CN104071089B - Trunk sealing strip and preparation method thereof - Google Patents
Trunk sealing strip and preparation method thereof Download PDFInfo
- Publication number
- CN104071089B CN104071089B CN201410259597.1A CN201410259597A CN104071089B CN 104071089 B CN104071089 B CN 104071089B CN 201410259597 A CN201410259597 A CN 201410259597A CN 104071089 B CN104071089 B CN 104071089B
- Authority
- CN
- China
- Prior art keywords
- rubber
- sealing strip
- refining glue
- agent
- trunk sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Abstract
The invention discloses a kind of trunk sealing strip, be made up of closely knit glue material, expanded material, sealing material and core gold, rubber, carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol are carried out rubber one section refining glue；Again one section of refining glue finished product, vulcanizing agent, compound accelerant, foaming agent, antiscorching agent mixing are carried out two sections of refining glue；The rubber trunk sealing strip after sulfuration is prepared with closely knit glue material, expanded material, core gold after finally being vulcanized by extrusion and baking oven by two sections of refining glue finished products；Rubber trunk sealing strip after sulfuration prepares this trunk sealing strip through shape pruning.Present invention also offers the preparation method of a kind of trunk sealing strip.The sealing material deformability of the new type rubber sealing strip of the present invention is strong, good seal performance, will not pollute vehicle body steel plate, free from extraneous odour；Will not air-dry because of dehydration and lose sealed waterproof effect, service life is long；And the processing technology of this sealing strip relatively adhesive sticker processing technology is simple, used device and cost of labor are low.
Description
Technical field
The present invention relates to Rubber Seal Strip for Automobile field, particularly refer to a kind of trunk sealing strip and preparation method thereof.
Background technology
In sealing strip industry at home and abroad, rubber waterproof technology generally uses the material of a kind of Pressure-SensitiveAdhesive (adhesive sticker) to be filled with between sealing strip and autobody sheet, to prevent water from penetrating into.This adhesive material processing technology is complicated, needs after rubber weather strip machines, and uses special equipment to carry out adhesive sticker injection；Material itself has pollution to vehicle body sheet metal, has peculiar smell, cost high and service life is short.
Summary of the invention
For the above-mentioned state of the art, the first object of the present invention is to provide a kind of trunk sealing strip.
The second object of the present invention is to provide the preparation method of this trunk sealing strip, and the sealing material deformability of this trunk sealing strip is strong, good seal performance, will not pollute vehicle body steel plate, free from extraneous odour；Will not air-dry because of dehydration and lose sealed waterproof effect, service life is long；And its processing technology relatively adhesive sticker processing technology is simple, used device and cost of labor are low.
The first object of the present invention is reached by following measure: trunk sealing strip, it is made up of closely knit glue material, expanded material, sealing material and core gold, it is characterized in that: this trunk sealing strip is to comprise the following steps to form: rubber, carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol are carried out rubber one section refining glue, and described rubber is 40%～42.4%:29.2%～33.6%:20.8%～25.2%:1.6%～2.6%:0.8%:0.8% with carbon black, rubber filling oil, zinc oxide, stearic acid, the mass ratio that feeds intake of ethylene glycol；
Again one section of refining glue finished product, vulcanizing agent, compound accelerant, foaming agent, antiscorching agent mixing are carried out two sections of refining glue and prepare two sections of refining glue finished products；Described one section of rubber is 90.91%～93.28%:0.37%～1.09%:1.49%～2.18%:4.66%～5.45%:0.19%-0.36% with vulcanizing agent, compound accelerant, foaming agent, the mass ratio that feeds intake of antiscorching agent；
Preparing rubber trunk sealing strip after sulfuration with closely knit glue material, expanded material, core gold after finally being vulcanized by compound extrusion moulding and baking oven by described two sections of refining glue finished products, after described sulfuration, the proportion of rubber trunk sealing strip sealing material is 0.35 ± 0.1g/cm3；Vulcanized rubber prepares this trunk sealing strip through shape pruning.
The most described core gold thickness is 0.35 ± 0.05mm, fabric width 36 ± 0.3mm, camber 5mm/2m；
The second object of the present invention is reached by following measure: the preparation method of trunk sealing strip, it is characterised in that: it comprises the steps:
(1) rubber one section refining glue: banburying 8～10min of rubber, carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol being pressurizeed in banbury reaches 130～140 DEG C to temperature, then by just mix glue be delivered to mill carry out mill 6～8min, cool down, cut into slices, prepare one section of refining glue finished product；Described rubber is 40%～42.4%:29.2%～33.6%:20.8%～25.2%:1.6%～2.6%:0.8%:0.8% with carbon black, rubber filling oil, zinc oxide, stearic acid, the mass ratio that feeds intake of ethylene glycol；
(2) rubber two-stage refining glue: one section of refining glue finished product, vulcanizing agent, compound accelerant, foaming agent, antiscorching agent are added banbury under conditions of 50 DEG C～60 DEG C, banburying 3～4min, be then sent to mill carry out beginning to pratise 5～6min, cooling, slitting, prepare two sections of refining glue finished products；Described one section of rubber is 90.91%～93.28%:0.37%～1.09%:1.49%～2.18%:4.66%～5.45%:0.19%～0.36% with vulcanizing agent, compound accelerant, foaming agent, the mass ratio that feeds intake of antiscorching agent；
(3) compound extrusion moulding: being plasticated by extruder with core gold by two sections of refining glue finished products in step (2), the temperature of extruder is 50～70 DEG C, goes out high pressure composite molding at extrusion neck ring mold, and die temperature is 60～70 DEG C；
(4) baking oven sulfuration: by high temperature oven, the elastomeric material being combined in step (3) is carried out the vulcanization of rubber, prepares vulcanized rubber；Oven temperature is 230～250 DEG C, and cure time is 8～10min；
(5) formed product, prune, put in storage: be shaped vulcanized rubber in step (4) pruning and finished product put in storage, make trunk sealing strip.
As a kind of preferred version, the rubber in described step (1) is under the conditions of ML (1+4) 100 DEG C, and Mooney viscosity is the ethylene propylene diene rubber of 20-30；Carbon black is hard carbon black N550；Rubber filling oil be paraffin oil content 60%～70%, aromatic naphtha content less than 3% environmentally-frierubber rubber filling oil.
As another preferred version, the vulcanizing agent in described step (2) is the particle diameter insoluble sulfur at 200 mesh；Described compound accelerant is to be combined formulated by 40%:32%:12%:8%:8% by MBT, ZDMC, TMTD, DPG, DPTT；Described foaming agent is the composite foamable agent being composited by OBSH, AC 2:1 in mass ratio, and wherein OBSH refers to chemistry entitled 4, and 4-OBSH, decomposition temperature is 158 DEG C～the CBA of 164 DEG C；Wherein AC refers to chemical entitled azodicarbonamide, and decomposition temperature is the CBA of about 200 DEG C.
As another preferred version, described antiscorching agent is N-cyclohexyl thiophthalimide, is called for short PVI, is a kind of anti-incipient scorch auxiliary agent preventing rubber processing generation prevulcanization.
As another preferred version, in terms of mass fraction, the core each constituent content of gold in described step (3) is carbon 0.05%, and silicon 0.017%, manganese 0.23%, phosphorus 0.016%, sulphur 0.007%, remaining is iron.
It is an advantage of the current invention that: the invention provides a kind of novel proportion is 0.35 ± 0.1g/cm3High-foaming rubber water-proof material material, material deformation ability is strong, when contact with autobody sheet, the sealing that energy is fabulous, prevent water from penetrating into.This novel waterproof material processing technology is simple, during sealing strip compound extruded, uses multi-combining technology, is compounded on sealing strip by this new rubber water-proof material, decreases input and the artificial cost put into of special line processing of adhesive sticker injection device；Novel water-stop material material does not pollute vehicle body sheet metal, free from extraneous odour；Relatively for adhesive material, rubber water-proof material will not lose sealing water resistance because dehydration wind opens, and service life is long.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of core of the present invention gold.
Fig. 2 is the side-looking structural representation of core of the present invention gold.
In figure: 1. core gold locates a size of 36 ± 0.3mm；2. a size of 0.35 ± 0.05mm is located；3. a size of 2.4 ± 0.05mm is located；4. a size of 3.2 ± 0.2mm is located.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Crude rubber used by the present invention is ethylene propylene diene rubber, and carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol, vulcanizing agent, compound accelerant, foaming agent are commercially available product.
Embodiment 1:
The process of the preparation method of the present invention is as follows:
(1) by recipe requirements, one section of glue material of rubber and two sections of glue materials are carried out raw and auxiliary material metering and coordinate.
(2) one sections of glue rubbers are plasticated: 50kg sealing material rubber raw rubber being carried out on adding pressure type banbury rubber and plasticates, the time of plasticating is 2min, and plasticating temperature is 60 DEG C.
(3) one sections of glue are mixing: in the rubber plasticated, be sequentially added into carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol, carry out mixing；Mixer mixing process reaches 130 DEG C for pressurization banburying 6min to temperature.
(4) one sections of glue are begun to pratise: mix one section of glue is delivered to mill, and carry out beginning to pratise 6min on a mill until, after having begun to pratise, carry out film section, cool down, pack.
(5) two sections of glue rubber plastic steelmakings: one section of glue of 50kg rubber being carried out on adding pressure type banbury preliminary working and plasticates, the time of plasticating is 0.5min, and plasticating temperature is 45 DEG C.
(6) two sections of glue are mixing: in the one section of glue plasticated, be sequentially added into vulcanizing agent, compound accelerant, foaming agent, carry out mixing；Mixer mixing process is pressurization banburying 2.5min, and plasticating temperature is 50 DEG C.
(7) two sections of glue are begun to pratise: mix two sections of glue are delivered to mill, and carry out beginning to pratise 5min on a mill until, after having begun to pratise, carries out film section, cooling, place rubber thermostatic chamber after framing up, and thermostatic chamber temperature is 10～16 DEG C.
(8) core gold is preforming: it is preforming that core gold carries out core gold, and the core gold after shaping is by mouth die, and traction is to hauling machine.
(9) rubber combined extrusion: closely knit for above-mentioned rubber material, rubber pange material and rubber water-proof material are plasticated by extruder, compound at mouth die after plasticating, compound rear haulage is to baking oven.Extruder temperature is 50 DEG C, and extruder rotating speed is depending on shape of product, and cross-head temperature is 60 DEG C.
(10) rubber baking oven sulfuration: by the rubber weather strip of compound extruded, be drawn through four joint baking ovens successively and press to hauling machine, hauling machine, fixing rubber weather strip distracted position and speed.Oven temperature is 230 DEG C, after baking oven one or two joint is except high-temperature hot-air, is respectively arranged with microwave vulcanization device at, and microwave power is 2Kw, cure time about 10min, and product hauling speed in baking oven is determined by extruder and hauling machine.
(11) rubber-moulding is pruned and finished product is put in storage: being shaped according to drawing requirement by the rubber weather strip completing sulfuration and prune, after completing, product warehousing is sealed up for safekeeping.
Embodiment 2: the step of preparation method is with embodiment 1, and difference is: in (2), one section of glue is plasticated time 2min, plasticating temperature 60 DEG C.(3) in, mixer mixing process reaches 135 DEG C for pressurization banburying 7min to temperature.(4) two sections of glue in time 7min. (5) of beginning to pratise in mill in are plasticated time 0.5min, plasticating temperature 45 DEG C.(6) in, two sections of glue mixer mixing process are pressurization banburying 3min, banburying temperature value 55 DEG C.(7) in, two sections of glue are begun to pratise 5.5min on a mill until.(9) extruder temperature 60 DEG C in, cross-head temperature 65 DEG C.(10) oven temperature 240 DEG C in, microwave power 2Kw, cure time about 9min.
Embodiment 3: the step of preparation method is with embodiment 1, and difference is: in (2), one section of glue is plasticated time 2min, plasticating temperature 60 DEG C.(3) in, mixer mixing process reaches 140 DEG C for pressurization banburying 8min to temperature.(4) begin to pratise in mill in time 8min.(5) in, two sections of glue are plasticated time 0.5min, plasticating temperature 45 DEG C.(6) in, two sections of glue mixer mixing process are pressurization banburying 3.5min, banburying temperature value 60 DEG C.(7) in, two sections of glue are begun to pratise 6min on a mill until.(9) extruder temperature 70 DEG C in, cross-head temperature 70 C.(10) oven temperature 250 DEG C in, microwave power 2Kw, cure time about 8min.
Embodiment 4～6: preparation method is with embodiment 1.
The formula of the embodiment of the present invention 1～3 is as shown in table 1.
Table 1 low-gravity rubber closely knit material Example formulations:
The present invention tests the rubber close material properties of acquisition and sees table 2.
Table 2 low-gravity rubber close material embodiment material property:
This trunk sealing strip is respond well at the waterproof probatio inspectionem pecuoarem of main engine plants, meets the requirement of main engine plants, volume production supply in CRV vehicle.
The formula of the embodiment of the present invention 4～6 is as shown in table 3.
Table 3 low-gravity rubber closely knit material Example formulations:
Compound accelerant in the present invention, wherein MBT refers to chemicals 2-benzothiazolyl mercaptan, is a kind of middling speed thiofide；Wherein ZDMC refers to chemicals PZ, is a kind of hypervelocity thiofide；Wherein TMTD refers to chemicals tetramethylthiuram disulfide, is a kind of ultra-rapid vulcanization accelerator；Wherein DPG refers to chemicals diphenylguanidine, is a kind of middling speed thiofide；Wherein DPTT refers to chemicals tetra-sulfurized pair penta-methylene thiuram, is a kind of secondary accelerator.
Claims (7)
1. a trunk sealing strip, it is made up of closely knit glue material, expanded material, sealing material and core gold, it is characterized in that: this trunk sealing strip is to comprise the following steps to form: rubber, carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol are carried out rubber one section refining glue, and described rubber is 40%～42.4%:29.2%～33.6%:20.8%～25.2%:1.6%～2.6%:0.8%:0.8% with carbon black, rubber filling oil, zinc oxide, stearic acid, the mass ratio that feeds intake of ethylene glycol；
Again one section of refining glue finished product, vulcanizing agent, compound accelerant, foaming agent, antiscorching agent mixing are carried out two sections of refining glue and prepare two sections of refining glue finished products；Described one section of refining glue finished product is 90.91%～93.28%:0.37%～1.09%:1.49%～2.18%:4.66%～5.45%:0.19%～0.36% with vulcanizing agent, compound accelerant, foaming agent, the mass ratio that feeds intake of antiscorching agent；
Preparing vulcanized rubber after finally being vulcanized by compound extrusion moulding and baking oven with core gold by described two sections of refining glue finished products, the proportion of described vulcanized rubber is 0.35 ± 0.1g/cm3；Vulcanized rubber prepares this trunk sealing strip through shape pruning.
Trunk sealing strip the most according to claim 1, it is characterised in that: described core gold thickness is 0.35 ± 0.05mm, fabric width 36 ± 0.3mm, camber 5mm/2m.
3. the preparation method of a trunk sealing strip, it is characterised in that: it comprises the steps:
(1) rubber one section refining glue: banburying 8～10min of rubber, carbon black, rubber filling oil, zinc oxide, stearic acid, ethylene glycol being pressurizeed in banbury reaches 130～140 DEG C to temperature, then it is delivered to mill and carries out mill 6～8min by just mixing glue, cool down, cut into slices, prepare one section of refining glue finished product；Described rubber is 40%～42.4%:29.2%～33.6%:20.8%～25.2%:1.6%～2.6%:0.8%:0.8% with carbon black, rubber filling oil, zinc oxide, stearic acid, the mass ratio that feeds intake of ethylene glycol；
(2) rubber two-stage refining glue: one section of refining glue finished product, vulcanizing agent, compound accelerant, foaming agent, antiscorching agent are added banbury under conditions of 50 DEG C～60 DEG C, banburying 3～4min, be then sent to mill carry out beginning to pratise 5～6min, cooling, slitting, prepare two sections of refining glue finished products；Described one section of refining glue finished product is 90.91%～93.28%:0.37%～1.09%:1.49%～2.18%:4.66%～5.45%:0.19%～0.36% with vulcanizing agent, compound accelerant, foaming agent, the mass ratio that feeds intake of antiscorching agent；
(3) compound extrusion moulding: being plasticated by extruder with core gold by two sections of refining glue finished products in step (2), the temperature of extruder is 50～70 DEG C, goes out high pressure composite molding at extrusion neck ring mold, and die temperature is 60～70 DEG C；
(4) baking oven sulfuration: by high temperature oven, the elastomeric material being combined in step (3) is carried out the vulcanization of rubber, prepares vulcanized rubber；Oven temperature is 230～250 DEG C, and cure time is 8～10min；
(5) formed product, prune, put in storage: be shaped vulcanized rubber in step (4) pruning and finished product put in storage, make trunk sealing strip.
The preparation method of trunk sealing strip the most according to claim 3, it is characterised in that: the rubber in described step (1) is under the conditions of ML (1+4) 100 DEG C, and Mooney viscosity is the ethylene propylene diene rubber of 20～30；Carbon black is hard carbon black N550；Rubber filling oil be paraffin oil content 60%～70%, aromatic naphtha content less than 3% environmentally-frierubber rubber filling oil.
The preparation method of trunk sealing strip the most according to claim 3, it is characterised in that: the vulcanizing agent in described step (2) is the particle diameter insoluble sulfur at 200 mesh；Described compound accelerant is to be combined formulated by MBT, ZDMC, TMTD, DPG, DPTT 40%:32%:12%:8%:8% in mass ratio；Described foaming agent is the composite foamable agent being composited by OBSH, AC 2:1 in mass ratio.
The preparation method of trunk sealing strip the most according to claim 3, it is characterised in that: described antiscorching agent is N-cyclohexyl thiophthalimide.
The preparation method of trunk sealing strip the most according to claim 3, it is characterised in that: in terms of mass fraction, the core each constituent content of gold in described step (3) is carbon 0.05%, silicon 0.017%, manganese 0.23%, phosphorus 0.016%, sulphur 0.007%, remaining is iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259597.1A CN104071089B (en) | 2014-06-11 | 2014-06-11 | Trunk sealing strip and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259597.1A CN104071089B (en) | 2014-06-11 | 2014-06-11 | Trunk sealing strip and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104071089A CN104071089A (en) | 2014-10-01 |
| CN104071089B true CN104071089B (en) | 2016-08-24 |
Family
ID=51592818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410259597.1A Active CN104071089B (en) | 2014-06-11 | 2014-06-11 | Trunk sealing strip and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104071089B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979680A (en) * | 2019-03-25 | 2019-07-05 | 扬州亚光电缆有限公司 | Exempt from the preparation method of vulcanized rubber composite material cable |
| CN113429633B (en) * | 2021-07-09 | 2023-04-18 | 科迈特新材料有限公司 | Rubber vulcanization activator and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327092A (en) * | 2001-04-27 | 2002-11-15 | Jsr Corp | Crosslinked polymer composition and molding thereof |
| CN101392084B (en) * | 2008-11-04 | 2012-06-27 | 合肥晨阳橡塑有限公司 | Less harmful nontoxic rubber automobile seal strip |
| CN102516673B (en) * | 2011-11-30 | 2013-08-21 | 长城汽车股份有限公司 | Car door-window straight-line part gland strip and preparation method |
| CN102731866B (en) * | 2012-05-30 | 2013-08-14 | 芜湖荣基密封系统有限公司 | EPDM rubber and nitrile rubber compounded sealing ring material |
| CN102993575A (en) * | 2012-12-04 | 2013-03-27 | 天津鹏翎胶管股份有限公司 | Ethylene propylene diene monomer (EPDM) composition for low-hardness glue injection |
-
2014
- 2014-06-11 CN CN201410259597.1A patent/CN104071089B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104071089A (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104072884B (en) | Rubber weather strip with flannelette effect of extrusion molding and preparation method thereof | |
| CN104072885B (en) | Weather strip for automobile and preparation method thereof | |
| CN105111598A (en) | Automobile rubber sealing strip and preparation method thereof | |
| CN104194079B (en) | A kind of Composite Material Seal Ring and manufacture craft thereof | |
| CN103146080B (en) | A kind of closed pore EPDM rubber foam and preparation method thereof | |
| CN103333416A (en) | Environment-friendly sulfur-free foaming material as well as preparation method and application of environment-friendly sulfur-free foaming material | |
| CN102993575A (en) | Ethylene propylene diene monomer (EPDM) composition for low-hardness glue injection | |
| CN103289147A (en) | O-shaped rubber sealing ring and production technology thereof | |
| CN107674263A (en) | A kind of pressure-resistant rubber sealing ring synthetic material and its production technology | |
| CN104448543A (en) | TPV material for car interior skin and processing method of TPV material | |
| CN109627606A (en) | A kind of low smell, foam seal material of low compression deformation and preparation method thereof | |
| CN104071089B (en) | Trunk sealing strip and preparation method thereof | |
| CN104908191A (en) | Production technology of vehicle door sponge rubber sealing ring with high sealability | |
| CN111925564B (en) | Rubber material for rubber water seal and preparation forming method and equipment thereof | |
| CN103881164A (en) | Automotive rubber material and production method thereof | |
| CN102352072A (en) | Rubber seal cover assembly of steering shaft of automobile steering column and manufacturing process thereof | |
| CN102634110A (en) | Preparation method of thermoplastic elastomer PP special material with high fluidity and excellent permanent deformation resistance | |
| CN107189241A (en) | A kind of production technology of weather strip for automobile | |
| CN115322458B (en) | Environment-friendly rubber-plastic heat-insulating material and preparation method thereof | |
| CN103665451A (en) | Molded rubber outsole without exhaust hole and preparation method of molded rubber outsole | |
| CN103030846A (en) | High-stiffness and high-hardness oil-resistant rubber part | |
| CN104829886B (en) | A kind of nitrile rubber and preparation method thereof | |
| CN104829896B (en) | A kind of production technology of greasy filth reclaimed rubber deceleration strip | |
| CN103146079B (en) | Open-cell EPDM (ethylene-propylene-diene monomer) rubber foam and preparation method thereof | |
| CN103171065A (en) | Mould releasing glue for mould and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |