CN102702997A - Strong-adhesion liquid wood adhesive powder - Google Patents

Abstract

The invention discloses a strong-adhesion liquid wood adhesive powder, relates to the adhesive field, and particularly relates to an environment-friendly adhesive without wood adhesive powder. The strong-adhesion liquid wood adhesive powder comprises following components in parts by mass: 5-10% of polyvinyl alcohol, 5-8% of calcium chloride, 20-30% of calcium carbonate, 8-15% of starch, 25-35% of A material, 5-15% of diatomite, 0.2-1% of antifoaming agent, 0.2-1% of preservative, 0.3-1% of dispersant, 1-2% of plasticizer and 20-30% of water. The strong-adhesion liquid wood adhesive powder prepared by the above formula has strong adhesion, no benzene, no aldehyde, no toxicity and no harm, and is environment friendly, low in carbon, high in solid content, small in shrinkage, good in initial adhesion, fast in drying speed, resistant in freezing resistance and easy in gluing and the like.

Description

Powerful liquid ureaformal dehyde resin glue

Technical field

The present invention relates to adhesive area, especially environment-friendly type, the non-tackiness agent that contains ureaformal dehyde resin glue.

Background technology

Ureaformal dehyde resin glue is to be cooperated by pulverous urea-formaldehyde resin, toughener and solidifying agent to form.Earlier it is dissolved in the water before using, can be widely used in the tackiness agent of wood working industry after mixing.It can cold-adhered, heat bonding.This glue has the bonding strength height, the characteristics that are easy to preserve.The contained formaldehyde amount of other ureaformal dehyde resin glue of E0 level can be less than 0.5mg/L through detecting, and the E1 level is exactly to be less than 1.5mg/L greater than 0.5mg/L, and E2 is less than 5mg/L greater than 1.5mg/L.Basically ureaformal dehyde resin glue can only be accomplished the E2 rank now, if accomplish the words (not adding under the prerequisite that properties-correcting agent is catching agent for free formaldehyde) of E1 or even E0, that just has only this product of cyanurotriamide modified urea resin rubber powder to accomplish.By on can know; Though ureaformal dehyde resin glue is widely used because of its excellent performance in wood working industry, fitting-up industry, construction industry; But to have corrodibility, stability to aging, weathering resistance poor because of it; Its use range has received very big restriction, is difficult to satisfy the technical requirements of electronic information and space flight and aviation industry.Again because of it contains formaldehyde etc. to the deleterious composition of toxic elements in human body, and contaminate environment impairs one's health, and is limited to use.Therefore must improve the manufacturing technology of existing tackiness agent, to satisfy the actual user demand of people's safety, relieved, environmental protection.

Summary of the invention

For overcoming the defective of above-mentioned prior art; The present invention provides a kind of brute force, the environment-friendly water-based tackiness agent of weather-proof, anti-aldehyde; No benzene, no aldehyde, nontoxic, harmless, safety and environmental protection, making are simple, easy to use, not only can substitute ureaformal dehyde resin glue, and can absorb objectionable constituent such as formaldehyde; More, can satisfy its technical requirements applicable to electronic information industry and aerospace industry.

Technical scheme of the present invention is: a kind of powerful liquid ureaformal dehyde resin glue is characterized in that being made up of the component of following mass fraction:

Above-mentioned powerful liquid ureaformal dehyde resin glue, said A type material is made up of the component of following mass fraction:

Above-mentioned A type material adopts following method to process:

(1) zero(ppm) water is put into the Z 150PH dissolution kettle with after the soft water scale tank metering;

(2) will put in the Z 150PH dissolution kettle;

(3) heat up for the Z 150PH dissolution kettle, make to dissolve and stirred 1--4 hour after temperature in the kettle rises to 95 ℃;

(4) render in the monomer scale tank vinyl acetate between to for plastic, Bing Xisuandingzhi, vinylformic acid, TEB 3K mixing subsequent use; Render in the softening agent scale tank softening agent subsequent use; Ammonium persulphate being mixed with 10% solution renders in the initiator scale tank subsequent use; Being mixed with sodium bicarbonate 10% solution renders in the PH buffer reagent scale tank subsequent use;

(5) be transported to the polyvinyl alcohol solution in the Z 150PH dissolution kettle in the polymeric kettle, and add TX10, sodium lauryl sulphate, sodium ethylene diamine tetracetate, and stirring makes its dissolving;

(6) in polymeric kettle, add the 15--20% of mix monomer total amount by the monomer scale tank, in polymeric kettle, add the 30--40% of solution total amount, stirred 30 minutes by the initiator scale tank;

(7) heat up to polymeric kettle, make the polymerization temperature in the kettle rise to 60--65 ℃, polyreaction begins, and refluxing appears in reflux exchanger;

(8) wait to reflux when reducing, beginning drips mix monomer by the monomer scale tank in polymeric kettle; In polymeric kettle, drip ammonium persulfate solution by the initiator scale tank, the controlled polymerization temperature of reaction is at 78--80 ℃, and mix monomer dripped off in 8 hours in the monomer scale tank, added ammonium persulfate solution in whole initiator scale tanks then;

(9) heat up to polymeric kettle, make the polymerization temperature in the kettle rise to 90--95 ℃, be incubated 30 minutes;

(10) then to the polymeric kettle cooling, make the polymerization temperature in the kettle reduce to 50 ℃, add saleratus solution by PH buffer reagent scale tank again, add whole softening agent, add sanitas, fully mix by the softening agent scale tank;

(11) with after the above-mentioned finished product filtration, put into storage tank.

The powerful liquid ureaformal dehyde resin glue that adopts above-mentioned prescription and technology to process has superpower cohesive force, and no benzene, no aldehyde, nontoxic, harmless, environmental protection, low-carbon (LC) also have the solid content height, shrinking percentage is little, tack good, rate of drying is antifreeze soon, be prone to gluing etc.

Embodiment

Embodiment one: the prescription of powerful liquid ureaformal dehyde resin glue:

Said starch is food-grade corn starch.

Wherein: the prescription of said A type material:

Adopt following method to process the A type material:

(1) zero(ppm) water is put into the Z 150PH dissolution kettle with after the soft water scale tank metering;

(2) will put in the Z 150PH dissolution kettle;

(3) heat up for the Z 150PH dissolution kettle, make to dissolve and stirred 1--4 hour after temperature in the kettle rises to 95 ℃;

(4) render in the monomer scale tank vinyl acetate between to for plastic, Bing Xisuandingzhi, vinylformic acid, TEB 3K mixing subsequent use; Render in the softening agent scale tank softening agent subsequent use; Ammonium persulphate being mixed with 10% solution renders in the initiator scale tank subsequent use; Being mixed with sodium bicarbonate 10% solution renders in the PH buffer reagent scale tank subsequent use;

(5) be transported to the polyvinyl alcohol solution in the Z 150PH dissolution kettle in the polymeric kettle with surge pump through strainer, and add TX10, sodium lauryl sulphate, sodium ethylene diamine tetracetate, and stirring makes its dissolving by manhole;

(6) in polymeric kettle, add the 15--20% of mix monomer total amount by the monomer scale tank, in polymeric kettle, add the 30--40% of solution total amount, stirred 30 minutes by the initiator scale tank;

(7) make its intensification to feeding steam in the jacket of polymerization, make the polymerization temperature in the kettle rise to 60--65 ℃, polyreaction begins, and refluxing appears in reflux exchanger;

(8) wait to reflux when reducing, beginning drips mix monomer by the monomer scale tank in polymeric kettle; In polymeric kettle, drip ammonium persulfate solution by the initiator scale tank, the controlled polymerization temperature of reaction is at 78--80 ℃, and mix monomer dripped off in 8 hours in the monomer scale tank, added ammonium persulfate solution in whole initiator scale tanks then;

(9) heat up to polymeric kettle, make the polymerization temperature in the kettle rise to 90--95 ℃, be incubated 30 minutes;

(10) then to the polymeric kettle cooling, make the polymerization temperature in the kettle reduce to 50 ℃, add saleratus solution by PH buffer reagent scale tank again, add whole softening agent, add sanitas, fully mix by the softening agent scale tank;

(11) with after the above-mentioned finished product filtration, put into storage tank.

Powerful its PI of liquid ureaformal dehyde resin glue that adopts above-mentioned prescription to process is compared with ureaformal dehyde resin glue has beneficial effect:

Embodiment two: adopt A type material among the embodiment one, the prescription of powerful liquid ureaformal dehyde resin glue is:

Embodiment three: adopt A type material among the embodiment one, the prescription of powerful liquid ureaformal dehyde resin glue is:

Claims (2)

1. powerful liquid ureaformal dehyde resin glue is characterized in that being made up of the component of following mass fraction:

2. powerful liquid ureaformal dehyde resin glue according to claim 1 is characterized in that said A type material is made up of the component of following mass fraction:

Above-mentioned A type material adopts following method to process:

(1) zero(ppm) water is put into the Z 150PH dissolution kettle with after the soft water scale tank metering;

(2) will put in the Z 150PH dissolution kettle;

(3) heat up for the Z 150PH dissolution kettle, make to dissolve and stirred 1--4 hour after temperature in the kettle rises to 95 ℃;

(4) render in the monomer scale tank vinyl acetate between to for plastic, Bing Xisuandingzhi, vinylformic acid, TEB 3K mixing subsequent use; Render in the softening agent scale tank softening agent subsequent use; Ammonium persulphate being mixed with 10% solution renders in the initiator scale tank subsequent use; Being mixed with sodium bicarbonate 10% solution renders in the PH buffer reagent scale tank subsequent use;

(5) be transported to the polyvinyl alcohol solution in the Z 150PH dissolution kettle in the polymeric kettle, and add TX10, sodium lauryl sulphate, sodium ethylene diamine tetracetate, and stirring makes its dissolving;

(6) in polymeric kettle, add the 15--20% of mix monomer total amount by the monomer scale tank, in polymeric kettle, add the 30--40% of solution total amount, stirred 30 minutes by the initiator scale tank;

(7) heat up to polymeric kettle, make the polymerization temperature in the kettle rise to 60--65 ℃, polyreaction begins, and refluxing appears in reflux exchanger;

(8) wait to reflux when reducing, beginning drips mix monomer by the monomer scale tank in polymeric kettle; In polymeric kettle, drip ammonium persulfate solution by the initiator scale tank, the controlled polymerization temperature of reaction is at 78--80 ℃, and mix monomer dripped off in 8 hours in the monomer scale tank, added ammonium persulfate solution in whole initiator scale tanks then;

(9) heat up to polymeric kettle, make the polymerization temperature in the kettle rise to 90--95 ℃, be incubated 30 minutes;

(10) then to the polymeric kettle cooling, make the polymerization temperature in the kettle reduce to 50 ℃, add saleratus solution by PH buffer reagent scale tank again, add whole softening agent, add sanitas, fully mix by the softening agent scale tank;

(11) with after the above-mentioned finished product filtration, put into storage tank.