摘要:
The present invention concerns a method for manufacturing a starch-based plasticized composition comprising starch and a plasticizer said plasticizer comprising 1,3-propanediol (PDO). The invention also concerns a plasticized material comprising the plasticized starch composition of the invention and a polymer.
摘要:
The presented invention related to the composition for preparing surgical hemostatic film rice starch - based that comprised the aqueous solutions of gelatinised rice starch, polyvinyl alcohol, carboxymethyl cellulose, and glycerol without gelatin, calcium chloride, and acetic acid. Furthermore, the invention related to the process for preparing surgical hemostatic film rice starch - based by it composition, and related to the surgical hemostatic film rice starch - based by it composition, and/or the surgical hemostatic film rice starch - based that prepared by this process.
摘要:
The present relates to a process for incorporating of wet natural fiber and starch into thermoplastics and the composite produced. The process for producing the composite comprises steps of: providing a wet natural fiber; providing a starch; providing a plasticizer; providing a thermoplastic; mixing the wet natural fiber, the starch and the plasticizer with water to produce a paste, and compounding the paste with the thermoplastic to produce the composite. The composite in a preferred embodiment comprises 50 weight % natural fiber/starch and a plasticizer; 50 weight % thermoplastic; a tensile modulus greater than 1450 MPa and a tensile strength greater than 41 MPa.
摘要:
The present invention relates to a process for producing foam mouldings, comprising a) providing a first amount of expandable foam particles; b) providing a second amount of expandable foam particles; c) preparing a physical mixture on basis of said first and second amount of foam particles; d) introduction of the mixture of step c) into a mould and sintering under pressure and heat, wherein the chemical origin of the first amount of expandable foam particles differs from the chemical origin of the second amount of foam particles, the process further comprising the presence of a coating in the mixture before the introduction of the mixture into the mould.
摘要:
A composite material is formed by combining an expandable polymer having a charge with another polymer having an opposite charge to produce. In particular, the composite material can be prepared by combining the polymers with a medium such as and water, and expanding the mixture using a treatment that expands the mixture to produce, for example, insoluble porous foam-like composites.
摘要:
Embodiments of the present technology include a formaldehyde-free binder composition. The composition may include melamine. The composition may also include a reducing sugar. In addition, the binder composition may include a non-carbohydrate aldehyde or ketone. Embodiments may also include a method of making a formaldehyde-free binder composition. The method may include dissolving melamine in an aqueous solution of a reducing sugar. The concentration of the reducing sugar may be 30 wt.% to 70 wt.% of the aqueous solution, which may be at a temperature of 50°C to 100°C. The method may also include adding a non-carbohydrate aldehyde or ketone to the dissolved melamine in the aqueous solution to form a binder solution. The temperature of the aqueous solution of the dissolved melamine may be 50°C to 100°C during the addition of the non-carbohydrate aldehyde or ketone. The method may further include reducing the temperature of the binder solution.
摘要:
A process for making a starch-based resin from a starch-based plant feed stock generally comprising the steps of extracting starch content from prepared feed stock, preparing a dried starch from the extracted starch content that may be polymerized in a reactor with a catalytic material, a petroleum-based plastic resin, a quantity of glycerol, and an oil which is high in free hydrogen, and partially cross-linking the polymerized starch with a petroleum-based plastic resin to form a starch-based resin that may be used to produce starch-based film and bag products and other articles of manufacture that have unique degradation properties is disclosed herein.