PL413582A1 - Method for producing polyurethane auxetic foam with elongated return time - Google Patents

Method for producing polyurethane auxetic foam with elongated return time

Info

Publication number
PL413582A1
PL413582A1 PL413582A PL41358215A PL413582A1 PL 413582 A1 PL413582 A1 PL 413582A1 PL 413582 A PL413582 A PL 413582A PL 41358215 A PL41358215 A PL 41358215A PL 413582 A1 PL413582 A1 PL 413582A1
Authority
PL
Poland
Prior art keywords
foam
producing polyurethane
return time
auxetic foam
elongated return
Prior art date
Application number
PL413582A
Other languages
Polish (pl)
Inventor
Janusz Lisiecki
Dominik Nowakowski
Original Assignee
Instytut Techniczny Wojsk Lotniczych
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 Instytut Techniczny Wojsk Lotniczych filed Critical Instytut Techniczny Wojsk Lotniczych
Priority to PL413582A priority Critical patent/PL413582A1/en
Publication of PL413582A1 publication Critical patent/PL413582A1/en

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)

Abstract

Ujawniono sposób wytwarzania poliuretanowej pianki auksetycznej o wydłużonym czasie powrotu w stosunku do pianki wiskoelastycznej, z której ją wytworzono, charakteryzującej się ujemnym współczynnikiem Poissona przy naprężeniach ściskających. Przed każdym następnym stopniem kompresji piankę wyjmuje się z formy i rozciąga się ręcznie do co najmniej 60% objętości pianki w stosunku do objętości pianki w stanie wyjściowym.A method for producing polyurethane auxetic foam with an extended recovery time is disclosed relative to the viscoelastic foam from which it was made, which has a negative Poisson's ratio at compressive stresses. Before each subsequent degree of compression, the foam is removed from the mold and stretched manually to at least 60% of the foam volume relative to the foam volume at the initial state.

PL413582A 2015-08-17 2015-08-17 Method for producing polyurethane auxetic foam with elongated return time PL413582A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL413582A PL413582A1 (en) 2015-08-17 2015-08-17 Method for producing polyurethane auxetic foam with elongated return time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL413582A PL413582A1 (en) 2015-08-17 2015-08-17 Method for producing polyurethane auxetic foam with elongated return time

Publications (1)

Publication Number Publication Date
PL413582A1 true PL413582A1 (en) 2017-02-27

Family

ID=58091971

Family Applications (1)

Application Number Title Priority Date Filing Date
PL413582A PL413582A1 (en) 2015-08-17 2015-08-17 Method for producing polyurethane auxetic foam with elongated return time

Country Status (1)

Country Link
PL (1) PL413582A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107474303A (en) * 2017-07-11 2017-12-15 中国科学院长春应用化学研究所 A kind of negative poisson's ratio polymer foams and preparation method thereof
CN109776961A (en) * 2019-01-22 2019-05-21 中国科学院长春应用化学研究所 A kind of non-polar polymer negative poisson's ratio foamed material and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107474303A (en) * 2017-07-11 2017-12-15 中国科学院长春应用化学研究所 A kind of negative poisson's ratio polymer foams and preparation method thereof
CN107474303B (en) * 2017-07-11 2020-01-31 中国科学院长春应用化学研究所 negative Poisson ratio polymer foam materials and preparation method thereof
CN109776961A (en) * 2019-01-22 2019-05-21 中国科学院长春应用化学研究所 A kind of non-polar polymer negative poisson's ratio foamed material and preparation method thereof

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