CN103320903B - A kind of High-temperature-reslatext latext yarn - Google Patents
A kind of High-temperature-reslatext latext yarn Download PDFInfo
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Abstract
The present invention proposes a kind of High-temperature-reslatext latext yarn.The present invention protects a kind of for the production of the cumyl peroxide dispersion of rubber latex thread and the preparation method of this dispersion, a kind of preparation method of rubber latex thread, also protect a kind of come the preparation method of high temperature rubber latex thread and High-temperature-reslatext latext yarn.The present invention effectively can improve the heat-resisting ability of circular tape latex yarn, makes circular tape latex yarn can keep certain elastic force under the condition of 200 DEG C, for some particular surroundings, this requires that rubber latex thread must have resistant to elevated temperatures ability and seem particularly important.The method convenient operation simultaneously.Make the demand that High-temperature-reslatext latext yarn can supply daily life, some specific demand colonies can be met simultaneously, so just can realize practical value and the economic worth of rubber latex thread better.
Description
Technical field
The present invention relates to latex field, be specifically related to a kind of High-temperature-reslatext latext yarn.
Background technology
At present, existing typical circular is also with rubber latex thread at temperature more than 160 DEG C just lost its bounce, this is because vulcanized rubber in the case of a high temperature, there is heat ageing, because relaxation sharply slows down, in hardness, modulus and molecule, friction increases, and elasticity significantly reduces, the ability to work of rubber is caused to decline, particularly particularly outstanding in a dynamic condition.Circular tape latex yarn R&D and production that is existing and that once had all did fruitful effort to resistant to elevated temperatures rubber latex thread, but effect is all not obvious.
Therefore, the resistant to elevated temperatures rubber latex thread of a kind of energy is badly in need of.
Summary of the invention
The object of the present invention is to provide the resistant to elevated temperatures rubber latex thread of a kind of energy.
For achieving the above object, the invention provides a kind of cumyl peroxide dispersion for the preparation of High-temperature-reslatext latext yarn, it is characterized in that, comprise following composition, pure water 36.63-36.83 percentage by weight %, dispersant 1.32-1.52 percentage by weight %, bentonite 0.10-0.30 percentage by weight %, ammoniacal liquor 0.68-0.88 percentage by weight %, cumyl peroxide 60.77-60.97 percentage by weight %.
Described dispersant is No. 7, dispersant; Concentration >=25% of ammoniacal liquor.
The preparation method of described cumyl peroxide dispersion, it is characterized in that, comprise the steps, pure water, dispersant, bentonite, ammoniacal liquor, cumyl peroxide are joined in stainless steel scuffing of cylinder bore respectively according to sequencing and stirs 1 hour with hydraulic lifting high speed dispersor with the speed of 50 revs/min; Then after grinding with the grinding flow of 4KG/ minute with hydraulic lifting basket-type grinder.
The present invention also protects a kind of preparation method of rubber latex thread, it is characterized in that, comprise by described cumyl peroxide dispersion or described in the cumyl peroxide dispersion for preparing join step in the middle of 100 parts by weight of latex with the parts by weight of 2-6 part.Rubber latex thread the present invention that the present invention also protects this method to prepare also protects a kind of preparation method of High-temperature-reslatext latext yarn, it is characterized in that, comprise the steps: that batch mixing stirs: by a certain amount of stabilizing agent, promoter, vulcanizing agent, age resistor and described rubber latex thread put into the iron flask scribbling antirust coat, after 2 hours 50 revs/min of high-speed stirred, cool froth breaking and obtain sizing material after utilizing high pressure homogenizer homogeneous;
Extrusion molding: be that 1.80cm glass tube is expressed into acid tank by diameter by above-mentioned steps gained sizing material, what put in acid tank is acetic acid, and this acid tank concentration is controlled, 30%, to obtain circular tape latex yarn;
Tank is washed: by 4 tanks by described circular tape latex yarn disacidify, the temperature of each tank controls 70 DEG C;
Dry removal moisture content: by the drying box of the circular tape latex yarn of gained disacidify by being about 30 meters, drying box temperature controls at 120 DEG C;
Vulcanization crosslinking: by the curing cage of dry circular tape latex yarn by being about 30 meters of gained, curing cage temperature controls at 130 DEG C;
Fall case: fall case packing.
Described stabilizing agent is potassium hydroxide;
Optionally, described promoter is 2-thiol benzothiazole zinc salt and zinc dibutyl dithiocarbamate;
Optionally, described vulcanizing agent is sulphur;
Optionally, described age resistor is IONOLLC, the product of paracresol and the reaction of dicyclopentadiene butylation,
Its No. CAS is 68610-51-5.
The parts by weight of described stabilizing agent are 0.6-0.9, and promoter is the 2-thiol benzothiazole zinc salt of 1 weight portion and the zinc dibutyl dithiocarbamate of 0.5 weight portion; Vulcanizing agent is the sulphur of 1.3 weight portions; The IONOLLC of 1.5 weight portions; The rubber latex thread according to claim 6 of 102-106 weight portion.
The High-temperature-reslatext latext yarn of the band fragrance that the present invention also protects described preparation method to obtain.
Cumyl peroxide is that in organic peroxide, cross-linking efficiency is best, cumyl peroxide is introduced rubber latex thread vulcanizing system and will greatly improve the heat resistance of latex product undoubtedly.Cumyl peroxide (dicumylperoxide) is also known as vulcanizing agent DCP, peroxidating two cumin.Molecular formula C18H22O2, relative molecular mass 270.37.Structural formula is:
White crystals.Fusing point 41 ~ 42 DEG C.Relative density 1.082.Decomposition temperature 120 ~ 125 DEG C.Room-temperature stable, is shown in that light becomes micro-yellow gradually.Water insoluble, be dissolved in ethanol, ether, acetic acid, benzene and benzinum.Active o content 5.92% (purity 100%), 5.62% (purity 95%).Be dissolved in the half-life in benzene: 171 DEG C: 1min; 117 DEG C: 10h; 101 DEG C: 100h.It is a kind of strong oxidizer.
First first cumyl peroxide must be made dispersion, this dispersion main component is dispersant, PH conditioning agent, and main body cumyl peroxide forms, and the formula of this dispersion is as follows:
After making dispersion, join in Heveatex with the parts by weight of 2-6 part, through presulfurization, cooling froth breaking, extrusion molding, pickling is washed, obtained resistant to elevated temperatures rubber latex thread after dry sulfuration.
The content of described dispersant, bentonite and cumyl peroxide all requires >=99%.Content >=25% of ammoniacal liquor.
The preparation method of cumyl peroxide dispersion, is characterized in that, comprises the steps,
Pure water, dispersant, bentonite, ammoniacal liquor, cumyl peroxide are joined stainless steel scuffing of cylinder bore (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai according to sequencing, model: GDT20) in stir 1 hour with hydraulic lifting high speed dispersor (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GHD-1.5) with the speed of 50 revs/min.Then use hydraulic lifting basket-type grinder (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GBM-4) can use after the grinding flow of 4KG/ minute grinding.
Cumyl peroxide is that in organic peroxide, cross-linking efficiency is best, cumyl peroxide is introduced rubber latex thread vulcanizing system and will greatly improve the heat resistance of latex product undoubtedly.But itself and Heveatex can not fuse very well, the present inventor is through test of many times, cumyl peroxide is found to obtain dispersion, just can realize fusing very well with Heveatex, be introduced into circular tape latex yarn vulcanizing system, fundamentally improve the heat-resisting quantity of circular tape latex yarn.
Concrete technology is as follows:
1. batch mixing stirs: by stabilizing agent (potassium hydroxide, the parts by weight of 0.6-0.9), promoter (MZ:2-thiol benzothiazole zinc salt, the parts by weight of 1.And BZ: zinc dibutyl dithiocarbamate, the parts by weight of 0.5), vulcanizing agent (sulphur, the parts by weight of 1.3), age resistor (IONOLLC chemical descriptor: the product of paracresol and the reaction of dicyclopentadiene butylation.No. CAS: 68610-51-5 registration: EINECS, TSCA, No. MITIHS: 29072990, the parts by weight of 1.5, be purchased from Chinese Medicine Foreign Trade Company) with cumyl peroxide dispersion joined the latex (described cumyl peroxide dispersion being joined in the latex of 100 weight portions) gained in latex with the parts by weight of 2-6 part put into the iron flask scribbling antirust coat, 50 revs/min of high-speed stirred after 2 hours, cool froth breaking after utilizing high pressure homogenizer (Shanghai is merged machinery Co., Ltd and produced) homogeneous and obtain sizing material.
2. extrusion molding: be that 1.80cm glass tube is expressed into acid tank by diameter by described sizing material, what put in acid tank is acetic acid, and this acid tank concentration is controlled, 30%, to obtain circular tape latex yarn.
3. tank washing: by 4 tanks by described circular tape latex yarn disacidify, the temperature of each tank controls 70 DEG C.
4. dry removal moisture content: by the drying box of circular tape latex yarn by being about 30 meters of step 3 gained disacidify, drying box temperature controls at 120 DEG C.
5. vulcanization crosslinking: by the curing cage of dry circular tape latex yarn by being about 30 meters of step 4 gained, curing cage temperature controls at 130 DEG C.
6. fall case: fall case packing.
The present invention effectively can improve the heat-resisting ability of circular tape latex yarn, makes circular tape latex yarn can keep certain elastic force under the condition of 200 DEG C, for some particular surroundings, this requires that rubber latex thread must have resistant to elevated temperatures ability and seem particularly important.Typical circular to produce vulcanizing agent used with rubber latex thread be all single sulphur, and the formula Design of heat resistant rubber goods need to select to produce bond energy high, chemically stable vulcanizing system.The bond energy of cross-bond is larger, and the heat resistance of vulcanizate is better.The production major part of circular tape latex yarn is that raw material are produced with natural emulsion, and organic peroxide is used for sulfuration effectively can improve cross-bond C-C key bond energy containing the natural rubber of unsaturated double-bond, and then improves the heat resistance of rubber latex thread.
The method convenient operation, utilizes the basic equipment of rubber latex thread production plant, reaches and makes circular tape latex yarn sizing material heat-resisting effect obvious, thus can produce High-temperature-reslatext latext yarn by adding certain special vulcanizing agent.Make High-temperature-reslatext latext yarn in order to supply the demand of daily life, some specific demand colonies can be met simultaneously, so just can realize practical value and the economic worth of circular tape latex yarn better.
At the circular tape latex yarn that the present invention obtains by the present inventor at normal temperatures with 200 DEG C, physical parameter compares, and sees the table 1 of embodiment.Data as can be seen from table 1, introduce rubber latex thread vulcanizing system by cumyl peroxide, the physical behavior of obtained circular tape latex yarn at 200 DEG C and the difference under normal temperature not quite, effectively can improve the heat-resisting quantity of rubber latex thread.
Detailed description of the invention
Embodiment described below is exemplary, is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.Unreceipted concrete technology or condition person in embodiment, according to the technology described by the document in this area or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being can by the conventional products of commercial acquisition.
Embodiment 1: the preparation of High-temperature-reslatext latext yarn
The formula of cumyl peroxide dispersion is as follows:
The preparation method of cumyl peroxide dispersion is: pure water, dispersant, bentonite, ammoniacal liquor, cumyl peroxide are joined stainless steel scuffing of cylinder bore (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai according to sequencing, model: GDT20) in stir 1 hour with hydraulic lifting high speed dispersor (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GHD-1.5) with the speed of 50 revs/min.Then use hydraulic lifting basket-type grinder (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GBM-4) with after the grinding flow of 4KG/ minute grinding.
By this cumyl peroxide dispersion with 2 parts by weight join in the middle of the latex (production of Hainan caoutchouc industry Group Plc) of 100 parts of weight portions.
Preparation technology:
Batch mixing stirs: by stabilizing agent (potassium hydroxide, the parts by weight of 0.6), promoter (MZ:2-thiol benzothiazole zinc salt, the parts by weight of 1 and BZ: zinc dibutyl dithiocarbamate, the parts by weight of 0.5), vulcanizing agent (sulphur, the parts by weight of 1.3), age resistor (IONOLLC chemical descriptor: the product of paracresol and the reaction of dicyclopentadiene butylation.No. CAS: 68610-51-5 registration: EINECS, TSCA, No. MITIHS: 29072990, the parts by weight of 1.5, be purchased from Chinese Medicine Foreign Trade Company) with cumyl peroxide dispersion to be joined in latex (by described cumyl peroxide dispersion with 2 parts by weight join the latex of 100 weight portions) the batch mixing 102 weight portion (compound of compounding ingredient and Heveatex of gained, production can be directly used in) put into the iron flask scribbling antirust coat, 50 revs/min of high-speed stirred after 2 hours, cool froth breaking after utilizing high pressure homogenizer (Shanghai is merged machinery Co., Ltd and produced) homogeneous and obtain sizing material.
Extrusion molding: be that 1.80cm glass tube is expressed into acid tank by diameter by described sizing material, what put in acid tank is acetic acid, and this acid tank concentration is controlled, 30%, to obtain circular tape latex yarn.
Tank is washed: by 4 tanks by described circular tape latex yarn disacidify, the temperature of each tank controls 70 DEG C.
Dry removal moisture content: by the drying box of circular tape latex yarn by being about 30 meters of step 3 gained disacidify, drying box temperature controls at 120 DEG C.
Vulcanization crosslinking: by the curing cage of dry circular tape latex yarn by being about 30 meters of step 4 gained, curing cage temperature controls at 130 DEG C.
Fall case: fall case packing.
Embodiment 2: the preparation of High-temperature-reslatext latext yarn
The formula of cumyl peroxide dispersion is as follows:
The preparation method of cumyl peroxide dispersion is: pure water, dispersant, bentonite, ammoniacal liquor, cumyl peroxide are joined stainless steel scuffing of cylinder bore (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai according to sequencing, model: GDT20) in stir 1 hour with hydraulic lifting high speed dispersor (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GHD-1.5) with the speed of 50 revs/min.Then use hydraulic lifting basket-type grinder (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GBM-4) with after the grinding flow of 4KG/ minute grinding.
By this cumyl peroxide dispersion with 6 parts by weight join in the middle of the latex (production of Hainan caoutchouc industry Group Plc) of 100 parts of weight portions.
Preparation technology:
Batch mixing stirs: by stabilizing agent (potassium hydroxide, the parts by weight of 0.9), promoter (MZ:2-thiol benzothiazole zinc salt, the parts by weight of 1 and BZ: zinc dibutyl dithiocarbamate, the parts by weight of 0.5), vulcanizing agent (sulphur, the parts by weight of 1.3), age resistor (IONOLLC chemical descriptor: the product of paracresol and the reaction of dicyclopentadiene butylation.No. CAS: 68610-51-5 registration: EINECS, TSCA, No. MITIHS: 29072990, the parts by weight of 1.5, be purchased from Chinese Medicine Foreign Trade Company) with cumyl peroxide dispersion to be joined in latex (by described cumyl peroxide dispersion with 6 parts by weight join the latex of 100 weight portions) 106 weight portion batch mixing (compounds of compounding ingredient and Heveatex of gained, production can be directly used in) put into the iron flask scribbling antirust coat, 50 revs/min of high-speed stirred after 2 hours, cool froth breaking after utilizing high pressure homogenizer (Shanghai is merged machinery Co., Ltd and produced) homogeneous and obtain sizing material.
Extrusion molding: be that 1.80cm glass tube is expressed into acid tank by diameter by described sizing material, what put in acid tank is acetic acid, and this acid tank concentration is controlled, 30%, to obtain circular tape latex yarn.
Tank is washed: by 4 tanks by described circular tape latex yarn disacidify, the temperature of each tank controls 70 DEG C.
Dry removal moisture content: by the drying box of circular tape latex yarn by being about 30 meters of step 3 gained disacidify, drying box temperature controls at 120 DEG C.
Vulcanization crosslinking: by the curing cage of dry circular tape latex yarn by being about 30 meters of step 4 gained, curing cage temperature controls at 130 DEG C.
Fall case: fall case packing.
Embodiment 3: the preparation of High-temperature-reslatext latext yarn
The formula of cumyl peroxide dispersion is as follows:
The preparation method of cumyl peroxide dispersion is: pure water, dispersant, bentonite, ammoniacal liquor, cumyl peroxide are joined stainless steel scuffing of cylinder bore (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai according to sequencing, model: GDT20) in stir 1 hour with hydraulic lifting high speed dispersor (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GHD-1.5) with the speed of 50 revs/min.Then use hydraulic lifting basket-type grinder (manufacturer: speed Xiang new forms of energy equipment Science and Technology Ltd. in Shanghai, model: GBM-4) with after the grinding flow of 4KG/ minute grinding.
By this cumyl peroxide dispersion with 4 parts by weight join in the middle of the latex (production of Hainan caoutchouc industry Group Plc) of 100 parts of weight portions.
Preparation technology:
Batch mixing stirs: by stabilizing agent (potassium hydroxide, the parts by weight of 0.9), promoter (MZ:2-thiol benzothiazole zinc salt, the parts by weight of 1 and BZ: zinc dibutyl dithiocarbamate, the parts by weight of 0.5), vulcanizing agent (sulphur, the parts by weight of 1.3), age resistor (IONOLLC chemical descriptor: the product of paracresol and the reaction of dicyclopentadiene butylation.No. CAS: 68610-51-5 registration: EINECS, TSCA, No. MITIHS: 29072990, the parts by weight of 1.5, be purchased from Chinese Medicine Foreign Trade Company) with cumyl peroxide dispersion to be joined in latex (by described cumyl peroxide dispersion with 4 parts by weight join the latex of 100 weight portions) 104 weight portion batch mixing (compounds of compounding ingredient and Heveatex of gained, production can be directly used in) put into the iron flask scribbling antirust coat, 50 revs/min of high-speed stirred after 2 hours, cool froth breaking after utilizing high pressure homogenizer (Shanghai is merged machinery Co., Ltd and produced) homogeneous and obtain sizing material.
Extrusion molding: be that 1.80cm glass tube is expressed into acid tank by diameter by described sizing material, what put in acid tank is acetic acid, and this acid tank concentration is controlled, 30%, to obtain circular tape latex yarn.
Tank is washed: by 4 tanks by described circular tape latex yarn disacidify, the temperature of each tank controls 70 DEG C.
Dry removal moisture content: by the drying box of circular tape latex yarn by being about 30 meters of step 3 gained disacidify, drying box temperature controls at 120 DEG C.
Vulcanization crosslinking: by the curing cage of dry circular tape latex yarn by being about 30 meters of step 4 gained, curing cage temperature controls at 130 DEG C.
Fall case: fall case packing.
Embodiment 4: effect detection is tested
Detection method refers to HG/T2487-2011, and standard refers to HG/T2889-2011
Testing result is in table 1
Table 1: physical parameter comparison sheet at the circular tape latex yarn that the present invention obtains at normal temperatures with 200 DEG C
As can be seen from Table 1, circular tape latex yarn of the present invention still can keep and almost close physical property under normal temperature at 200 DEG C, illustrates that circular tape latex yarn of the present invention has resistant to elevated temperatures effect.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (8)
1. a preparation method for High-temperature-reslatext latext yarn, is characterized in that, comprises the steps:
Batch mixing stirs: by a certain amount of stabilizing agent, promoter, vulcanizing agent, and the iron flask scribbling antirust coat put into by age resistor and batch mixing, after 2 hours 50 revs/min of high-speed stirred, cools froth breaking and obtain sizing material after utilizing high pressure homogenizer homogeneous; Described batch mixing is for joining with the parts by weight of 2-6 part the material that 100 parts by weight of latex obtain by cumyl peroxide dispersion; Described cumyl peroxide dispersion comprises following composition, pure water 36.63-36.83 percentage by weight %, dispersant 1.32-1.52 percentage by weight %, bentonite 0.10-0.30 percentage by weight %, ammoniacal liquor 0.68-0.88 percentage by weight %, cumyl peroxide 60.77-60.97 percentage by weight %;
Extrusion molding: be that 1.80cm glass tube is expressed into acid tank by diameter by above-mentioned steps gained sizing material, what put in acid tank is acetic acid, and this acid tank concentration is controlled, 30%, to obtain circular tape latex yarn;
Tank is washed: by 4 tanks by described circular tape latex yarn disacidify, the temperature of each tank controls 70 DEG C;
Dry removal moisture content: by the drying box of the circular tape latex yarn of gained disacidify by long 30 meters, drying box temperature controls at 120 DEG C;
Vulcanization crosslinking: by the curing cage of the dry circular tape latex yarn of gained by long 30 meters, curing cage temperature controls at 130 DEG C;
Fall case: fall case packing.
2. the preparation method of the High-temperature-reslatext latext yarn of claim 1, is characterized in that, described stabilizing agent is potassium hydroxide.
3. the preparation method of the High-temperature-reslatext latext yarn of claim 1, is characterized in that, described promoter is 2-thiol benzothiazole zinc salt and zinc dibutyl dithiocarbamate.
4. the preparation method of the High-temperature-reslatext latext yarn of claim 1, is characterized in that, described vulcanizing agent is sulphur.
5. the preparation method of the High-temperature-reslatext latext yarn of claim 1, is characterized in that, described age resistor is IONOLLC, and the product of paracresol and the reaction of dicyclopentadiene butylation, its No. CAS is 68610-51-5.
6. the preparation method of the arbitrary described High-temperature-reslatext latext yarn of claim 1-5, it is characterized in that, the parts by weight of described stabilizing agent are 0.6-0.9, and promoter is the 2-thiol benzothiazole zinc salt of 1 weight portion and the zinc dibutyl dithiocarbamate of 0.5 weight portion; Vulcanizing agent is the sulphur of 1.3 weight portions; The IONOLLC of 1.5 weight portions; 102-106 weight portion cumyl peroxide dispersion is joined with the parts by weight of 2-6 part the material that 100 parts by weight of latex obtain.
7. the High-temperature-reslatext latext yarn that obtains of the arbitrary preparation method of claim 1-5.
8. the High-temperature-reslatext latext yarn that obtains of the preparation method of the High-temperature-reslatext latext yarn of claim 6.
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