Raw material composition and master batch of biodegradable material and preparation method and application thereof

A technology of biodegradable material and raw material composition, which is applied to the raw material composition of biodegradable material, master batch and the fields of preparation and application thereof, can solve the problems of non-renewable production cost of raw materials, non-degradable plastics, etc.

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

[0004] The technical problem to be solved by the present invention is to provide a raw material composition, masterbatch and its preparation method and application of biodegradable materials in order to overcome the defects of non-degradable plastics, non-renewable raw materials and high production costs in the prior art.

Method used

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  • Raw material composition and master batch of biodegradable material and preparation method and application thereof
  • Raw material composition and master batch of biodegradable material and preparation method and application thereof
  • Raw material composition and master batch of biodegradable material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0070] (1) Preparation method of modified papermaking waste:

[0071] In this embodiment, the papermaking black liquor is the papermaking black liquor produced during the pulping process by the caustic soda method. The caustic soda method specifically involves cooking poplar wood with a caustic soda solution. The cooking temperature is 160-180° C. and the cooking time is 3 hours.

[0072] Add sulfuric acid to a certain amount of papermaking black liquor prepared by the above-mentioned caustic soda method to adjust the pH of the system to 3, then dry and sieve to obtain papermaking waste, papermaking waste, stearic acid and cyclodextrin in banburying Mix in the machine to obtain modified papermaking waste; among them, the particle size of the material after screening is 200 mesh; the mass ratio of papermaking waste to stearic acid is 100:5, and the mass ratio of papermaking waste to cyclodextrin The ratio is 100:0.5; the mixing temperature in the internal mixer is 160°C, the mi...

Embodiment 2

[0081] (1) Preparation method of modified papermaking waste:

[0082] In this example, the papermaking black liquor is the papermaking black liquor produced during the pulping process using the kraft method. The kraft method specifically uses kraft pulp to cook poplar wood. The cooking temperature is 160-180° C., and the cooking time is 3h.

[0083] Add sulfuric acid to a certain amount of paper-making black liquor obtained by the above-mentioned sulfate method to adjust the pH of the system to 3, then dry and sieve to obtain paper-making waste, paper-making waste, stearyl chloride and pyridine in a banbury mixer The modified papermaking waste was obtained by internal mixing; wherein, the particle size of the material after screening treatment was 200 mesh; the mass ratio of papermaking waste to stearyl chloride was 100:10, and the mass ratio of papermaking waste to pyridine was 100 : 1; the mixing temperature in the internal mixer is 160°C, the mixing time is 120min, and the...

Embodiment 3

[0092] (1) Preparation method of modified papermaking waste:

[0093] In this example, the papermaking black liquor is the papermaking black liquor produced during the pulping process using the sulfite method, and the sulfite method is specifically to use the sulfite cooking liquor to cook poplar, and the cooking temperature is 160-180°C , The cooking time is 4h.

[0094] Add sulfuric acid to a certain amount of papermaking black liquor obtained by the above-mentioned sulfite method to adjust the pH of the system to 3, then dry and sieve to obtain papermaking waste, which is mixed with stearic acid and cyclodextrin The modified papermaking waste was mixed in an internal mixer; the particle size of the material after screening was 200 mesh; the mass ratio of papermaking waste to stearic acid was 100:20, and the papermaking waste and cyclodextrin The mass ratio is 100:2; the mixing temperature in the internal mixer is 160°C, the mixing time is 120min, and the rotation speed is ...

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Abstract

The invention discloses a raw material composition and master batch of a biodegradable material and a preparation method and application thereof. The raw material composition of the biodegradable material comprises the following components in parts by weight: 20-80 parts of polylactic acid, 1-40 parts of poly(butylene adipate-co-terephthalate), 1-40 parts of modified papermaking waste and 1-20 parts of an auxiliary agent, and 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 trichloroacetylchloride. The biodegradable master batch and the material are easy to degrade in nature, the raw materials are renewable, and the cost is low. The prepared biodegradable material has good bending strength, flexural modulus and notch-free impact strength.

Description

technical field [0001] The invention specifically relates to a raw material composition of a biodegradable material, a masterbatch, a preparation method and application thereof. Background technique [0002] Due to its unique advantages, such as easy processing and molding, good stability, light weight, high strength and low cost, plastics are more and more widely used in household items, auto parts, billboards and construction panels. However, with the increasing demand for plastics in society, more and more problems have been exposed. First of all, traditional PE and PP polyolefin materials are synthesized by non-renewable fossil energy, and these non-renewable resources are decreasing as the demand for plastics increases; secondly, after traditional plastics are used, they are generally filled with Buried or incinerated, resulting in "white pollution", the environmental hazards are becoming more and more serious. Therefore, it is particularly important to develop and us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08L97/00C08K13/02C08K3/26C08K5/14C08L5/16C08K5/09C08K3/36C08K3/34
CPCC08K2003/265C08L67/04C08L2201/06C08L2205/035C08L67/02C08L97/005C08L5/16C08K13/02C08K3/26C08K5/14C08K5/09C08K3/36C08K3/34
Inventor 施晓旦翟艳荣赵吉
Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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