CN113306257A - Synthetic gasket and production process thereof - Google Patents

Synthetic gasket and production process thereof Download PDF

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Publication number
CN113306257A
CN113306257A CN202110348201.0A CN202110348201A CN113306257A CN 113306257 A CN113306257 A CN 113306257A CN 202110348201 A CN202110348201 A CN 202110348201A CN 113306257 A CN113306257 A CN 113306257A
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CN
China
Prior art keywords
layer
circular
stirring
bubble
cotton
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Application number
CN202110348201.0A
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Chinese (zh)
Inventor
胡家耀
朱一鸣
何鹏彩
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ZHEJIANG HUATAI ELECTRONICS CO LTD
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ZHEJIANG HUATAI ELECTRONICS CO LTD
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Priority to CN202110348201.0A priority Critical patent/CN113306257A/en
Publication of CN113306257A publication Critical patent/CN113306257A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • B32B2553/02—Shock absorbing
    • B32B2553/023—Shock absorbing for use in loose form, e.g. dunnage
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • 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
    • C08K3/04—Carbon

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Material Composition (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

The invention relates to a synthetic gasket, which is characterized in that: the novel PU foam comprises a round PU foam body, wherein the middle part of the round PU foam body is provided with a through hole, one side of the round PU foam body is provided with a connecting layer, and the connecting layer is one of a graphite nylon layer, a red block layer and a polyester layer, and the novel PU foam body has the beneficial effects that: the synthetic gasket of the graphite nylon foam, the polyester foam and the red block foam produced by the method has good noise reduction and shock absorption effects.

Description

Synthetic gasket and production process thereof
Technical Field
The invention belongs to the technical field of gaskets, and particularly relates to a synthetic gasket and a production process thereof.
Background
The existing gasket has poor damping effect in the use process of a micromotor.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme: a composite gasket, comprising: it is cotton including circular PU bubble, circular PU bubble cotton middle part seted up with the through-hole, circular PU bubble cotton one side is equipped with the articulamentum, the articulamentum is one of graphite nylon layer, red piece ba layer, polyester layer.
The invention is further provided with: the utility model discloses a graphite PU foam, including the connecting layer, the connecting layer is graphite nylon layer, the radius on graphite nylon layer is equal with the cotton radius of circular PU bubble, the middle part on graphite nylon layer is seted up with the cotton corresponding trompil of through-hole of circular PU bubble, bond through glue between circular PU bubble cotton and the graphite nylon layer.
The invention is further provided with: the articulamentum is red piece ba layer, the radius on red piece ba layer equals with the cotton radius of circular PU bubble, the middle part on red piece ba layer is seted up with the corresponding trompil of the cotton through-hole of circular PU bubble, bond through glue between cotton and the red piece ba layer of circular PU bubble.
The invention is further provided with: the utility model discloses a PU foam plastic material, including polyester layer, connecting layer, circular PU bubble, the aperture that corresponds with the cotton through-hole of circular PU bubble is seted up at the middle part on polyester layer, the connecting layer is the polyester layer, the radius on polyester layer equals with the cotton radius of circular PU bubble, the corresponding trompil of through-hole with circular PU bubble is seted up at the middle part on polyester layer, bond through glue between circular PU bubble cotton and the polyester layer.
The invention is further provided with: the round PU foam and the graphite nylon layer comprise the following raw materials in percentage by weight: 50-80% of polyol mixture, 15-30% of polyisocyanate, 5-12% of PET, 20-30% of graphite powder and 30-50% of nylon
The invention is further provided with: the round PU foam is prepared from the following raw materials in parts by weight: 70% of polyol mixture, 20% of polyisocyanate and 10% of PET.
The invention is further provided with: the graphite nylon is prepared from the following raw materials in parts by weight: 25% of graphite powder and 40% of nylon.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: stirring: pouring 25% of graphite powder and 40% of nylon into a stirrer B for stirring to obtain graphite nylon;
step four: and (3) drying the graphite nylon obtained in the third step: drying the graphite nylon by a dryer;
step five: extruding the graphite nylon dried in the fourth step: putting the dried graphite nylon into an extruder for extrusion, wherein the drying temperature of the dryer is 60-80 ℃, and the drying time is 2S-3S;
step six: and sticking the extruded graphite nylon and PU foam by using glue. A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the extruded red block bar and the PU foam by glue, wherein the thickness of the red block bar is 0.1cm-1 cm.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the extruded polyester and the PU foam by glue, wherein the thickness of the polyester is 0.1cm-1 cm.
The invention has the beneficial effects that: the synthetic gasket of the graphite nylon foam, the polyester foam and the red block foam produced by the method has good noise reduction and shock absorption effects.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic sectional structure view of a graphite nylon layer of the present invention disposed on a round PU foam;
FIG. 3 is a schematic cross-sectional structure diagram of a red block layer arranged on a round PU foam;
FIG. 4 is a schematic sectional view of the polyester layer of the present invention disposed on a circular PU foam.
Detailed Description
Example 1
According to fig. 1-4, the present embodiment discloses a composite gasket, which is characterized in that: including circular PU bubble cotton 1, circular PU bubble cotton 1's middle part seted up with the through-hole, circular PU bubble cotton 1's one side is equipped with the articulamentum, the articulamentum is one of graphite nylon layer 2, red piece ba layer 3, polyester layer 4.
The invention is further provided with: the articulamentum is graphite nylon layer 2, the radius on graphite nylon layer 2 is equal with the radius of circular PU bubble cotton 1, the corresponding trompil of through-hole with circular PU bubble cotton 1 is seted up at the middle part on graphite nylon layer 2, bond through glue between circular PU bubble cotton 2 and the graphite nylon layer 1.
The invention is further provided with: the articulamentum is red piece ba layer 3, the radius on red piece ba layer 3 equals with the radius that circular PU steeps cotton 1, the corresponding trompil of through-hole with circular PU bubble cotton 1 is seted up at the middle part on red piece ba layer 3, it bonds through glue between cotton 1 of circular PU bubble and the red piece ba layer 3.
The invention is further provided with: the articulamentum is polyester layer 4, the radius on polyester layer 4 equals with the radius of circular PU bubble cotton 1, the corresponding trompil of through-hole with circular PU bubble cotton 1 is seted up at the middle part on polyester layer 4, bond through glue between circular PU bubble cotton 1 and the polyester layer 4.
The invention is further provided with: the round PU foam and the graphite nylon layer comprise the following raw materials in percentage by weight: 50-80% of polyol mixture, 15-30% of polyisocyanate, 5-12% of PET, 20-30% of graphite powder and 30-50% of nylon
The invention is further provided with: the round PU foam is prepared from the following raw materials in parts by weight: 70% of polyol mixture, 20% of polyisocyanate and 10% of PET.
The invention is further provided with: the graphite nylon is prepared from the following raw materials in parts by weight: 25% of graphite powder and 40% of nylon.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: stirring: pouring 25% of graphite powder and 40% of nylon into a stirrer B for stirring to obtain graphite nylon;
step four: and (3) drying the graphite nylon obtained in the third step: drying the graphite nylon by a dryer;
step five: extruding the graphite nylon dried in the fourth step: putting the dried graphite nylon into an extruder for extrusion, wherein the drying temperature of the dryer is 60-80 ℃, and the drying time is 2S-3S;
step six: and sticking the extruded graphite nylon and PU foam by using glue.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the red block bar and the PU foam by glue, wherein the thickness of the red block bar is 0.2 cm.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) adhering the polyester and the PU foam through glue, wherein the thickness of the polyester is 0.1 cm.
Example 2
According to fig. 1-2, the present embodiment discloses a composite gasket, which is characterized in that: it is cotton including circular PU bubble, the cotton middle part of circular PU bubble has been seted up and the through-hole, the cotton one side of circular PU bubble is equipped with graphite nylon layer, the radius on graphite nylon layer equals with the cotton radius of circular PU bubble, the corresponding trompil of through-hole with circular PU bubble is seted up at the middle part on graphite nylon layer, bond through glue between circular PU bubble cotton and the graphite nylon layer.
The invention is further provided with: a composite gasket, comprising: it is cotton including circular PU bubble, circular PU bubble cotton middle part seted up with the through-hole, circular PU bubble cotton one side is equipped with the articulamentum, the articulamentum is one of graphite nylon layer, red piece ba layer, polyester layer.
The invention is further provided with: the utility model discloses a graphite PU foam, including the connecting layer, the connecting layer is graphite nylon layer, the radius on graphite nylon layer is equal with the cotton radius of circular PU bubble, the middle part on graphite nylon layer is seted up with the cotton corresponding trompil of through-hole of circular PU bubble, bond through glue between circular PU bubble cotton and the graphite nylon layer.
The invention is further provided with: the articulamentum is red piece ba layer, the radius on red piece ba layer equals with the cotton radius of circular PU bubble, the middle part on red piece ba layer is seted up with the corresponding trompil of the cotton through-hole of circular PU bubble, bond through glue between cotton and the red piece ba layer of circular PU bubble.
The invention is further provided with: the utility model discloses a PU foam plastic material, including polyester layer, connecting layer, circular PU bubble, the aperture that corresponds with the cotton through-hole of circular PU bubble is seted up at the middle part on polyester layer, the connecting layer is the polyester layer, the radius on polyester layer equals with the cotton radius of circular PU bubble, the corresponding trompil of through-hole with circular PU bubble is seted up at the middle part on polyester layer, bond through glue between circular PU bubble cotton and the polyester layer.
The invention is further provided with: the round PU foam and the graphite nylon layer comprise the following raw materials in percentage by weight: 50-80% of polyol mixture, 15-30% of polyisocyanate, 5-12% of PET, 20-30% of graphite powder and 30-50% of nylon
The invention is further provided with: the round PU foam is prepared from the following raw materials in parts by weight: 60% of a polyol mixture, 30% of polyisocyanate and 10% of PET.
The invention is further provided with: the graphite nylon is prepared from the following raw materials in parts by weight: 20% of graphite powder and 45% of nylon.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: and pouring 60% of the polyol mixture, 30% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: stirring: pouring 20% of graphite powder and 45% of nylon into a stirrer B for stirring to obtain graphite nylon;
step four: and (3) drying the graphite nylon obtained in the third step: drying the graphite nylon by a dryer;
step five: extruding the graphite nylon dried in the fourth step: putting the dried graphite nylon into an extruder for extrusion, wherein the drying temperature of the dryer is 60-80 ℃, and the drying time is 2S-3S;
step six: and sticking the extruded graphite nylon and PU foam by using glue.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the extruded red block bar and the PU foam by glue, wherein the thickness of the red block bar is 0.5 cm.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) adhering the polyester and the PU foam by glue, wherein the thickness of the polyester is 0.6 cm.
Example 3
According to fig. 1-2, the present embodiment discloses a composite gasket, which is characterized in that: it is cotton including circular PU bubble, the cotton middle part of circular PU bubble has been seted up and the through-hole, the cotton one side of circular PU bubble is equipped with graphite nylon layer, the radius on graphite nylon layer equals with the cotton radius of circular PU bubble, the corresponding trompil of through-hole with circular PU bubble is seted up at the middle part on graphite nylon layer, bond through glue between circular PU bubble cotton and the graphite nylon layer.
The invention is further provided with: a composite gasket, comprising: it is cotton including circular PU bubble, circular PU bubble cotton middle part seted up with the through-hole, circular PU bubble cotton one side is equipped with the articulamentum, the articulamentum is one of graphite nylon layer, red piece ba layer, polyester layer.
The invention is further provided with: the utility model discloses a graphite PU foam, including the connecting layer, the connecting layer is graphite nylon layer, the radius on graphite nylon layer is equal with the cotton radius of circular PU bubble, the middle part on graphite nylon layer is seted up with the cotton corresponding trompil of through-hole of circular PU bubble, bond through glue between circular PU bubble cotton and the graphite nylon layer.
The invention is further provided with: the articulamentum is red piece ba layer, the radius on red piece ba layer equals with the cotton radius of circular PU bubble, the middle part on red piece ba layer is seted up with the corresponding trompil of the cotton through-hole of circular PU bubble, bond through glue between cotton and the red piece ba layer of circular PU bubble.
The invention is further provided with: the utility model discloses a PU foam plastic material, including polyester layer, connecting layer, circular PU bubble, the aperture that corresponds with the cotton through-hole of circular PU bubble is seted up at the middle part on polyester layer, the connecting layer is the polyester layer, the radius on polyester layer equals with the cotton radius of circular PU bubble, the corresponding trompil of through-hole with circular PU bubble is seted up at the middle part on polyester layer, bond through glue between circular PU bubble cotton and the polyester layer.
The invention is further provided with: the round PU foam and the graphite nylon layer comprise the following raw materials in percentage by weight: 50-80% of polyol mixture, 15-30% of polyisocyanate, 5-12% of PET, 20-30% of graphite powder and 30-50% of nylon
The invention is further provided with: the round PU foam is prepared from the following raw materials in parts by weight: 80% of polyol mixture, 15% of polyisocyanate and 5% of PET.
The invention is further provided with: the graphite nylon is prepared from the following raw materials in parts by weight: 18% of graphite powder and 35% of nylon.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 80% of polyol mixture, 15% of polyisocyanate and 5% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: stirring: pouring 18% of graphite powder and 35% of nylon into a stirrer B for stirring to obtain graphite nylon;
step four: and (3) drying the graphite nylon obtained in the third step: drying the graphite nylon by a dryer;
step five: extruding the graphite nylon dried in the fourth step: putting the dried graphite nylon into an extruder for extrusion, wherein the drying temperature of the dryer is 60-80 ℃, and the drying time is 2S-3S;
step six: and sticking the extruded graphite nylon and PU foam by using glue.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the extruded red block bar and the PU foam by glue, wherein the thickness of the red block bar is 0.17 cm.
A method of producing a composite gasket, comprising: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) adhering the polyester and the PU foam by glue, wherein the thickness of the polyester is 0.8 cm.
The different formulations of the graphite nylon of examples 1 to 3 above were added to different foam formulations in comparison as shown in the table below.
Figure BDA0003001494110000101
A comparison of different thicknesses of the bars of examples 1 to 3 above added to the foam formulations is shown in the following table.
Figure BDA0003001494110000102
Figure BDA0003001494110000111
A comparison of different thicknesses of the bars of examples 1 to 3 above added to the foam formulations is shown in the following table.
Example 1 Example 2 Example 3
Polyol mixtures 70％ 70％ 70％
Polyisocyanate 20％ 20％ 20％
PET 10％ 10％ 10％
Polyester 0.1 0.6 0.8
Product effect Damping difference Poor shock absorption Good shock absorption
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any modifications, modifications or equivalents made by those skilled in the art based on the above description are within the scope of the present invention.

Claims (10)

1. A composite gasket, comprising: it is cotton including circular PU bubble, circular PU bubble cotton middle part seted up with the through-hole, circular PU bubble cotton one side is equipped with the articulamentum, the articulamentum is one of graphite nylon layer, red piece ba layer, polyester layer.
2. A composite gasket according to claim 1, wherein: the utility model discloses a graphite PU foam, including the connecting layer, the connecting layer is graphite nylon layer, the radius on graphite nylon layer is equal with the cotton radius of circular PU bubble, the middle part on graphite nylon layer is seted up with the cotton corresponding trompil of through-hole of circular PU bubble, bond through glue between circular PU bubble cotton and the graphite nylon layer.
3. A composite gasket according to claim 1, wherein: the articulamentum is red piece ba layer, the radius on red piece ba layer equals with the cotton radius of circular PU bubble, the middle part on red piece ba layer is seted up with the corresponding trompil of the cotton through-hole of circular PU bubble, bond through glue between cotton and the red piece ba layer of circular PU bubble.
4. A composite gasket according to claim 1, wherein: the utility model discloses a PU foam plastic material, including polyester layer, connecting layer, circular PU bubble, the aperture that corresponds with the cotton through-hole of circular PU bubble is seted up at the middle part on polyester layer, the connecting layer is the polyester layer, the radius on polyester layer equals with the cotton radius of circular PU bubble, the corresponding trompil of through-hole with circular PU bubble is seted up at the middle part on polyester layer, bond through glue between circular PU bubble cotton and the polyester layer.
5. A composite gasket according to claim 1, wherein: the round PU foam and the graphite nylon layer comprise the following raw materials in percentage by weight: 50-80% of polyol mixture, 15-30% of polyisocyanate, 12% of PET5, 20-30% of graphite powder and 30-50% of nylon.
6. The composite gasket of claim 5 wherein: the round PU foam is prepared from the following raw materials in parts by weight: 70% of polyol mixture, 20% of polyisocyanate and 10% of PET.
7. The composite gasket of claim 6, wherein: the graphite nylon is prepared from the following raw materials in parts by weight: 25% of graphite powder and 40% of nylon.
8. A method of producing a composite gasket as set forth in claim 2, wherein: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: stirring: pouring 25% of graphite powder and 40% of nylon into a stirrer B for stirring to obtain graphite nylon;
step four: and (3) drying the graphite nylon obtained in the third step: drying the graphite nylon by a dryer;
step five: extruding the graphite nylon dried in the fourth step: putting the dried graphite nylon into an extruder for extrusion, wherein the drying temperature of the dryer is 60-80 ℃, and the drying time is 2S-3S;
step six: and sticking the extruded graphite nylon and PU foam by using glue.
9. The method of producing a composite gasket of claim 5, wherein: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the extruded red block bar and the PU foam by glue, wherein the thickness of the red block bar is 0.1-1 cm.
10. The method of producing a composite gasket of claim 5, wherein: the method comprises the following steps:
the method comprises the following steps: stirring: pouring 70% of the polyol mixture, 20% of polyisocyanate and 10% of PET into a stirrer A for stirring to obtain a material A, wherein the stirring temperature of the stirrer A is 30 ℃, the stirring time is 30 minutes, and the stirring speed is 1300 r/min. (ii) a
Step two: coating the obtained material A by a coating machine to obtain PU foam;
step three: and (3) sticking the extruded polyester and the PU foam by glue, wherein the thickness of the polyester is 0.1cm-1 cm.
CN202110348201.0A 2021-03-31 2021-03-31 Synthetic gasket and production process thereof Pending CN113306257A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2158469Y (en) * 1993-03-27 1994-03-09 南通机床厂 Integral key axle sleeve
CN103951972A (en) * 2014-05-12 2014-07-30 安徽孟凌精密电子有限公司 Corrosion-resistant graphite nylon gasket material
CN104228246A (en) * 2013-06-13 2014-12-24 美国圣戈班性能塑料公司 Foam sealing gasket based on polyurethane dispersion liquid and bonding adhesive tape
CN205291800U (en) * 2015-11-02 2016-06-08 禾蒙国际贸易(上海)有限公司 Cotton substrate of compound bubble
CN206190714U (en) * 2016-08-30 2017-05-24 苏州工业园区高泰电子有限公司 A control unit,
CN210156365U (en) * 2019-08-27 2020-03-17 苏州泰吉诺新材料科技有限公司 A compound heat conduction structure of high-efficient resilience for electronic components

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2158469Y (en) * 1993-03-27 1994-03-09 南通机床厂 Integral key axle sleeve
CN104228246A (en) * 2013-06-13 2014-12-24 美国圣戈班性能塑料公司 Foam sealing gasket based on polyurethane dispersion liquid and bonding adhesive tape
CN103951972A (en) * 2014-05-12 2014-07-30 安徽孟凌精密电子有限公司 Corrosion-resistant graphite nylon gasket material
CN205291800U (en) * 2015-11-02 2016-06-08 禾蒙国际贸易(上海)有限公司 Cotton substrate of compound bubble
CN206190714U (en) * 2016-08-30 2017-05-24 苏州工业园区高泰电子有限公司 A control unit,
CN210156365U (en) * 2019-08-27 2020-03-17 苏州泰吉诺新材料科技有限公司 A compound heat conduction structure of high-efficient resilience for electronic components

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Application publication date: 20210827