CN112210335A - Flexible yellowing-resistant porcelain beautifying adhesive - Google Patents
Flexible yellowing-resistant porcelain beautifying adhesive Download PDFInfo
- Publication number
- CN112210335A CN112210335A CN202010963872.3A CN202010963872A CN112210335A CN 112210335 A CN112210335 A CN 112210335A CN 202010963872 A CN202010963872 A CN 202010963872A CN 112210335 A CN112210335 A CN 112210335A
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- Prior art keywords
- yellowing
- flexible
- component
- resistant
- beautiful porcelain
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/02—Polyureas
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a flexible yellowing-resistant porcelain beautifying adhesive which comprises the following components in percentage by weight: the component A comprises: 65% -90% of aspartic acid resin; 0 to 0.6 percent of foam breaking agent; 2% -0.8% of dispersant; 0% -2% of ultraviolet absorbent; 3% -8% of fumed silica; 0% -2% of expanded microspheres; 2 to 25 percent of pigment and filler; 0% -3% of dehydrating agent; and B component: 90-95% of isocyanate curing agent; 3% -8% of fumed silica; 0% -3% of dehydrating agent; wherein, when in use, the component A and the component B are mixed according to a predetermined proportion and then are used; the invention has good yellowing resistance, can be used indoors and outdoors, has good flexibility, large temperature difference, is not easy to fall off, has high low-temperature curing speed, and does not influence the winter construction.
Description
Technical Field
The scheme belongs to the field of chemical materials, and particularly relates to the field of application of architectural chemical materials.
Background
Epoxy porcelain-beautifying glue is the most popular indoor joint sealing material in the market at present, but because of the existence of aromatic ring structures in components such as bisphenol A type epoxy resin and the like used in the epoxy porcelain-beautifying glue, the yellowing resistance of the product has certain defects, and the phenomena of yellowing and the like can occur 1 to 2 years after construction, so that the modification effect of the porcelain-beautifying glue is seriously influenced; secondly, due to the problems of components, the use scene of the epoxy porcelain adhesive is limited to indoor and is not suitable for outdoor construction, and if the epoxy porcelain adhesive is used outdoors, the problems of pulverization, color change and the like are easy to occur after the epoxy porcelain adhesive is constructed on a surface layer part; thirdly, the flexibility of the existing epoxy porcelain enamel adhesive is low, and the epoxy porcelain enamel adhesive is easy to fall off after being used for a long time at a position with a large cold-hot alternating temperature difference; finally, the epoxy porcelain enamel glue has low curing speed under low temperature conditions, the construction efficiency in winter is low, the curing speed in summer is inconsistent with that in winter, and constructors can easily master the progress of inaccurate construction.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the flexible yellowing-resistant porcelain adhesive which has good yellowing resistance, can be used indoors and outdoors, has good flexibility, large temperature difference, is not easy to fall off, has high low-temperature curing speed, and does not influence winter construction.
The flexible yellowing-resistant beautiful porcelain adhesive comprises the following components in percentage by weight:
the component A comprises:
and B component:
90-95% of isocyanate curing agent;
3% -8% of fumed silica;
0% -3% of dehydrating agent;
wherein, when in use, the component A and the component B are mixed according to a predetermined proportion and then are used.
Further, the aspartic acid resin is aliphatic aspartic acid ester.
The aliphatic aspartic acid ester contains as a main component at least one of N, N ' - (methylenebis-4, 1-cyclohexanediyl) bis-1, 1',4,4' -tetraethyl ester, N ' - (methylenebis-4, 1-cyclohexanediyl) tetraaspartate ester, N ' - (dicyclohexylmethane-4, 4' -bis) tetraaspartate ester, and N, N ' - (methylenebis-4, 1-cyclohexanediyl) tetraaspartate ester.
Specifically, the aspartic acid resin accounts for 69-84% by weight.
Further, the expanded microspheres are expanded polymer microspheres.
Specifically, the particle size range of the foaming polymer microspheres is 10-100 μm.
Specifically, the expanded microsphere is 0.6-0.9% by weight.
As an improvement of the above technical solution, further, the fumed silica is hydrophobic silica; the foam breaker is a foam breaking polymer solution.
Further, the ultraviolet absorbent is BASF Tinuvin 1130 or BASF Tinuvin 5151; the dispersant is a mosaic copolymer containing basic pigment affinity groups.
Further, the pigment filler is one or a mixture of titanium dioxide, pearl powder, glitter powder and barium sulfate; the dehydrating agent is p-toluenesulfonyl isocyanate or a 4A type molecular sieve; the isocyanate curing agent is aliphatic polyisocyanate and isophorone diamine isocyanate.
Compared with the prior art, the scheme of the invention has the advantages that: the polyurea material is widely applied to the fields of waterproofing, adhesives and the like, has excellent performances such as excellent tensile strength, bonding strength, high wear resistance and the like, has excellent weather resistance, and meets the performance requirements of ceramic tile joint filling porcelain cement; the inventor finds out through thousands of experiments that the polyurea compound obtained by the reaction of the preferred aliphatic aspartic acid ester resin and the aliphatic or alicyclic isocyanate curing agent has excellent yellowing resistance due to the extremely small unsaturated structure, can keep no color change for a long time no matter the polyurea compound is used in indoor or outdoor construction, and ensures the modification effect of the porcelain beautifying glue; meanwhile, the polyurea compound obtained by the reaction has good physical properties such as tensile strength, flexibility, aging resistance and the like and thermal stability due to the fact that the polyurea compound is reacted to form carbamido, can be used for a long time at 150 ℃, can bear short-time thermal impact at 350 ℃, ensures that the strength and the flexibility are maintained after long-time outdoor use, and is not easy to break and fall off under large temperature difference; and the polyurea compound has high curing speed under the low-temperature condition, thereby greatly improving the construction efficiency in winter.
Detailed Description
The invention discloses a flexible yellowing-resistant porcelain beautifying adhesive which comprises the following components in percentage by weight:
the component A comprises:
and B component:
90-95% of isocyanate curing agent;
3% -8% of fumed silica;
0% -3% of dehydrating agent;
the component A and the component B are respectively arranged in a double-pipe rubber pipe, a mixed rubber pipe is arranged at the head of the rubber pipe, the component A and the component B are extruded out of the respective rubber pipes by a special rubber gun according to the volume ratio of 1:1, and the components enter a rubber nozzle to be fully mixed and react, and the obtained reactant can be used for construction.
Wherein the volume activity equivalent of the aspartic acid ester and the aliphatic isocyanate is 1:1-1: 1.4;
the main component of the aspartate resin is aspartate which is an active resin containing amino functional groups and can react with-NCO groups of isocyanate to form a polyurea structure, and the obtained polyurea high polymer material has excellent yellowing resistance, aging resistance, flexibility and other physical properties. Because the active group of the aspartic acid ester is amino and the reaction activity of the aspartic acid ester and-NCO is higher than that of hydroxyl, the serious foaming phenomenon caused by more moisture can not occur under the condition of higher humidity, the reaction speed is higher, and the quick cleaning after construction can be realized.
The expanded microsphere is a thermoplastic hollow polymer microsphere, which consists of a thermoplastic polymer shell and liquid alkane gas sealed in the shell. The hollow spheres have an average diameter ranging from 10 to 50 μm and a true density of 20 to 130kg/m 3. When heated, the gas pressure within the shell increases and the thermoplastic outer shell softens, causing a significant increase in expanded microsphere volume. When cooled, the expanded microsphere shell hardens again and the volume is fixed. Expanded microspheres that have been expanded are used in the present product.
Specifically, the expanded microspheres are foamed polymer microspheres with certain elasticity, the particle size range is 10-100 mu m, and in the system, the proportion of the aspartic acid ester and the isocyanate curing agent can be effectively adjusted when the AB component is mixed;
isocyanates are a generic term for the various esters of isocyanic acid. When classified by the number of-NCO groups, include monoisocyanates R-N ═ C ═ O and diisocyanates O ═ C ═ N-R-N ═ C ═ O, and polyisocyanates and the like;
the main components of the isocyanate curing agent are aliphatic polyisocyanate (the content range is 97.8-99.8%), isophorone diamine isocyanate (the content range is 0-2%) and hexamethylene-1, 6-diisocyanate (the content range is 0-0.2%).
The aspartic acid resin is aliphatic aspartic acid ester, and the main component of the aspartic acid resin is at least one of N, N ' - (methylenedi-4, 1-cyclohexylenediyl) bi-1, 1',4,4' -tetraethyl ester, N ' - (methylenedi-4, 1-cyclohexanediyl) tetraaspartate ester, N ' - (dicyclohexylmethane-4, 4' -di) tetraaspartate ester and N, N ' - (methylenedi-4, 1-cyclohexanediyl) tetraaspartate ester.
Further, the fumed silica is a hydrophobic silica; the foam breaking agent is a foam breaking polymer solution;
the ultraviolet absorbent is BASF Tinuvin 1130 or BASF Tinuvin 5151; the dispersant is a mosaic copolymer containing basic pigment affinity groups;
the pigment filler is one or a mixture of more of titanium dioxide, pearl powder, glitter powder and barium sulfate, and the dehydrating agent is p-toluenesulfonyl isocyanate or a 4A type molecular sieve; the curing agent is aliphatic polyisocyanate and isophorone diamine isocyanate.
Embodiments 1 to 4 of the invention are compositions of a flexible yellowing-resistant porcelain enamel.
Specifically, Table 1 shows the components and weight ratio of the flexible yellowing-resistant porcelain enamel glue in examples 1-4
TABLE 1
To better examine the improvements of the present invention over the prior art and the specific data of these improvements in various aspects, examples 1-4 of the present invention and conventional epoxy enamel were examined for yellowing resistance, aging resistance, flexibility, elongation at break, and trowelable time.
The specific detection method comprises the following steps:
(1) the yellowing resistant project is carried out by referring to GB/T23983-;
(2) the aging-resistant project adopts the method A in GB/T23987-;
(3) the flexibility is detected by folding a 2mm paint film in half;
(4) the elongation at break is carried out according to GB/T2567-;
(5) the shoveling time represents the time for removing the residual glue after the product construction, the testing method comprises the following steps of gluing the product under standard conditions (the temperature is 23 +/-2 ℃ and the humidity is 50 +/-10%), constructing the product to the surface of the vitrified tile, the gluing length is 10cm, cutting 20cm into 10 sections at the distance of 2cm after gluing is completed, placing the product in a low-temperature box (the temperature is 5 +/-2 ℃ and the humidity is 50 +/-10%) within 10min, trying to tear adhesive tapes on the surface of the vitrified tile every 2h, and recording the time when the product can be easily torn from the surface of the vitrified tile and the surface of the vitrified tile has no residue, namely the shoveling time.
The results are shown in Table 2
| Detecting items | Example 1 | Examples2 | Example 3 | Example 4 | Traditional epoxy porcelain beautifying glue |
| Yellowing resistance (color difference/delta E) | 6.0 | 5.8 | 4.1 | 4.4 | 38.9 |
| Resistance to ageing (powdering) | Powdering grade 0 | Powdering grade 0 | Powdering grade 0 | Powdering grade 0 | Powdering grade 3 |
| Flexibility | By passing | By passing | By passing | By passing | Fracture of |
| Elongation at break/% | 100 | 95 | 80 | 70 | 10 |
| Glue shoveling time/h (5 ℃ C.) | 6h | 6h | 6h | 6h | 18h |
TABLE 2
It can be seen from table 2 that examples 1 to 4 using the technical solution of the present invention have excellent performance in various testing items compared to the conventional epoxy enamel glue. Specifically, the yellowing resistance difference values of the embodiments 1 to 4 are improved by several orders of magnitude compared with the traditional epoxy enamel glue, which fully shows that the yellowing resistance of the epoxy enamel glue is obviously improved compared with the prior art; on the aging-resistant project, the aging resistance of the embodiments 1 to 4 is greatly improved, and the requirements of outdoor construction are well met; the flexibility and the elongation at break are greatly improved, and the beautiful porcelain glue can well deal with larger temperature difference change and is not easy to break and fall off.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and a person skilled in the art can make modifications or equivalent substitutions for the specific embodiments of the present invention, such as adjustment of formula parameter values, with reference to the above embodiments, and any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are within the scope of the claims of the present invention as filed in the application.
Claims (10)
1. The flexible yellowing-resistant beautiful porcelain adhesive is characterized in that: comprises the following components in percentage by weight:
the component A comprises:
and B component:
90-95% of isocyanate curing agent;
3% -8% of fumed silica;
0% -3% of dehydrating agent;
wherein, when in use, the component A and the component B are mixed according to a predetermined proportion and then are used.
2. The flexible yellowing-resistant beautiful porcelain adhesive according to claim 1, which is characterized in that: the aspartic acid resin is aliphatic aspartic acid ester.
3. The flexible yellowing-resistant beautiful porcelain adhesive according to claim 2, which is characterized in that: the aliphatic aspartic acid ester comprises at least one of N, N ' - (methylenebis-4, 1-cyclohexanediyl) bis-1, 1',4,4' -tetraethyl ester, N ' - (methylenebis-4, 1-cyclohexanediyl) tetraaspartate ester, N ' - (dicyclohexylmethane-4, 4' -bis) tetraaspartate ester, and N, N ' - (methylenebis-4, 1-cyclohexanediyl) tetraaspartate ester as a main component.
4. The flexible yellowing-resistant beautiful porcelain adhesive according to claim 3, which is characterized in that: the aspartic acid resin accounts for 69-84% by weight.
5. The flexible yellowing-resistant beautiful porcelain adhesive according to claim 1, which is characterized in that: the expanded microspheres are expanded polymer microspheres.
6. The flexible yellowing-resistant beautiful porcelain adhesive according to claim 5, which is characterized in that: the particle size range of the foaming polymer microspheres is 10-100 mu m.
7. The flexible yellowing-resistant beautiful porcelain adhesive according to claim 6, which is characterized in that: the expanded microsphere is 0.6-0.9 wt%.
8. The flexible yellowing-resistant beautiful porcelain glue according to any one of claims 1 to 7, wherein: the fumed silica is hydrophobic silica; the foam breaker is a foam breaking polymer solution.
9. The flexible yellowing-resistant beautiful porcelain glue according to any one of claims 1 to 7, wherein: the ultraviolet absorbent is BASF Tinuvin 1130 or BASF Tinuvin 5151; the dispersant is a mosaic copolymer containing basic pigment affinity groups.
10. The flexible yellowing-resistant beautiful porcelain glue according to any one of claims 1 to 7, wherein: the pigment filler is one or a mixture of more of titanium dioxide, pearl powder, glitter powder and barium sulfate; the dehydrating agent is p-toluenesulfonyl isocyanate or a 4A type molecular sieve; the isocyanate curing agent comprises the following components in percentage by weight: 97.8 to 99.8 percent of aliphatic polyisocyanate, 0 to 2 percent of isophorone diamine isocyanate and 0 to 0.2 percent of hexamethylene-1, 6-diisocyanate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010963872.3A CN112210335A (en) | 2020-09-14 | 2020-09-14 | Flexible yellowing-resistant porcelain beautifying adhesive |
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|---|---|---|---|
| CN202010963872.3A CN112210335A (en) | 2020-09-14 | 2020-09-14 | Flexible yellowing-resistant porcelain beautifying adhesive |
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| CN112210335A true CN112210335A (en) | 2021-01-12 |
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| CN202010963872.3A Pending CN112210335A (en) | 2020-09-14 | 2020-09-14 | Flexible yellowing-resistant porcelain beautifying adhesive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507501A (en) * | 2022-01-29 | 2022-05-17 | 中山市卡施力顿建材有限公司 | Bi-component seam beautifying agent and preparation method and application thereof |
| CN115873291A (en) * | 2022-12-23 | 2023-03-31 | 郑州圣莱特空心微珠新材料有限公司 | Substitute wood and preparation method thereof |
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2020
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Cited By (3)
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| CN115873291A (en) * | 2022-12-23 | 2023-03-31 | 郑州圣莱特空心微珠新材料有限公司 | Substitute wood and preparation method thereof |
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Application publication date: 20210112 |