CN105273660A - Improved low toxic adhesive - Google Patents

Abstract

An improved low toxic adhesive is prepared by following raw materials in parts by weight, 6 to 10 parts of nitrile-butamoldne rubber, 5 to 9 parts of ethyl acetate, 1 to 5 parts of polyvinyl alcohol, 4 to 8 parts of urea, 2 to 8 parts of resorcinol-formaldehyde-silica adhesion systems, 6 to 11 parts of low molecular polyamide, 3 to 8 parts of nano silica, 3 to 10 parts of precipitated barium sulfate, 2 to 8 parts of organic polysulfide, 2 to 7 parts of ferric oxide, 1 to 5 parts of sodium carboxymethyl starch, 5 to 10 parts of bisphenol A epoxy resin, 8 to 17 parts of formaldehyde, 3 to 8 parts of toughened resins, 2 to 7 parts of paraffin and 3 to 6 parts of ferrocene. The improved low toxic adhesive has the advantages of being low in toxicity and high in adhesiveness, and meanwhile has high chemical stability and is not prone to deterioration.

Description

A kind of low toxicity sizing agent of improvement

Technical field

The present invention relates to a kind of low toxicity sizing agent of improvement.

Background technology

At present, the tackiness agent of China is mainly main production raw material with formaldehyde, i.e. urea-formaldehyde resin adhesive, Phenol aldehyde resin and melamine-formaldehyde resin adhesive, its output account for that whole wood-based panel industry sticks with glue agent more than 90%, wherein, urea-formaldehyde resin adhesive due to low cost of manufacture, raw material be easy to get, bonding strength is high, color and luster close to plurality of advantages such as timber, and is subject to the favor of most of artificial board enterprise.But existing sizing agent is very large on the impact of environment, the injury of the formaldehyde simultaneously discharged to human body is larger, formaldehyde is when indoor reach finite concentration, people just has sense of discomfort, the concentration of formaldehyde being greater than 0.08m3 can cause furious, eye is itched, throat discomfort or pain, hoarseness, sneeze, uncomfortable in chest, asthma, dermatitis etc.People suck for a long time and may cause disease, cause irremediable loss, the one that the sizing agent therefore finding a kind of low toxic and environment-friendly has become people in the urgent need to.

Summary of the invention

For the deficiencies in the prior art, the technical problem to be solved in the present invention is, provides a kind of low toxicity sizing agent of improvement, has the advantages that toxicity is low, viscosity is good, has good chemical stability simultaneously, not easily occurs rotten.

For solving the deficiencies in the prior art, the technical scheme that the present invention takes is: a kind of low toxicity sizing agent of improvement, is made up of the raw material of following parts by weight:

Paracril 6-10 part, ethyl acetate 5-9 part, polyvinyl alcohol 1-5 part, urea 4-8 part, silica-hexa-resorcinol binding system 2-8 part, Versamid 6-11 part, nano silicon 3-8 part, process white 3-10 part, organic polysulfide 2-8 part, ferric oxide 2-7 part, sodium starch glycolate 1-5 part, bisphenol A epoxide resin 5-10 part, formaldehyde 8-17 part, toughened resin 3-8 part, paraffin 2-7 part, ferrocene 3-6 part.

The invention has the beneficial effects as follows that the low toxicity sizing agent of improvement of the present invention has the advantages that toxicity is low, viscosity is good, has good chemical stability simultaneously, not easily occur rotten.

Embodiment

embodiment 1

A low toxicity sizing agent for improvement, be made up of the raw material of following parts by weight:

Paracril 6 parts, ethyl acetate 5 parts, polyvinyl alcohol 1 part, 4 parts, urea, silica-hexa-resorcinol binding system 2 parts, Versamid 6 parts, nano silicon 3 parts, process white 3 parts, organic polysulfide 2 parts, ferric oxide 2 parts, sodium starch glycolate 1 part, bisphenol A epoxide resin 5 parts, 8 parts, formaldehyde, toughened resin 3 parts, 2 parts, paraffin, ferrocene 3 parts.

embodiment 2

A low toxicity sizing agent for improvement, be made up of the raw material of following parts by weight:

Paracril 10 parts, ethyl acetate 9 parts, polyvinyl alcohol 5 parts, 8 parts, urea, silica-hexa-resorcinol binding system 8 parts, Versamid 11 parts, nano silicon 8 parts, process white 10 parts, organic polysulfide 8 parts, ferric oxide 7 parts, sodium starch glycolate 5 parts, bisphenol A epoxide resin 10 parts, 17 parts, formaldehyde, toughened resin 8 parts, 7 parts, paraffin, ferrocene 6 parts.

Claims (1)

1. the low toxicity sizing agent improved, is characterized in that: be made up of the raw material of following parts by weight:

Paracril 6-10 part, ethyl acetate 5-9 part, polyvinyl alcohol 1-5 part, urea 4-8 part, silica-hexa-resorcinol binding system 2-8 part, Versamid 6-11 part, nano silicon 3-8 part, process white 3-10 part, organic polysulfide 2-8 part, ferric oxide 2-7 part, sodium starch glycolate 1-5 part, bisphenol A epoxide resin 5-10 part, formaldehyde 8-17 part, toughened resin 3-8 part, paraffin 2-7 part, ferrocene 3-6 part.