A safety shoe protective toecap made of a long fiber reinforced thermoplastic resin composite material and a preparing method thereof

A resin composite material and enhanced thermoplastic technology, which is applied to reinforcements, shoe uppers, footwear, etc., can solve the problems of reducing the impact performance of parts, safety shoe weight, poor insulation, etc., achieve good impact performance, solve poor insulation, reduce cost effect

Inactive Publication Date: 2015-06-10
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional material of the protective toe cap of safety shoes is steel, which is generally cast and formed to resist smashing and protect the toe. However, this kind of safety shoes has the following defects: (1) Because the toe cap is made of steel, the safety shoes can withstand electric shock The ability to wear is poor, that is, the insulation is poor, which limits the scope of use of this kind of shoes; (2) The specific gravity of steel is relatively large, which makes the safety shoes relatively heavy, and you will feel tired when wearing them; (3) The elastic deformation of the steel plate is small, poor comfort
[0004] In order to solve the problem of steel protective toecaps, resin or fiber-reinforced resin composite protective toecaps have been proposed so far, in which long-fiber or sh

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
  • A safety shoe protective toecap made of a long fiber reinforced thermoplastic resin composite material and a preparing method thereof
  • A safety shoe protective toecap made of a long fiber reinforced thermoplastic resin composite material and a preparing method thereof
  • A safety shoe protective toecap made of a long fiber reinforced thermoplastic resin composite material and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Mix 100 parts of PP, 0.1 part of antioxidant 1010, 0.7 part of coupling agent KH550, and 0.2 part of lubricant silicone powder in a high-speed mixer for 3 minutes, and mix well.

[0039] (2) Mix material 1 in (1) according to figure 1 or image 3 As shown in the flow chart, through the first-stage twin-screw extruder 2, melting, mixing, and extrusion, the molten resin directly enters the opening 4 of the second-stage twin-screw extruder through a die head, and 300 parts of glass fiber roving 3 are also made This opening 4 is introduced, and through procedures such as cutting and dispersing, the glass fiber with a cutting length of 50mm is gently mixed into the pre-melted polymer through twin-screws, and then extruded.

[0040] Among them, the melt extrusion temperature of the first-stage twin-screw extruder is: 160°C in the first zone, 175°C in the second zone, 195°C in the third zone, 210°C in the fourth zone, 220°C in the fifth zone, and 220°C at the head; the se...

Embodiment 2

[0044] (1) Mix 100 parts of PA6, 0.2 parts of antioxidant 168, 0.5 parts of coupling agent KH560, and 0.4 parts of lubricant TAF in a high-speed mixer for 4 minutes, and mix well;

[0045] (2) Mix material 1 in (1) according to figure 1 or image 3As shown in the flowchart, the first-stage twin-screw extruder 2 is melted, mixed, and extruded, and the molten resin directly enters the opening 4 of the second-stage twin-screw extruder through a die head, and 233 parts of glass fiber roving 3 are also made of This opening 4 is introduced, and through procedures such as cutting and dispersing, the glass fiber with a cut length of 45mm is gently mixed into the pre-melted polymer through twin-screws, and then extruded.

[0046] Among them, the melt extrusion temperature of the first-stage twin-screw extruder is: 195°C in the first zone, 215°C in the second zone, 230°C in the third zone, 240°C in the fourth zone, 245°C in the fifth zone, and 245°C at the head; the second-stage twin-s...

Embodiment 3

[0050] (1) Mix 100 parts of PA66 and 0.3 parts of antioxidant 1076, 1.0 parts of coupling agent KH570, and 0.6 parts of lubricant RH-313 in a high-speed mixer for 5 minutes, and mix well;

[0051] (2) Mix material 1 in (1) according to figure 1 or image 3 As shown in the flowchart, through the first-stage twin-screw extruder 2, melting, mixing, and extrusion, the molten resin directly enters the opening 4 of the second-stage twin-screw extruder through a die head, and 212 parts of glass fiber roving 3 are also made of This opening 4 is introduced, and through procedures such as cutting and dispersing, the glass fiber with a cut length of 40 mm is gently mixed into the pre-melted polymer through twin-screws, and then extruded.

[0052] The melt extrusion temperature of the first-stage twin-screw extruder is: 225°C in the first zone, 245°C in the second zone, 265°C in the third zone, 275°C in the fourth zone, 280°C in the fifth zone, and 280°C at the head; The machine melt ex...

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

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of polymer composite materials, and relates to a safety shoe protective toecap made of a long fiber reinforced thermoplastic resin composite material and a preparing method thereof. The protective toecap is prepared from following components by weight: 100 parts of thermostatic resin, 150-300 parts of continuous fiber, 0.1-0.5 part of an antioxidant, 0.2-1.0 part of a coupling agent and 0.2-1.0 part of a lubricant. The protective toecap is prepared by adopting an LFT-D mould pressing one-step production process, can meet requirements of the European standard EN345. Compared with LFT-G and short fiber reinforced thermoplastic resin composite materials, the method reduces the cost, reduces costs of production, transportation and storage of semi-finished products, ensures good impact performance of the protective toecap, and overcomes the disadvantages of steel toecaps, namely poor insulation properties, high specific gravity, low elastic deformation, poor comfortable sensation, and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a long fiber reinforced thermoplastic resin composite material safety shoe protective toe cap and a preparation method thereof. Background technique [0002] Safety shoes are a general term for safety shoes and protective shoes. They generally refer to footwear that protect feet and legs from foreseeable injuries and are worn in different workplaces. Among them, the European standard EN345 "Special Safety, Protection and Work "Shoes" requires that the protective toe cap of safety shoes can provide impact protection at least 200J energy test and pressure resistance protection at least 15kN pressure test. [0003] The traditional material of the protective toe cap of safety shoes is steel, which is generally cast and formed to resist smashing and protect the toe. However, this kind of safety shoes has the following defects: (1) Because the toe cap is made of steel...

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): C08L23/12C08L77/06C08L77/02C08L61/16C08L69/00C08L81/02C08L67/02A43B23/17C08K13/04C08K7/14C08K7/06B29C69/02B29C47/92B29C43/58B29C48/92
CPCC08L23/12C08K7/06C08K7/14C08L83/04C08L77/02C08L77/06C08L69/00C08L67/02C08L61/16C08L81/02
Inventor 杨桂生刘明昌
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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