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Epoxy resin applies medium labor protection

From;  Author:Stand originally

One, epoxy resin

Epoxy resin of double phenolic A epoxy resin, 4 bromic double phenolic A epoxy resin, phenolic aldehyde epoxy resin, adjacent cresol formaldehyde is the material of low poison, 2000mg/kg of > of LD50 of profess to convinced of classics of become known rat. In the saturated steam that buy experiment animal measures epoxy resin at small element everyday 7h, in all 50 days, without apparently toxic. Classics dominance is deadly and choppy index (Ames) the experiment proves to not have cause cancer, send abnormal, cause cellular mutation quality, accordingly, use going up is safety. But contain in epoxy resin, 0.5% volatile material of the left and right sides, although they are below normal temperature vapour pressure is very low, but the stimulation that increasing hot circumstance to issue pair of respiratory tract, cutaneous is osmotic increase, should strengthen ventilated with the individual defend.

In light of the result that experiments from poisonous manage, the element measures taller epoxy resin, LD50 value is greater, when accordingly every involves application to be used at food, medical treatment, should choose an element to measure as far as possible tall, volatilize minute of circlet oxygen colophony.

2, solidify agent

Use solidify agent necessarily when the application of epoxy resin, the physical function because of agent of this pair of solidify especially noxiousness should understand somewhat beforehand, choose the assortment with small noxiousness as far as possible, take necessary labor protection step.

(1) the noxiousness of adipose amine basically behaves adipose amine the stimulation that is pair of skins and mucous membrane. Second 2 amine, 2 inferior second radical 3 amine, 3 inferior second radical although belong to small poisonous matter,4 amines look from LD50 value, but their boiling point is inferior, especially second 2 amine boiling point only 116 ℃ , the meeting when osculatory chroma is too big causes skin Sao urticant, erythema, oedema, individual person has irritability asthma and endurance to have a headache wait for a symptom. Because this uses these adipose amine to regard solidify as the agent directly rarely at present, regard production modified as the raw material of amine and polyamide however. When the adipose amine that in production polyamide opposite measures undertakes decompression reclaims, have a few ammoniac gas generation, after can using rare hydrochloric acid to drench in the gush in the tower, discharge again empty. The ammonium salt solution that after gush drenchs, makes shows acidity, these waste liquid can regard the neutralization of the alkalescent brine of the generation in epoxy resin production as the agent, in entering liquid waste to administer device along with all the others again, undertake handling.