Method for preparing acrylic thick plate through water bath cooling

An acrylic and water bath technology, which is applied in applications, flat products, household appliances, etc., can solve the problems of insufficient toughness and light transmission, which affect the use of acrylic products, and achieve good electrical insulation, mechanical strength, and good transparency.

Pending Publication Date: 2021-01-22
苏州西雅克水族科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its toughness and light transmittance are slightly insufficient in high-demand special use environments, which directly affects the use of acrylic products to a certain extent.

Method used

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  • Method for preparing acrylic thick plate through water bath cooling
  • Method for preparing acrylic thick plate through water bath cooling

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Embodiment Construction

[0019] The method of the present invention will be further described below in conjunction with the examples, but the present invention is not limited thereto.

[0020] A method for preparing acrylic thick plates by cooling in a water bath, characterized in that: the steps include:

[0021] 1) Pre-polymerization pulping: Add methyl cyanoformate, chloromethyl acetate, diethyl alcohol dimethacrylate, azobisisobutyronitrile, isooctyl ester, and methyl methacrylate monomers into the reactor, Heat to keep the temperature at 100-110°C, increase the pressure to 1MPA, and stir for 1-2 hours; mix fluorite powder, nano-calcium carbonate, nano-graphene, nano-silicon carbide, maleic anhydride, trimethoxysilane, stearic acid, and nano-glass Add fiber and leveling agent into the reaction kettle, and stir continuously for at least 2 hours at 150-160°C and 3-5MPa pressure;

[0022] 2) Degassing: after the reaction is finished, put it into a degassing tank for vacuuming and degassing;

[0023...

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PUM

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Abstract

The invention discloses a method for preparing an acrylic thick plate by utilizing water bath cooling. The method is characterized by comprising the following steps: (1) prepolymerization pulping, (2)degassing, (3) discharging and injecting, (4) water bath polymerization, (5) demolding, (6) splicing and (7) drying room shaping. An organic glass plate obtained according to the formula disclosed bythe invention is good in transparency, the relative density is smaller than half of that of common glass, the crushing resistance is several times higher than that of the common glass, and the organic glass plate has good electrical insulating property and mechanical strength. According to the acrylic thick plate obtained through the method, the thickness is larger than 100 mm, and the light transmittance reaches 92% or above.

Description

technical field [0001] The invention belongs to the technical field of organic glass, and in particular relates to a method for preparing thick acrylic plates by cooling in a water bath. Background technique [0002] Acrylic, also known as PMMA or plexiglass, is derived from English acrylic (acrylic plastic), commonly known as "specially treated plexiglass", and its chemical name is polymethyl methacrylate. The research and development of acrylic has a history of more than 100 years. [0003] Acrylic is a polymer thermoplastic material developed earlier, and its processing and molding are more convenient. The molding methods of acrylic materials mainly include casting molding and extrusion molding. After molding, acrylic materials can also be softened by reheating. Acrylic has good transparency and light transmittance, and its light transmittance can reach 92%. It has good chemical stability and weather resistance, and is highly adaptable to the natural environment. Howeve...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F222/14C08F222/06C08F2/44C08K3/16C08K3/26C08K3/04C08K3/34C08K5/09C08K7/14C08K13/04B29D7/01
CPCC08F220/14C08F2/44C08K3/16C08K3/26C08K3/042C08K3/34C08K5/09C08K7/14C08K13/04B29D7/01C08K2201/011C08K2003/162C08K2003/265C08F222/102C08F222/06
Inventor 朱家兴朱春燕陈惠芳李家许
Owner 苏州西雅克水族科技有限公司
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