Surfactants can also be used to clean plastic surfaces

2022-04-20 16:47:47

Surfactants can also be used in the cleaning of plastic surfaces. Liu Yali] studied cleaning agents for plastic surfaces. The cleaning agent is composed of Las (sodium dodecylbenzene sulfonate), TX (octylphenol polyoxyethylene ether) and Ta (polyether non-ionic surfactant). It has good cleaning effect on ABS, PVC, PP and phenolic plastics.

The plastic shed film made by adding dripping agent can reduce or eliminate the fog droplets on the film and increase the sunlight penetration in the shed, so as to improve the shed temperature, enhance photosynthesis and promote crop growth. When used for the packaging film of fresh and living goods, it can eliminate or reduce the fog beads of the packaging film, improve the visibility in the bag, reduce the mildew of goods, and improve the value of goods. Beijing Chemical Industry Research Institute has developed FY polyethylene dripping agent (composed of a variety of non-ionic surfactants), which is mainly used for PVC greenhouse film and PVC packaging film. In addition, FY series products can also be used for EVA (ethylene vinyl acetate copolyester) agricultural film.

CaCO3 modified by surfactant can be filled in plastic and greatly improve its processability and mechanical properties. Ji Hongnian synthesized alkyl phosphate esters with different carbon chain lengths and used them for the modification of light calcium carbonate. When the dosage is 2.5% (modifier / calcium carbonate mass ratio), the surface properties and filling properties of plastic filler CaCO3 can be significantly improved. The processability and mechanical properties of soft PVC system can be significantly improved, and the processability of single ester modification is better than that of double ester with the same carbon chain length.

Polyurethane (PU) industry has developed rapidly in recent years, because PU materials have excellent properties. Their soft foam plastics are characterized by light weight, soft, insulation, breathability, non-toxic, resilience, humidity resistance, aging resistance, organic solvents, sound insulation and thermal insulation. Therefore, they are widely used in transportation, construction, decoration, industrial equipment, pipeline insulation, light industry, civil furniture and other fields. Surfactant (mainly silicone surfactant) is an essential component of PU foam process.

Jin Xin Wen has synthesized the stabilizer H-420 (silicone surfactant) for PU foam, and its main performance is equivalent to that of imported products. Yan Min synthesized silicone surfactant (low hydrogen polysiloxane and allyl terminated polyether as intermediates) and applied it to the production of PU Rigid Foam with good foam uniformity. Niax Silicone SE-232 (silicone surfactant) produced by Momentive Performance Materials abroad, Niax M-6682 (ester surfactant) can be used to prepare net PU foam plastics.