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Preparation method of composite pultrusion profile demolding cloth

A technology of pultrusion profiles and composite materials, applied in fiber types, textiles, fiber processing, etc., can solve the problems of release cloth wrinkles, shrinkage, and temperature resistance of residual filaments, so as to reduce traction, improve temperature resistance, and improve The effect of stiffness

Pending Publication Date: 2022-05-06
ZHEJIANG YOUWEI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved in the present invention is: research and development of a composite material pultrusion profile release cloth and its preparation method, the composite material pultrusion profile release cloth adopts the mode of coating, the graphene functional solution and the release cloth The matrix is ​​compounded to form a high-performance release cloth with a certain stiffness, high temperature resistance and lubricity, and then solve the defects of the existing release cloth such as wrinkles, shrinkage, residual filaments, and poor temperature resistance

Method used

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  • Preparation method of composite pultrusion profile demolding cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] S1 fabric preparation: Nylon 6 is used, and the weight is 80g / m after warping, threading, weaving, cleaning, drying and setting 2 fabric.

[0034] Cutting of S2 fabric: cutting and slitting the fabric by laser to obtain base fabric with a width of 118mm.

[0035] Preparation of S3 functional solution: (1) Take 100 parts by weight of deionized water, add 0.1 part of graphene and 0.01 part of potassium 2,4-hexadienoate, and heat to 85°C. (2) Put in 0.05 part of polyvinyl alcohol, stir for 1 hour, stop heating, wait until the polyvinyl alcohol is completely dissolved, and then stand still for 30 minutes. (3) Use a vacuum pump to degas the solution and wait for use.

[0036] S4 Coating: Use a coating machine to apply the functional solution in step 3 on the surface of the release cloth by means of squeeze rollers, with a coating thickness of 0.01mm.

[0037] S5 Drying: After coating, pass through a drying tunnel at 100°C, dry the surface, and wind up to obtain a composit...

Embodiment 2

[0039] S1 fabric preparation: Nylon 6 is used, and the weight is 80g / m after warping, threading, weaving, cleaning, drying and setting 2 fabric.

[0040] Cutting of S2 fabric: cutting and slitting the fabric by laser to obtain base fabric with a width of 118mm.

[0041] Preparation of S3 functional solution: (1) Take 100 parts by weight of deionized water, add 0.8 parts of graphene and 0.03 parts of potassium 2,4-hexadienoate, and heat to 85°C. (2) Put in 1.5 parts of polyvinyl alcohol, stir for 1 hour, stop heating, wait until the polyvinyl alcohol is completely dissolved, and then stand still for 30 minutes. (3) Use a vacuum pump to degas the solution and wait for use.

[0042] S4 coating: use a coating machine to apply the functional solution in step 3 on the surface of the release cloth by means of squeeze rollers, and the coating thickness is 0.02 mm.

[0043] S5 Drying: After coating, pass through a drying tunnel at 100°C, dry the surface, and wind up to obtain a comp...

Embodiment 3

[0045] S1 fabric preparation: Nylon 6 is used, and the weight is 80g / m after warping, threading, weaving, cleaning, drying and setting 2 fabric.

[0046] Cutting of S2 fabric: cutting and slitting the fabric by laser to obtain base fabric with a width of 118mm.

[0047] Preparation of S3 functional solution: (1) Take 100 parts by weight of deionized water, add 1.5 parts of graphene and 0.05 parts of potassium 2,4-hexadienoate, and heat to 85°C. (2) Put in 2.5 parts of polyvinyl alcohol, stir for 1 hour, stop heating, wait until the polyvinyl alcohol is completely dissolved, and then stand still for 30 minutes. (3) Use a vacuum pump to degas the solution and wait for use.

[0048] S4 coating: use a coating machine to apply the functional solution in step 3 on the surface of the release cloth by means of squeeze rollers, and the coating thickness is 0.03mm.

[0049] S5 Drying: After coating, pass through a drying tunnel at 100°C, dry the surface, and wind up to obtain a compo...

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Abstract

The invention discloses a preparation method of composite pultruded profile demolding cloth, which comprises the following steps: S1, preparing a fabric: weaving one or two of nylon 66, nylon 6, nylon 56 and polyester fibers in a mixed manner, taking one as a warp direction and taking the other as a weft direction, and then warping, threading, weaving, cleaning, drying and shaping to obtain the required fabric; s2, slitting the fabric: cutting and slitting the fabric by adopting a laser, ultrasonic or mechanical cutter mode and the like to obtain a base fabric with the required width; s3, preparing a functional solution. And S4, coating. And S5, drying. The high-performance demolding cloth with stiffness, high temperature resistance and lubricity is prepared through the preparation method.

Description

technical field [0001] The invention relates to the technical field of release cloth, in particular to a method for preparing a release cloth for pultrusion profiles of composite materials. Background technique [0002] As a composite material forming process, pultrusion has attracted much attention from the composite material industry due to its high automation, high product yield and high raw material utilization rate. In recent years, due to the rapid development of the wind power industry and the large-scale application of blade girder plates, the market for pultrusion profiles is booming. When secondary molding, bonding or assembly is required, the surface of the profile needs to be roughened so that it can be firmly combined with other materials. [0003] Specific pultrusion profile process: After the fiber is unwound from the yarn disc, the fiber is bundled by the yarn board and dipped in glue, and the upper and lower surfaces are covered with release cloth. After e...

Claims

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Application Information

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IPC IPC(8): D06N3/04D06N3/00D03D15/283D06M15/333D06M13/203D06M11/74B29C33/68B29C70/52B29C70/54D06M101/32D06M101/34
CPCD06N3/04D06N3/0063D06N3/0006D06N3/0036D06N3/0034D03D15/283D06M11/74D06M13/203D06M15/333B29C33/68B29C70/525D06N2209/067D06N2209/1642D10B2331/02D10B2331/04D06M2101/34D06M2101/32D06M2200/20
Inventor 潘宝庆范爱荣邹本书候圣伟徐理伟
Owner ZHEJIANG YOUWEI NEW MATERIAL