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Glass fiber reinforced styrene/maleic anhydride composite and preparation method thereof

A maleic anhydride and composite material technology, applied in the field of polymer materials, can solve problems such as difficulty in material upgrading, warpage of glass fiber reinforced polypropylene, poor weld line strength, etc., and achieve aging resistance, low odor, high resistance Excellent heat and aging resistance

Inactive Publication Date: 2013-02-13
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, high-crystalline polypropylene and glass fiber-reinforced polypropylene are mainly used for automotive air-conditioning fans. High-crystalline polypropylene materials have insufficient heat resistance, and glass fiber-reinforced polypropylene has been difficult to meet due to warpage, odor problems, and poor weld line strength. The development of automotive air-conditioning fans further upgrades materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 89.7 kg of SMA M14, 0.1 kg of phenolic heat stabilizer Irganox1010, 0.1 kg of phosphite antioxidant Ultranox627A, and 0.1 kg of processing aid EBS were melt mixed and dispersed in a twin-screw extruder with a length-to-diameter ratio of 60:1. The rotation speed is 200r / min; then 10 kg of chopped glass fiber 304A produced by Chongqing Fiberglass Co., Ltd. is fed into the twin-screw extruder from the side feeding port through a weight-loss weighing scale. The temperature was respectively set at 230°C, 240°C, 250°C, 250°C, 260°C, and 265°C, and extruded and granulated to obtain the product.

[0025] Test its performance according to the corresponding standards, the list is as follows:

[0026] Table 1

[0027] performance

Embodiment 2

[0029] Melt 78.5 kg of SMA M25, 0.5 kg of phenolic heat stabilizer Irganox1010, 0.5 kg of phosphite heat stabilizer Irganox168, and 0.5 kg of processing aid EB-FF in a twin-screw extruder with a length-to-diameter ratio of 30:1 Mixing and dispersing, the screw speed is 220r / min; then 20 kg of chopped glass fiber 304A produced by Chongqing Fiberglass Co., Ltd. is fed into the twin-screw extruder from the side feeding port through the weight loss weighing scale, and the extruders one to six The temperature of the section is respectively set to 230°C, 240°C, 250°C, 250°C, 260°C, 265°C, extruded and granulated to obtain the product.

[0030] Test its performance according to the corresponding standards, the list is as follows:

[0031] Table 2

[0032] performance

[0033] Notched impact strength

Embodiment 3

[0035] 67.5 kg of SMA214, 0.7 kg of phenolic heat stabilizer Irganox1010, 0.8 kg of thioester heat stabilizer 412S, and 1 kg of processing aid EBS were melted, mixed and dispersed in a twin-screw extruder with a length-to-diameter ratio of 40:1. The screw speed is 240r / min; then 30 kg of chopped glass fiber HP3540 produced by American PPG Industries is fed into the twin-screw extruder from the side feeding port through a weight-loss weighing scale, and the temperatures of the first to sixth sections of the extruder are respectively Set at 230°C, 240°C, 250°C, 250°C, 260°C, 265°C, extrude and granulate, and finally obtain the product.

[0036] Test its performance according to the corresponding standards, the list is as follows:

[0037] table 3

[0038] performance

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PUM

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Abstract

The invention discloses a glass fiber reinforced styrene / maleic anhydride composite and a preparation method thereof. The glass fiber reinforced styrene / maleic anhydride composite is characterized by being prepared from the following raw materials by weight percentages: 46-90 percent of SMA, 0-2 percent of heat stabilizer, 0-2 percent of processing agent and 10-50 percent of chopped flat glass fiber. The preparation method comprises the following steps that the SMA, the heat stabilizer and the processing agent are proportionally added into a double-screw extruder to be molten, mixed and dispersed, meanwhile, the chopped flat glass fiber is fed into the double-screw extruder from a side feeding mouth to be extruded and pelletized, and the product is obtained. The composite has the advantages of high stiffness, high heat resistance, high size stabilizer, good aging resistance and low smell and meets the requirements of vehicle air conditioners as follows: high stiffness, heat resistance, aging resistance size stabilizer and low smell, and the high performance of the vehicle air conditioner material is realized.

Description

technical field [0001] The invention relates to a special glass fiber reinforced styrene / maleic anhydride (SMA) composite material for automobile air-conditioning fans and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] With the development of the automobile industry, glass fiber reinforced SMA materials are gradually being used in functional structural parts of automobile interiors due to their excellent rigidity, heat resistance, dimensional stability, low warpage, high fluidity, aging resistance and low odor. a wide range of applications. [0003] Automotive air-conditioning fans require materials with high rigidity, high heat resistance, high dimensional stability, excellent aging resistance, and low odor. At present, high-crystalline polypropylene and glass fiber-reinforced polypropylene are mainly used for automotive air-conditioning fans. High-crystalline polypropylene materials have insufficient heat...

Claims

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Application Information

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IPC IPC(8): C08L35/06C08K13/04C08K7/14C08J5/08B29B9/06
Inventor 孙刚周英辉李国明程文超李欣李志平陈延安丁超罗忠富
Owner SHANGHAI KINGFA SCI & TECH
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