Does the plywood contain formaldehyde? What are the grades of formaldehyde?

- Apr 11, 2019-

What Is Plywood

 

Plywood is a three-layer or multi-layered plate-like material. that cut into thin wood or cut into veneers by wood segments and glued with adhesive. Generally. an odd-numbered veneer used to form a plate in which the fiber directions of adjacent layers are perpendicular to each other. Plywood always used in cabinetschairs and contemporary sofa.


melamine laminated plywood use in itchen

How To Judge The Formaldehyde Content Of Plywood?

 

(1) Plywood contains a certain amount of formaldehyde. because the urea-formaldehyde resin glue used in the plywood manufacturing process. As a synthesized urea-formaldehyde resin, formaldehyde accompanied by formaldehyde. The environmental protection degree should judged according to the level of formaldehyde.

 

(2) Environmental protection standards for plates:

According to China's environmental protection standards,

 according to the concept of formaldehyde release limit,

the formaldehyde limit level in the plates divided into three levels. That is, E2 5.0 mg / L, E1 1.5 mg / L, E0 0.5 mg / L. The board can reach the E2 standard. That is,

E2, E1 and E0 grade plates can called plates,

but due to the improvement of consumers' environmental awareness, E1 grades and even E0 grades are more common on the market.

 

(3) If you smell a pungent smell near the warehouse or if your eyes feel uncomfortable. it will shed tears, so the formaldehyde content is already quite high.

 

What Harm Does Formaldehyde Pollution Bring To Us?

 

1, stimulating effect: formaldehyde will stimulate the skin mucosa. Because formaldehyde is a protoplasmic substance. it can bind to proteins, and when inhaled at high concentrations. it can cause severe respiratory irritation and edema, eye irritation, and headache.

 

2, sensitization:

direct contact with formaldehyde can cause allergic dermatitis,

pigmentation, necrosis, inhalation of high concentrations of formaldehyde can induce bronchial asthma.

 

3, mutagenic effect:

high concentration of formaldehyde is also a genotoxic substance;

can cause nasopharyngeal tumors, leukemia, fetal chromosomal abnormalities.

 

4, outstanding performance:

headache,

dizziness,

fatigue,

nausea,

vomiting,

chest tightness,

eye pain, tears,

sore throat,

stomach anorexia,

palpitations,

insomnia,

weight loss,

memory loss

and autonomic disorders;

long-term inhalation of pregnant women may lead to pregnancy Syndrome, fetal malformation. and even death. Female menstrual disorders. Children's mental decline; men's long-term inhalation can lead to male sperm deformity, death and so on.


laminated veneer board

What Are Tips To Remove Formaldehyde?

 

used solid adsorbents include coke and activated carbon. The most used activated carbon. Activated carbon has adsorption functions for :

benzene, toluene, xylene, ethanol, ether, kerosene, gasoline, styrene, and vinyl chloride.

 

I would like to let you know more about the grades  of formaldehyde in the plywood. I hope this will help everyone,please feel free to click on www.yspanel.com.to discover our entire product.


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