Synthetic resin adhesive for E0/E1 level shaving board

A synthetic resin and adhesive technology, applied in adhesives, aldehyde/ketone condensation polymer adhesives, adhesive types, etc., can solve water resistance, aging resistance decline, poor mechanical properties of wood-based panels, wood-based panel mechanics High strength and other problems, to achieve good bonding strength, suitable curing time and stability, and eliminate the effect of dehydration process
CN101348699AInactive Publication Date: 2009-01-21DARE TECH
0 Cites 30 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DARE TECH
Publication Date
2009-01-21
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a synthetic resin adhesive for an E0 / E1 grade flakeboard, which is melamine modified urea-formaldehyde resin; formaldehyde with the concentration of 48 percent in mass percentage is adopted as a raw material; the adhesive comprises the following reaction materials in percentage by mass: 4.0 to 5.0 percent of melamine, 43.0 to 45.0 percent of urea, 48.0 to 51.0 percent of formaldehyde, 1.00 to 1.10 percent of addition agent, 0.20 to 0.22 percent of polyvinyl alcohol and proper acid and alkali; the total molar ratio is between 1.08 and 1.11; and the materials are reacted and synthesized, thereby preparing the adhesive. The high-concentration formaldehyde is adopted as the raw material; the adhesive has excellent bonding strength, proper curing time, good storage stability and the free formaldehyde content of between 0.06 and 0.08 percent; with the adhesive, the E1 and E0 flakeboard with excellent quality can be stably produced; and the adhesive has the advantages of low adhesive application amount, strong process adaptability, rapid curing, etc.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an adhesive for artificial boards, in particular to a synthetic resin adhesive for particle boards meeting environmental protection requirements. Background technique

[0002] The conventional particleboard manufacturing process is to process wood or various residues in wood production into shavings, add a certain amount of adhesive, and then make finished products through stirring, paving and molding, hot pressing and other processes. Due to the excellent gluing performance and low cost of synthetic resin adhesives, synthetic resin adhesives are basically used in the wood industry and particle board manufacturing at present. The adhesive used in wood-based panels is mainly urea-formaldehyde resin adhesive, accounting for more than 90% of the total amount. Formaldehyde is contained in various synthetic resin adhesives currently used.

[0003] Urea-formaldehyde resin adhesives have disadvantages such as poor water resistance, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More