CN104609742A - Method for preparing tire cord - Google Patents
Method for preparing tire cord Download PDFInfo
- Publication number
- CN104609742A CN104609742A CN201510043830.7A CN201510043830A CN104609742A CN 104609742 A CN104609742 A CN 104609742A CN 201510043830 A CN201510043830 A CN 201510043830A CN 104609742 A CN104609742 A CN 104609742A
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- China
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- parts
- thread
- latex
- glue
- cord
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/28—Macromolecular compounds or prepolymers obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to a method for preparing a tire cord. The method comprises the following steps: firstly, selecting glass fiber as threads of the tire cord and secondly, carrying out glue-dipping treatment on glass fiber in a glue-coating liquid, drying and twisting to obtain a finished product, wherein the glue-coating liquid comprises the following components: 1.2-1.3 parts of resorcinol, 0.9-1.0 part of formaldehyde, 0.04-0.06 part of sodium hydroxide, 14-16 parts of butadiene styrene vinyl-pyridine rubber latex, 12-13 parts of neoprene latex, 14-16 parts of styrene-butadiene latex and 50-60 parts of deionized water; or the glue-coating liquid comprises 1.2-1.3 parts of resorcinol, 0.9-1.0 part of formaldehyde, 0.04-0.06 part of sodium hydroxide, 29-31 parts of butadiene styrene vinyl-pyridine rubber latex, 12-13 parts of neoprene latex, 4-6 parts of styrene-butadiene latex and 45-55 parts of deionized water. The tire cord is simple in preparation process, convenient to process, and low in production cost and can be molded once and the flow is simplified; and meanwhile, the glue-coating liquid is simple in formula, the glue is stable in performance; and the prepared tire cord is good in strength and the glue layers have high strength and adhesion property and the rubber is easily physically and chemically bonded.
Description
Technical field
The invention belongs to macromolecule chemical material technical field, particularly relate to a kind of preparation method of cord thread.
Background technology
Cord thread is called for short cord, and being the warp materials weaving cord, as the strongthener of the rubber items such as tire, travelling belt, transmission belt, is main for tire.As the framework material of tire, cord thread to the characteristic of tire, as high speed performance, weather resistance with handlingly play very important effect.The base material of current cord thread is mainly artificial silk, polyamide fibre and polyester three major types, but the poor adhesion of the cord thread all the time used and rubber, and intensity is low, can not meet the normal use of cord thread.
Through looking into, the existing patent No. is the Chinese invention patent " a kind of polyamide fiber cord dipping solution " of CN201310380721.5, comprise A and B two portions component, described component A includes the raw material of following parts by weight: formaldehyde 1.26-2.34, Resorcinol 1.42-2.16, sodium hydroxide 0.04-0.06, soft water 21.4-23.6; Described B component includes the raw material of following parts by weight: vinyl-pyridine latex 16.98-18.08, natural rubber latex 34.2-35.95, sodium hydroxide 0.027-0.044, soft water 18.7-21.4.This dipping solution stable performance, has higher intensity and good performance, but it is two components, and need two component mixing during processing cord thread, therefore work flow is cumbersome.
Summary of the invention
Technical problem to be solved by this invention is to provide low, the easy to process and preparation method of the cord thread of excellent property of a kind of cost.
The present invention solves the problems of the technologies described above adopted technical scheme: the preparation method of this cord thread, is characterized in that: comprise the following steps:
One, raw material, selects glass fibre as the silk thread of cord thread;
Two, impregnation, glass fibre is carried out dipping process in gluing solution, then dries, silk thread after oven dry is twisted thread, namely cord thread finished product is obtained, consisting of of the formula of described gluing solution: Resorcinol 1.2 ~ 1.3 parts, 0.9 ~ 1.0 part, formaldehyde, 0.04 ~ 0.06 part, sodium hydroxide; butadiene styrene vinyl pyridine latex 14 ~ 16 parts; polychloroprene latex 12 ~ 13 parts, styrene-butadiene latex 14 ~ 16 parts, deionized water 50 ~ 60 parts; Or the formula of described gluing solution is: Resorcinol 1.2 ~ 1.3 parts, 0.9 ~ 1.0 part, formaldehyde, 0.04 ~ 0.06 part, sodium hydroxide, butadiene styrene vinyl pyridine latex 29 ~ 31 parts, polychloroprene latex 12 ~ 13 parts, styrene-butadiene latex 4 ~ 6 parts, deionized water 45 ~ 55 parts.
As improvement, also can add carbon black liquid or the black slurry staining agent as toning in described formula, the add-on of described carbon black liquid or black slurry is 3% ~ 5% of glue total mass.
As improvement, described silk thread can be placed on roll shaft movably, and the shape that flows successively is through being placed with coating groove, baking oven, the twisting frame of gluing solution, from coating groove to twisting thread as sequential like one gas makes cord thread.
As improvement, the impregnation time of described silk thread in coating groove is 3 ~ 6 seconds.
Improve, in described baking oven, bake out temperature is 140 ~ 250 DEG C again, and by the silk thread after dipped glue with the drying tunnel of the speed of 14 ~ 16 ms/min through baking oven, in baking oven, drying time is 1 ~ 3 minute.
Improve again, described in number of twisting thread be 5 ~ 10, the glass fibre being coated with glue-line by the silk threads of 5 ~ 10 is twisted a cord thread.
Compared with prior art, the invention has the advantages that: preparation technology is simple, easy to process, simplify work flow, by impregnation, drying glue and a gas synthesis of twisting thread, reduce production cost significantly, gluing solution formula is reasonable simultaneously, and not only prepare conveniently and stable performance, obtained cord strength is good, glue-line had not only had intensity but also tool degree of adhesion, and the cord thread quality making to make, working (machining) efficiency all go all out with height.So be a kind of very practical cord thread working method.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
The gluing solution formula of the cord thread of the present embodiment is: Resorcinol 1.28 parts, 0.95 part, formaldehyde, 0.05 part, sodium hydroxide, butadiene styrene vinyl pyridine latex 15 parts, polychloroprene latex 12.5 parts, styrene-butadiene latex 15 parts, deionized water 55 parts; Above-mentioned number is mass fraction; Formaldehyde is 37% technical grade.
During preparation, by the raw material hybrid reaction of above-mentioned formula, obtain gluing solution, after preparation terminates, the carbon black liquid adding total mass 4% dyes; Then select glass fibre as the silk thread of cord thread, silk thread can be placed on roll shaft movably, and the shape that flows successively is through being placed with coating groove, baking oven, the twisting frame of gluing solution, from coating groove to twisting thread as sequential like one gas makes cord thread.
Wherein the impregnation time of silk thread in coating groove is 3 ~ 6 seconds, in described baking oven, bake out temperature is 140 ~ 250 DEG C, by the silk thread after dipped glue with the drying tunnel of the speed of 14 ~ 16 ms/min through baking oven, in baking oven, drying time is 1 ~ 3 minute, described number of twisting thread is 5 ~ 10, the silk thread being coated with glue-line by 5 ~ 10 is twisted a cord thread, and namely obtain cord thread finished product, obtained cord thread has very high intensity.
Embodiment 2
The gluing solution formula of the cord thread of the present embodiment is: Resorcinol 1.28 parts, 0.95 part, formaldehyde, 0.05 part, sodium hydroxide, butadiene styrene vinyl pyridine latex 30 parts, polychloroprene latex 12.5 parts, styrene-butadiene latex 5 parts, deionized water 50 parts; Above-mentioned number is mass fraction; Formaldehyde is 37% technical grade.
During preparation, by the raw material hybrid reaction of above-mentioned formula, obtain gluing solution, after preparation terminates, the carbon black liquid adding total mass 5% dyes; Then select glass fibre as the silk thread of cord thread, silk thread can be placed on roll shaft movably, and the shape that flows successively is through being placed with coating groove, baking oven, the twisting frame of gluing solution, from coating groove to twisting thread as sequential like one gas makes cord thread.
Wherein the impregnation time of silk thread in coating groove is 3 ~ 6 seconds, in described baking oven, bake out temperature is 140 ~ 250 DEG C, by the silk thread after dipped glue with the drying tunnel of the speed of 14 ~ 16 ms/min through baking oven, in baking oven, drying time is 1 ~ 3 minute, described number of twisting thread is 5 ~ 10, the silk thread being coated with glue-line by 5 ~ 10 is twisted a cord thread, and namely obtain cord thread finished product, obtained cord thread has very high intensity.
Below key point of the present invention is described further:
Butadiene styrene vinyl pyridine latex is a kind of synthetic latex having divinyl, vinylbenzene and 2-methyl-5-vinylpyrine copolymerization, its performance is obviously better than natural rubber latex and other synthetic latexes, be the excellent adhesion agent of synthon and rubber item, be widely used in the impregnation of tire cord, high-strength driving band, high-pressure rubber pipe framework material.
Polychloroprene latex is the important binding agent of one of bonding industry, because having a series of irreplaceable performance such as excellent cohesive strength, adhesion strength, water-fast, anti-aging, oil resistant, solvent resistant and acid and alkali-resistance, be widely used in the fields such as leather, furniture, building, decoration
Styrene-butadiene latex is with divinyl and the vinylbenzene stable emulsion through low temperature polymerization, its low price, there is good bonding force and stability, mainly be used in paper conversion, can be used as the sizing agent of plastics, rubber, fabric, tire cord, asbestos sealing washer and building materials, also can be used to make pressure sensitive adhesive.
Bake out temperature and time effects butadiene styrene vinyl pyridine latex, interaction between polychloroprene latex and styrene-butadiene latex, confirm under temperature is the condition of 140 ~ 250 DEG C through many experiments, time is 1 ~ 3 minute is the best, and the bonding strength between rubber cord thread obtained with this understanding and rubber interface reaches maximum value.
Claims (6)
1. a preparation method for cord thread, is characterized in that: comprise the following steps:
One, raw material, selects glass fibre as the silk thread of cord thread;
Two, impregnation, glass fibre is carried out dipping process in gluing solution, then dries, silk thread after oven dry is twisted thread, namely cord thread finished product is obtained, consisting of of the formula of described gluing solution: Resorcinol 1.2 ~ 1.3 parts, 0.9 ~ 1.0 part, formaldehyde, 0.04 ~ 0.06 part, sodium hydroxide; butadiene styrene vinyl pyridine latex 14 ~ 16 parts; polychloroprene latex 12 ~ 13 parts, styrene-butadiene latex 14 ~ 16 parts, deionized water 50 ~ 60 parts; Or the formula of described gluing solution is: Resorcinol 1.2 ~ 1.3 parts, 0.9 ~ 1.0 part, formaldehyde, 0.04 ~ 0.06 part, sodium hydroxide, butadiene styrene vinyl pyridine latex 29 ~ 31 parts, polychloroprene latex 12 ~ 13 parts, styrene-butadiene latex 4 ~ 6 parts, deionized water 45 ~ 55 parts.
2. preparation method according to claim 1, is characterized in that: also can add carbon black liquid or the black slurry staining agent as toning in described formula, the add-on of described carbon black liquid or black slurry is 3% ~ 5% of glue total mass.
3. preparation method according to claim 2, it is characterized in that: described silk thread can be placed on roll shaft movably, and the shape that flows successively is through being placed with coating groove, baking oven, the twisting frame of gluing solution, from coating groove to twisting thread as sequential like one gas makes cord thread.
4. preparation method according to claim 3, is characterized in that: the impregnation time of described silk thread in coating groove is 3 ~ 6 seconds.
5. preparation method according to claim 3, is characterized in that: in described baking oven, bake out temperature is 140 ~ 250 DEG C, and by the silk thread after dipped glue with the drying tunnel of the speed of 14 ~ 16 ms/min through baking oven, in baking oven, drying time is 1 ~ 3 minute.
6., according to described preparation method arbitrary in claim 1 to 5, it is characterized in that: described in number of twisting thread be 5 ~ 10, the silk thread being coated with glue-line by 5 ~ 10 is twisted a cord thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043830.7A CN104609742A (en) | 2015-01-21 | 2015-01-21 | Method for preparing tire cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043830.7A CN104609742A (en) | 2015-01-21 | 2015-01-21 | Method for preparing tire cord |
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|---|---|
| CN104609742A true CN104609742A (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510043830.7A Pending CN104609742A (en) | 2015-01-21 | 2015-01-21 | Method for preparing tire cord |
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| CN (1) | CN104609742A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594170A (en) * | 2004-01-17 | 2005-03-16 | 黎绍明 | Formula of glass fiber cord dipping solution |
| CN101328690A (en) * | 2008-07-30 | 2008-12-24 | 江苏九鼎新材料股份有限公司 | Fabrication process of glass fibre for enhanced tooth type belt |
| CN102634986A (en) * | 2012-04-20 | 2012-08-15 | 北京化工大学 | Method for pretreating fibers |
| CN103131345A (en) * | 2011-12-05 | 2013-06-05 | 何信定 | Gummed cloth and manufacturing method of gummed cloth |
| CN103469579A (en) * | 2013-08-28 | 2013-12-25 | 山东鲁普科技有限公司 | Dipping liquid of polyamide fiber cord |
-
2015
- 2015-01-21 CN CN201510043830.7A patent/CN104609742A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594170A (en) * | 2004-01-17 | 2005-03-16 | 黎绍明 | Formula of glass fiber cord dipping solution |
| CN101328690A (en) * | 2008-07-30 | 2008-12-24 | 江苏九鼎新材料股份有限公司 | Fabrication process of glass fibre for enhanced tooth type belt |
| CN103131345A (en) * | 2011-12-05 | 2013-06-05 | 何信定 | Gummed cloth and manufacturing method of gummed cloth |
| CN102634986A (en) * | 2012-04-20 | 2012-08-15 | 北京化工大学 | Method for pretreating fibers |
| CN103469579A (en) * | 2013-08-28 | 2013-12-25 | 山东鲁普科技有限公司 | Dipping liquid of polyamide fiber cord |
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Application publication date: 20150513 |
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