Annealing of commercial block polypropylene. I. Thermal and physical properties
Investigations were carried out regarding the effect of annealing of ethylene–propylene block copolymer (block PP) moldings on their tensile impact strength (TIS), brittle temperature (Tb), and other mechanical properties. Annealing near the melting point improves TIS and Tb as the result of recryst...
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| Veröffentlicht in: | Journal of applied polymer science 1992-11, Vol.46 (7), p.1221-1233 |
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| container_end_page | 1233 |
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| container_title | Journal of applied polymer science |
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| creator | Ito, Jun-Ichi Mitani, Katsuo Mizutani, Yukio |
| description | Investigations were carried out regarding the effect of annealing of ethylene–propylene block copolymer (block PP) moldings on their tensile impact strength (TIS), brittle temperature (Tb), and other mechanical properties. Annealing near the melting point improves TIS and Tb as the result of recrystallization. With a system in which a minute amount of talc is added as a nucleating agent, the degree of improving TIS through annealing is considerably less than that with a nonnucleated system. The effect of annealing on the impact strength is due to changes of fine texture and morphology of crystallites and is explicable by recrystallization and polymer diffusion. © 1992 John Wiley & Sons, Inc. |
| doi_str_mv | 10.1002/app.1992.070460712 |
| format | Article |
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I. Thermal and physical properties</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>Investigations were carried out regarding the effect of annealing of ethylene–propylene block copolymer (block PP) moldings on their tensile impact strength (TIS), brittle temperature (Tb), and other mechanical properties. Annealing near the melting point improves TIS and Tb as the result of recrystallization. With a system in which a minute amount of talc is added as a nucleating agent, the degree of improving TIS through annealing is considerably less than that with a nonnucleated system. The effect of annealing on the impact strength is due to changes of fine texture and morphology of crystallites and is explicable by recrystallization and polymer diffusion. © 1992 John Wiley & Sons, Inc.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Mechanical properties</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Properties and characterization</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNqNkEtPGzEUhS1UpKbQP9DVLCp2M_X7IbGJopIiELCg7dJyPHfAxfOoHVTm39dRUNRdWVnW-c650ofQJ4IbgjH94qapIcbQBivMJVaEHqEFwUbVXFL9Di0KRGptjHiPPuT8C2NCBJYLdLscBnAxDA_V2FV-7HtIPrhYbeLon6ppjPOUxmmOMEBTXTbV_SOkvuRuaKvpcc7Bl88OgbQNkE_Rcediho-v7wn6fvH1fvWtvr5dX66W17XnWNO6NVIwSqhireKmleCJdy2RHTFswxxXEiTnJTbebEC2HAshWjCyxNJLyU7Q2X63nP79DHlr-5A9xOgGGJ-zpUJJpin9L0gKZqhWBaR70Kcx5wSdnVLoXZotwXYn2RbJdifZHiSX0ufXdZeLiC65wYd8aHJGqMaiYOd77E-IML9h2C7v7v69Uu_rIW_h5VB36clKxZSwP2_W9oe-ohd6vbKa_QWQI5xg</recordid><startdate>19921105</startdate><enddate>19921105</enddate><creator>Ito, Jun-Ichi</creator><creator>Mitani, Katsuo</creator><creator>Mizutani, Yukio</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19921105</creationdate><title>Annealing of commercial block polypropylene. 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| subjects | Applied sciences Exact sciences and technology Mechanical properties Organic polymers Physicochemistry of polymers Properties and characterization |
| title | Annealing of commercial block polypropylene. I. Thermal and physical properties |
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