Low-additive-amount long-acting low-humidity-resistant washable polyvinyl chloride special antistatic agent

Abstract

The invention relates to the field of antistatic agents, and discloses a low-additive-amount long-acting low-humidity-resistant washable polyvinyl chloride special antistatic agent and a preparation method thereof. The antistatic agent is prepared from components in percentage by mass as follows: 5%-35% of an anionic surfactant, 0%-25% of a cationic surfactant, 0%-25% of an ionic compound, 15%-35%of alkanolamide and / or a derivative nonionic surfactant thereof, 10%-30% of a dispersing agent and 5%-18% of a functional aid, wherein at least one of the cationic surfactant and the ionic compound exists. The liquid antistatic agent is light in color, transparent and low in viscosity, after a small amount of the liquid antistatic agent is added to a PVC matrix, the transparency and mechanical properties of the PVC product are hardly affected, and the obtained product has excellent antistatic performance and can still keep good, lasting and stable antistatic performance in a low-temperature and low-humidity environment and is excellent in washing resistance.

Description

technical field [0001] The invention relates to the field of antistatic agents, in particular to a special antistatic agent for low-addition, long-acting, low-humidity, and water-resistant polyvinyl chloride. Background technique [0002] Polyvinyl chloride plastic (PVC) is widely used in construction, packaging, household appliances, transportation, electronic components, Defense industry and other fields. In recent years, the scale of my country's PVC industry has expanded rapidly, and the annual output in 2010 has exceeded 20 million tons. However, polyvinyl chloride without antistatic modification has good insulation, and its surface resistance is as high as 10 14 ~10 17 Ω, friction and peeling will generate static electricity accumulation, sometimes as high as thousands of volts or even tens of thousands of volts, the lighter ones will cause surface dust collection, and the heavier ones will cause accidents such as fire, explosion, and failure of electronic component...

AI Technical Summary

Problems solved by technology

Adding conductive fillers is practical and cheap, and the antistatic performance of the resulting composite materials is durable and stable, but usually requires a relatively high amount of addition to reach the percolation threshold, and black conductive fillers will obviously change the color of PVC products and reduce their transparency. It is not suitable for occasions that require color and transparency; cationic quaternary ammonium salt antistatic agents commonly used in PVC have excellent antistatic performance and strong adhesion to polymer materials, but some quaternary ammonium salt compounds have poor thermal stability. It has certain toxicity and irritation, and will react with some colorants and fluorescent whitening agents, so its use as an internal antistatic agent is subject to certain restrictions; while externally applied surfactant antistatic agents can be used at low temperature and low ambient humidity Under certain conditions, the antistatic performance will be greatly weakened or even disappeared, and it does not have durability and washing resistance

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