Extruded ụfụfụ: technical àgwà, ọkpụrụkpụ, njupụta, kwes conductivity

Modern ewu ahịa taa na-juru n'ọnụ na a dịgasị iche iche nke-egbochi ihe ihe. Ha na-abụghị nanị ndị e ji mara nke mmepụta technology, ma n'ihi na ya Njirimara, nakwa dị ka oru. Otú ọ dị, otu n'ime ndị kasị ewu ewu bụ extruded ụfụfụ, nke a ga-atụle n'okpuru. Ọ ga-eji ọ bụghị nanị maka thermal mkpuchi, kamakwa iji chebe ụlọ megide mpụga mkpọtụ. Iji melite arụmọrụ nwere ike stacked ihe na ọtụtụ n'ígwé.

nkọwa

EP nwere pụrụ iche thermal mkpuchi àgwà, na ọdịdị yiri a ụfụfụ, nke na-eji taa maka thermal mkpuchi nke facades. Oru nkọwa dị anya gafere na omenala ụfụfụ kwa. Ọ na-mere si polystyrene nsogbu dị iche iche, nke na-gbazee n'okpuru okpomọkụ na-etolite a viscous ala. N'okpuru elu nsogbu na-ulo-pumped carbon ma ọ bụ chlorofluorocarbon, onye ọ bụla nke bụ a-asụ Ụfụfụ n'ụlọnga. Ihe uka na-enwe site na extruder na-akpụ a ụfọdụ udi.

maka ndekọ

Nke a technology na-enye ohere ihe e kere eke nke ihe extruded ụfụfụ nke nwere a mechiri emechi cellular owuwu ma na-eguzogide penetration nke okpomọkụ na mmiri. Ọ bụ eguzogide ọgwụ ike ike gburugburu nke alkaline na acid ụdị, na ọ ga-eji na nnọọ ala okpomọkụ na ike iru -50 Celsius C. Ọ bụrụ na ọ na-abịa ndị kasị elu na o kwere omume okpomọkụ, ọ na-ẹkenịmde ke larịị nke +70 Celsius C.

ihe ọkpụrụkpụ

Ọ bụrụ na ị na-ekpebi ga-azụ otu extruded ụfụfụ, unu mara na ihe bụ nke ya ọkpụrụkpụ. Dị iche iche na ụlọ ọrụ ndị nwere a nhọrọ dị iche, ya mere, ahịa nwere ike ịhụ a efere, malite na 20 mm na-agwụcha na 20 cm. Nke a na-ewelite ajụjụ nke otú ịhọrọ a ọkpụrụkpụ n'ihi na ụfọdụ ọrụ. Iji mee nke a, ị ga-ama ihe thermal eguzogide ihe site na nke na-wuru ihe na mkpa nke mkpuchi ihe.

E nwere ike iwu na ụkpụrụ, nke na-egosi na elu ọnụ okpomọkụ nyefe na-eguzogide na ụfọdụ mpaghara. Ka ihe atụ, na etiti nke Moscow eguzogide mgbidi ga-4.15 m ² ° C / W, ebe a na ọnụ ọgụgụ ga-kacha 2.8 m ² ° C / W maka ebe ndịda mpaghara.

Ozugbo ị chọpụta na ọnụego nke obodo, ga-gbakọọ na-eguzogide nke ihe onwunwe na wepụ ya si norm. Ihe bara uru ga-egosi a na-eguzogide nke polystyrene. Ọ bụrụ na ị nwere ihe ọ bụla results, dị ka table, i nwere ike ikpebi na-chọrọ ọkpụrụkpụ nke mkpuchi ihe.

The njupụta nke ihe

Extruded ụfụfụ onye njupụta bụ site na ọnụ ọgụgụ 28 40 n'arọ / m ^3, anọchi anya akara BSS-S-40. Mgbe ụfọdụ, ndị emeputa na-agbalị iduhie ndị n'ji, n'ihi na mmepụta nke polystyrene ụfụfụ nke nta njupụta ga-ahapụ obere ego. Ya mere, ị ekwesịghị ịdabere naanị na ọnụ ọgụgụ na ika aha, ị ga-ajụ teknuzu e ji mara na a ga-kpọmkwem na akwụkwọ.

Magburu onwe ga-ọ bụrụ na ị na-agwa kpọmkwem otú arụpụtara ihe onwunwe. Ọ bụrụ na ndị njupụta bụ 35 n'arọ / m ^3, ọ na-extruded. Njupụta nwere ike nweta ke mbụ ụzọ, nke bụ elu karịa 17 n'arọ / m ^3.

The thermal conductivity nke EP

The extruded ụfụfụ, na ọkpụrụkpụ nke nke e kwuru n'elu, n'ji ga-họọrọ bụghị nanị na-adabere na nke a data, ma na-ewere n'ime akaụntụ thermal conductivity. Kọwara na edemede mkpuchi - nke a bụ a nnukwu ego nke ikuku egosipụta, nke na-iche site na mkpa shei nke polystyrene. Na nke a, na mmekọrịta bụ dị ka ndị a: 98% ikuku, na 2% polystyrene. N'ihi bụ a siri ike ụfụfụ myirịta. The ikuku nchọ n'ime egosipụta, ruru ka a ihe onwunwe retains okpomọkụ. Air ọdịiche enweghị akpali akpali bụ ihe magburu onwe thermal insulator.

Mgbe e jiri ya tụnyere ịnweta ajị, ya thermal conductivity dị elu. Ọ ga-eme ka ihe ndekọ si 0,028 na 0,034 W / (m · K). The ọzọ na ok ụfụfụ bụ, nke ukwuu uru nke thermal conductivity. N'ihi ya, n'ihi na extruded ụfụfụ onye njupụta bụ 45 n'arọ / m ^3, a uru bụ 0.03 W / (m · K). Ọ ga-iburu n'uche na ihere okpomọkụ ekwesịghị gafere +75 ° C na n'okpuru -50 Celsius C.

Key Njirimara

The extruded ụfụfụ, ihe kwes conductivity nke nke e kwuru n'elu, nwere ụfọdụ e ji mara, gụnyere ihe fọrọ nke nta ezu enweghị mmiri absorption na ala thermal conductivity. Ọbụna ma ọ bụrụ na efere na-kpamkpam mikpuru n'ime mmiri maka ụbọchị 10, mkpụrụ ndụ ga-bụghị uche mmiri mmiri, n'ihi na ha na-dịpụrụ adịpụ, ga-ejupụta na naanị na-emeghe n'akụkụ nke cell. Of okpomọkụ ekenịmde n'elu ya kwa ga-ike kwuru na a nhọrọ bụ ọtụtụ obere tụnyere ndị ọzọ mkpuchi ihe. Plasticity nwekwara adịghị elu, ma na fragility nke nnukwu, karịsịa ma ọ bụrụ na ị na-abịaru a yiri na foamed polystyrene.

The ihe onwunwe nwere ikike na-ekesa ìhè, na ya compressive ike elu nke ọma. Mkpuchi abụghị isiokwu iji ree ure ma nwere nnukwu iguzogide ntu oyi. Extruded ụfụfụ free enyefe mmetụta:

• asịd;
• mmiri;
• caustic alkali;
• mmanụ;
• bleach;
• nnu ngwọta;
• e ji esiji ákwà;
• mmanya;
• hydrocarbon;
• ciment;
• acetylene;
• paraffin;
• propane;
• butane.

Ọ bụghị banyere nwekwara banyere nchekwa maka ụmụ mmadụ.

technical e ji mara

The extruded ụfụfụ, ndị e ji mara nke a na-emezughị kwuru n'elu, nwere ntakiri mmiri absorption, nke àmà site 0,2 ka 0.4%. Ibu bụ ya zuru ezu obere na pụrụ mbio 25 45 n'arọ / m ^3. N'etiti ọghọm nke ogbenye mmiri vepo permeability nwere ike mata, nke bụ 5 ugboro ala dị ka e jiri ya tụnyere ot ụfụfụ. Nke a bara uru bụ 0,013 mg / (h * m * Pa). Nke enwekwu ndị a chọrọ maka ventilashion usoro n'ụlọ, nke ga-ụtọ extruded polystyrene.

The extruded ụfụfụ, nke nkọwa ga-mmasị na n'ji, nwere ọzọ drawback, nke a na-egosipụta na elu flammability. The ihe onwunwe na nkewa dị ka T3-T4, ma taa, ọtụtụ na-emepụta na-eji pụrụ iche nwekwara, nke rụpụtara a fọrọ nke nta ka ndị na-abụghị flammable e ji mara. Ya mere, a mkpuchi nwere ike mgbe ụfọdụ ekewet ọmụmụ G1 na B1.

Otú ọ dị, ọ bụrụ na ị anya n'ime ịdị ọcha norms na iwu, ọ bụ omume na-emesi ya ike na ndị extrusion efere, nke nwere a elu ogo combustibility ike ga-eji na ụlọ chepụtara. Ọ bụrụ na ụlọ ahụ nke chere ihu elu ọkụ nchekwa chọrọ, ọ dị mkpa iji extruded polystyrene, nke bụ ìgwè nke combustibility G3.

ọgwụgwụ

Na nso nso tọhapụrụ gọọmenti etiti iwu na flammable thermal mkpuchi ihe, ọ na e dere data na toxicity nke combustion ngwaahịa. N'ihi na elu-edu polystyrene foams toxicity bụ ihe na-erughị T2, nke na-egosi na mkpuchi bụ moderately ize ndụ. Nke a na ọnụ ọgụgụ bụ pụta ụwa na ihe nke osisi, dị ka parquet. The ọrụ ndụ bụ tụnyere na ọrụ ndụ nke ụlọ, mgbe elu-edu Nsukka, a ọnụ ọgụgụ esịmde isua 40.