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Long fiberglass reinforced polypropylene automobile water tank bracket

A technology of long glass fibers and automobile water tanks, which is applied to vehicle parts, transportation and packaging, power devices, etc., can solve the problems of difficulty in remanufacturing automobile water tank brackets, and achieve high strength, simple preparation methods, and excellent impact resistance.

Active Publication Date: 2014-02-12
SUZHOU WANLONG AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the defects of heavy and difficult manufacture of automobile water tank brackets in the prior art, and provides a glass long fiber reinforced polypropylene automobile water tank bracket with high strength, high modulus, high toughness and excellent processability to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 65 parts of random copolymerized polypropylene with a melt index of 3.2g / 10min, 3 parts of homopolypropylene with a melt index of 7g / 10min, 5 parts of polypropylene grafted with maleic anhydride with a graft rate of 0.7%, 1.5 parts Antioxidant 1010 and 3.2 parts of di-tert-amyl peroxide are mixed evenly together, and the mixed material is added into the twin-screw extruder from the feeding port, and at the same time, 19 Long glass fibers, wherein the long glass fibers are quartz fibers with a single filament diameter of 15um and a length of 10-12mm, and can be melted and extruded at 180-190°C to obtain high-performance glass-long fiber-reinforced polypropylene materials. After testing, the melt index (200°C, load 2.26Kg) of the material is 35g / 10min, the tensile strength is 107MPa, the elongation at break is 9%, the Young's modulus is 6.8GPa, and the notched impact strength is 28kJ / m2, , The heat distortion temperature is 170 ℃. Among them, the melt index of the materia...

Embodiment 2

[0033] 68 parts of random copolymerized polypropylene with a melt index of 4.5g / 10min, 5 parts of homopolypropylene with a melt index of 6g / 10min, 6 parts of polypropylene grafted with maleic anhydride with a grafting rate of 0.6%, 0.8 parts Antioxidant 1010 and 3.5 parts of tert-butyl peroxybenzoate were mixed evenly, and the mixed material was added into the twin-screw extruder from the feeding port, and 21 Long glass fibers, wherein the long glass fibers are quartz fibers with a single filament diameter of 15um and a length of 10-12mm, and can be melted and extruded at 180-190°C to obtain high-performance glass-long fiber-reinforced polypropylene materials. After testing, the melt index (200°C, load 2.26Kg) of the material is 40g / 10min, the tensile strength is 120MPa, the elongation at break is 8%, the Young's modulus is 7.1GPa, and the notched impact strength is 33kJ / m 2, , The heat distortion temperature is 180 ℃. Among them, the melt index of the material prepared in th...

Embodiment 3

[0035] 67 parts of random copolymerized polypropylene with a melt index of 4.0g / 10min, 4 parts of homopolypropylene with a melt index of 6.5g / 10min, 5.5 parts of polypropylene grafted with maleic anhydride with a graft rate of 0.8%, 1.25 1 part of antioxidant B series and 3.75 parts of tert-butyl peroxybenzoate are mixed evenly, and the mixed material is added into the twin-screw extruder from the feed port, and at the same time, it is fed from the glass fiber inlet above the barrel wall of the screw melting section. Add 20 parts of long glass fiber, wherein the long glass fiber is a quartz fiber with a single filament diameter of 15um and a length of 10-12mm, and melt extrusion at 180-190°C to obtain a high-performance glass long fiber reinforced polypropylene material . After testing, the melt index (200°C, load 2.26Kg) of the material is 45g / 10min, the tensile strength is 135MPa, the elongation at break is 7.5%, the Young's modulus is 8.0GPa, and the notched impact strength...

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Abstract

The invention discloses a long fiberglass reinforced polypropylene automobile water tank bracket, which is manufactured from a long fiberglass reinforced polypropylene material, wherein the long fiberglass reinforced polypropylene material comprises the following components in parts by weight: 65 to 68 parts of polypropylene random copolymer, 3 to 5 parts of homo-polypropylene, 19 to 21 parts of long fiberglass, 5 to 6 parts of compatilizer and 4 to 5 parts of additive. According to the long fiberglass reinforced polypropylene automobile water tank bracket, a preparation method is simple; the long fiberglass reinforced polypropylene automobile water tank bracket is high in comprehensive performance, impact resistance, modulus, strength, dimensional stability, abrasion resistance, fatigue resistance and chemical resistance, isotropic and low in shrinkage and creep, and has a thermal expansion coefficient similar to that of metal.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to a glass long fiber reinforced polypropylene automobile water tank bracket. Background technique [0002] Energy saving and emission reduction has become a collective topic of global automobile companies, among which, automobile lightweight is the most effective way, which is very important for saving energy and reducing exhaust emissions. It is the most direct and effective method to replace traditional metal materials with plastic materials. [0003] Polypropylene has rich raw materials, simple synthesis process, low price, good overall performance of resin, and wide range of uses. It is a very important general-purpose plastic. However, polypropylene has poor low-temperature toughness, strong notch sensitivity, and low mechanical properties, which also limit its application in functional structural parts (Wang Duoren, Synthetic Resin and Engineering Plastics Pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/12C08L51/06C08K13/04C08K7/14C08K5/14B60K11/02B29C47/92B29C45/00B29C48/92
CPCB29C48/92B29C2948/92704B60K11/02C08K2201/003C08K2201/004C08L23/14C08L2205/03C08L2207/14C08L23/12C08L51/06C08K13/04C08K7/14C08K5/14B29B7/46B29B7/72B29B7/90B29C48/40B29C2948/92895
Inventor 冯兵金一峰徐玲殷永明李春华
Owner SUZHOU WANLONG AUTO PARTS
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