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Linear composite material and preparation method thereof

A composite material and thread-like technology, which is applied in the field of composite materials and its preparation, can solve problems such as uneven bonding of fiber materials, unsuitability for badminton racket molding, and high structural precision requirements, so as to achieve good processing performance, improve adhesion and packaging Good coverage and toughness

Active Publication Date: 2019-07-30
XIAMEN HOWER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The strength of the product is not high, all the strength depends on molding, the bonding force between layers is not high; the batch between layers is unstable, and the bonding between fiber materials is uneven;
[0007] (2) There is no adhesive layer, which is a direct combination of linear base material and expanded resin. The bonding force between the product layers is low, and there are gaps, which are difficult to exclude in the later heating and forming process, so that the product is more likely to have a bad appearance;
[0008] (3) Since the middle tube of badminton rackets is thinner and requires higher structural precision, the original design size is difficult to control, especially not suitable for forming the middle tube of badminton rackets

Method used

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  • Linear composite material and preparation method thereof
  • Linear composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Preparation of adhesive:

[0051] In parts by weight, 40 parts of acrylate monomer (methyl acrylate), 10 parts of vinyl-terminated prepolymer (specifically methyl vinyl dimethyl (siloxane and polysiloxane)), 0.5 part of stabilizer (glyceryl laurate), 0.5 part of initiator (benzoyl peroxide), 0.1 part of curing accelerator (dimethylaniline), 1 part of anti-settling agent (polyvinyl acetate) and mix well, Component A is obtained.

[0052] In parts by weight, 25 parts of polypropylene glycol (number average molecular weight is 400), 5 parts of vinyl acetate, polyvinyl acetate emulsion (solid content is 44wt%, the number average molecular weight of polyvinyl acetate contained therein is 17000, wherein The emulsifier contained is 10 parts of polyoxyethylene ether phosphate surfactant), 1 part of triethyl phosphate, 2 parts of polyisobutyl methacrylate (number average molecular weight is 130000), 5 parts of diphenylmethyl diisocyanate 2 parts, 2 parts of azodicarbonamid...

Embodiment 2

[0060] (1) Preparation of adhesive:

[0061] In parts by weight, 65 parts of acrylate monomer (ethyl acrylate), 30 parts of vinyl-terminated prepolymer (specifically, methyl vinyl dimethyl (siloxane and polysiloxane)), 2 parts of stabilizer (glyceryl laurate), 1 part of initiator (benzoyl peroxide), 3 parts of curing accelerator (dimethylaniline), 5 parts of anti-settling agent (polyvinyl acetate) and mix well, Component A is obtained.

[0062] In parts by weight, 40 parts of polytetrahydrofuran diol (number average molecular weight is 2000), 20 parts of vinyl acetate, polyvinyl acetate emulsion (solid content is 46wt%, the number average molecular weight of the polyvinyl acetate contained therein is 45000 , the emulsifier contained in it is phosphate ester salt surfactant) 20 parts, triethyl phosphate 5 parts, polyisobutyl methacrylate (number average molecular weight is 130000) 4 parts, diphenylmethyl diisocyanate 12 parts , 15 parts of azodicarbonamide, and 20 parts of di...

Embodiment 3

[0070] (1) Preparation of adhesive:

[0071] In parts by weight, 50 parts of acrylate monomer (methyl acrylate), 20 parts of vinyl-terminated prepolymer (specifically methyl vinyl dimethyl (siloxane and polysiloxane)), 1 part of stabilizer (glyceryl laurate), 3 parts of initiator (benzoyl peroxide), 2 parts of curing accelerator (dimethylaniline), 3 parts of anti-settling agent (polyvinyl acetate) and mix well, Component A is obtained.

[0072] In parts by weight, 30 parts of polypropylene glycol (number average molecular weight is 1000), 15 parts of vinyl acetate, polyvinyl acetate emulsion (solid content is 45wt%, the number average molecular weight of polyvinyl acetate contained therein is 275000, wherein The emulsifier contained is 15 parts of methyl sulfate surfactant), 3 parts of triethyl phosphate, 3 parts of polyisobutyl methacrylate (number average molecular weight is 130000), 7 parts of diphenylmethyl diisocyanate, 8 parts of azodicarbonamide and 12 parts of dichlo...

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Abstract

The invention belongs to the field of composite materials, and discloses a linear composite material and a preparation method thereof. The composite material comprises a linear base material, a cementing layer, a thermal self-expanding resin layer and an optional protective layer in sequence from inside to outside, wherein the cementing layer is formed by a cementing agent, and the thermal self-expanding resin layer is formed by an expandable resin composition capable of being expanded due to heat. The linear composite material and the preparation method thereof have the advantages that the binding force between the linear base material and the thermal self-expanding resin layer can be improved, the product strength and stability are improved, the interlayer gap existence rate is reduced,the post-processing performance of the linear base material is good, and the appearance of the formed composite material product is smooth and light.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a composite material and a preparation method thereof. Background technique [0002] During the molding process of badminton rackets, the requirements for the middle tube are relatively high, and the performance of the badminton racket depends to a large extent on the middle tube. The diameter of the middle tube of a badminton racket is generally about 7mm. The thicker the middle tube, the stronger the torque, but the poor flexibility; the thinner the middle tube, the better the flexibility, but the worse the torque. [0003] In order to maximize the player's batting skills, it is the current research direction to make the middle tube of badminton racket through the design of thinner tube diameter and composite material with high elastic modulus. [0004] One of the traditional methods is to use nylon air duct blowing and hot pressing molding. When preparing thin t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08J9/10C08J9/32C08J5/06C08L63/00C08L33/04C08L81/04C08L1/02C08L61/06C08L81/06C08L23/12C08K7/06C08K7/14
CPCC08J9/365C08J5/06C08J9/102C08J9/0085C08J9/32C08J2203/04C08J2363/00C08J2481/04C08J2401/02C08J2333/04C08J2361/06C08J2481/06C08J2203/22C08J2423/12C08J2483/04C08J2463/00
Inventor 蔡锦云李婉容谢容泉李卫平
Owner XIAMEN HOWER MATERIAL