88 results about "High impact polystyrene" patented technology

The invention relates to the technical field of high polymer materials, and discloses a PPE material based on carbon nanotubes and a preparation method thereof. The PPE material prepared by the invention is prepared from the following raw materials in parts by weight: 50-70 parts of polyphenyl ether resin, 8-15 parts of high impact polystyrene, 8-12 parts of modified carbon nanotubes, 5-9 parts of a modified flame retardant, 1-2 parts of a compatilizer, 0.5-1.5 parts of an antioxidant and 0.5-2 parts of a lubricant, the material is an antistatic and flame-retardant material based on carbon nanotubes. Wherein the modified carbon nanotubes can improve the conductivity of the matrix so as to improve the antistatic performance, and the modified flame retardant can have a synergistic effect with phosphate groups in the modified carbon nanotubes so as to significantly improve the flame retardant performance of the matrix.

The invention relates to the technical field of power cables, and provides a medium-voltage power cable and a preparation method thereof.The medium-voltage power cable sequentially comprises a conductor, an insulating layer, an armor layer and a sheath layer from inside to outside, and the sheath layer is prepared from, by weight, 60-70 parts of polystyrene, 10-20 parts of filler, 1-2 parts of antioxidant and 5-10 parts of flame retardant; the polystyrene consists of high impact polystyrene and syndiotactic polystyrene, and the mass ratio of the high impact polystyrene to the syndiotactic polystyrene is (1: 10)-(10: 1). According to the technical scheme, the problem of low strength of the medium-voltage power cable in the prior art is solved.

The invention discloses a halogen-free flame-retardant polyphenyl ether composite material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The composite material is prepared from the following components in parts by weight: 40-70 parts of polyphenyl ether resin, 10-30 parts of high impact polystyrene resin, 4-8 parts of SEBS (Styrene-Ethylene-Butylene-Styrene) resin, 5-10 parts of organic and inorganic composite flame retardant, 3-8 parts of phosphate flame retardant, 1-5 parts of polyborosiloxane and auxiliaries. The core of the organic-inorganic composite flame retardant is that the organic-inorganic composite flame retardant is a core-shell structure particle which takes magnesium-aluminum hydrotalcite and nano silicon dioxide as a core and melamine cyanurate as a shell according to a specific proportion. Through the synergistic effect of all the components, especially the core-shell structure, the dispersity and interfacial compatibility are effectively improved, so that the material achieves excellent flame retardance while maintaining high impact strength and heat resistance, and the UL-94 V-0 grade can still be met even under the condition of a 0.8 mm thin wall. The material is particularly suitable for preparing thin-wall electronic and electrical appliance shells and new energy automobile parts with harsh performance requirements.

The invention relates to the technical field of high polymer materials, and particularly discloses a production process of packaging-grade expandable polystyrene particles. Comprising the following steps: (1) uniformly mixing pure water, an emulsifier and a dispersant, adding a styrene monomer, then adding a nucleating agent, an initiator and high impact polystyrene, starting to introduce steam for heating, stopping steam when the temperature reaches 84-85 DEG C, introducing circulating cooling water when the temperature reaches 87-89 DEG C, and keeping the temperature at 90 + / -0.5 DEG C; and (2) carrying out a low-temperature granulation reaction, adding pentane after granulation is completed, carrying out a high-temperature reaction, cooling after the high-temperature reaction is completed, neutralizing calcium with hydrochloric acid, washing, spraying an antistatic agent, screening, and adding an external lubricant. The packaging-grade expandable polystyrene particles prepared by the invention have better mechanical properties, low styrene residual monomer content and low content of low volatile organic matters such as pentane, meet the requirements of Reach and ROHS certification, and reduce the influence on the environment.

The invention discloses a kind of polyphenylene ether composite material and preparation method thereof, the polyphenylene ether composite material is prepared by weight by the following components:1000 parts of polyphenylene ether, 100 200 parts of high-impact polystyrene, 60 100 parts of polytetrafluoroethylene wax, 200 800 parts of soda lime borosilicate hollow glass microspheres, 2 10 parts of antioxidants.The present invention, by adding polytetrafluoroethylene wax in polyphenylene ether composite material, can not only enhance composition fluidity and plasticizing effect, improve its processing and mechanical property, the dielectric constant of composite material can also be further reduced.Compared with talcum powder, calcium carbonate, borosilicate hollow glass microspheres, soda lime borosilicate hollow glass microspheres are added in the present invention, the tensile strength, shock resistance of composite material can be further improved, the dielectric constant of composite material can also be significantly reduced.

The invention provides polyphenyl ether resin and a preparation method thereof, the polyphenyl ether resin comprises structures shown in a formula (I) and a formula (II) and is prepared through an oxidative polymerization method, the content of the structure shown in the formula (II) in a polymer chain structure is controlled to be 100-10000 ppm, and the heat resistance of the polyphenyl ether resin can be obviously improved; meanwhile, after blending modification with high impact polystyrene (PS), the mechanical property of the alloy resin can be improved. # imgabs0 #

The invention discloses a polyamide / polyphenyl ether alloy material and a manufacturing method thereof, and is used for solving the problems that an existing polyamide / polyphenyl ether alloy material cannot meet UL94 V-0-level flame retardance, high insulativity of CTI greater than or equal to 700V and low precipitation (lt) after long-term damp-heat aging at the same time under the ultra-thin thickness of 0.6 mm; 0.1%) and a high performance retention rate (gt; 90%). The polyamide / polyphenyl ether alloy material comprises the following components in parts by mass: 55-75 parts of polyamide 66 resin; 25 to 45 parts of polyphenyl ether resin pre-irradiated by gamma rays; 10 to 20 parts of a silicone-coated diethyl aluminum phosphinate flame retardant with a core-shell structure; 5-10 parts of a maleic anhydride grafted high impact polystyrene compatilizer pre-irradiated by gamma rays; 20-30 parts of hydrolysis-resistant glass fiber of which the surface is treated by a silane coupling agent; 3-8 parts of tetrapod-like zinc oxide whiskers; 2 to 5 parts of a CTI synergist; and 1-2 parts of an anti-precipitation agent.

The invention discloses an HIPS (High Impact Polystyrene) composite material as well as a preparation method and application thereof. The HIPS composite material comprises the following components in parts by weight: 49-70 parts of HIPS resin, 18-25 parts of a composite antistatic agent, 10-20 parts of a heat-resistant compatilizer, 2-6 parts of a compatilizer and 3-5 parts of a toughening agent, the composite antistatic agent comprises alkyl sodium sulfonate containing 8 to 14 carbon atoms and alkoxy propyl dihydroxyethyl amine; the heat-resistant compatilizer is selected from polyphenyl ether resin and / or GPPS resin; the melt flow rate of the polyphenyl ether resin under the test conditions that the temperature is 315 DEG C and the load is 10kg is 25-45g / 10min; the number-average molecular weight of the GPPS resin is 4.0 * 10 < 4 > to 8.5 * 10 < 4 > g / mol. The HIPS composite material not only has good antistatic performance, but also has excellent heat resistance.

Insulating panel for vehicles suitable for the transport of materials, in particular suitable for the transport of materials at controlled temperatures, comprising: a structural shell (81) made from one or more of the following materials: Polystyrene (PS), High Impact Polystyrene (HIPS), Acrylonitrile Butadiene Styrene (ABS), Polymethyl Methacrylate (PMMA), Polypropylene (PP), Polyvinyl Chloride (PVC); a thermally insulating filler (82), made from a material comprising polyurethane; a reinforcing insert (83), applied between said structural shell (81) and said filler (82).

Aspects of the present disclosure relate to a polyolefin composition and processes suitable for use in forming a lid for a hot food or beverage container that has a stiffness comparable to a similar lid made using high impact polystyrene and a density less than water at 23° C.

The invention relates to the field of high polymer materials for automobiles, and particularly discloses antibacterial HIPS (High Impact Polystyrene) plastic for automobile interiors and a preparation method of the antibacterial HIPS plastic. The antibacterial HIPS plastic for the automotive trim comprises the following raw materials in parts by weight: 80-90 parts of titanium dioxide modified HIPS, 5-10 parts of inorganic metal ion antibacterial fibers, 1-3 parts of an antioxidant, 2-5 parts of a flame retardant, 10-15 parts of an inorganic filler and 2-5 parts of a flexibilizer, raw materials of the titanium dioxide modified HIPS comprise titanium dioxide composite particles and HIPS particles in a mass ratio of (0.5-0.7): (3-5), the titanium dioxide composite particles are of a core-shell structure, a core material is silver-loaded titanium dioxide, and a shell material is aluminum oxide. The antibacterial HIPS plastic for the automotive trim has the advantage of lasting antibacterial property and is not easy to age and degrade, and the service life of the automotive trim is prolonged.

The application relates to the technical field of high-impact polystyrene, in particular to a low-density anti-aging HIPS material and a preparation method and application thereof. The low-density anti-aging HIPS material is prepared from the following raw materials in parts by mass: high-impact polystyrene 50-100 parts, regenerated polyvinyl chloride 10-30 parts, epoxy resin 1-5 parts, nano-zinc oxide 1-5 parts, hindered amine light stabilizer 1-5 parts, foaming agent 5-10 parts, filler 1-5 parts, antioxidant 1-2 parts, compatibilizer 1-2 parts and processing aid 1-2 parts; the foaming agent comprises AC foaming agent, activated silicon dioxide, nano-lanthanum oxide, dicumyl peroxide and polyether amine D230; the activated silicon dioxide is silicon dioxide grafted with a carboxyl-terminated polyamide amine. After being subjected to the action of sunlight, heat and oxygen for a long time, the HIPS material is not prone to phenomena such as yellowing, brittleness, cracking and loss of surface gloss, has excellent anti-aging performance, and has good product mechanical properties and high impact strength.

The present invention belongs to the field of polymer materials technology, specifically relating to a polystyrene material, its preparation method, and application. The polystyrene material comprises the following components, in parts by weight: 10-50 parts high-impact polystyrene resin, 25-40 parts polyphenylene ether resin, 10-20 parts phosphate flame retardant, 5-15 parts flame retardant synergist, 1-20 parts toughening agent, and 0.1-0.5 parts anti-drip agent. The high-impact polystyrene resin has a melt flow index of 3-10 g / 10 min at 200°C and 5 kg; and the polyphenylene ether resin has an intrinsic viscosity of 0.40 dL / g to 0.60 dL / g. The polystyrene material produced by the present invention effectively overcomes the poor toughness of existing halogen-free HIPS materials, achieving high flame retardancy and notched impact strength.

The invention relates to the field of high polymer materials, in particular to a foaming material, a preparation method and application thereof and an inner container of refrigeration equipment. The foaming material comprises the following raw material components: a POE (Polyolefin Elastomer) base material, high impact polystyrene, a modified foaming agent and a compatilizer, wherein the compatilizer is selected from at least one of SEBS (Styrene-Ethylene-Butylene-Styrene) grafted maleic anhydride, PP (Polypropylene) grafted maleic anhydride and POE grafted maleic anhydride; the mass ratio of the POE base material to the compatilizer to the modified foaming agent to the high impact polystyrene is 100: (1-5): (80-100): (800-1000). According to the foaming material, the toughness can be improved, the heat conductivity coefficient is reduced, meanwhile, the mechanical performance and the processing performance of the foaming material cannot be affected, and the problem of cracking is not prone to occurring in the processing process.

Process for preparing a random butadiene-isoprene copolymer having a high content of cis-1,4 units comprising copolymerizing butadiene and isoprene, in the presence of at least one organic solvent, and a catalytic system prepared in situ comprising: (a1) at least one neodymium carboxy late soluble in said organic solvent, containing a variable amount of water, the H2O / Nd molar ratio being between 0.001 / 1 and 0.50 / 1: (a2) at least one aluminum alkyl compound: (a3) at least one aluminum alkyl compound containing at least one halogen atom. The random butadiene-isoprene copolymer having a high content of cis-1.4 units obtained from the abovementioned process may be advantageously used in a number of applications ranging from the modification of plastics [for example, obtainment of high impact polystyrene (HIPS)], to the production of tires, in particular the production of tire treads and / or of tire sidewalls.

The utility model relates to the technical field of HIPS (High Impact Polystyrene) production lines, in particular to a temperature control system of a prepolymerization reaction kettle of an HIPS production line, which comprises a glue solution preheater, a prepolymerization reaction kettle and a temperature control loop, the glue solution preheater is electrically connected with the temperature control loop, the glue solution preheater is used for heating glue solution to enter the prepolymerization reaction kettle, and the temperature control loop is electrically connected with the glue solution preheater. And the temperature control loop is used for controlling the working state of the glue solution preheater so as to keep the glue solution in the prepolymerization reaction kettle in a constant-temperature state. According to the utility model, the glue solution preheater, the pre-polymerization reaction kettle and the temperature control loop are matched, so that the pre-polymerization reaction temperature in the HIPS production process can be well controlled within the range required by the production technology, and the polymerization system in the pre-polymerization reaction kettle can be ensured to meet the purpose of well grafting polystyrene with rubber; and the high-quality high impact polystyrene HIPS product is obtained.

The utility model discloses a high impact polystyrene preparation system, including blender, primary prepolymerization kettle, secondary prepolymerization kettle, reactor and devolatilization ware, primary prepolymerization kettle is connected with blender through first pipeline, secondary prepolymerization kettle is connected with primary prepolymerization kettle through second pipeline, reactor is connected with secondary prepolymerization kettle through third pipeline, and devolatilization ware is connected with secondary prepolymerization kettle through third pipeline. And the devolatilization device is connected with the reactor through a fourth pipeline. According to the high impact polystyrene preparation system disclosed by the utility model, 30% of polymerization reaction conversion is completed through the matching of the first-stage prepolymerization kettle and the second-stage prepolymerization kettle, so that materials can be sheared to be uniform, fine and better subjected to polymerization reaction, the molecular mass distribution of an HIPS (High Impact Polystyrene) polymer is improved, the grafting strength is increased, and the quality of an HIPS product is further improved; due to the cooperation of the first-stage prepolymerization kettle and the second-stage prepolymerization kettle, the temperature during the primary polymerization reaction can be reduced, the reaction rate can be slowed down, and further the generation of reaction heat is reduced, so that the overtemperature and overpressure risk is avoided, and the safety production is ensured.

The invention relates to a high-impact polystyrene material as well as a preparation method and application thereof. The high-impact polystyrene material comprises the following components in parts by weight: 70-80 parts of EPS recycled resin, 5-10 parts of EPE recycled resin, 10-20 parts of an elastomer toughening agent, 2-5 parts of modified calcium carbonate, 0.5-2 parts of an acrylate interface compatibilizer and 0.7-2 parts of an auxiliary agent. Compared with the prior art, a large amount of EPS and EPE waste foam can be recycled, the method is environmentally friendly, and the obtained high-impact polystyrene material is excellent in comprehensive performance.

The invention relates to the field of functional styrene materials, and discloses a fireproof flame-retardant HIPS material and a preparation method thereof. The fireproof flame-retardant HIPS material is prepared from the following raw materials in parts by weight: 100-120 parts of HIPS resin, 12-18 parts of a toughening agent, 10-20 parts of a plasticizer, 7-12 parts of a composite flame retardant and 0.5-2 parts of an antioxidant, the composite flame retardant is composed of a coating agent, an inorganic nano flame retardant, nano silicate and a phosphate flame retardant; the coating agent is prepared from (1-hydroxyl allyl) trimethylsilane, vinyltris (methylethylketoxime) silane and ethylene glycol dimethacrylate. According to the fireproof flame-retardant HIPS material prepared by the invention, the inorganic nano flame retardant is used as a main flame-retardant component, so that the fireproof flame-retardant HIPS material has relatively good fireproof flame-retardant property and mechanical property under the condition that a relatively small amount of flame retardant is added, and is wide in application range.

The invention discloses a preparation method of high-rigidity and high-impact polystyrene resin, and relates to the technical field of polystyrene preparation.The preparation method comprises the steps that a solid premix is added into a main feeding hopper of a co-rotating twin-screw extruder, an elastic functional premix is added into a three-area side feeding hopper of the co-rotating twin-screw extruder, water cooling, air drying and pelletizing are conducted after melt extrusion, and the high-rigidity and high-impact polystyrene resin is obtained. The high-rigidity and high-impact polystyrene resin is obtained. According to the invention, the styrene-butadiene-styrene block copolymer and the hydrogenated styrene-butadiene-styrene block copolymer are compounded as a toughening modification material of polystyrene resin, and the styrene-butadiene-styrene block copolymer can effectively improve the impact response of the material at normal temperature; and the hydrogenated structure of the hydrogenated styrene-butadiene-styrene block copolymer can enhance the toughness maintaining capability of the material in a low-temperature environment, so that sudden impact strength drop caused by molecular chain embrittlement at low temperature is avoided, and the effect of synergistically improving the impact resistance of polystyrene at normal temperature and low temperature is achieved.

A plant for the production of insulating panels for vehicles suitable for the transport of materials, in particular suitable for the transport of materials at a controlled temperature, preferably food transport, said plant (1) comprising: a thermoforming station (100), comprising: a substantially horizontal wall (101), having an upper surface (101a) and a lower surface (101b), said wall (101) also having a through opening (102) and a sealing element (103) positioned on said upper surface (101a) around said opening (102), wherein said opening (102) and said sealing element (103) define an operating position (P2) for a sheet material (2), wherein said material (2) is a plastic material comprising one or more of: Polystyrene (PS), High Impact Polystyrene (HIPS), Acrylonitrile Butadiene Styrene (ABS), Polymethyl Methacrylate (PMMA), Polypropylene (PP), Polyvinyl chloride (PVC) and similar; a heating member (120), controllable between a distal position (PD) and a proximal position (PP) with respect to said operating position (P2); a motorized mould (130), configured to be brought to said operating position (P2) so as to thermoform said material (2) into a sheet; a first pressure system (140), configured to operate on said operating position (P2) so that at least part of said thermoforming occurs under controlled pressure conditions. Said thermoforming station (100) is configured to supply thermoformed sheets (3) at the output, to obtain an assembly of thermoformed panels (4). The plant also comprises: a foaming station (500), configured to perform a foaming of thermoformed panels (41-43) obtained from said thermoforming station (100), obtaining corresponding foamed thermoformed panels (41'-43'), and to perform a moulding of said foamed thermoformed panels (41'-43').

The present invention discloses a regenerated HIPS / PPO alloy material based on chemical and physical co-modification, which is mainly composed of the following components in parts by mass: waste HIPS 60-70, PPO 30-40, HIPS-based macromolecular chain extender 2-8, elastomer toughening agent 2-10, oxazoline chain extender 0.2-1, and chain-extension catalyst 0.1-0.4. The alloy material uses chemical modification of in-situ chain extension and compatibilization of the macromolecular chain extender to restore a molecular chain structure, improve a phase interface and increase compatibility of the alloy. Through physical modification introduced by adding the elastomer toughening agent, a combined effect of chemical modification and physical modification is exploited, with target properties improved, a regenerated plastic alloy material with an excellent comprehensive property prepared, and the waste fully utilized to achieve energy saving and emission reduction. A method for preparing the above-described alloy material is also disclosed.

The invention discloses a preparation method of a 5-fluorouracil / high impact polystyrene anti-tumor implantation stent. The preparation method comprises the following steps: S1, uniformly mixing 5-fluorouracil with the mass fraction of 0.5%-1% and high impact polystyrene granules with the mass fraction of 99%-99.5%; s2, a screw extruder and a traction machine are cooperatively used, and the raw materials obtained in the step S1 are prepared into a uniform and smooth wire rod with the specific diameter through the hot melt extrusion technology; and S3, printing an anti-tumor stent entity by using the wire obtained in the step S2 through a 3D printing technology. The prepared 5-fluorouracil / high impact polystyrene anti-tumor implant stent has certain biocompatibility, high drug bioavailability and certain slow release effect, can effectively induce death of cancer cells and inhibit growth of tumors, and meanwhile, reduces toxic and side effects of anti-cancer drugs.

The invention discloses a polystyrene production system and method and application thereof, the system comprises a prepolymerization unit, a polymerization unit, a devolatilization unit and a monomer recovery unit which are connected in series, the prepolymerization unit comprises two stages of prepolymerization kettles, the polymerization unit comprises three stages of polymerization reactors, and the monomer recovery unit is a rectifying tower. The system can be applied to preparation of high-impact polystyrene, universal polystyrene, styrene copolymers and the like. According to the polystyrene production system and method disclosed by the invention, a two-stage pre-polymerization and three-stage polymerization series form is adopted, so that the conversion rate of the system is effectively improved, and residues are few; and the batching unit is arranged, so that monomer feeding can be realized, and different types of high-quality products can be produced.

The invention discloses a high impact polystyrene test method, electronic equipment and a program product, and relates to the technical field of high impact polystyrene, the method comprises the following steps: building a fully branched polybutadiene model by using butadiene as a monomer; initiating styrene monomer polymerization by taking the first active site in the polybutadiene model as a seed to obtain a cross-linked phase molecular chain of polybutadiene and polystyrene; mixing the cross-linked phase molecular chain with a plurality of pure polystyrene molecular chains to construct a high-impact polystyrene chemical model; a molecular chain space structure of the high-impact polystyrene chemical model is optimized based on a molecular dynamics simulation principle, and a high-impact polystyrene material model meeting preset physical characteristics of the high-impact polystyrene material is obtained; and simulating a mechanical property change rule of the high impact polystyrene material model in a preset extreme test environment to obtain a test result. By adopting the method, the problem that the test result is inaccurate due to the fact that the test environment is easily limited in an extreme test environment can be solved.

The invention relates to a combustion ball of a remote projection type ignition device in forest and an ignition system, and the combustion ball comprises a plastic ball shell made of high impact polystyrene; the potassium permanganate powder is packaged in the spherical shell; the liquid reagent is mixed with the potassium permanganate in a mechanical injection manner during use; wherein the liquid reagent is a mixture of ethylene glycol and water, and delayed ignition time of 20-60 seconds is generated after the potassium permanganate powder and the liquid reagent are mixed by regulating and controlling the mass of the potassium permanganate powder and the composition and the volume of the liquid reagent. The remote projection type ignition system comprises the combustion ball and a liquid bottle used for storing the liquid reagent. The injection device is used for injecting the liquid reagent into the combustion ball from the liquid bottle; and the launching device is used for projecting the combustion ball injected with the liquid reagent to a target area. The device has the effects of being high in safety, high in operation efficiency, stable and reliable.

The invention discloses a flame-retardant HIPS (High Impact Polystyrene) composite material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The flame-retardant HIPS composite material provided by the invention is prepared from the following components in parts by mass: 38 to 62 parts of GPPS resin, 12 to 28 parts of SEBS rubber, 5 to 15 parts of potassium titanate fiber, 12 to 19 parts of brominated flame retardant, 2.5 to 4 parts of antimony flame retardant and 1 to 7 parts of compatilizer. The average diameter of the potassium titanate fiber is 0.1 to 0.6 mu m; the compatilizer comprises SEBS (styrene-ethylene-butylene-styrene) grafted maleic anhydride. The flame-retardant HIPS composite material provided by the invention still has good rigidity and toughness when being prepared into a thin-wall product, and has excellent flame retardance, and the flame-retardant grade can reach 5VA grade.

The application discloses a kind of high impact polystyrene resin and preparation method and application, the resin is made of raw materials including as follows: styrene monomer 83~87wt%, composite rubber 7~11wt%, mineral oil 0.7~3.2wt%, zinc stearate 0.5~2.8wt%;Wherein, the composite rubber includes the first particle with particle size 0.1~1 μm and the second particle with particle size 1~6 μm, the mass ratio of the first particle and the second particle is 15~30:70~85.The preparation method provided by the application adopts multiple reactor and controls reaction parameter gradually, and focuses on adjusting the stirring speed in the process of pre-polymerization of composite rubber type, so that the prepared resin has higher gloss and better mechanical properties.

In the first step of the manufacturing process according to the invention, matrices in the form of hollow structures are printed as negatives using a 3D printer. Materials soluble in common solvents are used as the starting material. These soluble materials are printed with the intention of being dissolved in a later step of the manufacturing process. Preferably, the most common soluble filament materials, such as HIPS and PVA, are used. In the second step, these hollow structures (and thus their surfaces) can be coated from the inside and, if necessary, also (partially) from the outside using highly temperature-sensitive coating processes such as chemical vapor deposition (CVD) or chemical vapor infiltration (CVI) with the aid of suitable precursor compounds, so that structures are created as positives on the surfaces of the hollow structure (matrix). For this purpose, suitable precursors are provided, enabling for the first time the deposition on and in such matrix materials that could not previously be coated; certainly not in the form of negatives produced by 3D printing, since these matrix structures are, in some cases, very temperature-sensitive materials. In the third and final step, the negative is dissolved in a suitable solvent (e.g., water for PVA or limonene for HIPS) to separate it from the contiguous structure, thus removing the positive from the negative. The released positive structure forms the desired component. After purification to remove any remaining matrix material, the resulting micro- or nanocomponent is ready for use.

The present invention provides a preparation method for high impact polystyrene (HIPS) and a HIPS prepared thereby. In the present invention, a chain transfer agent and / or a low-molecular-weight vinyl aromatic polymer is added to a mixture solution of a vinyl aromatic monomer, a solvent, a rubber and an adjuvant, and prepolymerization is performed under stirring, followed by final polymerization and devolatilization to form HIPS. In the present invention, the morphological structure of a rubber phase can be maintained by appropriately reducing a viscosity of a prepolymerized continuous phase. Within a certain range of shearing rate, the morphological structure of the prepared HIPS can be maintained to improve the impact strength.