Manufacturing method capable of inhibiting water encounter swelling of bamboo products

A water-swelling, production method technology, applied in the direction of manufacturing tools, reed/straw treatment, wood treatment, etc., can solve the problems of low adhesion strength, poor waterproof effect, poor flexibility, etc., to achieve enhanced insect repellent effect, increased hardness, and The effect of high impact strength

Inactive Publication Date: 2018-08-21
安徽泓浩竹科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Bamboo has excellent toughness. A hurricane can easily blow off a waist-high tree, but it will not break the bamboo. The main reason is that the bamboo fiber material has high strength, good elasticity and low density. Its strength is 3 to 4 times that of steel. Higher tensile strength and compressive strength; the cross section of bamboo is circular, the outer curved surface is under tension and the inner curved surface is under compression, and has strong bending stiffness. In the current bamboo product processing process, it is generally painted on the surface Varnish, but there are problems of poor waterproof effect, poor flexibility, and low adhesion strength. Breaking through the performance bottleneck of bamboo products has very important economic benefits and social value

Method used

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  • Manufacturing method capable of inhibiting water encounter swelling of bamboo products
  • Manufacturing method capable of inhibiting water encounter swelling of bamboo products
  • Manufacturing method capable of inhibiting water encounter swelling of bamboo products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method for inhibiting water swelling of bamboo products, comprising the steps of:

[0021] S1. Mix 3 parts of chitosan and 220 parts of water evenly in parts by weight, then add 40 parts of dried bamboo strips, stand at high temperature for 6 hours, the temperature of standing at high temperature is 80°C, and separate the solid and liquid to obtain the first material;

[0022] S2. Mix 20 parts of urea, 2 parts of calcium lignosulfonate, and 30 parts of guar beans in parts by weight, ripen for 10 minutes at a curing temperature of 90°C, grind evenly, add 25 parts of glycerol and 20 parts of epoxy resin 140 parts of water were stirred for 16 minutes at a stirring speed of 600 r / min, then 4 parts of phosphoric acid were added to mix evenly, filtered, vacuum-dried at 65°C to constant weight, and the vacuum degree was 8kPa, and pulverized to obtain the second material;

[0023] S3, add 1 part of the second material, 6 parts of honeysuckle powder, 2 parts of dis...

Embodiment 2

[0026] A preparation method for inhibiting water swelling of bamboo products, comprising the steps of:

[0027] S1. Mix 5 parts of chitosan and 120 parts of water evenly in parts by weight, then add 60 parts of dried bamboo strips, stand at high temperature for 4 hours, the temperature of standing at high temperature is 90°C, and separate the solid and liquid to obtain the first material;

[0028] S2. Mix 14 parts of urea, 4 parts of calcium lignosulfonate, and 20 parts of guar beans in parts by weight, ripen for 20 minutes at a curing temperature of 80°C, grind evenly, add 35 parts of glycerol, and 10 parts of epoxy resin 1. Stir 220 parts of water for 8 minutes at a stirring speed of 700 r / min, then add 2 parts of phosphoric acid and mix evenly, filter, vacuum-dry at 75°C to constant weight, and the vacuum degree is 2kPa, and pulverize to obtain the second material;

[0029] S3. Add 2 parts of the second material, 4 parts of honeysuckle powder, 4 parts of dispersant, and 2 p...

Embodiment 3

[0032] A preparation method for inhibiting water swelling of bamboo products, comprising the steps of:

[0033] S1. Mix 3.5kg of chitosan and 200kg of water evenly, then add 45kg of dry bamboo strips, and stand at a high temperature for 5.5 hours, the temperature of which is 82°C, and separate the solid and liquid to obtain the first material;

[0034] S2. Mix 18kg of urea, 2.5kg of calcium lignosulfonate, and 28kg of guar beans evenly, ripen for 12min at a ripening temperature of 86°C, grind evenly, add 28kg of glycerol, 18kg of epoxy resin, and 160kg of water and stir for 14min, then stir The speed is 640r / min, then add 3.5kg of phosphoric acid and mix evenly, filter, vacuum dry at 68°C until constant weight, the vacuum degree is 6kPa, and pulverize to obtain the second material;

[0035] S3. Add 1.2kg of the second material, 5.5kg of honeysuckle powder, 2.5kg of dispersant, and 3.5kg of thickener into 105kg of nano-polyurethane emulsion and stir for 45min at a stirring spee...

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PUM

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Abstract

The invention discloses a manufacturing method capable of inhibiting water encounter swelling of bamboo products. The manufacturing method comprises following steps: chitosan and water are mixed, dried bamboo strips are added, and an obtained mixture is allowed to high temperature standing so as to obtain a first material; urea, calcium lignin sulphonate, and cluster bean are uniformly mixed, andare subjected to aging and uniform grinding, glycerol, epoxy resin, and water are added for stirring, phosphoric acid is added for uniform mixing, filtering is carried out, vacuum drying is carried out until the weight of an obtained material is constant, and then crushing is carried out so as to obtain a second material; the second material, honeysuckle flower powder, a dispersant, and a thickening agent are added into a nanometer polyurethane emulsion for stirring, water, a film forming auxiliary agent, epoxy soybean oil, 3-iodo-2-propynylbutylcarbamate, a wetting agent, and a defoaming agent are added for uniform stirring and filtering so as to obtain a third material; the first material is dried, is subjected to carbonization treatment in a carbide furnace, is filtered, is immersed ina mixed oil, is taken out from the mixed oil, is dried, is coated with the third material, and is subjected to solidifying, drying, and braiding so as to obtain bamboo products.

Description

technical field [0001] The invention relates to the technical field of bamboo products, in particular to a production method for preventing bamboo products from swelling when encountering water. Background technique [0002] Bamboo has excellent toughness. A hurricane can easily blow off a waist-high tree, but it will not break the bamboo. The main reason is that the bamboo fiber material has high strength, good elasticity and low density. Its strength is 3 to 4 times that of steel. Higher tensile strength and compressive strength; the cross section of bamboo is circular, the outer curved surface is under tension and the inner curved surface is under compression, and has strong bending stiffness. In the current bamboo product processing process, it is generally painted on the surface Varnish, but there are problems of poor waterproof effect, poor flexibility, and low adhesion strength. Breaking through the performance bottleneck of bamboo products has very important economic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K9/00B27K3/02B27K3/12B27K3/34B27K3/52B27K3/50B27M1/06
CPCB27K9/002B27K3/02B27K3/12B27K3/34B27K3/50B27K3/52B27K2240/20B27K2240/70B27M1/06
Inventor 余宏浩袁保琴余龙
Owner 安徽泓浩竹科技股份有限公司
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