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Microencapsulated red phosphorus flame-retardant polypropylene fiber and preparation method thereof

A technology of microencapsulated red phosphorus and flame-retardant polypropylene fiber, which is applied in the field of flame-retardant fibers, can solve the problems such as no reports of microencapsulated red phosphorus flame-retardant polypropylene fibers, etc., and achieve less addition, good thermal stability, and good compatibility Effect

Inactive Publication Date: 2011-02-02
郑庆云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, there is no report of microencapsulated red phosphorus flame-retardant polypropylene fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Raw material composition

[0030] A kind of microcapsule red phosphorus flame-retardant polypropylene fiber, its raw material mass percentage is,

[0031] Microencapsulated Red Phosphorus 1%

[0032] Polypropylene chips 99%

[0033] The microcapsule red phosphorus model is Doher-6100; appearance: reddish particles, P content: %≥40 volatile matter≤1%, decomposition temperature: ≥400°C, capsule core density at 25°C: 0.69g / cm 3 , Moisture absorption: ≤0.5%;

[0034] 2. Preparation method

[0035] A preparation method of microencapsulated red phosphorus flame-retardant polypropylene fiber, the specific steps are:

[0036] (1) microcapsule red phosphorus and polypropylene fiber slices are mixed evenly, and are spun according to the chemical fiber spinning process;

[0037] (2) Heat the spinneret at a temperature of 260°C to 300°C. After spinning, the cooling air temperature is 28°C to 32°C, the wind speed is 1 m / s to 2 m / s, and the drafting speed is 1200 m / min to 140...

Embodiment 2

[0041] 1. Raw material composition

[0042] A kind of microcapsule red phosphorus flame-retardant polypropylene fiber, its raw material mass percentage is,

[0043] Microencapsulated Red Phosphorus 5%

[0044] Polypropylene chips 95%

[0045] The microcapsule red phosphorus model is Doher-6100; appearance: reddish particles, P content: %≥40 volatile matter≤1%, decomposition temperature: ≥400°C, capsule core density at 25°C: 0.69g / cm 3 , Moisture absorption: ≤0.5%;

[0046] 2. Preparation method

[0047] A method for preparing microencapsulated red phosphorus flame-retardant polypropylene fibers is the same as in Example 1, wherein the spinneret is trilobal in shape.

[0048] The denier of the final microcapsule red phosphorus flame-retardant polypropylene fiber is 0.5 denier.

Embodiment 3

[0050] 1. Raw material composition

[0051]A kind of microcapsule red phosphorus flame-retardant polypropylene fiber, its raw material mass percentage is,

[0052] Microencapsulated Red Phosphorus 8%

[0053] Polypropylene chips 92%

[0054] The microcapsule red phosphorus model is Doher-6100; appearance: reddish particles, P content: %≥40 volatile matter≤1%, decomposition temperature: ≥400°C, capsule core density at 25°C: 0.69g / cm 3 , Moisture absorption: ≤0.5%;

[0055] 2. Preparation method

[0056] A method for preparing microencapsulated red phosphorus flame-retardant polypropylene fibers is the same as in Example 1, wherein the spinneret is cross-shaped.

[0057] The denier of the final microcapsule red phosphorus flame-retardant polypropylene fiber is 1.5 denier.

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Abstract

The invention relates to a microencapsulated red phosphorus flame-retardant polypropylene fiber and a preparation method thereof. The microencapsulated red phosphorus flame-retardant polypropylene fiber comprises the following raw materials in percentage by mass: 1 to 20 percent of microencapsulated red phosphorus and 80 to 99 percent of polypropylene chip. The preparation method comprises the following steps of: uniformly mixing the microencapsulated red phosphorus and the polypropylene chips, and spinning according to a chemical fiber spinning process; and heating a spinneret plate to 260 to 300 DEG C, blowing air to cool the spinneret plate to 28 to 32 DEG C after drawing at the air speed of 1 to 2 meters per second and the drafting speed of 1,200 to 1,400 meters per minute, and performing bundling and two-dimensional helical coiling processing for cutting on filaments to obtain the microencapsulated red phosphorus flame-retardant polypropylene fibers. The microencapsulated red phosphorus flame-retardant polypropylene fiber and the method have the advantages that: the flame retardant performance is high, the adding amount is small, the spinning performance is improved, the flame-retardant effect is good, the method is simple and convenient because the conventional process can be used, and the fiber has wide application.

Description

【Technical field】 [0001] The invention relates to the technical field of flame-retardant fibers, in particular to a microcapsule red phosphorus flame-retardant polypropylene fiber and a preparation method thereof. 【Background technique】 [0002] Generally, flame retardants can be divided into two categories: organic flame retardants and inorganic flame retardants according to their chemical composition. Organic flame retardants are divided into two series: phosphorus-based and halogen-based. The former is mostly liquid at room temperature, has a large amount of smoke, and is toxic. It requires a large amount of H and O elements in the flame-retardant structure to dehydrate and form a carbonized layer, so its application is greatly limited. Halogenated flame retardants mainly include chlorine and bromine. From the perspective of usage, the use of brominated flame retardants is more common. This is mainly because bromide is relatively less corrosive and toxic after thermal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41D13/00D01D5/253D01F1/07E04F13/075D01F6/46
Inventor 李胜春郑庆云武荣丽刘立起
Owner 郑庆云
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