CN105583926A

CN105583926A - Timber modification agent and preparation method thereof

Info

Publication number: CN105583926A
Application number: CN201410560589.0A
Authority: CN
Inventors: 贾超; 周晓燕; 张慧芳
Original assignee: Individual
Current assignee: Yin Shaobo
Priority date: 2014-10-21
Filing date: 2014-10-21
Publication date: 2016-05-18
Anticipated expiration: 2034-10-21
Also published as: CN105583926B

Abstract

The invention relates to a timber modification agent and a preparation method thereof. According to the method, alkaline phenolic resin and sodium silicate are taken as main components of the modification agent, and can be taken as fillers in timber fiber of the modified timber, timber hardness can be increased; a styrene acrylic styrene acrylic emulsion can increase the flexibility of the timber; in a preparation phase, aluminium stearate and epoxidized fatty acid methyl ester are added so that the synthesis molecules in the modification agent has a trend to stabilization, so that the stability of the filler molecules can be increased; and sodium alkyl benzene sulfonate is taken as an osmotic agent, so that the modification agent can be fully introduced into the fiber tissue of the timber, a silane coupling agent is taken as a fixing agent, so that the filler is full in the timber. Production practice proves that the application of the timber modification agent is wide, and a finished product modification timber can be obtained by the preparation method of the present invention according to composition proportion adjusted by the different timbers.

Description

A kind of Wooden modifying liquid and preparation method

Technical field

The present invention relates to modifier and preparation method that a kind of Wooden modifying uses, especially a kind of Wooden modifying liquid.

Background technology

Its main purpose of Wooden modifying is for the durability of timber is improved. For this reason, naturally become the current industry will put forth effort the problem solving with regard to how making timber itself refuse water; More technical scheme is to do homework in the problem that improves modification liquid. Its benefit is that the timber after modification liquid soaks can reduce the fracture of sheet material, section bar, can improve microorganism, the tolerance of ant worm to its infringement. For example, Chinese patent CN101267921A disclosed " purposes of modified wood materials in article of manufacture " has mentioned and has utilized the modified wood materials that is distributed in the crosslinkable nitrogen compound in timber with cross-linked form how to make. " a kind of method of modifying of Masson pine timber " of Chinese patent CN8610228B bulletin mentioned include industrial alcohol, pentachlorophenol, polyvinyl butyral resin at interior rosin as the anticorrosion modifier of waterproofing wood.

Above patent documentation has disclosed the example of the aspect such as application, the modification of special appointment timber of modified wood materials.

But, in production practices, find, the timber of finished product, whether the filler of its fibrous inside evenly enriches, whether the pliability of timber after modification itself can increase substantially is to be still current major subjects, especially prepares and still has greatly writing space in the adjustment of its modifier qualitatively that improves improved wood.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of Wooden modifying liquid and preparation method, and nationality can make the filler of lumber fibre inside enrich and improve the pliability of timber with this liquid, can prepare the on-the-spot random modifier using with the method.

For this reason, the technical scheme that the present invention solves described problem is: a kind of Wooden modifying liquid, it is characterized in that, the main component of described liquid prescription is: alkalescent phenol resin, titanium dioxide, benzene emulsion, sodium metasilicate, NaOH, higher fatty acids sodium, aluminum stearate, epoxy aliphatic acid methyl ester, sodium alkyl benzene sulfonate, silane coupler, wherein, described liquid prescription proportioning is: alkalescent phenol resin 15%, titanium dioxide 8%, benzene emulsion 8%, sodium metasilicate 20%, NaOH 20%, higher fatty acids sodium 5%, aluminum stearate 7%, epoxy aliphatic acid methyl ester 8%, sodium alkyl benzene sulfonate 5%, silane coupler 4%.

Preferably, the aqueous solution that the sodium metasilicate in described prescription is 1:5.

Preferably, the aqueous solution that the NaOH in described prescription is 1:8.

Preferably, the pH value of the NaOH in described prescription is 11-13.

Preferably, in described prescription, each proportioning part is alkalescent phenol resin 19%, titanium dioxide 7%, benzene emulsion 7%, sodium metasilicate 17%, NaOH 20%, higher fatty acids sodium 5%, aluminum stearate 7%, epoxy aliphatic acid methyl ester 7%, sodium alkyl benzene sulfonate 5%, silane coupler 4%.

A kind of preparation method of Wooden modifying liquid, go up according to this proportional quantity of modification liquid, first aluminum stearate and epoxy aliphatic acid methyl ester are inserted to agitator is synthetic to stir, again above-mentioned alkalescent phenol resin, titanium dioxide, benzene emulsion, sodium metasilicate, higher fatty acids sodium, sodium alkyl benzene sulfonate, silane coupler raw material are inserted to container again, finally sodium hydroxide solution is inserted to container, the fully stirring of heating gradually mixes without precipitation the raw material in all prescriptions in container is heated stirring.

Preferably, the temperature of heating in described method is limited to 80-85 degree Celsius.

Preferably, the mixing time in described method, with the Temperature Setting of heating, is no less than 30 minutes.

Compared to existing technology, the good effect that the present invention has is, due to the main component that has adopted alkalescent phenol resin and sodium metasilicate as modification liquid, and serves as the filler of the lumber fibre inside of the timber that is modified, and can make timber obtain hardness and improve; Filling benzene emulsion can increase the pliability of timber; Thereby can making the synthetic molecules in liquid tend towards stability, the aluminum stearate that preparatory phase adds and epoxy aliphatic acid methyl ester improve the stability of filler molecule; And, can make liquid fully enter the fibr tissue inside of timber using sodium alkyl benzene sulfonate as bleeding agent, then can make the filler in timber enrich taking silane coupler as fixative. Production practices prove, the Wooden modifying liquid applicability the present invention relates to is wide, and visual different timber is adjusted in right amount prescription proportion and obtained finished product improved wood by preparation method of the present invention again.

Brief description of the drawings

Fig. 1 is the schematic flow sheet of the Wooden modifying liquid and preparation method thereof that the present invention relates to.

Detailed description of the invention

Referring to accompanying drawing 1, the present invention relates to a kind of Wooden modifying liquid, the main component of this liquid prescription is: alkalescent phenol resin, titanium dioxide, benzene emulsion, sodium metasilicate, NaOH, higher fatty acids sodium, aluminum stearate, epoxy aliphatic acid methyl ester, sodium alkyl benzene sulfonate, silane coupler. This scheme is based in production practices, the continuous debugging of modification liquid again and constantly being summed up and then to be determined.

First determine that alkalescent phenol resin and sodium metasilicate are that lumber fibre internal main is wanted filler, because sodium metasilicate can become fragile timber hardening, now filling benzene emulsion can increase the pliability of timber; And aluminum stearate after synthetic and its synthetic molecules of epoxy aliphatic acid methyl ester can serve as stabilizing agent and be used for increasing the stability of filler molecule; Sodium alkyl benzene sulfonate can be used as bleeding agent and joins in liquid, adds silane coupler can fix the filler in lumber fibre. For this reason, the present invention has the preferred embodiment of following modification liquid prescription:

Example 1, the proportioning of modification liquid prescription can be: alkalescent phenol resin 15%, titanium dioxide 8%, benzene emulsion 8%, sodium metasilicate 20%, NaOH 20%, higher fatty acids sodium 5%, aluminum stearate 7%, epoxy aliphatic acid methyl ester 8%, sodium alkyl benzene sulfonate 5%, silane coupler 4%. Wherein, the aqueous solution that the sodium metasilicate in prescription is 1:5, the aqueous solution that the NaOH in prescription is 1:8. This prescription versatility is better, in the time being implemented on Wooden modifying, as long as suitably adjust some parameter indexs in production process. These parameter indexs comprise temperature, pressure, time of fermentation vat, container tank etc.

Example 2, for different timber as willow, willow etc., especially the fast-growing tree that is suitable for being planted in the areas such as North China, Central China, northwest, the prescription proportioning of the Wooden modifying liquid the present invention relates to also can adopt such preferred version: alkalescent phenol resin 19%, titanium dioxide 7%, benzene emulsion 7%, sodium metasilicate 17%, NaOH 20%, higher fatty acids sodium 5%, aluminum stearate 7%, epoxy aliphatic acid methyl ester 7%, sodium alkyl benzene sulfonate 5%, silane coupler 4%. Sodium metasilicate is wherein still the aqueous solution of 1:5, and the NaOH in prescription is still the aqueous solution of 1:8.

According to above Wooden modifying liquid, the present invention also provides the method for preparing its prescription, first, go up according to this proportional quantity of modification liquid, first aluminum stearate and epoxy aliphatic acid methyl ester are inserted to agitator is synthetic to stir, again the raw material such as above-mentioned alkalescent phenol resin, titanium dioxide, benzene emulsion, sodium metasilicate, higher fatty acids sodium, sodium alkyl benzene sulfonate, silane coupler are inserted to container, finally sodium hydroxide solution is inserted to container, the fully stirring of heating gradually mixes without precipitation the raw material in all prescriptions in container is heated stirring.

Because benzene emulsion and sodium metasilicate can become thickness in the time running into NaOH, therefore heating in whipping process, mixing time will be grown to less can not be lower than 30 minutes; Meanwhile, the preparation condition that above-mentioned preparation process should be held is that the temperature in container is limited to 80-85 degree Celsius.

For example, modification through Wooden modifying liquid provided by the invention for the BAIMAOYANG lignin material of 5 years age of trees, the index of its practice assessment comprises that the comparation and assessment before and after modification have end face, diametric plane, the string surface hardness of timber, radially, tangential, parallel-to-grain compressive strength and volume contract with dry rate etc., the assessment indicator after modification all increases significantly; This literary composition repeats no longer one by one.

Claims

1. a Wooden modifying liquid, it is characterized in that, the main component of liquid prescription is: alkalescent phenol resin, titanium dioxide, benzene emulsion, sodium metasilicate, NaOH, higher fatty acids sodium, aluminum stearate, epoxy aliphatic acid methyl ester, sodium alkyl benzene sulfonate, silane coupler, wherein, the proportioning of described liquid prescription is: alkalescent phenol resin 15%, titanium dioxide 8%, benzene emulsion 8%, sodium metasilicate 20%, NaOH 20%, higher fatty acids sodium 5%, aluminum stearate 7%, epoxy aliphatic acid methyl ester 8%, sodium alkyl benzene sulfonate 5%, silane coupler 4%.

2. Wooden modifying liquid according to claim 1, it is characterized in that, described liquid prescription proportioning can also be: alkalescent phenol resin 19%, titanium dioxide 7%, benzene emulsion 7%, sodium metasilicate 17%, NaOH 20%, higher fatty acids sodium 5%, aluminum stearate 7%, epoxy aliphatic acid methyl ester 7%, sodium alkyl benzene sulfonate 5%, silane coupler 4%.

3. Wooden modifying liquid according to claim 1, is characterized in that, the aqueous solution that the sodium metasilicate in described prescription is 1:5.

4. Wooden modifying liquid according to claim 1, is characterized in that, the aqueous solution that the NaOH in described prescription is 1:8.

5. Wooden modifying liquid according to claim 1, is characterized in that, the pH value of the NaOH in described prescription is 11-13.

6. the preparation method of a Wooden modifying liquid, go up according to this proportional quantity of modification liquid, first aluminum stearate and epoxy aliphatic acid methyl ester are inserted to agitator is synthetic to stir, again above-mentioned alkalescent phenol resin, titanium dioxide, benzene emulsion, sodium metasilicate, higher fatty acids sodium, sodium alkyl benzene sulfonate, silane coupler raw material are inserted to container again, finally sodium hydroxide solution is inserted to container, the fully stirring of heating gradually mixes without precipitation the raw material in all prescriptions in container is heated stirring.

7. the preparation method of Wooden modifying liquid according to claim 6, is characterized in that, the temperature of heating in described method is limited to 80-85 degree Celsius.

8. the preparation method of Wooden modifying liquid according to claim 1, is characterized in that, the mixing time in described method, with the Temperature Setting of heating, is no less than 30 minutes.