Improved plastic and preparation method thereof

A technology for plastics and modification, applied in the field of modified plastics and their preparation, can solve the problems such as the inability to improve the wettability of plastics and fibers, the poor performance of modified plastics, and the weak interfacial adhesion, and achieve a sufficient phase. Capacitance, strong interfacial adhesion and strong interfacial adhesion

Active Publication Date: 2018-10-19
湖南省塑坤新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials used in this invention are many, the production cost is high, and the wettability between plastics and fiber can not be improved well with silane coupling agent modified glass fiber, the interfacial cohesive force between the two is weaker, finally The resulting modified plastic has poorer properties

Method used

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  • Improved plastic and preparation method thereof

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Effect test

Embodiment 1

[0033] A modified plastic, including the following components in mass percentage: waste plastic 75%, glass fiber 10%, waste ceramic powder 5%, silane coupling agent KH5501%, compatibilizer maleic anhydride 1%, SBS 3%, Dimethyldiazophenoxysilane 1%, Methyl Methacrylate 4%.

[0034] Preparation method: 1) Add waste ceramic powder, glass fiber, and dimethyl diazophenoxysilane into a mixer and mix at a mixing temperature of 100°C for 30 minutes, then cool down to 60°C and add methyl Methyl acrylate, fully mixed for 1 hour to obtain a mixture;

[0035] 2) Add the dried waste plastics and SBS into the mixer according to the stated ratio and mix them. The mixing temperature is 120°C. After fully mixing, the temperature is raised to 140°C. Add the mixture obtained in step 1), silane coupling agent KH550 and The compatibilizer maleic anhydride is fully mixed to obtain a mixture;

[0036] 3) Place the mixture obtained in step 2) in a twin-screw extruder for extrusion and granulation t...

Embodiment 2

[0038]A modified plastic, including the following components in mass percentage: waste plastic 66%, glass fiber 12%, waste ceramic powder 10%, silane coupling agent KH5500.5%, compatibilizer maleic anhydride 2% , SBS 2%, Dimethylbisazophenoxysilane 1.5%, Methyl Methacrylate 6%.

[0039] Preparation method: 1) Add waste ceramic powder, glass fiber, and dimethyl diazophenoxysilane into a mixer and mix at a mixing temperature of 120°C for 20 minutes, then cool down to 80°C and add methyl Methyl acrylate, fully mixed for 1.2h to obtain the mixture;

[0040] 2) Add the dried waste plastics and SBS into the mixer according to the stated ratio and mix them. The mixing temperature is 110°C. After fully mixing, the temperature is raised to 140°C. Add the mixture obtained in step 1), silane coupling agent KH550 and The compatibilizer maleic anhydride is fully mixed to obtain a mixture;

[0041] 3) Place the mixture obtained in step 2) in a twin-screw extruder for extrusion and granula...

Embodiment 3

[0043] A modified plastic, including the following components in mass percentage: waste plastic 60%, glass fiber 15%, waste ceramic powder 6%, silane coupling agent KH5501%, compatibilizer maleic anhydride 3%, SBS 5%, Dimethyldiazophenoxysilane 2%, Methyl Methacrylate 8%.

[0044] Preparation method: 1) Add waste ceramic powder, glass fiber, and dimethyl diazophenoxysilane into a mixer and mix at a mixing temperature of 110°C for 25 minutes, then cool down to 70°C and add methyl Methyl acrylate, fully mixed for 1.5h to obtain the mixture;

[0045] 2) Add the dried waste plastics and SBS into the mixer according to the stated ratio and mix them. The mixing temperature is 115°C. After fully mixing, the temperature is raised to 130°C. Add the mixture obtained in step 1), silane coupling agent KH550 and The compatibilizer maleic anhydride is fully mixed to obtain a mixture;

[0046] 3) Place the mixture obtained in step 2) in a twin-screw extruder for extrusion and granulation t...

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Abstract

The invention discloses improved plastic, which is prepared from the following ingredients in percentage by mass: 60 to 75 percent of waste and old plastics, 10 to 15 percent of glass fiber, 5 to 10 percent of waste and old ceramic powder, 0.5 to 1 percent of silane coupling agents, 1 to 3 percent of compatilizers, 2 to 5 percent of SBS, 1 to 2 percent of dimethyldiazo phenol oxysilane and 4 to 8percent of methyl methacrylate. The dimethyldiazo phenol oxysilane, the methyl methacrylate and other raw materials are added to be mixed; the glass fiber and ceramic powder surface can be fully modified; the condition that when the coupling agent is used for treating the glass fiber surface, the expected effect cannot be achieved is avoided; greater affinity is realized between the modified glassfiber and a plastic substrate; the glass fiber, the ceramic powder and the plastic have full compatibility; the interface bonding force is strong; the mechanical property of the finally obtained modified plastic is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a modified plastic and a preparation method thereof. Background technique [0002] The main raw material of plastic products comes from petroleum. The world's petroleum resources are limited and will become more and more scarce as time goes by. Adding inorganic powder with rich resources and low price to plastic products (filling modification) is an effective means to reduce the production cost of plastic products and save resources. However, adding modified inorganic powder to plastics will make plastic products brittle and reduce toughness in most cases, regardless of the amount added. The more the amount added, the more severe the decrease in toughness. At present, glass fibers are commonly used to reinforce plastics. The strength and rigidity of glass fibers are used to effectively transmit stress between the matrix and the interface, so that the matri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L53/02C08K7/14C08K9/06C08K9/04C08K3/00
CPCC08L101/00C08L2201/02C08L2207/20C08L53/02C08K7/14C08K9/06C08K9/04C08K3/00
Inventor 游一兰方映杰陈建平游和求
Owner 湖南省塑坤新材料有限公司
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