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Lignin modified PPC (chlorinated polypropylene) biodegradable plastic and preparation method thereof

A technology for biodegrading plastic and lignin is applied in the field of lignin-modified PPC biodegradable plastic and its preparation, which can solve problems such as non-degradation and white pollution, and achieve the effects of being beneficial to market promotion, low production cost and convenient operation.

Active Publication Date: 2017-05-24
SHANGHAI CHANGFA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since most of the plastic products cannot be degraded after being discarded, they exist for a long time, and the continuous accumulation has caused serious white pollution. Environmentally friendly plastic products are becoming more and more urgent and have aroused extensive interest of researchers. Among them, degradable resins have become a research hotspot due to their degradation characteristics and economic characteristics.

Method used

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  • Lignin modified PPC (chlorinated polypropylene) biodegradable plastic and preparation method thereof
  • Lignin modified PPC (chlorinated polypropylene) biodegradable plastic and preparation method thereof
  • Lignin modified PPC (chlorinated polypropylene) biodegradable plastic and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation of embodiment 1 lignin modified PPC biodegradable plastics

[0033] (1) In terms of parts by weight, the proportioning ratio of each raw material used is as follows:

[0034]

[0035]

[0036] (2) Concrete preparation method, comprising the following steps:

[0037] (1) Dry a certain amount of PPC and lignin powder (150 mesh) at 25°C and 0-5000Pa for 2.5h;

[0038] (2) Add dry PPC, lignin powder and bisphenol A, dibutyl hydroxytoluene, triethyl citrate, epoxy soybean oil, zinc stearate into the high mixer, and control the material temperature to 100- 105°C, mix for 15 minutes, the speed is 900r / min;

[0039] (3) extruding and granulating the obtained mixed material through a twin-screw extruder, controlling the extrusion temperature to be 180-190° C. to obtain lignin-PPC composite plastic particles;

[0040] (4) The lignin-PPC composite plastic is injection-molded into standard injection-molded parts according to GB / T 1040.2-2006 through an inje...

Embodiment 2

[0041] Embodiment 2 Preparation of lignin-modified PPC biodegradable plastics

[0042] (1) In terms of parts by weight, the proportioning ratio of each raw material used is as follows:

[0043]

[0044] (2) Concrete preparation method, comprising the following steps:

[0045] (1) Dry a certain amount of PPC and lignin (150 mesh) at 25°C and 0-5000Pa for 3 hours;

[0046] (2) Add dry PPC, lignin and acetyl tri-n-butyl citrate, resorcinol dihydroxyethyl ether, butyl hydrodiphenol, epoxy soybean oil, calcium stearate into the high mixer , control the material temperature to 110°C, mix for 20 minutes, and the speed is 1000r / min;

[0047](3) extruding and granulating the obtained mixed material through a twin-screw extruder, controlling the extrusion temperature to be 200-210° C. to obtain lignin-PPC composite plastic particles;

[0048] (4) The lignin-PPC composite plastic is injection-molded into a standard injection-molded part according to GB / T 1040.2-2006 through an inje...

Embodiment 3

[0049] Example 3 Preparation of lignin-modified PPC biodegradable plastics

[0050] (1) In parts by weight, the proportioning ratio of each raw material used is as follows:

[0051]

[0052] (2) Concrete preparation method, comprising the following steps:

[0053] (1) Dry a certain amount of PPC and lignin (200 mesh) at 25°C and 0-5000Pa for 3 hours;

[0054] (2) Add dried PPC, lignin, maleic anhydride, glycerol triacetate, butyl hydrodiphenol, 1,4-butanediol, zinc stearate to the high mixer to control the material temperature at 105°C, mix for 25 minutes, and the speed is 1000r / min;

[0055] (3) extruding and granulating the obtained mixed material through a twin-screw extruder, controlling the extrusion temperature to be 220-225° C. to obtain lignin-PPC composite plastic granules;

[0056] (4) The lignin-PPC composite plastic is injection molded into standard injection molded parts according to GB / T 1040.2-2006 through an injection molding machine, and the injection mo...

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Abstract

The invention discloses a preparation method of lignin modified PPC (chlorinated polypropylene) biodegradable plastic, which comprises the following steps: (1) performing vacuum drying on polycarbonate and lignin, (2) adding dried polycarbonate, the dried lignin, an chain extender, an antioxidant, a plasticizer, a lubricant and a heat stabilizer into a high-speed mixer for intensive mixing, (3) extruding and prilling a mixed material via a twin-screw extruder to form lignin-PPC composite plastic particles, and (4) performing injection molding on the lignin-PPC composite plastic particle at a certain temperature to form the lignin modified PPC biodegradable plastic. The biomass material lignin and lignin-PPC composite plastic prepared by compound modification are introduced to meet requirements of complete degradation; and moreover, mechanical properties of pure PPC resin are improved; the cost of the plastic is effectively lowered; and the plastic is more advantageous for market popularization.

Description

technical field [0001] The invention relates to the technical field of biological plastics, in particular to a lignin-modified PPC biodegradable plastic and a preparation method thereof. Background technique [0002] At present, with the continuous development of the national economy, the consumption of plastic products is increasing, and synthetic plastics are playing an increasingly important role in production and life. However, since most of the plastic products cannot be degraded after being discarded, they exist for a long time, and the continuous accumulation has caused serious white pollution. Environmentally friendly plastic products are becoming more and more urgent and have aroused extensive interest of researchers. Among them, degradable resins have become a research hotspot due to their degradation characteristics and economic characteristics. [0003] Polycarbonate (PPC) refers to the alternating aliphatic polycarbonate obtained by copolymerization under the a...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L97/00C08L91/00C08K5/13C08K5/11C08K5/098C08K5/1539C08K5/103C08K5/053C08K5/526
CPCC08K2201/014C08L69/00C08L2201/06C08L2205/03C08L97/005C08L91/00C08K5/13C08K5/11C08K5/098C08K5/1539C08K5/103C08K5/053C08K5/526
Inventor 施晓旦邵威金霞朝
Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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