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Hydrolysis-resistant glass fiber reinforced polypropylene composite material for automobile kettle and its preparation process

A composite material and polypropylene technology, which is applied in the field of hydrolysis-resistant glass fiber reinforced polypropylene composite materials for automobile water bottles and its preparation technology, can solve the problem of poor welding performance and hydrolytic stability, which cannot meet the further requirements of automobile water bottles, and cannot meet Requirements for car kettle materials and other issues, to achieve the effect of overcoming insufficient heat resistance, excellent heat resistance, and preventing extraction

Active Publication Date: 2015-12-23
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the heat resistance of polypropylene is poor, and it cannot meet the further requirements of the car kettle for materials.
In order to improve the heat resistance of polypropylene, the commonly used method is to reinforce polypropylene with glass fiber. The heat resistance of polypropylene reinforced with glass fiber is greatly increased, which can fully meet the heat resistance requirements of automobile kettles. However, due to In the presence of glass fiber, the welding performance and hydrolytic stability of glass fiber reinforced polypropylene will become very poor, so it cannot meet the material requirements of car kettles

Method used

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  • Hydrolysis-resistant glass fiber reinforced polypropylene composite material for automobile kettle and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In this embodiment, the hydrolysis-resistant glass fiber reinforced polypropylene composite material for automobile kettles is prepared as follows:

[0022] Firstly, 85 parts of polypropylene PPT30S, 0.2 parts of phenolic heat stabilizer 1790, 0.3 parts of phosphite heat stabilizer 627A, 0.3 parts of auxiliary EBS, 0.2 parts of nucleating agent TMP-5, 2 parts of metallocene polypropylene elastic Body VM6202, 2 parts of maleic anhydride grafted polypropylene CA-100 are put into a twin-screw extruder with a length-to-diameter ratio of 40:1 for melt mixing and dispersion;

[0023] Then 10 parts of alkali-free chopped glass fiber 305K is accurately fed into the twin-screw extruder through a loss-in-weight metering scale from the side feeding; finally, it is extruded and pelletized by the twin-screw extruder at 210°C to obtain The hydrolysis-resistant glass fiber reinforced polypropylene composite material for the car kettle.

Embodiment 2

[0025] In this embodiment, the hydrolysis-resistant glass fiber reinforced polypropylene composite material for automobile kettles is prepared as follows:

[0026] First, 70 parts of polypropylene PPS700, 0.5 parts of phenolic heat stabilizer 1790, 0.5 parts of phosphite heat stabilizer 627A, 0.5 parts of auxiliary EB-FF, 0.5 parts of nucleating agent HPN-20E, 3 parts of metallocene polymer Propylene elastomer VM6102, 5 parts of maleic anhydride grafted polypropylene 1001CN are put into a twin-screw extruder with a length-to-diameter ratio of 40:1 for melt mixing and dispersion;

[0027] Then 20 parts of alkali-free chopped glass fiber 508A is accurately fed into the twin-screw extruder through a loss-in-weight metering scale from the side feeding; finally, it is extruded and pelletized by the twin-screw extruder at 220°C to obtain The hydrolysis-resistant glass fiber reinforced polypropylene composite material for the car kettle.

Embodiment 3

[0029] In this embodiment, the hydrolysis-resistant glass fiber reinforced polypropylene composite material for automobile kettles is prepared as follows:

[0030] First, 60.5 parts of polypropylene PPS900, 0.7 parts of phenolic heat stabilizer 1790, 0.8 parts of thioester heat stabilizer 412S, 1 part of auxiliary EB-FF, 1 part of nucleating agent 3988, 4 parts of metallocene polypropylene elastic Body VM3980, 7 parts of maleic anhydride grafted polypropylene 1001 were put into a twin-screw extruder with a length-to-diameter ratio of 40:1 for melt mixing and dispersion;

[0031] Then 25 parts of alkali-free chopped glass fiber 248A is accurately fed into the twin-screw extruder through a loss-in-weight metering scale from the side feeding; finally, it is extruded and pelletized by the twin-screw extruder at 230°C to obtain The hydrolysis-resistant glass fiber reinforced polypropylene composite material for the car kettle.

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Abstract

The invention discloses a hydrolysis-resistant glass fiber reinforced polypropylene composite material for a car water kettle and a preparation process thereof. The composite material comprises the following components in percentage by weight: 48-86% of polypropylene, 2-6% of metallocene polypropylene elastomer, 0-2% of a thermal stabilizer, 0-2% of an additive, 0-2% of a nucleating agent, 2-10% of a compatilizer and 10-30% of chopped glass fiber. The metallocene polypropylene elastomer is adopted to modify polypropylene, so that the shortcoming of poor heat resistance of polypropylene can be overcome and the welding performance of polypropylene at a welding interface is enhanced; and in addition, the adopted thermal stabilizer can be used for inhibiting degradation in the processing process and preventing hot water from extracting an antioxidant system so as to effectively improve the ageing resistance of the water kettle material. The prepared composite material is excellent in heat resistance, high in rigidity, excellent in hydrolysis resistance and good in bonding performance, and satisfactorily meets the production demand of the car water kettle.

Description

Technical field [0001] The invention relates to the processing technical field of a hydrolysis-resistant glass fiber reinforced polypropylene composite material, in particular to a hydrolysis-resistant glass fiber reinforced polypropylene composite material for an automobile kettle and a preparation process thereof. Background technique [0002] At present, the processing technology of automobile kettle is mainly to first use polypropylene blow molding or injection molding to form upper and lower kettle bodies, and then weld the formed upper and lower kettle bodies together to form a complete part. [0003] However, polypropylene has poor heat resistance and cannot meet the further requirements for materials for automobile kettles. In order to improve the heat resistance of polypropylene, the commonly used method is to strengthen the polypropylene with glass fiber. The heat resistance of the glass fiber reinforced polypropylene is greatly increased, which can fully meet the heat re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/14B29C47/92B29C48/92
CPCB29B7/46B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
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 JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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