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Cellulose-containing resin composition and cellulosic ingredient

A resin composition and cellulose fiber technology, applied in the field of cellulose preparations, can solve the problems of increased weight and high specific gravity of resin moldings

Active Publication Date: 2018-11-23
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A resin composition in which a thermoplastic resin is reinforced with a reinforcing material such as glass fiber, carbon fiber, talc, clay, etc. as an inorganic filler has a high specific gravity. Therefore, there is a problem that the weight of a resin molded article obtained by using the resin composition increases. topic

Method used

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  • Cellulose-containing resin composition and cellulosic ingredient
  • Cellulose-containing resin composition and cellulosic ingredient
  • Cellulose-containing resin composition and cellulosic ingredient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0504] [Raw materials and evaluation methods]

[0505] Hereinafter, the raw materials and evaluation methods used will be described.

[0506] 《Thermoplastic resin》

[0507] Polyamide

[0508] Polyamide 6 (hereinafter referred to as PA)

[0509] "UBE Nylon 1013B" available from Ube Industries, Ltd.

[0510] The carboxyl end group ratio is ([COOH] / [all end groups])=0.6

[0511] Polypropylene

[0512] Homopolypropylene (hereinafter referred to as PP)

[0513] "Prime Polypro J105B" available from PRIME POLYMER

[0514] MFR measured at 230°C according to ISO1133=9.0g / 10min

[0515] Maleic acid modified polypropylene (hereinafter referred to as MPP)

[0516] "UMEX 1001" available from Sanyo Chemical Industry Co., Ltd.

[0517] MFR measured at 230°C according to ISO1133 = 230g / 10min

[0518] "Cellulose Composition"

[0519] Cellulose whiskers (hereinafter sometimes abbreviated as CW)

[0520] Commercially available DP pulp (average degree of polymerization: 1600) was trim...

Embodiment A1～46 and comparative example A1～10

[0638] Polyamide, polypropylene, acid-modified polypropylene, cellulose whiskers, and cellulose fibers were mixed in the ratios recorded in Tables A3 to 5, and the TEM48SS extruder manufactured by Toshiba Machine Co., Ltd. was used at a screw speed of 350rpm, Melt-kneading was carried out at a discharge rate of 140 kg / hr, and after vacuum devolatilization, it was extruded in a strand form from a die, cooled in a water bath, and granulated. The pellets were cylindrical in shape with a diameter of 2.3 mm and a length of 5 mm.

[0639] They were evaluated according to the above-mentioned evaluation methods.

[0640]

[0641]

[0642]

[0643]

[0644] Based on polyamide resin, the ratio of cellulose fibers and cellulose whiskers was changed.

[0645] It can be seen that compared with Comparative Example A2 in which cellulose fibers were used alone, in Example A5 in which cellulose whiskers were used in combination, the defect rate, fluidity (minimum filling pressure)...

Embodiment A47～57

[0653] With respect to 100 mass parts of polyamides, mix 15 mass parts of cellulose whiskers, 5 mass parts of cellulose fibers and 5 mass parts of organic components shown in Table A6, utilize the TEM48SS extruder manufactured by Toshiba Machine Co., Ltd., at the screw speed Melt-kneading was performed at 350 rpm and a discharge rate of 200 kg / hr, and after vacuum devolatilization, it was extruded from a die in a strand form, cooled in a water bath, and granulated. The pellets were cylindrical in shape with a diameter of 2.3 mm and a length of 5 mm.

[0654] They were evaluated according to the above-mentioned evaluation methods.

[0655]

[0656] Using various substances as organic components, as a result, in Examples A49 to 52 and 54, the fender defect rate showed zero. In addition, in these examples, improvements in the rate of increase in the tensile yield strength, the expansion rate of the molded sheet, and the coefficient of variation of the coefficient of linear ex...

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Abstract

The present invention relates to: a resin composition which shows satisfactory flowability and mechanical properties; a cellulosic ingredient which gives the resin composition; and resin pellets and amolded resin object which are formed from the resin composition. One embodiment of the resin composition comprises a thermoplastic resin and a cellulosic component, wherein the cellulosic component comprises cellulose whiskers and cellulose fibers. Another embodiment of the resin composition comprises a thermoplastic resin and a cellulosic component, has a coefficient of variation of a linear expansion coefficient of 15% or less and a coefficient of variation of tensile rupture strength of 10% or less. One embodiment of the cellulosic ingredient comprises cellulose particles and an organic component. A still another embodiment of the resin composition comprises a thermoplastic resin, cellulose particles, an organic component, and a surfactant. In a further embodiment, the organic component has a static surface tension of 20 mN / m or higher and a higher boiling point than water.

Description

technical field [0001] The present application relates to cellulose-containing resin compositions and cellulose preparations. Background technique [0002] Thermoplastic resins are widely used in various fields such as automobile parts, electrical / electronic parts, office equipment casings, and precision parts due to their light weight and excellent processing characteristics. However, resin alone has insufficient mechanical properties and dimensional stability in many cases, and composites of resins and various inorganic materials are generally used. [0003] A resin composition in which a thermoplastic resin is reinforced with a reinforcing material such as glass fiber, carbon fiber, talc, clay, etc. as an inorganic filler has a high specific gravity. Therefore, there is a problem that the weight of a resin molded article obtained by using the resin composition increases. topic. [0004] In recent years, cellulose has been used as a new reinforcing material for resins. ...

Claims

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Application Information

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IPC IPC(8): C08L1/02C08L23/26C08L71/02C08L93/04C08L101/00
CPCC08B15/02C08L1/02C08L93/04C08L71/02C08L23/10C08L77/06C08L23/26C08L101/00C08L23/12C08L77/00C08L59/00C08J3/12B29B13/065C08K5/053
Inventor 三好贵章山崎有亮上野功一三田崇史永田员也真田和昭
Owner ASAHI KASEI KK
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