A biobased additive is provided that is both a nucleating and a reinforcing agent when added to thermoplastic polyester (e.g., biopolyesters). A composite material, which is an additive-reinforced biopolyester, was prepared and improved thermo-mechanical properties were quantified. This composite material is a new class of biobased material that offers a sustainable, environmentally-friendly solution for packaging and other applications.

A biobased additive is provided that is both a nucleating and a reinforcing agent when added to thermoplastic polyester (e.g., biopolyesters). A composite material, which is an additive-reinforced biopolyester, was prepared and improved thermo-mechanical properties were quantified. This composite material is a new class of biobased material that offers a sustainable, environmentally-friendly solution for packaging and other applications.

A method and device for comminuting a thermoplastic polymer, in particular a thermoplastic elastomer, and for producing therefrom pulverulent materials with a predefined grain distribution, includes the following steps: comminuting the thermoplastic polymer, which is provided in lump form, into a starting powder in a comminuting device, and subsequently screening this starting powder at least once until a predefined grain distribution has been attained. A release agent, which reduces the tack and capability for agglomeration formation of the starting powder, is fed into the comminuting device during the comminuting step.

A method and device for comminuting a thermoplastic polymer, in particular a thermoplastic elastomer, and for producing therefrom pulverulent materials with a predefined grain distribution, includes the following steps: comminuting the thermoplastic polymer, which is provided in lump form, into a starting powder in a comminuting device, and subsequently screening this starting powder at least once until a predefined grain distribution has been attained. A release agent, which reduces the tack and capability for agglomeration formation of the starting powder, is fed into the comminuting device during the comminuting step.

Disclosed are a flame retardant and fully biodegradable plastic, a manufacturing method of the same, and an application of the same. A flame retardant and fully biodegradable plastic, prepared from following components with amount by weight: a biodegradable plastic: 70-95 parts; a flame retardant: 1-15 parts; an anti-oxidant: 0-1 part; a lubricant: 0-2 parts; a compatibility agent: 0-3 parts; and a color powder: 0-5 parts; wherein the biodegradable plastic consists of PBS, PBAT, and PLA, and the weight ratio thereof is PLA:PBAT:PBS=1:(1-4):(0-1); the flame retardant consists of decabromodiphenyl ether and diantimony trioxide, and the weight ratio thereof is decabromodiphenyl ether:diantimony trioxide=1:(1-10).

Disclosed are a flame retardant and fully biodegradable plastic, a manufacturing method of the same, and an application of the same. A flame retardant and fully biodegradable plastic, prepared from following components with amount by weight: a biodegradable plastic: 70-95 parts; a flame retardant: 1-15 parts; an anti-oxidant: 0-1 part; a lubricant: 0-2 parts; a compatibility agent: 0-3 parts; and a color powder: 0-5 parts; wherein the biodegradable plastic consists of PBS, PBAT, and PLA, and the weight ratio thereof is PLA:PBAT:PBS=1:(1-4):(0-1); the flame retardant consists of decabromodiphenyl ether and diantimony trioxide, and the weight ratio thereof is decabromodiphenyl ether:diantimony trioxide=1:(1-10).

Provided is a resin particle producing method including: a fiber aggregate producing step of directly joining fibers containing a thermoplastic resin with each other to obtain a fiber aggregate; and a particle forming step of forming the fiber aggregate into particles to obtain resin particles.

A semicrystalline polyketone powder useful for additive manufacturing may be made by dissolving a polyketone having differential scanning calorimetry (DSC) monomodal melt peak, at a temperature above 50° C. to below the melt temperature of the polyketone, precipitating the dissolved polyketone by cooling, addition of a nonsolvent or combination thereof. The method may be used to form polyketones having a DSC melt peak with an enthalpy greater than the starting polyketone.

A remoldable bismaleimide resin and application thereof. The preparation method includes blending 2-allylphenyl glycidyl ether and terephthalic acid in acetonitrile, carrying out an esterification reaction under the condition of quaternary ammonium salt as a catalyst to obtain bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate containing a reversible dynamic group; then uniformly mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate and bismaleimide, curing to obtain the re-moldable bismaleimide resin. The prepared re-moldable bismaleimide resin not only has excellent heat resistance and mechanical properties, but also can be remolded under hot pressing conditions. The preparation method of the re-moldable bismaleimide resin has the advantages of wide raw material sources and simple process, and has a wide application prospect in the fields of aerospace, transportation, electronic information, new energy, insulated electrical industry and the like.

A remoldable bismaleimide resin and application thereof. The preparation method includes blending 2-allylphenyl glycidyl ether and terephthalic acid in acetonitrile, carrying out an esterification reaction under the condition of quaternary ammonium salt as a catalyst to obtain bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate containing a reversible dynamic group; then uniformly mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate and bismaleimide, curing to obtain the re-moldable bismaleimide resin. The prepared re-moldable bismaleimide resin not only has excellent heat resistance and mechanical properties, but also can be remolded under hot pressing conditions. The preparation method of the re-moldable bismaleimide resin has the advantages of wide raw material sources and simple process, and has a wide application prospect in the fields of aerospace, transportation, electronic information, new energy, insulated electrical industry and the like.