CN101701384A

CN101701384A - Polylactide metal fiber

Info

Publication number: CN101701384A
Application number: CN200910152449A
Authority: CN
Inventors: 徐关祥
Original assignee: Jiangsu Yingxiang Chemical Fiber Co Ltd
Current assignee: Jiangsu Yingxiang Chemical Fiber Co Ltd
Priority date: 2009-09-14
Filing date: 2009-09-14
Publication date: 2010-05-05

Abstract

The invention relates to a polylactide metal fiber fabric which is characterized in that polylactide with high molecular weight is synthesized firstly, metal fiber and the polylactide are blended and then spun to obtain the polylactide with a specification of 1.56-1.65detx*38 mm and the metal fiber with a spinning specification of 1.56-2.65 detx*38 mm, and the degradable metal fabric is weaved by the procedures of blowing, cotton carding, drawing, spinning, weaving, dyeing and the like.

Description

Polylactide metal fiber

Technical field

The present invention relates to the fabric lining preparation field, particularly a kind of polylactide metal fiber lining method.

Background technology

In today of people's growing interest environmental protection, biodegradable polymer (plastics, rubber, fiber etc.) has become the focus of various countries, world today research.The kind of biodegradable fiber lining is various day by day, numerous areas such as that its application relates to is medical, take, fishery, building, health, decoration, industrial treatment.In the degradable high polymer material, aliphatic polyester can be synthetic by chemical process, and industrialization is arranged, industrialization prospect, and it is maximum also to be that people study.The PLA fusing point is higher than 150 ℃, is difficult at normal temperatures and pressures decomposing, and fusing, distortion has good application potential quality.But the degradable aliphatic polyester fiber also exists the shortcoming of self, and fusing point is low, and intensity is little, and the synthetic difficulty of high molecular weight polyesters limits its processing and application.

Summary of the invention

In order to address the above problem, the one, improve degradable aliphatic polyester synthetic high polymer amount, the 2nd, with the metal fibre blending, rely on the characteristic of metal to improve the intensity of polyester fiber, obtain degradable metal composite fiber lining.

A kind of polylactide metal fiber lining, the PLA of synthetic high polymer amount at first, select metal fibre and PLA to carry out blending then, the PLA specification that spinning obtains: 1.56～1.65detx * 38mm, metal fibre spinning specification: 1.56～2.65detx * 38mm, through blowing, comb and parallel cotton fibers prior to spinning, drafting, spun yarn, weave cotton cloth, operation such as dyeing is woven into the degradable metal face fabric.

The PLA of synthetic high polymer amount: raw material is a lactide, and catalyst is a stannous chloride, and the addition of stannous chloride is 600 * 10 of a lactide amount ^-6, continuous polymerization technique is finished by four reactors, the synthesis technique of PLA:

Condition	Reactor I	Reactor II	Reactor III	Reactor IV
Condition	Reactor I	Reactor II	Reactor III	Reactor IV	Reaction temperature/℃	??140～150	??160～180	??230～240	??230～240
Reaction pressure/Pa	??(1.3～1.5)×10 ⁵	??1.0×10 ⁵	??2500～3000	??50～100	Reaction temperature/℃	??140～150	??160～180	??230～240	??230～240
Reaction pressure/Pa	??(1.3～1.5)×10 ⁵	??1.0×10 ⁵	??2500～3000	??50～100	The time of staying/min	??60～90	??60～90	??50～70	??120～150

The polylactic acid melt spinning through just spin, stretch together, two roads stretch, curl, finally be shaped into silk.Just spinning temperature is 245 ℃, and speed is 1000～2000m/min, and the draw ratio that stretches is 2.5～3.5 together, and temperature is 120 ℃, 90～100 ℃ of heat setting temperatures; The draw ratio that two roads stretch is 1.15～1.50, and temperature is 110 ℃, and curling temperature is 70～80 ℃, through HEAT SETTING fiber temperature is reached below 45 ℃ again, cuts off spinning specification: 1.56～1.65detx * 38mm.

Select metal fibre and PLA to carry out blending, metal fibre comprises silver-colored fiber, copper fiber, golden fiber, stainless steel fibre, steel fibre etc., metal fibre spinning specification: 1.56～2.65detx * 38mm.The shared quality of acid fiber by polylactic is 90～95%, and the shared quality of metal fibre is 5～10%, through blowing, comb and parallel cotton fibers prior to spinning, drafting, spun yarn, weave cotton cloth, operation such as dyeing is woven into lining.

Progressive meaning of the present invention is:

The PLA of synthetic high polymer amount and with the metal fibre blending, the degradable aliphatic polyester lining that makes has mechanical strength preferably, TENSILE STRENGTH also has functions such as metallic luster, Memorability, antibiotic, antistatic.

The specific embodiment

The present invention relates to a kind of polylactide metal fiber lining, the PLA of synthetic high polymer amount at first, select metal fibre and PLA to carry out blending then, the PLA specification that spinning obtains: 1.56～1.65detx * 38mm, metal fibre spinning specification: 1.56～2.65detx * 38mm, through blowing, comb and parallel cotton fibers prior to spinning, drafting, spun yarn, weave cotton cloth, operation such as dyeing is woven into the degradable metal face fabric.

Embodiment

Condition	Reactor I	Reactor II	Reactor III	Reactor IV
Condition	Reactor I	Reactor II	Reactor III	Reactor IV	Reaction temperature/℃	??140～150	??160～180	??230～240	??230～240
Reaction pressure/Pa	??1.4×10 ⁵	??1.0×10 ⁵	??2700	??70	Reaction temperature/℃	??140～150	??160～180	??230～240	??230～240
Reaction pressure/Pa	??1.4×10 ⁵	??1.0×10 ⁵	??2700	??70	The time of staying/min	??70	??70	??70	??130

The high molecular weight polylactic acid melt direct spinning that polymerization obtains, through just spin, stretch together, two roads stretch, curl, finally be shaped into silk, just spinning temperature is 245 ℃, speed is 1000～2000m/min, the draw ratio that stretches is 2.5～3.5 together, temperature is 120 ℃, 90～100 ℃ of heat setting temperatures; The draw ratio that two roads stretch is 1.15～1.50, and temperature is 110 ℃, and curling temperature is 70～80 ℃, through HEAT SETTING fiber temperature is reached below 45 ℃ again, cuts off.

Claims

1. polylactide metal fiber lining is characterized in that:

The PLA of synthetic high polymer amount at first, carry out melt spinning then, successively through stretching together, HEAT SETTING, two roads stretch, curl, HEAT SETTING, cut off operation, just spin 245 ℃ of polylactic acid melt draft temperatures, spinning speed 1000～2000m/min, the draw ratio 2.5～3.5 that stretches for one, 120 ℃ of draft temperatures, 90～100 ℃ of heat setting temperatures, the draw ratio 1.15～1.50 that two roads stretch, 110 ℃ of draft temperatures, curling temperature is 70～80 ℃, through HEAT SETTING fiber temperature is reached below 45 ℃ again, cut off, PLA is spun to the fiber of 1.56～1.65detx * 38mm;

Select metal fibre and PLA to carry out blending at last, the shared quality of acid fiber by polylactic is 90～95%, and the shared quality of metal fibre is 5～10%, through blowing, comb and parallel cotton fibers prior to spinning, drafting, spun yarn, weave cotton cloth, operation such as dyeing is woven into lining.

2. according to claim 1, its characteristic is: the metal of selection comprises silver-colored fiber, copper fiber, golden fiber, stainless steel fibre, steel fibre etc., metal fibre spinning specification: 1.56～2.65detx * 38mm.

3. according to claim 1, its characteristic is: the PLA of synthetic high polymer amount: raw material is a lactide, and catalyst is a stannous chloride, and the addition of stannous chloride is 600 * 10 of a lactide amount ^-6