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A kind of antistatic pmma pouring plate and manufacturing method thereof

A manufacturing method and anti-static technology, applied in the field of casting slab manufacturing, can solve the problems of uneven coating, scratches, unstable quality, etc., and achieve the effect of ensuring uniform distribution, promoting dissolution, and avoiding the influence of qualified rate.

Active Publication Date: 2022-07-01
成都亚克力板业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When vacuum coating is used, the surface of the plate needs to be treated first, and then one or both sides of the plate should be coated according to the requirements. This process will cause certain quality defects on the surface of the plate, such as scratches, uneven coating, etc., and the quality of the coating The cost is high, while prolonging the production cycle of the plate and reducing the production efficiency of the plate
It is also reported in the literature that the antistatic property of the board can be achieved by adding an antistatic agent to the prepolymer, but there are few such products in the market. The main reason is that the process of using the antistatic agent will bring quality defects to the finished board. , the product yield is low and the quality is unstable, so it is necessary to prepare a PMMA sheet with antistatic properties, high yield and high quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present embodiment provides a kind of antistatic PMMA casting board, including the following components by weight:

[0031] 83-85 parts of methyl methacrylate prepolymer;

[0032] 10 parts of methyl methacrylate;

[0033] Plasticizer DOP 3-5 copies;

[0034] Dodecanoyl peroxide 0.03-0.05 part;

[0035] Dodecyltrimethylammonium chloride 0.2-0.3 part;

[0036] Cosolvent 0.4-0.5 parts.

[0037] Further, the cosolvent is trimethylolpropane or hydroxyethyl acrylate.

[0038] In this implementation, dodecyltrimethylammonium chloride is a kind of cationic salt. As an antistatic agent, it has a certain solubility in PMMA monomer. The existence of co-solvent can further promote the dissolution and ensure that the Evenly distributed in the plate, the cations in the plate can form a conductive path to conduct the charge in time and play an antistatic effect.

Embodiment 2

[0040] The present embodiment provides a method for manufacturing an antistatic PMMA cast plate, comprising the following steps:

[0041] S1: Weigh 10 parts of methyl methacrylate, 0.2 part of dodecyl trimethyl ammonium chloride, 0.4 part of cosolvent, stir and mix evenly for subsequent use;

[0042] S2: Weigh 83 parts of methyl methacrylate prepolymer, 3 parts of plasticizer DOP, 0.03 part of dodecanoyl peroxide, stir and mix for 5min, then slowly pour the mixture obtained in step S1 into it, stir and mix 30min;

[0043] S3: filter the slurry stirred in step S2 through a 250-mesh filter cloth, and then vacuum defoaming for 30 minutes, and the vacuum degree is 0.08 MPa;

[0044] S4: pour a certain weight of the mixture prepared in step S3 into the glass mold for molding;

[0045] S5: Put the prepared mold into a pool for pre-polymerization, the temperature of the pool is 55°C, and check the hardness with acupuncture. The reaction end point is when the acupuncture does not pe...

Embodiment 3

[0048] The present embodiment provides a method for manufacturing an antistatic PMMA cast plate, comprising the following steps:

[0049] S1: Weigh 10 parts of methyl methacrylate, 0.22 part of dodecyl trimethyl ammonium chloride, 0.4 part of cosolvent, stir and mix evenly for subsequent use;

[0050] S2: Weigh 84 parts of methyl methacrylate prepolymer, 5 parts of plasticizer DOP, 0.05 part of dodecanoyl peroxide, stir and mix for 5min, then slowly pour the mixture obtained in step S1 into it, stir and mix 30min;

[0051] S3: filter the slurry stirred in step S2 through a 250-mesh filter cloth and then vacuum defoaming for 30min, and the vacuum degree is 0.09MPa;

[0052] S4: pour a certain weight of the mixture prepared in step S3 into the glass mold for molding;

[0053]S5: Put the prepared mold into a pool for pre-polymerization. The temperature of the pool is 56°C. Check the hardness with acupuncture. The reaction end point is when the acupuncture does not penetrate the...

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Abstract

The invention discloses an antistatic PMMA pouring plate and a manufacturing method thereof, and relates to the technical field of pouring plate manufacturing. The antistatic PMMA pouring plate comprises the following components in parts by weight: 83-85 parts of methyl methacrylate prepolymer, methyl methacrylate 10 parts of methyl methacrylate, 3-5 parts of plasticizer DOP, 0.03-0.05 parts of dodecyl peroxide, 0.2-0.3 parts of dodecyl trimethyl ammonium chloride and 0.4-0.5 parts of cosolvent, when preparing , first take a certain amount of methyl methacrylate, dodecyl trimethyl ammonium chloride and cosolvent, stir and mix them evenly, and then take a certain amount of methyl methacrylate prepolymer, plasticizer and dodecyl peroxide The acyl group is stirred and mixed, poured into the mixture prepared in the previous step, stirred and mixed, filtered and vacuum defoamed, and finally poured into a mold for molding. At the same time, its yield and quality are high.

Description

technical field [0001] The invention relates to the technical field of casting slab manufacturing, and more particularly to an antistatic PMMA casting slab and a manufacturing method thereof. Background technique [0002] PMMA is a thermoplastic polymer material with the advantages of good heat resistance, high hardness, high light transmittance, and strong UV resistance. It is widely used in decoration, bathroom, optics and other fields. The surface resistivity of PMMA is 10 15 Above, the surface of the material is easy to accumulate charges when it is rubbed, pulled, compressed, peeled off, and the electrostatic field generated when a large amount of charge accumulates will interfere with the operation of electronic products, or absorb dust in the air, so in the semiconductor industry, LCD Conventional PMMA sheets cannot meet the requirements for use in static-sensitive occasions such as industry, electrical and electronic, optical manufacturing, communication manufacturi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/06C08F220/14C08K5/12C08K5/19
CPCC08F265/06C08K5/12C08K5/19C08K2201/017C08F220/14
Inventor 吴志雄
Owner 成都亚克力板业有限公司
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