CN104799658A - Method for manufacturing syndiotactic polystyrene chopsticks - Google Patents
Method for manufacturing syndiotactic polystyrene chopsticks Download PDFInfo
- Publication number
- CN104799658A CN104799658A CN201510211071.0A CN201510211071A CN104799658A CN 104799658 A CN104799658 A CN 104799658A CN 201510211071 A CN201510211071 A CN 201510211071A CN 104799658 A CN104799658 A CN 104799658A
- Authority
- CN
- China
- Prior art keywords
- chopsticks
- syndiotactic polystyrene
- syndiotactic
- syndiotactic polytyrene
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Table Equipment (AREA)
Abstract
The invention discloses a method for manufacturing syndiotactic polystyrene chopsticks. The chopsticks disclosed by the invention take syndiotactic polystyrene chopsticks as a substrate and comprises the following components in percentage by weight: 20-40 percent of glass fiber, 52-75 percent of syndiotactic polystyrene and 3-5 percent of gain agent. The method for manufacturing the syndiotactic polystyrene chopsticks comprises the following steps: carrying out mixed melting and extrusion molding on raw materials, and then carrying out preliminary grinding to obtain a matrix body of the chopsticks; and then sequentially carrying out pattern engraving, accurate grinding and spray coating of a nano silver antibacterial coating and a polylactic acid protection film layer to obtain the finished-product chopsticks. The gain agent is one or more of a compatilizer, a toughening agent, a brominated flame retardant, a synergistic flame retardant, an antioxidant, a coupling agent and a lubricating agent. The method disclosed by the invention is simple in manufacturing process, environment-friendly, safe, light in weight and attractive in appearance; the syndiotactic polystyrene is modified by the glass fiber, so that the brittleness of the syndiotactic polystyrene is overcome, high temperature resistance, acid and alkali resistance and good tenacity are achieved, and the molding stability is improved; the syndiotactic polystyrene chopsticks are low in cost; the nano silver antibacterial coating and the polylactic acid protection film layer have favorable bacteria resistance and bacteriostasis functions, and thus the syndiotactic polystyrene chopsticks are relatively long in service life.
Description
Technical field
The present invention relates to chopsticks and manufacture field, specifically a kind of preparation method of syndiotactic polytyrene chopsticks.
Background technology
Chopsticks are indispensable running stores, and chopsticks are on the market divided into wooden chopsticks, bamboo chopsticks, plastic chopsticks, melamine chopsticks, stainless steel chopsticks etc. mostly at present, and bamboo chopsticks, wooden chopsticks production technology are simple, and cost is low, but needs to fall trees in a large number, not environmentally, and easy breed bacteria; The quality such as plastic chopsticks, melamine chopsticks are uneven, and texture is more crisp, is easily out of shape, melts after being heated, and produces insalubrious material; And stainless steel chopsticks quality is heavy, production cost is high, heat conductivility is strong, when overheated food eaten by folder, easily irons lip, use inconvenience; Therefore need to seek a kind of new material for making chopsticks, to solve the problem.
Syndiotactic polystyrene resin (SPS) is the polystyrene of crystallization, it is one of resin the lightest in engineering plastics, be different from the transparent material of ordinary polystyrene, syndiotactic polystyrene resin is creamy white, be not hydrolyzed, resistance to steam, heat resistance be high, fusing point about 270 DEG C, the high heat distortion temperature that GF30% strengthens is about 250 DEG C; Good flowing properties, acid and alkali-resistance, oil resistant, wash resistant solvent, mould reproducibility are good.
Summary of the invention
The object of the present invention is to provide the preparation method of a kind of environment-protecting asepsis, the corrosion-and high-temp-resistant not easily syndiotactic polytyrene chopsticks of breed bacteria, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A preparation method for syndiotactic polytyrene chopsticks, described chopsticks adopt syndiotactic polytyrene as base material, and the preparation method of described syndiotactic polytyrene chopsticks comprises the following steps:
1) to Modification of Syndiotactic Polystyrene, consisting of according to weight portion: the proportioning of 20% ~ 40% glass fibre, 52 ~ 75% syndiotactic polytyrenes and 3% ~ 5% accelerant takes corresponding raw material, and syndiotactic polytyrene and accelerant are mixed by agitating device obtain mixed material, mixed material is joined twin-screw extrusion owner spout, in side, spout adds glass fibre, through melting, extrude;
2) preparatory processing is shaping, sends in mould extruded by the fused mass extruded in step (1), and after the demoulding, cooling, low temperature preliminary grinding obtains chopsticks carcass;
3) refine, the chopsticks carcass obtained is sent into engraving machine engraving lines, then send in the clean sanding machine with dry cotton strap and carry out fine-grinding and polishing in step (2);
4) spray antimicrobial layer, adopts Nano Silver as antibiotic layer, is sprayed on the semi-finished product periphery formation nanometer silver antimicrobial coating that step (3) obtains;
5) spray one deck PLA protective film again in the chopsticks periphery being coated with nanometer silver antimicrobial coating, after the hardening by cooling of PLA protective film, PLA protective film is heat-treated, obtain finished product chopsticks.
As the further scheme of the present invention: described raw material according to the composition of weight portion comprise 30% glass fibre, 66% syndiotactic polytyrene and 4% accelerant.
As the present invention's further scheme: the density of described finished product chopsticks is 1.25, and shrinkage factor is 0.35, hot strength is 118, percentage elongation 2.5, flexural strength 185, heat distortion temperature 251, rupture strength 48.
As the present invention's further scheme: described accelerant is one or more in compatilizer, flexibilizer, brominated flame retardant, synergistic flame retardant, antioxidant, coupling agent, lubricant.
As the present invention's further scheme: the heat treatment temperature of described PLA protective film is 65 ~ 100 DEG C.
Compared with prior art, the invention has the beneficial effects as follows: the present invention adopts glass fibre modification syndiotactic polytyrene as chopsticks base material, do not use timber, can conserve forests and do not cut down, environmental protection more, glass fibre modification syndiotactic polystyrene material can be recycled, and has high temperature resistant, acid-alkali-corrosive-resisting, anti abrasive advantage, can meet the placement demand of high-temperature steam sterilization cabinet equipment; Manufacture craft is simple, anti-microbial property of the present invention is improve by spraying nanometer silver antimicrobial coating and PLA protective film, on chopsticks not easily adhere to, breed bacteria, compare than traditional outer technology of direct coated with nano silver, security performance is better, avoiding silver ion enters in body, and Long-Time Service is to the harm of health; Compared with traditional chopsticks, the present invention is Environmental Safety both, again light and beautiful, high temperature-resistant acid-resistant alkali, and good toughness is with low cost, has good antibacterial and bacteriostasis, longer service life.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
A preparation method for syndiotactic polytyrene chopsticks, described chopsticks adopt syndiotactic polytyrene as base material, and the preparation method of described syndiotactic polytyrene chopsticks comprises the following steps:
1) to Modification of Syndiotactic Polystyrene, consisting of according to weight portion: the proportioning of 20% ~ 40% glass fibre, 52 ~ 75% syndiotactic polytyrenes and 3% ~ 5% accelerant takes corresponding raw material, accelerant is one or more in compatilizer, flexibilizer, brominated flame retardant, synergistic flame retardant, antioxidant, coupling agent, lubricant, syndiotactic polytyrene and accelerant are mixed by agitating device and obtains mixed material, mixed material is joined twin-screw extrusion owner spout, in side, spout adds glass fibre, through melting, extrude;
2) preparatory processing is shaping, sends in mould extruded by the fused mass extruded in step (1), and after the demoulding, cooling, low temperature preliminary grinding obtains chopsticks carcass;
3) refine, the chopsticks carcass obtained is sent into engraving machine engraving lines, then send in the clean sanding machine with dry cotton strap and carry out fine-grinding and polishing in step (2);
4) spray antimicrobial layer, adopts Nano Silver as antibiotic layer, is sprayed on the semi-finished product periphery formation nanometer silver antimicrobial coating that step (3) obtains;
5) spray one deck PLA protective film again in the chopsticks periphery being coated with nanometer silver antimicrobial coating, heat-treat PLA protective film after the hardening by cooling of PLA protective film, heat treatment temperature is 65 ~ 100 DEG C, obtains finished product chopsticks.
Embodiment 1
Take raw material according to the composition of following weight portion: 30% glass fibre, 66% syndiotactic polytyrene and 4% accelerant, by described raw material according to production technology processing above, obtain finishing room stereospecific polymerized styrene chopsticks, the density of described finished product chopsticks is 1.25, shrinkage factor is 0.35, and hot strength is 118, percentage elongation 2.5, flexural strength 185, heat distortion temperature 251, rupture strength 48.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (5)
1. a preparation method for syndiotactic polytyrene chopsticks, described chopsticks adopt syndiotactic polytyrene as base material, it is characterized in that: the preparation method of described syndiotactic polytyrene chopsticks comprises the following steps:
1) to Modification of Syndiotactic Polystyrene, consisting of according to weight portion: the proportioning of 20% ~ 40% glass fibre, 52 ~ 75% syndiotactic polytyrenes and 3% ~ 5% accelerant takes corresponding raw material, and syndiotactic polytyrene and accelerant are mixed by agitating device obtain mixed material, mixed material is joined twin-screw extrusion owner spout, in side, spout adds glass fibre, through melting, extrude;
2) preparatory processing is shaping, sends in mould extruded by the fused mass extruded in step (1), and after the demoulding, cooling, low temperature preliminary grinding obtains chopsticks carcass;
3) refine, the chopsticks carcass obtained is sent into engraving machine engraving lines, then send in the clean sanding machine with dry cotton strap and carry out fine-grinding and polishing in step (2);
4) spray antimicrobial layer, adopts Nano Silver as antibiotic layer, is sprayed on the semi-finished product periphery formation nanometer silver antimicrobial coating that step (3) obtains;
5) spray one deck PLA protective film again in the chopsticks periphery being coated with nanometer silver antimicrobial coating, after the hardening by cooling of PLA protective film, PLA protective film is heat-treated, obtain finished product chopsticks.
2. the preparation method of syndiotactic polytyrene chopsticks according to claim 1, is characterized in that, described raw material comprises according to the composition of weight portion: 30% glass fibre, 66% syndiotactic polytyrene and 4% accelerant.
3. the preparation method of syndiotactic polytyrene chopsticks according to claim 1, it is characterized in that, the density of described finished product chopsticks is 1.25, and shrinkage factor is 0.35, and hot strength is 118, percentage elongation 2.5, flexural strength 185, heat distortion temperature 251, rupture strength 48.
4. the preparation method of syndiotactic polytyrene chopsticks according to claim 1, is characterized in that, described accelerant is one or more in compatilizer, flexibilizer, brominated flame retardant, synergistic flame retardant, antioxidant, coupling agent, lubricant.
5. the preparation method of syndiotactic polytyrene chopsticks according to claim 1, is characterized in that, the heat treatment temperature of described PLA protective film is 65 ~ 100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510211071.0A CN104799658A (en) | 2015-04-29 | 2015-04-29 | Method for manufacturing syndiotactic polystyrene chopsticks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510211071.0A CN104799658A (en) | 2015-04-29 | 2015-04-29 | Method for manufacturing syndiotactic polystyrene chopsticks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104799658A true CN104799658A (en) | 2015-07-29 |
Family
ID=53685196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510211071.0A Pending CN104799658A (en) | 2015-04-29 | 2015-04-29 | Method for manufacturing syndiotactic polystyrene chopsticks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104799658A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497058A (en) * | 2016-10-27 | 2017-03-15 | 张德成 | A kind of novel alloy chopsticks |
| CN109749436A (en) * | 2018-12-05 | 2019-05-14 | 上海普利特伴泰材料科技有限公司 | It is a kind of for making the high-temperature nylon plastic and preparation method thereof of alloy chopsticks |
| CN110063639A (en) * | 2019-05-17 | 2019-07-30 | 永康市木辰子家居用品有限公司 | The production method of chopsticks |
| CN111534014A (en) * | 2020-04-22 | 2020-08-14 | 上海卫好家生物科技有限公司 | Healthy antibacterial chopsticks |
-
2015
- 2015-04-29 CN CN201510211071.0A patent/CN104799658A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497058A (en) * | 2016-10-27 | 2017-03-15 | 张德成 | A kind of novel alloy chopsticks |
| CN109749436A (en) * | 2018-12-05 | 2019-05-14 | 上海普利特伴泰材料科技有限公司 | It is a kind of for making the high-temperature nylon plastic and preparation method thereof of alloy chopsticks |
| CN110063639A (en) * | 2019-05-17 | 2019-07-30 | 永康市木辰子家居用品有限公司 | The production method of chopsticks |
| CN111534014A (en) * | 2020-04-22 | 2020-08-14 | 上海卫好家生物科技有限公司 | Healthy antibacterial chopsticks |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104799658A (en) | Method for manufacturing syndiotactic polystyrene chopsticks | |
| CN103240940B (en) | One moulds wooden co-extrusion section bar and production method thereof | |
| CN103395102B (en) | UV (ultraviolet) paint veneering plywood and method for coating special-shaped base material | |
| WO2015074321A1 (en) | Thermoplastic resin composite material and application thereof | |
| CN105670251A (en) | Low-temperature thermoplastic material for model products and preparation method of low-temperature thermoplastic material | |
| CN109306193A (en) | Polylactic acid/rice hull cellulose composite material preparation method and its application | |
| CN106626444A (en) | Production technology of continuous fiber reinforced thermoplastic composites (CFRTP) pultruded profiles | |
| CN103214843A (en) | Macrofiber-reinforced long carbon chain nylon and preparation method thereof | |
| CN103665614B (en) | Waste and old motorcycle plastic shell reclaims the preparation method of modification production motorcycle PP Pipe Compound | |
| CN103773042A (en) | Plastic-wood section material prepared from bamboo powder and preparation method thereof | |
| CN102070849A (en) | Simulation bentwood for furniture using polystyrene as base material | |
| CN106519595A (en) | Production process of plastic bowl | |
| CN110862616A (en) | Formula and preparation method of scratch-resistant metal texture spraying-free PP composite material | |
| CN113334631A (en) | Production process of high-density environment-friendly flame-retardant pearl cotton | |
| CN107033516A (en) | A kind of preparation method suitable for 3D printing ASA composite material | |
| CN105860331A (en) | Preparation method for producing nano composite PVC (polyvinyl chloride) sheet by using waste PVC | |
| CN101870786A (en) | High-temperature paint protective film without educts | |
| CN113831642B (en) | Application of basalt fiber in spraying-free polypropylene material, composition of basalt fiber and preparation method of composition | |
| CN110183811B (en) | Thermal transfer printing type high-strength all-plastic foaming wood-like material and preparation method thereof | |
| CN103642214A (en) | Low-cost flame-retardant modified nylon material for automobile plastic members | |
| CN104909617A (en) | Lightweight imitation ceramic composite material and preparation method thereof | |
| CN106279972A (en) | A kind of polypropylene composite materials dalle and manufacture method thereof | |
| CN108754861B (en) | Production process of non-woven fabric for leather carving | |
| CN108127836A (en) | Colored carved grain melamine resin tableware manufacturing method | |
| CN112659658A (en) | Low-Vicat high-tensile polycarbonate and polymethyl methacrylate composite board and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |
|
| WD01 | Invention patent application deemed withdrawn after publication |