CN109593438B

CN109593438B - Preparation method of casting meteorite coating for glass decoration, composition and decorative glass

Info

Publication number: CN109593438B
Application number: CN201811516008.8A
Authority: CN
Inventors: 刘文革; 何伍南
Original assignee: Yingde Yajia Paint Co ltd
Current assignee: Yingde Yajia Paint Co ltd
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2021-01-26
Anticipated expiration: 2038-12-12
Also published as: CN109593438A

Abstract

The invention belongs to the field of special coatings, and discloses a preparation method of a casting meteorite coating for glass decoration, which comprises the following steps: the preparation method comprises the following steps of uniformly mixing an agent A containing epoxy resin and an agent B containing a modified alicyclic amine epoxy curing agent, then paving the mixture on one surface of glass to form a casting layer, and paving a film capable of shielding mixed gas generated by the reaction of the agent A and the agent B above the casting layer to ensure that the mixed gas forms hollow bodies with different depths on the surface of the casting layer under the compression of the film, and the invention also discloses a casting meteorite coating paint for glass decoration and decorative glass, wherein the method is simple to operate and low in manufacturing cost; the decoration is good.

Description

Preparation method of casting meteorite coating for glass decoration, composition and decorative glass

Technical Field

The invention relates to the field of special coatings, in particular to a preparation method of a casting meteorite coating for glass decoration, a composition and decorative glass.

Background

CN200810143949.1 discloses a method for making meteorite glass, which comprises the steps of uniformly coating the prepared meteorite glass paint on the surface of glass, spreading a crumpled PET (or PVC) film on the surface of the glass meteorite paint, enabling the glass meteorite paint to flow along with the wrinkles on the PET film, after natural solidification and drying, uniformly spraying 2-3 times of glass colored pearl paint and colored silver powder paint (or spraying 1 time of mirror silver reflective paint) on the surface of the meteorite paint with the wrinkles, roasting in an oven with the temperature of 60-70 ℃ for 40-60 minutes, and finally spraying black or white seal primer. Because the construction process different from the prior glass paint is adopted, in particular to the different preparation of the glass colored pearl paint, the colored silver powder paint and the mirror silver reflective paint and the more reasonable control of the roasting temperature and time, the meteorite paint and the glass can be combined more tightly, the brightness of the surface is higher, the refraction effect is better, the glaring degree is stronger, the meteorite paint layer can not fall off after long-term decoration application, and the brightness, the refraction effect, the glaring degree, the light transmittance, the permeability and the like can not be changed.

The scheme is that a film with texture is laid on a paint surface to form multi-angle anisotropic texture, and the method is a forming technology of 'simultaneous existence and difference, random setting art'.

However, the meteorite glass decorating material prepared by the scheme cannot obtain the decorating effect like the impact pits on the surface of the moon.

To solve the problem, an alternative solution is to provide bumps on the PET film (or PVC film) so that obvious pits are formed. But the process is complex and the cost is high.

The present solution is proposed based on the above problems.

Disclosure of Invention

The invention aims to provide a preparation method of a casting meteorite coating for glass decoration, a composition and decorative glass, the method is simple to operate and low in manufacturing cost, the decorative glass prepared by the method is different in size from the front of the glass, is like meteorites falling from the sky, and is more colorful, dazzling and dazzling; the decoration is good.

The specific scheme of the invention is as follows: a preparation method of a casting meteorite coating for glass decoration comprises the following steps: uniformly mixing an agent A containing epoxy resin and an agent B containing a modified alicyclic amine epoxy curing agent, then paving the mixture on one surface of glass to form a casting layer, and paving a film capable of shielding mixed gas generated by the reaction of the agent A and the agent B above the casting layer, so that the gas forms hollow bodies with different depths on the surface of the casting layer under the compression of the film.

In the above method for preparing cast merle coating for glass decoration, the reaction of the agent A and the agent B is exothermic reaction, and volatile mixed gas (water vapor, solvent volatile gas, free ammonia, amine volatile gas and the like) is generated in the reaction.

In the above-described method for preparing a cast merle coating for glass decoration, the film is kneaded and folded to form wrinkles and creases before being laid on the cast layer.

In the preparation method of the casting meteorite coating for glass decoration, mirror silver reflective paint, colored aluminum powder paint and colored pearlescent paint are sprayed on the surface of the casting layer after the casting layer is cured or before the casting layer is not completely cured.

Meanwhile, the invention also discloses a composition suitable for the casting layer for decorating glass, which consists of the agent A and the agent B;

the agent A comprises not less than 80 wt.% of epoxy resin corresponding to the total weight of the agent A;

the agent B comprises not less than 20 wt.% of modified amine epoxy curing agent corresponding to the total weight of the agent B.

In the composition of the above-mentioned casting layer for glass decoration, the agent A is composed of the following components:

epoxy 80-95 wt.%; (epoxy equivalent 184-.

8-10 wt.% of special weather-resistant polyester resin;

0.6-1 wt.% epoxy silane modifier;

light stabilizer 0.5-1.5 wt.%;

ultraviolet light absorber 0.4-0.6 wt.%;

0.1-0.3 wt.% of antifoam agent.

In the composition of the casting layer for glass decoration, the epoxy silane modifier is: A. PS-6040, PS-566 jujube Yangpo Teli chemical New materials Co; B. DM 022 denbang chemical new materials limited; C. any of dow corning silicone trade (shanghai) ltd;

the special weather-resistant polyester resin comprises the following components: A. MS-6875, Shenzhen, Shang Chen Cheng Chen Zhi Shen Zhi Shen Shi limited (or Hede chemical industry Co., Ltd.); B. MS-6813, Shenzhen Shang Tongxi science and technology development Limited (or Heidel chemical industry Limited) C, CM218-80, or Fushan Jingsha chemical industry Limited;

the light stabilizer is as follows: A. TINUVIN 292 Giraffe Chemicals, Inc., Guangzhou; B. UV292 Tianjin Lianlong New materials GmbH; C. 292 any one of Guangdong Shuddlan chemical industry Co., Ltd;

the ultraviolet light absorber is as follows: TINUVIN384-2 Guangzhou Jicai chemical industries, Inc.; B. 1130 Tianjin Lianlong New Material Ltd; C. 1130 any one of Guangdong Shuddlan chemical industry Co., Ltd;

the defoaming agent comprises: A. defom6800 modesty hamames chemical ltd; BYK-A530 Dongyang chemical Co., Ltd, Jiangmen (Germany Bike chemical); any one of BYK141 Jiangmen Togyang chemical Co., Ltd (Germany Bike chemical);

in the composition of the casting layer for decorating glass, the agent B specifically comprises:

50-70 wt.% modified cycloaliphatic amine epoxy curing agent;

20-40 wt.% modified amine epoxy hardener;

8-12 wt% of mixed solvent.

In the composition of the pouring layer for glass decoration, the modified alicyclic amine epoxy curing agent is: modified cycloaliphatic amine epoxy hardener HB1002 Hongbang of Guangzhou city, New materials Synthesis Co., Ltd; modified amine epoxy hardener (HB1029) Yixiang trade, Guangzhou;

the modified amine epoxy curing agent is as follows: modified cycloaliphatic amine is R2026 or R2265, supplier: rexzki chemical Co., Guangzhou city; modified cycloaliphatic amine BS3555 or BS3302, supplier: baisheng Fine chemistry, Fuzhou, Inc.;

the mixed solvent comprises: n-butanol: white water prevention: isopropyl alcohol: xylene 10:2:10:5 (weight ratio).

In addition, the invention also discloses decorative glass with a casting meteorite coating, which is prepared according to the method.

The invention has the beneficial effects that:

in the invention, the mixed gas of organic solvent vapor and partial water vapor is transferred to the surface layer of the casting body in an exothermic reaction, and is shielded by the PET/PVC film which can be wrinkled on the surface layer, the mixed gas reversely compresses the paint film which is not completely dried, and hollow bodies such as oval, round and vacuum bubble beads with staggered sizes and a polygonal and uneven surface which can be used for wrinkling the PET/PVC film on the surface layer for shaping are formed. And then, by utilizing the visual angle reflection principle, mirror silver reflective paint, colored aluminum powder paint and colored pearly paint are sprayed on the outer layers of the hollow bodies such as oval, round and vacuum bulbs which are staggered in size and the polygonal and uneven surfaces, after the materials are completely cured, the materials are seen from the front of the glass, are different in size, are like meteorites falling from the sky, but are more colorful and shining, people feel dazzling, and a crystal epoxy glass casting layer with the thickness of 1-5 cm is arranged in the front of the reflective mirror finish paint, the colored aluminum powder paint and the colored pearly paint and between the plate glass. Through the epoxy casting formula design and the innovation of the glass coating process, the casting meteorite coating for decorating and coating the plate glass is formed.

The method is simple and low in cost.

The B agent for casting meteorite coating for glass decoration disclosed by the invention is matched with a modified alicyclic amine epoxy curing agent and a modified amine epoxy curing agent, and the two curing agents are synergistic, so that the aims of quickly accelerating drying and improving glossiness and flexibility are fulfilled. At the same time, the two curing agents have the common advantages that: the paint is white and transparent, has good permeability, weather resistance, yellowing resistance and chemical resistance, moderate crosslinking reaction speed and good control of the production process.

The agent A is also skillful in selection, epoxy resin is adopted as a main material, the agent A can cooperate with two curing agents, the heat is quickly released to generate gas, the curing speed is moderate, the two curing agents are all indispensable, if the gas cannot be quickly generated, the gas cannot be gathered in a viscous system, the gas cannot rise below a shielding film layer to be gathered to form a hollow hole, and if the curing is too fast or too slow, the gas cannot be gathered, or the gas can be gathered to connect bubbles to form an overlarge hollow hole.

Meanwhile, the epoxy resin has small molecular weight and good fluidity, is convenient for casting and molding, and forms a hollow interweaving system; the crosslinking density is high, the hardness is high, and the water resistance and the chemical resistance are good; the molecular weight is small, the compatibility is good, the solid content is high, and a casting layer with high film thickness can be formed; high permeability, forming a high-water crystal ice permeable casting layer;

meanwhile, the amount of the modified alicyclic amine epoxy curing agent is larger, and the modified alicyclic amine epoxy curing agent can play a role in improving the gloss, fullness, flexibility, weather resistance, chemical resistance and the like when being used for curing and crosslinking.

Meanwhile, the special weather-resistant polyester resin provides flexibility, weather resistance and improved dielectric property. The light stabilizer and the ultraviolet absorber prevent resin oxidation, molecular chain breakage and molecular jump, improve the weather resistance of the product, and enable the weather resistance of the product to reach 10 years.

The defoaming agent has the functions of preventing steam bubbles at the bottom layer of casting from not separating from the casting layer and preventing too many small bubbles from being formed in the production and casting forming processes to influence the appearance ornamental value; the final coating showed many large bubbles and large hollows with almost no small beads.

The epoxy silane modifier is used for modifying the surface of the glass and providing a crosslinking anchoring base point; the adaptability of construction in climate change is improved; improve water resistance, chemical resistance and glass adhesion; it finally shows firm adhesion and good chemical resistance.

Drawings

FIG. 1 is an enlarged view of the surface of example 1 of the present invention;

FIG. 2 is an enlarged view of the surface of example 2 of the present invention;

fig. 3 is an enlarged view of the surface of example 3 of the present invention.

Detailed Description

The invention will now be further described with reference to the following examples, which are not to be construed as limiting the invention in any way, and any limited number of modifications which can be made within the scope of the claims of the invention are still within the scope of the claims of the invention.

Unless otherwise specified, the amounts used in the examples and comparative examples are in parts by weight or percentages by weight.

Example 1:

the coating method of the pouring meteorite coating for glass decoration comprises the following steps:

a, cutting flat glass by using a glass cutter, cleaning, putting the flat glass at the bottom of a box body for casting meteorite paint for standby, cutting a hard and foldable PET/PVC film which is larger than the manufactured glass, and kneading the film to form folds for standby;

B. the agent A and the agent B are prepared according to the following proportion: the agent B is 2:1, is filled in a thick transparent PE film bag, is slightly extruded until the agent A and the agent B are completely and uniformly mixed, and the generation amount of bubbles is controlled;

C. when the agent A and the agent B react to generate heat and increase the consistency, and the mixture with better fluidity is poured into a prefabricated box body, the bottom of the box body is flat glass for manufacturing meteorite paint carrier, and after the casting is finished, the prefabricated PET/PVC corrugated film in the step A is covered;

D. after 24 hours, trimming the redundant casting leftover materials of the dried meteorite paint blank to be smooth, spraying PU metallic paint or colored mirror silver paint on the back of the meteorite paint, sealing the PU metallic paint or the colored mirror silver paint by using double-component PU primer or epoxy primer, and drying to obtain the finished meteorite paint.

The formulation of agent A and agent B is shown in Table 1 below:

TABLE 1

Wherein, the trade name and the manufacturer of the special weather-resistant polyester resin are as follows: MS-6875, Shenzhen, Shang Chen Cheng Chen Zhi Shen Zhi Shen Shi limited (or Hede chemical industry Co., Ltd.);

the light stabilizer is: TINUVIN 292 Giraffe Chemicals, Inc., Guangzhou;

the ultraviolet light absorber is: TINUVIN384-2 Guangzhou Jicai chemical industries, Inc.;

epoxy silane modifier: z-6040 Dow Corning Silicone trade (Shanghai) Co., Ltd;

the composition of the mixed solvent is as follows: n-butanol: white water prevention: isopropyl alcohol: xylene in a weight ratio of: 10:2:10:5.

The preparation method of the agent A comprises the following steps:

adding E51 epoxy resin and special polyester resin into a dispersion tank;

secondly, adding the epoxy silane modifier, the defoaming agent, the light stabilizer, the ultraviolet absorber and the defoaming agent into a dispersion tank while stirring, and uniformly dispersing;

and thirdly, adjusting the viscosity, and filtering and packaging after the test is qualified.

The preparation method of the agent B comprises the following steps:

adding a modified alicyclic amine epoxy curing agent and a modified amine epoxy curing agent into a dispersion cylinder, and uniformly dispersing;

and secondly, adding the mixed solvent while stirring, dispersing uniformly, and obtaining the agent B after the test is qualified.

Example 2

The coating method of the casting meteorite coating for glass decoration comprises the following steps:

a, cutting flat glass by using a glass cutter, cleaning, putting the cut flat glass at the bottom of a box body for casting meteorite paint for standby, cutting a harder and foldable PET/PVC film which is slightly larger than the manufactured glass, and kneading the folded glass for standby;

B. the agent A and the agent B are prepared according to the following proportion: the agent B is 1:1, is filled in a thick transparent PE film bag, is slightly extruded until the agent A and the agent B are completely and uniformly mixed, and the generation amount of bubbles is controlled;

D. after 24 hours, trimming the redundant casting leftover materials of the dried meteorite paint blank to be smooth, spraying PU metallic paint or colored mirror surface color paint on the back of the meteorite paint, sealing the PU metallic paint or the colored mirror surface color paint by using double-component PU primer or epoxy primer, and drying to obtain the finished meteorite paint.

The formulation of agent A and agent B is shown in Table 2 below:

TABLE 2

Wherein, the trade name and the manufacturer of the special weather-resistant polyester resin are as follows: MS-6875 Shenzhen Shang Tongxi science and technology development Limited (or Hede chemical industry Limited)

The light stabilizer is: TINUVIN 292 Giraffe Chemicals, Inc., Guangzhou;

epoxy silane modifier: z-6040 Dow Corning Silicone trade (Shanghai) Co., Ltd;

The preparation method of the agent A comprises the following steps:

adding E51 epoxy resin and special polyester resin into a dispersion tank;

The preparation method of the agent B comprises the following steps:

Example 3

B. the agent A and the agent B are prepared according to the following proportion: the agent B is 1.5:1, is filled in a thick transparent PE film bag, is slightly extruded until the agent A and the agent B are completely and uniformly mixed, and the generation amount of bubbles is controlled;

The formulation of agent A and agent B is shown in Table 3 below:

TABLE 3

Wherein the types of the epoxy resin are as follows: e51 epoxy, epoxy equivalent 184-.

The trade name and the manufacturer of the special weather-resistant polyester resin are as follows: MS-6875 Shenzhen Shang Tongxi science and technology development Limited (or Hede chemical industry Limited)

The light stabilizer is: TINUVIN 292 Giraffe Chemicals, Inc., Guangzhou;

epoxy silane modifier: z-6040 Dow Corning Silicone trade (Shanghai) Co., Ltd;

The preparation method of the agent A comprises the following steps:

adding E51 epoxy resin and special polyester resin into a dispersion tank;

The preparation method of the agent B comprises the following steps:

Performance testing

The decorative glass prepared in example 1 was coated with the following properties shown in Table 4

TABLE 4

Detecting items	Detection method	Detection standard	The result of the detection	Remarks for note
					Hardness of	Pencil hardness tester	1H	2H
Adhesion force	Lattice method	100％	100％
					Water-resistant (tap water)	Soaking method (neutral water)	20 days	60 days
Acid resistance (hydrochloric acid)	Soaking (concentration 5%)	20 days	30 days
					Alkali resistance (sodium hydroxide)	Soaking (concentration 5%)	7 days	30 days
Service life	Naturally store	5 years old	For 10 years	Unconventional

FIGS. 1 to 3 are enlarged views of surface effects produced by different processes according to examples 1 to 3 of the present invention.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. A preparation method of a casting meteorite coating for glass decoration is characterized by comprising the following steps: uniformly mixing an agent A containing epoxy resin and an agent B containing a modified alicyclic amine epoxy curing agent, then paving the mixture on one surface of glass to form a casting layer, and paving a thin film capable of shielding mixed gas generated by the reaction of the agent A and the agent B above the glass to ensure that the mixed gas forms hollow bodies with different depths on the surface of the casting layer under the compression of the thin film; an agent A: the weight ratio of the agent B is 2:1

The agent A consists of the following components:

80 parts of E51 epoxy resin;

10 parts of special weather-resistant polyester resin;

0.6 part by weight of epoxy silane modifier;

2921.5 parts by weight of light stabilizer TINUVIN;

384-20.4 parts by weight of ultraviolet light absorber TINUVIN;

defoaming agent BYK 1410.3 weight portions;

the agent B consists of the following components:

50 parts of modified alicyclic amine epoxy curing agent;

40 parts of modified amine epoxy curing agent;

10 parts by weight of a mixed solvent;

the modified alicyclic amine epoxy curing agent is as follows: modified alicyclic amine epoxy hardener HB 1002;

the modified amine epoxy curing agent is as follows: modified amine epoxy hardener HB 1029;

the special weather-resistant polyester resin is MS-6875.

2. The method of claim 1, wherein the reaction between agent A and agent B is exothermic and produces a volatile gas mixture.

3. The method of claim 1, wherein the film is kneaded and folded to form folds and creases before being laid on the casting layer.

4. The method for preparing a cast merle coating for glass decoration according to claim 1, wherein a mirror-like reflective paint or a colored aluminum paint is sprayed on the surface of the casting layer after the casting layer is cured or before the casting layer is not completely cured.

5. Decorative glass with a cast merle coating, characterized in that it is obtained by a process according to any one of claims 1 to 4.