{"id":6974,"date":"2024-05-27T01:11:56","date_gmt":"2024-05-27T01:11:56","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6974"},"modified":"2026-08-25T08:50:58","modified_gmt":"2026-08-25T08:50:58","slug":"what-are-the-specific-applications-of-polyurethane-catalysts-in-several-typical-polyurethane-flexible-foams","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/tr\/what-are-the-specific-applications-of-polyurethane-catalysts-in-several-typical-polyurethane-flexible-foams\/","title":{"rendered":"Polyurethane Catalysts for Flexible Foam: Selection Guide"},"content":{"rendered":"

H\u0131zl\u0131 cevap:<\/strong> Flexible polyurethane foam requires a balanced blowing and gelling catalyst package. Catalyst names alone are insufficient: compare cream, rise and gel times together with airflow, density, cell structure, compression set and emissions requirements.<\/p>\n

1\u3001Blok polieter tipi PU yumu\u015fak k\u00f6p\u00fc\u011f\u00fcn tipik form\u00fcl\u00fc ve performans\u0131<\/p>\n

Polieter \u00fc\u00e7l\u00fc alkol 100pbw<\/p>\n

TDI80\/20 46.0pbw<\/p>\n

Organik kalay kataliz\u00f6r\u00fc 0,4pbw<\/p>\n

Tersiyer amin kataliz\u00f6r\u00fc 0,2pbw<\/p>\n

Organosilikon k\u00f6p\u00fck stabilizat\u00f6r\u00fc 1.0pbw<\/p>\n

Su 3,6 pbw<\/p>\n

Yard\u0131mc\u0131 k\u00f6p\u00fcrt\u00fcc\u00fc madde 0~12pbw<\/p>\n

 <\/p>\n

Performans:<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu, kg\/m3 22,4<\/p>\n

\u00c7ekme mukavemeti, kpa 96,3<\/p>\n

Uzama, % 220<\/p>\n

Y\u0131rt\u0131lma mukavemeti, N\/m 385<\/p>\n

S\u0131k\u0131\u015ft\u0131rma seti, 50% 6<\/p>\n

90% 6<\/p>\n

Bo\u015fluk y\u00fck\u00fc, kg<\/p>\n

(38cm\u00d735.6cm\u00d710cm)<\/p>\n

Deformasyon 25% 13,6<\/p>\n

65% 25.6<\/p>\n

Top geri tepmesi, % 38<\/p>\n

 <\/p>\n

Son y\u0131llarda, pazar\u0131n ihtiya\u00e7lar\u0131n\u0131 kar\u015f\u0131lamak i\u00e7in, baz\u0131 i\u015fletmeler d\u00fc\u015f\u00fck yo\u011funluklu (10kg \/ m3) veya daha fazla k\u00f6p\u00fck \u00fcretme e\u011filimindedir, ultra d\u00fc\u015f\u00fck yo\u011funluklu yumu\u015fak k\u00f6p\u00fck \u00fcretiminde, sadece \u015fi\u015firme maddesini ve yard\u0131mc\u0131 \u015fi\u015firme maddesini artt\u0131rmakla kalmaz, ayn\u0131 zamanda i\u015fbirli\u011fi yapmak i\u00e7in nispeten y\u00fcksek bir silikon y\u00fczey aktif madde ve kataliz\u00f6r stabilitesine sahip olmal\u0131d\u0131r.<\/p>\n

 <\/p>\n

D\u00fc\u015f\u00fck yo\u011funluklu ultra d\u00fc\u015f\u00fck yo\u011funluklu yumu\u015fak k\u00f6p\u00fck referans form\u00fcl\u00fc \u00fcretimi:<\/p>\n

 <\/p>\n

\u0130sim Orta yo\u011funluk D\u00fc\u015f\u00fck yo\u011funluk Ultra d\u00fc\u015f\u00fck yo\u011funluk
\nS\u00fcrekli kutu s\u00fcrekli kutu kutu kutu kutu
\nPolieter poliol 100 100 100 100 100
\nSu 3,0 3,0 4,5 5,5 6,6
\nA-33 kataliz\u00f6r 0,2 0,2 0,2 0,2 0,25 0,18
\nSilikon y\u00fczey aktif madde B-8110 1.0 1.2 1.1 1.9 3.8
\nStann\u00f6z oktoat 0,25 0,28 0,35 0,36 0,40
\nK\u00f6p\u00fcrt\u00fcc\u00fc 7,5 7,5 12,5 15,0 34,0
\nTDI80\/20 41.4 44.0 56.0 73.0 103.0
\nYo\u011funluk, kg\/m3 23,0 23,0 16,5 14,0 8,0<\/p>\n

Silindirik k\u00f6p\u00fck form\u00fclasyonu:<\/p>\n

EO\/PO tipi polieter poliol (OH:56) 100pbw<\/p>\n

Su 6,43 pbw<\/p>\n

MC \u015fi\u015firme maddesi 52,5pbw<\/p>\n

Silikon y\u00fczey aktif madde L-628 6.50pbw<\/p>\n

Kataliz\u00f6r A230 0,44pbw<\/p>\n

Stannous octoate D19 0.85pbw<\/p>\n

TDI80\/20 Endeksi 0,99<\/p>\n

Dozaj 139pbw<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu, kg\/m3 7,5<\/p>\n

 <\/p>\n

2\u3001D\u00fc\u015f\u00fck yo\u011funluklu k\u00f6p\u00fck yapmak i\u00e7in s\u0131v\u0131 CO2 yard\u0131mc\u0131 \u015fi\u015firme maddesi<\/p>\n

Polieter \u00fc\u00e7l\u00fc alkol (Mn3000) 100 100<\/p>\n

Su 4,9 5,2<\/p>\n

S\u0131v\u0131 CO2 2,5 3,3<\/p>\n

Silikon y\u00fczey aktif madde L631 1,5 1,75<\/p>\n

B8404<\/p>\n

Amin kataliz\u00f6r\u00fc A133 0,28 0,30<\/p>\n

Stann\u00f6z oktoat 0,14 0,17<\/p>\n

Alev geciktirici DE60F 0 14<\/p>\n

TDI80\/20 Endeksi 110 112<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu, kg\/m3 16 16<\/p>\n

 <\/p>\n

Tipik makine sa\u00e7\u0131 form\u00fclasyonlar\u0131 a\u015fa\u011f\u0131daki gibidir:<\/p>\n

Polieter \u00fc\u00e7l\u00fc alkol (Mn3000) 100pbw<\/p>\n

Su 4.0pbw<\/p>\n

LCO2 4.0~5.5pbw<\/p>\n

Kataliz\u00f6r A33 0,25pbw<\/p>\n

Silikon y\u00fczey aktif madde SC155 1.35pbw<\/p>\n

Stannous octoate D19 0.20pbw<\/p>\n

TDI80\/20 endeksi 110<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu, kg\/m3 14.0~16.5<\/p>\n

 <\/p>\n

3\u3001Full MDI d\u00fc\u015f\u00fck yo\u011funluklu poli\u00fcretan esnek k\u00f6p\u00fck<\/p>\n

Esnek PU kal\u0131planm\u0131\u015f k\u00f6p\u00fck, araba koltuk minderi \u00fcretiminde yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Fiziksel \u00f6zellikleri etkilemeden yo\u011funlu\u011fu azaltmak geli\u015ftirmenin hedefidir.<\/p>\n

Form\u00fclasyon:<\/p>\n

Y\u00fcksek derecede aktif polieter (OH:26~30mgKOH\/g) 80pbw<\/p>\n

Polimer poliol (OH:23~27mgKOH\/g) 20pbw<\/p>\n

\u00c7apraz ba\u011flama maddesi 0~3pbw<\/p>\n

Su 4.0pbw<\/p>\n

Amin kataliz\u00f6r\u00fc A-33 2,8pbw<\/p>\n

Silikon ya\u011f\u0131 y\u00fczey aktif maddesi B8716 1.0pbw<\/p>\n

MDI indeksi 90pbw<\/p>\n

 <\/p>\n

Performans:<\/p>\n

K\u00f6p\u00fck merkez yo\u011funlu\u011fu 34,5 kg\/m3<\/p>\n

Sertlik ILD25% 15.0kg\/314cm2<\/p>\n

Y\u0131rt\u0131lma mukavemeti 0,8 kg\/cm<\/p>\n

\u00c7ekme mukavemeti 1,34 kg\/cm2<\/p>\n

Uzama 120%<\/p>\n

Esneklik 62<\/p>\n

Kal\u0131c\u0131 s\u0131k\u0131\u015ft\u0131rma seti (kuru) 5.0%<\/p>\n

(Islak) 13,5<\/p>\n

 <\/p>\n

4\u3001D\u00fc\u015f\u00fck yo\u011funluklu, tam MDI \u00e7evre dostu araba koltu\u011fu minderleri<\/p>\n

Saf MDI homologu benimsenmi\u015ftir: M50 - yani \u00fcr\u00fcn\u00fcn 4,4'MDI 50% 2,4'MDI 50%, oda s\u0131cakl\u0131\u011f\u0131nda k\u00f6p\u00fcrebilir, ak\u0131\u015fkanl\u0131\u011f\u0131 art\u0131rabilir, \u00fcr\u00fcn\u00fcn yo\u011funlu\u011funu azaltabilir, arac\u0131n a\u011f\u0131rl\u0131\u011f\u0131n\u0131 azaltabilir, \u00e7ok umut verici bir \u00fcr\u00fcnd\u00fcr:<\/p>\n

Form\u00fclasyon:<\/p>\n

Y\u00fcksek derecede aktif polieter poliol (OH:28mgKOH\/g) 95pbw<\/p>\n

310 katk\u0131 maddesi* 5pbw<\/p>\n

Dabco 33LV 0.3pbw<\/p>\n

Dabco 8154 0.7pbw<\/p>\n

Silikon y\u00fczey aktif madde B4113 0.6pbw<\/p>\n

A-1 0.1pbw<\/p>\n

Su 3,5 pbw<\/p>\n

M50 50pbw<\/p>\n

\u0130zosiyanat endeksi 88<\/p>\n

 <\/p>\n

Fiziksel \u00f6zellikler:<\/p>\n

\u00c7izim s\u00fcresi(s) 62<\/p>\n

Y\u00fckselme s\u00fcresi(s) 98<\/p>\n

Serbest kabarc\u0131k yo\u011funlu\u011fu, kg\/m3 32,7<\/p>\n

S\u0131k\u0131\u015ft\u0131rma y\u00fck\u00fc sapmas\u0131, kpa:40% 1.5<\/p>\n

Uzama, % 180<\/p>\n

Y\u0131rt\u0131lma mukavemeti, N\/m 220<\/p>\n

Not: *310 katk\u0131 maddeleri: satt\u0131k, \u00f6zel bir zincir b\u00fcy\u00fcme maddesidir.<\/p>\n

 <\/p>\n

5\u3001Y\u00fcksek esneklik, s\u00fcr\u00fc\u015f konforu PU k\u00f6p\u00fck<\/p>\n

Son zamanlarda, pazar talebi k\u00f6p\u00fck koltuk minderi fiziksel \u00f6zellikleri de\u011fi\u015fmeden kal\u0131r, ancak insanlar yorgunluk olmadan uzun s\u00fcre arabada otururlar, hareket hastal\u0131\u011f\u0131 yok y\u00fcksek kaliteli koltuk minderi . Ara\u015ft\u0131rmadan sonra, insan v\u00fccudunun i\u00e7 organlar\u0131, \u00f6zellikle mide ve di\u011fer organlar yakla\u015f\u0131k 6Hz frekans\u0131nda, rezonanstan kaynaklan\u0131rsa reg\u00fcrjitasyon, kusma ve di\u011fer olaylara neden olacakt\u0131r.<\/p>\n

Genel olarak, y\u00fcksek esneklikli k\u00f6p\u00fc\u011f\u00fcn 6Hz'de titre\u015fim ge\u00e7irgenli\u011fi 1.1 ~ 1.3't\u00fcr, yani ara\u00e7 \u00e7al\u0131\u015f\u0131rken sadece zay\u0131flamakla kalmaz, ayn\u0131 zamanda artar ve baz\u0131 form\u00fcle edilmi\u015f \u00fcr\u00fcnler 0.8 ~ 0.9'a kadar titre\u015fim s\u00f6n\u00fcmleyebilir. \u015eimdi, 6Hz'de titre\u015fim ge\u00e7irgenli\u011fi 0.5 ~ 0.55 seviyesinde olan bir \u00fcr\u00fcn form\u00fcl\u00fc \u00f6neriyoruz.<\/p>\n

Form\u00fclasyon:<\/p>\n

Y\u00fcksek derecede aktif polieter poliol (Mn6000) 100pbw<\/p>\n

Silikon y\u00fczey aktif madde, SRX-274C 1.0pbw<\/p>\n

Tersiyer Amin Kataliz\u00f6r\u00fc, Minico L-1020 0,4pbw<\/p>\n

Tersiyer amin kataliz\u00f6r\u00fc, Minico TMDA 0,15pbw<\/p>\n

Su 3,6 pbw<\/p>\n

\u0130zosiyanat prepolimer (NCO%=29,7%)<\/p>\n

D\u0130Z\u0130N 100<\/p>\n

Fiziksel \u00d6zellikler:<\/p>\n

Toplam yo\u011funluk, kg\/m3 48,0<\/p>\n

25%ILD, kg\/314cm2 19,9<\/p>\n

Esneklik, % 74<\/p>\n

50% s\u0131k\u0131\u015ft\u0131rma dayan\u0131m\u0131, (kuru) 1,9<\/p>\n

(\u0131slak) 2,5<\/p>\n

6Hz titre\u015fim ge\u00e7irgenli\u011fi 0,55<\/p>\n

 <\/p>\n

6\u3001Yava\u015f geri tepme veya viskoelastik k\u00f6p\u00fck<\/p>\n

S\u00f6zde yava\u015f geri tepen PU k\u00f6p\u00fck, k\u00f6p\u00fc\u011f\u00fcn d\u0131\u015f kuvvetler taraf\u0131ndan deformasyonunu ifade eder, k\u00f6p\u00fck hemen orijinal \u015fekline geri d\u00f6nmez, ancak yava\u015f iyile\u015fir ve k\u00f6p\u00fc\u011f\u00fcn art\u0131k y\u00fczey deformasyonu olmaz. M\u00fckemmel yast\u0131klama, ses yal\u0131t\u0131m\u0131, s\u0131zd\u0131rmazl\u0131k ve di\u011fer \u00f6zelliklere sahiptir. Araba motor g\u00fcr\u00fclt\u00fcs\u00fcn\u00fc \u00f6nleme, hal\u0131 altl\u0131\u011f\u0131, \u00e7ocuk oyuncaklar\u0131 ve t\u0131bbi yast\u0131klarda kullan\u0131labilir.<\/p>\n

\u00d6rnek form\u00fcl:<\/p>\n

Y\u00fcksek derecede aktif polieter (OH34) 40~60pbw<\/p>\n

Polimer polieter (OH28) 60~40 pbw<\/p>\n

\u00c7apraz ba\u011flama maddesi ZY-108* 80~100 pbw<\/p>\n

L-580 1,5 pbw<\/p>\n

Kataliz\u00f6r 1.8~2.5 pbw<\/p>\n

Su 1.6~2.2 pbw<\/p>\n

\u0130zosiyanat indeksi** 1,05 pbw<\/p>\n

Not: *ZY-108, \u00e7ok fonksiyonlu d\u00fc\u015f\u00fck molek\u00fcler a\u011f\u0131rl\u0131kl\u0131 polieter bile\u015fi\u011fi<\/p>\n

**PM-200 ve s\u0131v\u0131la\u015ft\u0131r\u0131lm\u0131\u015f MDI-100 Wanhua \u00fcr\u00fcnleridir.<\/p>\n

Fiziksel \u00f6zellikler:<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu, kg\/m3 150~165<\/p>\n

Sertlik, Shore A 18~15<\/p>\n

Y\u0131rt\u0131lma mukavemeti, kN\/m 0,87~0,76<\/p>\n

Uzama, % 90~130<\/p>\n

Esneklik, % 9~7<\/p>\n

\u0130yile\u015fme s\u00fcresi, sn 7~10<\/p>\n

 <\/p>\n

7\u3001Esnek yorulma direnci milyon kez polieter tipi kendinden derili mikro h\u00fccreli k\u00f6p\u00fck<\/p>\n

K\u00f6p\u00fck PU ayakkab\u0131 taban\u0131na ve direksiyon simidine uygulanabilir<\/p>\n

\u00d6rnek:<\/p>\n

Daltocel\u00aeF-435 31,64 pbw<\/p>\n

Arcol\u00ae34-28 10.0 pbw<\/p>\n

Daltocel\u00aeF-481 44,72 pbw<\/p>\n

Arcol\u00ae2580 3.0 pbw<\/p>\n

Glikol 6.0 pbw<\/p>\n

Kataliz\u00f6r Dabco EG 1.8 pbw<\/p>\n

A-1 0,3 pbw<\/p>\n

Dabco\u00ae1027 0,3 pbw<\/p>\n

Silikon y\u00fczey aktif madde DC-193 0,3 pbw<\/p>\n

L1 412T 1,5 pbw<\/p>\n

Su 0,44 pbw<\/p>\n

Modifiye MDI<\/p>\n

Suprasec\u00ae2433 71 pbw<\/p>\n

 <\/p>\n

Fiziksel \u00f6zellikler:<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu: yakla\u015f\u0131k 0,5 g\u2215cm3<\/p>\n

\u03b2-kay\u0131\u015f sapmas\u0131, KCS 35 ile 50 aras\u0131nda, \u00e7ok iyi<\/p>\n

 <\/p>\n

8\u3001Alev geciktirici, d\u00fc\u015f\u00fck duman emisyonlu, y\u00fcksek esneklikli k\u00f6p\u00fck<\/p>\n

Ulusal ekonominin h\u0131zla geli\u015fmesiyle birlikte, \u00e7e\u015fitli departmanlar\u0131n alev geciktirici k\u00f6p\u00fck \u00fcr\u00fcnleri i\u00e7in daha y\u00fcksek ve daha y\u00fcksek gereksinimleri vard\u0131r, \u00f6zellikle havac\u0131l\u0131k, arabalar, y\u00fcksek h\u0131zl\u0131 otob\u00fcsler, ev kanepeleri ve benzeri, hepsi alev geciktirici, d\u00fc\u015f\u00fck duman, d\u00fc\u015f\u00fck duman toksisitesi veya toksik olmayan k\u00f6p\u00fck \u00fcr\u00fcnleri gerektirir.<\/p>\n

Yazarlar ve meslekta\u015flar\u0131 yukar\u0131daki durum i\u00e7in alev geciktirici bir s\u0131n\u0131f (oksijen indeksi 28 ~ 30%) geli\u015ftirdiler, duman yo\u011funlu\u011fu \u00e7ok d\u00fc\u015f\u00fck (uluslararas\u0131 74, bu \u00fcr\u00fcn sadece 50 veya daha fazla) ve k\u00f6p\u00fck geri tepmesi de\u011fi\u015fmedi, beyaz duman \u00fcretiminde alev.<\/p>\n

\u00d6rnek form\u00fcl:<\/p>\n

YB-3081 alev geciktirici polieter 50 pbw<\/p>\n

Y\u00fcksek derecede aktif polieter (OH34) 50 pbw<\/p>\n

Organosilikon y\u00fczey aktif madde B 8681 0.8~1.0 pbw<\/p>\n

Su 2,4~2,6 pbw<\/p>\n

DEOA 1,5~3 pbw<\/p>\n

Kataliz\u00f6r A-1 vb. 0.6~1.1 pbw<\/p>\n

\u0130zosiyanat indeksi 1,05<\/p>\n

 <\/p>\n

Fiziksel \u00f6zellikler:<\/p>\n

K\u00f6p\u00fck yo\u011funlu\u011fu, kg\/m3 \u226550<\/p>\n

S\u0131k\u0131\u015ft\u0131rma dayan\u0131m\u0131, kPa 5.5<\/p>\n

\u00c7ekme mukavemeti, kPa 124<\/p>\n

Esneklik, % \u226560<\/p>\n

S\u0131k\u0131\u015ft\u0131rma deformasyonu, 75% \u22648<\/p>\n

Oksijen indeksi, OI% \u2265 28<\/p>\n

Duman yo\u011funlu\u011fu \u226450<\/p>\n

 <\/p>\n

9\u3001\u015ei\u015firme maddesi olarak su, \u00e7evre dostu entegre cilt k\u00f6p\u00fc\u011f\u00fc<\/p>\n

Yabanc\u0131 \u00fclkelerde HCFC-141b \u015fi\u015firme maddesi tamamen yasaklanm\u0131\u015ft\u0131r, CP sistem \u015fi\u015firme maddesi yan\u0131c\u0131d\u0131r, HFC-245fa, HFC-365mfc sistem \u015fi\u015firme maddesi fiyat\u0131 y\u00fcksektir, kabul edilmesi zordur, tek \u00e7\u0131k\u0131\u015f yolu \u015fi\u015firme maddesi olarak su ile \u00e7evre dostu integral cilt k\u00f6p\u00fc\u011f\u00fc sentezlemektir. Ge\u00e7mi\u015fte, yerli ve yabanc\u0131 PU i\u015f\u00e7ileri, sadece polieter ve izosiyanat modifikasyonuna dikkat ettiler, bu nedenle y\u00fczey tabakas\u0131ndan yap\u0131lan k\u00f6p\u00fck net de\u011fil, y\u00fcksek yo\u011funluklu.<\/p>\n

\u015eimdi, \u015fu \u00f6zelliklerle karakterize edilen bir grup form\u00fclasyon \u00f6nerilmektedir:<\/p>\n

Temel polieter poliol, geleneksel Mn5000 veya 6000 kullan\u0131larak de\u011fi\u015fmeden kal\u0131r.
\n\u0130zosiyanat de\u011fi\u015fmeden kal\u0131r ve C-MDI, PAPI veya modifiye MDI kullan\u0131labilir.
\nSH-140 \u00f6zel katk\u0131 maddelerinin kullan\u0131m\u0131 ile \u00e7\u00f6z\u00fclebilir. -
\nTemel form\u00fcl:<\/p>\n

Y\u00fcksek derecede aktif polieter terpolyol Mn5000 65pbw
\nSH-140* 35pbw
\nZincir b\u00fcy\u00fctme maddesi: 1,4-b\u00fctandiol 5pbw
\n\u00c7apraz ba\u011flama maddesi: Gliserol 7pbw
\nG\u00f6zenek a\u00e7\u0131c\u0131: K-6530 0.2~0.5pbw
\nKataliz\u00f6r A-2 1.2~1.3pbw
\nOrta miktarda renkli macun
\nSu 5pbw
\nMR-200 45pbw
\nNot: *SH-140 bizim \u00fcr\u00fcn\u00fcm\u00fczd\u00fcr.<\/p>\n

 <\/p>\n

Fiziksel \u00f6zellikler:<\/p>\n

Toplam k\u00f6p\u00fck yo\u011funlu\u011fu 340~350kg\/m3<\/p>\n

\u00dcr\u00fcn: P\u00fcr\u00fczs\u00fcz y\u00fczey, berrak kabuk, d\u00fc\u015f\u00fck yo\u011funluk.<\/p>\n

Build a catalyst screen from reaction balance<\/h2>\n

Kullan\u0131m SYNOCAT\u00ae TEDA crystalline catalyst<\/a> as one established polyurethane-catalyst reference. Compare it with SYNOCAT\u00ae PMDETA \/ PC-5<\/a> veya SYNOCAT\u00ae DMCHA \/ PC-8<\/a> only after defining foam type and the required blowing-versus-gelling balance. The product pages do not replace a rise-profile trial.<\/p>","protected":false},"excerpt":{"rendered":"

1\u3001Typical formula and performance of block polyether type PU soft foam Polyether ternary alcohol 100pbw TDI80\/20 46.0pbw Organic tin catalyst 0.4pbw Tertiary amine catalyst 0.2pbw Organosilicon foam stabiliser 1.0pbw Water<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-6974","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"\nPolyurethane Catalysts for Flexible Foam: Selection Guide<\/title>\n<meta name=\"description\" content=\"Select polyurethane catalysts for flexible foam by balancing blowing and gelling, rise profile, airflow, density, compression set and processing stability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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