阅读说明：本技术 光致变色纤维母粒的制备方法 (The preparation method of photochromic fibre master batch ) 是由 魏庭龙 刘晓峰 彭志勇 谢伟 刘向向 李珊珊 侯文杰 李林 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种光致变色纤维母粒的制备方法,包括如下步骤：1)按重量份取如下原料：10-90份PET,0-40份PBT,0-20份染料,1-30份光致变色粉体,3-8份阻燃剂,1-4份抗菌剂,0.5-1.5份热稳定剂,0.5-1.5份抗氧剂,0.5-1.5份分散助剂；2)将原料中的PET和PBT进行干燥；3)将原料中的热稳定剂、抗氧剂、分散助剂与光致变色粉体进行预混,之后与PET和PBT以及原料中的其他组分一同投入混料机中,充分搅拌混匀并得到混合料；4)将得到的混合料投入双螺杆挤出机中进行挤出造粒。本发明制备的母粒适用于光致变色纤维的生产,可解决现有采用涂层方式制成光致变色纤维带来的持久性差以及环境污染的问题；并且,本发明制备的母粒具有良好的阻燃性能和抗菌性能,有较广阔的应用前景。(The invention discloses a kind of preparation methods of photochromic fibre master batch, include the following steps: 1) to take the following raw material by weight: 10-90 parts of PET, 0-40 parts of PBT, 0-20 parts of dyestuffs, 1-30 parts of photochromic powders, 3-8 parts of fire retardants, 1-4 parts of antibacterial agents, 0.5-1.5 parts of heat stabilizers, 0.5-1.5 parts of antioxidant, 0.5-1.5 parts of dispersing aiies；2) by raw material PET and PBT be dried；3) heat stabilizer, antioxidant, dispersing aid and the photochromic powder in raw material are premixed, is put into batch mixer together with the other components in PET and PBT and raw material later, be sufficiently stirred and mix and obtain mixture；4) obtained mixture is put into double screw extruder and carries out extruding pelletization.Master batch prepared by the present invention is suitable for the production of photochromic fibre, can solve the problems, such as that photochromic fibre bring persistence difference and environmental pollution is made in existing use coating way；Also, master batch prepared by the present invention has good flame retardant property and anti-microbial property, there is wide application prospect.)

1. a kind of preparation method of photochromic fibre master batch, which comprises the steps of:

1) feeding: the following raw material is taken by weight:

10-90 parts of PET,

0-40 parts of PBT,

0-20 parts of dyestuffs,

1-30 parts of photochromic powders,

3-8 parts of fire retardants,

1-4 parts of antibacterial agents,

0.5-1.5 parts of heat stabilizers,

0.5-1.5 parts of antioxidant,

0.5-1.5 parts of dispersing aiies,

Wherein, the inherent viscosity of the PET is 0.66-0.82dL/g, and the fusing point of PET is 180-253 DEG C, the spy of the PBT Property viscosity be 0.82-1.0dL/g, and the fusing point of PBT be 180-230 DEG C；

2) dry: by raw material PET and PBT be dried, drying temperature is 95-105 DEG C, and vacuum degree≤- 0.08MPa is done The dry time is 6-12 hours；

3) it mixes: heat stabilizer, antioxidant, dispersing aid and the photochromic powder in raw material is premixed, and suitably add Temperature forms layer protecting film on photochromic powder, later with the PET and PBT after drying and the other components in raw material It puts into batch mixer together, is sufficiently stirred and mixes and obtain mixture；

4) it is granulated: obtained mixture is put into double screw extruder, drawn through circular hole die extrusion, sink cooling, tie rod Cylindrical type particle is cut into pelleter；The double screw extruder is furnished with vacuum evacuation device, the major diameter of the double screw extruder Than being not less than 40:1, technological temperature when extrusion is 165-240 DEG C.

2. the preparation method of photochromic fibre master batch according to claim 1, which is characterized in that the characteristic of the PET Viscosity is 0.82dl/g, and the inherent viscosity of the PBT is 1dl/g.

3. the preparation method of photochromic fibre master batch according to claim 2, which is characterized in that the dyestuff is anthraquinone One or more of dyestuff, heterocyclic solvent dye, methylene base class solvent dye.

4. the preparation method of photochromic fibre master batch according to claim 3, which is characterized in that the photochromic powder Body is one or more of spiro-pyrans class, diarylethene, the liquor-saturated class of fulgenic acid, discoloration microcapsules.

5. the preparation method of photochromic fibre master batch according to claim 4, which is characterized in that the fire retardant of stating is One or more of aryl phosphate alkyl ester, brominated triazine, antimony oxide, brominated epoxy resin.

6. the preparation method of photochromic fibre master batch according to claim 5, which is characterized in that the antibacterial agent is to receive Nano silver ion antibacterial agent.

7. the preparation method of photochromic fibre master batch according to claim 6, which is characterized in that the dispersing aid is One or more of ethylene bis stearic acid amide, titanate coupling agent, silane coupling agent, silicone analog assistant.

Technical field

The present invention relates to a kind of preparation methods of photochromic fibre master batch.

Background technique

Photochromic fibre is the new function of a kind of wavelength difference as exposure to light and color generation reversible change Property fiber.This fiber has many advantages, such as that application value is high, nontoxic, long service life, can be widely applied to national defence, military affairs, Each field such as national economy, as anti-false trademark, bill, identity document, color-changing window, optical sensor, photoswitch, information memory,

Camouflage fatigue (camouflage clothes), base camp tent and weapon pretend covering.The fabric made of this fiber is presented on daytime Color similar with ambient enviroment, and become dark at night, to reach preferable camouflage effectiveness.

Currently, the photochromic fibre having in the market is obtained using the method for coating mostly, obtained by this kind of mode Coating is easy to fall off the photochromic fibre obtained in use, and color changeable effect cannot be lasting, and in the fabrication process can Bring certain environmental pollution.In addition, the anti-flammability and antibiotic property of traditional photochromic fibre are relatively poor, it is therefore, anxious Need a kind of photochromic fibre master batch to solve the above problems.

Summary of the invention

The purpose of the present invention is to provide a kind of preparation method of photochromic fibre master batch, the master batch of preparation is suitable for light The production of mutagens color fibre can solve existing use coating way and photochromic fibre bring persistence difference and environment is made The problem of pollution；Also, the present invention is by addition fire retardant and antibacterial agent, so that master batch has good flame retardant property and antibacterial Performance has wide application prospect.

To achieve the above object, the technical scheme is to design a kind of preparation method of photochromic fibre master batch, Include the following steps:

1) feeding: the following raw material is taken by weight:

10-90 parts of PET,

0-40 parts of PBT,

0-20 parts of dyestuffs,

1-30 parts of photochromic powders,

3-8 parts of fire retardants,

1-4 parts of antibacterial agents,

0.5-1.5 parts of heat stabilizers,

0.5-1.5 parts of antioxidant,

0.5-1.5 parts of dispersing aiies,

Wherein, the inherent viscosity of the PET is 0.66-0.82dL/g, and the fusing point of PET is 180-253 DEG C, the spy of the PBT Property viscosity be 0.82-1.0dL/g, and the fusing point of PBT be 180-230 DEG C；

2) dry: by raw material PET and PBT be dried, drying temperature is 95-105 DEG C, and vacuum degree≤- 0.08MPa is done The dry time is 6-12 hours；

3) it mixes: heat stabilizer, antioxidant, dispersing aid and the photochromic powder in raw material is premixed, and suitably add Temperature forms layer protecting film on photochromic powder, later with the PET and PBT after drying and the other components in raw material It puts into batch mixer together, is sufficiently stirred and mixes and obtain mixture；

4) it is granulated: obtained mixture is put into double screw extruder, drawn through circular hole die extrusion, sink cooling, tie rod Cylindrical type particle is cut into pelleter；The double screw extruder is furnished with vacuum evacuation device, the major diameter of the double screw extruder Than being not less than 40:1, technological temperature when extrusion is 165-240 DEG C.

Preferably, the inherent viscosity of the PET is 0.82dl/g, and the inherent viscosity of the PBT is 1dl/g.

Preferably, the dyestuff is one of anthraquinone dye, heterocyclic solvent dye, methylene base class solvent dye or several Kind.

Preferably, the photochromic powder is spiro-pyrans class, diarylethene, the liquor-saturated class of fulgenic acid, discoloration microcapsules One or more of.

Preferably, the fire retardant of stating is in aryl phosphate alkyl ester, brominated triazine, antimony oxide, brominated epoxy resin One or more.

Preferably, the antibacterial agent is nano silver ion antibiotic agent.

Preferably, the dispersing aid is ethylene bis stearic acid amide, titanate coupling agent, silane coupling agent, silicone One or more of auxiliary agent.

Advantages and advantages of the present invention are to provide a kind of preparation method of photochromic fibre master batch, preparation Master batch is suitable for the production of photochromic fibre, can solve that existing that photochromic fibre bring is made is lasting using coating way Property difference and the problem of environmental pollution；Also, the present invention is by addition fire retardant and antibacterial agent, so that master batch has good resistance Performance and anti-microbial property are fired, there is wide application prospect.

Specific embodiment

With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more Add and clearly demonstrate technical solution of the present invention, and not intended to limit the protection scope of the present invention.

The technical solution that the present invention embodies is:

A kind of preparation method of photochromic fibre master batch, includes the following steps:

1) feeding: the following raw material is taken by weight:

10-90 parts of PET,

0-40 parts of PBT,

0-20 parts of dyestuffs,

1-30 parts of photochromic powders,

3-8 parts of fire retardants,

1-4 parts of antibacterial agents,

0.5-1.5 parts of heat stabilizers,

0.5-1.5 parts of antioxidant,

0.5-1.5 parts of dispersing aiies,

Wherein, the inherent viscosity of the PET is 0.82dL/g, and the fusing point of PET is 180-253 DEG C, the inherent viscosity of the PBT For 1.0dL/g, and the fusing point of PBT is 180-230 DEG C；

2) dry: by raw material PET and PBT be dried, drying temperature is 95-105 DEG C, and vacuum degree≤- 0.08MPa is done The dry time is 6-12 hours；

3) it mixes: heat stabilizer, antioxidant, dispersing aid and the photochromic powder in raw material is premixed, and suitably add Temperature forms layer protecting film on photochromic powder, later with the PET and PBT after drying and the other components in raw material It puts into batch mixer together, is sufficiently stirred and mixes and obtain mixture；

4) it is granulated: obtained mixture is put into double screw extruder, drawn through circular hole die extrusion, sink cooling, tie rod Cylindrical type particle is cut into pelleter；The double screw extruder is furnished with vacuum evacuation device, the major diameter of the double screw extruder Than being not less than 40:1, technological temperature when extrusion is 165-240 DEG C.

Above-mentioned dyestuff is one or more of anthraquinone dye, heterocyclic solvent dye, methylene base class solvent dye.

Above-mentioned photochromic powder is one of spiro-pyrans class, diarylethene, the liquor-saturated class of fulgenic acid, discoloration microcapsules Or it is several.

Above-mentioned fire retardant is one of aryl phosphate alkyl ester, brominated triazine, antimony oxide, brominated epoxy resin or several Kind.

Above-mentioned antibacterial agent is nano silver ion antibiotic agent.

Above-mentioned dispersing aid is ethylene bis stearic acid amide, in titanate coupling agent, silane coupling agent, silicone analog assistant It is one or more of.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.