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Controllable oxidative-biological degradation plastic master batch and preparation method thereof

A technology of biodegradable plastics and plastic masterbatches, which is applied in the field of manufacturing products containing polymer substances or molding materials, can solve the problems that the degradation rate of mulch film cannot be effectively controlled, the use time will be shortened, and the degradation will not be thorough enough to ensure that the degradation can be achieved controlling effect

Active Publication Date: 2014-09-10
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method uses too much calcium carbonate to shorten the service time and deviate in mechanical properties, and without adding biodegradation, the degradation will not be thorough enough
[0006] For purely oxidatively degradable plastics (photodegradable plastics), they cannot be degraded in the absence of light, leading to problems such as plastics buried in soil for agricultural mulch films that cannot be degraded; for places with unstable environments or insufficient light, the degradation of mulch films The speed cannot be effectively controlled

Method used

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  • Controllable oxidative-biological degradation plastic master batch and preparation method thereof
  • Controllable oxidative-biological degradation plastic master batch and preparation method thereof
  • Controllable oxidative-biological degradation plastic master batch and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0104] A preparation method of controllable oxidative biodegradable plastic masterbatch, comprising the steps of:

[0105] (1) Put 40-70 parts of inorganic filler powder and 1-70 parts of biodegradation accelerator into a high-speed mixer, control the temperature at 110-140 °C, control the speed at 400-600 rpm, and mix and stir for 10-20 minutes;

[0106] (2) Divide 1 to 5 parts of the modifier into five equal parts, and add them to the high-speed mixer in batches, with an interval of 3 minutes; the temperature is controlled at 100-130 °C, the speed is controlled at 600-800 rpm, and the mixing is carried out for 18-20 minutes;

[0107] (3) Add 1-10 parts of oxidative degradation accelerator and 1-2 parts of degradation controller into the high-speed mixer, control the temperature at 100-130°C, control the speed at 600-800rpm, and mix and stir for 5 minutes;

[0108] (4) Add 1-5 parts of dispersant into the high-speed mixer, control the temperature at 100-130°C, control the spe...

Embodiment 1～6

[0115] Table 1 shows the composition of the controllable oxidative biodegradable plastic masterbatch described in Examples 1 to 6 of the present invention:

[0116] The formula composition of controllable oxidative biodegradable plastic masterbatch described in Table 1 embodiment 1~6

[0117]

[0118]

[0119] The preparation method of the controllable oxidative biodegradable plastic masterbatch described in Examples 1-6 comprises the following steps:

[0120] (1) Put the formulated amount of inorganic filler powder and biodegradation accelerator into a high-speed mixer, control the temperature at 110-140°C, control the speed at 400-600rpm, and mix and stir for 10-20 minutes;

[0121] (2) Divide the modified agent in the formula into five equal parts, and add it to the high-speed mixer in batches, with an interval of 3 minutes each time; control the temperature at 100-130°C, control the speed at 600-800rpm, and mix and stir for 18-20 minutes;

[0122] (3) Add the formul...

Embodiment 7

[0129] A preparation method of controllable oxidation biodegradable plastic masterbatch comprises the following steps:

[0130] (1) Put 40 parts of 800-mesh talc powder, 30 parts of methylcellulose and 40 parts of chitosan into a high-speed mixer, control the temperature at 110-140°C, control the speed at 400-600rpm, and mix and stir for 10- 20min;

[0131] (2) Divide 5 parts of titanate coupling agent into five equal parts, and add them to the high-speed mixer in batches, with an interval of 3 minutes each time; control the temperature at 100-130 °C, control the speed at 600-800 rpm, and mix and stir for 18-20 minutes ;

[0132] (3) Add 7 parts of cobalt laurate, 3 parts of ferric chloride, 1 part of anti-aging agent IPPD and 1 part of anti-aging agent DPPD into the high-speed mixer, control the temperature at 100-130 °C, control the speed at 600-800 rpm, and mix and stir for 5 minutes;

[0133] (4) Add 4 parts of magnesium stearate and 1 part of stearic acid into the high-...

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Abstract

The invention relates to a controllable oxidative-biological degradation plastic master batch, comprising an inorganic filling material, a carrier, an oxidative degradation promoter, a biodegradation promoter and a degradation control agent, wherein the degradation control agent is an anti-oxidant. According to the plastic master batch provided by the invention, a bivariate control system of oxidative degradation and biodegradation can be optimized and linked according to an actual environment so as to allow the plastic master batch to have environment targeting performance and degradation controllability. A preparation method for the plastic master batch is simple, is easy and convenient to operate, improves mixing and dispersing capability of the plastic master batch and provides an effective solution to overcome the problems of organic-inorganic interfacial compatibility and uniform dispersibility.

Description

technical field [0001] The invention relates to a controllable oxidative biodegradable plastic masterbatch and a preparation method thereof, in particular to a controllable oxidative-biodegradable plastic masterbatch in a natural environment and a one-step "self-assembly" preparation method thereof The invention belongs to the technical field of manufacturing products containing polymer substances or molding materials. Background technique [0002] The plastics industry has developed rapidly with the improvement of the national economy and people's living standards. In 2010, the total output value of my country's plastics industry reached 1.42 trillion yuan, accounting for 10.27% of the total output value of light industry. It is the largest industry in light industry. In 2011, the total output of plastic products in my country was 54.74 million tons, a year-on-year increase of 22.45%; the total output value was 1.61 trillion yuan, a year-on-year increase of 27.45%; the prod...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L3/02C08L5/08C08L1/28C08K13/06C08K3/26C08K3/22C08K3/16C08K5/098C08K5/39C08K5/5398C08K5/053C08K3/34C08J3/22
CPCC08K2003/2241C08L23/06C08J3/226C08J2403/02C08J2423/06C08J2423/08C08K2201/014C08L3/02C08L23/0815C08L2201/06C08L2205/025C08L2205/03C08L2207/062C08L2207/066C08K13/06C08K9/04C08K2003/265C08K5/1345C08K5/13C08K5/09C08K5/098C08K3/346C08L5/08C08L1/28C08K3/34C08K3/16C08L91/06C08K9/06C08K2003/267C08K5/17
Inventor 苏发兵李晶李会芳周郁忠翟世辉
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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