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A technology of wood adhesive and alkali lignin, which is applied in the field of building materials to achieve the effect of uniform and convenient glue application, good cold pressing effect and high solid content
Inactive Publication Date: 2015-01-21
王璐
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Abstract
Description
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Problems solved by technology
However, aldehyde-based adhesives and their products will release formaldehyde during use.
Method used
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Embodiment 1
[0010] The present invention is a kind of wood adhesive, is made from the raw material of following parts by weight:
[0011] 2.3 parts of N-lauric acid acyl glutamate, 4.5 parts of soybean protein, 3.2 parts of renewable dispersible latex powder, 1.2 parts of phthalates, 2.5 parts of 2-aminotriethanol, 0.5 parts of paraformaldehyde, alkali wood 1 part of prime and 1.2 parts of amide polyamine resin.
Embodiment 2
[0013] The present invention is a kind of wood adhesive, is made from the raw material of following parts by weight:
[0014] 4.2 parts of N-lauric acid acyl glutamate, 8.5 parts of soybean protein, 4.8 parts of renewable dispersible latex powder, 2.6 parts of phthalates, 4.2 parts of 2-aminotriethanol, 1.5 parts of paraformaldehyde, alkali wood 2.3 parts of prime and 2.4 parts of amidopolyamine resin.
Embodiment 3
[0016] The present invention is a kind of wood adhesive, is made from the raw material of following parts by weight:
[0017] 3.6 parts of N-lauric acid acyl glutamate, 6.5 parts of soybean protein, 4.2 parts of renewable dispersible latex powder, 2.3 parts of phthalates, 3.8 parts of 2-aminotriethanol, 0.8 parts of paraformaldehyde, alkali wood 1.5 parts of prime and 1.8 parts of amide polyamine resin.
[0018] Compared with the existing products, the present invention can bond wood and various wood-based panels, no formaldehyde is released in the process of production and use, and will not cause health damage caused by formaldehyde to workers and consumers; the environment after normal production and gluing The dehydration time is more than 120 minutes at a temperature of 30 degrees Celsius, which can fully meet the domestic production needs; the adhesive has a high viscosity, is easy to apply evenly, has a high solid content, and has a good cold pressing effect. Store for ...
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Abstract
The invention discloses a wood adhesive, which is prepared from the following raw materials in parts by weight: 2.3-4.2 parts of N-lauroyl glutamine, 4.5-8.5 parts of soybean protein, 3.2-4.8 parts of regenerative dispersible latex powder, 1.2-2.6 parts of phthalate, 2.5-4.2 parts of 2-trihydroxytriethylamine, 0.5-1.5 parts of paraformaldehyde, 1-2.3 parts of alkali lignin, and 1.2-2.4 parts of amide polyamine resin. Compared with the existing product, the wood adhesive can adhere wood and various artificial boards, no formaldehyde is released during production and use so as to be incapable of causing health damage of workers and consumers; after normal production and adhesive coating are performed, the water loss time is more than 120minutes at the ambient temperature of 30DEG C, thus being capable of completely meeting the domestic production demand; the wood adhesive is large in viscosity, uniform and convenient to coat, high in solid content, good in cold-pressing effect, and the wood adhesive can be stored for a long time at the room temperature of 20DEG C after modification reaction is completed.
Description
technical field [0001] The invention relates to a wood adhesive and belongs to the field of building materials. Background technique [0002] At present, the adhesives used in the wood industry are still dominated by "trialdehyde glue" (urea-formaldehyde resin, phenolic resin, melamine-formaldehyde resin). However, aldehyde-based adhesives and their products will release formaldehyde during use. Formaldehyde has become one of the main indoor pollutants, seriously threatening people's physical and mental health. In addition, some raw materials of aldehyde-based adhesives come from non-renewable resources, so it is necessary to develop new adhesives when the resources are gradually exhausted. Protein glue is one of the oldest adhesives, but due to the different raw materials of protein, the produced protein glue is also very different. With the continuous advancement of technology, in recent years, in the development of "natural vegetable glue", two categories of "starch gl...
Claims
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Application Information
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