CN103319630A - Low-temperature-resistant latex yarn - Google Patents
Low-temperature-resistant latex yarn Download PDFInfo
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- CN103319630A CN103319630A CN2013102438054A CN201310243805A CN103319630A CN 103319630 A CN103319630 A CN 103319630A CN 2013102438054 A CN2013102438054 A CN 2013102438054A CN 201310243805 A CN201310243805 A CN 201310243805A CN 103319630 A CN103319630 A CN 103319630A
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Abstract
The invention provides a low-temperature-resistant latex yarn. The preparation method comprises the following steps: adding strong alkali and composite plant ester to carry out saponification reaction, adding the obtained product into a latex to obtain a treated latex, and preparing the treated latex into the low-temperature-resistant latex yarn according to common latex yarn preparation steps. The invention can effectively enhance the cold resistance of the low-temperature-resistant latex yarn, so that the latex yarn can still have certain elasticity at -50 DEG C, which is very important when some particular environments require ultralow temperature resistance of the latex yarn. Meanwhile, the method is convenient to operate. The ultralow-temperature-resistant latex yarn can satisfy the demands of daily life, and can also satisfy some people with special demands, thereby better implementing practical value and economic value of the latex yarn.
Description
Technical field
The present invention relates to the latex field, be specifically related to a kind of low temperature resistant rubber latex thread.
Background technology
Existing circular and be with rubber latex thread at just lost its bounce below-20 ℃, this is because of vulcanized rubber at low temperatures, because relaxation sharply slows down, hardness, modulus and molecule internal friction increase, elasticity significantly reduces, cause the work capacity of rubber item to descend, particularly particularly outstanding under dynamic condition.Have now with the circle that once had and with the rubber latex thread R﹠D and production rubber latex thread of anti-very low temperature was all done fruitful effort, but the result is undesirable.
Therefore, be badly in need of the low temperature resistant rubber latex thread of a kind of energy.
Summary of the invention
The object of the present invention is to provide a kind of rubber latex thread of ability very low temperature.
For achieving the above object, a kind of latex treatment process is characterized in that, comprises the steps:
Emulsification: add highly basic and composite plant ester, make it to occur saponification reaction;
Sizing material: emulsion reaction is able to 0.75 weight part joins latex after obtaining processing in the 100 weight part latex.
Described highly basic is potassium hydroxide.
Described join in the 100 weight part latex for join 100 weight part natural rubber latexes or process after latex in.
The present invention also protects a kind of low temperature resistant rubber latex thread, comprises the latex that uses after the described processing that obtains.
The present invention also protects a kind of preparation method of low temperature resistant rubber latex thread, it is characterized in that, comprise the steps,
Batch mixing stirs: with a certain amount of stablizer, promotor, vulcanizing agent, the latex of anti-aging agent after resulting processing is put into the iron flask that scribbles rustproof layer, 50 rev/mins of high-speed stirring after 2 hours, utilize the high pressure homogenizer homogeneous after the cooling froth breaking obtain sizing material;
Extrusion molding: be that the 1.80cm Glass tubing is expressed into acid tank with above-mentioned steps gained sizing material by diameter, what put in the acid tank is acetic acid, and this acid tank concentration is controlled at 30%, obtains circle and is with rubber latex thread;
Tank washing: by 4 tanks with described circle and be with the rubber latex thread disacidify, 70 ℃ of the temperature controls of each tank;
The dry moisture content of removing: with the circular of gained disacidify and with rubber latex thread by being about 30 meters loft drier, the loft drier temperature is controlled at 120 ℃;
Vulcanization crosslinking: with the dry circular of gained and with rubber latex thread by being about 30 meters curing cage, the curing cage temperature is controlled at 130 ℃;
Case falls: case packing falls.
Randomly, described stablizer is potassium hydroxide;
Randomly, described promotor is 2-thiol benzothiazole zinc salt and zinc dibutyl dithiocarbamate;
Randomly, described vulcanizing agent is sulphur;
Randomly, described anti-aging agent is IONOL LC, the product of p-cresol and the reaction of dicyclopentadiene butylation, and its CAS number is 68610-51-5.
The parts by weight of described stablizer are 0.6-0.9, and promotor is the 2-thiol benzothiazole zinc salt of 1 weight part and the zinc dibutyl dithiocarbamate of 0.5 weight part; Vulcanizing agent is the sulphur of 1.3 weight parts; 1.5 the IONOL LC of weight part; 100.75 the latex after the processing of weight part
Composite plant ester (vehicle economy DB, code name 8611 ester plasticizers) is carried out the GB-11406-89 standard, molecular formula (C6H5COOCH2CH2CO2), molecular weight 314 is the colorless and odorless transparent liquid, contain benzene ring structure in the DEDB molecular chain, make its molecular weight increase molecular polarity and increase, good with the intermiscibility such as PVC Vinyl Acetate Copolymer, have a plasticizing efficiency high, anti-pollution and resistance to persistence are good, its oil-proofness, the extractable of anti-the solvent are good, and tensile strength is 20MPa after tested, elongation at break 25%.Composite plant fat is a kind of novel environment friendly softening agent, is to extract in various plants, a kind of novel environment friendly non-toxic plasticizer that esterification generates under the effect of a series of catalyzer.Because this material is lipid, and is water insoluble, is dissolved in ethanol, ether, the most of organic solvents of mineral wet goods.
Composite plant fat can not be well and latex directly fused, the present inventor studies discovery, composite plant fat can fuse better with latex through Over emulsfication after makes rubber latex thread.Saponification reaction for to occur with it with highly basic in concrete emulsification method, and concrete reaction formula is:
C6H5COOCH2CH2CO2 +KOH === C6H5COOK + CH2CH2CO2OH
C6H5 and CH2CH2CO2 are molecular radical
By emulsification, composite plant fat can be effectively and natural rubber latex fused.
The mass fraction that this composite plant fat adds in the latex is 0.75, and the anti-very low temperature performance of gained sizing material is best, can make the rubber latex thread of anti-very low temperature with the latex after this processing according to general technology.
Concrete technology is as follows:
Batch mixing stirs: with a certain amount of stablizer, promotor, vulcanizing agent, the latex of anti-aging agent after processing is put into the iron flask that scribbles rustproof layer, 50 rev/mins of high-speed stirring after 2 hours, utilize the high pressure homogenizer homogeneous after the cooling froth breaking obtain sizing material;
Extrusion molding: be that the 1.80cm Glass tubing is expressed into acid tank with above-mentioned steps gained sizing material by diameter, what put in the acid tank is acetic acid, and this acid tank concentration is controlled at 30%, obtains circle and is with rubber latex thread;
Tank washing: by 4 tanks with described circle and be with the rubber latex thread disacidify, 70 ℃ of the temperature controls of each tank;
The dry moisture content of removing: with the circular of gained disacidify and with rubber latex thread by being about 30 meters loft drier, the loft drier temperature is controlled at 120 ℃;
Vulcanization crosslinking: with the dry circular of gained and with rubber latex thread by being about 30 meters curing cage, the curing cage temperature is controlled at 130 ℃;
Case falls: case packing falls.
Described stablizer is potassium hydroxide; The parts by weight of described stablizer are 0.6-0.9;
Randomly, described promotor is 2-thiol benzothiazole zinc salt and zinc dibutyl dithiocarbamate; Be specially the 2-thiol benzothiazole zinc salt of 1 weight part and the zinc dibutyl dithiocarbamate of 0.5 weight part;
Randomly, described vulcanizing agent is sulphur; Vulcanizing agent is the sulphur of 1.3 weight parts;
Randomly, described anti-aging agent is IONOL LC, the product of p-cresol and the reaction of dicyclopentadiene butylation, and its CAS number is 68610-51-5.Be specially the IONOL LC of 1.5 weight parts.
100.75 the latex after the processing of weight part, namely the highly basic of 0.75 weight part and composite plant ester emulsion reaction gained join gained in the latex after 100 weight part natural rubber latexes (production of Hainan caoutchouc industry Group Plc) obtain processing.
The winter hardiness of rubber latex thread energy Effective Raise rubber latex thread of the present invention can make it also can keep certain elastic force at-50 ℃, and this seems particularly important for the ability that some particular surroundingss require rubber latex threads must have anti-very low temperature.
The method convenient operation utilizes the basic equipment of rubber latex thread production plant, reaches the effect that the second-order transition temperature of producing the rubber latex thread sizing material is risen by adding certain softening agent, thereby can produce the rubber latex thread of anti-very low temperature.Make the rubber latex thread of anti-very low temperature in order to supplying the demand of daily life, can satisfy some specific demand colonies simultaneously, so just can realize better circle and with practical value and the economic worth of rubber latex thread.
Embodiment
The embodiment that the following describes is exemplary, is intended to for explanation the present invention, and can not be interpreted as limitation of the present invention.Unreceipted concrete technology or condition person among the embodiment carry out according to the described technology of the document in this area or condition or according to product description.The unreceipted person of production firm of agents useful for same or instrument, being can be by the conventional products of commercial acquisition.
Embodiment 1: the preparation of low temperature resistant rubber latex thread
Emulsification: add 1 weight part potassium hydroxide and 1 weight part composite plant ester, make it to occur saponification reaction;
Sizing material: emulsion reaction gained emulsified body is joined batch mixing (can be directly used in production) after obtaining processing in the 100 weight part natural rubber latexes (production of Hainan caoutchouc industry Group Plc) with 0.75 weight part.
Processing step:
Batch mixing stirs: with stablizer (potassium hydroxide, 0.6 parts by weight), promotor (MZ:2-thiol benzothiazole zinc salt, 1 parts by weight and BZ: zinc dibutyl dithiocarbamate, 0.5 parts by weight), vulcanizing agent (sulphur, 1.3 parts by weight), anti-aging agent (IONOL LC chemical descriptor: the product of p-cresol and the reaction of dicyclopentadiene butylation.CAS number: 68610-51-5 registration: EINECS, TSCA, MITI HS number: 2,907 2990,1.5 parts by weight, being purchased from Chinese Medicine Foreign Trade Company) batch mixing (can be directly used in production) after the processing of 100.75 weight parts puts into the iron flask that scribbles rustproof layer, 50 rev/mins of high-speed stirring after 2 hours, utilize the high pressure homogenizer homogeneous after the cooling froth breaking obtain sizing material;
Extrusion molding: be that the 1.80cm Glass tubing is expressed into acid tank with above-mentioned steps gained sizing material by diameter, what put in the acid tank is acetic acid, and this acid tank concentration is controlled at 30%, obtains circle and is with rubber latex thread;
Tank washing: by 4 tanks with described circle and be with the rubber latex thread disacidify, 70 ℃ of the temperature controls of each tank;
The dry moisture content of removing: with the circular of gained disacidify and with rubber latex thread by being about 30 meters loft drier, the loft drier temperature is controlled at 120 ℃;
Vulcanization crosslinking: with the dry circular of gained and with rubber latex thread by being about 30 meters curing cage, the curing cage temperature is controlled at 130 ℃;
Case falls: case packing falls.
Embodiment 2: the preparation of low temperature resistant rubber latex thread
Emulsification: add 1 weight part potassium hydroxide and 1 weight part composite plant ester, make it to occur saponification reaction;
Sizing material: emulsion reaction gained emulsified body is joined batch mixing (can be directly used in production) after obtaining processing in the 100 weight part natural rubber latexes (production of Hainan caoutchouc industry Group Plc) with 0.75 weight part.
Processing step:
Batch mixing stirs: with stablizer (potassium hydroxide, 0.6 parts by weight), promotor (MZ:2-thiol benzothiazole zinc salt, 1 parts by weight and BZ: zinc dibutyl dithiocarbamate, 0.5 parts by weight), vulcanizing agent (sulphur, 1.3 parts by weight), anti-aging agent (IONOL LC chemical descriptor: the product of p-cresol and the reaction of dicyclopentadiene butylation.CAS number: 68610-51-5 registration: EINECS, TSCA, MITI HS number: 2,907 2990,1.5 parts by weight, be purchased from Chinese Medicine Foreign Trade Company) put into the iron flask that scribbles rustproof layer with the batch mixing (can be directly used in production) after the processing of 100.75 weight parts, 50 rev/mins of high-speed stirring after 2 hours, utilize the high pressure homogenizer homogeneous after the cooling froth breaking obtain sizing material;
Extrusion molding: be that the 1.80cm Glass tubing is expressed into acid tank with above-mentioned steps gained sizing material by diameter, what put in the acid tank is acetic acid, and this acid tank concentration is controlled at 30%, obtains circle and is with rubber latex thread;
Tank washing: by 4 tanks with described circle and be with the rubber latex thread disacidify, 70 ℃ of the temperature controls of each tank;
The dry moisture content of removing: with the circular of gained disacidify and with rubber latex thread by being about 30 meters loft drier, the loft drier temperature is controlled at 120 ℃;
Vulcanization crosslinking: with the dry circular of gained and with rubber latex thread by being about 30 meters curing cage, the curing cage temperature is controlled at 130 ℃;
Case falls: case packing falls.
Embodiment 3: the effect detection test
Detection method sees HG/T 2487-2011 for details, and standard sees HG/T 2889-2011 for details
Detected result sees Table 1
As can be seen from Table 1, circle of the present invention and with rubber latex thread-50 ℃ still can keep with normal temperature under close physicals almost, circle of the present invention is described and has the effect of anti-very low temperature with rubber latex thread.
Although the above has illustrated and has described embodiments of the invention, 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 is not in the situation that break away from principle of the present invention and aim can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (7)
1. a latex treatment process is characterized in that, comprises the steps:
Emulsification: add highly basic and composite plant ester, make it to occur saponification reaction;
Sizing material: emulsion reaction is able to 0.75 weight part joins latex after obtaining processing in the 100 weight part latex.
2. the latex treatment process of claim 1 is characterized in that, described highly basic is potassium hydroxide.
3. the latex treatment process of claim 1 is characterized in that, described join in the 100 weight part latex for join 100 weight part natural rubber latexes or process after latex in.
4. a low temperature resistant rubber latex thread comprises the latex after exercise of power requires the arbitrary described processing that obtains of 1-3.
5. the preparation method of the low temperature resistant rubber latex thread of claim 4 is characterized in that, comprise the steps,
Batch mixing stirs: with a certain amount of stablizer, promotor, vulcanizing agent, the latex of anti-aging agent after the resulting processing of claim 1-3 either method is put into the iron flask that scribbles rustproof layer, 50 rev/mins of high-speed stirring after 2 hours, utilize the high pressure homogenizer homogeneous after the cooling froth breaking obtain sizing material;
Extrusion molding: be that the 1.80cm Glass tubing is expressed into acid tank with above-mentioned steps gained sizing material by diameter, what put in the acid tank is acetic acid, and this acid tank concentration is controlled at 30%, obtains circle and is with rubber latex thread;
Tank washing: by 4 tanks with described circle and be with the rubber latex thread disacidify, 70 ℃ of the temperature controls of each tank;
The dry moisture content of removing: with the circular of gained disacidify and with rubber latex thread by being about 30 meters loft drier, the loft drier temperature is controlled at 120 ℃;
Vulcanization crosslinking: with the dry circular of gained and with rubber latex thread by being about 30 meters curing cage, the curing cage temperature is controlled at 130 ℃;
Case falls: case packing falls.
6. the preparation method of the low temperature resistant rubber latex thread of claim 5 is characterized in that, described stablizer is potassium hydroxide;
Randomly, described promotor is 2-thiol benzothiazole zinc salt and zinc dibutyl dithiocarbamate;
Randomly, described vulcanizing agent is sulphur;
Randomly, described anti-aging agent is IONOL LC, the product of p-cresol and the reaction of dicyclopentadiene butylation, and its CAS number is 68610-51-5.
7. the dried glue waste material recovery method of claim 6 is characterized in that, the parts by weight of described stablizer are 0.6-0.9, and promotor is the 2-thiol benzothiazole zinc salt of 1 weight part and the zinc dibutyl dithiocarbamate of 0.5 weight part; Vulcanizing agent is the sulphur of 1.3 weight parts; 1.5 the IONOL LC of weight part; 100.75 the latex after the processing of weight part.
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| CN201310243805.4A CN103319630B (en) | 2013-06-19 | 2013-06-19 | A kind of Low-temperature-resilatex latex yarn |
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| CN201310243805.4A CN103319630B (en) | 2013-06-19 | 2013-06-19 | A kind of Low-temperature-resilatex latex yarn |
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| CN103319630B CN103319630B (en) | 2015-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222765A (en) * | 2016-08-15 | 2016-12-14 | 广东国兴乳胶丝有限公司 | A kind of heat setting formula rubber latex thread production method |
| CN113550024A (en) * | 2021-06-24 | 2021-10-26 | 中国热带农业科学院农产品加工研究所 | Preparation method of superfine high-elastic latex yarn |
| CN117285754A (en) * | 2023-11-24 | 2023-12-26 | 德州市宏祥鞋业有限责任公司 | Insulating glove and manufacturing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102181949A (en) * | 2011-03-22 | 2011-09-14 | 开平市冠威乳胶设备制造有限公司 | Production process of rubber latex thread |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102181949A (en) * | 2011-03-22 | 2011-09-14 | 开平市冠威乳胶设备制造有限公司 | Production process of rubber latex thread |
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| 华南热带作物学院: "《天然胶乳的性质与商品胶乳工艺》", 30 September 1990, article "耐寒胶乳", pages: 151-153 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222765A (en) * | 2016-08-15 | 2016-12-14 | 广东国兴乳胶丝有限公司 | A kind of heat setting formula rubber latex thread production method |
| CN113550024A (en) * | 2021-06-24 | 2021-10-26 | 中国热带农业科学院农产品加工研究所 | Preparation method of superfine high-elastic latex yarn |
| CN113550024B (en) * | 2021-06-24 | 2022-03-11 | 中国热带农业科学院农产品加工研究所 | Preparation method of superfine high-elastic latex yarn |
| CN117285754A (en) * | 2023-11-24 | 2023-12-26 | 德州市宏祥鞋业有限责任公司 | Insulating glove and manufacturing method thereof |
| CN117285754B (en) * | 2023-11-24 | 2024-02-23 | 德州市宏祥鞋业有限责任公司 | Insulating glove and manufacturing method thereof |
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