TW EASTERN CHEM SINGAPORE PTE.LTD
Is polyacrylamide toxic?
Is polyacrylamide toxic? Many people who have
just come into contact with this product have such doubts. Actually,
polyacrylamide itself is non-toxic, but the acrylamide used in the production
process is toxic. To solve this problem, we can begin from its production
process and production process to analyze it.
Polyacrylamide
is mainly produced by aqueous solution polymerization, which is directly
polymerized under the action of initiator. Dry powder is polymerized in 20-30%
acrylamide aqueous solution at medium concentration. The colloid after
polymerization is granulated, dried and crushed to form powder polyacrylamide. There are also inverse suspension polymerization, in which
small droplets of acrylamide are suspended in organic solution to produce high
molecular weight and instant polyacrylamide beads. In the production process, the reaction
temperature and time should be strictly controlled so as to make the reaction
sufficient and the residual acrylamide should be strictly controlled. Residue
of acrylamide is generally controlled below 0.01%.
The
toxicity of acrylamide is introduced below: acrylamide is a white crystalline
chemical and raw material for the production of polyacrylamide. The human body
can contact acrylamide through digestive tract, respiratory tract, skin and
mucosa and other ways. Drinking water is one of the important ways of contact. Acrylamide can be absorbed by human body through many ways,
among which it is absorbed fastest through digestive tract. About 90% of the
acrylamide entering the human body is metabolized, and only a small amount is
excreted through urine in its original form. When acrylamide enters the body,
it binds to guanine on DNA to form adducts, which lead to genetic damage and
gene mutation.
Surveys
of professionals exposed to acrylamide and people accidentally exposed to
acrylamide have shown that acrylamide has neurotoxic effects, but there is
insufficient evidence that food intake of acrylamide is significantly
associated with the occurrence of certain human tumors.
Although
polyacrylamide is non-toxic, the raw material of producing polyacrylamide
acrylamide is toxic, so it is suggested that we should not touch it directly by
hand, let alone eat it.