Long glass fiber reinforced polypropylene material and preparation thereof

A long glass fiber, polypropylene material technology, applied in the direction of coating, can solve the problems of glass fiber exposure, unsatisfactory impregnation effect, unsatisfactory product performance, etc., to reduce the cost of raw materials, easy to control the production process, and solve the problem of exposure Effect

Active Publication Date: 2009-01-07
SUZHOU HECHANG POLYMERIC MATERIALS
View PDF0 Cites 95 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the production of LGFPP, the impregnation effect of glass fiber in polypropylene matrix is ​​not ideal for most products, and the dispersion and orientation of glass fiber i

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Long glass fiber reinforced polypropylene material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 54.4 parts of medium-melt index homopolypropylene, 5 parts of maleic anhydride grafted polypropylene compatibilizer, 4 parts of PP cooling masterbatch, 0.1 part of antioxidant 1790 and 0.2 part of antioxidant DLTDP, 1 part of ethylene double hard Fatty amide is added into the mixer to make it fully mixed evenly. The mixture is fed into the twin-screw extruder through the feeding port. The processing temperature is 185-230°C. The temperature control of the twin-screw extruder is equipped with six sections. The extrusion temperature of several sections is 210-230°C; the residence time of the material in the twin-screw extruder is 8 minutes, and the speed of the main engine is 300-350r.min -1 ; Then extrude the melt through the die of the twin-screw extruder to form a molten pool. Preheat and dry 35 parts of continuous long glass fibers to make the surface temperature reach 65-80°C, then treat the surface of the long glass fibers with a glass fiber surface treatment devic...

Embodiment 2

[0029] 43.6 parts of medium melt finger copolymerized polypropylene, 10 parts of maleic anhydride grafted polypropylene compatibilizer, 3 parts of PP cooling masterbatch, 0.2 part of antioxidant 1098 and 0.4 part of antioxidant 168, 2 parts of high molecular weight polypropylene wax Add to the mixer to mix well. The mixture is fed into the twin-screw extruder through the feeding port. The processing temperature is 180-230°C. The temperature control of the twin-screw extruder has six sections. The extrusion temperature of the first and second sections is 180-200°C. Other The extrusion temperature of several sections is 200-230°C; the residence time of the material in the twin-screw extruder is 3 minutes, and the speed of the main engine is 250-350r.min -1 ; Then extrude the melt through the die of the twin-screw extruder to form a molten pool. Preheat and dry 40 parts of continuous long glass fibers to make the surface temperature reach 60-75°C; then use a glass fiber surface ...

Embodiment 3

[0031] 15 parts of medium-melt finger copolymerized polypropylene, 23 parts of medium-melt finger homopolypropylene, 6 parts of maleic anhydride grafted polypropylene compatibilizer, 4 parts of PP cooling masterbatch, 0.2 part of antioxidant 1010 and 0.3 part of antioxidant 168, 0.5 parts of high molecular weight polypropylene wax and 0.5 parts of ethylene bis stearamide are added to the mixer to make them fully mixed evenly. Put the mixture into the twin-screw extruder through the feeding port, the processing temperature is 190-230°C, the temperature control of the twin-screw extruder has six sections, the extrusion temperature of the first section and the second section is 190-200°C, other The extrusion temperature of several sections is 200-230°C; the residence time of the material in the twin-screw extruder is 5 minutes, and the speed of the main engine is 250-300r.min -1 ; Then extrude the melt through the die of the twin-screw extruder to form a molten pool. Preheat and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a long glass fiber reinforced polypropylene material and a preparation method thereof. The mass ratio of the material components is: 35 percent to 55 percent of polypropylene, 35 percent to 50 percent of long glass fibers, 0.3 percent to 0.8 percent of coupling agents, 5 percent to 10 percent of compatilizers, 2 percent 4 percent of flow modifiers, 0.3 percent to 0.6 percent of antioxidants and 1 percent to 2 percent of lubricants. The invention has the process that the polypropylene, the flow modifiers, the compatilizers, the antioxidants and the lubricants are mixed firstly, then the mixture is added into a double screw extruder, and the processing temperature is 180 DEG C to 230 DEG C; a molten bath is formed by extruding melts from the extruding die of the extruder; the continuous long glass fibers are preheated for drying, and the surfaces of the long glass fibers are processed; later, a soakage device is introduced to lead a plurality of strands of the long glass fibers into the molten bath so that the long glass fibers are completely soaked and then is bundled to be packaged, and finally, the long glass fibers are discharged from a bell-mouthed die head outlet to be cooled and cut into granules to obtain the long glass fiber reinforced polypropylene granule materials. The invention has simple and practical process and favorable product performance.

Description

technical field [0001] The invention relates to glass fiber reinforced plastics, in particular to a long glass fiber reinforced polypropylene material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Glass fiber reinforced plastic is a lightweight high-strength engineering structural material. Its tensile, flexural modulus, creep resistance, and fatigue resistance are much better than those of non-reinforced plastics. The main reason is that when an external force acts, the load is transmitted through the fiber, and the fiber has good mechanical properties. In Western Europe, about 50% of fiber-reinforced plastics are used in the automotive industry, and in the United States about 30%. Long glass fiber reinforced thermoplastics (LFRT) have excellent rigidity, toughness, warpage resistance and UV stability, and are less expensive than ABS and engineering plastics. Because the average length of the fibers ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L23/10C08K13/06C08J5/08B29B7/00B29B7/34B29B7/82B29B15/12B29B9/06C08L51/06C08K5/20
Inventor 赵东明郁文娟汪倩文
Owner SUZHOU HECHANG POLYMERIC MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap