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Biodegradable filling type foam and production process thereof

A biodegradable and filling technology, applied in the field of foam, can solve the problems of weak compressive strength and resilience, different mechanical properties, poor weather resistance, etc., and achieve the effects of convenient operation, easy implementation, good flexibility, resilience and weather resistance.

Pending Publication Date: 2020-07-17
中山市淀堂环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing starch foam granule products have weak compressive strength and resilience, are easily broken, and have poor practicability; and starch products have strong water absorption and poor weather resistance, and show great differences in mechanical properties under different humidity environments, which limits it applies

Method used

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  • Biodegradable filling type foam and production process thereof
  • Biodegradable filling type foam and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A biodegradable filling foam, comprising the following raw materials in parts by weight:

[0044] Superfine vegetable starch 50 parts

[0045] 5 parts of hydroxyl-containing active polymer compound

[0046] Ammonium salt or amines and polyamines 0.1 parts

[0047] Foaming agent 0.1 parts

[0048] Acidity regulator 0.1 parts

[0049] Peroxide 0.05 parts

[0050] 0.1 parts of stearic acid and stearic acid esters

[0051] 1 part of other functional additives.

[0052] The hydroxyl-containing active polymer compound is modified cellulose.

[0053] The ammonium salt is ammonium chloride; the amine is methylamine; and the polyamine is ethylenediamine.

[0054] The foaming agent is calcium carbonate.

[0055] The acidity regulator is oxalic acid.

[0056] The peroxide is hydrogen peroxide.

[0057] Described stearic acid and the esterification product of stearic acid are stearic acid.

[0058]The other functional additives are plasticizers and nucleating agents.

...

Embodiment 2

[0066] A biodegradable filling foam, comprising the following raw materials in parts by weight:

[0067] Superfine vegetable starch 70 parts

[0068] 10 parts of polymer compound containing hydroxyl activity

[0069] Ammonium salt or amines and polyamines 1 part

[0070] Foaming agent 1 part

[0071] 1 part acidity regulator

[0072] Peroxide 0.1 parts

[0073] Stearic acid and stearic acid esters 2 parts

[0074] 2 parts of other functional additives.

[0075] The active polymer compound containing hydroxyl is polyvinyl alcohol.

[0076] The ammonium salt is ammonium nitrate; the amines are monoethanolamine; and the polyamines are propylenediamine.

[0077] The blowing agent is magnesium carbonate.

[0078] The acidity regulator is malic acid.

[0079] The peroxide is peracetic acid.

[0080] Described stearic acid and the esterification product of stearic acid are glycerol monostearate.

[0081] The other functional additives are plasticizers and nucleating agents...

Embodiment 3

[0089] A biodegradable filling foam, comprising the following raw materials in parts by weight:

[0090] Superfine vegetable starch 75 parts

[0091] 15 parts of polymer compound containing hydroxyl activity

[0092] Ammonium salt or amines and polyamines 2.5 parts

[0093] Foaming agent 2.5 parts

[0094] Acidity regulator 2.5 parts

[0095] Peroxide 0.25 parts

[0096] Stearic acid and stearic acid esters 5 parts

[0097] 5 parts of other functional additives.

[0098] The active polymer compound containing hydroxyl group is ethylene-vinyl alcohol copolymer.

[0099] The ammonium salt is ammonium sulfate; the amines are diethanolamine; and the polyamines are diethylenetriamine.

[0100] Described whipping agent is sodium bicarbonate.

[0101] The acidity regulator is tartaric acid.

[0102] The peroxide is benzoyl peroxide or lauroyl peroxide.

[0103] The stearic acid and the esterified product of stearic acid are glyceryl distearate.

[0104] The other functiona...

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Abstract

The invention relates to the technical field of foam. The invention relates biodegradable filling type foam and a production process thereof. The biodegradable filling type foam comprises the following raw materials in parts by weight: 50 to 95 parts of ultrafine plant starch, 5 to 30 parts of a hydroxyl-containing active high-molecular compound, 0.1 to 5 parts of ammonium salt or amine and polyamine substance, 0.1 to 5 parts of a foaming agent, 0.1 to 5 parts of an acidity regulator, 0.05 to 0.5 part of a peroxide, 0.1 to 10 parts of stearic acid and ester of stearic acid, and 0 to 10 parts of other functional additives. According to the biodegradable filling type foam, the raw materials are adopted, the weight ratio of the raw materials is strictly controlled, and the prepared biodegradable filling type foam particles are smooth and fine in appearance, fine and uniform in internal foam pore structure and good in pressure resistance, resilience, weather resistance and cold resistance.

Description

technical field [0001] The invention relates to the field of foam technology, in particular to a biodegradable filling foam and a production process thereof. Background technique [0002] Today, polyolefin foams are widely used in many fields. These polyolefin foam plastic wastes cannot be decomposed in the natural environment, forming serious white pollution. Foam plastic is an indispensable multi-purpose material in modern human production and life. The development and development of biodegradable foam plastics to protect the ecological environment has become a hot topic in the world. In recent years, as people pay more and more attention to resource and environmental issues, renewable resources are used to produce fully biodegradable cushioning packaging products, which can be decomposed into water and carbon dioxide by microorganisms in a natural state after use. Among the researched objects, starch is It has a wide range of sources and low price, so it has become a w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L1/02C08L29/04C08L23/08C08L71/02C08L87/00C08K13/02C08K3/28C08K5/17C08K5/09C08K5/14C08K5/103C08K3/30C08K3/18C08J9/08
CPCC08J9/08C08J9/0095C08J9/0066C08J9/0061C08J9/0023C08J9/0028C08K2003/3054C08K2003/285C08J2303/02C08J2401/02C08J2429/04C08J2423/08C08J2471/02C08J2487/00C08K13/02C08K3/28C08K5/17C08K5/09C08K5/14C08K5/103C08K3/30C08K3/18C08J2203/02
Inventor 王明慧
Owner 中山市淀堂环保科技有限公司
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