Glass alkali washing resin and preparation method thereof

Abstract

The invention relates to the field of glass panel resin, in particular to glass alkali wash resin and a preparation method thereof. The glass alkali wash resin provided by the invention is prepared from the following components in parts by mass: 90-100 parts of polyhydric alcohols which are selected from one or more of CTP244, GE-220 and UH-200; 25 to 35 parts of polyisocyanate; 13 to 25 parts of hydroxyl acrylate; 8-15 parts of an anhydride compound, wherein the anhydride compound is selected from one or more of acetic anhydride and trimellitic anhydride; 0.1 to 1.0 part of a catalyst; and 0.2 to 2.0 parts of a polymerization inhibitor. According to the invention, the SP value difference and transparency of a curing system are improved through the matching of specific polyhydric alcohols and anhydride compounds; in addition, the film forming and drying performance of a curing system is improved by introducing polyhydric alcohol; and finally, good surface dryness and transparency of the obtained glass alkali wash resin are realized.

Description

Technical Field

[0001] The invention relates to the field of glass panel resins, in particular to a glass alkali-washing resin and a preparation method thereof. Background Art

[0002] As an important process in the deep processing of glass cutting, glass alkali-washing resin plays an important role in the processing of glass panels and display screens. The properties required by glass alkali-washing resin mainly include: the surface dryness of the UV mask, the transparency of the film after film formation, and the ease of film removal in alkaline water after film formation.

[0003] The alkali-washed resins currently on the market are prone to problems such as paint film shrinkage, reduced transparency, and poor surface drying after being cured by ultraviolet light. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a glass alkali-washing resin and a preparation method thereof. The glass alkali-washing resin provided by the present invention has good surface dryness and transparency.

[0005] The present invention provides a glass alkali-washing resin, which is obtained from the following components in parts by mass:

[0006] 90-100 parts of polyol; the polyol is selected from one or more of CTP244, GE-220, and UH-200;

[0007] 25-35 parts of polyisocyanate;

[0008] 13-25 parts of hydroxy acrylate;

[0009] 8 to 15 parts of an acid anhydride compound; the acid anhydride compound is selected from one or more of acetic anhydride and trimellitic anhydride;

[0010] 0.1~1.0 parts of catalyst;

[0011] 0.2~2.0 parts of inhibitor.

[0012] The glass alkali washing resin provided by the present invention comprises 90-100 parts of polyol and 8-15 parts of anhydride compound, preferably 94-100 parts of polyol and 9-12 parts of anhydride compound. The polyol of the present invention is selected from one or more of CTP244, GE-220 and UH-200; wherein the CTP244 is a polyester polyol, the GE-220 is a polyether polyol, and the UH-200 is a polycarbonate polyol. The anhydride compound of the present invention is selected from one or more of acetic anhydride and trimellitic anhydride.

[0013] The inventors of the present application creatively discovered that by matching specific polyols and anhydride compounds, the chemical structure of the polyester part in the polyester ester system was adjusted, and the SP value difference and transparency of the curing system were improved by adjusting the spatial position, spatial structure and distance of functional groups; in addition, the introduction of polyols, especially the introduction of polyether polyols, improved the film-forming performance and drying performance of the curing system; ultimately, the obtained glass alkali-washed resin achieved good surface dryness and transparency.

[0014] The glass alkali washing resin provided by the present invention also includes 25 to 35 parts of polyisocyanate, preferably 28 to 35 parts. The polyisocyanate of the present invention is selected from one or more of toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, and 4,4-diphenylmethane diisocyanate.

[0015] The glass alkali washing resin provided by the present invention also includes 13 to 25 parts of hydroxy acrylate, preferably 23 to 25 parts. The hydroxy acrylate of the present invention is selected from one or more of HEMA (hydroxyethyl methacrylate), HPA (‌2-hydroxypropyl acrylate), and HEA (hydroxyethyl acrylate). The present invention adjusts the alkali solubility of the system by introducing hydroxyl groups.

[0016] The glass alkali-washed resin provided by the present invention also includes 0.1 to 1.0 parts of a catalyst, preferably 0.1 to 0.5 parts. The catalyst of the present invention belongs to a catalyst for resin synthesis, which is selected from DBTDL. The glass alkali-washed resin provided by the present invention also includes 0.2 to 2.0 parts of an inhibitor, preferably 0.2 to 1.0 parts. The inhibitor of the present invention is selected from one or more of MEHQ, TBC, and DPPH.

[0017] The glass alkali-washing resin provided by the present invention is preferably obtained from the following components: 94 to 100 parts of polyol; 28 to 35 parts of polyisocyanate; 23 to 25 parts of hydroxy acrylate; 9 to 12 parts of anhydride compound; 0.1 to 0.5 parts of a catalyst; and 0.2 to 1.0 parts of a polymerization inhibitor.

[0018] In certain embodiments of the present invention, the glass alkali-washing resin provided by the present invention is obtained from the following components: 99 to 100 parts of CTP244; 28 to 29 parts of polyisocyanate; 23 to 25 parts of hydroxy acrylate; 9 to 11 parts of trimellitic anhydride; 0.1 to 0.2 parts of catalyst; and 0.4 to 0.6 parts of inhibitor.

[0019] In certain embodiments of the present invention, the glass alkali-washing resin provided by the present invention is obtained from the following components: 97 to 99 parts of CTP244; 34 to 35 parts of polyisocyanate; 23 to 25 parts of hydroxy acrylate; 9 to 11 parts of trimellitic anhydride; 0.1 to 0.2 parts of catalyst; and 0.4 to 0.6 parts of inhibitor.

[0020] In certain embodiments of the present invention, the glass alkali-washing resin provided by the present invention is obtained from the following components: 94 to 95 parts of CTP244; 33 to 34 parts of polyisocyanate; 23 to 25 parts of hydroxy acrylate; 10 to 12 parts of trimellitic anhydride; 0.1 to 0.2 parts of catalyst; and 0.4 to 0.6 parts of inhibitor.

[0021] In some embodiments of the present invention, the glass alkali-washing resin provided by the present invention is obtained from the following components: 99-100 parts of CTP244; 28-29 parts of IPDI+; 23-25 ​​parts of HEMA; 9-11 parts of trimellitic anhydride; 0.1-0.2 parts of DBTDL; and 0.4-0.6 parts of MEHQ.

[0022] In other embodiments of the present invention, the glass alkali-washing resin provided by the present invention is obtained from the following components: 97-99 parts of CTP244; 34-35 parts of IPDI+; 23-25 ​​parts of HEMA; 9-11 parts of trimellitic anhydride; 0.1-0.2 parts of DBTDL; and 0.4-0.6 parts of MEHQ.

[0023] In other embodiments of the present invention, the glass alkali-washing resin provided by the present invention is obtained from the following components: 94-95 parts of CTP244; 33-34 parts of IPDI+; 23-25 ​​parts of HEMA; 10-12 parts of trimellitic anhydride; 0.1-0.2 parts of DBTDL; and 0.4-0.6 parts of MEHQ.

[0024] The present invention also provides a method for preparing the glass alkali-washing resin described in any of the above technical solutions, comprising the following steps: reacting polyol, polyisocyanate, hydroxy acrylate, catalyst, inhibitor and anhydride compound to obtain the glass alkali-washing resin.

[0025] Specifically, polyol, polyisocyanate, hydroxy acrylate, catalyst and inhibitor are reacted at 80°C~100°C for 4 h~6 h, and then anhydride compound is added to the reacted material to continue reacting at 80°C~100°C until the viscosity of the reaction material is stable to obtain the glass alkali-washed resin.

[0026] The present invention provides a glass alkali-washing resin and a preparation method thereof. The glass alkali-washing resin provided by the present invention is obtained from the following components in parts by mass: 90 to 100 parts of a polyol, wherein the polyol is selected from one or more of CTP244, GE-220, and UH-200; 25 to 35 parts of a polyisocyanate; 13 to 25 parts of a hydroxy acrylate; 8 to 15 parts of an anhydride compound, wherein the anhydride compound is selected from one or more of acetic anhydride and trimellitic anhydride; 0.1 to 1.0 parts of a catalyst; and 0.2 to 2.0 parts of a polymerization inhibitor. The present invention adjusts the chemical structure of the polyester part in the polyester ester system by matching specific polyols and anhydride compounds, and improves the SP value difference and transparency of the curing system by adjusting the spatial position, spatial structure, and distance of functional groups; in addition, the introduction of polyols, especially the introduction of polyether polyols, improves the film-forming performance and drying performance of the curing system; and finally achieves good surface dryness and transparency of the obtained glass alkali-washing resin. DETAILED DESCRIPTION

[0027] The present invention discloses a glass alkali-washing resin and a preparation method thereof. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to achieve the same. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the method and application of this article without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0028] The present invention will be further described below in conjunction with embodiments:

[0029] Embodiment 1~3

[0030] The glass alkali-washed resins of Examples 1 to 3 were prepared according to the formula shown in Table 1 and the following steps:

[0031] Step A) Add polyol, polyisocyanate, hydroxy acrylate, inhibitor and catalyst into a flask at room temperature, gradually raise the temperature to 90 degrees, and react for 5 hours. During the reaction, measure the viscosity and NCO index. When NCO is stable, proceed to the next step of reaction.

[0032] Step B) Add anhydride compound and heat to 90 degrees to react until the viscosity stabilizes.

[0033] Table 1

[0034]

[0035] The surface drying performance, transparency, adhesion performance, alkali-removal time, alkali-removal state and scratch resistance of the glass alkali-washing resins of Examples 1 to 3 were tested respectively. The results are shown in Table 2.

[0036] Table 2

[0037]

[0038] As can be seen from Table 2, the transparency effects of the glass alkali-washing resins of Examples 1 and 3 are better, and the scratch resistance of the glass alkali-washing resin of Example 2 is better.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A glass alkali washing resin, characterized in that: In parts by mass, it is obtained from the following components: 90-100 parts of polyol; the polyol is selected from one or more of CTP244, GE-220, and UH-200; 25-35 parts of polyisocyanate; 13-25 parts of hydroxy acrylate; 8 to 15 parts of an acid anhydride compound; the acid anhydride compound is selected from one or more of acetic anhydride and trimellitic anhydride; 0.1~1.0 parts of catalyst; 0.2~2.0 parts of inhibitor.

2. The glass alkali-washing resin according to claim 1, characterized in that: The polyisocyanate is selected from one or more of toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, and 4,4-diphenylmethane diisocyanate.

3. The glass alkali-washing resin according to claim 1, characterized in that: The hydroxy acrylate is selected from one or more of HEMA, HPA and HEA.

4. The glass alkali-washing resin according to claim 1, characterized in that: The catalyst is selected from DBTDL.

5. The glass alkali-washing resin according to claim 1, characterized in that: The inhibitor is selected from one or more of MEHQ, TBC and DPPH.

6. The glass alkali-washing resin according to any one of claims 1 to 5, characterized in that: Obtained from the following components: 94-100 parts of polyol; 28-35 parts of polyisocyanate; 23-25 ​​parts of hydroxy acrylate; 9 to 12 parts of an acid anhydride compound; 0.1~0.5 parts of catalyst; 0.2~1.0 parts of inhibitor.

7. The glass alkali-washing resin according to claim 6, characterized in that: Obtained from the following components: 99-100 parts of CTP244; 28-29 parts of polyisocyanate; 23-25 ​​parts of hydroxy acrylate; 9-11 parts of trimellitic anhydride; 0.1-0.2 parts of catalyst; 0.4~0.6 parts of inhibitor; Alternatively, it is obtained from the following components: 97-99 parts of CTP244; 34-35 parts of polyisocyanate; 23-25 ​​parts of hydroxy acrylate; 9-11 parts of trimellitic anhydride; 0.1-0.2 parts of catalyst; 0.4~0.6 parts of inhibitor; Alternatively, it is obtained from the following components: 94-95 parts of CTP244; 33-34 parts of polyisocyanate; 23-25 ​​parts of hydroxy acrylate; 10-12 parts of trimellitic anhydride; 0.1-0.2 parts of catalyst; 0.4~0.6 parts of inhibitor.

8. The glass alkali-washing resin according to claim 7, characterized in that: Obtained from the following components: 99~100 parts of CTP244; 28~29 parts of IPDI+; 23~25 parts of HEMA; 9~11 parts of trimellitic anhydride; 0.1~0.2 parts of DBTDL; 0.4~0.6 parts of MEHQ; Alternatively, it is obtained from the following components: 97~99 parts of CTP244; 34~35 parts of IPDI+; 23~25 parts of HEMA; 9~11 parts of trimellitic anhydride; 0.1~0.2 parts of DBTDL; 0.4~0.6 parts of MEHQ; Alternatively, it is obtained from the following components: 94~95 parts of CTP244; 33~34 parts of IPDI+; 23~25 parts of HEMA; 10~12 parts of trimellitic anhydride; 0.1~0.2 parts of DBTDL; 0.4~0.6 parts of MEHQ.

9. The method for preparing the glass alkali-washing resin according to any one of claims 1 to 8, characterized in that: The following steps are involved: The glass alkali-washing resin is obtained by reacting polyol, polyisocyanate, hydroxy acrylate, catalyst, polymerization inhibitor and acid anhydride compound.

10. The method for preparing glass alkali-washing resin according to claim 9, characterized in that: The specific steps include: The polyol, polyisocyanate, hydroxy acrylate, catalyst and inhibitor are reacted at 80°C-100°C for 4 h-6 h, and then an acid anhydride compound is added to the reacted material to continue reacting at 80°C-100°C until the viscosity of the reaction material is stable, thereby obtaining the glass alkali-washed resin.

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