CN108050207A - A kind of enhanced V bands - Google Patents
A kind of enhanced V bands Download PDFInfo
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- CN108050207A CN108050207A CN201711278896.XA CN201711278896A CN108050207A CN 108050207 A CN108050207 A CN 108050207A CN 201711278896 A CN201711278896 A CN 201711278896A CN 108050207 A CN108050207 A CN 108050207A
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- cord fabric
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/04—V-belts, i.e. belts of tapered cross-section made of rubber
- F16G5/06—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
- F16G5/08—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a kind of enhanced V bands.The enhanced V bands include covering glue fiber tissue layer, tension element core-wire layer, bonding glue-line and compression glue-line, the bonding glue-line is filled in tension element core-wire layer, and the cord fabric of hardening is respectively arranged between glue fiber tissue layer between tension element core-wire layer and compression glue-line in tension element core-wire layer and covering.Compared with prior art, the present invention respectively sets one layer of hardening cord fabric with certain stiffness up and down in tension element core-wire layer, it is greatly improved the lateral stiffness of V bands, so that the deformation of belt reduces, fatigue performance improves, and transfers power and improves, and avoids the problem that compression glue-line stress concentration, transmission stability and reliability are improved, extends service life.
Description
Technical field
The present invention relates to transmission belt technical field of power transmission, are specifically a kind of enhanced V bands.
Background technology
At present, V bands have been widely used the various fields such as industrial machinery, motor bus, agricultural machinery.However as this
A little mechanically operated power constantly increase and use condition be more and more harsher and mechanical equipment to transmission parts service life and
Reliability improves, also higher and higher to the performance requirement of V bands.At high power in use, often needing high-tension, when V bands are held
The tensile force received is bigger, and the transversely deforming of V bands also will be bigger so that the centre of belt transverse direction section will be recessed, i.e. V bands are horizontal
It is arranged as being recessed into an arc under centre to section tension element cotton rope, makes the cotton rope of longitudinal arrangement not at a plane, cotton rope
Cotton rope unbalance stress when uneven distribution, transmission.At this moment it is mainly the both sides cotton rope stress of V bands, the cotton rope of both sides is easy for
Fatigue fracture is extracted, and band body abrasion is very fast, endurance life is low so that V band failures, service life is short, and transmission efficiency is low
The problems such as.Therefore it is highly desirable to and develops that a kind of big longitudinal flexible of lateral stiffness is good, the enhanced V of requirement can be met
Band.
Chinese patent CN200520006223.5 proposes a kind of reinforced automobile V belt, in core rope layer (also referred to as tension
Body) it is equipped between fiber fabric layer or/and between core rope layer and primer layer as the enhancement layer of the materials such as polyester, but do not provide poly-
Ester is which kind of structure and the form group enhancement layer, and its increase enhancement layer be in order to improve the endurance of V bands and tensile strength,
It is difficult to solve the problems, such as band in hightension lower band body transversely deforming.
In order to solve the problems, such as the transversely deforming of band, Chinese patent CN201610392035.3 proposes that one kind is cut for high-power
Side formula tooth form agricultural machinery V bands, it is (i.e. anti-that V band bodies include top layer of cloth, top glue-line, the strength layer of longitudinal arrangement successively from outside to inside
Draw body), cushion gum layer, transversely arranged cord ply and tooth glue-line.Chinese patent CN201620533664.9 proposes a kind of V bands, V
Band body is enclosed with base fabric, and V band bodies include top glue-line, the first enhancement layer, the second enhancement layer and primer layer from top to bottom, and first
The stiffener in stiffener and the second enhancement layer in enhancement layer is in spatial vertical.Although the V bands of both structures can improve horizontal stroke
To rigidity, but operationally, tooth glue-line or primer layer are acted on by shearing force, and stress is easily concentrated, and band body is easily damaged.This
Outside, due to above-mentioned transversely arranged cord or stiffener compare between it is whole without being formed, in use easily because mutual
It rubs and unsticking.
The content of the invention
It is an object of the present invention to provide a kind of enhanced V bands.It has higher lateral stiffness, endurance life
Well, the characteristics such as power is high, operate steadily, service life is grown are transferred, it is existing in the prior art to solve the problems, such as.
In order to solve the above technical problem, the present invention provides following technical solutions：
A kind of enhanced V bands, it is described including covering glue fiber tissue layer, tension element core-wire layer, bonding glue-line and compression glue-line
Bonding glue-line is filled in tension element core-wire layer, in tension element core-wire layer and is covered between glue fiber tissue layer and tension element core-wire layer
The cord fabric of hardening is respectively arranged between compression glue-line.
Preferably, the cord fabric is twisted for 1~3 strand of fiber, fibre single thread 930dtex~2200dtex.
Preferably, the fiber is polyester fiber, nylon fiber, rayon fiber, Polyvinylpyrrolidone fiber, poly- naphthalenedicarboxylic acid second
At least one of terephthalate fibers, aramid fiber, glass fibre.
Preferably, the cord fabric of the hardening uses the stiffness of three-point bending method test as (1~10) × 10-3N/
dtex。
Preferably, the cord fabric of the hardening uses the stiffness of three-point bending method test as (3~8) × 10-3N/dtex。
Preferably, the warp of the cord fabric is laterally setting.
Preferably, the V bands are edge V tape, infantees V bands or joined v-belt.
The preparation method of the cord fabric of above-mentioned hardening, the cord fabric of the hardening are activated through isocyanates and through isophthalic two
The cord fabric that phenol-formaldehyde-latex (RFL) curing process obtains, specific preparation process include the following steps：
(1) soaking：Cord fabric is immersed into isocyanate solution；
(2) activate：The cord fabric handled through step (1) is activated at 180~220 DEG C, soak time 25s~50s；
(3) secondary dipping：The cord fabric that will be handled through step (2) immerses Resorcin-Formaldehyde-Latex dipping solution；
(4) cure：The cord fabric handled through step (3) is cured at 180~240 DEG C, hardening time, 25s~45s was obtained
To the cord fabric of hardening.
Preferably, the isocyanates be Toluene-2,4-diisocyanate, 4- diisocyanate, hexamethylene diisocyanate, diphenylmethyl
It is extremely a kind of in alkane diisocyanate, polyphenyl polymethylene polyisocyanates.
Preferably, the latex of the Resorcin-Formaldehyde-Latex (RFL) is that butadiene-vinylpyridine copylymer latex, polychloroprene latex, chlorosulfonation are gathered
At least one of ethylene latex, NBR latex, hydrogenated butyronitrile latex, cis-butadiene cement breast, ethylene propylene rubber latex, EPDM latex etc..
Compared with prior art, the beneficial effects of the invention are as follows：Tension element core-wire layer respectively sets one layer up and down to be had centainly
The hardening cord fabric of stiffness is greatly improved the lateral stiffness of V bands so that the deformation of belt reduces, and fatigue performance carries
Height transfers power and improves, and avoids the problem that compression glue-line stress concentration, improves transmission stability and reliability, extending makes
Use the service life.
Description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Example is applied together for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structure diagram of one of the enhanced V bands of present invention edge V tape cross section.
Fig. 2 is one of the enhanced V bands of present invention structure diagrams of the infantees V with cross section.
Fig. 3 is the structure diagram of one of the enhanced V bands of present invention joined v-belt cross section.
Wherein：1- covers glue fiber tissue layer, 2- bondings glue-line, 3- tension element core-wire layers, 4,4 '-hardening cord fabric, 5- pressures
Contracting glue-line.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein
It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
V bands described here refer to GBT 6931.1《V belt translation term part 1 V belt translation basic terms》Defined V
Band, including standard have GB/T1171《General transmission classical V-belt》、GB/T12730《General transmission narrow V belt》、GB/
T12732《Automotive V-belt》、GB/T18860《Motorcycle variable speed V-belt》、GB/T 15327《The industrial wide V bands of speed change》、GB/T4829
《Agricultural machinery variable speed V-belt》、HG/T2819《Joined v-belt》、HG/T3745《Connection group classical V-belt》、HG/T4493《Agriculture machine
The light-duty V bands of tool》、SY6665《Oil field V band specifications》And JB/T11783.1《Reciprocating internal combustion engine accessory drive system the 1st
Point：Technical conditions》Deng, product structure pattern be infantees V bands, edge V tape, joined v-belt.
As shown in Figure 1, a kind of enhanced V bands, including covering glue fiber tissue layer (1), tension element core-wire layer (3) and compression glue
Layer (5), filled with bonding glue-line (2) in tension element core-wire layer (3)；In tension element core-wire layer (3), each one layer of setting is hard up and down
Change cord fabric (4,4 ') enhancement layer, hardening cord fabric (warp) is laterally setting.As shown in Figure 2,3, can glue covered as needed
It is set between fiber fabric layer (1) and hardening cord fabric (4 ') and upholds glue-line (not marking).
According to the present invention, the main rubber of enhanced V bands is natural rubber (NR), butadiene-styrene rubber (SBR), butadiene rubber
(BR), neoprene (CR), chlorosulfonated polyethylene rubber (CSM), alkylated chlorosulfonated polyethylene rubber (ACSM), nitrile rubber
(NBR), hydrogenated nitrile-butadiene rubber (HNBR), EP rubbers (EPM), at least one of ethylene propylene diene rubber (EPDM).
Foregoing rubber it is at least one with reinforcing agent, anti-aging agent, accelerating agent, activating agent, plasticizer, softening agent, vulcanizing agent,
Adhesive (if necessary), activating agent and processing aid, staple fiber (if necessary) rubber mixing machine (open mill or mixer) into
Row mixing, is made rubber composition.
According to the present invention, the fiber for covering glue fiber tissue layer (1) of enhanced V bands is cotton fiber, nylon fiber (PA), gathers
Ester fiber (PET), Polyvinylpyrrolidone fiber, at least one plain weave canvas being formed by weaving of aramid fiber, through bonding and sizing treatment,
It is such as handled through Resorcin-Formaldehyde-Latex (RFL) or/and rubber cement is handled.
According to the present invention, the cotton rope of the tension element core-wire layer (3) of enhanced V bands is polyester fiber (PET), poly- naphthalenedicarboxylic acid
Glycol ester fiber (PEN), aramid fiber (AR) it is at least one through first twist and retwist into cotton rope, through bond and sizing at
Reason, is such as handled through Resorcin-Formaldehyde-Latex (RFL) or surface cement is handled.
According to the present invention, the hardening cord fibers material of the enhancement layer of enhanced V bands is polyester fiber (PET), nylon
Fiber (PA), rayon fiber, Polyvinylpyrrolidone fiber, polyethylene naphthalate fiber (PEN), aramid fiber (AR), glass
At least one of fiber etc..
1~3 strand of the fiber that the cord fabric openpore of foregoing enhancement layer hardening cord fabric is 930~2200dtex of monofilament adds
It twists with the fingers.
Cord fabric has warp (also known as cord fabric thread, abbreviation cord) arrangement closely, and weft yarn arrangement is sparse, and shape is like the spy of curtain
Point.By weft yarn make warp compare between shape it is integral, avoid the problem that unsticking due to phase mutual friction in use.
Foregoing enhancement layer hardening cord fabric activated through isocyanates and through Resorcin-Formaldehyde-Latex (RFL) curing at
Reason obtains.
Foregoing isocyanates be Toluene-2,4-diisocyanate, 4- diisocyanate (TDI), hexamethylene diisocyanate (HDI), hexichol
At least one of dicyclohexylmethane diisocyanate (MDI), polyphenyl polymethylene polyisocyanates (PAPI) etc..
The stiffness (three-point bending method) (1~10) × 10 of foregoing enhancement layer hardening cord fabric-3N/dtex。
Further, the stiffness (three-point bending method) (3~8) × 10 of cord fabric is preferably hardened-3N/dtex。
When the stiffness (three-point bending method) of hardening cord fabric is less than 1 × 10-3During N/dtex, cord fabric rigidity deficiency is difficult
The V bands of high stiffening property are made, the effect of the present invention is not achieved.When hardening cord fabric stiffness (three-point bending method) be more than 10 ×
10-3During N/dtex, cord fabric rigidity is too big, it is difficult to carry out following process.
Foregoing hardening cord fabric production method：
1~3 strand of polyester fiber (PET), nylon fiber (PA), the artificial silk fibre for being first 930~2200dtex by monofilament
At least one twisting of dimension, Polyvinylpyrrolidone fiber, polyethylene naphthalate fiber, aramid fiber, glass fibre etc., is made curtain
Sub- cloth openpore, it is spare, commercially available cord fabric openpore can also be used.
Isocyanates is Toluene-2,4-diisocyanate, 4- diisocyanate (TDI), hexamethylene diisocyanate (HDI), diphenyl methane
At least one such as diisocyanate (MDI), polyphenyl polymethylene polyisocyanates (PAPI) is made with toluene or/and dimethylbenzene
Isocyanate solution, isocyanates/(toluene or/and dimethylbenzene) ratio (parts by weight) 3/97~15/85, best 5/95~10/
90, it is spare.
By cord fabric openpore by the first stock tank for filling isocyanate solution of dipping machine for tire cord fabric, then by 180
~220 DEG C of baking oven carries out fiber surface activation, and soak time 25s~50s is then through filling resorcinol-formaldehyde-glue
Second stock tank of newborn (RFL) solution, is finally cured, hardening time 25s~45s is made by 180~240 DEG C of baking oven
Harden cord fabric.
The proportioning of foregoing Resorcin-Formaldehyde-Latex (RFL)：Resorcinol (R)/formaldehyde (F) molar ratio for 1/2~
2/1, RF/L ratio is that 1/2~1/8, RFL dipping solutions concentration is 15~25% (with solids weight ratio meter namely dry weight ratio)
(with solid weight namely dry weight).
Foregoing latex be butadiene-vinylpyridine copylymer latex, polychloroprene latex, chlorosulfonated polyethylene latex, NBR latex, hydrogenated butyronitrile latex,
At least one of cis-butadiene cement breast, ethylene propylene rubber latex, EPDM latex etc..
The preparation of RFL dipping solutions：Resorcinol (R) and formaldehyde (F) are mixed by proportional quantity, add in the caustic soda of catalytic amount
(NaOH) make catalyst, given under 20 DEG C~30 DEG C environment contracting 6 it is small when more than, obtain RF and give contracting body.Then glue is added in by proportional quantity
Newborn (L) adds fossil water, adjusts RFL concentration 15~25% (with solid weight), stir evenly spare.
The stiffness of cord fabric presses GB/T33099《The measure three-point bending method of impregnation framework material stiffness》Test, institute
Data N divided by total dtex is obtained, is the N/dtex of patent of the present invention.For example, polyester cord 1100dtex/2, total dtex are
2200dtex measures stiffness as 10N by GB/T33099 methods, is then 10/2200=4.5 × 10-3N/dtex。
Embodiment 1
Harden cord fabric (4,4 ')：
Nylon cord openpore (offer of table mountain China Shenma Group Co., Ltd.), PA66, specification 1400dtex/2；Two
Methylenebis phenyl isocyanate (MDI) (Yantai Wanhua product)/toluene ratio (parts by weight) is 5/95, and 200 DEG C of activation temperature is living
Change time 30s；Resorcin-Formaldehyde-Latex (RFL)：R/F (molar ratio) 1/2, RF/ EPDM latex is (with solids weight
Than meter) 1/4, RFL concentration 20% (with solid weight)；230 DEG C of solidification temperature, hardening time 35S.Obtained cord fabric is endured with all one's will
Degree 3.5 × 10-3N/dtex。
Compress glue-line (5)：
It is 5 parts of zinc oxide, hard containing main rubber ethylene propylene diene rubber 100 parts of (A Langxin sections product) (parts by weight, similarly hereinafter)
1 part of resin acid, 1.5 parts of anti-aging agent RD, 45 parts of carbon black N330,2,280 10 parts of paraffin oil, 20 parts of staple fiber, crosslinking agent B IPB
4.5 parts, 2 parts of assistant crosslinking agent PDM's mixes rubber composition through mixer.
Bond glue-line (2)：
It is 5 parts of zinc oxide, hard containing main rubber ethylene propylene diene rubber 100 parts of (A Langxin sections product) (parts by weight, similarly hereinafter)
1 part of resin acid, 2 parts of anti-aging agent RD, 45 parts of carbon black N770,12 parts of white carbon, 5 parts of adhesive, 2,280 10 parts of paraffin oil, crosslinking
1.5 parts of 3.8 parts of agent BIPB's, assistant crosslinking agent PDM mixes rubber composition through mixer.
Cover glue fiber tissue layer (1)：
Cotton fiber and polyester fiber blended cloth, specification 21S 3 × 3 (the state-run Textile Co., Ltd.'s product in Taizhou), at gluing
Reason.
Tension element core-wire layer (3)：
High modulus low shrinkage polyester fiber, specification 1100dtex 2 × 3 (Miller Products).
V bands make：It is laid with successively and covers glue fiber tissue layer (1), hardening cord fabric (4 '), bonding glue-line (2), by tension element
Core-wire layer (3) is wrapped on bonding glue-line (2), then is laid with bonding glue-line (2), hardening cord fabric (4) and compression glue-line successively
(5), V band finished products are formed after vulcanizing, cut, polish.
V band specifications and models：AV17 × 1200, REC.
Embodiment 2
Harden cord fabric (4,4 ')：
Polyester cord openpore (offer of Wuxi Tai Ji Industrial Co., Ltd.), PET, specification 1100dtex/2；Diphenylmethyl
Alkane diisocyanate (MDI) (Yantai Wanhua product)/toluene ratio (parts by weight) 7/93,200 DEG C of activation temperature, soak time
35s；235 DEG C of solidification temperature, hardening time 40s.Cord fabric stiffness 4.7 × 10 is made-3N/dtex。
Other are the same as embodiment 1.
Embodiment 3
Harden cord fabric (4,4 ')：
Polyester cord openpore (offer of Wuxi Tai Ji Industrial Co., Ltd.), PET, specification 1100dtex/2；Diphenylmethyl
Alkane diisocyanate (MDI) (Yantai Wanhua product)/toluene ratio (parts by weight) 10/90,200 DEG C of activation temperature, soak time
35s；235 DEG C of solidification temperature, cord fabric stiffness 6.2 × 10 is made in hardening time 35s.-3N/dtex。
Other are the same as embodiment 1.
Embodiment 4
Harden cord fabric (4,4 ')：
Nylon cord openpore (offer of table mountain China Shenma Group Co., Ltd.), PA66, specification 1400dtex/2；Benzene
Quito methylene polyisocyanates (PAPI) (Yantai Wanhua product)/toluene ratio (parts by weight) 7/93,200 DEG C of activation temperature,
Soak time 35s；Resorcin-Formaldehyde-Latex (RFL)：R/F (molar ratio) 1/2, RF/ polychloroprene latexs are (with solids weight ratio
Meter) 1/4, RFL concentration 20% (with solid weight)；230 DEG C of solidification temperature, hardening time 30s.Cord fabric stiffness is made
5.3×10-3N/dtex。
Compress glue-line (5)
Main rubber neoprene (CR) 100 parts of (Shan Na synthetic rubber Co., Ltd product) (parts by weight, similarly hereinafter), carbon black
55 parts of N550,4 parts of magnesia, 5 parts of zinc oxide, 1 part of stearic acid, ODA3 parts of anti-aging agent, 5 parts of aromatic naphtha, 25 parts of staple fiber, rush
Into 0.5 part of agent NA-22, rubber composition is mixed through mixer.
Bond glue-line (2)
Main rubber neoprene (CR) 100 parts of (Shan Na synthetic rubber Co., Ltd product) (parts by weight, similarly hereinafter), carbon black
40 parts of N774,15 parts of white carbon, 4 parts of magnesia, 5 parts of zinc oxide, 1 part of stearic acid, ODA3 parts of anti-aging agent, 8 parts of adhesive, virtue
10 parts of hydrocarbon ils, 0.3 part of accelerant N A-22, rubber composition is mixed through mixer.
Cover glue fiber tissue layer (1)：
Cotton fiber and the blended Wide-angle cloth of polyester fiber (the state-run Textile Co., Ltd.'s product in Taizhou), specification 21S 3 × 3 are applied
Glue processing.
Tension element core-wire layer (3)：
Aramid fiber (AR) cotton rope (Qingdao Tian Bangxianye Co., Ltds product), specification 1100dtex 2 × 5, at gluing
Reason.
V band specifications and models：SBX × 1200, REC.
V band manufacturing process is the same as embodiment 1.
Comparative example 1
With tire polyester cord (Wuxi Tai Ji Industrial Co., Ltd. product, specification 1100dtex/2, stiffness 0.42 ×
10-3N/dtex) the hardening cord fabric of alternate embodiment 1.Other are the same as embodiment 1.
Comparative example 2
With tire nylon cord fabric (table mountain Shen Ma Industrial Co., Ltd.s product, specification 1400dtex/2, stiffness 0.4
×10-3N/dtex) the hardening cord fabric of alternate embodiment 4.Other are the same as embodiment 4.
Above example 1~4, comparative example 1~2 are relatively shown in Table 1 in detail.
V band fatigue lives, by GB/T11545《The V band fatigue tests of V belt translation auto industry》, it is three for main rubber
First EP rubbers V bands, test temperature are 120 DEG C；It is chloroprene rubber V band for main rubber, test temperature is 85 DEG C；
Transfer function is tested, and is tested on V band fatigue testers, test speed 2500RPM, follower continuously applies work(
Rate, until slip reaches power (KW) corresponding when 2%.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent substitution to which part technical characteristic.
Within the spirit and principles of the invention, any modifications, equivalent replacements and improvements are made should be included in the present invention's
Within protection domain.
Claims (9)
1. a kind of enhanced V bands, described viscous including covering glue fiber tissue layer, tension element core-wire layer, bonding glue-line and compression glue-line
Rubber alloy layer is filled in tension element core-wire layer, tension element core-wire layer and cover between glue fiber tissue layer and tension element core-wire layer with
The cord fabric of hardening is respectively arranged between compression glue-line.
2. enhanced V bands according to claim 1, it is characterised in that：The cord fabric is twisted for 1~3 strand of fiber,
Fibre single thread 930dtex~2200dtex.
3. enhanced V bands according to claim 1, it is characterised in that：The fiber is polyester fiber, nylon fiber, people
Make at least one of silk fiber, Polyvinylpyrrolidone fiber, polyethylene naphthalate fiber, aramid fiber, glass fibre.
4. enhanced V bands according to claim 1, it is characterised in that：The cord fabric of the hardening uses three-point bending method
The stiffness of test is (1~10) × 10-3N/dtex。
5. enhanced V bands according to claim 4, it is characterised in that：The cord fabric of the hardening uses three-point bending method
The stiffness of test is (3~8) × 10-3N/dtex。
6. enhanced V bands according to claim 1, it is characterised in that：The warp of the cord fabric is laterally setting.
7. enhanced V bands according to claim 1, it is characterised in that：The V bands are edge V tape, infantees V bands or connection group V
Band.
8. the preparation method of the cord fabric hardened described in claim 1, the cord fabric of the hardening be through isocyanates activation and
The cord fabric obtained through Resorcin-Formaldehyde-Latex curing process, specific preparation process include the following steps：
(1) soaking：Cord fabric is immersed into isocyanate solution；
(2) activate：The cord fabric handled through step (1) is activated at 180~220 DEG C, soak time 24s~50s；
(3) secondary dipping：The cord fabric that will be handled through step (2) immerses Resorcin-Formaldehyde-Latex dipping solution；
(4) cure：The cord fabric handled through step (3) is cured at 180~240 DEG C, hardening time 25s~45s is obtained firmly
The cord fabric of change.
9. preparation method according to claim 8, it is characterised in that：The isocyanates be Toluene-2,4-diisocyanate, 4- diisocyanates
In ester, hexamethylene diisocyanate, methyl diphenylene diisocyanate, polyphenyl polymethylene polyisocyanates to one
Kind.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296700A (en) * | 2018-11-29 | 2019-02-01 | 浙江奋飞橡塑制品有限公司 | E type grouped belt |
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| CN102212963A (en) * | 2010-04-01 | 2011-10-12 | 固特异轮胎和橡胶公司 | Atmospheric plasma treatment of reinforcement cords and use in rubber articles |
| CN106460313A (en) * | 2014-06-12 | 2017-02-22 | 科德沙环球纱线工业和贸易股份公司 | Dipping solution for cord fabrics |
| CN207975187U (en) * | 2017-12-06 | 2018-10-16 | 无锡市贝尔特胶带有限公司 | A kind of enhanced V bands |
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