Tumbling plastic parts is: used for removing flash or uniform finish used for fi

Question

Tumbling plastic parts is: used for removing flash or uniform finish used for finish uniformity removing mold flash used for stress relaxation of thermoses parts common for HOPE pieces The glass transition temperature is: the temperature at which a material changes to a brittle substance from a flexible material the temperature at which a material begins to melt and flow the temperature at which a polymer becomes semi-conductive the temperature at which crystallization begins to occur none of the above CFCs are: Thought to hurt the ozone layer Often used to increase biodegradability Added as plasticizer enhancers Needed for forming cross-linked in silicones Only included in organic polymers Biodegradable additives to enable recycling Plastic sheets are sometimes cut by scoring the part and breaking it: only on straight edged items up to 1/32 inch thick on flexible polymers only up 1/8 inch thick at temperatures over 120 degrees up to 1/16 inch thick W

Explanation / Answer

1) Tymbling plastic parts is,

b. used for fnish uniformity

2) Glass transition temperature is,

b. the temerature at which material starts to melt and flow

3) CFCs are,

a. thought to hurt ozone layer

4) The method od cutting plastuc sheets is by scoring and breaking,

c. on flexible polymers only

5) Additive effective for reducing combustibility of polymers,

c. bromine

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