A fabric is provided. The fabric includes a base cloth and a coating layer. The coating layer is disposed on the base cloth, and the coating layer includes a resin matrix and a temperature-regulating powder, wherein the content of the temperature-regulating powder ranges from 20 to 80 parts by weight based on 100 parts by weight of the resin matrix, and the material of the temperature-regulating powder includes modified polyaniline.

A fabric is provided. The fabric includes a base cloth and a coating layer. The coating layer is disposed on the base cloth, and the coating layer includes a resin matrix and a temperature-regulating powder, wherein the content of the temperature-regulating powder ranges from 20 to 80 parts by weight based on 100 parts by weight of the resin matrix, and the material of the temperature-regulating powder includes modified polyaniline.

A method for establishing a wastewater bioreactor environment including the step of introducing a modified polydimethylsiloxane fiber to a bioreactor tank of a membrane-aerated bioreactor.

A method for establishing a wastewater bioreactor environment including the step of introducing a modified polydimethylsiloxane fiber to a bioreactor tank of a membrane-aerated bioreactor.

When the porous membrane, which has two surfaces of a surface A and a surface C, is equally divided in the thickness direction of the porous membrane into three layers of a first layer including the surface A, a second layer that is a central layer in the thickness direction, and a third layer including the surface C, an average trunk size of the third layer is larger than an average trunk size of the second layer, and when a continuous layer from the surface A having a thickness of 10 m in the first layer is a first layer component, a continuous layer component having a thickness of 10 m and an average trunk size smaller than an average trunk size of the first layer component is present in the first layer, the second layer, and the third layer other than the first layer component.

When the porous membrane, which has two surfaces of a surface A and a surface C, is equally divided in the thickness direction of the porous membrane into three layers of a first layer including the surface A, a second layer that is a central layer in the thickness direction, and a third layer including the surface C, an average trunk size of the third layer is larger than an average trunk size of the second layer, and when a continuous layer from the surface A having a thickness of 10 m in the first layer is a first layer component, a continuous layer component having a thickness of 10 m and an average trunk size smaller than an average trunk size of the first layer component is present in the first layer, the second layer, and the third layer other than the first layer component.

A polymetalloxane including structural units represented by formulae (1-1) and (1-2), and having a weight-average molecular weight of 30,000 or more and 2,000,000 or less;

##STR00001## wherein, M.sup.1 and M.sup.2 independently represent different metal atoms; L.sup.1 and L.sup.2 are each independently a group selected from the group consisting of an allyloxy group, an aryloxy group, and a trialkylsiloxy group; L.sup.1 and L.sup.2 may be the same or different, and at least one thereof is an allyloxy group or an aryloxy group; R.sup.1 and R.sup.2 are each independently a hydrogen atom, a C.sub.1-12 alkyl group, or a group having a metalloxane bond; m is an integer that represents the valence of the metal atom M.sup.1, and a is an integer of 1 to (m2); and n is an integer that represents the valence of the metal atom M.sup.2, and b is an integer of 1 to (n2).

A polymetalloxane including structural units represented by formulae (1-1) and (1-2), and having a weight-average molecular weight of 30,000 or more and 2,000,000 or less;

##STR00001## wherein, M.sup.1 and M.sup.2 independently represent different metal atoms; L.sup.1 and L.sup.2 are each independently a group selected from the group consisting of an allyloxy group, an aryloxy group, and a trialkylsiloxy group; L.sup.1 and L.sup.2 may be the same or different, and at least one thereof is an allyloxy group or an aryloxy group; R.sup.1 and R.sup.2 are each independently a hydrogen atom, a C.sub.1-12 alkyl group, or a group having a metalloxane bond; m is an integer that represents the valence of the metal atom M.sup.1, and a is an integer of 1 to (m2); and n is an integer that represents the valence of the metal atom M.sup.2, and b is an integer of 1 to (n2).

A polyphenylene sulfide short fiber has a monofilament fineness of 0.70 to 0.95 dtex, a strength of 4.5 to 5.5 cN/dtex, a fiber length of 20 to 100 mm, and a melt flow rate (MFR) value of 200 to 295 g/10 min. The polyphenylene sulfide short fiber enables improvements to be made in the dust collection performance and mechanical strength without impairing the fiber productivity or felt productivity.

A polyphenylene sulfide short fiber has a monofilament fineness of 0.70 to 0.95 dtex, a strength of 4.5 to 5.5 cN/dtex, a fiber length of 20 to 100 mm, and a melt flow rate (MFR) value of 200 to 295 g/10 min. The polyphenylene sulfide short fiber enables improvements to be made in the dust collection performance and mechanical strength without impairing the fiber productivity or felt productivity.