Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multicavity hollow board continuous forming method

A molding method and hollow board technology, applied in the field of materials, can solve the problems affecting popularization and application, difficult large-scale production of FRP hollow boards, etc., and achieve the effects of good alkali resistance, easy large-scale production, and convenient operation

Inactive Publication Date: 2021-02-09
天长市蓝天复合材料有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the technical level of the current FRP molding process, it is difficult to achieve large-scale production of FRP hollow panels, which in turn affects its popularization and application.

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
  • Multicavity hollow board continuous forming method
  • Multicavity hollow board continuous forming method
  • Multicavity hollow board continuous forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The specific composition of the resin material is shown in Table 1.

[0025] (1) Put the resin material into the reaction kettle and stir for 40min at 200r / min;

[0026] (2) Evenly disperse the stirred resin material on the carrying process film, and then cover a layer of glass fiber felt on the carrying process film dispersed with the resin material to infiltrate the glass fiber felt;

[0027] (3) Using a pultrusion molding machine, at a mold temperature of 100°C and a pulling speed of 0.5m / min, the glass fibers impregnated with resin materials are molded;

[0028] (4) Cut the formed hollow board with an automatic shearing machine to obtain a 2m multi-cavity hollow board.

[0029] The carrying process film is a polyester film; the glass fiber felt is an alkali-free glass fiber felt; the resin material is dispersed on the carrying process film by casting method.

Embodiment 2

[0031] The specific composition of the resin material is shown in Table 1.

[0032] (1) Put the resin material into the reaction kettle and stir at 300r / min for 30min;

[0033] (2) Evenly disperse the stirred resin material on the carrying process film, and then cover a layer of glass fiber felt on the carrying process film dispersed with the resin material to infiltrate the glass fiber felt;

[0034] (3) Using a pultrusion molding machine, at a mold temperature of 150°C and a pulling speed of 3m / min, the glass fibers impregnated with resin materials are molded;

[0035] (4) Cut the formed hollow board with an automatic shearing machine to obtain a 2m multi-cavity hollow board.

[0036] The carrying process film is a polyester film; the glass fiber felt is an alkali-free glass fiber felt; the resin material is dispersed on the carrying process film by casting method.

Embodiment 3

[0038] The specific composition of the resin material is shown in Table 1.

[0039] (1) Put the resin material into the reaction kettle and stir at 250r / min for 35min;

[0040] (2) Evenly disperse the stirred resin material on the carrying process film, and then cover a layer of glass fiber felt on the carrying process film dispersed with the resin material to infiltrate the glass fiber felt;

[0041] (3) Using a pultrusion molding machine, at a mold temperature of 110°C and a pulling speed of 2m / min, the glass fibers impregnated with resin materials are molded;

[0042] (4) Cut the formed hollow board with an automatic shearing machine to obtain a 2m multi-cavity hollow board.

[0043] The carrying process film is a polyester film; the glass fiber felt is an alkali-free glass fiber felt; the resin material is dispersed on the carrying process film by casting method.

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 relates to the technical field of materials, in particular to a multicavity hollow board continuous forming method. A resin material is used in the method. The resin material consists ofunsaturated polyester resin, cobalt naphthenate, dibenzoyl peroxide and styrene. A multicavity hollow board prepared by the method is relatively high in performance indexes such as bending strength,tensile strength, impact resistance and hardness, is good in acid and alkali resistance and shows excellent weather resistance. The preparation method provided by the invention can achieve continuousforming of a product, and is convenient to operate, easy for scaled production and stable in quality.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a continuous molding method for a multi-cavity hollow plate. Background technique [0002] Hollow plate is a kind of plate that uses the principle of material mechanics to make its interior hollow according to certain rules, and uses less material to achieve higher mechanical properties. At present, the common hollow boards are mostly produced by high-temperature extrusion molding processes of thermoplastic resin materials such as polycarbonate (PC), polystyrene (PS), polypropylene (PP) and polyvinyl chloride board (PVC). Due to the deformation and low mechanical strength of thermoplastics after heating, their application in building envelope is limited. As a glass fiber reinforced thermosetting resin composite material, FRP has the advantages of high strength, low density, aging resistance, low thermal conductivity, good light transmission and high flame retardancy. From the ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/52B29L7/00
CPCB29C70/521B29L2007/002
Inventor 张广月陶青朱建忠
Owner 天长市蓝天复合材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com