Knowde Enhanced TDS
Identification & Functionality
- Plastics & Elastomers Functions
- Technologies
Features & Benefits
- Materials Features
- Typical Properties of the Coating
- long-term antistatic treatment for several years with reduction of the surface resistance as far as 107 Ω at standard climatic conditions
- antistatic effect also at very low humidity (< 30%)
- strong adhesion of the antistatic agent to the plastic surface resulting in high stability against physical effects such as friction etc.
- the coating is temperature resistant resulting in unproblematic processing without impairing the antistatic finishing
- the slip properties of the plastic surfaces are improved considerably by the product
- MECOSTAT-3/535 replaces antistatic additives
- no accumulation during recycling
- MECOSTAT-3/535 is highly productive and therefore keeps down costs of antistatic finishing
- usable in the packing industry for foodstuffs according to EC-Directives
- unproblematic recycling of the coated plastics
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Areas of Application
- high-quality antistatic equipment of technical products and electronic items as for example
- EPS/EPP-items for the taking of technical products
- foamed items for food packaging
- EPS-packing chips
- EPS/EPP trays
- foamed drinking cups
- Processing Directions
The following different processes are basically available for the addition of the antistatic additive:
- Addition of the antistatic agents during pre-expansion in a continuous process via the steam line admission point or Mixing the plastic and the antistatic agent prior to the pre-expansion process in a batch mixer (e.g. at the same time as the special dye is added for dyeing the plastic)
- MECOSTAT-3/535 is supplied as a ready for use solution, if required, the product can be diluted with demineralised water
- machine parts which come into contact with MECOSTAT-3/535 should be made of corrosion proof materials but not from copper, aluminum and their alloys
- a combination of MECOSTAT-3/535 with antistatic additives is not recommended because of possible reactions
- due to the large number of applications and processing procedures we would like to point out that corresponding tests have to be performed by the customer to make sure that there will be no incompatibility with the raw materials, additives and the processing procedures
- Process
Addition during continuous pre-expansion
The antistatic agent is added into the steam line admission point during pre-expansion.
The antistatic agent can be dosed via a dosing pump or by excess liquid pressure,
controlled by a needle valve, depending on the particular design of the system.
The added quantity of antistatic agent should be in the range 1 - 4 (weight-) %, referred to the throughput quantity of EPS/EPP, depending on the intended application.Schematic sketch of application
Addition prior to pre-expansion
This method is suitable both when using continuous pre-expanders and when using
intermittent pre-expansion of individual batches. The antistatic agent is added to the EPS raw material (not pre-expanded) in a batch mixer and is then mixed for a brief period. If dyes are to be added, these must be added first and fixed. After fixing, the antistatic agent is added, whereby the dosage should be in the range of 1 to 3 (weight-) % (depending on the intended application and material type).
Properties
- Physical Form
Safety & Health
- Safety
MECOSTAT-3/535 as well as the raw materials contained in it comply with the appropriate ECDirectives on the antistatic finishing of plastics in food packaging.
MECOSTAT-3/535 is environment-friendly and easily biodegradable.
Packaging & Availability
- Packaging Type
- Form of delivery and containers for antistatic agents used for EPS
Form of delivery: Ready-for-use, liquid solution
Container sizes: 20 ltr canister, 640 and 1000 ltr IBC container