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Olefin polymer, blend fiber as well as preparation method and application of olefin polymer and blend fiber

A technology of olefin polymers and olefin homopolymers, applied in the field of olefin polymers, can solve the problems of weak strength of wet frozen collagen filaments, poor spinnability and poor uniformity of ultra-high molecular weight polyethylene, and achieve good spinnability effects

Inactive Publication Date: 2013-11-27
ZANNAN SCITECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings in processing technology such as poor spinnability of the existing ultra-high molecular weight polyethylene, weak strength and poor uniformity of wet frozen collagen filaments, and provide a new Olefin polymer suitable for preparing special fibers and preparation method thereof

Method used

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  • Olefin polymer, blend fiber as well as preparation method and application of olefin polymer and blend fiber
  • Olefin polymer, blend fiber as well as preparation method and application of olefin polymer and blend fiber
  • Olefin polymer, blend fiber as well as preparation method and application of olefin polymer and blend fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The preparation of embodiment 1 olefin polymer

[0064]

[0065] The liquid reactants cycloheptene (10 g) and n-heptane solvent (150 mL) were added into a 250 mL three-necked flask filled with argon, and after argon replacement and oxygen removal, Jane's catalyst (compound 2) (2 mg) was added. After 5 minutes, the reaction liquid became viscous, and the reaction temperature was controlled at 30° C., and the reaction time was 12 hours. After the polymerization reaction, the reaction solution was slowly introduced into rapidly stirred acetone for precipitation, and a large amount of white flocculent solids were produced. After the product is filtered and washed for 1-2 times, it is dried in a vacuum oven to obtain 8.9g of white solid high molecular weight olefin polymer (15a), and its viscosity measured after dissolving with toluene is 0.57, and the weight average molecular weight is 550,000 (n is about 5730 ), yield 89%.

[0066] After testing, the olefin polymer (1...

Embodiment 2

[0068] The preparation of embodiment 2 olefin polymer

[0069]

[0070] The liquid raw material cycloheptene (10g) was added in a 250mL three-necked flask filled with argon, and after passing through argon to replace and exhaust oxygen, 1,2-dichloroethane ( DCE) solution (0.1 mL). After 5 minutes, the reaction solution became viscous and exothermic. The reaction temperature was controlled at 30° C., and the reaction time was 12 hours. After the polymerization reaction is finished, add 150mL of toluene to dissolve, and slowly introduce the dissolved toluene reaction solution into rapidly stirring acetone for precipitation, producing a large amount of white flocculent solid. After the product is filtered and washed for 1-2 times, it is dried in a vacuum oven to obtain 9.2g of white solid macromolecule olefin polymer (15b). After dissolving with toluene, its viscosity measured is 1.53, and the weight-average molecular weight is 1.48 million (n is about 15400 ), yield 92%.

...

Embodiment 3

[0073] The preparation of embodiment 3 olefin polymer

[0074]

[0075] The liquid raw material cyclooctene (1.0kg) and toluene solvent (15L) were added into a 30L three-necked flask filled with argon, and a small amount of Jane's catalyst (compound 2) (2mg) was added after passing through argon to replace and exhaust oxygen. After 5 minutes, the reaction solution became viscous, and the reaction temperature should be controlled at 30°C. After the polymerization reaction, the reaction solution was slowly introduced into rapidly stirred acetone for precipitation, and a large amount of white flocculent solids were produced. After the product was filtered and washed for 1-2 times, it was dried in a vacuum oven to obtain 918g of white solid high molecular weight olefin polymer (17a). After dissolving with toluene, its viscosity was measured to be 0.26, and the weight average molecular weight was 230,000 (n was about 2090). , yield 91.8%.

[0076] After detection, the olefin p...

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Abstract

The invention provides olefin polymers, which are olefin homopolymers formed by structural units shown by a formula I or random copolymers formed by structural units shown by the formula I and a formula II, wherein m ranges from 0 to 8, m' ranges from 0 to 6 and m is not equal to m'+2; and the number of the structural units of the formula I and the number of the structural units of the formula IIrange from 1,000 to 20,000 and from 1,000 to 10,000 respectively. The invention also provides blended fibers, which contain superhigh molecular weight polyethylene and the olefin polymers. The invention also provides the preparation methods and use of the olefin polymers and the blended fibers. The blended fibers, which are provided by the invention, overcome the drawback that the spinnability ofsuperhigh molecular weight polyethylene and the strength of frozen collagenous fibrils are low, the tensile strength and modulus of the fibers are improved, and the blended fibers have high strength,high modulus, high impact resistance and high uniformity.

Description

[0001] This patent application is the application number: CN201010282144.2, the application date: 2010.9.8, the name is: "a class of olefin polymers and a class of blended fibers and their preparation methods and applications", a divisional application of the patent. technical field [0002] The present invention relates to a kind of olefin polymer, its preparation method and application. The invention also relates to a kind of blended fiber, its preparation method and application. Background technique [0003] Ultra-high molecular weight polyethylene (UHMWPE) fiber is a high-strength and high-modulus organic fiber prepared by the gel spinning super-stretching technology first successfully developed by the Dutch DSM company in the 1980s. It is the third generation after carbon fiber and aramid fiber. High-performance fibers. The ultra-high molecular weight polyethylene used to make fibers has a molecular weight range of 1 million to 8 million. [0004] Ultra-high molecular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/08
Inventor 詹正云
Owner ZANNAN SCITECH CO LTD
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