The plastic outlet problem is a rigid inflexible material. When assembling with a metal outlet set then it is usually not completely homogeneous. When used The outlet burns out quite often. And the plastic itself is less heat resistant. This allows the plastic to melt burn easily and conform to the upgrade of technology capabilities in precision mold manufacturing. And high complexity The researcher has foreseen the factors in making Developing the design and manufacturing of rubber plug molds economic opportunities for Natural Rubber Applications Therefore came up with the idea to develop the design and material selection. And the factors that affect the production is the mold and the process of forming. To help entrepreneurs to exchange knowledge and study the knowledge from this research to continue in the application of natural rubber to increase future value. From the results and experiments it was found that the study of the method of creating a prototype compression molding kit by using rubber forming techniques can be applied and used by various components of forming rubber can be used to develop forming Rubber plug sockets are possible and this process can produce prototypes from natural rubber.

This research aimed to study the production of a biodegradable film from Jicama starch (Pachyrhizus erosus (L.) Urbar) for plant bag application. The film was prepared by dissolving Jicama starch in water to the concentration of 5 wt%. To study the effect of the glycerol content the glycerol was added at 6 levels; 0 10 20 30 40 50 and 60 wt%. The film was casted in a molded and dried at 60 oC for 24 h. After drying properties of films; thickness water activity (aw) solubility tensile strength (TS) elongation (%E) puncture strength and the degradation of the films were evaluated. The thickness of the films was in the range of 0.16-0.28 mm. The aw of films ranged from 0.36-0.49. The water vapor permeability water solubility and flexibility of the film increased with the increasing of glycerol content. Tensile and puncture strength of the starch films tended to increased when the glycerol content decrease. After the films were buried under the ground (8-10 cm depth) for 12 weeks they were degraded by 100%. The Jicama starch film with 40 wt% glycerol showed the best overall properties.

This research work was to study the toughening modification of polylactic acid by the mixing with epoxidized natural rubber (ENR) and the increase of effectiveness of mechanical properties with a compatibilizer. Enhancement of properties in polylactic acid was evaluated by tensile and impact testings Fourier-transform Infrared Spectroscopy (FTIR) technique Differential Scanning Calorimetry (DSC) technique and Scanning Electron Microscope (SEM). For the addition of ENR it was revealed that the increase of ENR contents improved elongation at break and impact strength but decreased tensile modulus and ultimate tensile strength. Glass transition temperature (Tg) percentage crystallinity and the melting point of polylactic acid tended to decrease with the addition of ENR. Chemical change was found that position of C=O peak in polymer blend was slightly shifted as compared to the spectrum of neat polylactic acid. The optimum formulation for toughening modification was ENR content of 30 wt%. Its impact strength was 1982.55 % of neat polylactic acid. For increasing effectiveness of mechanical properties with a compatibilizer it revealed that the addition of Joncryl ® ADR-4300 as compatibilizer improved both tensile and impact properties. The optimum loading of a compatibilizer for improving mechanical properties was 0.5 wt% of polylactic acid. The decreases of crystallinity and melting point of polylactic acid with adding Joncryl ® ADR-4300 might be because Joncryl ® ADR-4300 was also chain extender of polylactic acid and it might be obstructing crystallization. The presence of Joncryl ® ADR-4300 unaffected on Tg value and chemical change.

This research work was to study the improvement of toughness of polylactic acid (PLA) and the cost reduction of raw material with addition of untreated and treated oil palm fiber (OPF). The detail of this work was divided into two parts. The first was to find the suitable condition for surface treatment of OPF with sodium hydroxide (NaOH). The second part was to study the effect of untreated and treated OPF contents on the mechanical properties of PLA. For surface treatment of OPF NaOH concentrations and immersion times were varied from 0 to 15 wt% and 0 to 30 min respectively. Aspect ratio (L/D) and surface of untreated and treated OPF were investigated by using optical microscope and scanning electron microscope (SEM) respectively. The result suggested that the most suitable condition for surface treatment of OPF was NaOH concentration of 10 wt% at immersion time of 20 min. Treated OPF was occurred microporous and had more rough as compare to untreated fiber. For the effect of untreated and treated OPF contents on the mechanical properties of PLA it was evaluated by tensile and impact testing. SEM was used for investigation of interfacial adhesion and fiber dispersion. The results showed that tensile modulus and impact strength tend to increase with adding 2.5 wt% OPF content and slightly changed at higher OPF content whereas ultimate tensile strength and elongation at break decreased with increasing fiber content. Surface treatment with NaOH led to enhancement of mechanical properties of composite due to improve interfacial adhesion and fiber dispersion.

The preparation of this project is to study the development of contemporary packaging to increase. Sold its remaining output from the agricultural community. A case study of community enterprise products processing. District Doem Bang Nang Buat district. Suphanburi to design and develop a new form of packaging. Technically packaging designAccording to a study by the packaging. Can be divided into two categories : The study design packaging. Can be divided into two categories found. 1. Structural Packaging The format of the package can be purchased on the market. Based on the usage right. To comply with the reduced cost is not very high but can work well. The packaging is a rectangular shape that is easy to deploy overlap. Make no space to display the product for distribution. The packaging of the processed banana products including banana and four rolls of dried banana banana banana chips and stir to choose the material used is aluminum foil bags with zip lock. Has the ability to prevent the protection of gas permeability gas oil and light perfectly. Therefore to protect and preserve the product contained within life. Packaging of carved bamboo shoots. Choose materials that will be used as a glass bottle. Physical properties clean and safe. High heat resistance Last for long After use can be cleaned and recycled into new packaging. Packaging of dried Roselle. Material selection is a clear plastic bag. Made from polyethylene Paulinus ethylene (PE) low density polyethylene (LDPE) and outer structure used to be the box art paper (Art Paper) paper made from chemical pulp. (Pulp manufactured using chemicals) and a smooth surface on one side. The glaze is shiny gloss Or the time A white paper Print images with high detail. The images came out sharp and beautiful. And packaging of sugar cane The material is selected to handle plastic canister with a lid that can be used inside the body. And a belt outer material is coated paper (Art Paper) boxes and packaging units. (Tray forming a rectangle) to select a paper material coated PET plastic that is resistant to moisture and grease. The printing system is offset (Off Set Printing) Printing System is the most commonly used around the world today. Because the prints are streamlined in the artwork. Printing is hassle-free printing multi-color or four-color images with exquisite beauty so much so type in the number. The price will be even lower. 2. Graphic Packaging It is the concept The format used bright colors beautifully. Notably the main color is green. Yellow represents the yield from agriculture. And colors from the color of the underlying agricultural production such as Roselle drying. Use of hibiscus pink and purple. Yellow or brown tones Instead the color of molasses sugar cane used to make patternsillustrations etc. are used as the main characteristics of photo-realistic. The background is a graphic image editor with the content. The story of a product/ product And showcase The identity of the group / community The audience wants to highlight agricultural products. Awards / Portfolio Contest and history/ origin of the Community Enterprise ripe bananas privatization Gold Group has detailed information on the various packaging-related products as required by law. To build confidence the more buyers. The characters used to write a simple and contemporary look flick easily read. The findings Summary of satisfaction on the new packaging. 1. Structural Packaging Has satisfied most of the forms. The overall packaging Are appropriate to the product At the highest level with an average of 4.80 2. Design a graphic package. Most are satisfied with the package. Bright colors are the most beautiful with an average of 4.86