic elastomers under ultraviolet light by means of accelerated aging.
      Test device: Accelerated UV test device

      25) Scratch and wear test

      Test Criteria: None
      Purpose: The edges of a thermoplastic elastomer determine its scratch and abrasion properties.
      Test device: Abrasion test device

      26) Weather instrument test

      Test standards: ASTM D 2565, ASTM D 4459, ISO4582
      Purpose: To simulate the long-term exposure of thermoplastic elastomers to environmental conditions such as temperature, light or humidity. Analyze color changes and/or other surface changes when cracked/scratched.
      Test equipment: Weatherproof cabinet

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