CN108517055A - Nylon fiber base rubber composite material and preparation method thereof - Google Patents

Nylon fiber base rubber composite material and preparation method thereof Download PDF

Info

Publication number
CN108517055A
CN108517055A CN201810412310.2A CN201810412310A CN108517055A CN 108517055 A CN108517055 A CN 108517055A CN 201810412310 A CN201810412310 A CN 201810412310A CN 108517055 A CN108517055 A CN 108517055A
Authority
CN
China
Prior art keywords
nylon fiber
parts
polyvinyl alcohol
composite material
rubber
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
Application number
CN201810412310.2A
Other languages
Chinese (zh)
Inventor
朱凉伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu General Science Technology Co Ltd
Original Assignee
Jiangsu General Science Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu General Science Technology Co Ltd filed Critical Jiangsu General Science Technology Co Ltd
Priority to CN201810412310.2A priority Critical patent/CN108517055A/en
Publication of CN108517055A publication Critical patent/CN108517055A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00Compositions of natural rubber
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L11/00Compositions of homopolymers or copolymers of chloroprene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06Copolymers with styrene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/14Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16Fibres; Fibrils

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a kind of nylon fiber base rubber composite materials and preparation method thereof, belong to rubber composite material technical field.It prepares poly-vinyl alcohol solution first, and nylon fiber is then added and carries out ultrasonic disperse, and preparation prepares nylon fiber polyvinyl alcohol compound, and material is then added and is kneaded, sizing material compound is obtained, last to refine to obtain nylon fiber base rubber composite material eventually.Present invention process is simple, can significantly improve dispersibility of the nylon fiber in rubber mixing-milling technique, improve the property indices of rubber.

Description

Nylon fiber base rubber composite material and preparation method thereof
Technical field
The present invention relates to a kind of nylon fiber base rubber composite materials and preparation method thereof, belong to rubber composite material technology Field.
Background technology
Rubber is a kind of important strategic goods and materials, in national economy, new and high technology and national defence because of its unique high resiliency Military industry field has extremely wide application.No matter simple natural rubber or synthetic rubber cannot be satisfied reality whether vulcanization Border use demand.It is generally necessary to which adding filler improves its mechanical performance.
Nylon fiber has important application as reinforcing filler in rubber.The advantages of nylon fiber is that strength is high, resistance to Heat, endurance.The comprehensive performance that nylon fiber is introduced into raising rubber in rubber has been a hot spot of research.Nylon fiber is not only The mechanical performance of rubber can be improved, while its special functionality can be assigned.However, nylon fiber surface is smooth, it is unfavorable for With the bonding of other polymers, the dispersibility in rubber is poor.It is to play Buddhist nun to improve dispersibility of the nylon fiber in rubber Imperial fibre property promotes the key of rubber comprehensive performance.Even to this day, improving dispersibility of the nylon fiber in rubber is always The difficult point of scientific research technical field and industrial circle.
Invention content
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of nylon fiber base rubber composite material and its system Preparation Method.
According to technical solution provided by the invention, nylon fiber base rubber composite material, formula rate is by weight such as Under:100 parts of rubber, 5-10 parts of zinc oxide, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, 0.1-0.4 parts of antiscorching agent.
The rubber is in natural rubber, butadiene rubber, butadiene-styrene rubber, butyl rubber, EP rubbers and neoprene One or more.
The carbon black is one or more in N234, N326 and N375.
The anti-aging agent is antioxidant 4020 and/or anti-aging agent RD.
The accelerating agent is one or more in NOBS, CZ, DZ and NS.
The antiscorching agent is CTP.
The preparation method of the nylon fiber base rubber composite material, steps are as follows by weight:
(1)The preparation of nylon fiber-polyvinyl alcohol compound:
A, polyvinyl alcohol is dissolved in deionized water, the polyvinyl alcohol water solution of a concentration of 1%-10% of configuration quality, is waited for completely molten Silane coupling agent is added after solution, silane coupling agent is the 10%-50% of polyvinyl alcohol quality, obtains poly-vinyl alcohol solution;
B, nylon fiber is added in poly-vinyl alcohol solution obtained by step a, ultrasonic disperse 1-3h is to nylon under 100-800W power Fiber is evenly dispersed, obtains nylon fiber-polyvinyl alcohol dispersion liquid;
C, by nylon fiber-polyvinyl alcohol dispersion liquid at room temperature dry 2 ~ for 24 hours, it is multiple that nylon fiber-polyvinyl alcohol is prepared Close object;
(2)One section of masterbatching:Sequentially add 100 parts of rubber into mixer, nylon fiber -0.1-20 parts of polyvinyl alcohol compound, 0.5-5 parts of polyvinyl butyral, 30-60 parts of carbon black, 5-10 parts of zinc oxide, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, mixing Machine rotor rotating speed is 45-55 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50-140 seconds, and dump temperature is 150-165 DEG C, obtain one section of rubber master batch;
(4)Refining eventually:Step is added into mixer(2)One section of rubber master batch of gained, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, antiscorching agent 0.1-0.4 parts, closed-smelting machine rotor rotating speed is 20-40 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50- 130s, dump temperature are 90-110 DEG C, obtain finished composition.
The silane coupling agent is one or more in KH550, KH560 and KH570.
In the nylon fiber-polyvinyl alcohol compound, the mass ratio of nylon fiber and polyvinyl alcohol is 1:5~50.
Beneficial effects of the present invention:The invention discloses a kind of nylon fiber base rubber composite material and preparation method thereof, The technological operation is simple, is easy to industrial operation.Nylon fiber is scattered in polyvinyl alcohol by the present invention in advance, avoids nylon Fibril aggregation is agglomerating, ensure that nylon fiber is evenly dispersed in sizing material.Polyvinyl alcohol is added in the present invention in rubber compounding On the one hand butyral can interact with nylon fiber-polyvinyl alcohol compound, on the other hand again can be with rubber phase interaction With significantly promoting that nylon fiber is evenly dispersed in sizing material, improve the comprehensive performance of sizing material.
Specific implementation mode
1 a kind of nylon fiber base rubber composite material of embodiment and preparation method thereof, includes the following steps:
(1)The preparation of nylon fiber-polyvinyl alcohol compound:
A, polyvinyl alcohol is dissolved in deionized water, configuration concentration is the polyvinyl alcohol water solution of 1wt%, is added until completely dissolved Enter silane coupling agent, mass fraction is the 10% of polyvinyl alcohol, obtains poly-vinyl alcohol solution;
B, nylon fiber is added in poly-vinyl alcohol solution, ultrasonic disperse 3h is evenly dispersed to nylon fiber under 100W power, obtains To nylon fiber-polyvinyl alcohol dispersion liquid;
C, nylon fiber-polyvinyl alcohol dispersion liquid is dried into 2 h at room temperature, it is compound that nylon fiber-polyvinyl alcohol is prepared The mass ratio of object, nylon fiber and polyvinyl alcohol is 1:5;
(2)One section of masterbatching:100 parts of rubber, nylon fiber -0.1 part of polyvinyl alcohol compound, poly- second are sequentially added into mixer 2 parts of enol butyral, 30 parts of carbon black, 10 parts of zinc oxide, 2 parts of stearic acid, 5 parts of anti-aging agent, closed-smelting machine rotor rotating speed are 50 revs/min Clock, ram piston pressure 0.4MPa, refining glue time are 100 seconds, and dump temperature is 155 DEG C, obtains one section of rubber master batch;
(3)Refining eventually:One section of rubber master batch, 2 parts of sulphur, 2 parts of accelerating agent, 0.1 part of antiscorching agent, closed-smelting machine rotor turn are added into mixer Speed is 40 revs/min, ram piston pressure 0.3MPa, and the refining glue time is 130 seconds, and dump temperature is 90 DEG C, obtains finished composition.
The rubber is natural rubber.The carbon black is N234, N326.The anti-aging agent is antioxidant 4020.It is described Accelerating agent is CZ, DZ.The antiscorching agent is CTP.
2 a kind of nylon fiber base rubber composite material of embodiment and preparation method thereof, includes the following steps:
(1)The preparation of nylon fiber-polyvinyl alcohol compound:
A, polyvinyl alcohol is dissolved in deionized water, configuration concentration is the polyvinyl alcohol water solution of 10 wt%, until completely dissolved Silane coupling agent is added, mass fraction is the 30% of polyvinyl alcohol, obtains poly-vinyl alcohol solution;
B, nylon fiber is added in poly-vinyl alcohol solution, ultrasonic disperse 2h is evenly dispersed to nylon fiber under 400W power, obtains To nylon fiber-polyvinyl alcohol dispersion liquid;
C, nylon fiber-polyvinyl alcohol dispersion liquid is dried into 12h at room temperature, it is compound that nylon fiber-polyvinyl alcohol is prepared The mass ratio of object, nylon fiber and polyvinyl alcohol is 1:50;
(2)One section of masterbatching:100 parts of rubber, nylon fiber -10 parts of polyvinyl alcohol compound, poly- second are sequentially added into mixer 5 parts of enol butyral, 40 parts of carbon black, 7 parts of zinc oxide, 4 parts of stearic acid, 2 parts of anti-aging agent, closed-smelting machine rotor rotating speed are 45 revs/min Clock, ram piston pressure 0.5MPa, refining glue time are 50 seconds, and dump temperature is 165 DEG C, obtains one section of rubber master batch;
(3)Refining eventually:One section of rubber master batch, 6 parts of sulphur, 0.5 part of accelerating agent, 0.4 part of antiscorching agent, closed-smelting machine rotor are added into mixer Rotating speed is 20 revs/min, ram piston pressure 0.4MPa, and the refining glue time is 50 seconds, and dump temperature is 110 DEG C, obtains finished composition.
The rubber is butadiene-styrene rubber.The carbon black is N375.The anti-aging agent is antioxidant 4020 and anti-aging agent RD. The accelerating agent is NS.The antiscorching agent is CTP.
3 a kind of nylon fiber base rubber composite material of embodiment and preparation method thereof, includes the following steps:
(1)The preparation of nylon fiber-polyvinyl alcohol compound:
A, polyvinyl alcohol is dissolved in deionized water, configuration concentration is the polyvinyl alcohol water solution of 5wt%, is added until completely dissolved Enter silane coupling agent, mass fraction is the 50% of polyvinyl alcohol, obtains poly-vinyl alcohol solution;
B, step is added in nylon fiber(1)In poly-vinyl alcohol solution in, 1 h of ultrasonic disperse is to nylon fiber under 800W power It is evenly dispersed, obtain nylon fiber-polyvinyl alcohol dispersion liquid;
C, by nylon fiber-polyvinyl alcohol dispersion liquid, for 24 hours, it is compound that nylon fiber-polyvinyl alcohol is prepared in drying at room temperature The mass ratio of object, nylon fiber and polyvinyl alcohol is 1:25;
(2)One section of masterbatching:100 parts of rubber, nylon fiber -20 parts of polyvinyl alcohol compound, poly- second are sequentially added into mixer 0.5 part of enol butyral, 60 parts of carbon black, 5 parts of zinc oxide, 0.5 part of stearic acid, 1 part of anti-aging agent, closed-smelting machine rotor rotating speed are 55 Rev/min, ram piston pressure 0.3MPa, the refining glue time is 140 seconds, and dump temperature is 150 DEG C, obtains one section of rubber master batch;
(3)Refining eventually:One section of rubber master batch, 3 parts of sulphur, 1 part of accelerating agent, 0.2 part of antiscorching agent, closed-smelting machine rotor turn are added into mixer Speed is 30 revs/min, ram piston pressure 0.5MPa, and the refining glue time is 80 seconds, and dump temperature is 100 DEG C, obtains finished composition.
The rubber is EP rubbers and neoprene.The carbon black is N234.The anti-aging agent is anti-aging agent RD.Institute It is DZ and NS to state accelerating agent.The antiscorching agent is CTP.
Embodiment described above describes the invention in detail.But it is to be understood that, the foregoing is merely Specific embodiments of the present invention are not intended to restrict the invention.All any modifications made in the spirit of the present invention, benefit Fill with equivalent replacement etc., it should be included within the scope of the present invention.

Claims (9)

1. nylon fiber base rubber composite material, it is characterized in that formula rate is as follows by weight:100 parts of rubber, zinc oxide 5-10 parts, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, 0.1-0.4 parts of antiscorching agent.
2. nylon fiber base rubber composite material as described in claim 1, it is characterized in that:The rubber is natural rubber, suitable One or more of buna, butadiene-styrene rubber, butyl rubber, EP rubbers and neoprene.
3. nylon fiber base rubber composite material as described in claim 1, it is characterized in that:The carbon black be N234, N326 and It is one or more in N375.
4. nylon fiber base rubber composite material as described in claim 1, it is characterized in that:The anti-aging agent is antioxidant 4020 And/or anti-aging agent RD.
5. nylon fiber base rubber composite material as described in claim 1, it is characterized in that:The accelerating agent be NOBS, CZ, DZ and It is one or more in NS.
6. nylon fiber base rubber composite material as described in claim 1, it is characterized in that:The antiscorching agent is CTP.
7. the preparation method of nylon fiber base rubber composite material described in claim 1, it is characterized in that step is such as by weight Under:
(1)The preparation of nylon fiber-polyvinyl alcohol compound:
A, polyvinyl alcohol is dissolved in deionized water, the polyvinyl alcohol water solution of a concentration of 1%-10% of configuration quality, is waited for completely molten Silane coupling agent is added after solution, silane coupling agent is the 10%-50% of polyvinyl alcohol quality, obtains poly-vinyl alcohol solution;
B, nylon fiber is added in poly-vinyl alcohol solution obtained by step a, ultrasonic disperse 1-3h is to nylon under 100-800W power Fiber is evenly dispersed, obtains nylon fiber-polyvinyl alcohol dispersion liquid;
C, by nylon fiber-polyvinyl alcohol dispersion liquid at room temperature dry 2 ~ for 24 hours, it is multiple that nylon fiber-polyvinyl alcohol is prepared Close object;
(2)One section of masterbatching:Sequentially add 100 parts of rubber into mixer, nylon fiber -0.1-20 parts of polyvinyl alcohol compound, 0.5-5 parts of polyvinyl butyral, 30-60 parts of carbon black, 5-10 parts of zinc oxide, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, mixing Machine rotor rotating speed is 45-55 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50-140 seconds, and dump temperature is 150-165 DEG C, obtain one section of rubber master batch;
(4)Refining eventually:Step is added into mixer(2)One section of rubber master batch of gained, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, antiscorching agent 0.1-0.4 parts, closed-smelting machine rotor rotating speed is 20-40 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50- 130s, dump temperature are 90-110 DEG C, obtain finished composition.
8. the preparation method of nylon fiber base rubber composite material described in claim 7, it is characterized in that:The silane coupling agent is It is one or more in KH550, KH560 and KH570.
9. the preparation method of nylon fiber base rubber composite material described in claim 7, it is characterized in that:The nylon fiber- In polyvinyl alcohol compound, the mass ratio of nylon fiber and polyvinyl alcohol is 1:5~50.
CN201810412310.2A 2018-05-03 2018-05-03 Nylon fiber base rubber composite material and preparation method thereof Pending CN108517055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810412310.2A CN108517055A (en) 2018-05-03 2018-05-03 Nylon fiber base rubber composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810412310.2A CN108517055A (en) 2018-05-03 2018-05-03 Nylon fiber base rubber composite material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108517055A true CN108517055A (en) 2018-09-11

Family

ID=63430322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810412310.2A Pending CN108517055A (en) 2018-05-03 2018-05-03 Nylon fiber base rubber composite material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108517055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110128714A (en) * 2019-06-06 2019-08-16 江苏通用科技股份有限公司 A kind of aramid fiber short fibre base rubber composite material and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104558708A (en) * 2015-01-19 2015-04-29 南京理工大学 Multifunctional vulcanized rubber containing polyvinylpyrrolidone-modified graphene oxide and preparation method of multifunctional vulcanized rubber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104558708A (en) * 2015-01-19 2015-04-29 南京理工大学 Multifunctional vulcanized rubber containing polyvinylpyrrolidone-modified graphene oxide and preparation method of multifunctional vulcanized rubber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110128714A (en) * 2019-06-06 2019-08-16 江苏通用科技股份有限公司 A kind of aramid fiber short fibre base rubber composite material and preparation method thereof

Similar Documents

Publication Publication Date Title
CN106220996B (en) Silicon carbon black/composite polyolefine material preparation method
CN103555005B (en) Preparation method of modified kaolin used as rubber reinforcing agent
CN105419309A (en) Preparation method of luminescent polyamide composite material
CN102977730B (en) Metal antirust paint treating modified attapulgite as filler, and its preparation method
CN109722022B (en) Extrusion and blow molding grade glass fiber reinforced nylon material and preparation method thereof
CN102199265B (en) Long carbon chain nylon modified phenolic resin and preparation method thereof
CN109971047B (en) Natural rubber-white carbon black composite material and preparation method and application thereof
CN108586836A (en) Carbon fiber-based rubber composite material and preparation method thereof
CN108517055A (en) Nylon fiber base rubber composite material and preparation method thereof
CN106189214A (en) A kind of preparation method of high intensity MC nylon modified fibre composite base material
CN111500038B (en) Low-density SMC sheet and preparation method thereof
CN104692337A (en) Insoluble sulfur capable of improving wear resistance of rubber products and preparation method thereof
CN102675787B (en) Rare earth coupling agent, preparation method and application thereof in treatment of glass fiber reinforced polyformaldehyde composite material
CN108641128A (en) A kind of Fanglun slurry cake base rubber composite material and preparation method thereof
CN111205518A (en) Natural rubber-white carbon black composite material and preparation method and application thereof
CN106243701A (en) A kind of preparation method of high temperature resistant expansion composite environmental-friendly construction substrate
CN108530697A (en) Carbon nanotube base rubber composite material and preparation method thereof
CN105461989A (en) High-performance rubber guide wheel for centerless grinding machine
CN105400181A (en) Preparation method of noctilucent polyamide composite material
CN108641129A (en) Graphene-based rubber composite material and preparation method thereof
CN105440382A (en) High-temperature-resistant and anti-aging regenerated rubber sealing ring and preparing method thereof
CN108641130A (en) A kind of polyester fiber base rubber composite material and preparation method thereof
CN108503905A (en) Graphite oxide alkenyl rubber composite material and preparation method thereof
CN108250648A (en) A kind of nylon blending polyacrylonitrile material
CN110128714A (en) A kind of aramid fiber short fibre base rubber composite 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20180911