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Biodegradable master batch, profile, raw material and preparation method of biodegradable master batch

A technology of biodegradation and masterbatch, applied in the field of raw materials and their preparation, biodegradable masterbatch, profiles, can solve the problems of secondary pollution of the environment, not easy to be degraded, papermaking waste is not efficiently utilized, etc., to achieve improved compatibility Sexuality and cost reduction effect

Inactive Publication Date: 2020-06-05
SHANGHAI CHANGFA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem that the base material of plastics in the prior art is mainly derived from non-biodegradable plastic plates such as PP or PVC, which are not easy to be degraded, cause secondary pollution to the environment and papermaking wastes are not efficiently produced. Provide a biodegradable masterbatch, profile, raw material and preparation method thereof by taking advantage of such defects

Method used

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  • Biodegradable master batch, profile, raw material and preparation method of biodegradable master batch
  • Biodegradable master batch, profile, raw material and preparation method of biodegradable master batch
  • Biodegradable master batch, profile, raw material and preparation method of biodegradable master batch

Examples

Experimental program
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Effect test

Embodiment 1

[0062] (1) Preparation of modified papermaking waste

[0063] Add sulfuric acid to a certain amount of papermaking black liquor prepared by the conventional caustic soda method to adjust the pH of the system to 3, then dry and sieve to obtain papermaking waste, and the particle size of the material after sieving is 300-1000 mesh . Papermaking waste is mixed with stearyl chloride and pyridine in a high-mixer to obtain modified papermaking waste; the mass ratio of papermaking waste to stearyl chloride is 100:5, and the mass ratio of papermaking waste to pyridine is 100 : 1; the mixing reaction temperature in the high mixer is 120°C, the mixing reaction time is 120min, and the rotating speed is 300rpm.

[0064] (2) Preparation of biodegradable masterbatch

[0065] The raw material composition for the preparation of biodegradable masterbatches is added to a high-speed mixer and mixed, and the mixed material is extruded and pelletized in a twin-screw extruder. The temperatures of...

Embodiment 2

[0071] (1) Preparation of modified papermaking waste

[0072] Add sulfuric acid to a certain amount of papermaking black liquor produced by the conventional sulfate method to adjust the pH of the system to 3, then dry and sieve to obtain papermaking waste. The particle size of the material after sieving is 300-1000 head. Papermaking waste is mixed with stearyl chloride and pyridine in a high-mixer to obtain modified papermaking waste; the mass ratio of papermaking waste to stearyl chloride is 100:10, and the mass ratio of papermaking waste to pyridine is 100 : 2; the mixing reaction temperature in the high mixer is 150°C, the mixing reaction time is 180min, and the rotating speed is 500rpm.

[0073] (2) Preparation of biodegradable masterbatch

[0074] The raw material composition for the preparation of biodegradable masterbatches is added to a high-speed mixer and mixed, and the mixed material is extruded and pelletized in a twin-screw extruder. The temperatures of the firs...

Embodiment 3

[0080] (1) Preparation of modified papermaking waste

[0081] Add sulfuric acid to a certain amount of papermaking black liquor prepared by the conventional sulfite method to adjust the pH of the system to 3, then dry and sieve to obtain papermaking waste, and the particle size of the material after sieving is 500~ 800 mesh. Papermaking waste is mixed with stearyl chloride and pyridine in a high-mixer to obtain modified papermaking waste; the mass ratio of papermaking waste to stearyl chloride is 100:20, and the mass ratio of papermaking waste to pyridine is 100 : 3; the mixing reaction temperature in the high mixer is 150°C, the mixing reaction time is 180min, and the rotating speed is 500rpm.

[0082] (2) Preparation of biodegradable masterbatch

[0083] The raw material composition for the preparation of biodegradable masterbatches is added to a high-speed mixer and mixed, and the mixed material is extruded and pelletized in a twin-screw extruder. The temperatures of the ...

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Abstract

The invention discloses a biodegradable master batch, a profile, a raw material and a preparation method of the biodegradable master batch. The raw material composition of the modified papermaking waste comprises the following components in parts by weight: 100 parts of papermaking waste, 1-50 parts of a modifier and 0.1-5 parts of a phase transfer agent, wherein the modifier is one or more of stearoyl chloride, acetyl chloride, benzoyl chloride, oxalyl chloride, chloroacetyl chloride and trichloroacetyl chloride. The modified papermaking waste is adopted, the compatibility of the modified papermaking waste and biodegradable resin can be effectively improved, and then the tensile strength and elongation at break of the biodegradable profile are improved, and the prepared biodegradable master batch and biodegradable profile can be completely degraded by microorganisms in the nature, so that waste utilization is realized and the cost is reduced.

Description

technical field [0001] The invention specifically relates to a biodegradable masterbatch, a profile, a raw material and a preparation method thereof. Background technique [0002] Due to its unique advantages, such as easy processing, good stability, light weight, high strength and low cost, plastics are used in various fields. Most of the substrates used in existing plastics are derived from PP or PVC in the petrochemical industry. These plastic products are not easy to degrade and will seriously pollute the environment. In recent years, the late development of biodegradable materials, the slow progress of industrialization, and the high cost of their synthesis and processing have limited their industrial application. [0003] The pulp and paper industry separates about 140 million tons of cellulose from plants every year, and produces a large amount of papermaking waste, but so far, more than 95% of the papermaking waste is still directly discharged into rivers or concent...

Claims

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Application Information

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IPC IPC(8): C08B3/10C08L67/02C08L67/04C08L1/10C08L3/02C08K5/14C08K5/11C08K5/098C08J3/22
CPCC08B3/10C08J3/226C08J2401/10C08J2467/02C08J2467/04C08K5/098C08K5/11C08K5/14
Inventor 施晓旦郝鲁峰郑璐
Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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