Adhesive for shuttleless loom steel reed and preparation method thereof

A technology of mechanical reed and adhesive, applied in the direction of adhesive, adhesive type, conjugated diene adhesive, etc., can solve the problems of large influence of curing process temperature, low tensile and shear strength, insufficient toughness, etc., and improve the system Sedimentation and instability, improved molecular mobility, enhanced strength and toughness

Active Publication Date: 2017-11-07
陕西纺织器材研究所有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the adhesives for reeds of domestic shuttleless looms have insufficient toughness, low tensile and shear strength, curing process is greatly affected by temperature, and strong odor. In terms of performance, they cannot meet the requirements of high-speed shuttleless looms for reeds. Therefore, the development of Adhesives for reeds of shuttleless looms with high toughness are of great significance

Method used

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  • Adhesive for shuttleless loom steel reed and preparation method thereof
  • Adhesive for shuttleless loom steel reed and preparation method thereof
  • Adhesive for shuttleless loom steel reed and preparation method thereof

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preparation example Construction

[0040] A preparation method for an adhesive for a reed of a shuttleless loom, comprising the following steps:

[0041] 1) Add active diluent, filler, toughening agent and additive to epoxy resin and mix evenly, then add defoamer and mix evenly to obtain component A;

[0042] 2) Mix the filler, coupling agent, toughening agent and curing agent uniformly, then add additives and mix uniformly to obtain component B;

[0043] 3) Mix components A and B evenly at a mass ratio of 2:1 to obtain an adhesive for the reed of a shuttleless loom.

[0044] Specifically, in step 1), reactive diluents, fillers, toughening agents, and additives are added to the epoxy resin and stirred for 1.5-2 hours, and then defoamers are added and stirred for 0.5-1 hours to obtain component A at a speed of 800- 1200r / min.

[0045] In step 2), the filler, the coupling agent and the curing agent are mixed and stirred for 1-1.5 hours, and then the additives are added and stirred for 0.5-1 hours at a speed of ...

Embodiment 1

[0047] 1), in parts by weight, take 15 parts of allyl glycidyl ether, 40 parts of light calcium, 4 parts of nitrile rubber, nano-SiO 2 Add 2 parts of particles, 1 part of the mixture of polyamide and polyester, and 1 part of white carbon black to 40 parts of bisphenol A epoxy resin, stir for 2 hours at a speed of 800r / min, and then add 1 part of polyether defoamer , A component was obtained after stirring for 0.5h;

[0048] 2) Add 20 parts of microsilica powder, 15 parts of talc powder, 5 parts of light calcium, and 1 part of silane coupling agent into a liquid composed of 20 parts of modified diethylenetriamine and 35 parts of modified polyamide at a speed of 800r / min Stir for 1.5h, then add 3 parts of white carbon black, stir for 1h to obtain component B;

[0049] 3) Take the above components A and B respectively according to the weight ratio of 2:1, and mix them uniformly to obtain the adhesive for the reed of the shuttleless loom.

Embodiment 2

[0051] 1), in parts by weight, take 12 parts of n-butyl glycidyl ether, 30 parts of light calcium, 4 parts of nitrile rubber, nano-SiO 2 Add 4 parts of particles, 2 parts of a mixture of polyamide and polyester, and 1 part of white carbon black to 37 parts of bisphenol A epoxy resin, stir at a speed of 850r / min for 1.8h, and then add polyether defoamer 0.9 parts were stirred for 0.6h to obtain component A;

[0052] 2), add 30 parts of heavy calcium, 16 parts of talcum powder, 1 part of nitrile rubber, and 2 parts of silane coupling agent into the liquid composed of 15 parts of modified diethylenetriamine and 35 parts of modified polyamide at a speed of 850r / Stir at 1 min for 1.5 h, then add 2 parts of white carbon black, and stir for 0.5 h to obtain component B;

[0053] 3) Take the above components A and B respectively according to the weight ratio of 2:1, and mix them uniformly to obtain the adhesive for the reed of the shuttleless loom.

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Abstract

The invention discloses an adhesive for a shuttleless loom steel reed and a preparation method thereof. According to the method, firstly, active diluting agents, fillings, toughening agents and additives are added into epoxy resin and are uniformly mixed; then, defoaming agents are added and are uniformly mixed to obtain an ingredient A; the toughening agents are added into the ingredient A; the viscosity of the ingredient A is improved; then, an ingredient B is singly prepared ; next, the ingredient A and the ingredient B are mixed to obtain the adhesive for the steel reed; the intensity and the toughness of the adhesive are enhanced; the toughening agents are multi-functional-group linear structure macromolecules; the toughening agents can take pre-reaction with the system curing agent after being dispersed in the ingredient A; a reticular structure is formed; the system sedimentation and instability phenomena are effectively relieved; the reaction is performed with the system functional groups, so that the bonding intensity of the adhesive is improved; the linear long-chain molecules are filled between adhesive molecules; the molecule space is increased, so that the molecule activity is improved; therefore the toughness of the epoxy adhesive is improved.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an adhesive for a shuttleless loom reed and a preparation method thereof. Background technique [0002] The reed adhesive forms a bonding effect between the reed beam and the reed sheet, stably fixes the reed sheet in the reed beam, and ensures that the reed sheet will not loosen or even fall off. At present, textile machinery is developing towards high speed, automation, and intelligence. The efficiency of looms is also gradually increasing, with a speed of up to 900r / min. At the same time, in order to reduce the fatigue fracture of the reed and facilitate the passage of warp joints and slubs, the reed must be elastic. In order to meet these properties at the same time, the adhesive is required to have high bonding strength and toughness. [0003] Epoxy resin has the advantages of low shrinkage, high adhesive strength, stable size, chemical medium resistance, good process pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J163/04C09J109/02C09J11/04C09J11/06C09J11/08
CPCC08K2003/265C08K2201/011C08K2201/014C08L2205/02C08L2205/03C08L2205/035C09J11/04C09J11/06C09J11/08C09J163/00C08L9/02C08L77/00C08L67/00C08L63/00C08L63/04C08K13/02C08K3/26C08K3/36C08K3/34
Inventor 李冰郑亚萍孙思薇
Owner 陕西纺织器材研究所有限责任公司
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