CAMPUS (塑料产品数据库, 免费)
【公司简介】
免费的工程塑料、树脂产品信息，包括产品的牌号、物性、用途和分类等信息，其内容涵盖了90%的工程塑料市场产品。

保温材料数据库NASA TPSX (免费)
【数据内容】
The Thermal Protection Systems Expert and Material Property Database, or TPSX, is a database for advanced thermal protection material properties.

TPSX is produced and maintained by the engineers and scientists of the Thermal Protection Materials and Systems Branch (Code ASM) at NASA Ames Research Center. This program is the result of a project to compile, maintain and provide easy access to the large amount of material property data used by ASM in the development of thermal protection systems (TPS).

TPSX Web Edition content for Worldwide Access:

ASA Ames Thermal Protection Materials

This database was compiled by the Thermal Protection Materials and Systems Branch at NASA Ames Research Center. Additional data was provided by NASA Johnson Space Center, NASA Langley Research Center, Aerotherm Corporation and S.D. Miller & Associates. The distribution and access of this database is restricted. Further dissemination is prohibited without specific written approval of NASA Ames Research Center.

NASA JSC PathFinder Materials

This database was compiled at NASA Johnson Space Center. A full reference of the materials in this database can be found in: "Thermal Protection Materials: Thermal Physical Property Data", D. Curry, S.D. Williams, NASA Reference Publication 1289, December 1992.

K&K Associates Materials

This database was compiled and supplied by K&K Associates. The property data is derived from the reference "For Computer Heat-Conduction Calculations A Compilation of Thermal Properties Data", A.L. Edwards, UCRL-50589, Feb. 24, 1969.

PoLyInfo (高分子材料设计所需的各种数据) (免费)
【数据内容】
PoLyInfo provides a wide variety of data required in polymeric material design. Chemical structures of polymers, various names including IUPAC based name, properties of each sample with measurement conditions and processing method and so on are stored in the database. Monomers and polymerization information related to each polymer are also included in PoLyInfo.

The number of released data contained by PoLyInfo is as follows as on 17 June, 2003.
Constitutional units : 7701
Monomers : 6552(+2113)
Data points : 82313(+37753)
References : 6848(+2656)

LiqCryst Online (液晶数据库) (部分免费)
【数据内容】
LiqCryst is the database of thermotropic liquid crystals. LiqCryst Online contains free access to the chemical structures and registration numbers of all compounds compiled in LiqCryst 3.2. Further, LiqCryst Online gives access to the complete data set of about 5000 liquid crystals.

The database LiqCryst compiles chemical structures, thermal phase behavior, physical properties and references of all known thermotropic liquid crystals.

Actually, the database contains entries for more than 75000 compounds compiled from more than 17000 references including not only journals, books and monographs, but also patent literature, conference proceedings and Ph.D. theses.

日本国立材料科学研究所：材料数据库(免费)
【数据内容】Basic Database for Crystal Structures，Structural Materials Database，The Structural Materials Database consists of Text and Fact Database，he Fact Database has fact data of Creep and Fatigue Data Sheets，Database System for Pressure Vessel Materials，Diffusion Database