CN111170672A - Environment-friendly keratin composite foaming agent and preparation method thereof - Google Patents

Environment-friendly keratin composite foaming agent and preparation method thereof Download PDF

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Publication number
CN111170672A
CN111170672A CN202010015872.0A CN202010015872A CN111170672A CN 111170672 A CN111170672 A CN 111170672A CN 202010015872 A CN202010015872 A CN 202010015872A CN 111170672 A CN111170672 A CN 111170672A
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foaming agent
keratin
feather
parts
friendly
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彭丽
胡林龙
颜子博
郭娜
熊江川
宋宇洋
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Sichuan College of Architectural Technology
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Sichuan College of Architectural Technology
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Priority to CN202010015872.0A priority Critical patent/CN111170672A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/017—Mixtures of compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/017—Mixtures of compounds
    • C09K23/018—Mixtures of two or more different organic oxygen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/42—Pore formers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Cosmetics (AREA)

Abstract

The invention belongs to the technical field of foaming agents, and particularly relates to an environment-friendly keratin composite foaming agent and a preparation method thereof. The method is characterized in that: the formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 0.5-2 parts of high-molecular foaming agent and 0.5-2 parts of foam stabilizer. The foaming agent has high surface activity, good foamability and no odor or peculiar smell, meets the requirements of the foaming agent in the aspects of foaming, foam stabilization and environmental protection, and is suitable for the foaming requirements of different materials; the production process is simple and the cost is low.

Description

Environment-friendly keratin composite foaming agent and preparation method thereof
Technical Field
The invention belongs to the technical field of foaming agents, and particularly relates to an environment-friendly keratin composite foaming agent and a preparation method thereof.
Background
The animal cement foaming agent is prepared by using selected animal (cattle and sheep) keratin as main raw material and through a series of hydrolysis reactions, heating to dissolve, diluting, filtering and high-temperature shrinking. Because the foam produced by the foaming agent has high surface strength and extremely stable foam, the bubbles of the foam cement or other foam materials produced by the foaming agent are in mutually independent closed states, and the impermeability of the foam cement product is good because the bubbles are not communicated. Under the same density, compared with the foaming cement made of plant foaming agent, the sealing property and the heat preservation property are better, the strength is high, and the method is suitable for the production of foaming bricks, light boards, light walls and foaming packaging materials.
However, the disadvantages of hoof keratin foaming agents are also evident: the product cost is high due to the rare raw materials and the complex production process; the foamer has lower foamability than plant foamer and high polymer foamer, and the consumption of manufacturing foamed cement is higher; has certain pungent smell, and can disappear after being made into foamed cement.
Disclosure of Invention
In order to solve the technical problems, the invention provides a formula and a method for preparing an environment-friendly keratin composite foaming agent, the foaming agent has high surface activity, good foamability and no odor or peculiar smell, and better meets the requirements of the foaming agent in the aspects of foaming, foam stabilization and environment protection, and is suitable for the foaming requirements of different materials; the production process is simple and the cost is low.
The invention relates to an environment-friendly keratin composite foaming agent which is characterized by comprising the following components in parts by weight: the formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 0.5-2 parts of high-molecular foaming agent and 0.5-2 parts of foam stabilizer.
In the optimization scheme, the horn feather protein hydrolysate is 100 parts, the high-molecular foaming agent is 0.8-1.6 parts, and the foam stabilizer is 0.8-1.6 parts.
In a further optimized scheme, the horn feather protein hydrolysate is 100 parts, the high-molecular foaming agent is 1.2 parts, and the foam stabilizer is 1.2 parts.
The preparation method for preparing the environment-friendly keratin composite foaming agent comprises the steps of adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer which is not higher than the liquid level.
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the weight ratio of the poultry feather to water is 100: 90-200, Ca (OH) by weight of the feather of the poultry2And NaHSO3The total amount of Ca (OH) is 2-10%2And NaHSO3The dosage ratio is 2.5-1: 1; the weight ratio of the poultry feathers to the water in the optimization scheme is 100: 90-180, and the weight ratio of the poultry feathers to the water in the further optimization scheme is 100: 100-120.
The preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1-10 mm;
(2) adding water and granules or small segments of the poultry feather into a hydrolysis tank, sealing and hydrolyzing at 40-70 deg.C for 2-10 hr while maintaining water content at 85-95% and stirring; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs.
(3) Adding Ca (OH) 2-10% of the total amount of feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Ca (OH)2With NaHSO3The addition ratio of (A) varies depending on the type of feather stem.
The poultry feather is keratin, or consists of keratin and soft silk fiber, wherein the soft silk fiber accounts for 4-6% of the mass of the keratin; in the optimized scheme, the keratin is feather stem, and the soft fiber is soft feather or down.
The soft silk fiber is matched with the source of the keratin.
The keratin is from the part of the stems left in the process of acquiring the duck down and the goose down and is harder; the soft silk fiber is feather and down, and can be added to toughen and increase foaming capacity.
In the actual production process, the keratin and the soft silk fiber can be integrated, namely, the feather stalk is added with the stalk without removing clean feather and fluff for preparation.
The molecular weight of the feather keratin hydrolysate is more than 2000, and the surface tension of a 1% aqueous solution is more than or equal to 20mN/m (20 ℃). The calibration indexes of the hydrolysis effect mainly comprise the molecular weight, nitrogen content, viscosity, surface tension and the like of the protein.
The high-molecular foaming agent is one or two of polybutadiene, polyisoprene, hydroxymethyl cellulose, polypropylene diamine and polyacrylamide for compounding.
the foam stabilizer is sodium dodecyl sulfate (K12), fatty alcohol-polyoxyethylene ether sodium sulfate (AES), α -sodium alkenyl sulfonate (AOS) or polyacrylamide.
The invention discloses an application of an environment-friendly keratin composite foaming agent, and relates to an application of the foaming agent in a light packaging material.
The invention improves the raw material source of the animal protein foaming agent, selects the feathers of poultry such as chickens, ducks, geese and the like, particularly the feather stalks as the source of the keratin foaming agent, has wide source and low price, and the feather stalks basically belong to the wastes of the breeding industry, thereby solving the technical problem that the feather products such as duck feather and duck down cannot be used as the feather products. The waste material is utilized, a new low-price keratin source is found, the cost of the foaming agent is reduced, and the market promotion effect is obvious.
The device has low energy consumption, adopts totally enclosed complete equipment to hydrolyze the keratin, can utilize electric energy, microwave energy and waste heat to heat the hydrolysate, and can realize integration through the integration of a control system.
The invention aims at the characteristics of the keratin and the characteristics of materials needing to be foamed, and adds a high-molecular foaming agent, a plant foaming agent, a foam stabilizer and flexible fibers to form the keratin foaming agent with a compound formula. The composite formulation ensures that the blowing agent is suitable for use with a wide variety of materials that require foaming to form a related product line, rather than a single product.
Detailed Description
The invention will be further illustrated with reference to specific embodiments:
example 1
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 0.5 part of high-molecular foaming agent and 0.5 part of foam stabilizer. The polymer foaming agent is polybutadiene, and the foam stabilizer is sodium dodecyl sulfate (K12).
Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the ratio of the poultry feather to water is 100: 120, Ca (OH) by weight of bird feather2And NaHSO32% of the total amount of Ca (OH)2And NaHSO3The dosage proportion is 2: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 40 ℃ for 10h, keeping the water content at 85% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs.
(3) Adding Ca (OH) 2% of the total amount of feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The poultry feather is keratin, or consists of keratin and soft silk fiber, wherein the soft silk fiber accounts for 5 percent of the mass of the keratin; the keratin is stem of duck hair, duck hair and duck down used for soft silk fiber.
The soft silk fiber is matched with the source of the keratin. The keratin is from the part of the stems left in the process of acquiring the duck down and the goose down and is harder; the soft silk fiber is feather and down, and can be added to toughen and increase foaming capacity. In the actual production process, the keratin and the soft silk fiber can be integrated, namely, the feather stalk is added with the stalk without removing clean feather and fluff for preparation.
The hydrolysis tank is a sealing device, the temperature can be adjusted to 30-90 ℃, and the tank body is provided with a stirring and dosing device and a bottom liquid discharging device. Wherein Ca (OH)2With NaHSO3The addition ratio of (A) varies depending on the type of feather stem.
The indexes calibrated by the hydrolysis effect mainly comprise the molecular weight, nitrogen content, viscosity, surface tension and the like of the protein. The molecular weight of the keratin protein hydrolysate is more than 2000, and the surface tension of a 1% aqueous solution with the mass fraction can be as low as 20mN/m (20 ℃).
Example 2
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 2 parts of a high-molecular foaming agent and 2 parts of a foam stabilizer.
The polymer foaming agent is polyisoprene and hydroxymethyl cellulose, and the foam stabilizer is fatty alcohol polyoxyethylene ether sodium sulfate (AES). The soft silk fiber is hydrolysate of various feathers and is matched with the source of the keratin.
Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the weight ratio of the poultry feather to water is 100: 200, Ca (OH) by weight of bird feather2And NaHSO32% of the total amount of Ca (OH)2And NaHSO3The dosage proportion is 1: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 10 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 70 ℃ for 10h, keeping the water content at 95% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs. A part of water can be added firstly, and then the water content is maintained.
(3) Adding Ca (OH) 2% of the total amount of feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The poultry feather is keratin or consists of keratin and soft fiber, the keratin is chicken feather stalk, the soft fiber is soft chicken feather, and the weight of the soft fiber attachment is about 5% of the stalk weight calculated by the mass of the keratin.
Example 3
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 1 part of high-molecular foaming agent and 1 part of foam stabilizer. The feather is goose feather stem.
the high-molecular foaming agent is polypropylene diamine and polyacrylamide, the foam stabilizer is α -sodium alkenyl sulfonate (AOS), and the soft silk fiber is hydrolysate of various feathers and is matched with the source of the keratin.
Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the weight ratio of the poultry feather to water is 100: 180, Ca (OH) based on the weight of the feathers of the bird2And NaHSO32% of the total amount of Ca (OH)2And NaHSO3The dosage ratio is 2.5: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 10 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 60 ℃ for 10h, keeping the water content at 90% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs. A part of water can be added firstly, and then the water content is maintained.
(3) Adding Ca (OH) 2% of the total amount of feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The poultry feather is keratin, or consists of keratin and soft silk fiber, wherein the soft silk fiber accounts for 4 percent of the mass of the keratin; the keratin is chicken feather stalk, and the soft silk fiber is soft chicken feather.
Example 4
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 0.8 part of high-molecular foaming agent and 0.8 part of foam stabilizer. Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The high-molecular foaming agent is polyacrylamide, and the foam stabilizer is polyacrylamide.
The soft silk fiber is hydrolysate of various feathers and is matched with the source of the keratin.
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the ratio of the poultry feather to water is 100: 120, Ca (OH) by weight of bird feather2And NaHSO32% of the total amount of Ca (OH)2And NaHSO3The dosage proportion is 2: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 50 ℃ for 9h, keeping the water content at 85% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs.
(3) Adding Ca (OH) 2% of the total amount of feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The poultry feather is keratin, or consists of keratin and soft silk fiber, wherein the soft silk fiber accounts for 6 percent of the mass of the keratin; the keratin is stem of duck hair, duck hair and duck down used for soft silk fiber.
The indexes calibrated by the hydrolysis effect mainly comprise the molecular weight, nitrogen content, viscosity, surface tension and the like of the protein. The molecular weight of the keratin protein hydrolysate is more than 2000, and the lowest surface tension of the aqueous solution with the mass fraction of 1 percent can reach 20mN/m (20 ℃).
Example 5
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 1.6 parts of a high-molecular foaming agent and 1.6 parts of a foam stabilizer. Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The polymer foaming agent is polybutadiene and hydroxymethyl cellulose, and the foam stabilizer is fatty alcohol polyoxyethylene ether sodium sulfate (AES).
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the ratio of the poultry feather to water is 100: 90, based on the weight of the feathers of the bird, Ca (OH)2And NaHSO3The total amount is 4%, the Ca (OH)2And NaHSO3The dosage proportion is 2: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 40 ℃ for 2h, keeping the water content at 88% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs.
(3) Adding Ca (OH) in an amount of 4% by weight based on the weight of feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The poultry feather is keratin, or consists of keratin and soft silk fiber, wherein the soft silk fiber accounts for 5 percent of the mass of the keratin; the keratin is stem of duck hair, duck hair and duck down used for soft silk fiber.
Example 6
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 1.2 parts of a high-molecular foaming agent and 1.4 parts of a foam stabilizer. Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The polymer foaming agent is polypropylene diamine, and the foam stabilizer is sodium dodecyl sulfate (K12).
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the ratio of the poultry feather to water is 100: 110, Ca (OH) by weight of bird feather2And NaHSO3The total amount is 8%, the Ca (OH)2And NaHSO3The dosage ratio is 1.5: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 50 ℃ for 4h, keeping the water content at 92% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs.
(3) Adding Ca (OH) in an amount of 8% by weight of the feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The feather of the poultry is keratin, and the keratin is the stalk of duck hair.
Example 7
The formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 1.5 parts of a high-molecular foaming agent and 0.9 part of a foam stabilizer. Adding the high-molecular foaming agent and the foam stabilizer into the keratin hydrolysate, and uniformly mixing by using a low-speed stirrer not higher than the liquid level.
The high-molecular foaming agent is polyacrylamide, and the foam stabilizer is fatty alcohol polyoxyethylene ether sodium sulfate (AES).
The keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the ratio of the poultry feather to water is 100: 100, Ca (OH) by weight of bird feather2And NaHSO3Total amount of 6%, Ca (OH)2And NaHSO3The dosage proportion is 2: 1.
the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1 mm;
(2) adding the granules or the small segments and water into a hydrolysis tank, sealing and hydrolyzing at 40 ℃ for 7h, keeping the water content at 90% all the time in the hydrolysis process, and stirring while hydrolyzing; heat can be provided by microwaves, electricity and waste heat through different heat exchanger designs.
(3) Ca (OH) was added in an amount of 6% by weight based on the weight of the feather stem2And NaHSO3And hydrolyzing and uniformly mixing by a low-speed stirrer not higher than the liquid level. Adding Ca (OH) while hydrolyzing or first adding2And NaHSO3And then hydrolyzing.
The feather of the poultry is keratin, and the keratin is chicken feather stalk.
The composite foaming agent can be applied to the foaming process of the light packaging material, waste paper pulp, softened straw powder and paraffin are used as forming agents, the product is used as the foaming agent, and the foaming effect is judged by measuring the volume of the foamed material.
While the foregoing shows and describes the fundamental principles and principal features of the invention, together with the advantages thereof, the foregoing embodiments and description are illustrative only of the principles of the invention, and various changes and modifications can be made therein without departing from the spirit and scope of the invention, which will fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. An environment-friendly keratin composite foaming agent is characterized in that: the formula of the foaming agent comprises the following components in parts by weight: 100 parts of horn feather protein hydrolysate, 0.5-2 parts of high-molecular foaming agent and 0.5-2 parts of foam stabilizer.
2. The environment-friendly keratin composite foaming agent as claimed in claim 1, wherein: 100 parts of the horn feather protein hydrolysate, 0.8-1.6 parts of a high-molecular foaming agent and 0.8-1.6 parts of a foam stabilizer.
3. The environment-friendly keratin composite foaming agent as claimed in claim 1, wherein: 100 parts of the horn feather protein hydrolysate, 1.2 parts of a high-molecular foaming agent and 1.2 parts of a foam stabilizer.
4. An environment-friendly keratin composite foaming agent according to any one of claims 1 to 3, wherein: the keratin hydrolysate is prepared from bird feather, water, Ca (OH)2And NaHSO3Mixing and hydrolyzing, wherein the weight ratio of the poultry feather to water is 100: 90-200, Ca (OH) by weight of the feather of the poultry2And NaHSO3The total amount of Ca (OH) is 2-10%2And NaHSO3The dosage ratio is 2.5-1: 1; the weight ratio of the poultry feathers to the water in the optimization scheme is 100: 90-180, and the weight ratio of the poultry feathers to the water in the further optimization scheme is 100: 100-120.
5. The process for preparing an environmentally friendly keratin composite foaming agent according to claim 4, wherein: the preparation method of the keratin hydrolysate comprises the following steps:
(1) shearing the poultry feather into particles or small sections with the length of 1-10 mm;
(2) adding water and granules or small segments of the poultry feather into a hydrolysis tank, sealing and hydrolyzing at 40-70 deg.C for 2-10 hr while stirring;
(3) adding Ca (OH)2And NaHSO3Mixing, hydrolyzing and stirring.
6. The environment-friendly keratin composite foaming agent as claimed in claim 4 or 5, wherein: the poultry feather is keratin, or the poultry feather is composed of keratin and soft silk fiber, wherein the soft silk fiber accounts for 4-6% of the mass of the keratin; in the optimized scheme, the keratin is feather stem, and the soft fiber is soft feather or down.
7. The process for preparing an environmentally friendly keratin composite foaming agent according to claim 1, wherein: the molecular weight of the feather keratin hydrolysate is more than 2000, and the surface tension of a 1% aqueous solution is more than or equal to 20mN/m (20 ℃).
8. The environment-friendly keratin composite foaming agent as claimed in claim 1, wherein: the high-molecular foaming agent is one or two of polybutadiene, polyisoprene, hydroxymethyl cellulose, polypropylene diamine and polyacrylamide for compounding.
9. the environment-friendly keratin composite foaming agent as claimed in claim 1, wherein the foam stabilizer is sodium lauryl sulfate (K12), sodium fatty alcohol polyoxyethylene ether sulfate (AES), sodium alpha-alkenyl sulfonate (AOS) or polyacrylamide.
10. The use of the environment-friendly keratin composite foaming agent as claimed in claim 1, wherein: use of the blowing agent in a light weight packaging material.
CN202010015872.0A 2020-01-08 2020-01-08 Environment-friendly keratin composite foaming agent and preparation method thereof Pending CN111170672A (en)

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CN104177118A (en) * 2014-08-04 2014-12-03 中建商品混凝土（福建）有限公司 Early-strength composite foam concrete foaming agent and preparation method thereof
CN105481283A (en) * 2014-10-11 2016-04-13 王路明 Composite protein foaming agent for foamed concrete, preparation method for composite protein foaming agent and use of composite protein foaming agent
CN105000904A (en) * 2015-08-07 2015-10-28 河南华泰建材开发有限公司 Lightweight foamed soil used for filling prefabricated lining bulk materials used for high-speed rail
CN109400205A (en) * 2017-08-16 2019-03-01 中国石油化工股份有限公司 A kind of cement slurry and its application, foamed cement system and its preparation
CN107902942A (en) * 2017-10-13 2018-04-13 广东盛瑞科技股份有限公司 A kind of animal protein foaming agent of high-foaming multiple and preparation method thereof
CN109400039A (en) * 2018-12-10 2019-03-01 中国五冶集团有限公司 A kind of foam concrete road and bridge filling material
CN109467333A (en) * 2018-12-10 2019-03-15 中国五冶集团有限公司 A kind of light-weight foamed concrete foaming agent

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