Gye sɛ rɔba ahorow kakraa bi a wɔayɛ no, dodow no ara . Nneɛma a wɔde yɛ rɔba a wɔde yɛ nneɛma . , te sɛ Abɔde mu rɔba a ɛyɛ abɔde . , yɛ Nneɛma a ɛtumi hyew anaasɛ ɛtumi hyew . . wɔ nnwuma te sɛ . Ahoɔden Foforo ., Battery nhyehyɛe ahorow . , ne Ɛlektrɔnik mfiri . , wɔde ahwehwɛde a ɛkorɔn a ogya ntumi nhyew no hyɛ rɔba afã horow so, titiriw ma nneɛma te sɛ . Battery a wɔde hyɛ mu . ne Halogen-free ogyaframa-retarant wosow dampers ..

Mprempren, mfiridwuma ho akwan titiriw a wɔfa so ma . Ogya a ɛrehyew a ɛyɛ rɔba nneɛma . fa ka ho:

Sɛ wode ka ho a . Ogya a ɛmma ogya ntumi nhyew . anaasɛ Nneɛma a wɔde hyɛ ogya mu a ogya ntumi nhyew .

Nsakraeɛ a wɔde frafra mu . ne nneɛma a ɛmma ogya ntumi nhyew .

Nsɛm a wɔde ba . Dwumadi akuw a ogya ntumi nhyew . Bere a wɔreyɛ polymer no .

a ɛma ɛyɛ kɛse . Crosslink density . of rɔba nneɛma .

Nkyem ahorow a edidi so yi de nkyekyem ne nkyerɛkyerɛmu tiawa a ɛfa . rubber a ɛmma ogya ntumi nhyew ho mfiridwuma ..

1. Mfiridwuma a ɛmma ogya ntumi nhyew a wɔde yɛ hydrocarbon rɔba .

1.1 Hydrocarbon rɔba no su .

Hydrocarbon rɔba . Nea ɛka ho titiriw ne .:

NR (abɔde mu rɔba) .

SBR (styrene-butadiene rɔba) .

Br (Butadiene rɔba) .

IIR (Butyl rɔba) .

EPR / EPDM (Ethylene propylene rɔba) .

Ɛwom NBR (nitrile rɔba) . no nyɛ hydrocarbon rɔba a wɔtaa de di dwuma, ne . Akwan a wɔfa so sa ogya a ogya ntumi nhyew . no yɛ pɛ na wɔtaa ka ho asɛm wɔ mfiridwuma ho dwumadie mu.

Nneɛma atitiriw a ɛwɔ hydrocarbon rɔba mu no bi ne .:

Oxygen index (LOI) a ɛto ano hye: bɛyɛ. 19–21 na ɛwɔ hɔ.

Ɔhyew a ɛporɔw a ɛyɛ hyew: 200–500°C .

Ogya a ɛmma ogya ntumi nhyew yiye ne ɔhyew a ɛko tia .

awo ntoatoaso a ɛyɛ dodow a ɛdɔɔso . Mframa a ɛtumi hyew bere a ɛrehyew .

Enti, bere a wɔde di dwuma wɔ 1999 mu no. Battery a wɔde hyɛ mu ., Mfiridwuma mu damping pads . , anaasɛ General Vibration Isolation Components . , nsakrae a ogya ntumi nhyew no ho hia.

1.2 Akwan a wɔtaa fa so siw ogyaframa ano a wɔfa so yɛ hydrocarbon rɔba .

(1) polymers a ɛmma ogya ntumi nhyew no frafra .

denam hydrocarbon rɔba a wɔde fra polymer a ogya ntumi nhyew te sɛ .:

Polyvinyl chloride (PVC) .

Polyethylene a wɔde chlorine ayɛ (CPE) .

Chlorossulfonated polyethylene (CSM) .

Ethylene-vinyl acetate (EVA) .

Wobetumi ama ogyaframa a ɛmma ogya ntumi nhyew no atu mpɔn akodu baabi. Bere a wɔrefrafra no, ɛsɛ sɛ wɔde adwene si so titiriw .:

Nneɛma a ɛne ne ho hyia .

Co-crosslinking nhyehyɛe nhyehyɛe .

Wɔtaa de saa kwan yi di dwuma ma . Nneɛma a wɔde yɛ batere a wɔde yɛ nneɛma . anaasɛ Nneɛma a ɛnyɛ nea ɛkɔ soro a ɛma ɛyɛ den sɛ ɛbɛbɔ damping ..

(2) ogyaframa a ɛmma ogya ntumi nhyew (ɔkwan titiriw) a wɔde ka ho .

a wɔde kaa ho no . Ogya a ɛmma ogya ntumi nhyew . yɛ ɔkwan a ɛho hia sen biara a wɔfa so ma ogya a ɛrehyew no yɛ kɛse wɔ hydrocarbon rɔba mu na wobetumi ama atu mpɔn kɛse denam . Nneɛma a wɔde yɛ adwuma bom ..

Organic Halogen-Based Flame Retardants (amammerɛ mu ano aduru) .:

Hexachlorocyclopentadiene a ɛfiri mu ba .

Decabromodiphenyl Ether .

Paraffin a wɔde chlorine ayɛ .

Inorganic synergistic ogyaframa a ɛmma nneɛma nkɔ so nyɛ adwuma .:

Antimony trioxide (SB2O₃) . (wɔtaa de di dwuma) .

Zinc borate .

Aluminium hydroxide .

Ammonium chloride .

⚠ Nsɛm a ɛho hia a wɔakyerɛw .:
Ɛnsɛ sɛ ogyaframa a ɛwɔ halogen so no kura . Halogen a wɔde ma kwa . , anyɛ saa a wobetumi .:

Nneɛma a wɔde yɛ nneɛma ne nkuku a ɛyɛ corrode .

Tew anyinam ahoɔden a wɔde siw nsu ano no so .

Ɛka onyin a ɛko tia nyarewa no wɔ ɔkwan a enye so .

wɔ mu no . Ahoɔden Foforo . ne Ɛlektrɔnik Nnwuma ., Halogen-free ogyaframa-retarant wosow dampers . abɛyɛ ade titiriw, na ɛde apɛde a emu yɛ den aba . Nneɛma a ɛma ogya ntumi nhyew a halogen nnim ..

(3) Nneɛma a ogya ntumi nhyew a ɛnyɛ nkwaboaa a wɔde hyɛ mu a wɔde ka ho .

Nneɛma a wɔde hyɛ nipadua mu a wɔtaa de di dwuma no bi ne .:

Calcium carbonate . .

Kaolin dɔte .

Talc .

Silica a wɔayɛ no nwini .

Aluminium hydroxide .

Saa kwan yi ma ogyaframa a ɛmma ogya ntumi nhyew no tu mpɔn denam .:

a wɔbɛtew so . Nneɛma a ɛwɔ nkwa mu a ɛyɛ hyew .

a wɔde di dwuma . Endothermic porɔw nkɛntɛnso . of fillers .

Nhwɛsoɔ:

Calcium carbonate . . ne Aluminium hydroxide . Fa ɔhyew kɛse twetwe bere a ɛreporɔw no .

Nanso, ɛsɛ sɛ wɔde wɔn adwene si nokwasɛm a ɛyɛ sɛ .:

Filler a wɔde gu mu dodo no so tew . Mfiridwuma mu nneɛma .

Ɛnyɛ nea ɛfata ma . High-elasticity . anaasɛ Nneɛma a ɛma obi wosow a ɛma nsu tɔ kɛse .

(4) rɔba a ɛma ɛyɛ den a ɛkɔ soro .

Nhwehwɛmu ahorow ada no adi sɛ .:

Crosslink density a ɛkorɔn → oxygen index a ɛkorɔn → ogya a ɛrehyew a ɛkɔ soro .

Ɛda adi sɛ saa adwinnade yi ne . Ɔhyew a ɛkɔ soro wɔ ɔhyew a ɛporɔw mu ..

Wɔde saa kwan yi adi dwuma yiye wɔ . EPDM rɔba nhyehyɛe ahorow . na ɛfata ma .:

Battery a wɔde di dwuma wɔ mmeae a ɛhɔ yɛ hyew a ɛwɔ mfinimfini kosi soro .

Nneɛma a wɔde yɛ ogyaframa a ɛyɛ hyew a ɛyɛ rɔba a ɛyɛ mmerɛw .

2. Ogya a ɛrehyew su a ɛwɔ halogen a wɔde rɔba ayɛ mu .

rɔba a wɔde halogen ayɛ . awosu mu nneɛma wɔ halogen nneɛma mu na mpɛn pii no ɛda .:

Oxygen index: 28–45 .

FPM (Fluorubber) Oxygen Index a ɛboro 65 .

Halogen a ɛwɔ mu no dɔɔso . → Ogya a ɛyɛ hyew a ɛyɛ den .

Suban a ɛma obi ho yɛ no hyew wɔ ogya a woyi fi hɔ akyi .

Ne saa nti, ɛnyɛ den koraa sɛ wɔde rɔba a wɔde halogen ayɛ no aduru a ogya ntumi nhyew no, na ɛtaa hwehwɛ sɛ wɔde nneɛma a ɛma ogya ntumi nhyew no hyɛ mu den kakraa bi pɛ.

⚠ Nanso, esiane . Nneɛma a Atwa Yɛn Ho Ahyia Ho Mmara . (te sɛ Rohs . ne DURU ) ne nea ɛrekɔ so wɔ . Ahoɔden ho adwumayɛ foforo ., Ano aduru a halogen nnim . wɔrepɛ wɔn ani agye ho kɛse. Eyi yɛ ade titiriw nti a wɔagye atom kɛse . Halogen-free ogyaframa-retarant wosow dampers ..

3. Mfiridwuma a ɛmma ogya ntumi nhyew a wɔde yɛ heterochain rɔba .

Ɔnanmusifo sen biara . Heterochain rɔba . yɛ:

Dimethyl silicone rɔba (VMQ) .

Ne su atitiriw no bi ne .:

Oxygen index bɛyɛ 25 .

Ɔhyew a ɛporɔw ɔhyew a ɛkɔ soro kodu 400–600°C .

Ɔhyew a ɛkorɔn a ɛkyɛn so a ɛyɛ den .

Silicone rɔba a ogya ntumi nhyew no fa ho titiriw .:

a ɛrekɔ soro . Ɔhyew a ɛma ɔhyew no porɔw .

dodow a ɛkɔ soro wɔ . Residual char akyi decomposition .

a ɛtew no so . Mframa a ɛtumi hyew awo ntoatoasoɔ dodoɔ .

Ne saa nti, . Silicone rɔba . no yɛ nea wɔde di dwuma kɛse wɔ .:

Batere a ɛyɛ hyew kɛse .

Nneɛma a ɛwɔ halogen a ɛyɛ hyew a ɛyɛ den a ɛmma ogya ntumi nhyew mu .

Nneɛma a wɔde bɔ ho ban a ɛma ɛlɛtrɔnik ne ahoɔden foforo yɛ adwuma .

Awie

Nneɛma a ogya ntumi nhyew a wɔayɛ no . Rɔba Nneɛma a Wɔde Yɛ . ɛsɛ sɛ wosusuw ho yiye a egyina . Rɔba a Wɔde Yɛ Adwuma ., we atwa yɛn ho ahyia . , ne Mmara ho ahwehwɛde ahorow ..

ma akwammisa te sɛ .:

Battery a wɔde hyɛ mu .

Halogen-free ogyaframa-retarant wosow dampers .

Wɔkamfo kyerɛ sɛ wɔmfa nni kan .:

Nneɛma a ɛma ogya ntumi nhyew a halogen nnim .

Crosslink density nhyehyɛe a ɛfata .

Ano aduru a ɛkari pɛ wɔ ogyaframa a ɛmma ogya ntumi nhyew ne mfiridwuma mu adwumayɛ ntam .

Gye sɛ rɔba ahorow kakraa bi a wɔayɛ no, dodow no ara . Nneɛma a wɔde yɛ rɔba a wɔde yɛ nneɛma . , te sɛ Abɔde mu rɔba a ɛyɛ abɔde . , yɛ Nneɛma a ɛtumi hyew anaasɛ ɛtumi hyew ..