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Three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material and preparing method thereof

A warp-knitted spacer fabric and foam material technology is applied in the field of foam reinforcement materials to achieve the effects of reducing molding time, strong designability and reducing cost of parts

Inactive Publication Date: 2018-05-11
福建福联精编有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these reinforcement methods can improve the performance of foam materials to a certain extent, they are generally reinforced in the form of short fibers, fillers or nanomaterials with an order of magnitude smaller, which cannot fundamentally change the performance weaknesses of foam materials.

Method used

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  • Three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material and preparing method thereof
  • Three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material and preparing method thereof
  • Three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Selection of raw materials: The three-dimensional spacer fabric is woven from PET fibers with a thickness of 20mm, and the foaming material is polyurethane foam. Polyurethane foaming raw materials are divided into A component and B component; A component includes polyether polyol, foaming agent (n-pentane), foam stabilizer (organic silicon foam stabilizer), catalyst (triethylenediamine) , water and chain extender (ethylenediamine); B component is polyisocyanate. The ratio of component A to component B is calculated by mass ratio.

[0035] Component A: polyether polyol 100, n-pentane 3, silicone oil foam stabilizer 2, triethylenediamine 1.2, water 0.3, chain extender (ethylenediamine);

[0036] B component: Polyisocyanate 150.

[0037] The schematic diagram of the special-shaped structure (hyperboloid) of the three-dimensional warp-knitted spacer fabric reinforced special-shaped foam material described in Embodiment 1 of the present invention is as follows figure ...

Embodiment 2

[0044](l) Selection of raw materials: the three-dimensional spacer fabric is woven from glass fiber, with a thickness of 30mm. Polyurethane foam raw materials are divided into A component and B component. A component includes polyether polyol, foaming agent (n-pentane), foam stabilizer (silicone oil foam stabilizer), catalyst (triethylenediamine), Water, chain extender (ethylenediamine); B component is polyisocyanate. The distribution ratio of A component and B group is calculated by mass ratio.

[0045] Component A: polyether polyol 100, pentane 6, silicone oil foam stabilizer 4, triethylenediamine 2.4, water 0.5, chain extender (ethylenediamine) 1.5.

[0046] B component: Polyisocyanate 150.

[0047] (2) Cut the three-dimensional spacer fabric to a good size, change the shape in the mold, and form such as image 3 The I-shaped cross-section structure is shown, and the shape is fixed. The upper and lower arcs of the formed I-shaped section are part of a circle with a radi...

Embodiment 3

[0053] (1) Selection of raw materials: The three-dimensional spacer fabric is woven from mixed fibers of glass fiber and PET fiber, with a thickness of 15mm, and the foaming material is phenolic foam. The main material is phenolic resin, the foaming agent is dichloroethane: n-pentane = 1:10 compound foaming agent, the surfactant is Tween-80, and the curing agent is benzenesulfonic acid. The shape of design foam material is hemispherical, and each component of raw material comprises as follows by weight:

[0054] 100 parts of phenolic resin, 8 parts of compound foaming agent, 6 parts of Tween-80, 10 parts of benzenesulfonic acid.

[0055] (2) Cutting the three-dimensional spacer fabric with the three-dimensional spacer fabric, changing the shape in the mold, forming such as Figure 4 Hemisphere as shown, and fix the shape. Hemispherical shell thickness C=150mm, outer diameter R=200mm.

[0056] (3) Mix the phenolic resin, compound foaming agent and Tween-80 according to the r...

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Abstract

The invention discloses a three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material and a preparing method thereof, and relates to foam reinforcing materials. The three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material is composed of a matrix and a reinforcing body, wherein the matrix is an organic foam material, the reinforcing body is three-dimensional spacer fabric, and the three-dimensional spacer fabric and the organic foam material are compounded. The preparing method comprises the steps of 1, selecting the three-dimensional spacerfabric, a polymer, a foaming agent and an additive; 2, placing the three-dimensional spacer fabric into a mold after cutting the three-dimensional spacer fabric, deforming the three-dimensional spacerfabric and fixing the shape in the mold; 3, preparing the organic foam material, wherein the polymer, the foaming agent and the additive which are selected in the step 1 are stirred and uniformly mixed; 4, casting raw materials which are uniformly mixed in the step 3 into the three-dimensional spacer fabric, and conducting foam enriching, curing and demolding to obtain the three-dimensional warp-knitted spacer fabric reinforcing special-shape foam material.

Description

technical field [0001] The invention relates to a foam reinforcing material, in particular to a three-dimensional warp-knitted spacer fabric reinforced special-shaped foam material and a preparation method thereof. Background technique [0002] Foam materials have a wide range of uses due to their light weight, heat insulation, sound insulation, high specific strength, and insulation properties. The research on the high performance of foam materials at home and abroad mainly includes: chopped fiber reinforcement, filler reinforcement, whisker reinforcement, nano-material reinforcement, etc. for existing foam plastics. Although these reinforcement methods can improve the performance of foam materials to a certain extent, they are generally reinforced in the form of short fibers, fillers, or nanomaterials with smaller orders of magnitude, which cannot fundamentally change the performance weaknesses of foam materials. [0003] The three-dimensional spacer fabric is a kind of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L61/06C08L67/02C08J9/14C08G18/48C08G18/32C08G18/66B29C70/42B29C70/54
CPCB29C70/42B29C70/54C08G18/3228C08G18/48C08G18/6685C08J9/0061C08J9/0085C08J9/141C08J9/145C08J9/149C08J2203/14C08J2203/142C08J2203/18C08J2361/06C08J2375/08C08J2467/02C08K7/14
Inventor 陈亚阳
Owner 福建福联精编有限公司
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