CN107141532A - Without asbestos seal gasket and preparation method thereof - Google Patents
Without asbestos seal gasket and preparation method thereof Download PDFInfo
- Publication number
- CN107141532A CN107141532A CN201710409530.5A CN201710409530A CN107141532A CN 107141532 A CN107141532 A CN 107141532A CN 201710409530 A CN201710409530 A CN 201710409530A CN 107141532 A CN107141532 A CN 107141532A
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- CN
- China
- Prior art keywords
- seal gasket
- asbestos seal
- raw material
- banburying
- preparation
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses one kind without asbestos seal gasket and preparation method thereof, this includes following raw material components without asbestos seal gasket, percentage:NBR 10 26%, aramid fiber 5 20%, white carbon 5 15%, molding powder 5 15%, fine particle calcium carbonate 10 20%, mica powder 12 20%, barium sulfate 10 20%, age resistor 1 5%, vulcanizing agent 1 5%.The present invention has good sealing property, high temperature resistant, tensile strength without asbestos seal gasket and crushing resistance is strong, resilience is high.
Description
Technical field
The invention belongs to chemical material technical field, more particularly, to one kind without asbestos seal gasket and its preparation side
Method.
Background technology
Encapsulant is plant equipment, device and the indispensable part of pipeline junction.Tradition without asbestos board pad, because including fiber with
There is micro space between rubber, tissue is loose, and density is not high, and compression strength is relatively low.In use due to have micropore and
Resilience is not enough, easily causes leakage, and on the other hand tradition often uses benzene as molten without asbestos board pad during manufacturing
Agent, the problems such as certain harm being caused to producers and environment.
The content of the invention
For problems of the prior art, it is an object of the invention to provide one kind without asbestos seal gasket and its system
Preparation Method, this has good sealing property, high temperature resistant, tensile strength without asbestos seal gasket and crushing resistance is strong, resilience is high.
To achieve the above object, one kind of the invention is without asbestos seal gasket, and percentage includes following raw material
Component:
Present invention also offers a kind of preparation method without asbestos seal gasket, comprise the following steps successively:It is batch mixing, close
Refining, rolling slice, molding sulfidization molding;In the rolling slice step, vulcanizing agent is added simultaneously in the raw material after banburying
Flaky material is rolled into mill;In the molding sulfidization molding step, by the flaky material in vulcanizing press mould
185-200 DEG C is heated in tool, pressurize 10-15MPa, hot-press solidifying 3-5 minutes makes the rubber component in material be solidified by rubber
To produce no asbestos seal gasket after ripe glue.
The beneficial effects of the present invention are:
(1) it is of the invention without asbestos seal gasket with nitrile rubber (NBR) for adhesive substrate, aramid fiber is grain skeleton
Material, the gap in aramid fiber and rubber is filled using precipitated calcium carbonate, mica powder, and pass through certain moduli pressure as inserts
Sulfidization molding technique is made, with good sealing property, high temperature resistant, and tensile strength and crushing resistance are strong, and resilience is high, applicable for temperature
Spend for≤350 DEG C, pressure≤10.0MPa.
(2) banburying process is rotated using high speed centrifugation, the aramid fiber in sizing material can be made to be uniformly dispersed, not lump, fully
With rubber adhesion, the present invention instead of traditional handicraft using banburying process to carry out immersion swelling treatment with solvent " benzene ", simply
Effectively, while reducing environmental pollution and the injury to producers.
(3) traditional rolling process is replaced to produce with plane mould die pressing, compared with rolling technology, the material thickness being made
Uniformity tolerances are small, while pressure is balanced, product quality stabilization, precision height, the standardization level of production are high.
Embodiment
With reference to specific embodiment, the present invention will be described in detail, and the description of this part is only exemplary and explained
Property, there should not be any restriction effect to protection scope of the present invention.
One kind of the present invention includes the raw material components of following parts by weight without asbestos seal gasket:
Preferably, no asbestos seal gasket, percentage includes following raw material components:
A kind of preparation method as described above without asbestos seal gasket, comprises the following steps successively:Batch mixing, banburying, rolling
Extrude piece, molding sulfidization molding;In the rolling slice step, vulcanizing agent is added in the raw material after banburying and in mill
Flaky material is rolled into machine;In the molding sulfidization molding step, by the flaky material in plate vulcanization machine die plus
Heat arrives 185-200 DEG C, and pressurize 10-15MPa, and hot-press solidifying 3-5 minutes makes the rubber component in material be cured as ripe glue by rubber
After produce no asbestos seal gasket.
Embodiment 1:Without asbestos seal gasket
The raw material of the present embodiment is constituted:
The preparation method without asbestos seal gasket is:
(1) each component raw material is measured by formula;
(2) batch mixing:By each component raw material measured, all input is mixed 5 minutes into batch mixer, and is stirred;
(3) banburying:Raw material after batch mixing is put into banbury, at a high speed rotation banburying, by the aramid fiber in raw material
With rubber adhesion;
(4) slice is rolled:Material after banburying is put into mill, and is put into vulcanizing agent simultaneously, is rolled in mill
Extrude flaky material;
(5) it is molded sulfidization molding:Flaky material is delivered and is heated to 185 DEG C into plate vulcanization machine die, is forced into
15MPa, hot-press solidifying 5 minutes makes the rubber component in material turn into ripe adhesive curing by rubber, then takes out plate trimming for forming
Produce no asbestos seal gasket.
Embodiment 2:Without asbestos seal gasket
The raw material of the present embodiment is constituted:
The preparation method without asbestos seal gasket is:Be the same as Example 1, difference is:It is molded the bar of sulfidization molding
Part is 200 DEG C of temperature, is forced into 10MPa, hot-press solidifying 3 minutes.
Embodiment 3:Without asbestos seal gasket
The raw material of the present embodiment is constituted:
The preparation method without asbestos seal gasket is:Be the same as Example 1.Embodiment 4:Without asbestos seal gasket
The raw material of the present embodiment is constituted:
The preparation method without asbestos seal gasket is:Be the same as Example 1.
Embodiment 5:Without asbestos seal gasket
The raw material of the present embodiment is constituted:
The preparation method without asbestos seal gasket is:Be the same as Example 1.
Embodiment 1-5 is subjected to tensile property, compression ratio without asbestos seal gasket respectively, returned
Bullet rate, load-carrying compressive property etc. are tested, and its result data is as shown in table 1:
Table 1
Described above is only presently preferred embodiments of the present invention, not to the technology model of the present invention
Enclose and make any limitation, therefore any trickle repairing of being made to above example of every technical spirit according to the present invention
Change, equivalent variations and modification, still fall within the range of technical scheme.
Claims (3)
1. one kind is without asbestos seal gasket, it is characterised in that percentage includes following raw material components:
2. as claimed in claim 1 without asbestos seal gasket, it is characterised in that percentage includes following raw material group
Point:
3. a kind of preparation method without asbestos seal gasket as described in claim any one of 1-2, it is characterised in that wrap successively
Include following steps:Batch mixing, banburying, rolling slice, molding sulfidization molding;In the banburying step, high speed centrifugation is carried out to batch mixing
Rotate banburying;In the rolling slice step, vulcanizing agent is added in the raw material after banburying and is rolled into mill
Flaky material;In the molding sulfidization molding step, by the flaky material in being heated to 185-200 in plate vulcanization machine die
DEG C, pressurize 10-15MPa, and hot-press solidifying 3-5 minutes makes the rubber component in material be cured as after ripe glue producing no stone by rubber
Minuteness gasket.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710409530.5A CN107141532A (en) | 2017-06-02 | 2017-06-02 | Without asbestos seal gasket and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710409530.5A CN107141532A (en) | 2017-06-02 | 2017-06-02 | Without asbestos seal gasket and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
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CN107141532A true CN107141532A (en) | 2017-09-08 |
Family
ID=59780406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201710409530.5A Pending CN107141532A (en) | 2017-06-02 | 2017-06-02 | Without asbestos seal gasket and preparation method thereof |
Country Status (1)
Country | Link |
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CN (1) | CN107141532A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109206689A (en) * | 2018-09-11 | 2019-01-15 | 合肥绿普包装材料有限公司 | A kind of preparation method without asbestos washer that low temperature resistant temperature becomes |
CN109369988A (en) * | 2018-10-30 | 2019-02-22 | 江苏赛尔密封科技有限公司 | A kind of high-pressure oil-resistant is without asbestos packing sheet and preparation method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1263903A (en) * | 2000-02-16 | 2000-08-23 | 太仓市宝马密封材料有限公司 | Sealing elastomer material reinforced by non-asbestos fibres and technology for compressing it into plates |
CN101003719A (en) * | 2006-11-14 | 2007-07-25 | 南京工业大学 | Hybrid fiber reinforced rubber-based sealing composite material and preparation process thereof |
CN103146346A (en) * | 2013-03-27 | 2013-06-12 | 中国科学院长春应用化学研究所 | Non-asbestos static seal material and preparation method thereof |
CN105237841A (en) * | 2014-07-11 | 2016-01-13 | 上海赋瑞密封材料有限公司 | Non-asbestos sealing sheet material capable of resisting refrigerant and preparation method thereof |
CN105524389A (en) * | 2015-12-29 | 2016-04-27 | 慈溪卡希尔密封材料有限公司 | An asbestos-free fiber compressed plate and a preparing method thereof |
-
2017
- 2017-06-02 CN CN201710409530.5A patent/CN107141532A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1263903A (en) * | 2000-02-16 | 2000-08-23 | 太仓市宝马密封材料有限公司 | Sealing elastomer material reinforced by non-asbestos fibres and technology for compressing it into plates |
CN101003719A (en) * | 2006-11-14 | 2007-07-25 | 南京工业大学 | Hybrid fiber reinforced rubber-based sealing composite material and preparation process thereof |
CN103146346A (en) * | 2013-03-27 | 2013-06-12 | 中国科学院长春应用化学研究所 | Non-asbestos static seal material and preparation method thereof |
CN105237841A (en) * | 2014-07-11 | 2016-01-13 | 上海赋瑞密封材料有限公司 | Non-asbestos sealing sheet material capable of resisting refrigerant and preparation method thereof |
CN105524389A (en) * | 2015-12-29 | 2016-04-27 | 慈溪卡希尔密封材料有限公司 | An asbestos-free fiber compressed plate and a preparing method thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109206689A (en) * | 2018-09-11 | 2019-01-15 | 合肥绿普包装材料有限公司 | A kind of preparation method without asbestos washer that low temperature resistant temperature becomes |
CN109369988A (en) * | 2018-10-30 | 2019-02-22 | 江苏赛尔密封科技有限公司 | A kind of high-pressure oil-resistant is without asbestos packing sheet and preparation method thereof |
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PB01 | Publication | ||
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RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170908 |