WO2009000189A1 - Procede de production de lucite a resistance elevee a l'abrasion et aux chocs, mettant en œuvre un procede de transfert membranaire - Google Patents

Procede de production de lucite a resistance elevee a l'abrasion et aux chocs, mettant en œuvre un procede de transfert membranaire Download PDF

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Publication number
WO2009000189A1
WO2009000189A1 PCT/CN2008/071260 CN2008071260W WO2009000189A1 WO 2009000189 A1 WO2009000189 A1 WO 2009000189A1 CN 2008071260 W CN2008071260 W CN 2008071260W WO 2009000189 A1 WO2009000189 A1 WO 2009000189A1
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WO
WIPO (PCT)
Prior art keywords
wear
resistant
plexiglass
impact
amount
Prior art date
Application number
PCT/CN2008/071260
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English (en)
Chinese (zh)
Inventor
Minrui Zhang
Shaohua Zhang
Xiongfei Wu
Xiangyun Ouyang
Original Assignee
Minrui Zhang
Shaohua Zhang
Xiongfei Wu
Xiangyun Ouyang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minrui Zhang, Shaohua Zhang, Xiongfei Wu, Xiangyun Ouyang filed Critical Minrui Zhang
Publication of WO2009000189A1 publication Critical patent/WO2009000189A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen

Definitions

  • the invention relates to a method for preparing a plexiglass sheet, in particular to a method for preparing a high abrasion resistance and high impact plexiglass by a film transfer method, which comprises a transfer of a functional layer of an abrasion resistant layer, a formulation of a wear resistant coating, UV curing and spray coating technology for wear resistant layers.
  • Ordinary plexiglass is prepared by: using two pieces of inorganic tempered glass as a template, adding a prepolymer of methyl methacrylate to the film plate, and polymerizing polymerization at a temperature of 45 to 50 ° C for several hours, and then passing through 100 to 125 After about several hours at a high temperature of about °C, ordinary plexiglass is obtained.
  • This ordinary plexiglass has a surface hardness of only 2 3H (pencil hardness), and has a large surface resistance and is liable to generate static electricity.
  • the wear-resistant plexiglass with anti-static and anti-static functions for liquid crystal display and plasma display has a surface hardness of more than 6H and a surface resistance of 10 9 ⁇ .
  • Foreign wear-resistant plexiglass is a surface coating method (for example, Chinese patent CN1439665A, CN1127695 A, CN1168148A) by: applying a wear-resistant coating on the surface of ordinary plexiglass, that is, obtaining wear-resistant plexiglass .
  • the disadvantages of using the surface coating method to produce wear-resistant plexiglass are: low yield of the product, and poor impact resistance of the surface coating of the plexiglass, which is liable to cause refractive deformation.
  • the surface coating method has been used to prepare wear-resistant plexiglass. Summary of the invention
  • the object of the present invention is to provide a method for preparing a high wear-resistant and high-impact plexiglass by a film transfer method, which overcomes the above-mentioned deficiencies of the prior art, and solves the problem of producing a product of wear-resistant plexiglass by the existing surface coating method.
  • the problem is that the rate is low, the surface coating is poor in impact resistance, and the deformation of the refractive index is liable to occur.
  • the technical proposal of the invention is: a method for preparing a high wear-resisting and high-impact plexiglass by a film transfer method, which first forms a wear-resistant layer coating on an inorganic tempered glass film plate, and then wears a wear-resistant layer coating The wear-resistant layer functional film is cured on the inorganic tempered glass, and then the inorganic tempered glass which is formed into the wear-resistant layer functional film is used as a template, and the high wear-resistant and high-impact plexiglass is prepared according to the preparation method of the common plexiglass.
  • a further technical solution of the present invention is: forming a wear-resistant layer coating on the inorganic tempered glass by ultraviolet light to form a wear-resistant layer functional film having an interpenetrating network structure, and controlling one side of the functional film cannot be fully cured to ensure sufficient A plurality of double bonds are combined with the bulk of the plexiglass in the next reaction.
  • the wear layer coating of the present invention comprises the following parts: (1) an acrylic prepolymer, usually a methyl methacrylate prepolymer, in an amount of 5% to 40% (based on the weight of the abrasion resistant coating layer coating, the same below), preferably 15% to 30%;
  • the amount and type of reactive diluent in the composition are limited, and the viscosity of the wear-resistant layer coating should not be too high. If the viscosity is too high, the hardness and production conditions of the wear-resistant layer may be adversely affected, and low-viscosity is used as much as possible.
  • the monomer is very useful for controlling the viscosity of the composition, but the low-viscosity monomer affects the physicochemical properties of the functional film, the polyfunctional monomer content increases, the cross-linking double bond is greatly increased, and the crack is generated due to the increase of the shrinkage rate.
  • a polyfunctional acrylate is used as a functional group, so it is necessary to ensure that the functional film has good hardness to improve abrasion resistance;
  • Photoinitiator the photoinitiator of the present invention produces a radical and catalyzes a polymerization reaction, it can also be used as an initiator for radical polymerization, and can increase the polymerization rate, and the initiator of the present invention includes 2-hydroxyl -2-methyl-1-phenyl-propan-1-one (1173), 1-hydroxy-cyclohexyl-benzophenone (184) or a mixture thereof, in an amount of 1% by weight based on the total weight of the abrasion resistant coating;
  • the ratio of release agent, antifoaming agent and leveling agent is 0.01% ⁇ 1%.
  • the method for preparing the abrasion resistant coating of the present invention comprises:
  • the thickness of the functional film in the present invention is preferably 10 to 50 ⁇ m, and when the thickness of the functional film exceeds 50 ⁇ m, cracks are liable to occur, and when the functional film is less than ⁇ , the obtained sheet has uneven wear resistance.
  • Commonly used coating methods such as blade coating, dip coating, shower coating, and spray coating can be used in the present invention, the specificity of the plexiglass production process, and the requirements of the functional film and the coating properties to determine the coating method;
  • air spray coating can make the functional film coating very uniform, and the thickness of the functional film can be well controlled.
  • the spraying method used in the present invention is air spray coating.
  • the wear resistant coating is sprayed in the form of a gas spray or a pressure spray; preferably air spray, especially air spray, allows the wear resistant coating to be sprayed very thin and evenly. Undiluted wear-resistant coatings can also be used in the production of plexiglass, but the uniformity of the functional film is not guaranteed.
  • the wear-resistant coating can be sprayed evenly. Further, the thickness is in accordance with the requirements, and the methyl methacrylate prepolymer is used in an amount of 0.2 to 3 times, preferably 0.5 to 1.5 times, based on the total mass of the material.
  • the present invention has the following features in comparison with the prior art:
  • the surface hardness and surface resistance of the plexiglass sheet described in the present invention are sufficient, the impact resistance and the antistatic effect are excellent, and the light transmittance is also good.
  • the sheet material is adapted to a display panel that allows light to be transmitted from the display screen.
  • the wear-resistant plexiglass sheet of the present invention has significant wear resistance and low moisture absorption as compared with the case of a conventional methacrylate sheet. detailed description
  • the wear-resistant coating mixture contains 20% methyl methacrylate prepolymer, 5% pentaerythritol triacrylate. Ester, 5% dipentaerythritol triacrylate, 40% neopentyl glycol acrylate, 20% polyethylene glycol acrylate, 0.5% stearic acid, 1.5% free radical photoinitiator 184, 0.5% silicone Leveling agent, 0.5% silicone defoamer.
  • the wear resistant coating layer of the formulation was polymerized using a lOOOOw UV lamp at a moving speed of 2 m/min.
  • tempered glass coated with a wear-resistant coating is used as a template, and a plexiglass of 3 mm is produced according to a production method of ordinary plexiglass, and an plexiglass excellent in abrasion resistance and impact resistance can be obtained.
  • the pencil hardness is greater than 6H, the yellowness index remains unchanged, the wear layer does not have silver streaks, and the adhesion of the functional film is good.
  • the abrasion resistant coating mixture contains 25% methyl methacrylate prepolymer, 5% pentaerythritol triacrylate. Ester, 10% trimethylolpropane triacrylate, 40% neopentyl glycol acrylate, 20% polyethylene glycol acrylate, 0.5% stearic acid, 1.5% free radical photoinitiator 184, 0.5% Silicone leveling agent, 0.5% silicone defoamer.
  • the wear resistant coating layer of the formulation was polymerized using a lOOOOw UV lamp at a moving speed of 2 m/min.
  • tempered glass coated with wear-resistant coating is used as a template, and 3 mm of plexiglass is produced according to the production method of ordinary plexiglass, and plexiglass excellent in wear resistance and impact resistance can be obtained.
  • Pencil hardness test The pencil hardness is greater than 6H, the yellowness index remains unchanged, the wear layer does not appear silver, and the adhesion of the functional film is good.
  • the wear resistant coating mixture contains 20% methyl methacrylate prepolymer, 10% pentaerythritol triacrylate. Ester, 30% Trimethylolpropane triacrylate, 40% polyethylene glycol acrylate, 0.5% stearic acid, 1.5% free radical photoinitiator 184, 0.5% silicone leveling agent, 0.5% Silicone defoamer.
  • the wear resistant coating layer of the formulation was polymerized using a lOOOOw UV lamp at a moving speed of 2 m/min.
  • tempered glass coated with a wear-resistant coating is used as a template, and a plexiglass of 3 mm is produced according to a production method of ordinary plexiglass, and an plexiglass excellent in abrasion resistance and impact resistance can be obtained.
  • the pencil hardness is greater than 6H, the yellowness index remains unchanged, the wear layer does not have silver streaks, and the adhesion of the functional film is good.
  • the wear-resistant coating mixture contains 20% methyl methacrylate prepolymer and 10% pentaerythritol. Triacrylate, 30% trimethylolpropane triacrylate, 20% neopentyl glycol acrylate, 20% polyethylene glycol acrylate, 0.5% stearic acid, 1.5% free radical photoinitiator 184, 0.5% silicone leveling agent, 0.5% silicone defoamer.
  • the wear-resistant coating layer of the formulation was polymerized at a moving speed of 2 m/min using an 11 KW UV lamp.
  • tempered glass coated with a wear-resistant coating is used as a template, and a plexiglass of 3 mm is produced according to a production method of ordinary plexiglass, and an plexiglass excellent in abrasion resistance and impact resistance can be obtained.
  • the pencil hardness is greater than 6H, the yellowness index remains unchanged, the wear layer does not have silver streaks, and the adhesion of the functional film is good.
  • Pencil hardness is 2H.
  • the wear-resistant and high-impact resistant organic glass of the invention has high wear resistance and high impact resistance, and can be larger Normal production under the area.
  • the highly wear-resistant and high-impact plexiglass of the present invention can be used for the safety glass of the LCD/TV display panel and the protective cover, and can also be used for a portable telephone.
  • the inventors of the present invention conducted research to develop a highly wear-resistant and high-impact plexiglass.
  • the present invention has been completed by the impact-resistant plexiglass and maintaining the constant mechanical properties and transparency of the plexiglass without the appearance of undesired yellow color.
  • the invention is not limited to the above specific technical solutions, as long as a wear-resistant layer coating is first formed on the inorganic tempered glass template, and then cured to form a wear-resistant layer functional film, and then the inorganic tempered glass with the wear-resistant layer is used as a template. It is within the scope of the present invention to prepare a highly wear-resistant and high-impact plexiglass according to the preparation method of ordinary plexiglass.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un procédé de production de lucite à résistance élevée à l'abrasion et aux chocs, mettant en œuvre un procédé de transfert membranaire. Ce procédé consiste : à appliquer de l'ester méthacrylique, du triacrylate de pentaérythritol, du triacrylate de triméthylol, du diacrylate de néopentilglycol, du diacrylate de polyglycol (200,400,600), du diacrylate d'hexandiol, un photo-initiateur, un agent égalisant et un agent antimoussant sur du verre trempé, par pulvérisation, polymérisation partielle de ce matériau pour former une membrane ; à se servir du verre avec la membrane comme moule ; puis à introduire de l'ester méthacrylique pour produire une lucite selon un processus classique. La lucite avec la membrane présente une dureté et une résistance de surface suffisantes, une bonne transmittance de lumière et de bonnes propriétés antistatiques et de résistance aux chocs. Par rapport à une lucite classique, la lucite selon l'invention présente une résistance supérieure à l'abrasion et une hygroscopicité inférieure.
PCT/CN2008/071260 2007-06-26 2008-06-11 Procede de production de lucite a resistance elevee a l'abrasion et aux chocs, mettant en œuvre un procede de transfert membranaire WO2009000189A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100352142A CN101104701A (zh) 2007-06-26 2007-06-26 膜转移法制备高耐磨和高抗冲性有机玻璃的方法
CN200710035214.2 2007-06-26

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Publication Number Publication Date
WO2009000189A1 true WO2009000189A1 (fr) 2008-12-31

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PCT/CN2008/071260 WO2009000189A1 (fr) 2007-06-26 2008-06-11 Procede de production de lucite a resistance elevee a l'abrasion et aux chocs, mettant en œuvre un procede de transfert membranaire

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CN (1) CN101104701A (fr)
WO (1) WO2009000189A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022222732A1 (fr) * 2021-04-23 2022-10-27 浙江华帅特新材料科技有限公司 Verre organique transparent, robuste et auto-nettoyant et procédé de fabrication s'y rapportant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101104701A (zh) * 2007-06-26 2008-01-16 张少华 膜转移法制备高耐磨和高抗冲性有机玻璃的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87100815A (zh) * 1985-06-28 1988-08-03 协和瓦斯化学工业株式会社 甲基丙烯酸树脂模制件及其制造方法
US5164127A (en) * 1990-10-02 1992-11-17 Cook Composites And Polymers Co. Method of preparing molded coatings for gel coated composites
CN1142212A (zh) * 1994-10-31 1997-02-05 大日本印刷株式会社 具有耐磨性的装饰材料
CN1218479A (zh) * 1996-05-17 1999-06-02 咨询卡有限公司 可固化的表面涂层组合物及其使用方法
CN101104701A (zh) * 2007-06-26 2008-01-16 张少华 膜转移法制备高耐磨和高抗冲性有机玻璃的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87100815A (zh) * 1985-06-28 1988-08-03 协和瓦斯化学工业株式会社 甲基丙烯酸树脂模制件及其制造方法
US5164127A (en) * 1990-10-02 1992-11-17 Cook Composites And Polymers Co. Method of preparing molded coatings for gel coated composites
CN1142212A (zh) * 1994-10-31 1997-02-05 大日本印刷株式会社 具有耐磨性的装饰材料
CN1218479A (zh) * 1996-05-17 1999-06-02 咨询卡有限公司 可固化的表面涂层组合物及其使用方法
CN101104701A (zh) * 2007-06-26 2008-01-16 张少华 膜转移法制备高耐磨和高抗冲性有机玻璃的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022222732A1 (fr) * 2021-04-23 2022-10-27 浙江华帅特新材料科技有限公司 Verre organique transparent, robuste et auto-nettoyant et procédé de fabrication s'y rapportant

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