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Help CenterPolytetrafluoroethylene Mortar for Sample Pretreatment, Teflon Grinder, Corrosion-resistant Plastic Mashing Jar
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How to grind corrosive samples in the laboratory?
What if the semiconductor experiment requires high-cleanliness grinding tools?
Is there a mortar with good temperature resistance and durability against dropping?
Features of Polytetrafluoroethylene (PTFE) Mortar:
1. Strong chemical inertness: Resistant to strong corrosion, with very low metal ion precipitation, avoiding sample contamination.
2. Ultra-low surface energy (non-stickiness): Smooth surface, samples are not easy to adhere, easy to clean after grinding, without residue. Suitable for processing sticky, oily or high-purity samples.
3. Wide working temperature range: Resistant to temperatures from -200°C to +260°C, can be sterilized at high temperatures or used for low-temperature grinding.
4. Electrical insulation & low friction coefficient:
- Non-conductive, suitable for grinding electronic materials.
- Extremely low friction coefficient, making the grinding process smoother.
5. Mechanical properties:
- Soft texture (low Mohs hardness), suitable for gentle grinding to avoid excessive fragmentation of samples.
- Strong impact resistance, not easy to break.
Compared with agate or ceramic mortars, it is more resistant to impact and chemical corrosion. Widely used in laboratory sample pre-treatment, mainly including:
1. Grinding
- Fine pulverization of solid samples (such as soil, minerals, drugs, catalysts, etc.).
- The content of metal element impurities in polytetrafluoroethylene is very low, which can effectively reduce metal pollution during the grinding process in a polytetrafluoroethylene mortar, suitable for trace analysis such as ICP-MS and AA.
2. Mixing & homogenization
- Powder mixing (such as battery materials, ceramic powders).
- Used in conjunction with a PTFE pestle to ensure uniformity.
3. Low-temperature grinding
- Used with liquid nitrogen to grind heat-sensitive samples (such as biological tissues, polymer materials).
4. Treatment of corrosive samples
- Transfer and grinding of residues after hydrofluoric acid digestion.
Typical application industries and experiments of polytetrafluoroethylene mortar:
1. Environmental testing: Sample pre-treatment for heavy metal analysis in soil and sediments.
2. Pharmaceutical industry: Grinding of raw materials to avoid metal pollution affecting the efficacy of drugs.
3. Food safety: Sample preparation for the detection of food additives and pesticide residues.
4. Geology and minerals: Pollution-free crushing of rock and mineral samples.
5. Life sciences: Low-temperature grinding of plant tissues and cell samples. Electronic materials: Metal-free pollution grinding of semiconductor materials and lithium battery cathode and anode powders.
7. Research institutions: High-purity experiments (such as nuclear industry and nanomaterial research)
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