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Glass fiber reinforced PC/PE alloy material and preparation method thereof

An alloy material and glass fiber technology, which is applied in the field of glass fiber reinforced PC/PE alloy material and its preparation, can solve the problem of reducing the practicability, toughness, strength, thermal deformation temperature deterioration and PC/PE alloy performance of PC/PE alloy material. Low and other problems, to achieve the effect of improving glass fiber distribution, improving affinity, and low cost

Inactive Publication Date: 2012-06-13
SHENZHEN KEJU NEW MATERIAL
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Problems solved by technology

However, the reinforcement effect of these inorganic filler materials on PC is far lower than that of glass fiber, and the toughness, strength, and heat distortion temperature are greatly deteriorated, especially for some structural components, such as tapping screws and buckle parts. 1. Structures that need to be stressed, such as electric meter casings and other products that require high heat resistance, have a very limited range of use
[0006] At present, there are some reports and progress in the industry on the use of PC / PE alloy materials to reduce the processing viscosity of PC, but the compatibility of the two components of PC and PE is difficult to solve, resulting in low performance of PC / PE alloy. Improve the practicability of PC / PE alloy materials

Method used

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  • Glass fiber reinforced PC/PE alloy material and preparation method thereof
  • Glass fiber reinforced PC/PE alloy material and preparation method thereof
  • Glass fiber reinforced PC/PE alloy material and preparation method thereof

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Embodiment Construction

[0058] In the glass fiber reinforced PC / PE alloy material involved in the present invention, the method of adding polyethylene (PE) components to the PC material to obtain the PC / PE alloy is used to reduce the processing viscosity of the glass fiber reinforced PC material and improve the Its processing fluidity. At the same time, adding PE to PC can also improve the thick-wall impact resistance of glass fiber reinforced PC materials.

[0059] The PE used to prepare the PC / PE alloy can be high-density polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE). Different types of PE (such as differences in melting point and fluidity) have different effects on the structure and properties of the resulting PC / PE alloy material. Relatively speaking, the viscosity of HDPE is higher, which is closer to that of PC, so it is more suitable for blending with PC to form an alloy.

[0060] The molecular chain structure, morphology, solubility parame...

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Abstract

The invention discloses a glass fiber reinforced PC / PE alloy material and a preparation method thereof. The glass fiber reinforced PC / PE alloy material comprises the following components in parts by weight: 100 parts of polycarbonate, 2-20 parts of high-density polyethylene, 1-10 parts of maleic anhydride-glycidyl methacrylate double-grafted high-density polyethylene, 0.5-5 parts of talcum powder, 5-25 parts of glass fiber and 0.1-2 parts of processing aid. In the invention, because the home-made maleic anhydride-glycidyl methacrylate double-grafted high-density polyethylene is used as compatilizer and toughening modifier of PC / PE in the glass fiber reinforced PC material, the affinity of a glass fiber and a resin matrix is improved, thereby obtaining the glass fiber reinforced PC / PE alloy material with good surface appearance and better performance.

Description

[technical field] [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced PC / PE alloy material and a preparation method thereof. [Background technique] [0002] Glass fiber reinforced PC materials are widely used in automobiles, electronic appliances, home appliance materials and other fields due to their good strength, toughness and thermal properties. However, since PC is a non-crystalline material and has a high viscosity during processing, it is difficult for the glass fibers in glass fiber-reinforced PC materials to be arranged in a certain direction, and the surface of the product obtained by injection molding is prone to floating fibers, roughness and unevenness. problems such as smoothness. [0003] At present, the general method to solve the floating fiber problem on the surface of glass fiber reinforced PC is: [0004] 1. Add a certain proportion of high fluidity polyester with good compatibility with PC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L23/06C08L51/06C08K9/04C08K9/06C08K3/34C08K7/14B29C47/92B29C48/92
CPCB29B9/14B29B7/90B29B9/06B29C48/04B29C48/92B29C2948/92514B29C2948/92561B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 徐东徐永谭善兴
Owner SHENZHEN KEJU NEW MATERIAL
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