Group of	Pencil hardness (H)	Adhesion (grade)	Impact strength (kg. Cm)	High temperature resistance	Salt spray resistance (h)
						Example 1	6H	1	65	Does not crack or fall off	1320
Example 2	6H	1	67	Does not crack or fall off	1330
						Example 3	6H	1	69	Does not crack or fall off	1350
Example 4	5H	2	60	Does not crack or fall off	1250
						Example 5	5H	2	59	Does not crack or fall off	1270
Comparative example 1	4H	1	57	Does not crack or fall off	1240
						Comparative example 2	5H	1	54	Does not crack or fall off	1150
Comparative example 3	5H	1	58	The occurrence of cracks and falling-off	1260
						Comparative example 4	4H	2	54	Does not crack or fall off	1110
Comparative example 5	4H	1	51	Does not crack or fall off	1245
						Comparative example 6	4H	2	55	Does not crack or fall off	1220
Comparative example 7	4H	1	56	Does not crack or fall off	1240
						Comparative example 8	5H	1	59	Does not crack or fall off	1260
Comparative example 9	5H	1	58	Does not crack or fall off	1255
						Comparative example 10	5H	2	50	Does not crack or fall off	1215
Comparative example 11	5H	2	52	Does not crack or fall off	1235
						Comparative example 12	5H	2	53	Does not crack or fall off	1230
Comparative example 13	5H	1	48	Does not crack or fall off	1265
						Comparative example 14	3H	2	45	The occurrence of cracks and falling-off	1040
Comparative example 15	5H	1	56	The occurrence of cracks and falling-off	1105
						Comparative example 16	5H	2	49	The occurrence of cracks and falling-off	1255
Comparative example 17	3H	3	42	The occurrence of cracks and falling-off	1010
						Comparative example 18	5H	1	54	The occurrence of cracks and falling-off	1045
Comparative example 19	4H	2	51	The occurrence of cracks and falling-off	1070
						Comparative example 20	3H	3	47	The occurrence of cracks and falling-off	980

As can be seen from the above table, the wear-resistant and anti-erosion coating prepared in the embodiments 1 to 3 of the invention has the advantages of high hardness, good adhesion, high impact strength, good high temperature resistance and good salt spray resistance.

Test example 2

The abrasion-resistant and impact-resistant coatings prepared in examples 1 to 5 of the present invention and comparative examples 1 to 20 were subjected to abrasion resistance and impact resistance tests, and the results are shown in Table 2.

And (3) testing the scouring resistance: the scrub resistance of the coating was tested according to GB/T9266-2009.

And (3) wear resistance test: and carrying out a coating wear resistance test according to GB/T1768-2006.

TABLE 2

Group of	Abrasion resistance (g)	Resistance to washing (second time)
			Example 1	0.022	1700
Example 2	0.020	1780
			Example 3	0.019	1820
Example 4	0.056	1450
			Example 5	0.062	1420
Comparative example 1	0.082	1560
			Comparative example 2	0.085	1450
Comparative example 3	0.045	1550
			Comparative example 4	0.048	1520
Comparative example 5	0.055	1420
			Comparative example 6	0.079	1380
Comparative example 7	0.081	1570
			Comparative example 8	0.063	1610
Comparative example 9	0.061	1600
			Comparative example 10	0.042	1310
Comparative example 11	0.039	1360
			Comparative example 12	0.037	1370
Comparative example 13	0.040	1510
			Comparative example 14	0.098	1240
Comparative example 15	0.070	1340
			Comparative example 16	0.044	1310
Comparative example 17	0.145	1180
			Comparative example 18	0.087	1350
Comparative example 19	0.079	1400
			Comparative example 20	0.124	1210

As can be seen from the above table, the abrasion-resistant and impact-resistant coatings prepared in examples 1 to 3 of the present invention have better abrasion resistance and impact resistance.

Compared with the embodiment 3, the compound coupling agent of the embodiments 4 and 5 is a single silane coupling agent KH550 or an aluminate coupling agent DL-411. Comparative example 6 compared with example 3, without performing step S3, the hardness, mechanical properties, abrasion resistance, impact resistance, and adhesion were decreased. According to the invention, under the synergistic modification effect of the aluminate coupling agent and the silane coupling agent, two sides are respectively modified to obtain modified nanosheets, which can be better dispersed in a resin matrix, the compatibility of the inorganic nanomaterial in organic resin is improved, the problem of mechanical property reduction caused by agglomeration of the inorganic nanomaterial is greatly avoided, and compared with single coupling agent modification, the composite coupling agent modification has better performance.

Comparative examples 1, 2 and 3 in comparison with example 3, siO was not carried out in step S1₂ Layer, zrO₂ Layer or Al₂ O₃ The hardness and the wear resistance of the coating are obviously reduced in the comparative example 1, the wear resistance and the salt spray resistance of the coating are obviously reduced in the comparative example 2, and the high temperature resistance of the coating is obviously reduced in the comparative example 3. In comparative example 4, the Co ions were not doped in step S1, and the adhesion, hardness, and salt spray resistance were reduced as compared with example 3. Therefore, the invention adopts a plurality of nano particles for synergistic modification, and selects a plurality of nano materials as modified fillers to ensure that the performance of the composite material is improved greatly. Nano SiO₂ The nano Al has outstanding effect on improving the wear resistance of the composite material₂ O₃ Has outstanding performance in improving the mechanical property of the composite material and the fire resistance and high temperature resistance of the coating, and ZrO₂ The coating has the advantages of high hardness, high strength, high toughness, high wear resistance, chemical corrosion resistance and the like, the wear resistance and the corrosion resistance of the coating are obviously improved, meanwhile, the compactness and the fracture toughness of the coating are greatly improved by doping Co ions, and the bending strength is increased.

Comparative example 5 in comparison with example 3, al was obtained without ball milling in step S2₂ O₃ /ZrO₂ /SiO₂ The hollow nano-microsphere has reduced impact strength, hardness, scouring resistance and wear resistance. Comparative example 14 comparing with example 3, al without modified Co ion-doped in step S4₂ O₃ /ZrO₂ /SiO₂ The hardness, mechanical property, wear resistance, scouring resistance, high temperature resistance, salt spray resistance and adhesive force of the nano-sheets are obviously reduced. Firstly, polystyrene microspheres are sulfonated and modified by a sol-gel method and a template method, so that tetraethoxysilane sol is electrostatically adsorbed on the surface of the polystyrene microspheres, and sol-gel reaction is carried out on the surface of the polystyrene microspheres to form SiO₂ Layer, further surface sequentially forming ZrO₂ Layer and Al₂ O₃ Three-layer structure of the layers, preparing the Co ion-doped Al₂ O₃ /ZrO₂ /SiO₂ The SPS nano-microsphere is prepared by calcining to remove core SPS (sulfonated polystyrene), ball milling to obtain nanosheet with Al on upper surface₂ O₃ The inner surface is SiO₂ The prepared nano sheet has an energy transfer effect, can effectively prevent the crack diffusion of the resin matrix, and prevent the formation of destructive cracking, thereby ensuring good ductility and easy formability of the coating.

Comparative example 7 in comparison with example 3, no SiC and Si were added in step S4₃ N₄ The wear resistance and hardness are significantly reduced. Comparative examples 8 and 9 in comparison with example 3, no SiC or Si was added in step S4₃ N₄ Its wear resistance and hardness decrease. Comparative example 10 compared to example 3, no addition of MoS in step S4₂ And graphite, the adhesive force, the impact strength and the scouring resistance of which are obviously reduced. Comparative examples 11 and 12 compared to example 3, no addition of MoS in step S4₂ Or graphite, the adhesion, impact strength, and scouring resistance of which are reduced. In comparative example 13, the impact strength was reduced compared to example 3 without adding glass fiber in step S4. The invention adds SiC and Si₃ N₄ Graphite, glass fiber and MoS₂ Further has synergistic effect, and itMedium, nanometer SiC and Si₃ N₄ Can play a role in supporting load and improving wear resistance, obviously improves the hardness and wear resistance of the coating, and contains graphite and MoS₂ Acts as a lubricant, exfoliated graphite and MoS during rubbing₂ Is distributed on the friction interface as a third body, effectively isolates the rough contact of the friction pair interface, and the graphite and MoS of the interface₂ Has a certain self-lubricating effect, thereby greatly improving the lubricity among materials, and the glass fiber has obvious effect on increasing the tensile strength and the elongation at break of the coating. Under the synergistic effect of various materials, the heat resistance, high temperature resistance, fire resistance, wear resistance and scouring resistance of the prepared coating are obviously improved, the hardness is improved, and the mechanical property is obviously improved.

Comparative example 15 compared with example 3, without performing step S5, the high temperature resistance, salt spray resistance, abrasion resistance, and scouring resistance were reduced. The invention modifies the high-temperature porcelain powder by the silane coupling agent, the surface of the high-temperature porcelain powder is easy to be fully and uniformly mixed with the wear-resistant modifier and the silica sol, and the high-temperature porcelain powder is bonded by chemical bonds to form a stable organic-inorganic compound, and the high-temperature porcelain powder can obviously improve the comprehensive performance of the coating when added into the coating.

Compared with the example 3, in the comparative example 16, the step S6 is only 6 parts by weight of the modified high-temperature porcelain powder prepared in the step S5 and 15 parts by weight of the wear-resistant modifier prepared in the step S4 are uniformly mixed to obtain a mixture, and the high-temperature resistance, the salt mist resistance, the adhesive force, the impact strength and the scouring resistance of the mixture are reduced. According to the invention, the modified high-temperature porcelain powder and the wear-resistant modifier are mixed and added into the silica sol to obtain a soluble glue material, so that each part can be well bonded, the modified silicon resin in the methyl phenyl silicon resin, and the graphite and MoS with lubricating effect in the wear-resistant modifier are further added to the modified silicon resin₂ Can play the role of bridging and filling, and improve the flexibility of the-Si-O-Si-chain. In addition, co ion-doped Al is modified₂ O₃ /ZrO₂ /SiO₂ The nano-sheet is filled into the-Si-O-Si-network gap, so that the lubricating and heat conducting properties of the coating can be further improved.

Compared with the example 3, the step S6 of comparing 17 does not add wear-resistant modifier, hardness, mechanical property, wear resistance, impact strength, scouring resistance, high temperature resistance, salt fog resistance, adhesive force are obviously reduced, the wear-resistant modifier has better modifying function to the coating.

Compared with the example 3, the step S6 of comparing 18 has no modified high temperature porcelain powder, and the high temperature resistance, the salt spray resistance, the wear resistance and the scouring resistance are obviously reduced. The high-temperature porcelain powder is mainly obtained by crushing, ball-milling and screening porcelain materials sintered at the temperature of more than 1200 ℃, has various good performances of high temperature resistance, corrosion resistance, heat conduction, thermal shock resistance and the like, has the characteristics of high hardness, good wear resistance and the like, is very suitable for being applied to surface coatings of kilns or furnaces, has the advantages that under the action of friction pressure, the friction surface is decomposed in a micro-scale manner to form a thin air film, the sliding resistance between the friction surfaces is reduced, and the high-temperature porcelain powder has good performances of friction resistance, wear resistance and scouring resistance.

Comparative example 19 compared with example 3, the high temperature resistance, salt spray resistance, and scouring resistance of the phenolic resin used in step S7 were significantly reduced. The invention is silicon resin, si-O-Si bond in the silicon resin is broken at high temperature to generate SiO₂ The hardness of the coating is increased, so that the coating has good high-temperature resistance and is suitable for being applied to surface coatings of kilns or furnaces.

Compared with the embodiment 3, the comparative example 20 has the advantages that the components are simply mixed, all performance indexes are reduced, the special nanosheet structure can effectively avoid agglomeration, the energy transfer effect is realized, the crack diffusion of the resin matrix can be effectively prevented, the destructive cracking is prevented, and the good ductility and the formability of the coating are ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.