Antifouling and silencing hand feeling agent for leather and preparation method of antifouling and silencing hand feeling agent

Abstract

The invention belongs to the field of leather auxiliaries, and particularly relates to an antifouling and silencing hand feeling agent for leather and a preparation method. The preparation method comprises the following steps: mixing diallyl polyether, allyl methacrylate, a catalyst and hydrogen-terminated polydimethylmethylhydrosiloxane, and then heating for reaction to obtain an intermediate; and mixing the intermediate with iso-tridecanol polyoxyethylene ether 1305 and iso-tridecanol polyoxyethylene ether 1307, heating, stirring and dispersing, adding deionized water, and continuously stirring and dispersing. The structure of the antifouling and silencing hand feeling agent for leather does not contain fluorine, so that the use is not limited due to fluorine forbidding; besides, different from conventional hyperbranched polymerization, hydrosilylation hyperbranched polymerization is adopted in the scheme, so that the structural design is more flexible, the silicon crosslinking density is higher, better antifouling and silencing effects can be achieved, and the physical property of a coating system can be improved; the antifouling and silencing hand feeling agent for the leather is relatively high in hand feeling adjustment degree and relatively wide in application range.

Description

Technical Field

[0001] The invention belongs to the field of leather auxiliaries, and in particular relates to an antifouling and noise-absorbing feel agent for leather and a preparation method thereof. Background Art

[0002] At present, leather sofas, leather seats, leather bags, leather clothing and other products are easy to get dirty and make "squeaking" noises due to friction during use, which brings a lot of troubles to consumers during actual use. Antifouling and noise-reducing agents can reduce surface tension and bring a smooth feel in leather finishing, thereby playing an antifouling and noise-reducing effect. Therefore, the development of antifouling and noise-reducing agents is very necessary.

[0003] Currently, the feel agents on the market with anti-fouling and noise-absorbing effects usually have a fluorine-silicon structure. However, with the gradual ban on fluorine, the promotion of such products has also been restricted.

[0004] Therefore, it is necessary to redesign a new molecular structure to solve the existing technical problems, and based on this, the technical solution of the present invention is proposed. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present invention provides an antifouling and noise-absorbing feel agent for leather, which comprises a functional body of the antifouling and noise-absorbing feel agent for leather as shown in Formula I:

[0006]

[0007] Wherein, m = 49;

[0008] a=10, 11, 12, 13 or 14;

[0009] b = 4, 5, 6, 7, 8, 9 or 10;

[0010] c = 0, 1, 2, 3 or 4;

[0011] x=0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10;

[0012] y=0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

[0013] Based on the same technical concept, the present invention further provides a method for preparing an antifouling and noise-absorbing feel agent for leather, the preparation method comprising the following steps:

[0014] (1) mixing bisallyl polyether, allyl methacrylate, a catalyst, and hydrogen-terminated polydimethylmethylhydrogensiloxane, and then heating for reaction to obtain a functional main body of an antifouling and noise-absorbing feel agent for leather;

[0015] (2) Mixing the functional body of the antifouling and noise-absorbing hand feeling agent for leather with isotridecyl alcohol polyoxyethylene ether 1305 and isotridecyl alcohol polyoxyethylene ether 1307, and then heating and stirring to disperse, and then adding deionized water to continue stirring and dispersing, thereby obtaining the antifouling and noise-absorbing hand feeling agent for leather.

[0016] Preferably, in step (1), the mass ratio of bisallyl polyether, allyl methacrylate, catalyst and hydrogen-terminated polydimethylmethylhydrogensiloxane is 12:7.5:0.1:50.

[0017] Preferably, in step (1), the temperature of the heating reaction is 80° C., and the heating reaction time is 4 to 8 hours.

[0018] Preferably, the chemical reaction of step (1) is as follows:

[0019]

[0020] Where: m = 49; n = 20;

[0021] a=10, 11, 12, 13 or 14;

[0022] b = 4, 5, 6, 7, 8, 9 or 10;

[0023] c = 0, 1, 2, 3 or 4;

[0024] x=0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10;

[0025] y=0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

[0026] Preferably, in step (2), the mass ratio of the functional body of the antifouling and noise-absorbing feel agent for leather, isomeric tridecanol polyoxyethylene ether 1305, isomeric tridecanol polyoxyethylene ether 1307, and deionized water is 50:3:7:90.

[0027] Preferably, in step (2), the heating temperature is 40°C.

[0028] Preferably, in step (2), the stirring and dispersing speed is 500 r / min;

[0029] The stirring and dispersing time is 30 minutes, and the continuing stirring and dispersing time is 3 hours.

[0030] The beneficial effects of the present invention are:

[0031] 1. The antifouling and noise-absorbing feel agent for leather of the present invention does not contain fluorine and will not be restricted in use due to the prohibition of fluorine.

[0032] 2. Different from conventional hyperbranching, the present invention adopts silicon hydrogen addition hyperbranching, which is more flexible in structural design and has a higher silicon cross-linking density, can achieve better anti-fouling and noise reduction effects, and can improve the physical properties of the coating system. Specifically, the present invention adopts hydrogen-terminated polydimethylmethylhydrogensiloxane and bisallyl polyether, allyl methacrylate, etc. to carry out addition to prepare hyperbranched polyether-modified vinyl hydrogen-containing silicone oil, which has hydrophilicity and self-crosslinking properties, so that it has good compatibility and stability, and also has silicon density due to self-crosslinking, and thus has better anti-fouling and noise reduction effects.

[0033] 3. The antifouling and noise-absorbing feel agent for leather of the present invention has a relatively large adjustment degree of feel and a wider range of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a diagram showing the antifouling performance of Example 1.

[0036] Figure 2 This is a diagram showing the antifouling performance of Example 2.

[0037] Figure 3 This is a diagram showing the antifouling performance of Example 3.

[0038] Figure 4 This is a diagram showing the antifouling performance of Example 4.

[0039] Figure 5 This is a graph showing the antifouling performance of GF, a similar product on the market. DETAILED DESCRIPTION

[0040] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0041] Example 1

[0042] This embodiment provides a method for preparing an antifouling and noise-absorbing feel agent for leather, the preparation method comprising the following steps:

[0043] (1) 12 parts of bisallyl polyether (commercially available), 7.5 parts of allyl methacrylate (commercially available), 0.1 parts of Custer catalyst (commercially available), and 50 parts of hydrogen-terminated polydimethylmethylhydrogensiloxane RH-LHC-3 (commercially available) were added to a reactor in sequence, and the temperature was raised to 80° C. and kept for reaction for 6 hours to obtain an intermediate. The specific reaction process is as follows;

[0044]

[0045] Among them: m=49; n=20; a=12; b=6; c=2; x=6; y=0.

[0046] (2) 50 parts of the intermediate, 3 parts of isotridecyl alcohol polyoxyethylene ether 1305 (commercially available), and 7 parts of isotridecyl alcohol polyoxyethylene ether 1307 (commercially available) are added to a dispersion kettle in sequence, and then the temperature is raised to 40°C, and dispersed at 500 r / min for 30 minutes, and then 90 parts of water are slowly added and stirred and dispersed for 3 hours. After the dispersion is completed, the temperature is lowered to room temperature and the material is discharged to obtain a blue-light emulsion, that is, the antifouling and noise-absorbing hand feel agent for leather is obtained.

[0047] Among them, 1 portion = 10g, the same below.

[0048] Example 2

[0049] This embodiment provides a method for preparing an antifouling and noise-absorbing feel agent for leather, the preparation method comprising the following steps:

[0050] (1) 12 parts of bisallyl polyether (commercially available), 7.5 parts of allyl methacrylate (commercially available), 0.1 parts of Custer catalyst (commercially available), and 50 parts of hydrogen-terminated polydimethylmethylhydrogensiloxane RH-LHC-3 (commercially available) were added to a reactor in sequence, and the temperature was raised to 80° C. and kept for reaction for 6 hours to obtain an intermediate. The specific reaction process is as follows;

[0051]

[0052] Among them: m=49; n=20; a=12; b=6; c=2; x=8; y=0.

[0053] (2) 50 parts of the intermediate, 3 parts of isotridecyl alcohol polyoxyethylene ether 1305 (commercially available), and 7 parts of isotridecyl alcohol polyoxyethylene ether 1307 (commercially available) are added to a dispersion kettle in sequence, and then the temperature is raised to 40°C, and dispersed at 500 r / min for 30 minutes, and then 90 parts of water are slowly added and stirred and dispersed for 3 hours. After the dispersion is completed, the temperature is lowered to room temperature and the material is discharged to obtain a blue-light emulsion, that is, the antifouling and noise-absorbing hand feel agent for leather is obtained.

[0054] Example 3

[0055] This embodiment provides a method for preparing an antifouling and noise-absorbing feel agent for leather, the preparation method comprising the following steps:

[0056] (1) 12 parts of bisallyl polyether (commercially available), 7.5 parts of allyl methacrylate (commercially available), 0.1 parts of Custer catalyst (commercially available), and 50 parts of hydrogen-terminated polydimethylmethylhydrogensiloxane RH-LHC-3 (commercially available) were added to a reactor in sequence, and the temperature was raised to 80° C. and kept for reaction for 6 hours to obtain an intermediate. The specific reaction process is as follows;

[0057]

[0058] Among them: m=49; n=20; a=12; b=6; c=2; x=0; y=6.

[0059] (2) 50 parts of the intermediate, 3 parts of isotridecyl alcohol polyoxyethylene ether 1305 (commercially available), and 7 parts of isotridecyl alcohol polyoxyethylene ether 1307 (commercially available) are added to a dispersion kettle in sequence, and then the temperature is raised to 40°C, and dispersed at 500 r / min for 30 minutes, and then 90 parts of water are slowly added and stirred and dispersed for 3 hours. After the dispersion is completed, the temperature is lowered to room temperature and the material is discharged to obtain a blue-light emulsion, that is, the antifouling and noise-absorbing hand feel agent for leather is obtained.

[0060] Example 4

[0061] This embodiment provides a method for preparing an antifouling and noise-absorbing feel agent for leather, the preparation method comprising the following steps:

[0062] (1) 12 parts of bisallyl polyether (commercially available), 7.5 parts of allyl methacrylate (commercially available), 0.1 parts of Custer catalyst (commercially available), and 50 parts of hydrogen-terminated polydimethylmethylhydrogensiloxane RH-LHC-3 (commercially available) were added to a reactor in sequence, and the temperature was raised to 80° C. and kept for reaction for 6 hours to obtain an intermediate. The specific reaction process is as follows;

[0063]

[0064] Among them: m=49; n=20; a=12; b=6; c=2; x=0; y=8.

[0065] (2) 50 parts of the intermediate, 3 parts of isotridecyl alcohol polyoxyethylene ether 1305 (commercially available), and 7 parts of isotridecyl alcohol polyoxyethylene ether 1307 (commercially available) are added to a dispersion kettle in sequence, and then the temperature is raised to 40°C, and dispersed at 500 r / min for 30 minutes, and then 90 parts of water are slowly added and stirred and dispersed for 3 hours. After the dispersion is completed, the temperature is lowered to room temperature and the material is discharged to obtain a blue-light emulsion, that is, the antifouling and noise-absorbing hand feel agent for leather is obtained.

[0066] Verification Example

[0067] The antifouling and noise-reducing feel agent for leather obtained in Examples 1 to 4 and a similar commercial product (antifouling and noise-reducing feel agent GF) were added to the coating system, and then sprayed or rolled on genuine leather or artificial leather. After drying, the antifouling and noise-reducing properties of the denim were tested. The results are shown in Table 1.

[0068] Table 1

[0069]

[0070] From the results in Table 1, it can be seen that the main performance indicators of the antifouling and noise-absorbing feel agents for leather obtained in Examples 1 to 4 are all superior to those of commercially available products.

[0071] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A stain-proof and noise-absorbing feel agent for leather, characterized in that: The functional body of the antifouling and noise-absorbing feel agent for leather is included as shown in Formula I: Wherein, m = 49; a=10, 11, 12, 13 or 14; b = 4, 5, 6, 7, 8, 9 or 10; c = 0, 1, 2, 3 or 4; x=0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10; y=0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

2. The method for preparing the antifouling and noise-absorbing feel agent for leather according to claim 1, characterized in that: The preparation method comprises the following steps: (1) mixing bisallyl polyether, allyl methacrylate, a catalyst, and hydrogen-terminated polydimethylmethylhydrogensiloxane, and then heating for reaction to obtain a functional main body of an antifouling and noise-absorbing feel agent for leather; (2) Mixing the functional body of the antifouling and noise-absorbing hand feeling agent for leather with isotridecyl alcohol polyoxyethylene ether 1305 and isotridecyl alcohol polyoxyethylene ether 1307, and then heating and stirring to disperse, and then adding deionized water to continue stirring and dispersing, thereby obtaining the antifouling and noise-absorbing hand feeling agent for leather.

3. The preparation method according to claim 2, characterized in that: In step (1), the mass ratio of bisallyl polyether, allyl methacrylate, catalyst and hydrogen-terminated polydimethylmethylhydrogensiloxane is 12:7.5:0.1:

50.

4. The preparation method according to claim 2, characterized in that: In step (1), the temperature of the heating reaction is 80° C., and the heating reaction time is 4 to 8 hours.

5. The preparation method according to claim 2, characterized in that: In step (2), the mass ratio of the functional main body of the antifouling and noise-absorbing feel agent for leather, isomeric tridecanol polyoxyethylene ether 1305, isomeric tridecanol polyoxyethylene ether 1307, and deionized water is 50:3:7:

90.

6. The preparation method according to claim 2, characterized in that: In step (2), the heating temperature is 40°C.

7. The preparation method according to claim 2, characterized in that: In step (2), the stirring and dispersing speed is 500 r / min; The stirring and dispersing time is 30 minutes, and the continuing stirring and dispersing time is 3 hours.

Images