Full-biodegradable toughening injection molding master batch and processing technology thereof

Abstract

The invention relates to the field of injection molding master batches, in particular to a full-biodegradable toughening injection molding master batch and a processing technology. The invention discloses the full-biodegradable toughening injection molding master batch which is prepared from the following raw materials in parts by weight: 100 parts of modified polylactic acid, 3-15 parts of palygorskite modifier, 1-10 parts of cicada shell, 5-10 parts of polybutylene succinate and 1-3 parts of talcum powder. The problems that the existing polylactic acid injection molding master batch is hard,poor in toughness, lack of flexibility and elasticity, extremely prone to bending deformation and incapable of meeting production requirements are solved. The processing technology is simple and controllable in process and low in cost, the environment cannot be polluted no matter from raw materials, the processing technology or the finally obtained product, safety and environmental protection aretruly achieved, and the processing technology very conforms to the sustainable development concept.

Description

technical field

[0001] The invention relates to the field of injection molding masterbatches, in particular to a fully biodegradable and toughened injection molding masterbatch and a processing technology. Background technique

[0002] Plastics and their products are widely used in various industries. In order to improve the performance of plastics, it is necessary to add various masterbatches to plastics. Therefore, functional toughening masterbatches for injection molding enhancement and modification are an important chemical additive. .

[0003] Under the background that our country is gradually promoting green environmental protection, polylactic acid is widely used because it is a biodegradable material. Low strength, brittleness, poor permeability, poor heat resistance, etc., have high tensile strength and compression modulus, but hard and poor toughness, lack of flexibility and elasticity, easy to bend and deform, can no longer meet production needs . Contents of ...

Examples

Embodiment 1

[0037] A fully biodegradable and toughened injection masterbatch, made from the following raw materials in parts by weight:

[0038] 100 parts of modified polylactic acid, 10 parts of modified palygorskite, 6 parts of cicada shell, 8 parts of polybutylene succinate, and 2 parts of talcum powder.

[0039] The modified polylactic acid is obtained by modifying polylactic acid with butyl acrylate, trimethylolpropane triacrylate, and tert-butyl peroxybenzoate;

[0040] The modified palygorskite is obtained by purifying and modifying palygorskite.

[0041] The steps of palygorskite purification are as follows: Weigh the palygorskite powder with a particle size of 50-100 μm, add it to an ethanol solution with a mass concentration of 50-60%, ultrasonicate for 1-2 hours, filter the solid matter, and dry , to obtain palygorskite purified product;

[0042] Among them, the solid-to-liquid ratio of palygorskite powder to ethanol solution is 1:30-50.

[0043] The modified steps of palygo...

Embodiment 2

[0062] A fully biodegradable and toughened injection masterbatch, made from the following raw materials in parts by weight:

[0063] 100 parts of modified polylactic acid, 3 parts of modified palygorskite, 1 part of cicada shell, 5 parts of polybutylene succinate, 1 part of talcum powder;

[0064] The modified polylactic acid is obtained by modifying polylactic acid with butyl acrylate, trimethylolpropane triacrylate, and tert-butyl peroxybenzoate;

[0065] The modified palygorskite is obtained by purifying and modifying palygorskite.

[0066] The steps of palygorskite purification are as follows: Weigh the palygorskite powder with a particle size of 50-100 μm, add it to an ethanol solution with a mass concentration of 50-60%, ultrasonicate for 1-2 hours, filter the solid matter, and dry , to obtain palygorskite purified product;

[0067] Among them, the solid-to-liquid ratio of palygorskite powder to ethanol solution is 1:30-50.

[0068] The modified steps of palygorskite ...

Embodiment 3

[0087] A fully biodegradable and toughened injection masterbatch, made from the following raw materials in parts by weight:

[0088] 100 parts of modified polylactic acid, 15 parts of modified palygorskite, 10 parts of cicada shell, 10 parts of polybutylene succinate, 3 parts of talcum powder;

[0089] The modified polylactic acid is obtained by modifying polylactic acid with butyl acrylate, trimethylolpropane triacrylate, and tert-butyl peroxybenzoate;

[0090] The modified palygorskite is obtained by purifying and modifying palygorskite.

[0091] The steps of palygorskite purification are as follows: Weigh the palygorskite powder with a particle size of 50-100 μm, add it to an ethanol solution with a mass concentration of 50-60%, ultrasonicate for 1-2 hours, filter the solid matter, and dry , to obtain palygorskite purified product;

[0092] Among them, the solid-to-liquid ratio of palygorskite powder to ethanol solution is 1:30-50.

[0093] The modified steps of palygors...

technical field

[0001] The invention relates to the field of injection molding masterbatches, in particular to a fully biodegradable and toughened injection molding masterbatch and a processing technology. Background technique

[0002] Plastics and their products are widely used in various industries. In order to improve the performance of plastics, it is necessary to add various masterbatches to plastics. Therefore, functional toughening masterbatches for injection molding enhancement and modification are an important chemical additive. .

[0003] Under the background that our country is gradually promoting green environmental protection, polylactic acid is widely used because it is a biodegradable material. Low strength, brittleness, poor permeability, poor heat resistance, etc., have high tensile strength and compression modulus, but hard and poor toughness, lack of flexibility and elasticity, easy to bend and deform, can no longer meet production needs . Contents of ...

Examples

Embodiment 1

[0037] A fully biodegradable and toughened injection masterbatch, made from the following raw materials in parts by weight:

[0038] 100 parts of modified polylactic acid, 10 parts of modified palygorskite, 6 parts of cicada shell, 8 parts of polybutylene succinate, and 2 parts of talcum powder.

[0039] The modified polylactic acid is obtained by modifying polylactic acid with butyl acrylate, trimethylolpropane triacrylate, and tert-butyl peroxybenzoate;

[0040] The modified palygorskite is obtained by purifying and modifying palygorskite.

[0041] The steps of palygorskite purification are as follows: Weigh the palygorskite powder with a particle size of 50-100 μm, add it to an ethanol solution with a mass concentration of 50-60%, ultrasonicate for 1-2 hours, filter the solid matter, and dry , to obtain palygorskite purified product;

[0042] Among them, the solid-to-liquid ratio of palygorskite powder to ethanol solution is 1:30-50.

[0043] The modified steps of palygo...

Embodiment 2

[0062] A fully biodegradable and toughened injection masterbatch, made from the following raw materials in parts by weight:

[0063] 100 parts of modified polylactic acid, 3 parts of modified palygorskite, 1 part of cicada shell, 5 parts of polybutylene succinate, 1 part of talcum powder;

[0064] The modified polylactic acid is obtained by modifying polylactic acid with butyl acrylate, trimethylolpropane triacrylate, and tert-butyl peroxybenzoate;

[0065] The modified palygorskite is obtained by purifying and modifying palygorskite.

[0066] The steps of palygorskite purification are as follows: Weigh the palygorskite powder with a particle size of 50-100 μm, add it to an ethanol solution with a mass concentration of 50-60%, ultrasonicate for 1-2 hours, filter the solid matter, and dry , to obtain palygorskite purified product;

[0067] Among them, the solid-to-liquid ratio of palygorskite powder to ethanol solution is 1:30-50.

[0068] The modified steps of palygorskite ...

Embodiment 3

[0087] A fully biodegradable and toughened injection masterbatch, made from the following raw materials in parts by weight:

[0088] 100 parts of modified polylactic acid, 15 parts of modified palygorskite, 10 parts of cicada shell, 10 parts of polybutylene succinate, 3 parts of talcum powder;

[0089] The modified polylactic acid is obtained by modifying polylactic acid with butyl acrylate, trimethylolpropane triacrylate, and tert-butyl peroxybenzoate;

[0090] The modified palygorskite is obtained by purifying and modifying palygorskite.

[0091] The steps of palygorskite purification are as follows: Weigh the palygorskite powder with a particle size of 50-100 μm, add it to an ethanol solution with a mass concentration of 50-60%, ultrasonicate for 1-2 hours, filter the solid matter, and dry , to obtain palygorskite purified product;

[0092] Among them, the solid-to-liquid ratio of palygorskite powder to ethanol solution is 1:30-50.

[0093] The modified steps of palygors...

Images