CN111171420A - Low-hardness low-smoke halogen-free hydrogenated nitrile rubber, production process thereof and rubber sealing element - Google Patents
Low-hardness low-smoke halogen-free hydrogenated nitrile rubber, production process thereof and rubber sealing element Download PDFInfo
- Publication number
- CN111171420A CN111171420A CN201911030094.6A CN201911030094A CN111171420A CN 111171420 A CN111171420 A CN 111171420A CN 201911030094 A CN201911030094 A CN 201911030094A CN 111171420 A CN111171420 A CN 111171420A
- Authority
- CN
- China
- Prior art keywords
- parts
- rubber
- low
- hydrogenated nitrile
- adjusting
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/026—Phosphorus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses low-hardness low-smoke halogen-free hydrogenated nitrile rubber, a production process thereof and a rubber sealing element. Wherein, the hydrogenated nitrile rubber is prepared from the following raw materials in parts by weight: 100 parts of hydrogenated nitrile rubber, 1-8 parts of zinc oxide, 0.5-2 parts of stearic acid, 0.5-4 parts of a dispersing agent, 2-15 parts of carbon black, 50-90 parts of modified aluminum hydroxide, 5-15 parts of red phosphorus, 5-15 parts of zinc borate, 20-40 parts of aliphatic phosphate, 1-5 parts of a vulcanizing agent and 2-6 parts of a vulcanizing aid. The materials in the formula of the invention are all commercially available materials, and the materials do not contain halogen; the hardness of the rubber product is 42HA, the hardness of the rubber product is lower than that of a halogen-free flame-retardant product on the market, and the halogen-free flame-retardant product can further meet the requirement of lower hardness of a client; the sealing element passes SGS detection, and halogen-free flame retardant rating of the sealing element reaches UL94V 0.
Description
Technical Field
The invention relates to the technical field of sealing membranes, in particular to low-hardness low-smoke halogen-free hydrogenated nitrile rubber, a production process thereof and a rubber sealing element.
Background
Halogen-containing polymers or flame-retardant blends with halogen-containing flame retardants have excellent flame-retardant properties and have been widely used as flame-retardant materials. However, in the event of a fire, such halogen-containing flame retardant materials generate a large amount of smoke and toxic corrosive hydrogen halide gas, causing secondary hazards.
The new flame-retardant system has small smoke amount during combustion and does not generate toxic and corrosive gases. The halogen-free flame retardant additive mainly comprises phosphorus compounds and metal hydroxides. These two types of compounds are called pollution-free flame retardants because they do not volatilize and do not generate corrosive gases when burned, and there are several types of novel halogen-free flame retardants such as silicon-based flame retardants and nitrogen-based flame retardants. The halogen-free flame retardant is to add proper halogen-free flame retardant into the material to achieve the aim.
The hardness of the rubber product which is UL94V0 grade on the market is usually more than 50HA, because the lower the hardness is, in order to ensure the basic mechanical property of the formula, a large amount of softener is required to be added into the formula, and the softener is a combustion-supporting substance, the flame retardant property can be greatly reduced, so that the flame retardant requirement of the product can not reach UL94V0 grade.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the hydrogenated nitrile rubber with low hardness, low smoke and zero halogen, the production process thereof and the rubber sealing element, wherein the Shore hardness of the sealing element is as low as 42HA, and the flame retardant grade reaches UL94V0 grade.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a low-hardness low-smoke halogen-free hydrogenated nitrile rubber comprises the following raw materials in parts by weight: 100 parts of hydrogenated nitrile rubber, 1-8 parts of zinc oxide, 0.5-2 parts of stearic acid, 0.5-4 parts of a dispersing agent, 2-15 parts of carbon black, 50-90 parts of modified aluminum hydroxide, 5-15 parts of red phosphorus, 5-15 parts of zinc borate, 20-40 parts of aliphatic phosphate, 1-5 parts of a vulcanizing agent and 2-6 parts of a vulcanizing aid.
In the technical scheme, the hydrogenated nitrile rubber is Therban LT2157 provided by Arrheniaceae, and the acetonitrile content is 21%; the carbon black is an N774 model provided by cabot, the modified aluminum hydroxide is a 03A model provided by diligent Tong, the red phosphorus is an F2 model provided by diligent Tong, the aliphatic phosphate is a D950 model provided by diligent Tong, and the zinc borate is provided by golden Chang.
In order to further solve the technical problems, the technical scheme adopted by the invention is as follows: a production process of low-hardness low-smoke halogen-free hydrogenated nitrile rubber is used for producing the low-hardness low-smoke halogen-free hydrogenated nitrile rubber, and comprises the following steps:
step 1: adding hydrogenated nitrile rubber into an internal mixer, and keeping the pressure of the internal mixer at 0.7 mpa; plasticating 120S, and adding zinc oxide, stearic acid, a dispersing agent, carbon black, modified aluminum hydroxide serving as a flame retardant, red phosphorus, zinc borate and aliphatic phosphate; pressurizing and mixing for the first time to 85-100 ℃, and turning; pressurizing and mixing for the second time to 90-115 ℃, and turning; pressurizing and mixing for the third time to 100-120 ℃, adjusting the roller spacing of an internal mixer to the film thickness of 1mm, and thinning the rubber; adjusting the roller spacing of the internal mixer to 6mm of the thickness of the rubber sheet, discharging to obtain rubber material A, and standing the rubber material A for more than 8 hours;
step 2: putting the rubber material A into an open mill, adjusting the initial roller temperature of the open mill to be less than or equal to 45 ℃, adjusting the roller distance of the open mill to be 0.9mm of the thickness of the rubber sheet, and softening the rubber sheet after the rubber sheet is too thin; adjusting the roll spacing of the open mill to 4-6mm of the thickness of the rubber sheet, and wrapping the rubber material A by a roll;
and step 3: adjusting the temperature of the open mill to 60-70 ℃; adding a vulcanizing agent into the edge of the roller for a few times, and turning for 2 times; adding a small amount of vulcanization auxiliary agent into the edge of the roller for multiple times, and making a thick triangular bag for 5 times; adjusting the roll gap of the open mill to the thickness of the rubber sheet of 0.8mm, thinning the rubber sheet, packaging the rubber sheet for 3 times, and discharging to obtain a rubber material B;
and 4, step 4: adjusting the temperature of the mold to 160-170 ℃, putting the rubber material B into the mold, closing the mold and vulcanizing, and taking out a semi-finished product;
and 5: and adjusting the temperature of the oven to 130-150 ℃, putting the semi-finished product into the oven, heating the oven for 3-6h, and taking out to obtain the rubber product.
In order to further solve the technical problems, the technical scheme adopted by the invention is as follows: a rubber sealing element is prepared by adopting the production process of the low-hardness low-smoke halogen-free hydrogenated nitrile rubber.
Compared with the prior art, the invention has the beneficial effects that:
(1) the materials are all commercially available materials, and the materials do not contain halogen;
(2) the hardness of the rubber product is 42HA, the hardness of the rubber product is lower than that of a halogen-free flame-retardant product on the market, and the halogen-free flame-retardant product can further meet the requirement of lower hardness of a client;
(3) the product passes SGS detection, and halogen-free flame retardant grade can reach UL94V 0.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below.
In example 1 provided by the invention, a low-hardness low-smoke halogen-free flame-retardant hydrogenated nitrile rubber sealing element passing the flame-retardant rating of UL94V0 comprises the following raw materials in parts by weight: 100 parts of hydrogenated nitrile rubber, 5 parts of zinc oxide, 1.5 parts of stearic acid, 2 parts of a dispersing agent, 6 parts of carbon black, 70 parts of modified aluminum hydroxide, 12 parts of F2 red phosphorus, 10 parts of zinc borate, 34 parts of aliphatic phosphate, 1 part of a vulcanizing agent and 4 parts of a vulcanizing aid.
Wherein the hydrogenated nitrile rubber is Therban LT2157 provided by Arlucinoceae, and the acetonitrile content is 21%; the carbon black is an N774 model provided by cabot, the modified aluminum hydroxide is a 03A model provided by diligent Tong, the red phosphorus is an F2 model provided by diligent Tong, the aliphatic phosphate is a D950 model provided by diligent Tong, and the zinc borate is provided by golden Changsheng.
A formula and a production process of a hydrogenated nitrile rubber sealing element with low hardness, low smoke, zero halogen and flame retardant rating of UL94V0 comprise the following steps:
step 1: adding hydrogenated nitrile rubber into an internal mixer, and keeping the pressure of the internal mixer at 0.7 mpa; plasticating 120S, and adding zinc oxide, stearic acid, a dispersing agent, carbon black, modified aluminum hydroxide serving as a flame retardant, red phosphorus, zinc borate and aliphatic phosphate; pressurizing and mixing for the first time to 85-100 ℃, and turning; pressurizing and mixing for the second time to 90-115 ℃, and turning; pressurizing and mixing for the third time to 100-120 ℃, adjusting the roller spacing of an internal mixer to the film thickness of 1mm, and thinning the rubber; adjusting the roller spacing of the internal mixer to 6mm of the thickness of the rubber sheet, discharging to obtain rubber material A, and standing the rubber material A for more than 8 hours;
step 2: putting the rubber material A into an open mill, adjusting the initial roller temperature of the open mill to be less than or equal to 45 ℃, adjusting the roller distance of the open mill to be 0.9mm of the thickness of the rubber sheet, and softening the rubber sheet after the rubber sheet is too thin; adjusting the roll spacing of the open mill to 4-6mm of the thickness of the rubber sheet, and wrapping the rubber material A by a roll;
and step 3: adjusting the temperature of the open mill to 60-70 ℃; adding a vulcanizing agent into the edge of the roller for a few times, and turning for 2 times; adding a small amount of vulcanization auxiliary agent into the edge of the roller for multiple times, and making a thick triangular bag for 5 times; adjusting the roll gap of the open mill to the thickness of the rubber sheet of 0.8mm, thinning the rubber sheet, packaging the rubber sheet for 3 times, and discharging to obtain a rubber material B;
and 4, step 4: adjusting the temperature of the mold to 160-170 ℃, putting the rubber material B into the mold, closing the mold and vulcanizing, and taking out a semi-finished product;
and 5: and adjusting the temperature of the oven to 130-150 ℃, putting the semi-finished product into the oven, heating the oven for 3-6h, and taking out to obtain the rubber sealing element.
The raw materials do not contain halogen, the modified aluminum hydroxide, the red phosphorus, the zinc borate and the aliphatic phosphate ester are all flame retardants, wherein the modified aluminum hydroxide is a high-efficiency flame retardant and HAs a smoke abatement effect, the zinc borate can promote char formation, the aliphatic phosphate ester can be used as a flame retardant and a plasticizer simultaneously, the formula hardness is effectively reduced, the aliphatic phosphate ester and other flame retardants cooperatively react to achieve a flame retardant effect, the flame retardant grade reaches UL94V0, and the product hardness is as low as 42 HA.
The following table shows the results of the performance tests of the examples:
from the above table the following results can be obtained:
(1) the hardness of the product of the embodiment is 42HA, halogen-free requirements are met, and the flame retardance meets the UL94V0 grade.
(2) The physical and mechanical properties, aging property, pressure change and other properties of the product meet the standard requirements of the sealing element.
(3) All raw materials of the product are commercially available materials, and the requirement of batch production can be met.
The following table shows the results of SGS detection.
The table shows that the sealing element of the invention has good flame retardant effect, and the flame retardant meets the UL94V0 grade.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (4)
1. The low-hardness low-smoke halogen-free hydrogenated nitrile rubber is characterized by comprising the following raw materials in parts by weight: 100 parts of hydrogenated nitrile rubber, 1-8 parts of zinc oxide, 0.5-2 parts of stearic acid, 0.5-4 parts of a dispersing agent, 2-15 parts of carbon black, 50-90 parts of modified aluminum hydroxide, 5-15 parts of red phosphorus, 5-15 parts of zinc borate, 20-40 parts of aliphatic phosphate, 1-5 parts of a vulcanizing agent and 2-6 parts of a vulcanizing aid.
2. A low hardness low smoke halogen-free hydrogenated nitrile rubber according to claim 1, wherein: the hydrogenated nitrile rubber is a Therban LT2157 model provided by Arlucinoceae, and the acetonitrile content is 21%; the carbon black is an N774 model provided by cabot, the modified aluminum hydroxide is a 03A model provided by diligent Tong, the red phosphorus is an F2 model provided by diligent Tong, the aliphatic phosphate is a D950 model provided by diligent Tong, and the zinc borate is provided by golden Chang.
3. A process for producing a low hardness low smoke halogen-free hydrogenated nitrile rubber, for producing a low hardness low smoke halogen-free hydrogenated nitrile rubber according to any of claims 1-2, characterized in that: the method comprises the following steps:
step 1: adding hydrogenated nitrile rubber into an internal mixer, and keeping the pressure of the internal mixer at 0.7 mpa; plasticating 120S, and adding zinc oxide, stearic acid, a dispersing agent, carbon black, modified aluminum hydroxide serving as a flame retardant, red phosphorus, zinc borate and aliphatic phosphate; pressurizing and mixing for the first time to 85-100 ℃, and turning; pressurizing and mixing for the second time to 90-115 ℃, and turning; pressurizing and mixing for the third time to 100-120 ℃, adjusting the roller spacing of an internal mixer to the film thickness of 1mm, and thinning the rubber; adjusting the roller spacing of the internal mixer to 6mm of the thickness of the rubber sheet, discharging to obtain rubber material A, and standing the rubber material A for more than 8 hours;
step 2: putting the rubber material A into an open mill, adjusting the initial roller temperature of the open mill to be less than or equal to 45 ℃, adjusting the roller distance of the open mill to be 0.9mm of the thickness of the rubber sheet, and softening the rubber sheet after the rubber sheet is too thin; adjusting the roll spacing of the open mill to 4-6mm of the thickness of the rubber sheet, and wrapping the rubber material A by a roll;
and step 3: adjusting the temperature of the open mill to 60-70 ℃; adding a vulcanizing agent into the edge of the roller for a few times, and turning for 2 times; adding a small amount of vulcanization auxiliary agent into the edge of the roller for multiple times, and making a thick triangular bag for 5 times; adjusting the roll gap of the open mill to the thickness of the rubber sheet of 0.8mm, thinning the rubber sheet, packaging the rubber sheet for 3 times, and discharging to obtain a rubber material B;
and 4, step 4: adjusting the temperature of the mold to 160-170 ℃, putting the rubber material B into the mold, closing the mold and vulcanizing, and taking out a semi-finished product;
and 5: and adjusting the temperature of the oven to 130-150 ℃, putting the semi-finished product into the oven, heating the oven for 3-6h, and taking out to obtain the rubber product.
4. A rubber seal characterized by: the low-hardness low-smoke halogen-free hydrogenated nitrile rubber is prepared by the production process of the low-hardness low-smoke halogen-free hydrogenated nitrile rubber as claimed in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030094.6A CN111171420A (en) | 2019-10-28 | 2019-10-28 | Low-hardness low-smoke halogen-free hydrogenated nitrile rubber, production process thereof and rubber sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030094.6A CN111171420A (en) | 2019-10-28 | 2019-10-28 | Low-hardness low-smoke halogen-free hydrogenated nitrile rubber, production process thereof and rubber sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111171420A true CN111171420A (en) | 2020-05-19 |
Family
ID=70650080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911030094.6A Pending CN111171420A (en) | 2019-10-28 | 2019-10-28 | Low-hardness low-smoke halogen-free hydrogenated nitrile rubber, production process thereof and rubber sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111171420A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174119A (en) * | 2021-04-16 | 2021-07-27 | 和峻（广州）胶管有限公司 | Halogen-free flame-retardant insulating rubber hose material composition |
| CN114316399A (en) * | 2021-12-01 | 2022-04-12 | 杭州爱力智控技术有限公司 | Cold-resistant hydrogenated nitrile rubber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483676A (en) * | 2013-09-29 | 2014-01-01 | 江苏理工学院 | Halogen-free flame retardant LLDPE (linear low density polyethylene) material and preparation method thereof |
| CN103613831A (en) * | 2013-10-15 | 2014-03-05 | 昆山市奋发绝缘材料有限公司 | Nanometer environmental-protection halogen-free fire-retardation insulation material and preparation method thereof |
| CN103724810A (en) * | 2013-12-31 | 2014-04-16 | 广东三凌塑料管材有限公司 | Polypropylene cable protective sleeve |
-
2019
- 2019-10-28 CN CN201911030094.6A patent/CN111171420A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483676A (en) * | 2013-09-29 | 2014-01-01 | 江苏理工学院 | Halogen-free flame retardant LLDPE (linear low density polyethylene) material and preparation method thereof |
| CN103613831A (en) * | 2013-10-15 | 2014-03-05 | 昆山市奋发绝缘材料有限公司 | Nanometer environmental-protection halogen-free fire-retardation insulation material and preparation method thereof |
| CN103724810A (en) * | 2013-12-31 | 2014-04-16 | 广东三凌塑料管材有限公司 | Polypropylene cable protective sleeve |
Non-Patent Citations (3)
| Title |
|---|
| 李文红: ""氢化丁腈橡胶与乙烯醋酸乙烯酯橡胶的低烟雾无腐蚀、阻燃电缆护套"", 《橡胶译丛》 * |
| 橡胶工业原材料与装备简明手册编审委员会: "《橡胶工业原材料与装备简明手册》", 31 December 2016, 北京理工学出版社 * |
| 欧育湘: "《阻燃剂》", 30 September 2009, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174119A (en) * | 2021-04-16 | 2021-07-27 | 和峻（广州）胶管有限公司 | Halogen-free flame-retardant insulating rubber hose material composition |
| CN114316399A (en) * | 2021-12-01 | 2022-04-12 | 杭州爱力智控技术有限公司 | Cold-resistant hydrogenated nitrile rubber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104558868B (en) | Preparation method of corrosion-resistant flame-retardant cable rubber material | |
| CN111171420A (en) | Low-hardness low-smoke halogen-free hydrogenated nitrile rubber, production process thereof and rubber sealing element | |
| CN101250290A (en) | Thermostable, flame-resistant and oil-proof rubber sizing material and production method thereof | |
| CN107216542B (en) | Halogen-free flame-retardant polypropylene material | |
| DE112007003427T5 (en) | Refractory copolymer and flame retardant thermoplastic composition using the same | |
| CN102875893A (en) | Thermoplastic fire retardant plastic | |
| CN115058093B (en) | Environment-friendly PVC plastic film and production process thereof | |
| CN103724847B (en) | A kind of graphite rubber and plastic composite flame-proof material | |
| CN110643165A (en) | High-performance ultraviolet-resistant environment-friendly flame-retardant PC/ABS composite material and preparation method thereof | |
| CN112940362A (en) | High-temperature-resistant and hot-oil-resistant nitrile rubber material and preparation method thereof | |
| CN112321955A (en) | Environment-friendly flame-retardant insulating rubber composite material and preparation method thereof | |
| CN110791074A (en) | Halogen-free flame-retardant PC/ABS alloy material and preparation method thereof | |
| CN109851976A (en) | Modified TPE fire-resistant cable material of a kind of Halogen and preparation method thereof | |
| CN112194824B (en) | Anti-aging composition and BOPP film | |
| CN106147191B (en) | A kind of high fire-retardance rank Halogen polycarbonate film material and preparation method thereof | |
| CN110499015B (en) | Halogen-free flame-retardant PPO/HIPS alloy material with high CTI and high GWIT and preparation method thereof | |
| CN110982269A (en) | Anti-aging sealing rubber strip for building doors and windows and preparation method thereof | |
| CN103772967B (en) | Composite plastic of a kind of flame-resistant high-temperature-resistant and preparation method thereof | |
| CN108929498B (en) | Polyamino cyclotriphosphazene synergistic flame-retardant smoke-suppressing PVC and preparation method thereof | |
| CN114230941A (en) | Heat stabilizer for processing soft transparent PVC and preparation method thereof | |
| WO2022001016A1 (en) | Flame-retardant abs composition and preparation method therefor | |
| CN109988348B (en) | Oil-resistant and high-temperature-resistant rubber material and preparation method and application thereof | |
| CN109021912B (en) | Environment-friendly sealant for airplane and preparation method thereof | |
| JP2000044757A (en) | Vulcanizable rubber composition for seal and seal | |
| CN107629288B (en) | Polyethylene/metal hydroxide/ketjen black flame-retardant material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |
|
| RJ01 | Rejection of invention patent application after publication |