A kind of transparent modified nylon fiber with low heat change temperature and its preparation method

Abstract

The invention provides transparent modified nylon fiber with low thermal change temperature and a preparation method thereof. The preparation method comprises the following steps: placing borax in a ball mill, grinding sufficiently, and drying to obtain micro-nano borax powder; chipping PA PACM12 type nylon, drying sufficiently in an oven, mixing well with the micro-nano borax powder, melting in a heating device to form molten liquid, and cooling at high speed to room temperature to obtain modified master batch; grinding the modified master batch into powdery particles, mixing with butyl rubber, performing melt spinning to obtain primarily spun fiber, and quickly cooling the primarily spun fiber to obtain the transparent modified nylon fiber with low thermal change temperature. The fiber prepared by the method has good physical and mechanical properties, has low processing temperature, good transparency and good processibility and is useful in garment fabric or decorations.

Description

technical field

[0001] The invention belongs to the technical field of textile materials, and in particular relates to a transparent modified nylon fiber with low heat change temperature and a preparation method thereof. Background technique

[0002] As we all know, soft plastics generally refer to thermoplastics, processed by injection molding, and plastics that can be processed again after molding are called soft plastics. Nylon is a thermoplastic material, but the softening temperature of nylon is 200-300°C. It is necessary to use a high-temperature heating device to deform nylon. On the one hand, it can ensure the stability of nylon in daily use, but it also limits its Deformability after leaving the factory.

[0003] At present, there are also a few reports on the research on materials based on changing the softening temperature. Chinese patent CN1660931A discloses a PVC modified plastic with high thermal deformation performance and its preparation method. By using hi...

Examples

Embodiment 1

[0027] (1) Borax is placed in a ball mill, fully ground at a speed of 600r / min for 20h, and dried at a temperature of 60°C to obtain micro-nano borax powder with a particle size of 500nm.

[0028] (2) By weight, 100 parts of PA PACM12 type nylon slices are placed in an oven and fully dried to a moisture content of 1%, fully mixed with the micro-nano-level borax powder prepared by 1 part of step (1), placed in Treat in a heating device at 260°C for 10 hours to form a molten liquid, and then rapidly cool to room temperature within 15 minutes to obtain a modified masterbatch.

[0029] (3) The modified masterbatch prepared in step (2) is ground into powder particles with a particle diameter of 1 μm, mixed with 20 parts of butyl rubber, and the as-spun fibers are obtained after melt spinning, and the as-spun fibers are first The temperature was raised to 100°C, and then lowered to room temperature at a rate of 10°C / min to obtain a transparent modified nylon fiber with a low thermal...

Embodiment 2

[0031] (1) Borax is placed in a ball mill, fully ground at a speed of 800r / min for 36h, and dried at a temperature of 80°C to obtain micro-nano borax powder with a particle size of 1000nm.

[0032] (2) In parts by weight, the PA PACM12 type nylon chips of 100 parts are placed in an oven and fully dried to a moisture content of 3%, fully mixed with the micronano-level borax powder prepared by 15 parts of steps (1), placed in Treat in a heating device at 270°C for 15 hours to form a molten liquid, and then rapidly cool to room temperature within 30 minutes to obtain a modified masterbatch.

[0033] (3) The modified masterbatch prepared in step (2) is ground into powder particles with a particle diameter of 2 μm, mixed with 40 parts of butyl rubber, and the as-spun fibers are obtained after melt spinning, and the as-spun fibers are first The temperature was raised to 100°C, and then lowered to room temperature at a rate of 10°C / min to obtain a transparent modified nylon fiber wit...

Embodiment 3

[0035] (1) Put borax in a ball mill, fully grind it at a speed of 700 r / min for 24 hours, and dry at a temperature of 70° C. to obtain micro-nano borax powder with a particle size of 800 nm.

[0036] (2) In parts by weight, the PA PACM12 type nylon chips of 100 parts are placed in an oven and fully dried to a moisture content of 2%, fully mixed with the micronano-level borax powder prepared by 5 parts of steps (1), placed in Treat in a heating device at 265°C for 12 hours to form a molten liquid, and then rapidly cool to room temperature within 20 minutes to obtain a modified masterbatch.

[0037] (3) The modified masterbatch prepared in step (2) is ground into powder particles with a particle size of 1.5 μm, mixed with 30 parts of butyl rubber, and the as-spun fibers are obtained after melt spinning, and the as-spun fibers are The temperature was first raised to 100°C, and then lowered to room temperature at a rate of 10°C / min to obtain a transparent modified nylon fiber with...

technical field

[0001] The invention belongs to the technical field of textile materials, and in particular relates to a transparent modified nylon fiber with low heat change temperature and a preparation method thereof. Background technique

[0002] As we all know, soft plastics generally refer to thermoplastics, processed by injection molding, and plastics that can be processed again after molding are called soft plastics. Nylon is a thermoplastic material, but the softening temperature of nylon is 200-300°C. It is necessary to use a high-temperature heating device to deform nylon. On the one hand, it can ensure the stability of nylon in daily use, but it also limits its Deformability after leaving the factory.

[0003] At present, there are also a few reports on the research on materials based on changing the softening temperature. Chinese patent CN1660931A discloses a PVC modified plastic with high thermal deformation performance and its preparation method. By using hi...

Examples

Embodiment 1

[0027] (1) Borax is placed in a ball mill, fully ground at a speed of 600r / min for 20h, and dried at a temperature of 60°C to obtain micro-nano borax powder with a particle size of 500nm.

[0028] (2) By weight, 100 parts of PA PACM12 type nylon slices are placed in an oven and fully dried to a moisture content of 1%, fully mixed with the micro-nano-level borax powder prepared by 1 part of step (1), placed in Treat in a heating device at 260°C for 10 hours to form a molten liquid, and then rapidly cool to room temperature within 15 minutes to obtain a modified masterbatch.

[0029] (3) The modified masterbatch prepared in step (2) is ground into powder particles with a particle diameter of 1 μm, mixed with 20 parts of butyl rubber, and the as-spun fibers are obtained after melt spinning, and the as-spun fibers are first The temperature was raised to 100°C, and then lowered to room temperature at a rate of 10°C / min to obtain a transparent modified nylon fiber with a low thermal...

Embodiment 2

[0031] (1) Borax is placed in a ball mill, fully ground at a speed of 800r / min for 36h, and dried at a temperature of 80°C to obtain micro-nano borax powder with a particle size of 1000nm.

[0032] (2) In parts by weight, the PA PACM12 type nylon chips of 100 parts are placed in an oven and fully dried to a moisture content of 3%, fully mixed with the micronano-level borax powder prepared by 15 parts of steps (1), placed in Treat in a heating device at 270°C for 15 hours to form a molten liquid, and then rapidly cool to room temperature within 30 minutes to obtain a modified masterbatch.

[0033] (3) The modified masterbatch prepared in step (2) is ground into powder particles with a particle diameter of 2 μm, mixed with 40 parts of butyl rubber, and the as-spun fibers are obtained after melt spinning, and the as-spun fibers are first The temperature was raised to 100°C, and then lowered to room temperature at a rate of 10°C / min to obtain a transparent modified nylon fiber wit...

Embodiment 3

[0035] (1) Put borax in a ball mill, fully grind it at a speed of 700 r / min for 24 hours, and dry at a temperature of 70° C. to obtain micro-nano borax powder with a particle size of 800 nm.

[0036] (2) In parts by weight, the PA PACM12 type nylon chips of 100 parts are placed in an oven and fully dried to a moisture content of 2%, fully mixed with the micronano-level borax powder prepared by 5 parts of steps (1), placed in Treat in a heating device at 265°C for 12 hours to form a molten liquid, and then rapidly cool to room temperature within 20 minutes to obtain a modified masterbatch.

[0037] (3) The modified masterbatch prepared in step (2) is ground into powder particles with a particle size of 1.5 μm, mixed with 30 parts of butyl rubber, and the as-spun fibers are obtained after melt spinning, and the as-spun fibers are The temperature was first raised to 100°C, and then lowered to room temperature at a rate of 10°C / min to obtain a transparent modified nylon fiber with...