CN114085598A

CN114085598A - Woodware grain developing agent and preparation method and use method thereof

Info

Publication number: CN114085598A
Application number: CN202210011368.2A
Authority: CN
Inventors: 陈红; 张金海; 郑振杰
Original assignee: SICHUAN CARPOLY PAINT CO Ltd; CARPOLY CHEMICAL GROUP CO LTD
Current assignee: SICHUAN CARPOLY PAINT CO Ltd; CARPOLY CHEMICAL GROUP CO LTD
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-02-25
Anticipated expiration: 2042-01-06
Also published as: CN114085598B

Abstract

The invention discloses a woodware grain developing agent and a preparation method and a use method thereof, the woodware grain developing agent comprises an agent A and an agent B which are mixed according to the mass ratio of 9-11:1 when in use; the agent A comprises the following components in percentage by mass: 8-10% of self-drying small molecular weight nano alkyd resin, 75-80% of ketone solvent, 10-15% of ether solvent and 2-5% of water; the agent B comprises the following components in percentage by mass: 40-50% of curing agent, 0.5-1.5% of moisture absorbent and 49-59% of solvent; the wood grain developing agent has the functions of cracking the wood surface layer conduit, highlighting wood grains and sealing the wood surface layer for solidifying and slightly opening the conduit, so that the slightly opened wood conduit is shaped, the wood grains are kept, the wood surface layer is beautified, the coating effect is more three-dimensional and high-end, the wood grain developing agent does not change the wood color, the color can be changed towards any given color, the coating is more extensive and convenient, the effect is more controllable, the wood surface layer can be sealed simultaneously, and the wood and the coating effect are effectively protected.

Description

Woodware grain developing agent and preparation method and use method thereof

Technical Field

The invention relates to the technical field of woodware, in particular to a woodware grain developing agent for developing grains on woodware, and a preparation method and a use method thereof.

Background

At present, the woodware on the market shows grains mainly as follows: firstly, oxidizing and carbonizing a wood conduit by a strong acid or strong base grain-developing main agent to carbonize or oxidize and dehydrate the wood conduit so as to deepen wood grains and highlight the layering sense of the wood grains; the grain developing agent is used in a wider range, is only suitable for high-grade wood such as black-bone chicken wood and the like, is not suitable for common cork wood such as poplar, pine and the like, does not have the effects of grain opening and duct cracking, cannot enable the duct of the common cork wood to be highlighted, only deepens the color of the cork wood, is uncontrollable in grain developing color of different cork wood, and cannot well enable the color of the cork wood to be changed towards the set color due to different oxidation and carbonization degrees and different highlighted colors; secondly, or the color of the conduit is deepened by a bottom coloring mode to highlight lines; the two modes are simple to color the conduit, can not crack the cork conduit, and can enable the wood without wood layer grains to obviously show wood grains and the conduit layers to obviously show the conduit layers, so that the erasable coloring effect can not be achieved, and the effects of hardening the wood conduit and sealing the surface layer of the wood are not achieved.

Disclosure of Invention

The invention aims at the problems, and firstly provides a woodware grain developing agent which has the functions of cracking a conduit on the surface layer of wood, developing wood grains and sealing the solidified slightly-opened conduit on the surface layer of the wood, so that the slightly-opened conduit of the wood is shaped, the wood grains are kept, the surface layer of the wood is beautified, the coating effect is higher, the color of the wood is not changed by the grain developing agent of the woodware, the color can be changed towards any set color, the coating is more convenient and controllable, and the surface layer of the wood can be sealed, so that the wood and the coating effect are effectively protected.

Secondly, the preparation method of the woodware grain developing agent is simple, easy to operate and easy to be reliable, and ensures the stability of the performance of the woodware grain developing agent.

Finally, the use method of the woodware grain-developing agent is provided, and the use method is simple and easy to operate, uniform in spraying and good in effect.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a woodware grain developing agent comprises an agent A and an agent B which are mixed according to the mass ratio of 9-11:1 when in use;

the agent A comprises the following components in percentage by mass:

the agent B comprises the following components in percentage by mass:

70 to 80 percent of curing agent

0.5 to 1.5 percent of moisture absorbent

20-30% of solvent.

In the present invention,

1. the ketone solvent can effectively burst the guide pipe without causing the wood to swell and the water content to rise.

2. The addition of water can effectively assist the ketone solvent to slightly open and enlarge the guide pipe, the guide pipe is deeper and the layers are better, but excessive water can increase the wood rib expansion and the water content, so that the defects of bulging of a paint film sunken guide pipe, whitening of the paint film and incompatibility of the paint after later coating are caused, and the addition of water is particularly important, and the addition of water is preferably 2-5%.

3. The self-drying small molecular weight nano alkyd resin has the characteristics of quick drying, high hardness, self drying, low molecular weight, high permeability, no degradation, good compatibility with ketone solvents and the like, can be used for curing and sealing a film-forming object, and achieves the effects of curing a wood surface layer, sealing the color of a duct, curing a slightly opened duct and the like; the mass percent of the wood base board is set to be 8-10%, so that the effects of fixing color, hardening slightly opened conduits, sealing the surface layer of the wood and the like are ensured; but also can not block the slightly opened guide pipe, so that the coating effect is obvious.

4. The curing agent is a secondary film-forming curing substance to strengthen the protection of hardening of the slightly-opened conduit, sealing of the surface layer of the wood and fixation of the color of the appearing grain, and the mass percent of the curing agent is set to be 40-50 percent to provide a harder cured coating, so that the wood with the slightly-opened appearing grain is permanently stored in a three-dimensional manner, and the appearing grain effect is effectively ensured.

5. The mass ratio of the agent A to the agent B is adjusted to 9-11:1, namely, the performances of effective curing of the coating, hardening of the slightly opened conduit, curing of coloring of the appearing line, improvement of the effect of sealing the surface layer of the wood by the coating, no blockage of the slightly opened conduit and the like are ensured.

Further defined, the ketone solvent is acetone.

Further limited, the self-drying small molecular weight nano-scale alkyd resin is soybean oil modified alkyd resin with hydroxyl value of 130mg KOH/g and solid content of 65-75%, and the self-drying small molecular weight nano-scale alkyd resin has molecular weight of less than 5000, such as XC9852 odor-free alkyd resin.

Further limited, the ethereal solvent is ethylene glycol butyl ether.

Further defined, the curing agent comprises an aromatic isocyanate and/or a trimer curing agent, the aromatic isocyanate is preferably Corsia L-75, the trimer curing agent is preferably Corsia L-1351 and a self-produced 50% adduct.

Further defined, the solvent in the agent B is a lipid solvent.

Further defined, the lipid solvent is butyl acetate.

Further defined, the moisture absorbent is p-toluoyl isocyanate.

The invention has the beneficial effects that: the woodware grain developing agent disclosed by the invention has the functions of developing grain and slightly opening the guide pipe, coloring the guide pipe, hardening the surface layer of the wood, solidifying the slightly opening guide pipe and making the guide pipe layer be obvious, thereby enabling simple wood to be high-grade and high-grade wood to be high-grade; the wood paint has the advantages that the wood paint not only has the effect of highlighting grains by the conventional grain developing agent, but also can achieve the effect of coloring the conventional bottom, and can also have the effect of sealing the surface layer of the wood.

A preparation method of a woodware grain developing agent comprises the following steps:

sequentially adding self-drying small molecular weight nano alkyd resin, ether solvent and water into the ketone solvent, and uniformly stirring at 500r/min to obtain an agent A;

under the condition of oxygen-free drying, the moisture absorbent and the solvent are sequentially added into the curing agent for stirring uniformly at 600r/min, and the agent B can be obtained.

In the invention, the anaerobic drying condition can be realized by introducing dry nitrogen all the time in the mixing process; the preparation method has the advantages of wide required conditions, easy operation and control, and the obtained woodware grain developing agent has stable performance.

A use method of a woodware grain developing agent comprises the following steps:

mixing the agent A and the agent B according to the mass ratio of 9-11:1, and spraying the mixture on the surface of a workpiece; the mass ratio of the agent A to the agent B is preferably 10: 1; according to the actual need, whether the coloring agent is added or not is specifically as follows: the colorant is added into the agent A and then mixed with the agent B, the colorant can be selected from high-transparency nanometer color paste and/or color concentrate, the high-transparency nanometer color paste is selected from AWU-441 (red), AWU-442 (yellow) and AWU-443 (black), and the color concentrate is selected from MG201 (black), MG202 (red) and MG203 (yellow).

Drawings

FIG. 1 is an interface diagram of the wood texturing agent sprayed on the poplar material in example 1;

FIG. 2 is a drawing of an interface after processing of the poplar material in example 1.

Detailed Description

Example 1

The A1 agent comprises the following components in percentage by mass as shown in Table 1.

TABLE 1

Preparation of A1 agent

S1, adding a ketone solvent and an ether solvent into a dispersion cylinder, and stirring at a low speed (300-;

s2, adding self-drying small molecular weight nano alkyd resin into a dispersion cylinder under low-speed stirring, and then stirring at low speed for 5 min;

s3, adding water into the dispersion tank under low-speed stirring, then stirring at low speed for 5min, and then inspecting to obtain the A1 agent after being qualified.

The B1 agent comprises the following components in percentage by mass as shown in Table 2.

Preparation of agent B1

Firstly, ensuring that the water content of the solvent is lower than 0.05 wt%, putting butyl acetate and p-toluoyl isocyanate into a stirring kettle protected by nitrogen gas, stirring for 5min at a medium and low speed (600 r/min), then sequentially adding 50% of the adduct, Colesine L-75 and Colesine L-1351, stirring for 10min at a medium and low speed, and then sending to be qualified to obtain the B1 agent.

The embodiment takes the woodware grain developing agent on the poplar material as an example, and comprises the following steps:

s1, polishing and flattening a poplar material by using 320# abrasive paper, and removing defects such as burrs and the like;

s2, adjusting the A1 agent to a required color by using high-transmittance nano color paste (the high-transmittance nano color paste comprises AWU-441 (red), AWU-442 (yellow) and AWU-443 (black));

s3, adding the B1 agent according to the mass ratio of the A1 agent to the B1 agent of 10:1, uniformly stirring, uniformly spraying the mixture on the Yangxi wood workpiece, and naturally drying for more than 2 hours (the effect is shown in figure 1);

s4, wiping the material sprayed with the grain-appearing treasure with glaze (MG201 (black), MG202 (red) and MG203 (yellow)), coloring the slightly opened guide pipe again, improving the three-dimensional layering of the workpiece, and drying for more than 2h (a circulating air drying room);

s5, spraying two PU real gold primers (ZJD7701) on the workpiece subjected to the wiping and glaze coating, then performing surface painting (DJD011), and finally spraying PU finish paint to obtain the coating effect shown in the figure 2.

Example 2

The A2 agent comprises the following components in percentage by mass as shown in Table 3.

TABLE 3

Preparation of A2 agent

s3, adding water into the dispersion tank under low-speed stirring, then stirring at low speed for 5min, and then inspecting to obtain the A2 agent after being qualified.

The B2 agent comprises the following components in percentage by mass as shown in Table 4.

TABLE 4

Components	Specific substance	Weight percent (wt.%) of
			Solvent(s)	Acetic acid butyl ester	24
Moisture absorbent	P-toluoyl isocyanate	0.5
			Curing agent	50% addition product	35
Curing agent	Science ofAdhesive L-75 (75% solid content)	15.5
			Curing agent	Scientific wound L-1351	25

Preparation of agent B2

Firstly, ensuring that the water content of the solvent is lower than 0.05 wt%, putting butyl acetate and p-toluoyl isocyanate into a stirring kettle protected by nitrogen gas, stirring for 5min at a medium and low speed (600 r/min), then sequentially adding 50% of the adduct, Colesine L-75 and Colesine L-1351, stirring for 10min at a medium and low speed, and then sending to be qualified to obtain the B2 agent.

s2, adjusting the A2 agent to a required color by using high-transmittance nano color paste (the high-transmittance nano color paste comprises AWU-441 (red), AWU-442 (yellow) and AWU-443 (black));

s4, adding the B2 agent according to the mass ratio of the A2 agent to the B2 agent of 10:1, uniformly stirring, uniformly spraying the mixture on the poplar workpiece, and naturally drying for more than 2 hours;

s5, wiping the material sprayed with the grain-appearing treasure with glaze (MG201 (black), MG202 (red) and MG203 (yellow)), coloring the slightly opened guide pipe again, improving the three-dimensional layering of the workpiece, and drying for more than 2h (a circulating air drying room);

s6, spraying two PU real gold primers (ZJD7701) on the workpiece subjected to the wiping and coating of glaze, then performing surface painting (DJD011), and finally spraying PU finishing paint.

Example 3

The A3 agent comprises the following components in percentage by mass as shown in Table 5.

TABLE 5

Preparation of A3 agent

s3, adding water into the dispersion tank under low-speed stirring, then stirring at low speed for 5min, and then inspecting to obtain the A3 agent after being qualified.

The agent B3 comprises the following components in percentage by mass as shown in Table 6.

TABLE 6

Components	Specific substance	Weight percent (wt.%) of
			Solvent(s)	Acetic acid butyl ester	24
Moisture absorbent	P-toluoyl isocyanate	0.8
			Curing agent	50% addition product	30
Curing agent	Scientific wound L-75	22.2
			Curing agent	Scientific wound L-1351	23

Preparation of agent B3

Firstly, ensuring that the water content of the solvent is lower than 0.05 wt%, putting butyl acetate and p-toluoyl isocyanate into a stirring kettle protected by nitrogen gas, stirring for 5min at a medium and low speed (600 r/min), then sequentially adding 50% of the adduct, Colesine L-75 and Colesine L-1351, stirring for 10min at a medium and low speed, and then sending to be qualified to obtain the B3 agent.

s2, adjusting the A3 agent to a required color by using high-transmittance nano color paste (the high-transmittance nano color paste comprises AWU-441 (red), AWU-442 (yellow) and AWU-443 (black));

s4, adding the B3 agent according to the mass ratio of the A3 agent to the B3 agent of 10:1, uniformly stirring, uniformly spraying the mixture on the poplar workpiece, and naturally drying for more than 2 hours;

Example 4

The A4 agent comprises the following components in percentage by mass as shown in Table 7.

TABLE 7

Preparation of A4 agent

s3, adding water into the dispersion tank under low-speed stirring, then stirring at low speed for 5min, and then inspecting to obtain the A4 agent after being qualified.

The agent B4 comprises the following components in percentage by mass as shown in Table 8.

TABLE 8

Components	Specific substance	Weight percent (wt.%) of
			Solvent(s)	Acetic acid butyl ester	25
Moisture absorbent	P-toluoyl isocyanate	1.5
			Curing agent	50% addition product	25
Curing agent	Scientific wound L-75	45.5
			Curing agent	Scientific wound L-1351	23

Preparation of agent B4

Firstly, ensuring that the water content of the solvent is lower than 0.05 wt%, putting butyl acetate and p-toluoyl isocyanate into a stirring kettle protected by nitrogen gas, stirring for 5min at a medium and low speed (600 r/min), then sequentially adding 50% of the adduct, Colesine L-75 and Colesine L-1351, stirring for 10min at a medium and low speed, and then sending to be qualified to obtain the B4 agent.

s2, adjusting the A4 agent to a required color by using high-transmittance nano color paste (the high-transmittance nano color paste comprises AWU-441 (red), AWU-442 (yellow) and AWU-443 (black));

s4, adding the B4 agent according to the mass ratio of the A4 agent to the B4 agent of 10:1, uniformly stirring, uniformly spraying the mixture on the poplar workpiece, and naturally drying for more than 2 hours;

Example 5

The A5 agent comprises the following components in percentage by mass as shown in Table 9.

TABLE 9

Preparation of A5 agent

s3, adding water into the dispersion tank under low-speed stirring, then stirring at low speed for 5min, and then inspecting to obtain the A5 agent after being qualified.

The agent B5 comprises the following components in percentage by mass as shown in Table 10.

Watch 10

Components	Specific substance	Weight percent (wt.%) of
			Solvent(s)	Acetic acid butyl ester	24.5
Moisture absorbent	P-toluoyl isocyanate	0.5
			Curing agent	50% addition product	35
Curing agent	Scientific wound L-75	15
			Curing agent	Scientific wound L-1351	25

Preparation of agent B5

Firstly, ensuring that the water content of the solvent is lower than 0.05 wt%, putting butyl acetate and p-toluoyl isocyanate into a stirring kettle protected by nitrogen gas, stirring for 5min at a medium and low speed (600 r/min), then sequentially adding 50% of the adduct, Colesine L-75 and Colesine L-1351, stirring for 10min at a medium and low speed, and then sending to be qualified to obtain the B5 agent.

s2, adjusting the A5 agent to a required color by using high-transmittance nano color paste (the high-transmittance nano color paste comprises AWU-441 (red), AWU-442 (yellow) and AWU-443 (black));

s4, adding the B5 agent according to the mass ratio of the A5 agent to the B5 agent of 10:1, uniformly stirring, uniformly spraying the mixture on the poplar workpiece, and naturally drying for more than 2 hours;

Comparative example 1

Compared with example 3, the comparative example is different in that: the raw material of A3 agent lacks self-drying small molecular weight nano-scale alkyd resin and lacks the corresponding steps, and the rest is the same.

Comparative example 2

Compared with example 3, the comparative example is different in that: the amount of water added to the starting material of A3 was 10% by weight, and the same applies for the absence of the corresponding step.

Comparative example 3

Compared with example 3, the comparative example is different in that: the amount of water added to the starting material of A3 was 0.8 wt%, and the same applies for the absence of the corresponding step.

Comparative example 4

Compared with example 3, the comparative example is different in that: the raw materials of the B3 dose lack the scientific wound L-75 and the corresponding steps, and the rest is the same.

Comparative example 5

Compared with example 3, the comparative example is different in that: the raw materials of the B3 dose lack the scientific wound L-13515 and the corresponding steps, and the rest is the same.

Comparative example 6

Compared with example 3, the comparative example is different in that: the raw materials of the B3 dose lack the scientific wound L-75 and scientific wound L-1351 and the corresponding steps, and the rest is the same.

Comparative example 7

Compared with example 3, the comparative example is different in that: the mass ratio of the A3 agent to the B3 agent was adjusted to 7:1, and the rest was the same.

Comparative example 8

Compared with example 3, the comparative example is different in that: the mass ratio of the A3 agent to the B3 agent was adjusted to 14:1, and the rest was the same.

Comparative example 9

Compared with example 3, the comparative example is different in that: the resin content in the A3 dose (XC9852) was added to 15%, the rest being the same.

The woodware grain developing agents prepared in examples 1 to 5 and comparative examples 1 to 9 were subjected to performance tests, and the results are shown in table 11.

TABLE 11

As can be seen from table 11, the addition of alkyd resin provides the most basic requirements for curing and sealing the surface layer of wood with slightly opened vessels, and the best addition amount of alkyd resin is 8 wt% -10 wt%, if too much (comparative example 9, the slightly opened vessels are blocked by too much resin), the slightly opened vessels are blocked, and if too little, the capacity of sealing the surface layer of wood is insufficient, and the hardening and non-opening vessels are not enough; secondly, the addition of 2-5% of water effectively improves the slight opening degree of the guide pipes, does not cause the wood to expand the ribs, increases the water content of the wood, causes the wood to expand the ribs too much, and has insufficient cracking of the guide pipes and poor layering; the addition of the curing agent of the component B effectively ensures the curing and crosslinking density of the alkyd resin, the compactness and curing hardness of a paint film and the curing effect of a sealed wood and the hardening of a slightly opened guide pipe, the cost is effectively reduced by adding a self-produced 50% addition product, the effective use time and the surface drying speed are effectively controlled by adjusting L-75 and L-1351 to ensure the coating efficiency, and the optimal addition proportion is 22.2% (L-75) and 23% (L-1351) respectively; adjusting A: the proportion of B, namely, the necessary amount of crosslinking is met, the crosslinking compactness is ensured, meanwhile, insufficient crosslinking or excessive crosslinking is not generated, the hardness of a paint film is not enough, the sealing property is generated, the hardening conduit is reduced, and the final effect is influenced by the influence of later coating construction, and the optimal mass proportion of A to B is 10 to 1 through testing.

Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The woodware grain developing agent is characterized by comprising an agent A and an agent B which are mixed according to the mass ratio of 9-11:1 when in use;

the agent A comprises the following components in percentage by mass:

the agent B comprises the following components in percentage by mass:

70 to 80 percent of curing agent

0.5 to 1.5 percent of moisture absorbent

20-30% of solvent.

2. The woodware graining agent according to claim 1, wherein said ketone solvent is acetone.

3. The woodware graining agent according to claim 1, wherein said self-drying small molecular weight nano-scale alkyd resin is a soybean oil modified alkyd resin having a hydroxyl value of 130mg KOH/g and a solid content of 65% -75%.

4. The woodware graining agent according to claim 1, wherein said ether solvent is ethylene glycol monobutyl ether.

5. The woodware graining agent according to claim 1, wherein said curing agent comprises aromatic isocyanate and/or trimer curing agent.

6. The woodware graining agent according to any one of claims 1 to 5, wherein the solvent in said agent B is a lipid solvent.

7. The woodware graining agent according to claim 6, wherein said lipid solvent is butyl acetate.

8. The woodware graining agent according to claim 1, wherein said moisture absorbent is p-toluoylisocyanate.

9. A method for preparing a woodware graining agent according to any one of claims 1 to 8, comprising the steps of:

10. A method of using a woodware graining agent according to any one of claims 1 to 8, comprising the steps of:

the agent A and the agent B are mixed according to the mass ratio of 9-11:1 and then sprayed on the surface of a workpiece.