CN107574670B - The cord fabric warp thread and preparation method and application of cord fabric warp thread dipping solution and preparation - Google Patents
The cord fabric warp thread and preparation method and application of cord fabric warp thread dipping solution and preparation Download PDFInfo
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Abstract
The invention discloses the cord fabric warp thread and preparation method and application of a kind of cord fabric warp thread dipping solution and preparation, the mass content of dipping solution each component is resorcinol 1%~3%, formaldehyde 0.2%~2%, latex 25%~60%, sodium hydroxide 0.03%~0.05%, ammonium hydroxide 1%~5%, anti-hydrolysis agent 0.1%~1%, remaining is water, each group subtotaling 100%.The raising 7% of the modular ratio routine cord of cord fabric warp thread produced by the present invention, Dimensional Stability Index improves 11.8% than conventional cord, high temperature adhesives power improves 12.1% (H extraction: 170 DEG C of X40Min), and after flexural fatigue test, bonding force conservation rate improves 22.4%.Cord fabric warp thread produced by the present invention is applied in riding and light truck radial tyre, by the high speed performance and stiffness analysis of contrast test tire, the results showed that the tire of cord fabric warp thread manufacture of the invention improves a speed step than the tire that normal polyester cord manufactures.
Description
Technical field
The present invention relates to tire manufacturing techniques fields, more particularly to a kind of cord fabric warp thread and preparation method thereof and answer
With.
Background technique
Reinforce the rayon fiber of framework material as thermosetting property with its excellent bonding force, high temperature handling and height
Dimensional stability, and being widely used in speed is more than in very-high performance (UHP) carcass of 240km/h (V grades).Recent two decades
Come, with the development and excellent cost performance of high mode and low mode polyester cord technology, polyester cord has been widely used in car
In radial tire and the tire of part high speed rank.
Currently, although the production of rayon fiber achieves progress in terms of polluting environment, since rayon fiber is
Cellulose fibre, surface there are also a large amount of hydrophilic polar group, the easily vapor in draw air, hydroscopicity can to 13% with
On, and the performances such as bonding force and strength is caused to be decreased obviously, and it is harsher to the environmental requirement of workshop, increase reality
The production cost on border.Polyester fiber is since surface only has few polar group, and not hygroscopic, hydroscopicity is less than 0.5%, no
The performance of polyester cord can be caused to significantly affect, this is determined by the essence of material.Therefore how research is to common Gao Mo
Low-shrinkage polyester fiber is modified, and changes the aggregated structure of polyester material by technique, can satisfy UHP wheel to obtain
Tire carcass ply requires and has the novel high mode and low mode polyester cord of preferable tyre performance, is one more significant
Project.
Summary of the invention
Chinese patent application " high-intensitive high-dimensional stability polyester cord warp thread and its preparation method and application " (application
Number: 201610854942.5) entire contents are quoted from this.Inventor is on the basis of the patent, to impregnation formula of liquid, spinning
Parameter and gum dipping process parameter have carried out more careful exploration and improvement.In 89107266.7 He of DSP spining technology patent ZL
Special impregnation formula of liquid, spinning technology parameter and gum dipping process parameter are combined on the basis of ZL 89104572.4, are prepared
High-strength high thermal stability polyester cord, wherein DSP is the high mode and low mode polyester fiber of high speed spinning.
The first object of the present invention is to provide a kind of cord fabric warp thread dipping solution.
The second object of the present invention is to provide a kind of preparation method of cord fabric warp thread dipping solution.
The third object of the present invention is to provide a kind of cord fabric warp thread.
The fourth object of the present invention is to provide a kind of preparation method of cord fabric warp thread.
The fifth object of the present invention is to provide the application of cord fabric warp thread prepared by the present invention.
A kind of cord fabric warp thread dipping solution, the mass content of each component are resorcinol 1%~3%, formaldehyde 0.2%~
2%, latex 25%~60%, sodium hydroxide 0.03%~0.05%, ammonium hydroxide 1%~5%, anti-hydrolysis agent 0.1%~1%,
Yu Weishui, each group subtotaling 100%.
Cord fabric warp thread dipping solution of the present invention, wherein the anti-hydrolysis agent is the resistant to hydrolysis of Carbodiimides
Agent.
The preparation method of cord fabric warp thread dipping solution of the present invention, comprising the following steps:
(1) sodium hydroxide, resorcinol, formaldehyde are sequentially added and configures solution in water；If system pH is not 8~12
In range, liquid is adjusted with NaOH and is adjusted；
(2) it is stirred to react 2~8h at 20~40 DEG C, obtains phenol resin solution；
(3) then latex is uniformly mixed to obtain dipping solution with phenol resin solution；
(4) ammonium hydroxide is added, is stirred to react 2-8h at 20~40 DEG C；
(5) it is eventually adding anti-hydrolysis agent, is mixed.
A kind of preparation method of cord fabric warp thread, including gum dipping process process；In gum dipping process process, two-bath gum dipping leaching
The dipping solution that stain uses is cord fabric warp thread dipping solution of the present invention.
The preparation method of cord fabric warp thread of the present invention, wherein the method for two-bath gum dipping dipping is at room temperature
After impregnation 10s-60s, then at a temperature of 120-240 DEG C dry 1-10min.
The preparation method of cord fabric warp thread of the present invention, comprising the following steps:
(1) spinning technique process: slice → drying → Screw Extrusion → melt distribution pipe → spinning manifold → filament spinning component
→ annealer → ring wind quenching → oils → drawing-off → winding, obtains precursor；
Its technological parameter are as follows: spinning speed: 4800-5200mpm；Draw ratio: 1.65-1.85；Annealer temperature: 230-
360℃；Inherent viscosity: 0.98-1.06g/dl；
(2) it gum dipping process process: leads out → preceding storage cloth holder → first bath impregnation dipping → and it is dry to aspirate the → the first area for the first time
The → the two-bath gum dipping of → stretching dipping → secondary suction the → the second area drying → sizing → breaking knife → storing up cloth holder afterwards → batches；
To terylene tyre cord；
Its technological parameter are as follows: first 160 DEG C of area's drying temperature and dry tension 850-1200g；235 DEG C of draft temperature and drawing
Expansion force 1250-1800g, second 160 DEG C of area's drying temperature and dry tension 850-1200g, 235 DEG C of setting temperature and sizing
Power 1350-1700g.
The preparation method of cord fabric warp thread of the present invention, wherein in gum dipping process process, first bath impregnation dipping is adopted
Impregnation formula of liquid are as follows: each component mass content is sodium hydroxide 0.003%~0.005%, sorbierite glycidol ether
0.1%~1%, polyfunctional group glycidol ether 0.5%~2%, caprolactam blocked isocyanate 2%~8%.
The preparation method of cord fabric warp thread of the present invention, wherein the system for the dipping solution that first bath impregnation dipping uses
Preparation Method be by sodium hydroxide, sorbierite glycidol ether, polyfunctional group glycidol ether, caprolactam blocked isocyanate according to
It is secondary to be added to the water dispersion, 2~8h is stirred to react at 20~40 DEG C.
Cord fabric warp thread obtained by any preparation method of the present invention.
Application of the cord fabric warp thread of the present invention in riding and light truck radial tyre.
The riding and light truck radial tyre of cord fabric warp thread preparation of the invention, with conventional high mode and low mode polyester cord 1X50
Type cord fabric warp thread is manufactured compared with money tire, the thermal dimensional stability of tire, uniformity, handling and high speed performance
All it is significantly improved.
The beneficial effects of the present invention are:
(1) preparation method of cord fabric warp thread dipping solution and cord fabric warp thread of the present invention can effectively improve often
Advise the bonding force and and dimensional stability between the modulus and rubber of polyester cord warp thread；The crystallinity of material is improved,
Keep its internal structure closer, can be very good to resist destruction of the extraneous heat to material internal structure, and then obtains and embodied
Excellent properties.
(2) cord fabric warp thread produced by the present invention, the advantages of in addition to remaining normal polyester cord fabric warp thread, such as water absorption rate
Low and cost performance is high outer, uses the precursor fiber number high for the high-modulus of 1500DX2 375TPM made from 1500D (danier)
Thermal stability polyester cord warp thread, modulus reach 2013N/ root, and high temperature (170 DEG C of x 40Min) H extraction bonding force reaches
140.1N/cm, after flexural fatigue test, bonding force conservation rate is 89.2%, and Dimensional Stability Index (DSI) is 6.7；And it adopts
It is the common high mode and low mode polyester cord 1X50 of 1500D/2 375TPM made from 1500 daniers with precursor fiber number, modulus is
1881N/ root, the H extraction bonding force under equal conditions is 125N/cm, and after flexural fatigue test, bonding force conservation rate is
72.9%, Dimensional Stability Index (DSI) is 7.6.Cord fabric warp thread prepared by the present invention is in modulus, high temperature adhesives power and ruler
It all improves a lot in terms of very little stability.
(3) application of the cord fabric warp thread produced by the present invention in riding and light truck radial tyre, cord specification are
2000Dx2 240TPM 92EPDM, manufactured tire specification are 245/35R20 95Y.Test result shows the present invention indoors
Cord fabric warp thread can carry out more preferably handling for tire belt.
(4) compared with patent application 201610854942.5, this patent improves the formula of dipping solution, and optimizes and revises
Spinning parameter and gum dipping process parameter, to obtain, performance is more preferable, applicability more preferably cord fabric warp thread.
Illustrate the curtain with specific embodiment to cord fabric warp thread dipping solution and preparation of the present invention with reference to the accompanying drawing
Sub- cloth warp thread and preparation method are described further with application.
Detailed description of the invention
Fig. 1 is preparation method total technological process figure of the invention.
Fig. 2 is the preparation technology figure of spinning link.
Fig. 3 is the preparation technology figure of impregnation heat treatment link.
Fig. 4 is hot-stretch curve under room temperature, and curve 1 is that the common high mode and low mode of 1500DX2 that 1X50 type industrial yarn obtains is poly-
Ester cord fabric thread (comparative example 1)；Curve 2 is the 1680DX2 cord fabric thread that artificial silk obtains；Curve 3 is made from embodiment 2
1500DX2 high-modulus high thermal stability polyester cord warp thread.
Fig. 5 is that DMA analyzes comparison diagram, and curve 1 is the 1680DX2 cord fabric thread composite modulus curve that artificial silk obtains, curve 2
For the high mould high thermal stability cord fabric warp thread 1500DX2 composite modulus curve (single modulus is 1881N) that embodiment 2 obtains,
The composite modulus curve (comparative example 1) that curve 3 is conventional polyester cord 1500DX2 (single modulus is 2013N).
Fig. 6 is DSI (Dimensional Stability Index), and index is smaller, and it is better to represent dimensional stability.1 is artificial silk acquisition
1680DX2 cord fabric thread；2 be high mould high thermal stability polyester cord warp thread -1500DX2 made from embodiment 2；3 be common high
Mould low-shrinkage polyester cord (1X50) -1500DX2 (comparative example 1).
Fig. 7 is XRD analysis comparison, and curve 1 is 1500DX2 high mould high thermal stability polyester cord made from embodiment 1
Warp thread；Curve 2 is the common high mode and low mode polyester cord (comparative example 1) of 1500DX2 that 1X50 type industrial yarn obtains.
Specific embodiment
The physics of cord fabric warp thread in the polyester cord warp thread as made from following methods measurement embodiment and comparative example
Performance:
(1) conventional extension test: according to standard ASTM-D885, tensile speed: 254mm/min, clamp distance 254mm；It adopts
With universal material puller system Instron3367, fixture: 2714-006.
(2) free shrink method: at room temperature, under the pre-tension of 0.05g/D, the ruler for being 0.1mm with precision is quasi-
L0=1 meters of long samples are really measured, distance is sampled with marking pen or label paper accurate identification, then hangs over sample on specimen holder,
And quickly put into inside 177 DEG C of baking oven, after heat treatment 30 minutes, sample is taken out from baking oven and under the conditions of 24 DEG C, RH55%
30min or more is balanced, the identification length L1 after heat treatment, the then free shrink measured are then measured are as follows:
Free shrink=L1/L0 × 100% (2)
(3) dimensional stability appraisal procedure, reference formula (3) calculate:
DSI=elongation at specified load+free shrink (3)
DSI --- Dimensional Stability Index, index is smaller, and it is better to represent dimensional stability, %；
Elongation at specified load --- cord normal temperature condition under stretch, elongation of the constant load at 2cN/Dtex is as a result, %；
Baking oven free shrink of free shrink --- the cord at 177 DEG C, %.
(4) DMA is tested: being tested using II dynamic mechanical analyzer of BOSE Model:3230SERIES, test condition is
Sample length 30mm, dynamic scan frequency are 5Hz, and oscillating load is 5~25N, and scanning temperature range is 25~190 DEG C.
(5) XRD test: use X ' Pert PRO Multi-functional X ray diffractometer, 1/2 ° of divergent slit；Antiscatter slits
5mm；Easel mask 15mm；Receiver X ' Celerator；2 θ of scanning range=5-60 °；0.196603 °/Sec of scanning speed；Scanning
Step-length 0.0167113Sec；Specimen holder measures cord fabric warp thread using the specimen holder in patent ZL 201220475618.X
XRD diagram.
(6) it repeated bend test: is tested using the band-like flexural fatigue tester of Ueshima FT410, revolving speed is
1200 revs/min, test runs 36000 turns at a temperature of room temperature, carries out test sample with stretching-machine and carries out the viscous of fatigue front and back
With joint efforts.The bond properties between characterization tyre cord and rubber is carried out with bonding force conservation rate.
Embodiment 1
A kind of high-modulus high thermal stability polyester cord warp thread, the concrete technology link of preparation method are as follows: slice →
Spinning → twisting weaving → impregnation heat treatment.As shown in Figure 1.
Process is as shown in Figure 2: PET is sliced 1 → screw rod of raw material drying melting extrusion, 2 → melt pipe melt, 3 → spinning of distribution
Silk cabinet insulation 4 → filament spinning component spinning, 4 → annealer is quickly cooled down 5 → silk table face to silk to silk heat preservation 5 → circular blow wind and oils
→ drawing-off screen carries out 6 → high speed winding head of drawing and heat-setting coiling and molding 7, obtains precursor.Its technological parameter are as follows: spinning speed:
4800-5200mpm；Annealer temperature: 230-360 DEG C；Draw ratio: 1.65-1.85 and inherent viscosity: 0.98-1.06g/dl.
Wherein, the specific steps process of impregnation heat treatment link is as shown in Figure 3: leading out 8 → preceding 9 → first bath of storage rack leaching
Glue impregnates 10 → tension bracket 11 → the dry 13 → tension bracket 14 in 12nd → the first area of suction for the first time → and stretches 15 → tension bracket 16 → the
Dry 19 → sizing, 20 → tension bracket, the 21 → breaking knife breaking 22 in 17 → 18th → the second area of secondary suction of two-bath gum dipping dipping → after
Storage rack 23 → batch 24 finally obtains high-modulus high thermal stability polyester cord warp thread.Its technological parameter are as follows: the firstth area is dry
160 DEG C of dry temperature and dry tension 850-1200g；235 DEG C of draft temperature and tensile stress 1250-1800g, the dry temperature in the secondth area
160 DEG C of degree and dry tension 850-1200g, 235 DEG C of setting temperature and sizing tension 1350-1700g.
Wherein, the impregnation formula of liquid that first bath impregnation dipping uses are as follows: each component mass content is sodium hydroxide 0.003%
~0.005%, sorbierite glycidol ether 0.1%~1%, polyfunctional group glycidol ether 0.5%~2%, caprolactam envelope
Close isocyanates 2%~8%.
The preparation method of dipping solution that first bath impregnation dipping uses is by sodium hydroxide, sorbierite glycidol ether, more
Functional group's glycidol ether, caprolactam blocked isocyanate sequentially add in water and disperse, and are stirred to react 2- at 20~40 DEG C
8h。
Wherein, the mass content for the dipping solution each component that two-bath gum dipping dipping uses is resorcinol 1%~3%, first
Aldehyde 0.2%~2%, latex 25%~60%, sodium hydroxide 0.03%~0.05%, ammonium hydroxide 1%~5%, Carbodiimides
Anti-hydrolysis agent 0.1%~1%, remaining is water, each group subtotaling 100%.The latex is SBR latex, VP latex or natural
Latex.
The preparation method for the dipping solution that two-bath gum dipping dipping uses, comprising the following steps:
(1) sodium hydroxide, resorcinol, formaldehyde are sequentially added and configures solution in water；If system pH is not 8~12
In range, liquid is adjusted with NaOH and is adjusted；
(2) it is stirred to react 2-8h at 20~40 DEG C, obtains phenol resin solution；
(3) then latex is uniformly mixed to obtain dipping solution with phenol resin solution；
(4) ammonium hydroxide is added, is stirred to react 2-8h at 20~40 DEG C；
(5) it is eventually adding the anti-hydrolysis agent of Carbodiimides, is mixed.
After the method for first bath and two-bath gum dipping dipping is impregnation 10s-60s at room temperature, then in 120-240 DEG C of temperature
Lower drying 1-10min.
Embodiment 2
A kind of high-modulus high thermal stability polyester cord warp thread, the concrete technology link of preparation method are as follows: slice →
Spinning → twisting weaving → impregnation heat treatment.As shown in Figure 1.
Process is as shown in Figure 2: PET is sliced 1 → screw rod of raw material drying melting extrusion, 2 → melt pipe melt, 3 → spinning of distribution
Silk cabinet insulation 4 → filament spinning component spinning, 4 → annealer is quickly cooled down 5 → silk table face to silk to silk heat preservation 5 → circular blow wind and oils
→ drawing-off screen carries out 6 → high speed winding head of drawing and heat-setting coiling and molding 7, obtains precursor.Its technological parameter is shown in Table 1.
Wherein, the specific steps process of impregnation heat treatment link is as shown in Figure 3: leading out 8 → preceding 9 → first bath of storage rack leaching
Glue impregnates 10 → tension bracket 11 → the dry 13 → tension bracket 14 in 12nd → the first area of suction for the first time → and stretches 15 → tension bracket 16 → the
Dry 19 → sizing, 20 → tension bracket, the 21 → breaking knife breaking 22 in 17 → 18th → the second area of secondary suction of two-bath gum dipping dipping → after
Storage rack 23 → batch 24 finally obtains high-modulus high thermal stability polyester cord warp thread.Its technological parameter is shown in Table 1.
Wherein, the impregnation formula of liquid that first bath impregnation dipping uses are as follows: each component mass content is sodium hydroxide 0.003%
~0.005%, sorbierite glycidol ether 0.1%~1%, polyfunctional group glycidol ether 0.5%~2%, caprolactam envelope
Close isocyanates 2%~8%.
The preparation method of dipping solution that first bath impregnation dipping uses is by sodium hydroxide, sorbierite glycidol ether, more
Functional group's glycidol ether, caprolactam blocked isocyanate sequentially add in water and disperse, and are stirred to react 2- at 20~40 DEG C
8h。
Wherein, the mass content for the dipping solution each component that two-bath gum dipping dipping uses is resorcinol 1%~3%, first
Aldehyde 0.2%~2%, latex 25%~60%, sodium hydroxide 0.03%~0.05%, ammonium hydroxide 1%-5%, Carbodiimides
Anti-hydrolysis agent 0.1%~1%, remaining is water, each group subtotaling 100%.The latex is SBR latex, VP latex or natural gum
Cream.
The preparation method for the dipping solution that two-bath gum dipping dipping uses, comprising the following steps:
(1) sodium hydroxide, resorcinol, formaldehyde are sequentially added and configures solution in water；If system pH is not 8~12
In range, liquid is adjusted with NaOH and is adjusted；
(2) it is stirred to react 2-8h at 20~40 DEG C, obtains phenol resin solution；
(3) then latex is uniformly mixed to obtain dipping solution with phenol resin solution；
(4) ammonium hydroxide is added, is stirred to react 2-8h at 20~40 DEG C；
(5) anti-hydrolysis agent of Carbodiimides is added, mixes.
After the method for first bath and two-bath gum dipping dipping is impregnation 10s-60s at room temperature, then in 120-240 DEG C of temperature
Lower drying 1-10min.
The performance of final high-modulus high thermal stability polyester cord warp thread obtained is as shown in table 1.
Embodiment 3
A kind of high-modulus high thermal stability polyester cord warp thread, with embodiment 2, technological parameter is shown in Table preparation method
Shown in 1.
The performance of final high-modulus high thermal stability polyester cord warp thread obtained is as shown in table 1.
Embodiment 4
A kind of high-modulus high thermal stability polyester cord warp thread, with embodiment 2, technological parameter is shown in Table preparation method
Shown in 1.
The performance of final high-modulus high thermal stability polyester cord warp thread obtained is as shown in table 1.
Embodiment 5
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, wherein two-bath gum dipping dipping is adopted
Impregnation formula of liquid removes anti-hydrolysis agent.Remaining is remained unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 6
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is two (2,6- diisopropyl phenyl) carbodiimides in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 7
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is two [4- (1- methyl-1-phenylethyl)-2,6- diisopropyl phenyl] carbodiimides in glue formula.Remaining
Parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 8
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is two (4- phenoxy group -2,6- diisopropyl phenyl) carbodiimides in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 9
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is two (4- tert-butyl -2,6- diisopropyl phenyl) carbodiimides in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 10
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is tetramethylxylene diisocyanate base polycarbodiimide in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 11
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is commercialization Stabaxol-1 in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 12
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is commercialization Stabaxol-P in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 13
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is commercialization Stabaxol-P100 in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 14
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is commercialization Stabaxol-P200 in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
Embodiment 15
A kind of cord fabric warp thread, preparation method and technological parameter are compared with embodiment 2, by the leaching of two-bath gum dipping dipping
Anti-hydrolysis agent is methyl diphenylene diisocyanate base polycarbodiimide in glue formula.Remaining parameter remains unchanged.
The H extraction bonding force of final cord fabric warp thread obtained is as shown in table 3.
For prominent beneficial effects of the present invention, following comparative example test has also been carried out.
Comparative example 1
A kind of common high mode and low mode polyester cord warp thread, the concrete technology link of preparation method are as follows: slice → spinning
→ twisting weaving → impregnation heat treatment.As shown in Figure 1.
Process is as shown in Figure 2: PET is sliced 1 → screw rod of raw material drying melting extrusion, 2 → melt pipe melt, 3 → spinning of distribution
Silk cabinet insulation 4 → filament spinning component spinning, 4 → annealer is quickly cooled down 5 → silk table face to silk to silk heat preservation 5 → circular blow wind and oils
→ drawing-off screen carries out 6 → high speed winding head of drawing and heat-setting coiling and molding 7, obtains precursor.Its technological parameter is shown in Table 1.
Wherein, the specific steps process of impregnation heat treatment link is as shown in Figure 3: leading out 8 → preceding 9 → first bath of storage rack leaching
Glue impregnates 10 → tension bracket 11 → the dry 13 → tension bracket 14 in 12nd → the first area of suction for the first time → and stretches 15 → tension bracket 16 → the
Dry 19 → sizing, 20 → tension bracket, the 21 → breaking knife breaking 22 in 17 → 18th → the second area of secondary suction of two-bath gum dipping dipping → after
Storage rack 23 → batch 24 finally obtains common high mode and low mode polyester cord warp thread.Its technological parameter is shown in Table 1.
Wherein, the impregnation formula of liquid that first bath impregnation dipping uses are as follows: each component mass content is sodium hydroxide 0.003%
~0.005%, sorbierite glycidol ether 0.1%-1%, polyfunctional group glycidol ether 0.5%--2%, caprolactam closing
Isocyanates 2%-8%.
The preparation method of dipping solution that first bath impregnation dipping uses is by sodium hydroxide, sorbierite glycidol ether, more
Functional group's glycidol ether, blocked isocyanate, which sequentially add in water, to be dispersed, and is stirred to react 2-8h at 20~40 DEG C.
Wherein, the mass content for the dipping solution each component that two-bath gum dipping dipping uses is resorcinol 1%~3%, first
Aldehyde 0.2%~2%, latex 25%~60%, sodium hydroxide 0.03%~0.05%, ammonium hydroxide 1%-5%, diphenyl methane two are different
Cyanic acid ester group polycarbodiimide 0.1%-1%, remaining is water, each group subtotaling 100%.The latex is SBR latex, VP glue
Cream or Heveatex.
The preparation method for the dipping solution that two-bath gum dipping dipping uses, comprising the following steps:
(1) sodium hydroxide, resorcinol, formaldehyde are sequentially added and configures solution in water；If system pH is not 8~12
In range, liquid is adjusted with NaOH and is adjusted；
(2) it is stirred to react 2-8h at 20~40 DEG C, obtains phenol resin solution；
(3) then latex is uniformly mixed to obtain dipping solution with phenol resin solution；
(4) ammonium hydroxide is added, is stirred to react 2-8h at 20~40 DEG C；
(5) methyl diphenylene diisocyanate base polycarbodiimide is added, mixes.
After the method for first bath and two-bath gum dipping dipping is impregnation 10s-60s at room temperature, then in 120-240 DEG C of temperature
Lower drying 1-10min.
The performance of final common high mode and low mode polyester cord warp thread obtained is as shown in table 1.
Comparative example 2
A kind of common high mode and low mode polyester cord warp thread, for preparation method with comparative example 1, technological parameter is shown in Table 1 institute
Show.
The performance of final common high mode and low mode polyester cord warp thread obtained is as shown in table 1.
Table 1
Embodiment 2, artificial silk, comparative example 1 physical property as seen in figures 3-6.
In conjunction with Fig. 7 as can be seen that the crystallinity of high mould high thermal stability polyester cord is than common high mode and low mode polyester cord
Crystallinity it is high, this is also the major endogeneous that its thermal stability improves, and crystallinity height can effectively improve polyester cord and resist temperature
The adverse effect to it is spent, its stability is improved.
Table 2
From table 2 it can be seen that the H extraction bonding force of embodiment 2 (high mould high thermal stability cord) is obviously than comparative example 1
(common high mode and low mode cord) is higher by very much, and the bonding force conservation rate of rayon cord is relatively high, substantially without significant change, but
It needs to be dried in advance, otherwise bonding force and rubber surface coverage rate are decreased obviously.
Table 3H extracts bonding force out
From this table 3 it is known that the H extraction bonding force of embodiment 15 (high mould high thermal stability cord) obviously compares embodiment
There are many being higher by for 5-14.
Table 4
From this table 4 it is known that embodiment 2 (high mould high thermal stability polyester cord) is after repeated bend test,
Its bonding force conservation rate is higher by 22.4% than comparative example 1 (common high mode and low mode polyester cord), and is just slightly below rayon cord.
5 Tire Testing Results of table
The correlated performance of cord for Tire testing such as table 5, the tire specification of manufacture are as follows: 245/35R20 95Y, it is specified
690 kilograms of load.
Table 6
Conclusion: tire made of high mould high thermal stability polyester cord touches wheel rim, experiment is eventually when pressing to wear intensity experiment
Only, tire does not destroy, in the same level in terms of coefficient of rolling resistance, but in terms of high speed and outside its tire after durable test
Conventional polyester cord tyre is superior in terms of edge dimensional stability.
Table 7
Conclusion: from table 7 it is known that high mould high thermal stability polyester tire its in terms of tire stiffness than conventional polyester curtain
Line wheel tire shows very big superiority.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (9)
1. a kind of cord fabric warp thread dipping solution, it is characterised in that: the dipping solution is the dipping solution that two-bath gum dipping dipping uses,
The mass content of each component be resorcinol 1%~3%, formaldehyde 0.2%~2%, latex 25%~60%, sodium hydroxide 0.03%~
0.05%, ammonium hydroxide 1%~5%, anti-hydrolysis agent 0.1%~1%, remaining is water, each group subtotaling 100%；The anti-hydrolysis agent is carbonization
The anti-hydrolysis agent of diimine class.
2. the preparation method of cord fabric warp thread dipping solution described in claim 1, which comprises the following steps:
(1) sodium hydroxide, resorcinol, formaldehyde are sequentially added and prepares solution in water；If system pH is not in 8~12 ranges
It is interior, liquid, which is adjusted, with NaOH adjusts；
(2) it is stirred to react 2-8h at 20~40 DEG C, obtains phenol resin solution；
(3) then latex is uniformly mixed to obtain dipping solution with phenol resin solution；
(4) ammonium hydroxide is added, is stirred to react 2~8h at 20~40 DEG C；
(5) it is eventually adding anti-hydrolysis agent, is mixed.
3. a kind of preparation method of cord fabric warp thread, it is characterised in that: including gum dipping process process；In gum dipping process process, the
The dipping solution that two-bath gum dipping dipping uses is cord fabric warp thread dipping solution described in claim 1.
4. the preparation method of cord fabric warp thread according to claim 3, it is characterised in that: the method for two-bath gum dipping dipping
After impregnation 10s-60s at room temperature, then at a temperature of 120-240 DEG C dry 1-10min.
5. the preparation method of cord fabric warp thread according to claim 3, which comprises the following steps:
(1) spinning technique process: slice → drying → Screw Extrusion → melt distribution pipe → spinning manifold → filament spinning component → slow
Cooler → ring wind quenching → oils → drawing-off → winding, obtains precursor；
Its technological parameter are as follows: spinning speed: 4800-5200 mpm；Draw ratio: 1.65-1.85；Annealer temperature: 230-360
℃；Inherent viscosity: 0.98-1.06 g/dl；
(2) it gum dipping process process: leads out → preceding storage cloth holder → first bath impregnation dipping → and aspirates the drying → drawing of the → the first area for the first time
The → the two-bath gum dipping dipping → secondary suction the → the second area drying → sizing → breaking knife → storing up cloth holder afterwards → is stretched to batch；It is washed
Synthetic fibre cord fabric thread；
Its technological parameter are as follows: first 160 DEG C of area's drying temperature and dry tension 850-1200 g；235 DEG C of draft temperature and stretching
Tension 1250-1800 g, second 160 DEG C of area's drying temperature and dry tension 850-1200g, 235 DEG C of setting temperature and sizing
Power 1350-1700g.
6. the preparation method of cord fabric warp thread according to claim 3, which is characterized in that in gum dipping process process, first
Bathe the impregnation formula of liquid that impregnation dipping uses are as follows: each component mass content is sodium hydroxide 0.003%~0.005%, sorbierite contracting
Water glycerin ether 0.1%~1%, polyfunctional group glycidol ether 0.5%~2%, caprolactam blocked isocyanate 2%~8%.
7. the preparation method of cord fabric warp thread according to claim 6, it is characterised in that: first bath impregnation dipping uses
The preparation method of dipping solution is to close sodium hydroxide, sorbierite glycidol ether, polyfunctional group glycidol ether, caprolactam
Isocyanates, which sequentially adds in water, to be dispersed, and is stirred to react 2~8h at 20~40 DEG C.
8. cord fabric warp thread obtained by the described in any item preparation methods of claim 3-7.
9. application of the cord fabric warp thread according to any one of claims 8 in riding and light truck radial tyre.
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| CN109252372A (en) * | 2018-08-30 | 2019-01-22 | 芜湖华烨工业用布有限公司 | The dipping solution and preparation method thereof of one-bath process production impregnation polyester canvas |
| CN111395001B (en) * | 2020-03-30 | 2023-06-16 | 联新（开平）高性能纤维有限公司 | Conductive dipping liquid and preparation method and application thereof, dipping cord and preparation method and application thereof |
| CN112281272A (en) * | 2020-10-15 | 2021-01-29 | 联新（开平）高性能纤维有限公司 | Polyester cord fabric warp with ultrahigh strength and dimensional stability as well as preparation method and application thereof |
| CN112442816A (en) * | 2020-11-26 | 2021-03-05 | 浙江尤夫高新纤维股份有限公司 | Heat setting method for high-strength hard wire rope impregnation process |
| CN113400684A (en) * | 2021-05-17 | 2021-09-17 | 浙江海利得新材料股份有限公司 | Preparation method of gum dipping cord fabric for passenger radial tire |
| CN114293381A (en) * | 2022-01-07 | 2022-04-08 | 嘉兴博蕾新材料有限公司 | Tire skeleton cord fabric rubber dipping process |
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| US4448813A (en) * | 1982-09-20 | 1984-05-15 | The B. F. Goodrich Company | Preparation of cord for bonding to rubber |
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| CN102634986B (en) * | 2012-04-20 | 2013-08-21 | 北京化工大学 | Method for pretreating fibers |
| CN105177788B (en) * | 2015-10-20 | 2017-08-22 | 联新（开平）高性能纤维有限公司 | A kind of terylene tyre cord, its preparation method and its application in cross-ply |
| CN105937185B (en) * | 2016-06-14 | 2017-05-10 | 平顶山神马帘子布发展有限公司 | Method for improving initial adhesive force of nylon 66 dipped tyre cord fabric |
| CN106084362B (en) * | 2016-06-28 | 2018-04-24 | 江苏太极实业新材料有限公司 | A kind of environmentally friendly fibre framework materials dipping solution and gum dipping process |
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| US4448813A (en) * | 1982-09-20 | 1984-05-15 | The B. F. Goodrich Company | Preparation of cord for bonding to rubber |
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