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  1. deenor

    Halogen in MPPO & PAS

    Hi, I've recently sent MPPO & PAS (both glass filled) for lab test to determine the level of flourine & chlorine. To my surprise the level of both elements were very high. MPPO - flourine : >2000 ppm, chlorine : nd PAS - flourine : nd, chlorine : >2000 ppm Upon checking with the material...
  2. deenor

    Undertanding 4.4.3. Communication in ISO14K

    Hi, I need help here. ISO14001 Clause 4.4.3 Communication sub para "The organization shall decide whether to communicate externally about its significant environmental aspects, and shall document its decision. If the decision is to communicate, the organization shall establish and...
  3. deenor

    Temperature Indicator Ink

    Thanks for the input. The requirements are able withstand temperature up to 200 degC & won't peel easily especially at post-bake. The substrates are from engineering plastic with glass filled. I want to apply it using the silk screen method. regards
  4. deenor

    Temperature Indicator Ink

    Hi, Does anyone know if there is a temperature-indicator ink available? It's similar to the time-indicator ink. Our product will go through a baking process at our customer's site. The use of temperature indicator will help them on their anti-recycling program. Thanks Deen
  5. deenor

    Turbulence flow in mold cooling channel

    Does anyone know about turbulence flow inducer placed inside the cooling channel of a mold? The purpose is to produce turbulence flow that can help to improve heat exchange. I read it once in a magazine but can't remember the details. Regards Deen
  6. deenor

    Solution for blistering PPO

    Carbon black is added to achieve conductivity. The percentage is already at the threshold value where anything lower will make it fail to meet the requirement. The alternatives are carbon fiber, stainless steel fiber or other IDP additive. The issues with these alternatives are higher cost &...
  7. deenor

    Solution for blistering PPO

    Hi, The product is casing/small container & the process is injection molding. PPO is used due to its ability to withstand moderate baking temperature. Carbon black is used because it is very cost effective. In another word, they're all given factors. Can the surface finish of the insert affect...
  8. deenor

    Solution for blistering PPO

    Hi, I'm producing a casing from a glass filled mPPO material. One of the requirement is to have surface conductivity. In order to fulfill this, we use carbon black as the conductive additive. The problem is I found the surface of the molded part tends to form blister or loose debris. The...
  9. deenor

    Process Engineering Manager

    Hi, Can anyone describe what are the typical job scopes for a Process Engineering Manager in an injection molding factory? thanks deen
  10. deenor

    Alternative to carbon fiber additive

    Yes, but not so helpful.
  11. deenor

    Alternative to carbon fiber additive

    Hi, Does anyone have any information on carbon coated glass fiber as alternative to carbon fiber? I'm looking for source, price, properties etc. Does it really cheaper than the carbon fiber?? Currently I'm using thermoplastic polymer with carbon fiber as the conductive additive. Thanks deen
  12. deenor

    ICP-MS and ICP-AAS

    Hi there, What are the differences between Inductively Coupled Plasma-Mass Spectrometer(ICP-MS)and Inductively Coupled Plasma-Atomic Absorption Spectrometer(ICP-AAS)? Thanks deen
  13. deenor

    mPPO vs mPPE

    hi there, Does anyone knows if we can blend mPPO and mPPE together and shot using injection molding machine? I'm using carbon-fiber filled mPPO to obtain certain strength and ESD value. I've experience mixing carbon-fiber filled mPPO and carbon-powder filled mPPO and and end up at no ESD...
  14. deenor

    Carbon Fiber Filled Polymer vs Carbon Filled Polymer

    Does any of you guys out there have any experience with carbon and fiber filled polymer (eg. mppo) or carbon filled polymer (PPE)? I am trying to figure out what are the differences between both in molecular structure/interaction and physical behavior. I having difficulty to control the...

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