Chemical Forums

Specialty Chemistry Forums => Materials and Nanochemistry forum => Topic started by: blackcat on October 04, 2019, 04:15:39 PM

Title: Which organic polymers you find most interesting or useful?
Post by: blackcat on October 04, 2019, 04:15:39 PM

Limited to organic polymers, please. Also tell us why u think so.

Title: Re: Which organic polymers you find most interesting or useful?
Post by: Enthalpy on October 07, 2019, 05:41:10 PM

Man-made polymers? Presently I'm highly interested in LCP (liquid crystal polymer), because its stiffness and mechanical losses seem to exceed Dalbergia melanoxylon (grenadilla), especially with graphite fibre choppers.

Ideally, LCP would replace grenadilla for top-end woodwind instruments, hopefully improve the performance, spare the endangered species, and allow musicians to cross borders.

An other candidate is polyketone. Not very stiff, but very lossy, and cheap. If it doesn't make the body, it might make more silent keyworks.

Rationale there :

Wall's elliptic deformation http://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1023070
more formally http://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1025367

Body bending https://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1077364
and next

LCP vs grenadilla https://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1095167

Title: Re: Which organic polymers you find most interesting or useful?
Post by: blackcat on October 07, 2019, 07:16:02 PM

Quote from: Enthalpy on October 07, 2019, 05:41:10 PM

Man-made polymers? Presently I'm highly interested in LCP (liquid crystal polymer), because its stiffness and mechanical losses seem to exceed Dalbergia melanoxylon (grenadilla), especially with graphite fibre choppers.

Ideally, LCP would replace grenadilla for top-end woodwind instruments, hopefully improve the performance, spare the endangered species, and allow musicians to cross borders.

An other candidate is polyketone. Not very stiff, but very lossy, and cheap. If it doesn't make the body, it might make more silent keyworks.

Rationale there :

Wall's elliptic deformation http://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1023070
more formally http://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1025367

Body bending https://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1077364
and next

LCP vs grenadilla https://www.scienceforums.net/topic/111316-woodwind-materials/?do=findComment&comment=1095167

Good points! I will take some time looking into those polymers