CN102206364A - Method for preparing water-swellable rubber - Google Patents
Method for preparing water-swellable rubber Download PDFInfo
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- CN102206364A CN102206364A CN 201110028658 CN201110028658A CN102206364A CN 102206364 A CN102206364 A CN 102206364A CN 201110028658 CN201110028658 CN 201110028658 CN 201110028658 A CN201110028658 A CN 201110028658A CN 102206364 A CN102206364 A CN 102206364A
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Abstract
The invention relates to a method for preparing water-swellable rubber. The method comprises the following steps of: 1, preparing water-swellable polyurethane particles; 2, mixing rubber materials; 3, manufacturing a product: uniformly mixing gross rubber manufactured in the step 2 in an open type rubber mixing mill, standing for 12 hours, pressing and forming, and then directly feeding in a vulcanizing plant to vulcanize between 80 DEG C and 180 DEG C for 5-60 minutes to prepare the water-swellable rubber. In the method, polyurethane powder particles are added into the rubber to replace the conventional swellable powder under a condition that other components are not changed, the particles contain N-C bonds which have the same polarity with molecular bonds in the rubber, so that the particles have better combination with the rubber; and the particles have a certain reinforcing effect to the mechanical performance of the rubber, while the conventional swellable powder and the rubber have no reinforcing effect, so that the mechanical performance is reinforced compared with that of the conventional material.
Description
Technical field
The present invention relates to a kind of rubber sealing material.Be specifically related to a kind of hydro-expansive rubber.Belong to the product of rubber and plastic technical field.
Background technology
At present the rubber sealing material that generally uses mainly contains two kinds of hydro-expansive rubber sealed strip and water-swellable polyurethane(s):
The former hydro-expansive rubber sealed strip is carried out the GB18173.3-2002 standard.Be a kind of waterproof and sealing material with water-swellable function.Be widely used in people's air defense, subway, tunnel, sewage treatment project, swimming pool etc. and other concrete engineering construction seam, expansion joint, building boats and ships door and window and other occasion, seal.It is to add super absorbent resin in rubber, vulcanizes the macromolecular material that forms by High Temperature High Pressure.Its mechanism of action is to add performed polymer in rubber, and performed polymer and linking agent form reticulated structure in rubber under crosslinked situation, reaches the effect of rubber swelling by the water-swelling of performed polymer after sulfuration is finished, thereby reaches the purpose of expansion sealing.Because performed polymer be a liquid state, can affect greatly the mechanical property and the complete processing of sizing material, so add-on is limited, thus obtain expansion multiplying power be 100%-300%.In order to increase expansion multiple, the method that adopts is to add expanding powder in rubber at present, reaches the effect of bulk expansion rate rising by the self-expanding effect of expanding powder.The expansion of expanding powder is disposable, and speed of expansion is fast, rate of expansion is high; Poor because of consistency between expanding powder and the rubber again, be difficult to form chemical bond with rubber macromolecule, precipitate is more behind the water-swellable, does not reach the expansion multiplying power of expection after the prolonged and repeated immersion, loses use value.This shows that there is inborn defective in this material, can't reach the effect of lasting sealing.
Latter's water-expandable polyurethane elastomerics is the polyurethane elastomer material that water-swellable and resilient seal dual-use function were used, had in a kind of engineering field.Its mechanism of action is to utilize a large amount of hydrogen bonds of the inherent of polyurethane material own and water generation physical action and absorb water, thereby reaches expansion.But the mechanical strength that the present defective one that exists is this type of urethane is lower than rubber, and the high more mechanical strength of expansion multiplying power is poor more; The 2nd, ageing-resistant performance is also low many than rubber; The 3rd, the cost costliness; The 4th, resistance to elevated temperatures is relatively poor; The 5th and since the suction group can't with the water comprehensive engagement, absorption speed is slower.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned two class materials, provide a kind of rate of expansion height, absorption speed soon, the preparation method of expansion effect is good repeatedly, mechanical property is superior, long service life and production cost are low hydro-expansive rubber.
The object of the present invention is achieved like this: a kind of preparation method of hydro-expansive rubber, and described method comprises following processing step:
Step 1, preparation water-expandable polyurethane particle
A) base polyurethane prepolymer for use as, linking agent are joined in the casting molding machine by mass ratio 100:2 ~ 20, make compound,
B) compound that step a) is made is poured in the mould on the vulcanizer, makes material base,
C) step b) finish mix base is placed vulcanizer, 80 ℃ ~ 150 ℃ were vulcanized 50 minutes ~ 240 minutes, made solid-state water-expandable polyurethane,
D) the solid-state water-expandable polyurethane that step c) is made places disintegrating apparatus, and being ground into particle diameter is 40 orders ~ 500 purpose water-expandable polyurethane particles;
Step 2, sizing material are mixing
A) place mixer mixing to become rubber unvulcanizate according to rubber, water-absorbing resin, softening agent, stearic acid, zinc oxide, vulcanizing agent, anti-aging agent, strengthening agent, promotor and the water-expandable polyurethane granular mass of step 1 preparation together than 50: 10 ~ 60:1 ~ 15: 0.5 ~ 3: 2 ~ 6: 0.5 ~ 5: 0 ~ 3: 30 ~ 60: 0.5 ~ 3: 30 ~ 60;
Step 3, production
The rubber unvulcanizate that step 2 is made place on the open type rubber mixing machine mixing evenly after, placed 12 hours, compression moulding is then directly sent in the vulcanizing plant and is vulcanized, 80 ℃ ~ 180 ℃ of curing temperatures, vulcanize and are hydro-expansive rubber at 5 minutes ~ 60 minutes time.
The invention has the beneficial effects as follows:
What the inventive method adopted is that the polyurethane powder particle adds in the rubber, under the constant situation of other components only be substitute with polyurethane particles before employed expanding powder, because contain the N-C key in the particle, identical with molecular linkage polarity in the rubber, so it is better with the associativity of rubber, mechanical property to rubber has certain strengthening action, and therefore original employed expanding powder and rubber are strengthened than original material on mechanical property to some extent without any strengthening action.
The expanding powder that adds in original expanded rubber can only expand once, just lost the effect of water-swellable then, and the designed polyurethane particles of the present invention can expand repeatedly, thereby increases work-ing life, reduces use cost, enhances product performance.And production technique is simple, and is easily mixing, the rate of expansion height, and expansion character improves more than 30%, and absorption speed is fast, and production efficiency can improve 20%, and product life improves 20%, and production cost is low.
Embodiment
The present invention relates to the preparation method of hydro-expansive rubber, described method is with the expanding powder in the alternative hydro-expansive rubber sealed strip of urethane solid granulates.This method comprises following processing step:
Step 1, preparation water-expandable polyurethane particle
A) base polyurethane prepolymer for use as, linking agent are joined in the casting molding machine by mass ratio 100:2 ~ 20, make compound,
B) compound that step a) is made is poured in the mould on the vulcanizer, makes material base,
C) step b) finish mix base is placed vulcanizer, 80 ℃ ~ 150 ℃ were vulcanized 50 minutes ~ 240 minutes, made solid-state water-expandable polyurethane,
D) the solid-state water-expandable polyurethane that step c) is made places disintegrating apparatus, and being ground into particle diameter is 40 orders ~ 500 purpose water-expandable polyurethane particles;
Step 2, sizing material are mixing
A) place mixer mixing to become rubber unvulcanizate according to rubber, water-absorbing resin, softening agent, stearic acid, zinc oxide, vulcanizing agent, anti-aging agent, strengthening agent, promotor and the water-expandable polyurethane granular mass of step 1 preparation together than 50: 10 ~ 60:1 ~ 15: 0.5 ~ 3: 2 ~ 6: 0.5 ~ 5: 0 ~ 3: 30 ~ 60: 0.5 ~ 3: 30 ~ 60;
Step 3, production
The rubber unvulcanizate that step 2 is made place on the open type rubber mixing machine mixing evenly after, placed 12 hours, compression moulding is then directly sent in the vulcanizing plant and is vulcanized, 80 ℃ ~ 180 ℃ of curing temperatures, vulcanize and are hydro-expansive rubber at 5 minutes ~ 60 minutes time;
Described rubber is a kind of of natural rubber, chloroprene rubber, ethylene-propylene rubber(EPR), nitrile rubber, cis-1,4-polybutadiene rubber, chlorinatedpolyethylene, silicon rubber, isoprene-isobutylene rubber or styrene-butadiene rubber(SBR);
Described softening agent is any one or two or more the mixture arbitrarily in dioctyl phthalate (DOP), paraffin, paraffin oil, naphthenic oil, process oil, Vaseline, Stockholm tar, third fractional oil, rosin, the coumarone indene resin, is any proportioning when two or more mixes arbitrarily;
Described vulcanizing agent is any one or any two kinds or any two or more mixture in sulphur, dicumyl peroxide, zinc oxide, the magnesium oxide, is any proportioning during any two or more mixing;
Described anti-aging agent is any one or any two kinds or any two or more mixture among antioxidant D, antioxidant A, antioxidant H, antioxidant D D, antioxidant 4010, antioxidant 4010NA, anti-aging agent UOP788, antioxidant 264, antioxidant SP, antioxidant 2246, antioxidant 2246 S, the antioxidant A W, is any proportioning when two or more mixes arbitrarily;
Described strengthening agent is any one or any two kinds or any two or more mixture in semi-reinforcing hydrocarbon black, white carbon black, the potter's clay, is any proportioning when any two kinds or any two or more mixing;
Described promotor is any one or any two kinds or any two or more mixture in vulkacit D, altax, accelerant CZ, TM monex TD, accelerator NS, vulkacit H, the accelerant N A-22 captax, is any proportioning when any two kinds or any two or more mixing.
Described rubber is a kind of of natural rubber, chloroprene rubber, ethylene-propylene rubber(EPR), nitrile rubber, cis-1,4-polybutadiene rubber, chlorinatedpolyethylene, silicon rubber, isoprene-isobutylene rubber or styrene-butadiene rubber(SBR);
Described softening agent is any one or two or more the mixture arbitrarily in dioctyl phthalate (DOP), paraffin, paraffin oil, naphthenic oil, process oil, Vaseline, Stockholm tar, third fractional oil, rosin, the coumarone indene resin, is any proportioning when two or more mixes arbitrarily;
Described vulcanizing agent is any one or any two kinds or any two or more mixture in sulphur, dicumyl peroxide, zinc oxide, the magnesium oxide, is any proportioning during any two or more mixing;
Described anti-aging agent is any one or any two kinds or any two or more mixture among antioxidant D, antioxidant A, antioxidant H, antioxidant D D, antioxidant 4010, antioxidant 4010NA, anti-aging agent UOP788, antioxidant 264, antioxidant SP, antioxidant 2246, antioxidant 2246 S, the antioxidant A W, is any proportioning when two or more mixes arbitrarily;
Described strengthening agent is any one or any two kinds or any two or more mixture in semi-reinforcing hydrocarbon black, white carbon black, the potter's clay, is any proportioning when any two kinds or any two or more mixing;
Described promotor is any one or any two kinds or any two or more mixture in vulkacit D, altax, accelerant CZ, TM monex TD, accelerator NS, vulkacit H, the accelerant N A-22 captax, is any proportioning when any two kinds or any two or more mixing.
Claims (1)
1. the preparation method of a hydro-expansive rubber, it is characterized in that: described method comprises following processing step:
Step 1, preparation water-expandable polyurethane particle
A) base polyurethane prepolymer for use as, linking agent are joined in the casting molding machine by mass ratio 100:2 ~ 20, make compound,
B) compound that step a) is made is poured in the mould on the vulcanizer, makes material base,
C) step b) finish mix base is placed vulcanizer, 80 ℃ ~ 150 ℃ were vulcanized 50 minutes ~ 240 minutes, made solid-state water-expandable polyurethane,
D) the solid-state water-expandable polyurethane that step c) is made places disintegrating apparatus, and being ground into particle diameter is 40 orders ~ 500 purpose water-expandable polyurethane particles;
Step 2, sizing material are mixing
A) place mixer mixing to become rubber unvulcanizate according to rubber, water-absorbing resin, softening agent, stearic acid, zinc oxide, vulcanizing agent, anti-aging agent, strengthening agent, promotor and the water-expandable polyurethane granular mass of step 1 preparation together than 50: 10 ~ 60:1 ~ 15: 0.5 ~ 3: 2 ~ 6: 0.5 ~ 5: 0 ~ 3: 30 ~ 60: 0.5 ~ 3: 30 ~ 60;
Step 3, production
The rubber unvulcanizate that step 2 is made place on the open type rubber mixing machine mixing evenly after, placed 12 hours, compression moulding is then directly sent in the vulcanizing plant and is vulcanized, 80 ℃ ~ 180 ℃ of curing temperatures, vulcanize and are hydro-expansive rubber at 5 minutes ~ 60 minutes time;
Described rubber is a kind of of natural rubber, chloroprene rubber, ethylene-propylene rubber(EPR), nitrile rubber, cis-1,4-polybutadiene rubber, chlorinatedpolyethylene, silicon rubber, isoprene-isobutylene rubber or styrene-butadiene rubber(SBR);
Described softening agent is any one or two or more the mixture arbitrarily in dioctyl phthalate (DOP), paraffin, paraffin oil, naphthenic oil, process oil, Vaseline, Stockholm tar, third fractional oil, rosin, the coumarone indene resin, is any proportioning when two or more mixes arbitrarily;
Described vulcanizing agent is any one or any two kinds or any two or more mixture in sulphur, dicumyl peroxide, zinc oxide, the magnesium oxide, is any proportioning during any two or more mixing;
Described anti-aging agent is any one or any two kinds or any two or more mixture among antioxidant D, antioxidant A, antioxidant H, antioxidant D D, antioxidant 4010, antioxidant 4010NA, anti-aging agent UOP788, antioxidant 264, antioxidant SP, antioxidant 2246, antioxidant 2246 S, the antioxidant A W, is any proportioning when two or more mixes arbitrarily;
Described strengthening agent is any one or any two kinds or any two or more mixture in semi-reinforcing hydrocarbon black, white carbon black, the potter's clay, is any proportioning when any two kinds or any two or more mixing;
Described promotor is any one or any two kinds or any two or more mixture in vulkacit D, altax, accelerant CZ, TM monex TD, accelerator NS, vulkacit H, the accelerant N A-22 captax, is any proportioning when any two kinds or any two or more mixing.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516618A (en) * | 2011-11-24 | 2012-06-27 | 山西合成橡胶集团有限责任公司 | Compounded emulsion stabilizer in sulfur-modified neoprene rubber |
| CN103613855A (en) * | 2013-10-20 | 2014-03-05 | 安徽嘉木橡塑工业有限公司 | High-strength wear-resistant rubber pipe |
| CN104592654A (en) * | 2015-01-21 | 2015-05-06 | 柳州市颖航汽配有限公司 | Insulated rubber |
| CN104658773A (en) * | 2015-02-02 | 2015-05-27 | 柳州市二和汽车零部件有限公司 | Rubber on-off key |
| CN104672524A (en) * | 2015-02-03 | 2015-06-03 | 四川佳世特橡胶有限公司 | Formula of water swelling rubber |
| CN105713253A (en) * | 2016-01-29 | 2016-06-29 | 宁波远欣石化有限公司 | High-waterproof anti-leakage sealing rubber material and preparation method thereof |
| CN106398253A (en) * | 2016-05-26 | 2017-02-15 | 安徽金兑新材料科技有限公司 | Method for preparing leather plasticizer based on twigs |
| CN109354734A (en) * | 2018-10-25 | 2019-02-19 | 西北橡胶塑料研究设计院有限公司 | A kind of flame retardant type hydro-expansive rubber material and preparation method thereof |
| CN110527058A (en) * | 2019-07-30 | 2019-12-03 | 浙江神州科技化工有限公司 | A kind of water-swellable body material synthesis method |
| CN112848361A (en) * | 2020-12-31 | 2021-05-28 | 安徽砼宇特构科技有限公司 | Production process of water-swellable adhesive tape |
| CN117466748A (en) * | 2023-12-28 | 2024-01-30 | 科迈化工股份有限公司 | P-phenylenediamine anti-aging agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307160A (en) * | 2008-06-23 | 2008-11-19 | 上海捷钦橡塑有限公司 | High strength hydro-expansive rubber |
| CN101812191A (en) * | 2010-04-16 | 2010-08-25 | 青岛科技大学 | Method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber |
| CN101824217A (en) * | 2009-03-04 | 2010-09-08 | 中国石油天然气股份有限公司 | Polyurethane rubber composition and preparation process thereof |
-
2011
- 2011-01-27 CN CN 201110028658 patent/CN102206364A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307160A (en) * | 2008-06-23 | 2008-11-19 | 上海捷钦橡塑有限公司 | High strength hydro-expansive rubber |
| CN101824217A (en) * | 2009-03-04 | 2010-09-08 | 中国石油天然气股份有限公司 | Polyurethane rubber composition and preparation process thereof |
| CN101812191A (en) * | 2010-04-16 | 2010-08-25 | 青岛科技大学 | Method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber |
Non-Patent Citations (1)
| Title |
|---|
| 《现代橡胶配方设计（第二版）》 20011030 张殿荣等 现代橡胶配方设计 化学工业出版社 第322－324页 1 , * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516618A (en) * | 2011-11-24 | 2012-06-27 | 山西合成橡胶集团有限责任公司 | Compounded emulsion stabilizer in sulfur-modified neoprene rubber |
| CN103613855A (en) * | 2013-10-20 | 2014-03-05 | 安徽嘉木橡塑工业有限公司 | High-strength wear-resistant rubber pipe |
| CN104592654A (en) * | 2015-01-21 | 2015-05-06 | 柳州市颖航汽配有限公司 | Insulated rubber |
| CN104658773A (en) * | 2015-02-02 | 2015-05-27 | 柳州市二和汽车零部件有限公司 | Rubber on-off key |
| CN104672524A (en) * | 2015-02-03 | 2015-06-03 | 四川佳世特橡胶有限公司 | Formula of water swelling rubber |
| CN105713253A (en) * | 2016-01-29 | 2016-06-29 | 宁波远欣石化有限公司 | High-waterproof anti-leakage sealing rubber material and preparation method thereof |
| CN106398253A (en) * | 2016-05-26 | 2017-02-15 | 安徽金兑新材料科技有限公司 | Method for preparing leather plasticizer based on twigs |
| CN109354734A (en) * | 2018-10-25 | 2019-02-19 | 西北橡胶塑料研究设计院有限公司 | A kind of flame retardant type hydro-expansive rubber material and preparation method thereof |
| CN110527058A (en) * | 2019-07-30 | 2019-12-03 | 浙江神州科技化工有限公司 | A kind of water-swellable body material synthesis method |
| CN110527058B (en) * | 2019-07-30 | 2022-01-14 | 浙江神州科技化工有限公司 | Method for synthesizing water-swellable material |
| CN112848361A (en) * | 2020-12-31 | 2021-05-28 | 安徽砼宇特构科技有限公司 | Production process of water-swellable adhesive tape |
| CN117466748A (en) * | 2023-12-28 | 2024-01-30 | 科迈化工股份有限公司 | P-phenylenediamine anti-aging agent and preparation method thereof |
| CN117466748B (en) * | 2023-12-28 | 2024-05-03 | 科迈化工股份有限公司 | P-phenylenediamine anti-aging agent and preparation method thereof |
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Application publication date: 20111005 |