Bleached extruder chemi-mechanical pulp fiber-PLA composites: Comparison of mechanical, thermal, and rheological properties with those of wood flour-PLA bio-composites

2016 ◽  
Vol 133 (48) ◽  
Author(s):  
Zhaozhe Yang ◽  
Xinhao Feng ◽  
Yongbao Bi ◽  
Zhifang Zhou ◽  
Jinquan Yue ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Wood Flour ◽  
Pulp Fiber ◽  
Mechanical Pulp

Rheological properties of teak wood flour reinforced HDPE and maize starch composites

2020 ◽  
Vol 138 (8) ◽  
pp. 49874
Author(s):  
Kishor Biswas ◽  
Vinay Khandelwal ◽  
Sourindra Maiti
Keyword(s):  
Rheological Properties ◽  
Wood Flour ◽  
Maize Starch ◽  
Teak Wood

scholarly journals Improving fire retardancy of cellulosic thermal insulating materials by coating with bio-based fire retardants

2019 ◽  
Vol 34 (1) ◽  
pp. 96-106 ◽  
Author(s):  
Chao Zheng ◽  
Dongfang Li ◽  
Monica Ek
Keyword(s):  
Raw Materials ◽  
Fire Retardant ◽  
Kraft Lignin ◽  
Pulp Fiber ◽  
Fire Retardants ◽  
Fire Retardancy ◽  
Cone Calorimetry ◽  
Insulating Materials ◽  
Mechanical Pulp ◽  
Thermal Insulating

Abstract Sustainable thermal insulating materials produced from cellulosic fibers provide a viable alternative to plastic insulation foams. Industrially available, abundant, and inexpensive mechanical pulp fiber and recycled textile fiber provide potential raw materials to produce thermal insulating materials. To improve the fire retardancy of low-density thermal insulating materials produced from recycled cotton denim and mechanical pulp fibers, bio-based fire retardants, such as sulfonated kraft lignin, kraft lignin, and nanoclays, were coated onto sustainable insulating material surfaces to enhance their fire retardancy. Microfibrillated cellulose was used as a bio-based binder in the coating formula to disperse and bond the fire-retardant particles to the underlying thermal insulating materials. The flammability of the coated thermal insulating materials was tested using a single-flame source test and cone calorimetry. The results showed that sulfonated kraft lignin-coated cellulosic thermal insulating materials had a better fire retardancy compared with that for kraft lignin with a coating weight of 0.8 kg/m2. Nanoclay-coated samples had the best fire retardancy and did not ignite under a heat flux of 25 kW/m2, as shown by cone calorimetry and single-flame source tests, respectively. These cost-efficient and bio-based fire retardants have broad applications for improving fire retardancy of sustainable thermal insulating materials.

Preparation and Properties of Multi-Layer Composite Paperboard

2013 ◽  
Vol 774-776 ◽  
pp. 1010-1013
Author(s):  
Quan Xiao Liu ◽  
Dan Xi Li ◽  
Fei Ma ◽  
Chang Qing Chen ◽  
Jun Yang
Keyword(s):  
Wheat Straw ◽  
Raw Materials ◽  
Pulp Fiber ◽  
Paper Pulp ◽  
Mechanical Pulp ◽  
Physical Strength ◽  
Chemical Pulp ◽  
Layer Composite ◽  
Wheat Straw Pulp ◽  
The Cost

In order to study the preparation and property of the multi layer composite paperboard, bleached wheat straw pulp, bleached chemical thermal mechanical pulp and waste newsprint pulp are used as raw materials to making paperboard. The results show that the bonding force between fibers of grasses chemical pulp is strong which can improve the bonding strength between the layers. Bleached wheat straw pulp is used as outer layer and waste news paper pulp is used as inner layer to make composite paperboard has high physical properties. Bleached chemical thermal mechanical pulp fiber is shorter, so paperboard tightness and physical strength reduce, which can be used as the lining of the multi layer composite paperboard to improve the stiffness of the paperboard and reduce the cost.

Study of effect of wood-flour content on mechanical, thermal, rheological properties and thermoformability of wood-polypropylene composites

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Deepti Marathe ◽  
Hemant Joshi ◽  
Pratiksha Kambli ◽  
Pramod Joshi
Keyword(s):  
Mechanical Properties ◽  
Rheological Properties ◽  
Wood Flour ◽  
Thickness Distribution ◽  
Flexural Modulus ◽  
Dynamic Mechanical Properties ◽  
Mechanical Analysis ◽  
Small Amplitude Oscillatory Shear ◽  
Polypropylene Composites ◽  
Dynamic Mechanical

Abstract Wood plastic composites (WPC) were made from polypropylene (PP), impact copolymer (ICP) and wood flour (WF) by varying the WF content from 10 to 40% with PP grafted maleic anhydride as a coupling agent. The effect of varying WF content was studied on rheological, thermal, mechanical properties and dynamic mechanical properties. Experimental small amplitude oscillatory shear (SAOS) data was compared with the Einstein–Batchelor and empirical Krieger–Dougherty relations. Significant dependence of mechanical and rheological properties on WF content was observed. Young’s modulus, flexural modulus and dynamic shear viscosity increased with WF content. Results of dynamic mechanical analysis (DMA) showed increase in storage modulus with WF content. Three millimeter thick compression molded composites sheets were thermoformed using axisymmetric molds with two draw depths. Sag observed visually during thermoforming decreased with increasing WF content. Components made from the composites showed close to uniform thickness distribution as compared to those from ICP.

scholarly journals Effect of interfacial modifiers and wood flour treatment on the rheological properties of recycled polyethylene/wood flour composites

2019 ◽  
Vol 36 (1) ◽  
pp. 31-46 ◽  
Author(s):  
Haoqun Hong ◽  
Quannan Guo ◽  
Haiyan Zhang ◽  
Hui He
Keyword(s):  
Mechanical Properties ◽  
Rheological Properties ◽  
Graft Copolymer ◽  
High Performance ◽  
Wood Flour ◽  
Interfacial Interactions ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Recycled Polyethylene ◽  
Processing Properties

The article presents the preparation of a high-performance wood–plastic composites with improved interfacial interactions by adding ternary-monomer graft copolymers as the interfacial modifiers and by braising wood flour (WF) and investigates their effects on the rheological properties of recycled polyethylene (rPE)/WF composites. The processing properties, capillary rheological properties, dynamical rheological properties, and mechanical properties were investigated. Results show that graft copolymer of polyethylene is effective in improving the interfacial interactions of rPE/WF composites, dramatically changing the rheological and mechanical properties. The braising of WF enlarges the gaps of cells and promotes the infiltration of rPE into the gaps, as promoting the increasing in mechanical properties of rPE/WF composites and significantly changing the rheological properties of the composites.

scholarly journals Application of Pulp Fiber for Automotive Brake Lining

2017 ◽  
Vol 3 (2) ◽  
pp. 61-67
Author(s):  
Wawan Kartiwa Haroen ◽  
Posma Reginald Panggabean
Keyword(s):  
High Heat ◽  
Asbestos Fiber ◽  
Pulp Fiber ◽  
Heat Absorption ◽  
Mechanical Pulp ◽  
High Fiber ◽  
Chemical Pulp ◽  
Brake Lining ◽  
Wheeled Vehicles ◽  
Automotive Brake

Mechanical and/or chemical pulp fiber is usually used for papermaking and other kind of paper products. In fact, physical properties of chemical and/or mechanical pulp showed that it can be utilized as filler of automotive brake lining.  Mechanical pulp is non-asbestos cellulosic fiber with high heat absorption rate which can fit into criterion of good quality brake lining. Pulp  fiber was defiberation mixed with some other composite materials can create high fiber bonding with some hardness, friction materials, clutching, heat and dust retainer fiber which is free of asbestos fiber. Current automotive brake lining uses asbestos fiber as main filler, which is in fact known as cancer triggers.  A series of study and assessment in using pulp fiber in a specified composition as brake lining filler have been carried out. The research and field experiment revealed that a mixture of pulp fiber can be further examined and feasible for brake lining prototype filler application which is ready for automotive vehicles operation. The development and application fiber brake lining filler has been tested on two wheeled vehicles with considerable result.

Sign in / Sign up

Export Citation Format

Share Document