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A kind of preparation method of anti-insect pine heavy wood

A technology of Pinus sylvestris and recombined wood, which is applied in the field of wood processing, can solve the problems that basswood is easily damaged in the rotary cutting process, and achieve the effects of low price, easy processing, and convenient construction

Active Publication Date: 2020-02-21
DEHUA TB NEW DECORATION MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing recombined wood is mostly made of basswood, Ayous and other logs, which are prone to damage during rotary cutting and have been restricted for export

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Dissolve 100g rosin in 1200g solvent ethanol, then add 30g polyethylene glycol 400, adjust the pH of the reaction solution to be 8, heat to reflux reaction for 3 hours, cool to room temperature, remove the solvent by distillation under reduced pressure, and the residue in Vacuum-dried at 55°C, and then ground into 100-mesh powder, which is the modified rosin.

[0034] (2) A kind of end-capping glue, is made up of A, B two components, and described A component is made up of the component of following parts by weight: polyoxypropylene glycol 25 parts, hydroxymethyl cellulose 5 parts, oil 2 parts of polyoxyethylene acid ester, 1 part of polyoxyethylene polyoxypropylene pentaerythritol ether, 8 parts of montmorillonite and 30 parts of ethyl acetate;

[0035] The B component is composed of the following components in parts by weight: 20 parts of isocyanate, 10 parts of modified rosin and 20 parts of ethyl acetate.

[0036] (3) 100g camphor tree powder was placed in 1800...

Embodiment 2

[0040] (1) Dissolve 100g rosin in 1000g solvent ethanol, then add 40g polyethylene glycol 600, adjust the pH of the reaction solution to 8.5, heat to reflux for 2 hours, cool to room temperature, remove the solvent by distillation under reduced pressure, and the residue in Vacuum-dried at 50°C, and then ground into 80-mesh powder, which is the modified rosin.

[0041] (2) A kind of end-capping glue, is made up of A, B two components, and described A component is made up of the component of following parts by weight: polyoxypropylene triol 30 parts, hydroxymethyl cellulose 3 parts, lost 1 part of sorbitan fatty acid ester, 2 parts of polyoxyethylene polyoxypropanolamine ether, 5 parts of montmorillonite and 25 parts of ethyl acetate;

[0042] The B component is composed of the following components in parts by weight: 15 parts of isocyanate, 5 parts of modified rosin and 25 parts of ethyl acetate.

[0043](3) 100g camphor tree powder was placed in 1500g mixed solvent for reflux...

Embodiment 3

[0047] (1) Dissolve 100g rosin in 2000g solvent ethanol, then add 20g polyethylene glycol 800, adjust the pH of the reaction solution to be 9, heat to reflux reaction for 4 hours, cool to room temperature, remove the solvent by distillation under reduced pressure, and the residue in Vacuum-dried at 60°C, and then ground into 200-mesh powder, which is the modified rosin.

[0048] (2) A kind of end-capping glue, is made up of A, B two components, and described A component is made up of the component of following parts by weight: polytetrahydrofuran glycol 20 parts, hydroxymethyl cellulose 8 parts, dehydration 3 parts of sorbitol fatty acid ester, 3 parts of emulsified silicone oil, 10 parts of montmorillonite and 35 parts of ethyl acetate;

[0049] The B component is composed of the following components in parts by weight: 25 parts of isocyanate, 12 parts of modified rosin and 30 parts of ethyl acetate.

[0050] (3) 100g camphor tree powder was placed in 2000g mixed solvent for...

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PUM

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Abstract

The invention provides a preparation method for moth-proof pinus sylvestris scrimber. The preparation method comprises the following steps that 1, a pinus sylvestris log is cut with a saw and peeled, end sealing glue is applied to the two ends of the log, a blank veneer is obtained through rotary cutting or slicing, and a veneer M with the water content of 6%-16% is obtained after the veneer is blanched, dyed and dried; 2, double-face adhesive applying, assembling and cold pressing are conducted on the veneer M obtained in the step 1, and the needed moth-proof pinus sylvestris scrimber is obtained, wherein an adhesive used in double-face adhesive applying in the step 2 is prepared from, by weight, 30-50 parts of polyvinyl acetate, 8-15 parts of camphor tree essential oil and 10-20 parts of polyvinyl alcohol. According to the preparation method for the moth-proof pinus sylvestris scrimber, pinus sylvestris is adopted as the log, the material is convenient to obtain, low in cost and easy to process, and meanwhile the prepared scrimber has a moth-proof effect; the method that the end sealing glue is applied to the two ends of the log is adopted, therefore, the condition that the log veneer is broken is effectively prevented, and then the quality of the scrimber is further improved.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and in particular relates to a method for preparing heavy wood, in particular to a method for preparing insect-resistant pine heavy wood. Background technique [0002] my country is the country with the largest artificial forest area in the world. Since the implementation of the natural forest protection project, measures have been taken to close mountains and cultivate forests across the country, which has greatly reduced the amount of natural forest harvesting, resulting in increasingly prominent contradictions between the supply and demand of natural forest timber in China. In recent years, with the national government's high attention and the development of social ecological construction, my country's forest coverage rate has risen to 20.36% year by year, with a total area of ​​195 million hectares, of which the preserved area of ​​artificial forests has reached 62 million hectares, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/04B27D1/08B27K5/02B27K5/04B27G11/00C09J131/04C09J129/04C09J11/06C09J175/08C09J11/04C09J11/08
CPCB27D1/04B27D1/08B27G11/00B27K5/02B27K5/04C08L2205/03C09J11/04C09J11/06C09J11/08C09J131/04C09J175/08C08L29/04C08K5/0058C08L1/284C08L93/04C08K3/346
Inventor 詹先旭程明娟杨勇许斌卓艳
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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