阅读说明：本技术 一种提升黄藤耐潮及使用稳定性的处理方法 (Treatment method for improving moisture resistance and use stability of fibraurea recisa pierre ) 是由 李明 李东猛 于 2019-11-04 设计创作，主要内容包括：本发明公开了一种提升黄藤耐潮及使用稳定性的处理方法,包括如下步骤：(1)清洗处理、(2)一次干燥处理、(3)复合处理液浸泡处理、(4)二次干燥处理、(5)浸渍剂浸渍改性处理、(6)调湿固化处理。本发明处理方法步骤简单,工艺搭配合理,极适用于黄藤的处理,能够明显的提高黄藤的耐潮性、力学强度,以及使用稳定性,延长了其寿命,极具市场竞争力。(The invention discloses a treatment method for improving moisture resistance and use stability of fibraurea recisa pierre, which comprises the following steps: (1) cleaning treatment, (2) primary drying treatment, (3) soaking treatment of composite treatment liquid, (4) secondary drying treatment, (5) impregnating modification treatment of impregnant, and (6) humidity-regulating curing treatment. The treatment method has simple steps and reasonable process matching, is extremely suitable for treating the fibraurea recisa pierre, can obviously improve the moisture resistance, the mechanical strength and the use stability of the fibraurea recisa pierre, prolongs the service life of the fibraurea recisa pierre, and has extremely high market competitiveness.)

1. A treatment method for improving the moisture resistance and the use stability of fibraurea recisa pierre is characterized by comprising the following steps:

(1) firstly, removing leaves and peels of fibraurea recisa pierre, then boiling the fibraurea recisa pierre in boiling water for 40-50 min, then taking the fibraurea recisa pierre out and immersing in acid liquor for soaking for 10-15 min, and finally taking the fibraurea recisa pierre out and washing with clear water for one time for later use;

(2) putting the fibraurea recisa pierre treated in the step (1) into a vacuum drying oven for drying treatment, and taking the fibraurea recisa pierre out for later use after 3-4 hours;

(3) immersing the fibraurea recisa pierre treated in the step (2) into the composite treatment liquid, immediately introducing alternating current into the composite treatment liquid after 1-1.5 min, stopping after 3-5 min, taking out the fibraurea recisa pierre, and washing the fibraurea recisa pierre with clear water for later use; the composite treatment liquid comprises the following components in parts by weight: 20-25 parts of sodium chloride, 10-15 parts of dodecyl trimethyl ammonium bromide, 5-8 parts of nano silver powder, 8-14 parts of fatty alcohol-polyoxyethylene ether and 500-600 parts of water;

(4) placing the fibraurea recisa pierre treated in the step (3) into a constant temperature and humidity box, controlling the temperature of a dry bulb to be 32-35 ℃ and the relative humidity to be 70-75%, drying the fibraurea recisa pierre until the water content is 11-13%, and taking out for later use;

(5) putting the fibraurea recisa pierre treated in the step (4) into a vacuum pressure impregnation tank containing an impregnant, carrying out impregnation treatment on the fibraurea recisa pierre, and taking the fibraurea recisa pierre out for later use after 2-2.5 hours;

(6) and (4) placing the fibraurea recisa pierre treated in the step (5) into a constant-temperature constant-humidity box for humidifying and curing, and taking out the fibraurea recisa pierre after 1-2 hours.

2. The treatment method for improving the moisture resistance and the use stability of the fibraurea recisa pierre as claimed in claim 1, wherein the acid solution in the step (1) is 6-8% by weight of hydrochloric acid solution.

3. The method as claimed in claim 1, wherein the temperature in the vacuum drying oven is controlled to be 70-75 ℃ during the drying process in step (2).

4. The method as claimed in claim 1, wherein the current intensity of the alternating current treatment in step (3) is controlled to be 25-30 mA/cm²。

5. The processing method for improving moisture resistance and use stability of fibraurea recisa pierre as claimed in claim 1, wherein the particle size of the silver nanoparticles in step (3) is 10-30 nm.

6. The treatment method for improving the moisture resistance and the use stability of the fibraurea recisa pierre as claimed in claim 1, wherein the impregnant in the step (5) comprises the following components in parts by weight: 90-100 parts of urea-formaldehyde resin and 5-8 parts of polyvinyl alcohol.

7. The method as claimed in claim 1, wherein the pressure in the vacuum pressure impregnation tank is maintained at 2.5-3 MPa during the impregnation treatment in step (5).

8. The treatment method for improving the moisture resistance and the use stability of the fibraurea recisa pierre as claimed in claim 1, wherein the temperature in the constant temperature and humidity chamber is maintained at 110-115 ℃ and the relative humidity is maintained at 65-70% during the humidity conditioning and curing treatment in step (6).

Technical Field

The invention belongs to the technical field of fibraurea recisa pierre processing, and particularly relates to a processing method for improving moisture resistance and use stability of fibraurea recisa pierre.

Background

Rattan is a tough and tough vine with extremely long body, and is commonly used for weaving wicker products due to the qualities of smooth hand feeling, smooth appearance and the like. However, the rattan is easy to crack and brittle fracture when being actually woven and used, the storage time is not long, the rattan is easy to mildew and moth-eaten, the use quality is reduced, the service life is prolonged, and the use performance is enhanced by processing and modifying the rattan for people.

At present, a plurality of methods for rattan modification treatment are available, one of which is to perform grease impregnation treatment on the rattan, that is, to perform pressure impregnation on the rattan by using resin components, so that the rattan contains a certain amount of resin components, thereby improving the mechanical and corrosion-resistant qualities of the rattan. If the application number is: 201710845490.9 discloses a processing method for improving the dimensional stability of palm rattan, wherein the palm rattan is impregnated with modified urea-formaldehyde resin, and the effect of improving the mechanical quality and other characteristics of the palm rattan is achieved. However, the method has the problems that the impregnation amount is usually large, on one hand, raw material resources are wasted, on the other hand, the method is not beneficial to environmental protection, and along with the continuous improvement of the product performance requirements of people, the treatment method needs to be continuously improved.

Disclosure of Invention

The invention aims to provide a treatment method for improving the moisture resistance and the use stability of fibraurea recisa pierre aiming at the existing problems.

The invention is realized by the following technical scheme:

a treatment method for improving moisture resistance and use stability of fibraurea recisa pierre comprises the following steps:

(1) firstly, removing leaves and peels of fibraurea recisa pierre, then boiling the fibraurea recisa pierre in boiling water for 40-50 min, then taking the fibraurea recisa pierre out and immersing in acid liquor for soaking for 10-15 min, and finally taking the fibraurea recisa pierre out and washing with clear water for one time for later use;

(2) putting the fibraurea recisa pierre treated in the step (1) into a vacuum drying oven for drying treatment, and taking the fibraurea recisa pierre out for later use after 3-4 hours; the drying treatment is carried out, so that the fibraurea recisa pierre contains a small amount of water, the fibraurea recisa pierre can better absorb components in the composite treatment liquid in the next step, a humidity gradient is generated, and the processing treatment is convenient;

(3) immersing the fibraurea recisa pierre treated in the step (2) into the composite treatment liquid, immediately introducing alternating current into the composite treatment liquid after 1-1.5 min, stopping after 3-5 min, taking out the fibraurea recisa pierre, and washing the fibraurea recisa pierre with clear water for later use; the composite treatment liquid comprises the following components in parts by weight: 20-25 parts of sodium chloride, 10-15 parts of dodecyl trimethyl ammonium bromide, 5-8 parts of nano silver powder, 8-14 parts of fatty alcohol-polyoxyethylene ether and 500-600 parts of water; the sodium chloride added into the composite treatment liquid can play a role in improving the electric conduction capability of the solution, the nano silver powder can permeate into the surface layer of the fibraurea recisa pierre wood material, the nano silver powder has good electric conductivity, the surface activity of the nano silver powder is improved during alternating current treatment, the cell wall gap in the surface layer of the fibraurea recisa pierre wood is increased, the lignin is subjected to degradation and condensation reaction, the number of active groups is increased, the compatibility and the associativity between the active groups and high polymer components are improved, the treated nano silver powder is uniformly dispersed in the tissue gap of the surface layer of the fibraurea recisa pierre, so that anchor points are provided for the subsequent resin immersion, the binding strength is enhanced, and;

(4) placing the fibraurea recisa pierre treated in the step (3) into a constant temperature and humidity box, controlling the temperature of a dry bulb to be 32-35 ℃ and the relative humidity to be 70-75%, drying the fibraurea recisa pierre until the water content is 11-13%, and taking out for later use;

(5) putting the fibraurea recisa pierre treated in the step (4) into a vacuum pressure impregnation tank containing an impregnant, carrying out impregnation treatment on the fibraurea recisa pierre, and taking the fibraurea recisa pierre out for later use after 2-2.5 hours;

(6) and (4) placing the fibraurea recisa pierre treated in the step (5) into a constant-temperature constant-humidity box for humidifying and curing, and taking out the fibraurea recisa pierre after 1-2 hours.

Further, the acid solution in the step (1) is a hydrochloric acid solution with the mass fraction of 6-8%.

Further, the temperature in the vacuum drying oven is controlled to be 70-75 ℃ during the drying treatment in the step (2).

Further, the control current intensity is 25-30 mA/cm when the alternating current is processed in the step (3)²。

Further, the particle size of the nano silver powder in the step (3) is 10-30 nm.

Further, the impregnant in the step (5) comprises the following components in parts by weight: 90-100 parts of urea-formaldehyde resin and 5-8 parts of polyvinyl alcohol.

Further, the pressure in the vacuum pressure impregnation tank is kept at 2.5-3 MPa during the impregnation treatment in the step (5).

Further, the temperature in the constant temperature and humidity chamber is kept at 110-115 ℃ and the relative humidity is kept at 65-70% during the humidity conditioning and curing treatment in the step (6).

The fibraurea recisa pierre as a wood material is easy to crack and break in the process of processing, weaving and using, and is easy to mildew, moth, age and the like in rainy days or wet places, and the service life is obviously shortened. The prior resin impregnation treatment method has large usage amount of resin, which is about 50 percent of the weight of the rattan material, and the performance of the treated material can not reach the satisfaction of people in the prior art. The method for treating the fibraurea recisa pierre is specially improved, particularly, the fibraurea recisa pierre is soaked by preparing the composite treatment liquid, so that the activity and the reaction capability of a fibraurea recisa pierre surface material can be improved, the bonding strength between the fibraurea recisa pierre surface material and a high polymer component is improved, the effect of impregnation treatment is enhanced, the use performance of the material is improved, the use amount of resin is reduced, the cost is saved, and the environment is protected.

Compared with the prior art, the invention has the following advantages:

the treatment method has simple steps and reasonable process matching, is extremely suitable for treating the fibraurea recisa pierre, can obviously improve the moisture resistance, the mechanical strength and the use stability of the fibraurea recisa pierre, prolongs the service life of the fibraurea recisa pierre, and has extremely high market competitiveness.

Detailed Description