English 
The core advantages of industrial-grade silicone straws lie in the ultimate material performance and scene adaptability. They are specially designed for high-precision and harsh environments such as industry and laboratories. Its characteristics are mainly reflected in the following four aspects:
Material properties: extreme resistance and high stability
1. Extremely resistant to temperature and corrosion
Platinum vulcanised medical-grade silicone or high-purity industrial silicone is used, and the temperature-resistant range generally covers **-60℃~250℃** (some special models can reach 300℃), which can withstand steam sterilisation (121℃ high-pressure sterilisation), high-temperature drying and other operations; at the same time, it has excellent chemical resistance and can resist strong acids ( The corrosion of dilute sulphuric acid, strong alkali (such as dilute sodium hydroxide) and organic solvents (such as ethanol and acetone) will not swell, age or release harmful substances due to contact with chemicals.
2. Physical properties are stable.
The tensile strength and tear strength are much higher than those of ordinary silicone straws, which are not easy to break and deform; and the characteristics of "low precipitation" are prominent - the extractable content is extremely low, which meets the strict standards of USP Class VI (American Pharmacopoeia), FDA 21 CFR, etc., to avoid polluting the transported fluids (such as pharmaceutical raw materials, Experimental reagents).
Functional design: accurately adapt to industrial needs
1. High-precision fluid control
The pipe diameter specifications are standardised (such as 0.5mm~20mm and other precise sizes), and the inner wall is smooth and burr-free to ensure that the flow rate is stable and residue-free during fluid transportation. It is suitable for laboratory pipette, industrial production line quantitative feeding and other scenarios; some models have scale marks to support visualisation and accurate control.
2. Customised structural design
Filters, connecters, valves and other components can be integrated according to demand, such as:
The laboratory model has a built-in 0.22μm sterile filter membrane to prevent impurity contamination reagents;
The industrial conveying model is equipped with quick connecters, which can be directly connected to the equipment pipeline to realise sealed connection, leakage prevention and overflow prevention.
Scene adaptation: covering high-demand industrial scenarios
1. For laboratory use
It is used for biological experiments (such as cell culture transfer), chemical analysis (such as reagent sampling), etc. Because it is "non-toxic and non-sensitising", it can directly contact sensitive samples; some products support repeated sterilisation to meet the requirements of laboratory sterile operation.
2. Industrial production assistance
It is used in electronics, medicine, food processing and other industries, such as:
The electronics factory transports photoresist, conductive glue and other precision fluids;
Pharmaceutical factories transfer liquids and intermediates to avoid the contamination of drugs by metal pipes.
Durability and environmental protection: reducing long-term costs
• Strong reusability: the material is wear-resistant and anti-ageing, and the service life is dozens of times that of ordinary plastic straws, reducing the cost of frequent replacement;
• Outstanding environmental protection: it can be recycled and reused. After disposal, it will not cause "white pollution" like plastic straws, which meets the environmental protection compliance requirements of the industrial field.
FAQ:
Frequently asked questions and answers about industrial-grade silicone straws
1. The corrosion resistance of the straw is insufficient. What should I do if it swells and cracks after contact with chemicals?
First of all, confirm whether the straw material matches the chemicals used (such as strong acid, strong alkali, organic solvent). Industrial-grade silicone needs to clarify the chemical resistance parameters (such as hydrochloric acid resistance concentration, ethanol temperature resistance, etc.). If the material does not match, it needs to be replaced with a special corrosion-resistant model (such as platinum vulcanised silicone); if it is ageing due to too long use, it should be replaced with a new product in time to avoid fluid leakage caused by material failure.
2. How to deal with the deformation and softening of the straw in a high-temperature environment, which affects the accuracy of fluid conveying?
Check the temperature resistance level of the straw (industrial grade is common -60℃~200℃/250℃). If the actual use temperature exceeds the labelling range, it is necessary to replace the high-temperature resistance model (such as special silicone with high temperature resistance of 250℃ or more). At the same time, avoid the straw from being in an extreme high temperature environment for a long time. It can be used with a heat-insulating sleeve to reduce the impact of temperature on the material.
3. There are residual impurities on the inner wall of the straw, which still affect the purity of the fluid after cleaning. How to solve it?
Industrial-grade straws need to use special cleaners (such as non-residual industrial cleaning agents) and cooperate with high-pressure water guns or pipe cleaning brushes to flush the inner wall; if used in high-precision scenes (such as pharmaceuticals and electronics), ultrasonic cleaning + high-temperature sterilisation (121℃ steam sterilisation, need to confirm whether the straw is supported) can be used. It should be cleaned immediately after daily use to avoid impurities curing and adhesion.
4. If the interface between the straw and the equipment is not tightly sealed, how to deal with leakage?
First, clean up the foreign objects (such as dust and ageing sealant) at the interface, and check whether the straw interface is worn or deformed. If the sealing surface is damaged, the special connecter with sealing ring can be replaced, or the raw material tape (suitable for non-high-precision scenarios) can be wound to enhance the sealing. When installing, make sure that the interface is aligned and tightened according to the prescribed torque to avoid excessive squeezing and cracking of the interface.
5. What is the reason for the suction and bursting of the straw in negative pressure/high pressure conveying?
It is necessary to confirm the pressure-bearing range of the straw (such as negative pressure ≤-0.08MPa, positive pressure ≤0.5MPa). If the rated pressure is exceeded, the high-pressure model should be replaced (such as reinforced sandwich silicone straws). At the same time, check whether the fluid delivery speed is too fast. By adjusting the valve, the flow rate can be reduced and the instantaneous pressure shock can be reduced.
6. Is it normal for the surface to harden and decrease in elasticity after using the straw for a period of time?
Long-term exposure to ozone, ultraviolet or oily fluids may cause silicone ageing, which is a normal wear and tear. If the ageing rate is too fast, it is necessary to check the use environment (such as whether it is close to the ozone generator and direct sunlight) and replace the anti-ageing industrial silicone straw; avoid contact with oil and strong oxidants during daily storage, and place it in a cool and dry place.
7. How to judge whether industrial-grade silicone straws meet the standards of use?
Check whether the product has relevant certifications (such as USP Class VI, FDA, ROHS), check the key parameters in the material report (such as extractable content, temperature resistance and decay resistance; at the same time, check whether there are bubbles, impurities, rough edges in the appearance, and whether it is uniform and without fracture during stretching, so as to ensure that there is no impact. Defects in fluid conveying.
8. Straws become brittle and easy to break in a low-temperature environment. How to deal with it?
Replace models with low gentleness and better toughness (such as silicone straws with low temperature resistance below -60℃) to avoid frequent bending at low temperatures; if it needs to be used in an extremely cold environment, the straw can be preheated (such as soaked in warm water before installation) to reduce the impact of low temperature on material toughness.
