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Master batch and resin composition

A technology of master batch and compound, applied in the field of master batch and resin composition, can solve the problem that resin composite cannot obtain sufficient effect, etc.

Inactive Publication Date: 2022-02-01
NIPPON PAPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the resin composite obtained in Patent Document 1 cannot obtain a sufficient effect of improving elongation.

Method used

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  • Master batch and resin composition
  • Master batch and resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0147] (Preparation of Cellulose Fiber 1)

[0148] 20 kg (solid content 10 kg) of hydrous coniferous unbleached kraft pulp (NUKP) obtained by beating until the CSF became 150 mL was put into a mixer (manufactured by Nippon Coke Industry Co., Ltd., "FM150L"), and stirring was started at 80 dehydration under reduced pressure. The moisture content of the obtained cellulose fibers 1 was measured with an infrared moisture meter. The moisture content was 1.7% by weight. In addition, the weighted average fiber length obtained by measuring the fiber length of a cellulose fiber with a fiber tester (made by L&W company) was 0.90 mm.

[0149] (manufacturing of masterbatch)

[0150] Cellulose fiber 1 (438 g as an absolute dry matter, total cellulose amount of cellulose and hemicellulose: 400 g), powdered compatibilizing resin (MAPP: 120 g) and powdered Urea (200 g: a compounding amount of 50% relative to the amount of cellulose) was put in a polyethylene bag, shaken and mixed. Using a ...

Embodiment 2

[0156] Use NUKP without beating treatment obtained by using a high-speed mixer (manufactured by Kawata Co., Ltd., SMV-Ba) to replace cellulose fiber 1 and change the amount of urea added to 280 g (70% relative to the amount of cellulose) The compounding amount of ) except this, it carried out similarly to Example 1, and performed the manufacture of a masterbatch. In addition, the resin composition was produced in the same manner as in Example 1 except that the obtained masterbatch was used as it was without washing and subsequent drying. In addition, the weighted average fiber length obtained by measuring the fiber length of a cellulose fiber with a fiber tester (made by L&W company) was 0.98 mm.

Embodiment 3

[0158] A masterbatch was produced in the same manner as in Example 1, and a resin composition was produced in the same manner as in Example 1 except that the obtained masterbatch was used as it was without washing and subsequent drying.

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Abstract

A master batch which comprises a compound derived from urea or a derivative thereof, a cellulose fiber modified with an acid-denatured polypropylene and the acid-denatured polypropylene and which satisfies requirements (A) and (B). (A) When heated in a nitrogen atmosphere at a temperature rising rate of 10 DEG C per minute, the weight loss due to heating from 105 DEG C to 300 DEG C is 10-40% based on the weight of absolutely dried master batch, and the weight loss due to heating from 390 DEG C to 880 DEG C is 5-45%. (B) In an infrared absorption spectrum of the master batch, when the maximum peak intensity within a closed section of from 1315 cm-1 to 1316 cm-1 is referred to as a and the maximum peak intensity within an opened section of from 750 cm-1 to 800 cm-1 is referred to as b, then the following expression is satisfied. b / a>0.05.

Description

technical field [0001] The present invention relates to a masterbatch containing micronized cellulose fibers and a method for producing a resin composition containing the masterbatch. Furthermore, the present invention relates to a masterbatch containing micronized acetylated cellulose fibers and a resin composition containing the masterbatch. Background technique [0002] The fine fibrous cellulose obtained by finely untangling plant fibers includes microfibrillar cellulose and cellulose nanofibers, and is a fine fiber with a fiber diameter of about 1 nm to about several 10 μm. Microfibrous cellulose is suitable as a reinforcing material for a resin composition because it is lightweight, has high strength, a high modulus of elasticity, and a low coefficient of linear thermal expansion. [0003] Fine fibrous cellulose is usually obtained in a dispersed state in water, and it is difficult to mix it uniformly with a resin or the like. Therefore, attempts have been made to ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/02C08L1/12C08L51/06C08L23/12C08K5/21C08J3/22
CPCC08J3/226C08L23/12C08J2401/02C08J2401/12C08J2451/06C08J2323/12C08K5/21C08L2205/16C08L1/02C08L1/12C08L51/06C08J3/22C08K7/02C08K9/04C08J5/06C08B15/06C08L1/08C08L23/26C08L2310/00
Inventor 福田雄二郎角田惟绪
Owner NIPPON PAPER IND CO LTD