Compound Rubbers: Detailed Properties, Advantages, uye Applications

1. FKM Compound (FKM)

Properties:

• Kunyanya kupisa kwekushisa (-20 ° C kusvika +250 ° C).

• Kupokana kwakasarudzika kumafuta, mafuta, zvinonyungudutsa, acids, uye mabhesi.

• High tensile simba (10-20 MPa), low compression set (<15% pa 150 ° C / 70h).

• Flame retardant (UL94 V-0 rating) uye ozone-resistant.

Zvakanakira:

• Pre-yakasanganiswa nemishonga (semuenzaniso, bisphenol AF, peroxide) kuitira vulcanization inoshanda.

• Inochengetedza kugadzikana kwedimensional munzvimbo dzine hukasha dzemakemikari.

• FDA-inoenderana mamakisi anowanikwa kune chikafu / yekurapa kuonana.

Applications:

• Aerospace: Fuel system O-mhete, zvisimbiso zveinjini, uye diaphragms.

• Motokari: Turbocharger gaskets, transmission seals, uye majekiseni emafuta.

• Kemikari: Pombi linings, zvigaro zvevharuvhu, uye hose assemblies.

2. HNBR Compound (HNBR)

Properties:

• Kupisa kupisa kusvika +150 ° C (inopindirana +175 ° C).

• Kunyanya kupikisa mafuta, amines, uye hydraulic fluids.

• High tensile simba (15-35 MPa) uye kuneta kuramba.

• Low permeability kune magasi.

Zvakanakira:

• Pre-vulcanized yekuderedzwa yekugadzirisa nguva.

• Inochengetedza elasticity pasi pekuratidzwa kwenguva refu kune hutsinye media.

• Inowanikwa muperoxide- kana sulfur-cured grade.

Applications:

• Oiri & Gasi: Kuchera mapaketi, madhaka pombi zvisimbiso, uye zvikamu zvetsime.

• Motokari: Mabhandi enguva, majekiseni emafuta, uye turbocharger hoses.

• Indasitiri: Hydraulic cylinder seals uye gearbox zvikamu.

3. NBR Musanganiswa (NBR)

Properties:

• Pakati pemafuta kuramba (zviri nani pane EPDM, isingasviki HNBR).

• Tembiricha yakasiyana: -40°C kusvika +120°C.

• High abrasion resistance (ASTM D5963: 100–200 mm³ kurasikirwa).

• Good resilience uye compression set resistance.

Zvakanakira:

• Inodhura-inoshanda nekuumbwa kwakanakisa.

• Customizable acrylonitrile yemukati (18-50%) yeyakagadzirirwa mafuta kuramba.

Applications:

• Motokari: Mapaipi emafuta, O-mhete, uye zvisimbiso zvekutumira.

• Indasitiri: Mabhandi ekutakurisa, ma roller ekudhinda, uye zvisimbiso zve hydraulic.

• Mutengi: Latex magurovhosi nemidziyo yemitambo.

4. EPDM Compound (Ethylene Propylene Diene Monomer)

Properties:

• Yakasarudzika ozone / yemamiriro ekunze kuramba (5,000+ maawa mukuyedzwa kweQUV).

• Kupisa: -50 ° C kusvika +150 ° C.

• High dielectric simba (20-30 kV/mm) uye kusamira kwemvura.

• Low gasi permeability.

Zvakanakira:

• Pre-yakagadzirwa ne antioxidants uye UV stabilizers.

• Yakanakisa vibration damping (kurasikirwa chinhu: 0.1-0.3).

Applications:

• Motokari: Zvisimbiso zvegonhi, hosi dzeradiyeta, uye mamongi einjini.

• Kuvaka: Mamembrane edenga, mabhandi emadziva, uye gaskets dzemahwindo.

• Electrical: Cable insulation uye mabhandi ekufambisa simba.

5. MPU Compound (MPU)

Properties:

• High tensile simba (20-60 MPa) uye elasticity (kusvika 800% elongation).

• Kusarudzika abrasion kuramba (ASTM D5963: 20-50 mm³ kurasikirwa).

• Tembiricha yemhando: -40 ° C kusvika +100 ° C (kusvika + 120 ° C ine kupisa stabilizers).

• Inopikisa kune solvents uye hydrolysis.

Zvakanakira:

• Customizable kuoma (Shore A 50–95).

• Inowanikwa mu cast, millable, kana thermoplastic mamakisi.

Applications:

• Industrial: Mavhiri, rollers, uye conveyor mabhandi.

• Motokari: Suspension bushings, shock absorbers, uye CV joint boots.

• Kurapa: Catheters, simbi dzemapfupa, uye prosthetics.

6. ACM Compound (ACM)

Properties:

• Kuramba kuchipisa kupisa kusvika +150 ° C (kupindirana +175 ° C).

• Yakanakisa kuramba kune otomatiki transmission fluid (ATF), oiri, uye kupisa.

• Moderate ozone uye kuramba mamiriro ekunze.

• Kusimba kwesimba: 7–15 MPa.

Zvakanakira:

• Pre-yakasanganiswa neamine kana peroxide mishonga yekurapa nekukurumidza.

• Inochengetedza kugadzikana kwedimensional munzvimbo dzeATF.

Applications:

• Motokari: Zvisimbiso zvekutumira, O-mhete, uye madiaphragms epombi.

• Power steering system zvikamu.

• Indasitiri: Pombi zvisimbiso zvemafuta-based media.

7. AEM Compound (AEM)

Properties:

• Wide tembiricha range (-40°C kusvika +150°C).

• Kupokana nemafuta, glycols, uye mamiriro ekunze.

• High tensile simba (10-20 MPa) uye compression set kuramba.

• Low permeability kune magasi.

Zvakanakira:

• Kuenzanisa kupisa kusagadzikana uye kushanduka.

• Inopesana ne hydrolysis uye kuchembera.

• Inowanikwa muperoxide- kana sulfur-cured grade.

Applications:

• Motokari: Radiator hoses, inotonhorera system zvikamu, uye mahosi ekupinda mhepo.

• Indasitiri: Mabhandi ekutakurisa emakemikari ekubata uye madiaphragms epombi.

• HVAC: Duct gaskets uye vibration isolators.