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Production method of heat-resistant modifier acr for pvc sheet

A technology of heat-resistant modifier and production method, which is applied in chemical instruments and methods, chemical/physical/physicochemical fixed reactors, chemical/physical processes, etc., and can solve the problem of poor heat resistance of modifier ACR and reaction There are safety hazards and other problems in the equipment, and the effect of improving the resistance to 80 degrees Celsius is achieved

Active Publication Date: 2022-05-13
山东宏福化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for making a PVC sheet heat-resistant modifier ACR, which solves the problems of poor heat resistance of the modifier ACR and potential safety hazards in reaction equipment

Method used

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  • Production method of heat-resistant modifier acr for pvc sheet
  • Production method of heat-resistant modifier acr for pvc sheet
  • Production method of heat-resistant modifier acr for pvc sheet

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Embodiment 1

[0026] Such as Figure 1-3 As shown, the embodiment of the present invention provides the preparation method of PVC sheet heat-resistant modifier ACR, comprises following material, weighs each raw material by weight according to following formula: 35 parts of styrene, 47 parts of acrylonitrile, methacrylate 40 parts of polystyrene, 20 parts of α-methylstyrene, 30 parts of glycidyl methacrylate, by copolymerizing styrene, acrylonitrile, methacrylates, α-methylstyrene and glycidyl methacrylate The preparation method of the PVC sheet heat-resistant modifier ACR is obtained, and the copolymerization reaction equipment of styrene, acrylonitrile, methacrylate, α-methylstyrene and glycidyl methacrylate is anti-leakage reaction equipment.

[0027] The copolymerization pressure of styrene, acrylonitrile, methacrylates, α-methylstyrene and glycidyl methacrylate is normal pressure, and the copolymerization temperature is 75 degrees Celsius. Glycidyl methacrylate is synthesized by a phas...

Embodiment 2

[0031] Glycidyl methacrylate is synthesized by an esterification ring-closing method. First, methacrylic acid and epichlorohydrin are subjected to a ring-opening esterification reaction to generate 2-hydroxyl-3-chloropropyl methacrylate. Then dehydrochlorination ring-closing reaction of 2-hydroxyl-3-chloropropyl methacrylate in the presence of sodium hydroxide solid or aqueous solution, or reflux in acetone solution of potassium carbonate to obtain the product.

Embodiment 3

[0033] The raw materials were weighed according to the following formula: 37 parts of styrene, 49 parts of acrylonitrile, 42 parts of methacrylates, 25 parts of α-methylstyrene, and 33 parts of glycidyl methacrylate.

[0034] The copolymerization pressure of styrene, acrylonitrile, methacrylates, α-methylstyrene and glycidyl methacrylate is normal pressure, and the copolymerization temperature is 77 degrees centigrade.

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Abstract

The invention provides a method for preparing a PVC sheet heat-resistant modifier ACR, and relates to the technical field of modifier production. The preparation method of the PVC sheet heat-resistant modifier ACR includes the following materials, and the raw materials are weighed according to the formula: 35 parts of styrene, 47 parts of acrylonitrile, 40 parts of methacrylates, α-methyl 20 parts of styrene, 30 parts of glycidyl methacrylate, by copolymerizing styrene, acrylonitrile, methacrylates, α-methylstyrene and glycidyl methacrylate to obtain heat-resistant modified PVC sheet The production method of agent ACR, styrene, acrylonitrile, methacrylic acid esters, α-methylstyrene and glycidyl methacrylate copolymerization reaction equipment is anti-leakage reaction equipment. The invention can make the modifier ACR of the PVC sheet have good heat resistance, and the reaction equipment is safer during the polymerization reaction, without causing leakage of inflammable and harmful substances.

Description

technical field [0001] The invention relates to the technical field of modifying agent production, in particular to a method for preparing a PVC sheet heat-resistant modifying agent ACR. Background technique [0002] PVC board is a board made of PVC as a raw material with a honeycomb mesh structure in cross section, and it is a vacuum blister film. It is used for the surface packaging of various panels, so it is also called decorative film and adhesive film, and is used in many industries such as building materials, packaging, and medicine. Among them, the building materials industry accounts for the largest proportion, 60%, followed by the packaging industry, and several other industries with small-scale applications. According to the degree of softness and hardness, it can be divided into soft PVC and hard PVC. According to the production process, it can be divided into PVC crust foam board and PVC free foam board. The PVC processing modifier ACR belongs to the core-shell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/44C08F212/08C08F220/10C08F212/12C08F220/32C08L27/06C08L55/02C08L33/20B01J19/18B01J4/02
CPCC08F220/44C08L27/06C08L55/02B01J19/18B01J4/02B01J2204/002C08L2201/08C08F212/08C08F220/10C08F212/12C08F220/325C08L33/20
Inventor 吴瑞滨董涛张庆涛沈阳王正亮陈桂鑫
Owner 山东宏福化学有限公司
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