CN111234745A - Environment-friendly high-temperature-resistant conveying belt binder and preparation method thereof - Google Patents
Environment-friendly high-temperature-resistant conveying belt binder and preparation method thereof Download PDFInfo
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- CN111234745A CN111234745A CN202010216722.6A CN202010216722A CN111234745A CN 111234745 A CN111234745 A CN 111234745A CN 202010216722 A CN202010216722 A CN 202010216722A CN 111234745 A CN111234745 A CN 111234745A
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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
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/04—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to rubbers
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an environment-friendly high-temperature-resistant conveying belt binder and a preparation method thereof, wherein the binder is prepared from the following components, by weight, 550 parts of chloroprene rubber, 400 parts of methyl methacrylate (E-MMA), 10-18 parts of BPO (BPO), 4500 parts of trichloroethylene (trichloroethylene), 400 parts of alkyl phenolic resin (alkyl phenolic resin), 4-9 parts of active magnesium oxide, 40-50 parts of tetraisocyanate, 4000 parts of ethyl acetate (E-PAE), 4-6 parts of anti-aging agent D50, 6-8 parts of 2, 4, 6-trinitrophenol and 500 parts of water (300-PAE); according to the environment-friendly high-temperature-resistant conveyor belt adhesive and the preparation method thereof, the chloroprene rubber is grafted with the methyl methacrylate, so that linear macromolecules of the chloroprene rubber are changed into body-shaped macromolecules, the viscosity of the adhesive is improved, and the adhesive still has excellent viscosity at high temperature due to the combined action of the specific structural advantages of the body-shaped macromolecules and the aging-resistant agent.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to an environment-friendly high-temperature-resistant conveying belt adhesive and a preparation method thereof.
Background
The heat-resistant conveying belt mainly conveys objects with the temperature of more than or equal to 170 ℃ such as coke, slag, cement and the like, and is a common object in the building and smelting industries. The heat-resistant conveyor belt includes a metal frame and a fabric layer, which is covered on the surface of the metal frame and is in direct contact with a hot object, and the fabric layer is usually polyester canvas or rubber polyester cotton cloth. The polyester canvas or the rubber polyester cotton cloth is adhered with the metal framework through an adhesive. Most of the existing adhesives are linear polymer mixtures, all molecular chains of linear polymers are only linked through Van der Waals force, the adhesive force is good under the low-temperature condition, if the linear polymers work at high temperature for a long time, the distance between the linear polymers is gradually increased, the adhesive layer is gradually softened, and finally the adhesive is lost, so that the degumming is generated between the surface layer fabric and the metal framework in the conveying belt.
The invention discloses a Chinese patent CN201210352382.5, which provides a special adhesive for beer and beverage bottle cap gaskets and a preparation method thereof, belonging to the technical field of adhesive chemical industry and prepared by the following raw materials in parts by weight: 12-25 parts of epoxy resin; 10-30 parts of a curing agent; 5-25 parts of ethylene-vinyl acetate copolymer; 0.5-8 parts of a crosslinking agent; 0.02-1.5 parts of an initiator; 0.01-0.5 part of antioxidant; 1-3 parts of a plasticizer; 40-75 parts of a mixed solvent; 1-8 parts of inorganic filler. Compared with the prior art, the adhesive prepared by the method has the advantages that the bonding strength is greatly improved, and the cracking of the adhesive after curing is effectively avoided. The adhesive provided by the invention is only suitable for being used at low temperature or normal temperature, has poor performance when used at high temperature, and aims to solve the technical problems.
Disclosure of Invention
The invention aims to provide an environment-friendly high-temperature-resistant conveying belt binder and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides an environment-friendly high-temperature-resistant conveyer belt adhesive and a preparation method thereof, wherein the adhesive is prepared from the following components, by weight, 550 parts of chloroprene rubber, 400 parts of methyl methacrylate, 10-18 parts of BPO, 4500 parts of trichloroethylene, 400 parts of alkyl phenolic resin, 4-9 parts of active magnesium oxide, 40-50 parts of tetraisocyanate, 3000 parts of ethyl acetate 4000 parts of ethyl acetate, 4-6 parts of anti-aging agent D50, 6-8 parts of 2, 4, 6-trinitrophenol and 500 parts of water, 300 parts of-.
Preferably, the adhesive is prepared from the following components, by weight, 460-540 parts of chloroprene rubber, 310-380 parts of methyl methacrylate, 12-15 parts of BPO, 3800-4000 parts of trichloroethylene, 250-350 parts of alkyl phenolic resin, 5-8 parts of active magnesium oxide, 45-48 parts of tetraisocyanate, 3200-3800 parts of ethyl acetate, 4-6 parts of anti-aging agent D50, 6-8 parts of 2, 4, 6-trinitrophenol and 350-450 parts of water.
Preferably, the alkylphenol-formaldehyde resin is a tert-butyl phenol-formaldehyde resin.
Preferably, the preparation method comprises the following steps:
dissolving chloroprene rubber into ethyl acetate, uniformly stirring, adding part of BPO, continuously stirring for 10-20min, then dropwise adding methyl methacrylate into a mixed solution system, dissolving the rest BPO into the ethyl acetate after the dropwise adding of the methyl methacrylate is finished, then heating the mixed solution, keeping the temperature of the mixed solution at 75-85 ℃, continuously stirring for 5-6h, finally adding 2, 4, 6-trinitrophenol, and continuously stirring for 1 h; obtaining grafted chloroprene rubber copolymer;
pouring trichloroethylene, alkyl phenolic resin and active magnesium oxide into water, stirring at a high speed for 7-9h, then pouring the grafted chloroprene rubber copolymer and the anti-aging agent D50 into the aqueous solution, and continuously stirring at a high speed for 15-25h to obtain a mixed solution I;
and step three, uniformly mixing the mixed solution I and the tetraisocyanate to obtain the binder.
Preferably, the first addition of BPO in step one above is 1/3 based on the total amount of BPO used.
Compared with the prior art, the invention has the following beneficial effects:
according to the environment-friendly high-temperature-resistant conveyor belt adhesive and the preparation method thereof, the chloroprene rubber is grafted with the methyl methacrylate, so that linear macromolecules of the chloroprene rubber are changed into body-shaped macromolecules, and the viscosity of the adhesive is improved. Due to the specific structural advantages of the high molecular weight and the combined action of the aging resistant agent, the adhesive still has excellent viscosity at high temperature.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Dissolving 4.5g of chloroprene rubber into 40ml of ethyl acetate at the temperature of 60 ℃, uniformly stirring, adding 5mg of BPO, continuously stirring for 15min, then dropwise adding 3ml of methyl methacrylate into a mixed solution system, dissolving the remaining 10mg of BPO into the ethyl acetate, then heating the mixed solution to 75 ℃, continuously stirring for 5-6h, finally adding 6mg of 2, 4, 6-trinitrophenol, and continuously stirring for 1 h; obtaining grafted chloroprene rubber copolymer;
pouring 35g of trichloroethylene, 2g of tert-butyl phenolic resin and 40mg of active magnesium oxide into 3ml of water, and stirring at a high speed for 7-9h to obtain an aqueous solution; then pouring the grafted chloroprene rubber copolymer and 40mg of anti-aging agent D50 into the aqueous solution, and continuously stirring at a high speed for 15-25h to obtain a mixed solution I; and mixing the mixed solution I with 0.4g of tetraisocyanate and uniformly stirring to obtain the binder.
Example two
Dissolving 5.5g of chloroprene rubber into 40ml of ethyl acetate at the temperature of 70 ℃, uniformly stirring, adding 6mg of BPO, continuously stirring for 20min, then dropwise adding 4.0ml of methyl methacrylate into a mixed solution system, dissolving the rest 12mg of BPO into the ethyl acetate, then heating the mixed solution to 85 ℃, continuously stirring for 6h, finally adding 6mg of 2, 4, 6-trinitrophenol, and continuously stirring for 1 h; obtaining grafted chloroprene rubber copolymer;
pouring 45g of trichloroethylene, 4g of tert-butyl phenolic resin and 90mg of active magnesium oxide into 5ml of water, and stirring at a high speed for 9 hours to obtain an aqueous solution; then pouring the grafted chloroprene rubber copolymer and 40mg of anti-aging agent D50 into the aqueous solution, and continuously stirring at a high speed for 25h to obtain a mixed solution I; and mixing the mixed solution I with 0.5g of tetraisocyanate and uniformly stirring to obtain the binder.
EXAMPLE III
Dissolving 4.8g of chloroprene rubber into 35ml of ethyl acetate at the temperature of 65 ℃, uniformly stirring, adding 4mg of BPO, continuously stirring for 15min, then dropwise adding 3.4ml of methyl methacrylate into a mixed solution system, dissolving the remaining 8mg of BPO into the ethyl acetate, then heating the mixed solution to 80 ℃, continuously stirring for 5.5h, finally adding 6mg of 2, 4, 6-trinitrophenol, and continuously stirring for 1 h; obtaining grafted chloroprene rubber copolymer;
pouring 40g of trichloroethylene, 3g of tert-butyl phenolic resin and 60mg of active magnesium oxide into 4ml of water, and stirring at a high speed for 8 hours to obtain an aqueous solution; then pouring the grafted chloroprene rubber copolymer and 50mg of anti-aging agent D50 into the aqueous solution, and continuously stirring at a high speed for 15-25h to obtain a mixed solution I; and mixing the mixed solution I with 0.45g of tetraisocyanate and uniformly stirring to obtain the binder.
Cutting the polyester canvas into 8 blocks of 10cm by 10cm, dividing the 8 blocks of polyester canvas into four groups on average, coating an adhesive on one surface of each polyester canvas block, then adhering the two polyester canvas blocks coated with the adhesive together, and airing at room temperature for about 20-40 min. Four sets of polyester canvas were coated with each of the adhesives of example 1, example 2 and example 3 and a commercially available adhesive, and then four sets of the tightly adhered polyester canvas blocks were placed in an oven and heated to 200 c to test the hardness of the adhesive layer and whether the two polyester canvas blocks could be pulled apart, and the results are shown in the following table. As can be seen from the table below, the addition of methyl methacrylate to modify the linear chloroprene rubber into a high molecular weight adhesive effectively improves the adhesive properties of the adhesive at high temperatures.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An environment-friendly high-temperature-resistant conveying belt adhesive and a preparation method thereof are characterized in that the adhesive is prepared from the following components, by weight, 550 parts of chloroprene rubber, 400 parts of methyl methacrylate, 10-18 parts of BPO, 4500 parts of trichloroethylene, 400 parts of alkyl phenolic resin, 4-9 parts of active magnesium oxide, 40-50 parts of tetraisocyanate, 4000 parts of ethyl acetate, 4-6 parts of an anti-aging agent D50, 6-8 parts of 2, 4, 6-trinitrophenol and 500 parts of water, wherein the components comprise, by weight, 450 parts of the chloroprene rubber, 300 parts of the methyl methacrylate, 10-18 parts of the BPO, 3500 parts of the trichloroethylene, 400 parts of the alkyl phenolic resin, 4-.
2. The environment-friendly high-temperature-resistant conveying belt adhesive and the preparation method thereof as claimed in claim 1, wherein the adhesive is prepared from, by weight, 460-540 parts of chloroprene rubber, 310-380 parts of methyl methacrylate, 12-15 parts of BPO, 3800-4000 parts of trichloroethylene, 250-350 parts of alkyl phenolic resin, 5-8 parts of active magnesium oxide, 45-48 parts of tetraisocyanate, 3200-3800 parts of ethyl acetate, 4-6 parts of anti-aging agent D50, 6-8 parts of 2, 4, 6-trinitrophenol and 350-450 parts of water.
3. The environment-friendly high-temperature-resistant conveying belt binder and the preparation method thereof as claimed in claim 1, wherein the alkyl phenolic resin is tert-butyl phenolic resin.
4. The environment-friendly high-temperature-resistant conveying belt binder and the preparation method thereof as claimed in claim 1, wherein the preparation method comprises the following steps:
dissolving chloroprene rubber into ethyl acetate, uniformly stirring, adding part of BPO, continuously stirring for 10-20min, then dropwise adding methyl methacrylate into a mixed solution system, dissolving the rest BPO into the ethyl acetate after the dropwise adding of the methyl methacrylate is finished, then heating the mixed solution, keeping the temperature of the mixed solution at 75-85 ℃, continuously stirring for 5-6h, finally adding 2, 4, 6-trinitrophenol, and continuously stirring for 1 h; obtaining grafted chloroprene rubber copolymer;
pouring trichloroethylene, alkyl phenolic resin and active magnesium oxide into water, stirring at a high speed for 7-9 hours to obtain an aqueous solution, then pouring the grafted chloroprene rubber copolymer and the anti-aging agent D50 into the aqueous solution, and continuously stirring at a high speed for 15-25 hours to obtain a mixed solution I;
and step three, uniformly mixing the mixed solution I and the tetraisocyanate to obtain the binder.
5. The environment-friendly high-temperature-resistant conveying belt binder and the preparation method thereof as claimed in claim 4, wherein the first BPO addition amount in the first step is 1/3 of the total BPO addition amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216722.6A CN111234745A (en) | 2020-03-25 | 2020-03-25 | Environment-friendly high-temperature-resistant conveying belt binder and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216722.6A CN111234745A (en) | 2020-03-25 | 2020-03-25 | Environment-friendly high-temperature-resistant conveying belt binder and preparation method thereof |
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| CN111234745A true CN111234745A (en) | 2020-06-05 |
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| CN202010216722.6A Pending CN111234745A (en) | 2020-03-25 | 2020-03-25 | Environment-friendly high-temperature-resistant conveying belt binder and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272520A (en) * | 2000-06-19 | 2000-11-08 | 黄红霞 | Normal temp. solidified conveying band joint chloroprene rubber adhesive |
| CN101735735A (en) * | 2010-01-14 | 2010-06-16 | 江苏大力士投资有限公司 | Acrylic ester adhesive |
| CN102492382A (en) * | 2011-11-16 | 2012-06-13 | 北京天山新材料技术股份有限公司 | Environmentally-friendly double-component high temperature-resistant conveyer belt bonding agent and preparation method thereof |
| US20180298235A1 (en) * | 2017-04-18 | 2018-10-18 | Yuh-Jye Uang | Method For Bonding Rubber and Ethylene-Vinyl Acetate (EVA) Foam |
-
2020
- 2020-03-25 CN CN202010216722.6A patent/CN111234745A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272520A (en) * | 2000-06-19 | 2000-11-08 | 黄红霞 | Normal temp. solidified conveying band joint chloroprene rubber adhesive |
| CN101735735A (en) * | 2010-01-14 | 2010-06-16 | 江苏大力士投资有限公司 | Acrylic ester adhesive |
| CN102492382A (en) * | 2011-11-16 | 2012-06-13 | 北京天山新材料技术股份有限公司 | Environmentally-friendly double-component high temperature-resistant conveyer belt bonding agent and preparation method thereof |
| US20180298235A1 (en) * | 2017-04-18 | 2018-10-18 | Yuh-Jye Uang | Method For Bonding Rubber and Ethylene-Vinyl Acetate (EVA) Foam |
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