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Preparation method of PC material

A technology of raw materials and main materials, applied in the field of preparation of PC materials, can solve the problems affecting the application of PC materials, poor hydrolytic stability, erosion, etc., to improve hydrolysis resistance stability, improve performance and service life, and reduce erosion. Effect

Inactive Publication Date: 2019-09-20
苏州科瑞奇塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] PC material has good flame retardancy and oxidation resistance, and it has good wear resistance, but the existing PC material has poor hydrolysis stability, and it will turn yellow when exposed to ultraviolet light for a long time, and is easily affected by organic solvents. These shortcomings have affected the application of PC materials in different industries

Method used

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  • Preparation method of PC material
  • Preparation method of PC material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 50 parts of PC, 10 parts of polyvinyl chloride, 5 parts of polyethylene, 3 parts of copolyester, 9 parts of nanometer active light calcium carbonate, 5 parts of acrylate and 2 parts of diphenyl phosphite for use;

[0044] First add PC to the dryer, and dry it at 120℃~130℃ for 5~6h, then add PC to the mixer for heating, the heating temperature is 90℃~100℃, make the PC melt, cooperate with stirring , The stirring speed is 50~60r / min, so that the PC is evenly and fully melted, the temperature inside the mixer is adjusted to 80℃~90℃, and the polyvinyl chloride, polyethylene and nano-level active light calcium carbonate are added to the mixer In the PC, adjust the stirring speed to 100~120r / min, perform preliminary material mixing for 3~5min, reduce the temperature in the mixer to 60℃~70℃, and add copolyester, acrylate and phosphorous acid to it Diphenyl ester, adjust the stirring speed to 80-100r / min, mix the whole material for 3-5min, add the whole mixed material into t...

Embodiment 2

[0051] Weigh 52 parts of PC, 11 parts of polyvinyl chloride, 6 parts of polyethylene, 3.5 parts of copolyester, 9.5 parts of nanometer active light calcium carbonate, 6 parts of acrylate and 2 parts of diphenyl phosphite for use;

[0052] First add PC to the dryer, and dry it at 120℃~130℃ for 5~6h, then add PC to the mixer for heating, the heating temperature is 90℃~100℃, make the PC melt, cooperate with stirring , The stirring speed is 50~60r / min, so that the PC is evenly and fully melted, the temperature inside the mixer is adjusted to 80℃~90℃, and the polyvinyl chloride, polyethylene and nano-level active light calcium carbonate are added to the mixer In the PC, adjust the stirring speed to 100~120r / min, perform preliminary material mixing for 3~5min, reduce the temperature in the mixer to 60℃~70℃, and add copolyester, acrylate and phosphorous acid to it Diphenyl ester, adjust the stirring speed to 80-100r / min, mix the whole material for 3-5min, add the whole mixed material in...

Embodiment 3

[0059] Weigh 54 parts of PC, 12 parts of polyvinyl chloride, 7 parts of polyethylene, 4 parts of copolyester, 10 parts of nanometer active light calcium carbonate, 7 parts of acrylate and 2.5 parts of diphenyl phosphite for use;

[0060] First add PC to the dryer, and dry it at 120℃~130℃ for 5~6h, then add PC to the mixer for heating, the heating temperature is 90℃~100℃, make the PC melt, cooperate with stirring , The stirring speed is 50~60r / min, so that the PC is evenly and fully melted, the temperature inside the mixer is adjusted to 80℃~90℃, and the polyvinyl chloride, polyethylene and nano-level active light calcium carbonate are added to the mixer In the PC, adjust the stirring speed to 100~120r / min, perform preliminary material mixing for 3~5min, reduce the temperature in the mixer to 60℃~70℃, and add copolyester, acrylate and phosphorous acid to it Diphenyl ester, adjust the stirring speed to 80-100r / min, mix the whole material for 3-5min, add the whole mixed material int...

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Abstract

The invention relates to a preparation technology of engineering plastics, in particular to a preparation method of a PC material. The PC material can improve hydrolysis resistance stability and ultraviolet resistance strength, can reduce corrosion of chemicals such as organic solvents and the like, and expands the application range. The method comprises the following steps: (1) proportion of raw materials: respectively weighing PC, polyvinyl chloride, polyethylene, copolyester, nano-active light calcium carbonate, acrylate, and diphenyl phosphite for later use; (2) drying the main material; (3) pretreatment of the main material: adding the PC into a mixing machine, and heating the PC to uniformly and fully melt the PC; (4) initial mixing: adjusting the internal temperature of the mixer to 80-90 DEG C, and adding polyvinyl chloride, polyethylene and nano-active light calcium carbonate into PC in the mixer; (5) overall mixing: reducing the temperature in the mixing machine to 60-70 DEG C, and adding copolyester, acrylate and diphenyl phosphite into the mixture; (6) mixing all the components; and (7) performing extrusive granulation.

Description

Technical field [0001] The invention relates to the preparation technology of engineering plastics, in particular to a preparation method of PC material. Background technique [0002] Polycarbonate (PC for short) is a high molecular weight polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, aliphatic and The mechanical properties of aliphatic-aromatic polycarbonate are relatively low, which limits its application in engineering plastics. Only aromatic polycarbonate has obtained industrial production. Due to the special structure of polycarbonate, it has become the top five The fastest growing general engineering plastics in engineering plastics. [0003] PC materials have good flame retardancy and oxidation resistance, and they have good abrasion resistance, but the existing PC materials have poor hydrolytic stability, and will turn yel...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L27/06C08L23/06C08L67/00C08K3/26C08K5/526
CPCC08K2003/265C08K2201/011C08L69/00C08L2201/08C08L2205/035C08L27/06C08L23/06C08L67/00C08K3/26C08K5/526
Inventor 李浩东
Owner 苏州科瑞奇塑胶有限公司
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