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Manufacturing method of cellulose resin compositions

A technology of resin composition and manufacturing method, which is applied in the field of manufacturing cellulose-based resin compositions, can solve the problems of reduced corn production, cellulose-based resins are not resistant to impact, and insufficient flow, and achieve excellent mixing performance and promote The effect of uniform mixing and preventing the remaining of air bubbles

Active Publication Date: 2011-09-21
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems in the production volume of grain storage areas such as Australia, where the production volume of corn has been greatly reduced due to water shortages due to the impact of climate change due to global warming, or due to the impact of speculative trading. Insufficient circulation problem
[0007] In addition, cellulose-based resins are not impact-resistant and are easily damaged

Method used

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  • Manufacturing method of cellulose resin compositions
  • Manufacturing method of cellulose resin compositions
  • Manufacturing method of cellulose resin compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Next, what kind of physical properties and state can be achieved for the manufactured cellulose-based resin composition (hereinafter referred to as the composition) by the examples satisfying the production method of the cellulose-based resin composition of the present invention and the comparative example not satisfied? test to a certain extent. In addition, the test was carried out as follows: a drawing die was installed at the outlet of the kneader, and the linear (rod-shaped) composition extruded from the drawing die was cooled and sheared to produce pellets.

[0071] [raw material]

[0072] Diacetyl cellulose (L-70: manufactured by Daicel Chemical Co., Ltd.) was used as the cellulose-based resin, and polycarbonate (A1700: manufactured by Idemitsu Petrochemical Co., Ltd.) was used as the petroleum-based resin. As a plasticizer, either trimethyl phosphate (manufactured by Daihachi Chemical Co., Ltd.) or diethylene glycol dibenzoate (Rikaflo L A100: manufactured by S...

Embodiment 2

[0077] Example 2 was carried out in the same manner as Example 1 except that only the plasticizer was changed from trimethyl phosphate to diethylene glycol dibenzoate. That is, the influence of changing the plasticizer was examined. The temperature of the resin discharged from the discharge port of the wire drawing die in Example 2 was 262°C.

Embodiment 3

[0079] In Example 3, the raw material composition was such that diacetyl cellulose was 35% by mass, polycarbonate was 50% by mass, and diethylene glycol dibenzoate was 15% by mass. As the conditions of the kneader (twin-shaft kneader 10), except that the shear rate is set to 140 to 436 sec that satisfies the present invention -1 436sec of upper limit -1 Other than that, it carried out similarly to Example 1. The temperature of the resin discharged from the discharge port of the wire drawing die in Example 3 was 270°C.

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Abstract

A manufacturing method of cellulose resin compositions can settle total problems of coloring problem, low modular weight, remaining of unmelted object and incapability of obtaining required physical performance when a mixing roll is used for manufacturing the cellulose resin compositions. According to the manufacturing method of the cellulose resin compositions, the mixing roll squeeze a raw material which comprises a resin material and a plasticizing agent for manufacturing the resin composition, wherein the resin material at least comprises particle-shaped cellulose resins. The manufacturing method of the cellulose resin compositions is characterized in that: a double-shaft mixing mill (10) which is provided with two mixing mill parts on a screw (14) and can adjust a shearing speed of the mixing mill part to a range of 140-436 sec<-1> is used as the mixing roll; in the two mixing roll parts, through setting a temperature of a roller at the mixing roll part at an inlet side to less than a softening temperature of the resin material and setting a temperature of a roller at the mixing roll part at an outlet side to above the softening temperature of the resin material; the mixing roll part at the inlet side is used as a crushing material (22) of the raw material, and simultaneously the mixing roll part at the outlet side is used as a mixing area (26) of the raw material; and one mixing roll is used for performing crushing, dispersing and mixing of the raw material.

Description

technical field [0001] The present invention relates to a method for producing a cellulose-based resin composition, and particularly to a method for producing a cellulose-based resin composition capable of improving the quality of a raw material for melt molding such as injection molding, extrusion molding, and blow molding. Background technique [0002] Polyethylene resins, polypropylene resins, vinyl chloride, polyamides, polystyrene resins, PET (polyethylene terephthalate) Petroleum-based synthetic resins such as ester) resins and polycarbonates. [0003] Wastes of daily necessities and industrial products such as containers and films made of petroleum-based synthetic resins are partially recycled, but most of them are disposed of by burning or landfilling, and a large amount of substances that are considered to be the cause of global warming are released. CO 2 . Against this backdrop, stop adding CO to the atmosphere 2 The idea of ​​carbon neutrality began to be valu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/48C08J3/20B29C47/40B29K1/00B29K69/00B29C48/57B29C48/40
CPCB29C48/57B29C48/40B29B7/489B29B7/92B29B7/483B29B7/488
Inventor 桑原崇喜则常雅彦
Owner FUJIFILM CORP
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