Preparation method of melt-drip resistant inflaming retarding polyester fiber

A flame-retardant polyester and anti-droplet technology, which is applied in the manufacture of fire-retardant and flame-retardant filaments, fiber processing, and single-component polyester rayon, etc., can solve the problems of unsatisfactory effect, complicated preparation process and increased fiber production cost. and other problems, to achieve significant economic and social benefits, simple production process, and convenient industrial production.

Inactive Publication Date: 2009-11-18
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Related patents such as Chinese patents CN 008004393.0, CN 02109909.X, CN 101200820A, Patent Cooperation Treaty (PCT) WO 095/20593, Japanese Patent Application Hei 4-364196, etc., this method has permanent flame retardancy, but this type of polyester and poly Ester fiber is a dripping type when it is flame retardant, it is easy to cause secondary fires, and its application is limited
Chinese patent CN 101139435A adds organophosphorus and organosilicon monomers in the esterification or polycondensation stage of synthetic polyester to obtain flame-retardant polyester fibers, and has certain anti-dripping properties (that is, anti-dripping properties), but the effect is not good. Ideal, and the use of this method increases the difficulty of subsequent fiber manufacturing and processing, resulting in a significant increase in fiber production costs
Chinese patent CN 101376739A obtain

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) Mixing: 100g of polyester chips are put into a vacuum oven to dry and taken out, mixed evenly with 2g of benzomelamine in a twin-screw extruder, and cut into anti-droplet flame-retardant polyester chips;

[0031] (2) Melt spinning: put the anti-droplet flame-retardant polyester chip into a vacuum oven to dry, and then refer to the conventional polyester fiber melt-spinning method to melt-spin to obtain the primary anti-droplet flame-retardant polyester Ester fiber;

[0032] (3) fiber alkaline solution treatment: get paraformaldehyde, configure and obtain the formaldehyde solution of 70% concentration by weight, get 6g formaldehyde solution and place in the reaction vessel, adjust the solution pH value to be 8 with triethanolamine, control the solution temperature Constant at 50°C. The reactor can realize the contact mixing of the fiber and the solution through self-vibration, and the primary anti-droplet flame-retardant polyester fiber is placed in the reaction ves...

Embodiment 2

[0039] (1) Mixing: 100g of polyester chips are put into a vacuum oven to dry and taken out, mixed evenly with 10g of benzomelamine in a twin-screw extruder, cut into anti-melting droplet flame retardant polyester chips;

[0040] (2) Melt spinning: put the anti-droplet flame-retardant polyester chip into a vacuum oven to dry, and then refer to the conventional polyester fiber melt-spinning method to melt-spin to obtain the primary anti-droplet flame-retardant polyester Ester fiber;

[0041] (3) fiber alkaline solution treatment: get the formaldehyde solution that the weight percent concentration is 35%, configure and obtain the formaldehyde solution that the weight percent concentration is 20%, get 800g formaldehyde solution and place reaction vessel, adjust solution pH with diethanolamine The value is 9, and the temperature of the solution is controlled to be constant at 35°C. The reactor can realize the contact mixing of the fiber and the solution through self-vibration, and...

Embodiment 3

[0047] (1) Mixing: 100g polyester chips are put into a vacuum oven to dry and taken out, mixed evenly with 30g benzomelamine in a twin-screw extruder, cut into anti-melt drop flame retardant polyester chips;

[0048] (2) Melt spinning: put the anti-droplet flame-retardant polyester chip into a vacuum oven to dry, and then refer to the conventional polyester fiber melt-spinning method to melt-spin to obtain the primary anti-droplet flame-retardant polyester Ester fiber;

[0049] (3) Fiber alkaline solution treatment: get the formaldehyde solution that is 35% by weight concentration, configure the formaldehyde solution that is 10% by weight concentration, get 1500g formaldehyde solution and place in the reaction vessel, adjust the solution with sodium hydroxide The pH value was 9, and the temperature of the solution was kept constant at 40°C. The reactor can realize the contact mixing of the fiber and the solution through self-vibration, and the primary anti-droplet flame-retar...

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Abstract

The invention discloses a preparation method of melt-drip resistant inflaming retarding polyester fiber, comprising the following steps: mixing melt-drip resistant agent with a polyester slice, performing melt spanning, and processing and post-processing the mixture by alkaline solution and acid solution to form the melt-drip resistant inflaming retarding polyester fiber. The limited oxygen index of the melt-drip resistant inflaming retarding polyester fiber of the invention is 31-34, thereby melt dripping can not occur when the melt-drip resistant inflaming retarding polyester fiber burn, which can resist melt dripping effectively without releasing poisonous gas or smoke. Spinning melt-drip resistant inflaming retarding polyester fiber in accordance with routine melt spinning technology of the polyester fiber, the spanning is simple and easy to operate. The melt-drip resistant inflaming retarding polyester fiber can be directly and widely used as coatings, curtains, bedding articles, interior decoration and various special materials and the like, and has significant economic benefit and social benefit.

Description

technical field [0001] The invention relates to a preparation method of polyester fiber, in particular to a preparation method of droplet-resistant and flame-retardant polyester fiber. Background technique [0002] As the largest synthetic fiber, polyester fiber is used in a wide range of fields, such as clothing, curtains, bedding, interior decoration and various special materials. The limiting oxygen index of polyester fiber is only about 21. It is a flammable and flammable fiber, and there is a great hidden danger of fire when it is used. [0003] More importantly, polyester fibers and various products made of polyester fibers will melt and drip when burned or at high temperature, which can easily cause burns and cause larger fires. The research on falling and flame retardancy has very important practical value. [0004] At present, there are generally three types of flame retardant modification methods for polyester fibers: [0005] (1) In the stage of transesterifica...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/07D06M13/358
Inventor 唐红艳郭玉海陈建勇张华鹏冯新星李昌垒
Owner ZHEJIANG SCI-TECH UNIV
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