CN107914353B - Release agent for acrylic production - Google Patents

Release agent for acrylic production Download PDF

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Publication number
CN107914353B
CN107914353B CN201711324434.7A CN201711324434A CN107914353B CN 107914353 B CN107914353 B CN 107914353B CN 201711324434 A CN201711324434 A CN 201711324434A CN 107914353 B CN107914353 B CN 107914353B
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CN
China
Prior art keywords
parts
resin
acrylic
release agent
montmorillonite
Prior art date
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Expired - Fee Related
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CN201711324434.7A
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Chinese (zh)
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CN107914353A (en
Inventor
吴二胜
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Anhui Xinsheng Plastic Technology Co ltd
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Anhui Xinsheng Plastic Technology Co ltd
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Priority to CN201711324434.7A priority Critical patent/CN107914353B/en
Publication of CN107914353A publication Critical patent/CN107914353A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/56Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/60Releasing, lubricating or separating agents
    • B29C33/62Releasing, lubricating or separating agents based on polymers or oligomers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubricants (AREA)
  • Epoxy Resins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a release agent for acrylic production, which consists of the following substances: epoxy resin, petroleum resin, urea resin, acrylic resin, epoxidized soybean oil, sodium hexametaphosphate, montmorillonite, nonylphenol polyoxyethylene ether, seaweed gel, bacterial cellulose, ethylene glycol and water. The release agent prepared by the invention has good temperature resistance, wear resistance and repeated scouring resistance, effectively improves the surface smoothness of the acrylic sheet, has good adhesion and stable quality, and has strong market competitiveness and popularization and use values.

Description

Release agent for acrylic production
Technical Field
The invention belongs to the technical field of acrylic processing treatment, and particularly relates to a release agent for acrylic production.
Background
Acrylic, also known as plexiglass, is chemically known as polymethyl methacrylate and is transparent like glass. Acrylic has good chemical stability, easy dyeing, easy processing and beautiful appearance, is widely popular with people and is widely applied to modern people life.
In the process of processing and forming acrylic, a die plays a crucial role, and the surface state and the size precision of the die directly influence the quality of a product. Since the mold is generally made of an alloy material, the heated raw material mixture is easily adhered to the surface of the mold during the molding process, and is difficult to fall off, so that a release agent is required to improve the release efficiency and quality. The existing mold release agent mostly has the problems of weak anti-scouring capability, low thermal stability, poor mold release effect and the like.
Disclosure of Invention
The invention aims to solve the existing problems and provides a release agent for acrylic production.
The invention is realized by the following technical scheme:
a release agent for acrylic production is composed of the following substances in parts by weight:
60-65 parts of epoxy resin, 12-16 parts of petroleum resin, 8-13 parts of urea-formaldehyde resin, 6-10 parts of acrylic resin, 3-5 parts of epoxidized soybean oil, 2-4 parts of sodium hexametaphosphate, 7-11 parts of montmorillonite, 1-2 parts of nonylphenol polyoxyethylene ether, 1-3 parts of seaweed gel, 2-4 parts of bacterial cellulose, 10-14 parts of ethylene glycol and 260-280 parts of water.
Preferably, the composition consists of the following substances in parts by weight:
63-65 parts of epoxy resin, 14-16 parts of petroleum resin, 11-13 parts of urea-formaldehyde resin, 8-10 parts of acrylic resin, 4-5 parts of epoxidized soybean oil, 3-4 parts of sodium hexametaphosphate, 9-11 parts of montmorillonite, 1.5-2 parts of nonylphenol polyoxyethylene ether, 2-3 parts of seaweed gel, 3-4 parts of bacterial cellulose, 12-14 parts of ethylene glycol and 270-280 parts of water.
Preferably, the composition consists of the following substances in parts by weight:
63 parts of epoxy resin, 14 parts of petroleum resin, 11 parts of urea-formaldehyde resin, 8 parts of acrylic resin, 4 parts of epoxidized soybean oil, 3 parts of sodium hexametaphosphate, 9 parts of montmorillonite, 1.5 parts of nonylphenol polyoxyethylene ether, 2 parts of seaweed gel, 3 parts of bacterial cellulose, 12 parts of ethylene glycol and 270 parts of water.
Furthermore, the particle size of the montmorillonite is 800-1000 meshes.
A preparation method of a release agent for acrylic production comprises the following steps:
(1) firstly, mixing epoxy resin, petroleum resin, urea resin and acrylic resin together, putting the mixture into a reaction kettle, heating the mixture to keep the temperature in the reaction kettle at 70-75 ℃, and continuously stirring the mixture for 40-45 min for later use;
(2) and (2) adding epoxidized soybean oil, sodium hexametaphosphate, montmorillonite, nonylphenol polyoxyethylene ether, seaweed glue, bacterial cellulose, ethylene glycol and water into the reaction kettle treated in the step (1), heating to keep the temperature in the reaction kettle at 50-55 ℃ and the pressure at 0.3-0.5 MPa, continuously stirring for 1-2 hours, and taking out.
Compared with the prior art, the invention has the following advantages:
the components of the release agent are specially matched and adjusted, wherein epoxy resin, petroleum resin, urea-formaldehyde resin and acrylic resin are compounded to be used as a main film forming substance, the corrosion resistance and temperature resistance are good, the added montmorillonite is a lamellar structure filler, the release efficiency and effect are improved, the surface smoothness of an acrylic plate is enhanced, the spreading and smoothness of an integral film layer of the release agent are improved by the added seaweed glue and bacterial cellulose, and the dispersion and fusion performance between the montmorillonite and a film forming matrix are improved. Under the combined action of the components, the release agent prepared by the invention has good temperature resistance, wear resistance and repeated scouring resistance, effectively improves the surface smoothness of the acrylic sheet, has good adhesion and stable quality, and has strong market competitiveness and popularization and use values.
Detailed Description
Example 1
A release agent for acrylic production is composed of the following substances in parts by weight:
60 parts of epoxy resin, 12 parts of petroleum resin, 8 parts of urea-formaldehyde resin, 6 parts of acrylic resin, 3 parts of epoxidized soybean oil, 2 parts of sodium hexametaphosphate, 7 parts of montmorillonite, 1 part of nonylphenol polyoxyethylene ether, 1 part of seaweed gel, 2 parts of bacterial cellulose, 10 parts of ethylene glycol and 260 parts of water.
Furthermore, the particle size of the montmorillonite is 800-1000 meshes.
A preparation method of a release agent for acrylic production comprises the following steps:
(1) firstly, mixing epoxy resin, petroleum resin, urea resin and acrylic resin together, putting the mixture into a reaction kettle, heating the mixture to keep the temperature in the reaction kettle at 70 ℃, and continuously stirring the mixture for 40min for later use;
(2) and (2) adding epoxidized soybean oil, sodium hexametaphosphate, montmorillonite, nonylphenol polyoxyethylene ether, seaweed glue, bacterial cellulose, ethylene glycol and water into the reaction kettle treated in the step (1), heating to keep the temperature in the reaction kettle at 50 ℃ and the pressure at 0.3MPa, continuously stirring for 1h, and taking out.
Example 2
A release agent for acrylic production is composed of the following substances in parts by weight:
63 parts of epoxy resin, 14 parts of petroleum resin, 11 parts of urea-formaldehyde resin, 8 parts of acrylic resin, 4 parts of epoxidized soybean oil, 3 parts of sodium hexametaphosphate, 9 parts of montmorillonite, 1.5 parts of nonylphenol polyoxyethylene ether, 2 parts of seaweed gel, 3 parts of bacterial cellulose, 12 parts of ethylene glycol and 270 parts of water.
Furthermore, the particle size of the montmorillonite is 800-1000 meshes.
A preparation method of a release agent for acrylic production comprises the following steps:
(1) firstly, mixing epoxy resin, petroleum resin, urea resin and acrylic resin together, putting the mixture into a reaction kettle, heating the mixture to keep the temperature in the reaction kettle at 73 ℃, and continuously stirring the mixture for 43min for later use;
(2) and (2) adding epoxidized soybean oil, sodium hexametaphosphate, montmorillonite, nonylphenol polyoxyethylene ether, seaweed glue, bacterial cellulose, ethylene glycol and water into the reaction kettle treated in the step (1), heating to keep the temperature in the reaction kettle at 52 ℃ and the pressure at 0.4MPa, continuously stirring for 1.5h, and taking out.
Example 3
A release agent for acrylic production is composed of the following substances in parts by weight:
65 parts of epoxy resin, 16 parts of petroleum resin, 13 parts of urea-formaldehyde resin, 10 parts of acrylic resin, 5 parts of epoxidized soybean oil, 4 parts of sodium hexametaphosphate, 11 parts of montmorillonite, 2 parts of nonylphenol polyoxyethylene ether, 3 parts of seaweed gel, 4 parts of bacterial cellulose, 14 parts of ethylene glycol and 280 parts of water.
Furthermore, the particle size of the montmorillonite is 800-1000 meshes.
A preparation method of a release agent for acrylic production comprises the following steps:
(1) firstly, mixing epoxy resin, petroleum resin, urea resin and acrylic resin together, putting the mixture into a reaction kettle, heating the mixture to keep the temperature in the reaction kettle at 75 ℃, and continuously stirring the mixture for 45min for later use;
(2) and (2) adding epoxidized soybean oil, sodium hexametaphosphate, montmorillonite, nonylphenol polyoxyethylene ether, seaweed glue, bacterial cellulose, ethylene glycol and water into the reaction kettle treated in the step (1), heating to keep the temperature in the reaction kettle at 55 ℃ and the pressure at 0.5MPa, continuously stirring for 2 hours, and taking out.
Experimental performance tests on the release agent prepared by the invention show that the continuous demolding time can reach more than 26 times, the continuous demolding time is prolonged by more than 10 times compared with the commercially available common release agent, the high-temperature weight loss rate of the release agent is not more than 1.2%, and the surface smoothness of the produced acrylic sheet is high. The release agent has good and stable comprehensive use quality, and has good economic benefit and popularization and use value.

Claims (5)

1. The release agent for acrylic production is characterized by comprising the following substances in parts by weight:
60-65 parts of epoxy resin, 12-16 parts of petroleum resin, 8-13 parts of urea-formaldehyde resin, 6-10 parts of acrylic resin, 3-5 parts of epoxidized soybean oil, 2-4 parts of sodium hexametaphosphate, 7-11 parts of montmorillonite, 1-2 parts of nonylphenol polyoxyethylene ether, 1-3 parts of seaweed gel, 2-4 parts of bacterial cellulose, 10-14 parts of ethylene glycol and 260-280 parts of water.
2. The release agent for acrylic production as claimed in claim 1, characterized by consisting of the following substances in parts by weight:
63-65 parts of epoxy resin, 14-16 parts of petroleum resin, 11-13 parts of urea-formaldehyde resin, 8-10 parts of acrylic resin, 4-5 parts of epoxidized soybean oil, 3-4 parts of sodium hexametaphosphate, 9-11 parts of montmorillonite, 1.5-2 parts of nonylphenol polyoxyethylene ether, 2-3 parts of seaweed gel, 3-4 parts of bacterial cellulose, 12-14 parts of ethylene glycol and 270-280 parts of water.
3. The release agent for acrylic production as claimed in claim 1, characterized by consisting of the following substances in parts by weight:
63 parts of epoxy resin, 14 parts of petroleum resin, 11 parts of urea-formaldehyde resin, 8 parts of acrylic resin, 4 parts of epoxidized soybean oil, 3 parts of sodium hexametaphosphate, 9 parts of montmorillonite, 1.5 parts of nonylphenol polyoxyethylene ether, 2 parts of seaweed gel, 3 parts of bacterial cellulose, 12 parts of ethylene glycol and 270 parts of water.
4. The release agent for acrylic production as claimed in any one of claims 1 to 3, wherein the particle size of the montmorillonite is 800 to 1000 mesh.
5. A method for preparing the release agent for acrylic production according to any one of claims 1 to 3, characterized by comprising the following steps:
(1) firstly, mixing epoxy resin, petroleum resin, urea resin and acrylic resin together, putting the mixture into a reaction kettle, heating the mixture to keep the temperature in the reaction kettle at 70-75 ℃, and continuously stirring the mixture for 40-45 min for later use;
(2) and (2) adding epoxidized soybean oil, sodium hexametaphosphate, montmorillonite, nonylphenol polyoxyethylene ether, seaweed glue, bacterial cellulose, ethylene glycol and water into the reaction kettle treated in the step (1), heating to keep the temperature in the reaction kettle at 50-55 ℃ and the pressure at 0.3-0.5 MPa, continuously stirring for 1-2 hours, and taking out.
CN201711324434.7A 2017-12-13 2017-12-13 Release agent for acrylic production Expired - Fee Related CN107914353B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711324434.7A CN107914353B (en) 2017-12-13 2017-12-13 Release agent for acrylic production

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Application Number Priority Date Filing Date Title
CN201711324434.7A CN107914353B (en) 2017-12-13 2017-12-13 Release agent for acrylic production

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CN107914353A CN107914353A (en) 2018-04-17
CN107914353B true CN107914353B (en) 2020-04-28

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Publication number Priority date Publication date Assignee Title
CN112387923A (en) * 2020-10-21 2021-02-23 重庆市宇红轨道车辆配件有限公司 Heat-resistant release agent for brake shoe manufacturing and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102925273A (en) * 2012-10-26 2013-02-13 苏州市德莱尔建材科技有限公司 Concrete releasing agent

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102615747A (en) * 2011-02-01 2012-08-01 汉高股份有限及两合公司 Mould release agent, its preparation method and its purpose

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102925273A (en) * 2012-10-26 2013-02-13 苏州市德莱尔建材科技有限公司 Concrete releasing agent

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Denomination of invention: Release agent for acrylic production

Effective date of registration: 20200612

Granted publication date: 20200428

Pledgee: Zongyang sub branch of Huishang Bank Co.,Ltd. (Zongyang sub branch of Huishang bank)

Pledgor: ANHUI XINSHENG PLASTIC TECHNOLOGY Co.,Ltd.

Registration number: Y2020980003045

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200428

CF01 Termination of patent right due to non-payment of annual fee